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Merge branch 'master' of git://github.com/peterix/dfhack

develop
Robert Heinrich 2012-04-02 20:33:29 +02:00
parent 9cc2040a6b 467f4108ae
commit 707aee82bd
105 changed files with 9949 additions and 6448 deletions
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2
CMakeLists.txt
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@ -82,6 +82,8 @@ SET(DFHACK_DATA_DESTINATION hack)
SET(DFHACK_PLUGIN_DESTINATION hack/plugins)
# dfhack header files go here:
SET(DFHACK_INCLUDES_DESTINATION hack/include)
# dfhack lua files go here:
SET(DFHACK_LUA_DESTINATION hack/lua)
# the windows .lib file goes here:
SET(DFHACK_DEVLIB_DESTINATION hack)

9
depends/lua/CMakeLists.txt
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@ -1,8 +1,7 @@
PROJECT ( lua CXX )
CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
# TODO: make this RelWithDebInfo only
ADD_DEFINITIONS(-DLUA_USE_APICHECK)
SET(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-DLUA_USE_APICHECK")
IF(WIN32)
ADD_DEFINITIONS(-D_CRT_SECURE_NO_DEPRECATE )
@ -17,10 +16,10 @@ IF(UNIX)
ENDIF()
SET (HDR_LIBLUA
include/bit.h
include/lapi.h
include/lauxlib.h
include/lcode.h
include/lctype.h
include/ldebug.h
include/ldo.h
include/lfunc.h
@ -50,7 +49,10 @@ SET (SRC_LIBLUA
src/lapi.c
src/lauxlib.c
src/lbaselib.c
src/lbitlib.c
src/lcode.c
src/lcorolib.c
src/lctype.c
src/ldblib.c
src/ldebug.c
src/ldo.c
@ -76,7 +78,6 @@ src/ltm.c
src/lundump.c
src/lvm.c
src/lzio.c
src/bit.c
)
# compile with C++ compiler
set_source_files_properties(${SRC_LIBLUA} PROPERTIES LANGUAGE CXX)

2
depends/lua/README
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@ -1,4 +1,4 @@
README for Lua 5.1
README for Lua 5.2
See INSTALL for installation instructions.
See HISTORY for a summary of changes since the last released version.

17
depends/lua/include/bit.h
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@ -1,17 +0,0 @@
#ifndef BIT_H
#define BIT_H
#define LUA_BITOP_VERSION "1.0.1"
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#ifdef __cplusplus
extern "C" {
#endif
LUALIB_API int luaopen_bit(lua_State *L);
#ifdef __cplusplus
}
#endif
#endif // BIT_H

14
depends/lua/include/lapi.h
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@ -1,5 +1,5 @@
/*
** $Id: lapi.h,v 2.2.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lapi.h,v 2.7 2009/11/27 15:37:59 roberto Exp $
** Auxiliary functions from Lua API
** See Copyright Notice in lua.h
*/
@ -8,9 +8,17 @@
#define lapi_h
#include "lobject.h"
#include "llimits.h"
#include "lstate.h"
#define api_incr_top(L) {L->top++; api_check(L, L->top <= L->ci->top, \
"stack overflow");}
#define adjustresults(L,nres) \
{ if ((nres) == LUA_MULTRET && L->ci->top < L->top) L->ci->top = L->top; }
#define api_checknelems(L,n) api_check(L, (n) < (L->top - L->ci->func), \
"not enough elements in the stack")
LUAI_FUNC void luaA_pushobject (lua_State *L, const TValue *o);
#endif

126
depends/lua/include/lauxlib.h
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@ -1,5 +1,5 @@
/*
** $Id: lauxlib.h,v 1.88.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lauxlib.h,v 1.120 2011/11/29 15:55:08 roberto Exp $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
@ -15,18 +15,6 @@
#include "lua.h"
#if defined(LUA_COMPAT_GETN)
LUALIB_API int (luaL_getn) (lua_State *L, int t);
LUALIB_API void (luaL_setn) (lua_State *L, int t, int n);
#else
#define luaL_getn(L,i) ((int)lua_objlen(L, i))
#define luaL_setn(L,i,j) ((void)0) /* no op! */
#endif
#if defined(LUA_COMPAT_OPENLIB)
#define luaI_openlib luaL_openlib
#endif
/* extra error code for `luaL_load' */
#define LUA_ERRFILE (LUA_ERRERR+1)
@ -38,14 +26,12 @@ typedef struct luaL_Reg {
} luaL_Reg;
LUALIB_API void (luaL_checkversion_) (lua_State *L, lua_Number ver);
#define luaL_checkversion(L) luaL_checkversion_(L, LUA_VERSION_NUM)
LUALIB_API void (luaI_openlib) (lua_State *L, const char *libname,
const luaL_Reg *l, int nup);
LUALIB_API void (luaL_register) (lua_State *L, const char *libname,
const luaL_Reg *l);
LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e);
LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e);
LUALIB_API int (luaL_typerror) (lua_State *L, int narg, const char *tname);
LUALIB_API const char *(luaL_tolstring) (lua_State *L, int idx, size_t *len);
LUALIB_API int (luaL_argerror) (lua_State *L, int numarg, const char *extramsg);
LUALIB_API const char *(luaL_checklstring) (lua_State *L, int numArg,
size_t *l);
@ -57,12 +43,17 @@ LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int nArg, lua_Number def);
LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg);
LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg,
lua_Integer def);
LUALIB_API lua_Unsigned (luaL_checkunsigned) (lua_State *L, int numArg);
LUALIB_API lua_Unsigned (luaL_optunsigned) (lua_State *L, int numArg,
lua_Unsigned def);
LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg);
LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t);
LUALIB_API void (luaL_checkany) (lua_State *L, int narg);
LUALIB_API int (luaL_newmetatable) (lua_State *L, const char *tname);
LUALIB_API void (luaL_setmetatable) (lua_State *L, const char *tname);
LUALIB_API void *(luaL_testudata) (lua_State *L, int ud, const char *tname);
LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname);
LUALIB_API void (luaL_where) (lua_State *L, int lvl);
@ -71,25 +62,41 @@ LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...);
LUALIB_API int (luaL_checkoption) (lua_State *L, int narg, const char *def,
const char *const lst[]);
LUALIB_API int (luaL_fileresult) (lua_State *L, int stat, const char *fname);
LUALIB_API int (luaL_execresult) (lua_State *L, int stat);
/* pre-defined references */
#define LUA_NOREF (-2)
#define LUA_REFNIL (-1)
LUALIB_API int (luaL_ref) (lua_State *L, int t);
LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref);
LUALIB_API int (luaL_loadfile) (lua_State *L, const char *filename);
LUALIB_API int (luaL_loadbuffer) (lua_State *L, const char *buff, size_t sz,
const char *name);
LUALIB_API int (luaL_loadfilex) (lua_State *L, const char *filename,
const char *mode);
#define luaL_loadfile(L,f) luaL_loadfilex(L,f,NULL)
LUALIB_API int (luaL_loadbufferx) (lua_State *L, const char *buff, size_t sz,
const char *name, const char *mode);
LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s);
LUALIB_API lua_State *(luaL_newstate) (void);
LUALIB_API int (luaL_len) (lua_State *L, int idx);
LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p,
const char *r);
LUALIB_API const char *(luaL_findtable) (lua_State *L, int idx,
const char *fname, int szhint);
LUALIB_API void (luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup);
LUALIB_API int (luaL_getsubtable) (lua_State *L, int idx, const char *fname);
LUALIB_API void (luaL_traceback) (lua_State *L, lua_State *L1,
const char *msg, int level);
LUALIB_API void (luaL_requiref) (lua_State *L, const char *modname,
lua_CFunction openf, int glb);
/*
** ===============================================================
@ -97,6 +104,12 @@ LUALIB_API const char *(luaL_findtable) (lua_State *L, int idx,
** ===============================================================
*/
#define luaL_newlibtable(L,l) \
lua_createtable(L, 0, sizeof(l)/sizeof((l)[0]) - 1)
#define luaL_newlib(L,l) (luaL_newlibtable(L,l), luaL_setfuncs(L,l,0))
#define luaL_argcheck(L, cond,numarg,extramsg) \
((void)((cond) || luaL_argerror(L, (numarg), (extramsg))))
#define luaL_checkstring(L,n) (luaL_checklstring(L, (n), NULL))
@ -118,56 +131,81 @@ LUALIB_API const char *(luaL_findtable) (lua_State *L, int idx,
#define luaL_opt(L,f,n,d) (lua_isnoneornil(L,(n)) ? (d) : f(L,(n)))
#define luaL_loadbuffer(L,s,sz,n) luaL_loadbufferx(L,s,sz,n,NULL)
/*
** {======================================================
** Generic Buffer manipulation
** =======================================================
*/
typedef struct luaL_Buffer {
char *p; /* current position in buffer */
int lvl; /* number of strings in the stack (level) */
char *b; /* buffer address */
size_t size; /* buffer size */
size_t n; /* number of characters in buffer */
lua_State *L;
char buffer[LUAL_BUFFERSIZE];
char initb[LUAL_BUFFERSIZE]; /* initial buffer */
} luaL_Buffer;
#define luaL_addchar(B,c) \
((void)((B)->p < ((B)->buffer+LUAL_BUFFERSIZE) || luaL_prepbuffer(B)), \
(*(B)->p++ = (char)(c)))
/* compatibility only */
#define luaL_putchar(B,c) luaL_addchar(B,c)
#define luaL_addchar(B,c) \
((void)((B)->n < (B)->size || luaL_prepbuffsize((B), 1)), \
((B)->b[(B)->n++] = (c)))
#define luaL_addsize(B,n) ((B)->p += (n))
#define luaL_addsize(B,s) ((B)->n += (s))
LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B);
LUALIB_API char *(luaL_prepbuffer) (luaL_Buffer *B);
LUALIB_API char *(luaL_prepbuffsize) (luaL_Buffer *B, size_t sz);
LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l);
LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s);
LUALIB_API void (luaL_addvalue) (luaL_Buffer *B);
LUALIB_API void (luaL_pushresult) (luaL_Buffer *B);
LUALIB_API void (luaL_pushresultsize) (luaL_Buffer *B, size_t sz);
LUALIB_API char *(luaL_buffinitsize) (lua_State *L, luaL_Buffer *B, size_t sz);
#define luaL_prepbuffer(B) luaL_prepbuffsize(B, LUAL_BUFFERSIZE)
/* }====================================================== */
/* compatibility with ref system */
/* pre-defined references */
#define LUA_NOREF (-2)
#define LUA_REFNIL (-1)
/*
** {======================================================
** File handles for IO library
** =======================================================
*/
/*
** A file handle is a userdata with metatable 'LUA_FILEHANDLE' and
** initial structure 'luaL_Stream' (it may contain other fields
** after that initial structure).
*/
#define LUA_FILEHANDLE "FILE*"
typedef struct luaL_Stream {
FILE *f; /* stream (NULL for incompletely created streams) */
lua_CFunction closef; /* to close stream (NULL for closed streams) */
} luaL_Stream;
/* }====================================================== */
#define lua_ref(L,lock) ((lock) ? luaL_ref(L, LUA_REGISTRYINDEX) : \
(lua_pushstring(L, "unlocked references are obsolete"), lua_error(L), 0))
#define lua_unref(L,ref) luaL_unref(L, LUA_REGISTRYINDEX, (ref))
/* compatibility with old module system */
#if defined(LUA_COMPAT_MODULE)
#define lua_getref(L,ref) lua_rawgeti(L, LUA_REGISTRYINDEX, (ref))
LUALIB_API void (luaL_pushmodule) (lua_State *L, const char *modname,
int sizehint);
LUALIB_API void (luaL_openlib) (lua_State *L, const char *libname,
const luaL_Reg *l, int nup);
#define luaL_register(L,n,l) (luaL_openlib(L,(n),(l),0))
#endif
#define luaL_reg luaL_Reg
#endif

21
depends/lua/include/lcode.h
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@ -1,5 +1,5 @@
/*
** $Id: lcode.h,v 1.48.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lcode.h,v 1.58 2011/08/30 16:26:41 roberto Exp $
** Code generator for Lua
** See Copyright Notice in lua.h
*/
@ -21,13 +21,13 @@
/*
** grep "ORDER OPR" if you change these enums
** grep "ORDER OPR" if you change these enums (ORDER OP)
*/
typedef enum BinOpr {
OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW,
OPR_CONCAT,
OPR_NE, OPR_EQ,
OPR_LT, OPR_LE, OPR_GT, OPR_GE,
OPR_EQ, OPR_LT, OPR_LE,
OPR_NE, OPR_GT, OPR_GE,
OPR_AND, OPR_OR,
OPR_NOBINOPR
} BinOpr;
@ -36,14 +36,17 @@ typedef enum BinOpr {
typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr;
#define getcode(fs,e) ((fs)->f->code[(e)->u.s.info])
#define getcode(fs,e) ((fs)->f->code[(e)->u.info])
#define luaK_codeAsBx(fs,o,A,sBx) luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx)
#define luaK_setmultret(fs,e) luaK_setreturns(fs, e, LUA_MULTRET)
#define luaK_jumpto(fs,t) luaK_patchlist(fs, luaK_jump(fs), t)
LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx);
LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C);
LUAI_FUNC int luaK_codek (FuncState *fs, int reg, int k);
LUAI_FUNC void luaK_fixline (FuncState *fs, int line);
LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n);
LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n);
@ -52,12 +55,14 @@ LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s);
LUAI_FUNC int luaK_numberK (FuncState *fs, lua_Number r);
LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e);
LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_exp2anyregup (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e);
LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key);
LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k);
LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_goiffalse (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e);
LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults);
LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e);
@ -65,11 +70,13 @@ LUAI_FUNC int luaK_jump (FuncState *fs);
LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret);
LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target);
LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list);
LUAI_FUNC void luaK_patchclose (FuncState *fs, int list, int level);
LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2);
LUAI_FUNC int luaK_getlabel (FuncState *fs);
LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v);
LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v, int line);
LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v);
LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, expdesc *v2);
LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1,
expdesc *v2, int line);
LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore);

95
depends/lua/include/lctype.h
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@ -0,0 +1,95 @@
/*
** $Id: lctype.h,v 1.12 2011/07/15 12:50:29 roberto Exp $
** 'ctype' functions for Lua
** See Copyright Notice in lua.h
*/
#ifndef lctype_h
#define lctype_h
#include "lua.h"
/*
** WARNING: the functions defined here do not necessarily correspond
** to the similar functions in the standard C ctype.h. They are
** optimized for the specific needs of Lua
*/
#if !defined(LUA_USE_CTYPE)
#if 'A' == 65 && '0' == 48
/* ASCII case: can use its own tables; faster and fixed */
#define LUA_USE_CTYPE 0
#else
/* must use standard C ctype */
#define LUA_USE_CTYPE 1
#endif
#endif
#if !LUA_USE_CTYPE /* { */
#include <limits.h>
#include "llimits.h"
#define ALPHABIT 0
#define DIGITBIT 1
#define PRINTBIT 2
#define SPACEBIT 3
#define XDIGITBIT 4
#define MASK(B) (1 << (B))
/*
** add 1 to char to allow index -1 (EOZ)
*/
#define testprop(c,p) (luai_ctype_[(c)+1] & (p))
/*
** 'lalpha' (Lua alphabetic) and 'lalnum' (Lua alphanumeric) both include '_'
*/
#define lislalpha(c) testprop(c, MASK(ALPHABIT))
#define lislalnum(c) testprop(c, (MASK(ALPHABIT) | MASK(DIGITBIT)))
#define lisdigit(c) testprop(c, MASK(DIGITBIT))
#define lisspace(c) testprop(c, MASK(SPACEBIT))
#define lisprint(c) testprop(c, MASK(PRINTBIT))
#define lisxdigit(c) testprop(c, MASK(XDIGITBIT))
/*
** this 'ltolower' only works for alphabetic characters
*/
#define ltolower(c) ((c) | ('A' ^ 'a'))
/* two more entries for 0 and -1 (EOZ) */
LUAI_DDEC const lu_byte luai_ctype_[UCHAR_MAX + 2];
#else /* }{ */
/*
** use standard C ctypes
*/
#include <ctype.h>
#define lislalpha(c) (isalpha(c) || (c) == '_')
#define lislalnum(c) (isalnum(c) || (c) == '_')
#define lisdigit(c) (isdigit(c))
#define lisspace(c) (isspace(c))
#define lisprint(c) (isprint(c))
#define lisxdigit(c) (isxdigit(c))
#define ltolower(c) (tolower(c))
#endif /* } */
#endif

21
depends/lua/include/ldebug.h
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@ -1,5 +1,5 @@
/*
** $Id: ldebug.h,v 2.3.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: ldebug.h,v 2.7 2011/10/07 20:45:19 roberto Exp $
** Auxiliary functions from Debug Interface module
** See Copyright Notice in lua.h
*/
@ -13,21 +13,22 @@
#define pcRel(pc, p) (cast(int, (pc) - (p)->code) - 1)
#define getline(f,pc) (((f)->lineinfo) ? (f)->lineinfo[pc] : 0)
#define getfuncline(f,pc) (((f)->lineinfo) ? (f)->lineinfo[pc] : 0)
#define resethookcount(L) (L->hookcount = L->basehookcount)
/* Active Lua function (given call info) */
#define ci_func(ci) (clLvalue((ci)->func))
LUAI_FUNC void luaG_typeerror (lua_State *L, const TValue *o,
LUAI_FUNC l_noret luaG_typeerror (lua_State *L, const TValue *o,
const char *opname);
LUAI_FUNC void luaG_concaterror (lua_State *L, StkId p1, StkId p2);
LUAI_FUNC void luaG_aritherror (lua_State *L, const TValue *p1,
LUAI_FUNC l_noret luaG_concaterror (lua_State *L, StkId p1, StkId p2);
LUAI_FUNC l_noret luaG_aritherror (lua_State *L, const TValue *p1,
const TValue *p2);
LUAI_FUNC int luaG_ordererror (lua_State *L, const TValue *p1,
LUAI_FUNC l_noret luaG_ordererror (lua_State *L, const TValue *p1,
const TValue *p2);
LUAI_FUNC void luaG_runerror (lua_State *L, const char *fmt, ...);
LUAI_FUNC void luaG_errormsg (lua_State *L);
LUAI_FUNC int luaG_checkcode (const Proto *pt);
LUAI_FUNC int luaG_checkopenop (Instruction i);
LUAI_FUNC l_noret luaG_runerror (lua_State *L, const char *fmt, ...);
LUAI_FUNC l_noret luaG_errormsg (lua_State *L);
#endif

33
depends/lua/include/ldo.h
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@ -1,5 +1,5 @@
/*
** $Id: ldo.h,v 2.7.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: ldo.h,v 2.20 2011/11/29 15:55:08 roberto Exp $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
@ -13,45 +13,34 @@
#include "lzio.h"
#define luaD_checkstack(L,n) \
if ((char *)L->stack_last - (char *)L->top <= (n)*(int)sizeof(TValue)) \
luaD_growstack(L, n); \
else condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1));
#define luaD_checkstack(L,n) if (L->stack_last - L->top <= (n)) \
luaD_growstack(L, n); else condmovestack(L);
#define incr_top(L) {luaD_checkstack(L,1); L->top++;}
#define incr_top(L) {L->top++; luaD_checkstack(L,0);}
#define savestack(L,p) ((char *)(p) - (char *)L->stack)
#define restorestack(L,n) ((TValue *)((char *)L->stack + (n)))
#define saveci(L,p) ((char *)(p) - (char *)L->base_ci)
#define restoreci(L,n) ((CallInfo *)((char *)L->base_ci + (n)))
/* results from luaD_precall */
#define PCRLUA 0 /* initiated a call to a Lua function */
#define PCRC 1 /* did a call to a C function */
#define PCRYIELD 2 /* C funtion yielded */
/* type of protected functions, to be ran by `runprotected' */
typedef void (*Pfunc) (lua_State *L, void *ud);
LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name);
LUAI_FUNC void luaD_callhook (lua_State *L, int event, int line);
LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name,
const char *mode);
LUAI_FUNC void luaD_hook (lua_State *L, int event, int line);
LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults);
LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults);
LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults,
int allowyield);
LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u,
ptrdiff_t oldtop, ptrdiff_t ef);
LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult);
LUAI_FUNC void luaD_reallocCI (lua_State *L, int newsize);
LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize);
LUAI_FUNC void luaD_growstack (lua_State *L, int n);
LUAI_FUNC void luaD_shrinkstack (lua_State *L);
LUAI_FUNC void luaD_throw (lua_State *L, int errcode);
LUAI_FUNC l_noret luaD_throw (lua_State *L, int errcode);
LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud);
LUAI_FUNC void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop);
#endif

6
depends/lua/include/lfunc.h
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lfunc.h,v 2.4.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lfunc.h,v 2.6 2010/06/04 13:06:15 roberto Exp $
** Auxiliary functions to manipulate prototypes and closures
** See Copyright Notice in lua.h
*/
@ -19,8 +19,8 @@
LUAI_FUNC Proto *luaF_newproto (lua_State *L);
LUAI_FUNC Closure *luaF_newCclosure (lua_State *L, int nelems, Table *e);
LUAI_FUNC Closure *luaF_newLclosure (lua_State *L, int nelems, Table *e);
LUAI_FUNC Closure *luaF_newCclosure (lua_State *L, int nelems);
LUAI_FUNC Closure *luaF_newLclosure (lua_State *L, Proto *p);
LUAI_FUNC UpVal *luaF_newupval (lua_State *L);
LUAI_FUNC UpVal *luaF_findupval (lua_State *L, StkId level);
LUAI_FUNC void luaF_close (lua_State *L, StkId level);

133
depends/lua/include/lgc.h
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@ -1,5 +1,5 @@
/*
** $Id: lgc.h,v 2.15.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lgc.h,v 2.52 2011/10/03 17:54:25 roberto Exp $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@ -9,20 +9,51 @@
#include "lobject.h"
#include "lstate.h"
/*
** Collectable objects may have one of three colors: white, which
** means the object is not marked; gray, which means the
** object is marked, but its references may be not marked; and
** black, which means that the object and all its references are marked.
** The main invariant of the garbage collector, while marking objects,
** is that a black object can never point to a white one. Moreover,
** any gray object must be in a "gray list" (gray, grayagain, weak,
** allweak, ephemeron) so that it can be visited again before finishing
** the collection cycle. These lists have no meaning when the invariant
** is not being enforced (e.g., sweep phase).
*/
/*
** Possible states of the Garbage Collector
*/
#define GCSpause 0
#define GCSpropagate 1
#define GCSpropagate 0
#define GCSatomic 1
#define GCSsweepstring 2
#define GCSsweep 3
#define GCSfinalize 4
#define GCSsweepudata 3
#define GCSsweep 4
#define GCSpause 5
#define issweepphase(g) \
(GCSsweepstring <= (g)->gcstate && (g)->gcstate <= GCSsweep)
#define isgenerational(g) ((g)->gckind == KGC_GEN)
/*
** macro to tell when main invariant (white objects cannot point to black
** ones) must be kept. During a non-generational collection, the sweep
** phase may break the invariant, as objects turned white may point to
** still-black objects. The invariant is restored when sweep ends and
** all objects are white again. During a generational collection, the
** invariant must be kept all times.
*/
#define keepinvariant(g) (isgenerational(g) || g->gcstate <= GCSatomic)
/*
** some userful bit tricks
** some useful bit tricks
*/
#define resetbits(x,m) ((x) &= cast(lu_byte, ~(m)))
#define setbits(x,m) ((x) |= (m))
@ -32,42 +63,35 @@
#define l_setbit(x,b) setbits(x, bitmask(b))
#define resetbit(x,b) resetbits(x, bitmask(b))
#define testbit(x,b) testbits(x, bitmask(b))
#define set2bits(x,b1,b2) setbits(x, (bit2mask(b1, b2)))
#define reset2bits(x,b1,b2) resetbits(x, (bit2mask(b1, b2)))
#define test2bits(x,b1,b2) testbits(x, (bit2mask(b1, b2)))
/* Layout for bit use in `marked' field: */
#define WHITE0BIT 0 /* object is white (type 0) */
#define WHITE1BIT 1 /* object is white (type 1) */
#define BLACKBIT 2 /* object is black */
#define FINALIZEDBIT 3 /* object has been separated for finalization */
#define SEPARATED 4 /* object is in 'finobj' list or in 'tobefnz' */
#define FIXEDBIT 5 /* object is fixed (should not be collected) */
#define OLDBIT 6 /* object is old (only in generational mode) */
/* bit 7 is currently used by tests (luaL_checkmemory) */
/*
** Layout for bit use in `marked' field:
** bit 0 - object is white (type 0)
** bit 1 - object is white (type 1)
** bit 2 - object is black
** bit 3 - for userdata: has been finalized
** bit 3 - for tables: has weak keys
** bit 4 - for tables: has weak values
** bit 5 - object is fixed (should not be collected)
** bit 6 - object is "super" fixed (only the main thread)
*/
#define WHITE0BIT 0
#define WHITE1BIT 1
#define BLACKBIT 2
#define FINALIZEDBIT 3
#define KEYWEAKBIT 3
#define VALUEWEAKBIT 4
#define FIXEDBIT 5
#define SFIXEDBIT 6
#define WHITEBITS bit2mask(WHITE0BIT, WHITE1BIT)
#define iswhite(x) test2bits((x)->gch.marked, WHITE0BIT, WHITE1BIT)
#define iswhite(x) testbits((x)->gch.marked, WHITEBITS)
#define isblack(x) testbit((x)->gch.marked, BLACKBIT)
#define isgray(x) (!isblack(x) && !iswhite(x))
#define isgray(x) /* neither white nor black */ \
(!testbits((x)->gch.marked, WHITEBITS | bitmask(BLACKBIT)))
#define isold(x) testbit((x)->gch.marked, OLDBIT)
/* MOVE OLD rule: whenever an object is moved to the beginning of
a GC list, its old bit must be cleared */
#define resetoldbit(o) resetbit((o)->gch.marked, OLDBIT)
#define otherwhite(g) (g->currentwhite ^ WHITEBITS)
#define isdead(g,v) ((v)->gch.marked & otherwhite(g) & WHITEBITS)
#define isdeadm(ow,m) (!(((m) ^ WHITEBITS) & (ow)))
#define isdead(g,v) isdeadm(otherwhite(g), (v)->gch.marked)
#define changewhite(x) ((x)->gch.marked ^= WHITEBITS)
#define gray2black(x) l_setbit((x)->gch.marked, BLACKBIT)
@ -77,34 +101,39 @@
#define luaC_white(g) cast(lu_byte, (g)->currentwhite & WHITEBITS)
#define luaC_checkGC(L) { \
condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1)); \
if (G(L)->totalbytes >= G(L)->GCthreshold) \
luaC_step(L); }
#define luaC_condGC(L,c) \
{if (G(L)->GCdebt > 0) {c;}; condchangemem(L);}
#define luaC_checkGC(L) luaC_condGC(L, luaC_step(L);)
#define luaC_barrier(L,p,v) { if (valiswhite(v) && isblack(obj2gco(p))) \
luaC_barrierf(L,obj2gco(p),gcvalue(v)); }
luaC_barrier_(L,obj2gco(p),gcvalue(v)); }
#define luaC_barriert(L,t,v) { if (valiswhite(v) && isblack(obj2gco(t))) \
luaC_barrierback(L,t); }
#define luaC_barrierback(L,p,v) { if (valiswhite(v) && isblack(obj2gco(p))) \
luaC_barrierback_(L,p); }
#define luaC_objbarrier(L,p,o) \
{ if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) \
luaC_barrierf(L,obj2gco(p),obj2gco(o)); }
luaC_barrier_(L,obj2gco(p),obj2gco(o)); }
#define luaC_objbarriert(L,t,o) \
{ if (iswhite(obj2gco(o)) && isblack(obj2gco(t))) luaC_barrierback(L,t); }
#define luaC_objbarrierback(L,p,o) \
{ if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) luaC_barrierback_(L,p); }
LUAI_FUNC size_t luaC_separateudata (lua_State *L, int all);
LUAI_FUNC void luaC_callGCTM (lua_State *L);
LUAI_FUNC void luaC_freeall (lua_State *L);
LUAI_FUNC void luaC_step (lua_State *L);
LUAI_FUNC void luaC_fullgc (lua_State *L);
LUAI_FUNC void luaC_link (lua_State *L, GCObject *o, lu_byte tt);
LUAI_FUNC void luaC_linkupval (lua_State *L, UpVal *uv);
LUAI_FUNC void luaC_barrierf (lua_State *L, GCObject *o, GCObject *v);
LUAI_FUNC void luaC_barrierback (lua_State *L, Table *t);
#define luaC_barrierproto(L,p,c) \
{ if (isblack(obj2gco(p))) luaC_barrierproto_(L,p,c); }
LUAI_FUNC void luaC_freeallobjects (lua_State *L);
LUAI_FUNC void luaC_step (lua_State *L);
LUAI_FUNC void luaC_forcestep (lua_State *L);
LUAI_FUNC void luaC_runtilstate (lua_State *L, int statesmask);
LUAI_FUNC void luaC_fullgc (lua_State *L, int isemergency);
LUAI_FUNC GCObject *luaC_newobj (lua_State *L, int tt, size_t sz,
GCObject **list, int offset);
LUAI_FUNC void luaC_barrier_ (lua_State *L, GCObject *o, GCObject *v);
LUAI_FUNC void luaC_barrierback_ (lua_State *L, GCObject *o);
LUAI_FUNC void luaC_barrierproto_ (lua_State *L, Proto *p, Closure *c);
LUAI_FUNC void luaC_checkfinalizer (lua_State *L, GCObject *o, Table *mt);
LUAI_FUNC void luaC_checkupvalcolor (global_State *g, UpVal *uv);
LUAI_FUNC void luaC_changemode (lua_State *L, int mode);
#endif

27
depends/lua/include/llex.h
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: llex.h,v 1.58.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: llex.h,v 1.72 2011/11/30 12:43:51 roberto Exp $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
@ -13,8 +13,6 @@
#define FIRST_RESERVED 257
/* maximum length of a reserved word */
#define TOKEN_LEN (sizeof("function")/sizeof(char))
/*
@ -25,21 +23,17 @@ enum RESERVED {
/* terminal symbols denoted by reserved words */
TK_AND = FIRST_RESERVED, TK_BREAK,
TK_DO, TK_ELSE, TK_ELSEIF, TK_END, TK_FALSE, TK_FOR, TK_FUNCTION,
TK_IF, TK_IN, TK_LOCAL, TK_NIL, TK_NOT, TK_OR, TK_REPEAT,
TK_GOTO, TK_IF, TK_IN, TK_LOCAL, TK_NIL, TK_NOT, TK_OR, TK_REPEAT,
TK_RETURN, TK_THEN, TK_TRUE, TK_UNTIL, TK_WHILE,
/* other terminal symbols */
TK_CONCAT, TK_DOTS, TK_EQ, TK_GE, TK_LE, TK_NE, TK_NUMBER,
TK_NAME, TK_STRING, TK_EOS
TK_CONCAT, TK_DOTS, TK_EQ, TK_GE, TK_LE, TK_NE, TK_DBCOLON, TK_EOS,
TK_NUMBER, TK_NAME, TK_STRING
};
/* number of reserved words */
#define NUM_RESERVED (cast(int, TK_WHILE-FIRST_RESERVED+1))
/* array with token `names' */
LUAI_DATA const char *const luaX_tokens [];
typedef union {
lua_Number r;
TString *ts;
@ -52,29 +46,32 @@ typedef struct Token {
} Token;
/* state of the lexer plus state of the parser when shared by all
functions */
typedef struct LexState {
int current; /* current character (charint) */
int linenumber; /* input line counter */
int lastline; /* line of last token `consumed' */
Token t; /* current token */
Token lookahead; /* look ahead token */
struct FuncState *fs; /* `FuncState' is private to the parser */
struct FuncState *fs; /* current function (parser) */
struct lua_State *L;
ZIO *z; /* input stream */
Mbuffer *buff; /* buffer for tokens */
struct Dyndata *dyd; /* dynamic structures used by the parser */
TString *source; /* current source name */
TString *envn; /* environment variable name */
char decpoint; /* locale decimal point */
} LexState;
LUAI_FUNC void luaX_init (lua_State *L);
LUAI_FUNC void luaX_setinput (lua_State *L, LexState *ls, ZIO *z,
TString *source);
TString *source, int firstchar);
LUAI_FUNC TString *luaX_newstring (LexState *ls, const char *str, size_t l);
LUAI_FUNC void luaX_next (LexState *ls);
LUAI_FUNC void luaX_lookahead (LexState *ls);
LUAI_FUNC void luaX_lexerror (LexState *ls, const char *msg, int token);
LUAI_FUNC void luaX_syntaxerror (LexState *ls, const char *s);
LUAI_FUNC int luaX_lookahead (LexState *ls);
LUAI_FUNC l_noret luaX_syntaxerror (LexState *ls, const char *s);
LUAI_FUNC const char *luaX_token2str (LexState *ls, int token);

210
depends/lua/include/llimits.h
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: llimits.h,v 1.69.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: llimits.h,v 1.95 2011/12/06 16:58:36 roberto Exp $
** Limits, basic types, and some other `installation-dependent' definitions
** See Copyright Notice in lua.h
*/
@ -15,7 +15,7 @@
#include "lua.h"
typedef LUAI_UINT32 lu_int32;
typedef unsigned LUA_INT32 lu_int32;
typedef LUAI_UMEM lu_mem;
@ -44,6 +44,10 @@ typedef unsigned char lu_byte;
/* type to ensure maximum alignment */
#if !defined(LUAI_USER_ALIGNMENT_T)
#define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; }
#endif
typedef LUAI_USER_ALIGNMENT_T L_Umaxalign;
@ -52,35 +56,74 @@ typedef LUAI_UACNUMBER l_uacNumber;
/* internal assertions for in-house debugging */
#ifdef lua_assert
#if defined(lua_assert)
#define check_exp(c,e) (lua_assert(c), (e))
#define api_check(l,e) lua_assert(e)
/* to avoid problems with conditions too long */
#define lua_longassert(c) { if (!(c)) lua_assert(0); }
#else
#define lua_assert(c) ((void)0)
#define check_exp(c,e) (e)
#define api_check luai_apicheck
#define lua_longassert(c) ((void)0)
#endif
/*
** assertion for checking API calls
*/
#if !defined(luai_apicheck)
#if defined(LUA_USE_APICHECK)
#include <assert.h>
#define luai_apicheck(L,e) assert(e)
#else
#define luai_apicheck(L,e) lua_assert(e)
#endif
#endif
#define api_check(l,e,msg) luai_apicheck(l,(e) && msg)
#ifndef UNUSED
#if !defined(UNUSED)
#define UNUSED(x) ((void)(x)) /* to avoid warnings */
#endif
#ifndef cast
#define cast(t, exp) ((t)(exp))
#endif
#define cast_byte(i) cast(lu_byte, (i))
#define cast_num(i) cast(lua_Number, (i))
#define cast_int(i) cast(int, (i))
#define cast_uchar(i) cast(unsigned char, (i))
/*
** non-return type
*/
#if defined(__GNUC__)
#define l_noret void __attribute__((noreturn))
#elif defined(_MSC_VER)
#define l_noret void __declspec(noreturn)
#else
#define l_noret void
#endif
/*
** maximum depth for nested C calls and syntactical nested non-terminals
** in a program. (Value must fit in an unsigned short int.)
*/
#if !defined(LUAI_MAXCCALLS)
#define LUAI_MAXCCALLS 200
#endif
/*
** maximum number of upvalues in a closure (both C and Lua). (Value
** must fit in an unsigned char.)
*/
#define MAXUPVAL UCHAR_MAX
/*
** type for virtual-machine instructions
** must be an unsigned with (at least) 4 bytes (see details in lopcodes.h)
@ -95,34 +138,165 @@ typedef lu_int32 Instruction;
/* minimum size for the string table (must be power of 2) */
#ifndef MINSTRTABSIZE
#if !defined(MINSTRTABSIZE)
#define MINSTRTABSIZE 32
#endif
/* minimum size for string buffer */
#ifndef LUA_MINBUFFER
#if !defined(LUA_MINBUFFER)
#define LUA_MINBUFFER 32
#endif
#ifndef lua_lock
#if !defined(lua_lock)
#define lua_lock(L) ((void) 0)
#define lua_unlock(L) ((void) 0)
#endif
#ifndef luai_threadyield
#if !defined(luai_threadyield)
#define luai_threadyield(L) {lua_unlock(L); lua_lock(L);}
#endif
/*
** these macros allow user-specific actions on threads when you defined
** LUAI_EXTRASPACE and need to do something extra when a thread is
** created/deleted/resumed/yielded.
*/
#if !defined(luai_userstateopen)
#define luai_userstateopen(L) ((void)L)
#endif
#if !defined(luai_userstateclose)
#define luai_userstateclose(L) ((void)L)
#endif
#if !defined(luai_userstatethread)
#define luai_userstatethread(L,L1) ((void)L)
#endif
#if !defined(luai_userstatefree)
#define luai_userstatefree(L,L1) ((void)L)
#endif
#if !defined(luai_userstateresume)
#define luai_userstateresume(L,n) ((void)L)
#endif
#if !defined(luai_userstateyield)
#define luai_userstateyield(L,n) ((void)L)
#endif
/*
** lua_number2int is a macro to convert lua_Number to int.
** lua_number2integer is a macro to convert lua_Number to lua_Integer.
** lua_number2unsigned is a macro to convert a lua_Number to a lua_Unsigned.
** lua_unsigned2number is a macro to convert a lua_Unsigned to a lua_Number.
** luai_hashnum is a macro to hash a lua_Number value into an integer.
** The hash must be deterministic and give reasonable values for
** both small and large values (outside the range of integers).
*/
#if defined(MS_ASMTRICK) /* { */
/* trick with Microsoft assembler for X86 */
#define lua_number2int(i,n) __asm {__asm fld n __asm fistp i}
#define lua_number2integer(i,n) lua_number2int(i, n)
#define lua_number2unsigned(i,n) \
{__int64 l; __asm {__asm fld n __asm fistp l} i = (unsigned int)l;}
#elif defined(LUA_IEEE754TRICK) /* }{ */
/* the next trick should work on any machine using IEEE754 with
a 32-bit integer type */
union luai_Cast { double l_d; LUA_INT32 l_p[2]; };
#if !defined(LUA_IEEEENDIAN) /* { */
#define LUAI_EXTRAIEEE \
static const union luai_Cast ieeeendian = {-(33.0 + 6755399441055744.0)};
#define LUA_IEEEENDIAN (ieeeendian.l_p[1] == 33)
#else
#define LUAI_EXTRAIEEE /* empty */
#endif /* } */
#define lua_number2int32(i,n,t) \
{ LUAI_EXTRAIEEE \
volatile union luai_Cast u; u.l_d = (n) + 6755399441055744.0; \
(i) = (t)u.l_p[LUA_IEEEENDIAN]; }
#define luai_hashnum(i,n) \
{ volatile union luai_Cast u; u.l_d = (n) + 1.0; /* avoid -0 */ \
(i) = u.l_p[0]; (i) += u.l_p[1]; } /* add double bits for his hash */
#define lua_number2int(i,n) lua_number2int32(i, n, int)
#define lua_number2integer(i,n) lua_number2int32(i, n, lua_Integer)
#define lua_number2unsigned(i,n) lua_number2int32(i, n, lua_Unsigned)
#endif /* } */
/* the following definitions always work, but may be slow */
#if !defined(lua_number2int)
#define lua_number2int(i,n) ((i)=(int)(n))
#endif
#if !defined(lua_number2integer)
#define lua_number2integer(i,n) ((i)=(lua_Integer)(n))
#endif
#if !defined(lua_number2unsigned) /* { */
/* the following definition assures proper modulo behavior */
#if defined(LUA_NUMBER_DOUBLE)
#include <math.h>
#define SUPUNSIGNED ((lua_Number)(~(lua_Unsigned)0) + 1)
#define lua_number2unsigned(i,n) \
((i)=(lua_Unsigned)((n) - floor((n)/SUPUNSIGNED)*SUPUNSIGNED))
#else
#define lua_number2unsigned(i,n) ((i)=(lua_Unsigned)(n))
#endif
#endif /* } */
#if !defined(lua_unsigned2number)
/* on several machines, coercion from unsigned to double is slow,
so it may be worth to avoid */
#define lua_unsigned2number(u) \
(((u) <= (lua_Unsigned)INT_MAX) ? (lua_Number)(int)(u) : (lua_Number)(u))
#endif
#if defined(ltable_c) && !defined(luai_hashnum)
#include <float.h>
#include <math.h>
#define luai_hashnum(i,n) { int e; \
n = frexp(n, &e) * (lua_Number)(INT_MAX - DBL_MAX_EXP); \
lua_number2int(i, n); i += e; }
#endif
/*
** macro to control inclusion of some hard tests on stack reallocation
*/
#ifndef HARDSTACKTESTS
#define condhardstacktests(x) ((void)0)
#if !defined(HARDSTACKTESTS)
#define condmovestack(L) ((void)0)
#else
/* realloc stack keeping its size */
#define condmovestack(L) luaD_reallocstack((L), (L)->stacksize)
#endif
#if !defined(HARDMEMTESTS)
#define condchangemem(L) condmovestack(L)
#else
#define condhardstacktests(x) x
#define condchangemem(L) \
((void)(!(G(L)->gcrunning) || (luaC_fullgc(L, 0), 1)))
#endif
#endif

21
depends/lua/include/lmem.h
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lmem.h,v 1.31.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lmem.h,v 1.38 2011/12/02 13:26:54 roberto Exp $
** Interface to Memory Manager
** See Copyright Notice in lua.h
*/
@ -13,23 +13,23 @@
#include "llimits.h"
#include "lua.h"
#define MEMERRMSG "not enough memory"
#define luaM_reallocv(L,b,on,n,e) \
((cast(size_t, (n)+1) <= MAX_SIZET/(e)) ? /* +1 to avoid warnings */ \
luaM_realloc_(L, (b), (on)*(e), (n)*(e)) : \
luaM_toobig(L))
((cast(size_t, (n)+1) > MAX_SIZET/(e)) ? /* +1 to avoid warnings */ \
(luaM_toobig(L), (void *)0) : \
luaM_realloc_(L, (b), (on)*(e), (n)*(e)))
#define luaM_freemem(L, b, s) luaM_realloc_(L, (b), (s), 0)
#define luaM_free(L, b) luaM_realloc_(L, (b), sizeof(*(b)), 0)
#define luaM_freearray(L, b, n, t) luaM_reallocv(L, (b), n, 0, sizeof(t))
#define luaM_freearray(L, b, n) luaM_reallocv(L, (b), n, 0, sizeof((b)[0]))
#define luaM_malloc(L,t) luaM_realloc_(L, NULL, 0, (t))
#define luaM_malloc(L,s) luaM_realloc_(L, NULL, 0, (s))
#define luaM_new(L,t) cast(t *, luaM_malloc(L, sizeof(t)))
#define luaM_newvector(L,n,t) \
cast(t *, luaM_reallocv(L, NULL, 0, n, sizeof(t)))
#define luaM_newobject(L,tag,s) luaM_realloc_(L, NULL, tag, (s))
#define luaM_growvector(L,v,nelems,size,t,limit,e) \
if ((nelems)+1 > (size)) \
((v)=cast(t *, luaM_growaux_(L,v,&(size),sizeof(t),limit,e)))
@ -37,13 +37,14 @@
#define luaM_reallocvector(L, v,oldn,n,t) \
((v)=cast(t *, luaM_reallocv(L, v, oldn, n, sizeof(t))))
LUAI_FUNC l_noret luaM_toobig (lua_State *L);
/* not to be called directly */
LUAI_FUNC void *luaM_realloc_ (lua_State *L, void *block, size_t oldsize,
size_t size);
LUAI_FUNC void *luaM_toobig (lua_State *L);
LUAI_FUNC void *luaM_growaux_ (lua_State *L, void *block, int *size,
size_t size_elem, int limit,
const char *errormsg);
const char *what);
#endif

442
depends/lua/include/lobject.h
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lobject.h,v 2.20.1.2 2008/08/06 13:29:48 roberto Exp $
** $Id: lobject.h,v 2.64 2011/10/31 17:48:22 roberto Exp $
** Type definitions for Lua objects
** See Copyright Notice in lua.h
*/
@ -16,18 +16,44 @@
#include "lua.h"
/* tags for values visible from Lua */
#define LAST_TAG LUA_TTHREAD
/*
** Extra tags for non-values
*/
#define LUA_TPROTO LUA_NUMTAGS
#define LUA_TUPVAL (LUA_NUMTAGS+1)
#define LUA_TDEADKEY (LUA_NUMTAGS+2)
#define NUM_TAGS (LAST_TAG+1)
/*
** number of all possible tags (including LUA_TNONE but excluding DEADKEY)
*/
#define LUA_TOTALTAGS (LUA_TUPVAL+2)
/*
** Extra tags for non-values
** tags for Tagged Values have the following use of bits:
** bits 0-3: actual tag (a LUA_T* value)
** bits 4-5: variant bits
** bit 6: whether value is collectable
*/
#define LUA_TPROTO (LAST_TAG+1)
#define LUA_TUPVAL (LAST_TAG+2)
#define LUA_TDEADKEY (LAST_TAG+3)
/*
** LUA_TFUNCTION variants:
** 0 - Lua function
** 1 - light C function
** 2 - regular C function (closure)
*/
/* Variant tags for functions */
#define LUA_TLCL (LUA_TFUNCTION | (0 << 4)) /* Lua closure */
#define LUA_TLCF (LUA_TFUNCTION | (1 << 4)) /* light C function */
#define LUA_TCCL (LUA_TFUNCTION | (2 << 4)) /* C closure */
/* Bit mark for collectable types */
#define BIT_ISCOLLECTABLE (1 << 6)
/* mark a tag as collectable */
#define ctb(t) ((t) | BIT_ISCOLLECTABLE)
/*
@ -52,120 +78,166 @@ typedef struct GCheader {
/*
** Union of all Lua values
*/
typedef union {
GCObject *gc;
void *p;
lua_Number n;
int b;
} Value;
typedef union Value Value;
#define numfield lua_Number n; /* numbers */
/*
** Tagged Values
** Tagged Values. This is the basic representation of values in Lua,
** an actual value plus a tag with its type.
*/
#define TValuefields Value value; int tt
#define TValuefields Value value_; int tt_
typedef struct lua_TValue TValue;
/* macro defining a nil value */
#define NILCONSTANT {NULL}, LUA_TNIL
#define val_(o) ((o)->value_)
#define num_(o) (val_(o).n)
typedef struct lua_TValue {
TValuefields;
} TValue;
/* raw type tag of a TValue */
#define rttype(o) ((o)->tt_)
/* type tag of a TValue (bits 0-3 for tags + variant bits 4-5) */
#define ttype(o) (rttype(o) & 0x3F)
/* type tag of a TValue with no variants (bits 0-3) */
#define ttypenv(o) (rttype(o) & 0x0F)
/* Macros to test type */
#define ttisnil(o) (ttype(o) == LUA_TNIL)
#define ttisnumber(o) (ttype(o) == LUA_TNUMBER)
#define ttisstring(o) (ttype(o) == LUA_TSTRING)
#define ttistable(o) (ttype(o) == LUA_TTABLE)
#define ttisfunction(o) (ttype(o) == LUA_TFUNCTION)
#define ttisboolean(o) (ttype(o) == LUA_TBOOLEAN)
#define ttisuserdata(o) (ttype(o) == LUA_TUSERDATA)
#define ttisthread(o) (ttype(o) == LUA_TTHREAD)
#define ttislightuserdata(o) (ttype(o) == LUA_TLIGHTUSERDATA)
#define checktag(o,t) (rttype(o) == (t))
#define ttisnumber(o) checktag((o), LUA_TNUMBER)
#define ttisnil(o) checktag((o), LUA_TNIL)
#define ttisboolean(o) checktag((o), LUA_TBOOLEAN)
#define ttislightuserdata(o) checktag((o), LUA_TLIGHTUSERDATA)
#define ttisstring(o) checktag((o), ctb(LUA_TSTRING))
#define ttistable(o) checktag((o), ctb(LUA_TTABLE))
#define ttisfunction(o) (ttypenv(o) == LUA_TFUNCTION)
#define ttisclosure(o) ((rttype(o) & 0x1F) == LUA_TFUNCTION)
#define ttisCclosure(o) checktag((o), ctb(LUA_TCCL))
#define ttisLclosure(o) checktag((o), ctb(LUA_TLCL))
#define ttislcf(o) checktag((o), LUA_TLCF)
#define ttisuserdata(o) checktag((o), ctb(LUA_TUSERDATA))
#define ttisthread(o) checktag((o), ctb(LUA_TTHREAD))
#define ttisdeadkey(o) checktag((o), LUA_TDEADKEY)
#define ttisequal(o1,o2) (rttype(o1) == rttype(o2))
/* Macros to access values */
#define ttype(o) ((o)->tt)
#define gcvalue(o) check_exp(iscollectable(o), (o)->value.gc)
#define pvalue(o) check_exp(ttislightuserdata(o), (o)->value.p)
#define nvalue(o) check_exp(ttisnumber(o), (o)->value.n)
#define rawtsvalue(o) check_exp(ttisstring(o), &(o)->value.gc->ts)
#define nvalue(o) check_exp(ttisnumber(o), num_(o))
#define gcvalue(o) check_exp(iscollectable(o), val_(o).gc)
#define pvalue(o) check_exp(ttislightuserdata(o), val_(o).p)
#define rawtsvalue(o) check_exp(ttisstring(o), &val_(o).gc->ts)
#define tsvalue(o) (&rawtsvalue(o)->tsv)
#define rawuvalue(o) check_exp(ttisuserdata(o), &(o)->value.gc->u)
#define rawuvalue(o) check_exp(ttisuserdata(o), &val_(o).gc->u)
#define uvalue(o) (&rawuvalue(o)->uv)
#define clvalue(o) check_exp(ttisfunction(o), &(o)->value.gc->cl)
#define hvalue(o) check_exp(ttistable(o), &(o)->value.gc->h)
#define bvalue(o) check_exp(ttisboolean(o), (o)->value.b)
#define thvalue(o) check_exp(ttisthread(o), &(o)->value.gc->th)
#define clvalue(o) check_exp(ttisclosure(o), &val_(o).gc->cl)
#define clLvalue(o) check_exp(ttisLclosure(o), &val_(o).gc->cl.l)
#define clCvalue(o) check_exp(ttisCclosure(o), &val_(o).gc->cl.c)
#define fvalue(o) check_exp(ttislcf(o), val_(o).f)
#define hvalue(o) check_exp(ttistable(o), &val_(o).gc->h)
#define bvalue(o) check_exp(ttisboolean(o), val_(o).b)
#define thvalue(o) check_exp(ttisthread(o), &val_(o).gc->th)
/* a dead value may get the 'gc' field, but cannot access its contents */
#define deadvalue(o) check_exp(ttisdeadkey(o), cast(void *, val_(o).gc))
#define l_isfalse(o) (ttisnil(o) || (ttisboolean(o) && bvalue(o) == 0))
/*
** for internal debug only
*/
#define checkconsistency(obj) \
lua_assert(!iscollectable(obj) || (ttype(obj) == (obj)->value.gc->gch.tt))
#define iscollectable(o) (rttype(o) & BIT_ISCOLLECTABLE)
/* Macros for internal tests */
#define righttt(obj) (ttypenv(obj) == gcvalue(obj)->gch.tt)
#define checkliveness(g,obj) \
lua_assert(!iscollectable(obj) || \
((ttype(obj) == (obj)->value.gc->gch.tt) && !isdead(g, (obj)->value.gc)))
lua_longassert(!iscollectable(obj) || \
(righttt(obj) && !isdead(g,gcvalue(obj))))
/* Macros to set values */
#define setnilvalue(obj) ((obj)->tt=LUA_TNIL)
#define settt_(o,t) ((o)->tt_=(t))
#define setnvalue(obj,x) \
{ TValue *i_o=(obj); i_o->value.n=(x); i_o->tt=LUA_TNUMBER; }
{ TValue *io=(obj); num_(io)=(x); settt_(io, LUA_TNUMBER); }
#define changenvalue(o,x) check_exp(ttisnumber(o), num_(o)=(x))
#define setnilvalue(obj) settt_(obj, LUA_TNIL)
#define setfvalue(obj,x) \
{ TValue *io=(obj); val_(io).f=(x); settt_(io, LUA_TLCF); }
#define setpvalue(obj,x) \
{ TValue *i_o=(obj); i_o->value.p=(x); i_o->tt=LUA_TLIGHTUSERDATA; }
{ TValue *io=(obj); val_(io).p=(x); settt_(io, LUA_TLIGHTUSERDATA); }
#define setbvalue(obj,x) \
{ TValue *i_o=(obj); i_o->value.b=(x); i_o->tt=LUA_TBOOLEAN; }
{ TValue *io=(obj); val_(io).b=(x); settt_(io, LUA_TBOOLEAN); }
#define setgcovalue(L,obj,x) \
{ TValue *io=(obj); GCObject *i_g=(x); \
val_(io).gc=i_g; settt_(io, ctb(gch(i_g)->tt)); }
#define setsvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TSTRING; \
checkliveness(G(L),i_o); }
{ TValue *io=(obj); \
val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TSTRING)); \
checkliveness(G(L),io); }
#define setuvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TUSERDATA; \
checkliveness(G(L),i_o); }
{ TValue *io=(obj); \
val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TUSERDATA)); \
checkliveness(G(L),io); }
#define setthvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TTHREAD; \
checkliveness(G(L),i_o); }
{ TValue *io=(obj); \
val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TTHREAD)); \
checkliveness(G(L),io); }
#define setclvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TFUNCTION; \
checkliveness(G(L),i_o); }
#define setclLvalue(L,obj,x) \
{ TValue *io=(obj); \
val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TLCL)); \
checkliveness(G(L),io); }
#define setclCvalue(L,obj,x) \
{ TValue *io=(obj); \
val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TCCL)); \
checkliveness(G(L),io); }
#define sethvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TTABLE; \
checkliveness(G(L),i_o); }
{ TValue *io=(obj); \
val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TTABLE)); \
checkliveness(G(L),io); }
#define setptvalue(L,obj,x) \
{ TValue *i_o=(obj); \
i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TPROTO; \
checkliveness(G(L),i_o); }
{ TValue *io=(obj); \
val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TPROTO)); \
checkliveness(G(L),io); }
#define setdeadvalue(obj) settt_(obj, LUA_TDEADKEY)
#define setobj(L,obj1,obj2) \
{ const TValue *o2=(obj2); TValue *o1=(obj1); \
o1->value = o2->value; o1->tt=o2->tt; \
checkliveness(G(L),o1); }
{ const TValue *io2=(obj2); TValue *io1=(obj1); \
io1->value_ = io2->value_; io1->tt_ = io2->tt_; \
checkliveness(G(L),io1); }
/*
** different types of sets, according to destination
** different types of assignments, according to destination
*/
/* from stack to (same) stack */
@ -183,18 +255,147 @@ typedef struct lua_TValue {
#define setobj2n setobj
#define setsvalue2n setsvalue
#define setttype(obj, tt) (ttype(obj) = (tt))
#define iscollectable(o) (ttype(o) >= LUA_TSTRING)
/*
** {======================================================
** NaN Trick
** =======================================================
*/
#if defined(LUA_NANTRICK) \
|| defined(LUA_NANTRICK_LE) \
|| defined(LUA_NANTRICK_BE)
/*
** numbers are represented in the 'd_' field. All other values have the
** value (NNMARK | tag) in 'tt__'. A number with such pattern would be
** a "signaled NaN", which is never generated by regular operations by
** the CPU (nor by 'strtod')
*/
#if !defined(NNMARK)
#define NNMARK 0x7FF7A500
#define NNMASK 0x7FFFFF00
#endif
#undef TValuefields
#undef NILCONSTANT
#if defined(LUA_NANTRICK_LE)
/* little endian */
#define TValuefields \
union { struct { Value v__; int tt__; } i; double d__; } u
#define NILCONSTANT {{{NULL}, tag2tt(LUA_TNIL)}}
/* field-access macros */
#define v_(o) ((o)->u.i.v__)
#define d_(o) ((o)->u.d__)
#define tt_(o) ((o)->u.i.tt__)
#elif defined(LUA_NANTRICK_BE)
/* big endian */
#define TValuefields \
union { struct { int tt__; Value v__; } i; double d__; } u
#define NILCONSTANT {{tag2tt(LUA_TNIL), {NULL}}}
/* field-access macros */
#define v_(o) ((o)->u.i.v__)
#define d_(o) ((o)->u.d__)
#define tt_(o) ((o)->u.i.tt__)
#elif !defined(TValuefields)
#error option 'LUA_NANTRICK' needs declaration for 'TValuefields'
#endif
/* correspondence with standard representation */
#undef val_
#define val_(o) v_(o)
#undef num_
#define num_(o) d_(o)
#undef numfield
#define numfield /* no such field; numbers are the entire struct */
/* basic check to distinguish numbers from non-numbers */
#undef ttisnumber
#define ttisnumber(o) ((tt_(o) & NNMASK) != NNMARK)
#define tag2tt(t) (NNMARK | (t))
#undef rttype
#define rttype(o) (ttisnumber(o) ? LUA_TNUMBER : tt_(o) & 0xff)
#undef settt_
#define settt_(o,t) (tt_(o) = tag2tt(t))
#undef setnvalue
#define setnvalue(obj,x) \
{ TValue *io_=(obj); num_(io_)=(x); lua_assert(ttisnumber(io_)); }
#undef setobj
#define setobj(L,obj1,obj2) \
{ const TValue *o2_=(obj2); TValue *o1_=(obj1); \
o1_->u = o2_->u; \
checkliveness(G(L),o1_); }
/*
** these redefinitions are not mandatory, but these forms are more efficient
*/
#undef checktag
#define checktag(o,t) (tt_(o) == tag2tt(t))
#undef ttisequal
#define ttisequal(o1,o2) \
(ttisnumber(o1) ? ttisnumber(o2) : (tt_(o1) == tt_(o2)))
#define luai_checknum(L,o,c) { if (!ttisnumber(o)) c; }
#else
#define luai_checknum(L,o,c) { /* empty */ }
#endif
/* }====================================================== */
/*
** {======================================================
** types and prototypes
** =======================================================
*/
union Value {
GCObject *gc; /* collectable objects */
void *p; /* light userdata */
int b; /* booleans */
lua_CFunction f; /* light C functions */
numfield /* numbers */
};
struct lua_TValue {
TValuefields;
};
typedef TValue *StkId; /* index to stack elements */
/*
** String headers for string table
** Header for string value; string bytes follow the end of this structure
*/
typedef union TString {
L_Umaxalign dummy; /* ensures maximum alignment for strings */
@ -202,28 +403,53 @@ typedef union TString {
CommonHeader;
lu_byte reserved;
unsigned int hash;
size_t len;
size_t len; /* number of characters in string */
} tsv;
} TString;
/* get the actual string (array of bytes) from a TString */
#define getstr(ts) cast(const char *, (ts) + 1)
#define svalue(o) getstr(rawtsvalue(o))
/* get the actual string (array of bytes) from a Lua value */
#define svalue(o) getstr(rawtsvalue(o))
/*
** Header for userdata; memory area follows the end of this structure
*/
typedef union Udata {
L_Umaxalign dummy; /* ensures maximum alignment for `local' udata */
struct {
CommonHeader;
struct Table *metatable;
struct Table *env;
size_t len;
size_t len; /* number of bytes */
} uv;
} Udata;
/*
** Description of an upvalue for function prototypes
*/
typedef struct Upvaldesc {
TString *name; /* upvalue name (for debug information) */
lu_byte instack; /* whether it is in stack */
lu_byte idx; /* index of upvalue (in stack or in outer function's list) */
} Upvaldesc;
/*
** Description of a local variable for function prototypes
** (used for debug information)
*/
typedef struct LocVar {
TString *varname;
int startpc; /* first point where variable is active */
int endpc; /* first point where variable is dead */
} LocVar;
/*
** Function Prototypes
@ -233,11 +459,12 @@ typedef struct Proto {
TValue *k; /* constants used by the function */
Instruction *code;
struct Proto **p; /* functions defined inside the function */
int *lineinfo; /* map from opcodes to source lines */
struct LocVar *locvars; /* information about local variables */
TString **upvalues; /* upvalue names */
TString *source;
int sizeupvalues;
int *lineinfo; /* map from opcodes to source lines (debug information) */
LocVar *locvars; /* information about local variables (debug information) */
Upvaldesc *upvalues; /* upvalue information */
union Closure *cache; /* last created closure with this prototype */
TString *source; /* used for debug information */
int sizeupvalues; /* size of 'upvalues' */
int sizek; /* size of `k' */
int sizecode;
int sizelineinfo;
@ -246,31 +473,16 @@ typedef struct Proto {
int linedefined;
int lastlinedefined;
GCObject *gclist;
lu_byte nups; /* number of upvalues */
lu_byte numparams;
lu_byte numparams; /* number of fixed parameters */
lu_byte is_vararg;
lu_byte maxstacksize;
lu_byte maxstacksize; /* maximum stack used by this function */
} Proto;
/* masks for new-style vararg */
#define VARARG_HASARG 1
#define VARARG_ISVARARG 2
#define VARARG_NEEDSARG 4
typedef struct LocVar {
TString *varname;
int startpc; /* first point where variable is active */
int endpc; /* first point where variable is dead */
} LocVar;
/*
** Upvalues
** Lua Upvalues
*/
typedef struct UpVal {
CommonHeader;
TValue *v; /* points to stack or to its own value */
@ -289,20 +501,19 @@ typedef struct UpVal {
*/
#define ClosureHeader \
CommonHeader; lu_byte isC; lu_byte nupvalues; GCObject *gclist; \
struct Table *env
CommonHeader; lu_byte isC; lu_byte nupvalues; GCObject *gclist
typedef struct CClosure {
ClosureHeader;
lua_CFunction f;
TValue upvalue[1];
TValue upvalue[1]; /* list of upvalues */
} CClosure;
typedef struct LClosure {
ClosureHeader;
struct Proto *p;
UpVal *upvals[1];
UpVal *upvals[1]; /* list of upvalues */
} LClosure;
@ -312,8 +523,9 @@ typedef union Closure {
} Closure;
#define iscfunction(o) (ttype(o) == LUA_TFUNCTION && clvalue(o)->c.isC)
#define isLfunction(o) (ttype(o) == LUA_TFUNCTION && !clvalue(o)->c.isC)
#define isLfunction(o) ttisLclosure(o)
#define getproto(o) (clLvalue(o)->p)
/*
@ -360,17 +572,21 @@ typedef struct Table {
#define sizenode(t) (twoto((t)->lsizenode))
/*
** (address of) a fixed nil value
*/
#define luaO_nilobject (&luaO_nilobject_)
LUAI_DATA const TValue luaO_nilobject_;
#define ceillog2(x) (luaO_log2((x)-1) + 1)
LUAI_DDEC const TValue luaO_nilobject_;
LUAI_FUNC int luaO_log2 (unsigned int x);
LUAI_FUNC int luaO_int2fb (unsigned int x);
LUAI_FUNC int luaO_fb2int (int x);
LUAI_FUNC int luaO_rawequalObj (const TValue *t1, const TValue *t2);
LUAI_FUNC int luaO_str2d (const char *s, lua_Number *result);
LUAI_FUNC int luaO_ceillog2 (unsigned int x);
LUAI_FUNC lua_Number luaO_arith (int op, lua_Number v1, lua_Number v2);
LUAI_FUNC int luaO_str2d (const char *s, size_t len, lua_Number *result);
LUAI_FUNC int luaO_hexavalue (int c);
LUAI_FUNC const char *luaO_pushvfstring (lua_State *L, const char *fmt,
va_list argp);
LUAI_FUNC const char *luaO_pushfstring (lua_State *L, const char *fmt, ...);

92
depends/lua/include/lopcodes.h
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lopcodes.h,v 1.125.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lopcodes.h,v 1.142 2011/07/15 12:50:29 roberto Exp $
** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h
*/
@ -17,6 +17,7 @@
`A' : 8 bits
`B' : 9 bits
`C' : 9 bits
'Ax' : 26 bits ('A', 'B', and 'C' together)
`Bx' : 18 bits (`B' and `C' together)
`sBx' : signed Bx
@ -28,7 +29,7 @@
===========================================================================*/
enum OpMode {iABC, iABx, iAsBx}; /* basic instruction format */
enum OpMode {iABC, iABx, iAsBx, iAx}; /* basic instruction format */
/*
@ -38,6 +39,7 @@ enum OpMode {iABC, iABx, iAsBx}; /* basic instruction format */
#define SIZE_B 9
#define SIZE_Bx (SIZE_C + SIZE_B)
#define SIZE_A 8
#define SIZE_Ax (SIZE_C + SIZE_B + SIZE_A)
#define SIZE_OP 6
@ -46,6 +48,7 @@ enum OpMode {iABC, iABx, iAsBx}; /* basic instruction format */
#define POS_C (POS_A + SIZE_A)
#define POS_B (POS_C + SIZE_C)
#define POS_Bx POS_C
#define POS_Ax POS_A
/*
@ -61,6 +64,12 @@ enum OpMode {iABC, iABx, iAsBx}; /* basic instruction format */
#define MAXARG_sBx MAX_INT
#endif
#if SIZE_Ax < LUAI_BITSINT-1
#define MAXARG_Ax ((1<<SIZE_Ax)-1)
#else
#define MAXARG_Ax MAX_INT
#endif
#define MAXARG_A ((1<<SIZE_A)-1)
#define MAXARG_B ((1<<SIZE_B)-1)
@ -68,7 +77,7 @@ enum OpMode {iABC, iABx, iAsBx}; /* basic instruction format */
/* creates a mask with `n' 1 bits at position `p' */
#define MASK1(n,p) ((~((~(Instruction)0)<<n))<<p)
#define MASK1(n,p) ((~((~(Instruction)0)<<(n)))<<(p))
/* creates a mask with `n' 0 bits at position `p' */
#define MASK0(n,p) (~MASK1(n,p))
@ -81,21 +90,24 @@ enum OpMode {iABC, iABx, iAsBx}; /* basic instruction format */
#define SET_OPCODE(i,o) ((i) = (((i)&MASK0(SIZE_OP,POS_OP)) | \
((cast(Instruction, o)<<POS_OP)&MASK1(SIZE_OP,POS_OP))))
#define GETARG_A(i) (cast(int, ((i)>>POS_A) & MASK1(SIZE_A,0)))
#define SETARG_A(i,u) ((i) = (((i)&MASK0(SIZE_A,POS_A)) | \
((cast(Instruction, u)<<POS_A)&MASK1(SIZE_A,POS_A))))
#define getarg(i,pos,size) (cast(int, ((i)>>pos) & MASK1(size,0)))
#define setarg(i,v,pos,size) ((i) = (((i)&MASK0(size,pos)) | \
((cast(Instruction, v)<<pos)&MASK1(size,pos))))
#define GETARG_B(i) (cast(int, ((i)>>POS_B) & MASK1(SIZE_B,0)))
#define SETARG_B(i,b) ((i) = (((i)&MASK0(SIZE_B,POS_B)) | \
((cast(Instruction, b)<<POS_B)&MASK1(SIZE_B,POS_B))))
#define GETARG_A(i) getarg(i, POS_A, SIZE_A)
#define SETARG_A(i,v) setarg(i, v, POS_A, SIZE_A)
#define GETARG_C(i) (cast(int, ((i)>>POS_C) & MASK1(SIZE_C,0)))
#define SETARG_C(i,b) ((i) = (((i)&MASK0(SIZE_C,POS_C)) | \
((cast(Instruction, b)<<POS_C)&MASK1(SIZE_C,POS_C))))
#define GETARG_B(i) getarg(i, POS_B, SIZE_B)
#define SETARG_B(i,v) setarg(i, v, POS_B, SIZE_B)
#define GETARG_Bx(i) (cast(int, ((i)>>POS_Bx) & MASK1(SIZE_Bx,0)))
#define SETARG_Bx(i,b) ((i) = (((i)&MASK0(SIZE_Bx,POS_Bx)) | \
((cast(Instruction, b)<<POS_Bx)&MASK1(SIZE_Bx,POS_Bx))))
#define GETARG_C(i) getarg(i, POS_C, SIZE_C)
#define SETARG_C(i,v) setarg(i, v, POS_C, SIZE_C)
#define GETARG_Bx(i) getarg(i, POS_Bx, SIZE_Bx)
#define SETARG_Bx(i,v) setarg(i, v, POS_Bx, SIZE_Bx)
#define GETARG_Ax(i) getarg(i, POS_Ax, SIZE_Ax)
#define SETARG_Ax(i,v) setarg(i, v, POS_Ax, SIZE_Ax)
#define GETARG_sBx(i) (GETARG_Bx(i)-MAXARG_sBx)
#define SETARG_sBx(i,b) SETARG_Bx((i),cast(unsigned int, (b)+MAXARG_sBx))
@ -110,6 +122,9 @@ enum OpMode {iABC, iABx, iAsBx}; /* basic instruction format */
| (cast(Instruction, a)<<POS_A) \
| (cast(Instruction, bc)<<POS_Bx))
#define CREATE_Ax(o,a) ((cast(Instruction, o)<<POS_OP) \
| (cast(Instruction, a)<<POS_Ax))
/*
** Macros to operate RK indices
@ -153,14 +168,15 @@ name args description
------------------------------------------------------------------------*/
OP_MOVE,/* A B R(A) := R(B) */
OP_LOADK,/* A Bx R(A) := Kst(Bx) */
OP_LOADKX,/* A R(A) := Kst(extra arg) */
OP_LOADBOOL,/* A B C R(A) := (Bool)B; if (C) pc++ */
OP_LOADNIL,/* A B R(A) := ... := R(B) := nil */
OP_LOADNIL,/* A B R(A), R(A+1), ..., R(A+B) := nil */
OP_GETUPVAL,/* A B R(A) := UpValue[B] */
OP_GETGLOBAL,/* A Bx R(A) := Gbl[Kst(Bx)] */
OP_GETTABUP,/* A B C R(A) := UpValue[B][RK(C)] */
OP_GETTABLE,/* A B C R(A) := R(B)[RK(C)] */
OP_SETGLOBAL,/* A Bx Gbl[Kst(Bx)] := R(A) */
OP_SETTABUP,/* A B C UpValue[A][RK(B)] := RK(C) */
OP_SETUPVAL,/* A B UpValue[B] := R(A) */
OP_SETTABLE,/* A B C R(A)[RK(B)] := RK(C) */
@ -180,8 +196,7 @@ OP_LEN,/* A B R(A) := length of R(B) */
OP_CONCAT,/* A B C R(A) := R(B).. ... ..R(C) */
OP_JMP,/* sBx pc+=sBx */
OP_JMP,/* A sBx pc+=sBx; if (A) close all upvalues >= R(A) + 1 */
OP_EQ,/* A B C if ((RK(B) == RK(C)) ~= A) then pc++ */
OP_LT,/* A B C if ((RK(B) < RK(C)) ~= A) then pc++ */
OP_LE,/* A B C if ((RK(B) <= RK(C)) ~= A) then pc++ */
@ -197,39 +212,44 @@ OP_FORLOOP,/* A sBx R(A)+=R(A+2);
if R(A) <?= R(A+1) then { pc+=sBx; R(A+3)=R(A) }*/
OP_FORPREP,/* A sBx R(A)-=R(A+2); pc+=sBx */
OP_TFORLOOP,/* A C R(A+3), ... ,R(A+2+C) := R(A)(R(A+1), R(A+2));
if R(A+3) ~= nil then R(A+2)=R(A+3) else pc++ */
OP_TFORCALL,/* A C R(A+3), ... ,R(A+2+C) := R(A)(R(A+1), R(A+2)); */
OP_TFORLOOP,/* A sBx if R(A+1) ~= nil then { R(A)=R(A+1); pc += sBx }*/
OP_SETLIST,/* A B C R(A)[(C-1)*FPF+i] := R(A+i), 1 <= i <= B */
OP_CLOSE,/* A close all variables in the stack up to (>=) R(A)*/
OP_CLOSURE,/* A Bx R(A) := closure(KPROTO[Bx], R(A), ... ,R(A+n)) */
OP_CLOSURE,/* A Bx R(A) := closure(KPROTO[Bx]) */
OP_VARARG,/* A B R(A), R(A+1), ..., R(A+B-2) = vararg */
OP_VARARG/* A B R(A), R(A+1), ..., R(A+B-1) = vararg */
OP_EXTRAARG/* Ax extra (larger) argument for previous opcode */
} OpCode;
#define NUM_OPCODES (cast(int, OP_VARARG) + 1)
#define NUM_OPCODES (cast(int, OP_EXTRAARG) + 1)
/*===========================================================================
Notes:
(*) In OP_CALL, if (B == 0) then B = top. C is the number of returns - 1,
and can be 0: OP_CALL then sets `top' to last_result+1, so
next open instruction (OP_CALL, OP_RETURN, OP_SETLIST) may use `top'.
(*) In OP_CALL, if (B == 0) then B = top. If (C == 0), then `top' is
set to last_result+1, so next open instruction (OP_CALL, OP_RETURN,
OP_SETLIST) may use `top'.
(*) In OP_VARARG, if (B == 0) then use actual number of varargs and
set top (like in OP_CALL with C == 0).
(*) In OP_RETURN, if (B == 0) then return up to `top'
(*) In OP_RETURN, if (B == 0) then return up to `top'.
(*) In OP_SETLIST, if (B == 0) then B = `top';
if (C == 0) then next `instruction' is real C
(*) In OP_SETLIST, if (B == 0) then B = `top'; if (C == 0) then next
'instruction' is EXTRAARG(real C).
(*) In OP_LOADKX, the next 'instruction' is always EXTRAARG.
(*) For comparisons, A specifies what condition the test should accept
(true or false).
(*) All `skips' (pc++) assume that next instruction is a jump
(*) All `skips' (pc++) assume that next instruction is a jump.
===========================================================================*/
@ -239,7 +259,7 @@ OP_VARARG/* A B R(A), R(A+1), ..., R(A+B-1) = vararg */
** bits 2-3: C arg mode
** bits 4-5: B arg mode
** bit 6: instruction set register A
** bit 7: operator is a test
** bit 7: operator is a test (next instruction must be a jump)
*/
enum OpArgMask {
@ -249,7 +269,7 @@ enum OpArgMask {
OpArgK /* argument is a constant or register/constant */
};
LUAI_DATA const lu_byte luaP_opmodes[NUM_OPCODES];
LUAI_DDEC const lu_byte luaP_opmodes[NUM_OPCODES];
#define getOpMode(m) (cast(enum OpMode, luaP_opmodes[m] & 3))
#define getBMode(m) (cast(enum OpArgMask, (luaP_opmodes[m] >> 4) & 3))
@ -258,7 +278,7 @@ LUAI_DATA const lu_byte luaP_opmodes[NUM_OPCODES];
#define testTMode(m) (luaP_opmodes[m] & (1 << 7))
LUAI_DATA const char *const luaP_opnames[NUM_OPCODES+1]; /* opcode names */
LUAI_DDEC const char *const luaP_opnames[NUM_OPCODES+1]; /* opcode names */
/* number of list items to accumulate before a SETLIST instruction */

73
depends/lua/include/lparser.h
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@ -1,5 +1,5 @@
/*
** $Id: lparser.h,v 1.57.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lparser.h,v 1.69 2011/07/27 18:09:01 roberto Exp $
** Lua Parser
** See Copyright Notice in lua.h
*/
@ -23,34 +23,72 @@ typedef enum {
VFALSE,
VK, /* info = index of constant in `k' */
VKNUM, /* nval = numerical value */
VNONRELOC, /* info = result register */
VLOCAL, /* info = local register */
VUPVAL, /* info = index of upvalue in `upvalues' */
VGLOBAL, /* info = index of table; aux = index of global name in `k' */
VINDEXED, /* info = table register; aux = index register (or `k') */
VUPVAL, /* info = index of upvalue in 'upvalues' */
VINDEXED, /* t = table register/upvalue; idx = index R/K */
VJMP, /* info = instruction pc */
VRELOCABLE, /* info = instruction pc */
VNONRELOC, /* info = result register */
VCALL, /* info = instruction pc */
VVARARG /* info = instruction pc */
} expkind;
#define vkisvar(k) (VLOCAL <= (k) && (k) <= VINDEXED)
#define vkisinreg(k) ((k) == VNONRELOC || (k) == VLOCAL)
typedef struct expdesc {
expkind k;
union {
struct { int info, aux; } s;
lua_Number nval;
struct { /* for indexed variables (VINDEXED) */
short idx; /* index (R/K) */
lu_byte t; /* table (register or upvalue) */
lu_byte vt; /* whether 't' is register (VLOCAL) or upvalue (VUPVAL) */
} ind;
int info; /* for generic use */
lua_Number nval; /* for VKNUM */
} u;
int t; /* patch list of `exit when true' */
int f; /* patch list of `exit when false' */
} expdesc;
typedef struct upvaldesc {
lu_byte k;
lu_byte info;
} upvaldesc;
/* description of active local variable */
typedef struct Vardesc {
short idx; /* variable index in stack */
} Vardesc;
/* description of pending goto statements and label statements */
typedef struct Labeldesc {
TString *name; /* label identifier */
int pc; /* position in code */
int line; /* line where it appeared */
lu_byte nactvar; /* local level where it appears in current block */
} Labeldesc;
/* list of labels or gotos */
typedef struct Labellist {
Labeldesc *arr; /* array */
int n; /* number of entries in use */
int size; /* array size */
} Labellist;
/* dynamic structures used by the parser */
typedef struct Dyndata {
struct { /* list of active local variables */
Vardesc *arr;
int n;
int size;
} actvar;
Labellist gt; /* list of pending gotos */
Labellist label; /* list of active labels */
} Dyndata;
/* control of blocks */
struct BlockCnt; /* defined in lparser.c */
@ -60,23 +98,22 @@ typedef struct FuncState {
Table *h; /* table to find (and reuse) elements in `k' */
struct FuncState *prev; /* enclosing function */
struct LexState *ls; /* lexical state */
struct lua_State *L; /* copy of the Lua state */
struct BlockCnt *bl; /* chain of current blocks */
int pc; /* next position to code (equivalent to `ncode') */
int lasttarget; /* `pc' of last `jump target' */
int lasttarget; /* 'label' of last 'jump label' */
int jpc; /* list of pending jumps to `pc' */
int freereg; /* first free register */
int nk; /* number of elements in `k' */
int np; /* number of elements in `p' */
short nlocvars; /* number of elements in `locvars' */
int firstlocal; /* index of first local var (in Dyndata array) */
short nlocvars; /* number of elements in 'f->locvars' */
lu_byte nactvar; /* number of active local variables */
upvaldesc upvalues[LUAI_MAXUPVALUES]; /* upvalues */
unsigned short actvar[LUAI_MAXVARS]; /* declared-variable stack */
lu_byte nups; /* number of upvalues */
lu_byte freereg; /* first free register */
} FuncState;
LUAI_FUNC Proto *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff,
const char *name);
Dyndata *dyd, const char *name, int firstchar);
#endif

135
depends/lua/include/lstate.h
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lstate.h,v 2.24.1.2 2008/01/03 15:20:39 roberto Exp $
** $Id: lstate.h,v 2.74 2011/09/30 12:45:07 roberto Exp $
** Global State
** See Copyright Notice in lua.h
*/
@ -14,26 +14,47 @@
#include "lzio.h"
/*
struct lua_longjmp; /* defined in ldo.c */
** Some notes about garbage-collected objects: All objects in Lua must
** be kept somehow accessible until being freed.
**
** Lua keeps most objects linked in list g->allgc. The link uses field
** 'next' of the CommonHeader.
**
** Strings are kept in several lists headed by the array g->strt.hash.
**
** Open upvalues are not subject to independent garbage collection. They
** are collected together with their respective threads. Lua keeps a
** double-linked list with all open upvalues (g->uvhead) so that it can
** mark objects referred by them. (They are always gray, so they must
** be remarked in the atomic step. Usually their contents would be marked
** when traversing the respective threads, but the thread may already be
** dead, while the upvalue is still accessible through closures.)
**
** Objects with finalizers are kept in the list g->finobj.
**
** The list g->tobefnz links all objects being finalized.
*/
/* table of globals */
#define gt(L) (&L->l_gt)
struct lua_longjmp; /* defined in ldo.c */
/* registry */
#define registry(L) (&G(L)->l_registry)
/* extra stack space to handle TM calls and some other extras */
#define EXTRA_STACK 5
#define BASIC_CI_SIZE 8
#define BASIC_STACK_SIZE (2*LUA_MINSTACK)
/* kinds of Garbage Collection */
#define KGC_NORMAL 0
#define KGC_EMERGENCY 1 /* gc was forced by an allocation failure */
#define KGC_GEN 2 /* generational collection */
typedef struct stringtable {
GCObject **hash;
@ -43,54 +64,83 @@ typedef struct stringtable {
/*
** informations about a call
** information about a call
*/
typedef struct CallInfo {
StkId base; /* base for this function */
StkId func; /* function index in the stack */
StkId top; /* top for this function */
struct CallInfo *previous, *next; /* dynamic call link */
short nresults; /* expected number of results from this function */
lu_byte callstatus;
union {
struct { /* only for Lua functions */
StkId base; /* base for this function */
const Instruction *savedpc;
int nresults; /* expected number of results from this function */
int tailcalls; /* number of tail calls lost under this entry */
} l;
struct { /* only for C functions */
int ctx; /* context info. in case of yields */
lua_CFunction k; /* continuation in case of yields */
ptrdiff_t old_errfunc;
ptrdiff_t extra;
lu_byte old_allowhook;
lu_byte status;
} c;
} u;
} CallInfo;
/*
** Bits in CallInfo status
*/
#define CIST_LUA (1<<0) /* call is running a Lua function */
#define CIST_HOOKED (1<<1) /* call is running a debug hook */
#define CIST_REENTRY (1<<2) /* call is running on same invocation of
luaV_execute of previous call */
#define CIST_YIELDED (1<<3) /* call reentered after suspension */
#define CIST_YPCALL (1<<4) /* call is a yieldable protected call */
#define CIST_STAT (1<<5) /* call has an error status (pcall) */
#define CIST_TAIL (1<<6) /* call was tail called */
#define curr_func(L) (clvalue(L->ci->func))
#define ci_func(ci) (clvalue((ci)->func))
#define f_isLua(ci) (!ci_func(ci)->c.isC)
#define isLua(ci) (ttisfunction((ci)->func) && f_isLua(ci))
#define isLua(ci) ((ci)->callstatus & CIST_LUA)
/*
** `global state', shared by all threads of this state
*/
typedef struct global_State {
stringtable strt; /* hash table for strings */
lua_Alloc frealloc; /* function to reallocate memory */
void *ud; /* auxiliary data to `frealloc' */
lu_mem totalbytes; /* number of bytes currently allocated - GCdebt */
l_mem GCdebt; /* bytes allocated not yet compensated by the collector */
lu_mem lastmajormem; /* memory in use after last major collection */
stringtable strt; /* hash table for strings */
TValue l_registry;
lu_byte currentwhite;
lu_byte gcstate; /* state of garbage collector */
lu_byte gckind; /* kind of GC running */
lu_byte gcrunning; /* true if GC is running */
int sweepstrgc; /* position of sweep in `strt' */
GCObject *rootgc; /* list of all collectable objects */
GCObject **sweepgc; /* position of sweep in `rootgc' */
GCObject *allgc; /* list of all collectable objects */
GCObject *finobj; /* list of collectable objects with finalizers */
GCObject **sweepgc; /* current position of sweep */
GCObject *gray; /* list of gray objects */
GCObject *grayagain; /* list of objects to be traversed atomically */
GCObject *weak; /* list of weak tables (to be cleared) */
GCObject *tmudata; /* last element of list of userdata to be GC */
Mbuffer buff; /* temporary buffer for string concatentation */
lu_mem GCthreshold;
lu_mem totalbytes; /* number of bytes currently allocated */
lu_mem estimate; /* an estimate of number of bytes actually in use */
lu_mem gcdept; /* how much GC is `behind schedule' */
GCObject *weak; /* list of tables with weak values */
GCObject *ephemeron; /* list of ephemeron tables (weak keys) */
GCObject *allweak; /* list of all-weak tables */
GCObject *tobefnz; /* list of userdata to be GC */
UpVal uvhead; /* head of double-linked list of all open upvalues */
Mbuffer buff; /* temporary buffer for string concatenation */
int gcpause; /* size of pause between successive GCs */
int gcmajorinc; /* how much to wait for a major GC (only in gen. mode) */
int gcstepmul; /* GC `granularity' */
lua_CFunction panic; /* to be called in unprotected errors */
TValue l_registry;
struct lua_State *mainthread;
UpVal uvhead; /* head of double-linked list of all open upvalues */
struct Table *mt[NUM_TAGS]; /* metatables for basic types */
const lua_Number *version; /* pointer to version number */
TString *memerrmsg; /* memory-error message */
TString *tmname[TM_N]; /* array with tag-method names */
struct Table *mt[LUA_NUMTAGS]; /* metatables for basic types */
} global_State;
@ -101,29 +151,24 @@ struct lua_State {
CommonHeader;
lu_byte status;
StkId top; /* first free slot in the stack */
StkId base; /* base of current function */
global_State *l_G;
CallInfo *ci; /* call info for current function */
const Instruction *savedpc; /* `savedpc' of current function */
const Instruction *oldpc; /* last pc traced */
StkId stack_last; /* last free slot in the stack */
StkId stack; /* stack base */
CallInfo *end_ci; /* points after end of ci array*/
CallInfo *base_ci; /* array of CallInfo's */
int stacksize;
int size_ci; /* size of array `base_ci' */
unsigned short nny; /* number of non-yieldable calls in stack */
unsigned short nCcalls; /* number of nested C calls */
unsigned short baseCcalls; /* nested C calls when resuming coroutine */
lu_byte hookmask;
lu_byte allowhook;
int basehookcount;
int hookcount;
lua_Hook hook;
TValue l_gt; /* table of globals */
TValue env; /* temporary place for environments */
GCObject *openupval; /* list of open upvalues in this stack */
GCObject *gclist;
struct lua_longjmp *errorJmp; /* current error recover point */
ptrdiff_t errfunc; /* current error handling function (stack index) */
CallInfo base_ci; /* CallInfo for first level (C calling Lua) */
};
@ -134,7 +179,7 @@ struct lua_State {
** Union of all collectable objects
*/
union GCObject {
GCheader gch;
GCheader gch; /* common header */
union TString ts;
union Udata u;
union Closure cl;
@ -145,25 +190,31 @@ union GCObject {
};
#define gch(o) (&(o)->gch)
/* macros to convert a GCObject into a specific value */
#define rawgco2ts(o) check_exp((o)->gch.tt == LUA_TSTRING, &((o)->ts))
#define gco2ts(o) (&rawgco2ts(o)->tsv)
#define rawgco2u(o) check_exp((o)->gch.tt == LUA_TUSERDATA, &((o)->u))
#define gco2u(o) (&rawgco2u(o)->uv)
#define gco2cl(o) check_exp((o)->gch.tt == LUA_TFUNCTION, &((o)->cl))
#define gco2h(o) check_exp((o)->gch.tt == LUA_TTABLE, &((o)->h))
#define gco2t(o) check_exp((o)->gch.tt == LUA_TTABLE, &((o)->h))
#define gco2p(o) check_exp((o)->gch.tt == LUA_TPROTO, &((o)->p))
#define gco2uv(o) check_exp((o)->gch.tt == LUA_TUPVAL, &((o)->uv))
#define ngcotouv(o) \
check_exp((o) == NULL || (o)->gch.tt == LUA_TUPVAL, &((o)->uv))
#define gco2th(o) check_exp((o)->gch.tt == LUA_TTHREAD, &((o)->th))
/* macro to convert any Lua object into a GCObject */
#define obj2gco(v) (cast(GCObject *, (v)))
LUAI_FUNC lua_State *luaE_newthread (lua_State *L);
/* actual number of total bytes allocated */
#define gettotalbytes(g) ((g)->totalbytes + (g)->GCdebt)
LUAI_FUNC void luaE_setdebt (global_State *g, l_mem debt);
LUAI_FUNC void luaE_freethread (lua_State *L, lua_State *L1);
LUAI_FUNC CallInfo *luaE_extendCI (lua_State *L);
LUAI_FUNC void luaE_freeCI (lua_State *L);
#endif

12
depends/lua/include/lstring.h
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lstring.h,v 1.43.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lstring.h,v 1.46 2010/04/05 16:26:37 roberto Exp $
** String table (keep all strings handled by Lua)
** See Copyright Notice in lua.h
*/
@ -7,7 +7,6 @@
#ifndef lstring_h
#define lstring_h
#include "lgc.h"
#include "lobject.h"
#include "lstate.h"
@ -17,15 +16,22 @@
#define sizeudata(u) (sizeof(union Udata)+(u)->len)
#define luaS_new(L, s) (luaS_newlstr(L, s, strlen(s)))
#define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \
(sizeof(s)/sizeof(char))-1))
#define luaS_fix(s) l_setbit((s)->tsv.marked, FIXEDBIT)
/*
** as all string are internalized, string equality becomes
** pointer equality
*/
#define eqstr(a,b) ((a) == (b))
LUAI_FUNC void luaS_resize (lua_State *L, int newsize);
LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, Table *e);
LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l);
LUAI_FUNC TString *luaS_new (lua_State *L, const char *str);
#endif

15
depends/lua/include/ltable.h
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: ltable.h,v 2.10.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: ltable.h,v 2.16 2011/08/17 20:26:47 roberto Exp $
** Lua tables (hash)
** See Copyright Notice in lua.h
*/
@ -11,20 +11,21 @@
#define gnode(t,i) (&(t)->node[i])
#define gkey(n) (&(n)->i_key.nk)
#define gkey(n) (&(n)->i_key.tvk)
#define gval(n) (&(n)->i_val)
#define gnext(n) ((n)->i_key.nk.next)
#define key2tval(n) (&(n)->i_key.tvk)
#define invalidateTMcache(t) ((t)->flags = 0)
LUAI_FUNC const TValue *luaH_getnum (Table *t, int key);
LUAI_FUNC TValue *luaH_setnum (lua_State *L, Table *t, int key);
LUAI_FUNC const TValue *luaH_getint (Table *t, int key);
LUAI_FUNC void luaH_setint (lua_State *L, Table *t, int key, TValue *value);
LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key);
LUAI_FUNC TValue *luaH_setstr (lua_State *L, Table *t, TString *key);
LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key);
LUAI_FUNC TValue *luaH_newkey (lua_State *L, Table *t, const TValue *key);
LUAI_FUNC TValue *luaH_set (lua_State *L, Table *t, const TValue *key);
LUAI_FUNC Table *luaH_new (lua_State *L, int narray, int lnhash);
LUAI_FUNC Table *luaH_new (lua_State *L);
LUAI_FUNC void luaH_resize (lua_State *L, Table *t, int nasize, int nhsize);
LUAI_FUNC void luaH_resizearray (lua_State *L, Table *t, int nasize);
LUAI_FUNC void luaH_free (lua_State *L, Table *t);
LUAI_FUNC int luaH_next (lua_State *L, Table *t, StkId key);

9
depends/lua/include/ltm.h
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@ -1,5 +1,5 @@
/*
** $Id: ltm.h,v 2.6.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: ltm.h,v 2.11 2011/02/28 17:32:10 roberto Exp $
** Tag methods
** See Copyright Notice in lua.h
*/
@ -20,6 +20,7 @@ typedef enum {
TM_NEWINDEX,
TM_GC,
TM_MODE,
TM_LEN,
TM_EQ, /* last tag method with `fast' access */
TM_ADD,
TM_SUB,
@ -28,7 +29,6 @@ typedef enum {
TM_MOD,
TM_POW,
TM_UNM,
TM_LEN,
TM_LT,
TM_LE,
TM_CONCAT,
@ -43,7 +43,10 @@ typedef enum {
#define fasttm(l,et,e) gfasttm(G(l), et, e)
LUAI_DATA const char *const luaT_typenames[];
#define ttypename(x) luaT_typenames_[(x) + 1]
#define objtypename(x) ttypename(ttypenv(x))
LUAI_DDEC const char *const luaT_typenames_[LUA_TOTALTAGS];
LUAI_FUNC const TValue *luaT_gettm (Table *events, TMS event, TString *ename);

209
depends/lua/include/lua.h
Unescape Escape View File

@ -1,6 +1,6 @@
/*
** $Id: lua.h,v 1.218.1.5 2008/08/06 13:30:12 roberto Exp $
** Lua - An Extensible Extension Language
** $Id: lua.h,v 1.282 2011/11/29 15:55:08 roberto Exp $
** Lua - A Scripting Language
** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
** See Copyright Notice at the end of this file
*/
@ -16,35 +16,39 @@
#include "luaconf.h"
#define LUA_VERSION "Lua 5.1"
#define LUA_RELEASE "Lua 5.1.4"
#define LUA_VERSION_NUM 501
#define LUA_COPYRIGHT "Copyright (C) 1994-2008 Lua.org, PUC-Rio"
#define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo & W. Celes"
#define LUA_VERSION_MAJOR "5"
#define LUA_VERSION_MINOR "2"
#define LUA_VERSION_NUM 502
#define LUA_VERSION_RELEASE "0"
#define LUA_VERSION "Lua " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
#define LUA_RELEASE LUA_VERSION "." LUA_VERSION_RELEASE
#define LUA_COPYRIGHT LUA_RELEASE " Copyright (C) 1994-2011 Lua.org, PUC-Rio"
#define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo, W. Celes"
/* mark for precompiled code (`<esc>Lua') */
/* mark for precompiled code ('<esc>Lua') */
#define LUA_SIGNATURE "\033Lua"
/* option for multiple returns in `lua_pcall' and `lua_call' */
/* option for multiple returns in 'lua_pcall' and 'lua_call' */
#define LUA_MULTRET (-1)
/*
** pseudo-indices
*/
#define LUA_REGISTRYINDEX (-10000)
#define LUA_ENVIRONINDEX (-10001)
#define LUA_GLOBALSINDEX (-10002)
#define lua_upvalueindex(i) (LUA_GLOBALSINDEX-(i))
#define LUA_REGISTRYINDEX LUAI_FIRSTPSEUDOIDX
#define lua_upvalueindex(i) (LUA_REGISTRYINDEX - (i))
/* thread status; 0 is OK */
/* thread status */
#define LUA_OK 0
#define LUA_YIELD 1
#define LUA_ERRRUN 2
#define LUA_ERRSYNTAX 3
#define LUA_ERRMEM 4
#define LUA_ERRERR 5
#define LUA_ERRGCMM 5
#define LUA_ERRERR 6
typedef struct lua_State lua_State;
@ -81,18 +85,18 @@ typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
#define LUA_TUSERDATA 7
#define LUA_TTHREAD 8
#define LUA_NUMTAGS 9
/* minimum Lua stack available to a C function */
#define LUA_MINSTACK 20
/*
** generic extra include file
*/
#if defined(LUA_USER_H)
#include LUA_USER_H
#endif
/* predefined values in the registry */
#define LUA_RIDX_MAINTHREAD 1
#define LUA_RIDX_GLOBALS 2
#define LUA_RIDX_LAST LUA_RIDX_GLOBALS
/* type of numbers in Lua */
@ -102,6 +106,18 @@ typedef LUA_NUMBER lua_Number;
/* type for integer functions */
typedef LUA_INTEGER lua_Integer;
/* unsigned integer type */
typedef LUA_UNSIGNED lua_Unsigned;
/*
** generic extra include file
*/
#if defined(LUA_USER_H)
#include LUA_USER_H
#endif
/*
@ -114,15 +130,20 @@ LUA_API lua_State *(lua_newthread) (lua_State *L);
LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);
LUA_API const lua_Number *(lua_version) (lua_State *L);
/*
** basic stack manipulation
*/
LUA_API int (lua_absindex) (lua_State *L, int idx);
LUA_API int (lua_gettop) (lua_State *L);
LUA_API void (lua_settop) (lua_State *L, int idx);
LUA_API void (lua_pushvalue) (lua_State *L, int idx);
LUA_API void (lua_remove) (lua_State *L, int idx);
LUA_API void (lua_insert) (lua_State *L, int idx);
LUA_API void (lua_replace) (lua_State *L, int idx);
LUA_API void (lua_copy) (lua_State *L, int fromidx, int toidx);
LUA_API int (lua_checkstack) (lua_State *L, int sz);
LUA_API void (lua_xmove) (lua_State *from, lua_State *to, int n);
@ -139,29 +160,49 @@ LUA_API int (lua_isuserdata) (lua_State *L, int idx);
LUA_API int (lua_type) (lua_State *L, int idx);
LUA_API const char *(lua_typename) (lua_State *L, int tp);
LUA_API int (lua_equal) (lua_State *L, int idx1, int idx2);
LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2);
LUA_API int (lua_lessthan) (lua_State *L, int idx1, int idx2);
LUA_API lua_Number (lua_tonumber) (lua_State *L, int idx);
LUA_API lua_Integer (lua_tointeger) (lua_State *L, int idx);
LUA_API lua_Number (lua_tonumberx) (lua_State *L, int idx, int *isnum);
LUA_API lua_Integer (lua_tointegerx) (lua_State *L, int idx, int *isnum);
LUA_API lua_Unsigned (lua_tounsignedx) (lua_State *L, int idx, int *isnum);
LUA_API int (lua_toboolean) (lua_State *L, int idx);
LUA_API const char *(lua_tolstring) (lua_State *L, int idx, size_t *len);
LUA_API size_t (lua_objlen) (lua_State *L, int idx);
LUA_API size_t (lua_rawlen) (lua_State *L, int idx);
LUA_API lua_CFunction (lua_tocfunction) (lua_State *L, int idx);
LUA_API void *(lua_touserdata) (lua_State *L, int idx);
LUA_API lua_State *(lua_tothread) (lua_State *L, int idx);
LUA_API const void *(lua_topointer) (lua_State *L, int idx);
/*
** Comparison and arithmetic functions
*/
#define LUA_OPADD 0 /* ORDER TM */
#define LUA_OPSUB 1
#define LUA_OPMUL 2
#define LUA_OPDIV 3
#define LUA_OPMOD 4
#define LUA_OPPOW 5
#define LUA_OPUNM 6
LUA_API void (lua_arith) (lua_State *L, int op);
#define LUA_OPEQ 0
#define LUA_OPLT 1
#define LUA_OPLE 2
LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2);
LUA_API int (lua_compare) (lua_State *L, int idx1, int idx2, int op);
/*
** push functions (C -> stack)
*/
LUA_API void (lua_pushnil) (lua_State *L);
LUA_API void (lua_pushnumber) (lua_State *L, lua_Number n);
LUA_API void (lua_pushinteger) (lua_State *L, lua_Integer n);
LUA_API void (lua_pushlstring) (lua_State *L, const char *s, size_t l);
LUA_API void (lua_pushstring) (lua_State *L, const char *s);
LUA_API void (lua_pushunsigned) (lua_State *L, lua_Unsigned n);
LUA_API const char *(lua_pushlstring) (lua_State *L, const char *s, size_t l);
LUA_API const char *(lua_pushstring) (lua_State *L, const char *s);
LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt,
va_list argp);
LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...);
@ -174,35 +215,47 @@ LUA_API int (lua_pushthread) (lua_State *L);
/*
** get functions (Lua -> stack)
*/
LUA_API void (lua_getglobal) (lua_State *L, const char *var);
LUA_API void (lua_gettable) (lua_State *L, int idx);
LUA_API void (lua_getfield) (lua_State *L, int idx, const char *k);
LUA_API void (lua_rawget) (lua_State *L, int idx);
LUA_API void (lua_rawgeti) (lua_State *L, int idx, int n);
LUA_API void (lua_rawgetp) (lua_State *L, int idx, const void *p);
LUA_API void (lua_createtable) (lua_State *L, int narr, int nrec);
LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz);
LUA_API int (lua_getmetatable) (lua_State *L, int objindex);
LUA_API void (lua_getfenv) (lua_State *L, int idx);
LUA_API void (lua_getuservalue) (lua_State *L, int idx);
/*
** set functions (stack -> Lua)
*/
LUA_API void (lua_setglobal) (lua_State *L, const char *var);
LUA_API void (lua_settable) (lua_State *L, int idx);
LUA_API void (lua_setfield) (lua_State *L, int idx, const char *k);
LUA_API void (lua_rawset) (lua_State *L, int idx);
LUA_API void (lua_rawseti) (lua_State *L, int idx, int n);
LUA_API void (lua_rawsetp) (lua_State *L, int idx, const void *p);
LUA_API int (lua_setmetatable) (lua_State *L, int objindex);
LUA_API int (lua_setfenv) (lua_State *L, int idx);
LUA_API void (lua_setuservalue) (lua_State *L, int idx);
/*
** `load' and `call' functions (load and run Lua code)
** 'load' and 'call' functions (load and run Lua code)
*/
LUA_API void (lua_call) (lua_State *L, int nargs, int nresults);
LUA_API int (lua_pcall) (lua_State *L, int nargs, int nresults, int errfunc);
LUA_API int (lua_cpcall) (lua_State *L, lua_CFunction func, void *ud);
LUA_API void (lua_callk) (lua_State *L, int nargs, int nresults, int ctx,
lua_CFunction k);
#define lua_call(L,n,r) lua_callk(L, (n), (r), 0, NULL)
LUA_API int (lua_getctx) (lua_State *L, int *ctx);
LUA_API int (lua_pcallk) (lua_State *L, int nargs, int nresults, int errfunc,
int ctx, lua_CFunction k);
#define lua_pcall(L,n,r,f) lua_pcallk(L, (n), (r), (f), 0, NULL)
LUA_API int (lua_load) (lua_State *L, lua_Reader reader, void *dt,
const char *chunkname);
const char *chunkname,
const char *mode);
LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data);
@ -210,8 +263,10 @@ LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data);
/*
** coroutine functions
*/
LUA_API int (lua_yield) (lua_State *L, int nresults);
LUA_API int (lua_resume) (lua_State *L, int narg);
LUA_API int (lua_yieldk) (lua_State *L, int nresults, int ctx,
lua_CFunction k);
#define lua_yield(L,n) lua_yieldk(L, (n), 0, NULL)
LUA_API int (lua_resume) (lua_State *L, lua_State *from, int narg);
LUA_API int (lua_status) (lua_State *L);
/*
@ -226,6 +281,10 @@ LUA_API int (lua_status) (lua_State *L);
#define LUA_GCSTEP 5
#define LUA_GCSETPAUSE 6
#define LUA_GCSETSTEPMUL 7
#define LUA_GCSETMAJORINC 8
#define LUA_GCISRUNNING 9
#define LUA_GCGEN 10
#define LUA_GCINC 11
LUA_API int (lua_gc) (lua_State *L, int what, int data);
@ -239,9 +298,10 @@ LUA_API int (lua_error) (lua_State *L);
LUA_API int (lua_next) (lua_State *L, int idx);
LUA_API void (lua_concat) (lua_State *L, int n);
LUA_API void (lua_len) (lua_State *L, int idx);
LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
LUA_API void (lua_setallocf) (lua_State *L, lua_Alloc f, void *ud);
@ -251,6 +311,10 @@ LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
** ===============================================================
*/
#define lua_tonumber(L,i) lua_tonumberx(L,i,NULL)
#define lua_tointeger(L,i) lua_tointegerx(L,i,NULL)
#define lua_tounsigned(L,i) lua_tounsignedx(L,i,NULL)
#define lua_pop(L,n) lua_settop(L, -(n)-1)
#define lua_newtable(L) lua_createtable(L, 0, 0)
@ -259,8 +323,6 @@ LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
#define lua_pushcfunction(L,f) lua_pushcclosure(L, (f), 0)
#define lua_strlen(L,i) lua_objlen(L, (i))
#define lua_isfunction(L,n) (lua_type(L, (n)) == LUA_TFUNCTION)
#define lua_istable(L,n) (lua_type(L, (n)) == LUA_TTABLE)
#define lua_islightuserdata(L,n) (lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
@ -273,31 +335,13 @@ LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
#define lua_pushliteral(L, s) \
lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1)
#define lua_setglobal(L,s) lua_setfield(L, LUA_GLOBALSINDEX, (s))
#define lua_getglobal(L,s) lua_getfield(L, LUA_GLOBALSINDEX, (s))
#define lua_pushglobaltable(L) \
lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS)
#define lua_tostring(L,i) lua_tolstring(L, (i), NULL)
/*
** compatibility macros and functions
*/
#define lua_open() luaL_newstate()
#define lua_getregistry(L) lua_pushvalue(L, LUA_REGISTRYINDEX)
#define lua_getgccount(L) lua_gc(L, LUA_GCCOUNT, 0)
#define lua_Chunkreader lua_Reader
#define lua_Chunkwriter lua_Writer
/* hack */
LUA_API void lua_setlevel (lua_State *from, lua_State *to);
/*
** {======================================================================
** Debug API
@ -312,7 +356,7 @@ LUA_API void lua_setlevel (lua_State *from, lua_State *to);
#define LUA_HOOKRET 1
#define LUA_HOOKLINE 2
#define LUA_HOOKCOUNT 3
#define LUA_HOOKTAILRET 4
#define LUA_HOOKTAILCALL 4
/*
@ -326,43 +370,50 @@ LUA_API void lua_setlevel (lua_State *from, lua_State *to);
typedef struct lua_Debug lua_Debug; /* activation record */
/* Functions to be called by the debuger in specific events */
/* Functions to be called by the debugger in specific events */
typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar);
LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);
LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n);
LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n);
LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n);
LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n);
LUA_API int (lua_getstack) (lua_State *L, int level, lua_Debug *ar);
LUA_API int (lua_getinfo) (lua_State *L, const char *what, lua_Debug *ar);
LUA_API const char *(lua_getlocal) (lua_State *L, const lua_Debug *ar, int n);
LUA_API const char *(lua_setlocal) (lua_State *L, const lua_Debug *ar, int n);
LUA_API const char *(lua_getupvalue) (lua_State *L, int funcindex, int n);
LUA_API const char *(lua_setupvalue) (lua_State *L, int funcindex, int n);
LUA_API void *(lua_upvalueid) (lua_State *L, int fidx, int n);
LUA_API void (lua_upvaluejoin) (lua_State *L, int fidx1, int n1,
int fidx2, int n2);
LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count);
LUA_API lua_Hook lua_gethook (lua_State *L);
LUA_API int lua_gethookmask (lua_State *L);
LUA_API int lua_gethookcount (lua_State *L);
LUA_API int (lua_sethook) (lua_State *L, lua_Hook func, int mask, int count);
LUA_API lua_Hook (lua_gethook) (lua_State *L);
LUA_API int (lua_gethookmask) (lua_State *L);
LUA_API int (lua_gethookcount) (lua_State *L);
struct lua_Debug {
int event;
const char *name; /* (n) */
const char *namewhat; /* (n) `global', `local', `field', `method' */
const char *what; /* (S) `Lua', `C', `main', `tail' */
const char *namewhat; /* (n) 'global', 'local', 'field', 'method' */
const char *what; /* (S) 'Lua', 'C', 'main', 'tail' */
const char *source; /* (S) */
int currentline; /* (l) */
int nups; /* (u) number of upvalues */
int linedefined; /* (S) */
int lastlinedefined; /* (S) */
unsigned char nups; /* (u) number of upvalues */
unsigned char nparams;/* (u) number of parameters */
char isvararg; /* (u) */
char istailcall; /* (t) */
char short_src[LUA_IDSIZE]; /* (S) */
/* private part */
int i_ci; /* active function */
struct CallInfo *i_ci; /* active function */
};
/* }====================================================================== */
/******************************************************************************
* Copyright (C) 1994-2008 Lua.org, PUC-Rio. All rights reserved.
* Copyright (C) 1994-2011 Lua.org, PUC-Rio. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the

683
depends/lua/include/luaconf.h
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: luaconf.h,v 1.82.1.7 2008/02/11 16:25:08 roberto Exp $
** $Id: luaconf.h,v 1.170 2011/12/06 16:58:36 roberto Exp $
** Configuration file for Lua
** See Copyright Notice in lua.h
*/
@ -24,30 +24,44 @@
** CHANGE it (define it) if you want Lua to avoid the use of any
** non-ansi feature or library.
*/
#if defined(__STRICT_ANSI__)
#if !defined(LUA_ANSI) && defined(__STRICT_ANSI__)
#define LUA_ANSI
#endif
#if !defined(LUA_ANSI) && defined(_WIN32)
#define LUA_WIN
#if !defined(LUA_ANSI) && defined(_WIN32) && !defined(_WIN32_WCE)
#define LUA_WIN /* enable goodies for regular Windows platforms */
#endif
#if defined(LUA_WIN)
#define LUA_DL_DLL
#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
#endif
#if defined(LUA_USE_LINUX)
#define LUA_USE_POSIX
#define LUA_USE_DLOPEN /* needs an extra library: -ldl */
#define LUA_USE_READLINE /* needs some extra libraries */
#define LUA_USE_STRTODHEX /* assume 'strtod' handles hexa formats */
#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
#define LUA_USE_LONGLONG /* assume support for long long */
#endif
#if defined(LUA_USE_MACOSX)
#define LUA_USE_POSIX
#define LUA_DL_DYLD /* does not need extra library */
#define LUA_USE_DLOPEN /* does not need -ldl */
#define LUA_USE_READLINE /* needs an extra library: -lreadline */
#define LUA_USE_STRTODHEX /* assume 'strtod' handles hexa formats */
#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
#define LUA_USE_LONGLONG /* assume support for long long */
#endif
/*
@@ LUA_USE_POSIX includes all functionallity listed as X/Open System
@@ LUA_USE_POSIX includes all functionality listed as X/Open System
@* Interfaces Extension (XSI).
** CHANGE it (define it) if your system is XSI compatible.
*/
@ -56,20 +70,10 @@
#define LUA_USE_ISATTY
#define LUA_USE_POPEN
#define LUA_USE_ULONGJMP
#define LUA_USE_GMTIME_R
#endif
/*
@@ LUA_PATH and LUA_CPATH are the names of the environment variables that
@* Lua check to set its paths.
@@ LUA_INIT is the name of the environment variable that Lua
@* checks for initialization code.
** CHANGE them if you want different names.
*/
#define LUA_PATH "LUA_PATH"
#define LUA_CPATH "LUA_CPATH"
#define LUA_INIT "LUA_INIT"
/*
@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
@ -80,29 +84,27 @@
** hierarchy or if you want to install your libraries in
** non-conventional directories.
*/
#if defined(_WIN32)
#if defined(_WIN32) /* { */
/*
** In Windows, any exclamation mark ('!') in the path is replaced by the
** path of the directory of the executable file of the current process.
*/
#define LUA_LDIR "!\\lua\\"
#define LUA_LDIR "!\\hack\\lua\\"
#define LUA_CDIR "!\\"
#define LUA_PATH_DEFAULT \
".\\?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \
LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua"
LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" ".\\?.lua"
#define LUA_CPATH_DEFAULT \
".\\?.dll;" LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll"
LUA_CDIR"?.dll;" ".\\?.dll"
#else
#define LUA_ROOT "/usr/local/"
#define LUA_LDIR LUA_ROOT "share/lua/5.1/"
#define LUA_CDIR LUA_ROOT "lib/lua/5.1/"
#else /* }{ */
#define LUA_LDIR "./hack/lua/"
#define LUA_CDIR "./hack/"
#define LUA_PATH_DEFAULT \
"./?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \
LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua"
LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" "./?.lua"
#define LUA_CPATH_DEFAULT \
"./?.so;" LUA_CDIR"?.so;" LUA_CDIR"loadall.so"
#endif
LUA_CDIR"?.so;" "./?.so"
#endif /* } */
/*
@ -118,88 +120,71 @@
/*
@@ LUA_PATHSEP is the character that separates templates in a path.
@@ LUA_PATH_MARK is the string that marks the substitution points in a
@* template.
@@ LUA_EXECDIR in a Windows path is replaced by the executable's
@* directory.
@@ LUA_IGMARK is a mark to ignore all before it when bulding the
@* luaopen_ function name.
** CHANGE them if for some reason your system cannot use those
** characters. (E.g., if one of those characters is a common character
** in file/directory names.) Probably you do not need to change them.
*/
#define LUA_PATHSEP ";"
#define LUA_PATH_MARK "?"
#define LUA_EXECDIR "!"
#define LUA_IGMARK "-"
/*
@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger.
** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
** machines, ptrdiff_t gives a good choice between int or long.)
@@ LUA_ENV is the name of the variable that holds the current
@@ environment, used to access global names.
** CHANGE it if you do not like this name.
*/
#define LUA_INTEGER ptrdiff_t
#define LUA_ENV "_ENV"
/*
@@ LUA_API is a mark for all core API functions.
@@ LUALIB_API is a mark for all standard library functions.
@@ LUALIB_API is a mark for all auxiliary library functions.
@@ LUAMOD_API is a mark for all standard library opening functions.
** CHANGE them if you need to define those functions in some special way.
** For instance, if you want to create one Windows DLL with the core and
** the libraries, you may want to use the following definition (define
** LUA_BUILD_AS_DLL to get it).
*/
#ifdef __cplusplus
#define LUA_API_EXTERN extern
#else
#define LUA_API_EXTERN extern
#endif
#if defined(LUA_BUILD_AS_DLL)
#if defined(LUA_BUILD_AS_DLL) /* { */
#if defined(_MSC_VER)
#if defined(LUA_CORE) || defined(LUA_LIB)
#define LUA_API LUA_API_EXTERN __declspec(dllexport)
#if defined(LUA_CORE) || defined(LUA_LIB) /* { */
#define LUA_API __declspec(dllexport)
#else /* }{ */
#define LUA_API __declspec(dllimport)
#endif /* } */
#else
#define LUA_API LUA_API_EXTERN __declspec(dllimport)
#define LUA_API __attribute__ ((visibility("default")))
#endif
#else
#define LUA_API LUA_API_EXTERN __attribute__ ((visibility("default")))
#endif
#else
#ifdef __cplusplus
#define LUA_API extern "C"
#else
#else /* }{ */
#define LUA_API extern
#endif
#endif
#endif /* } */
/* more often than not the libs go together with the core */
#define LUALIB_API LUA_API
#define LUAMOD_API LUALIB_API
/*
@@ LUAI_FUNC is a mark for all extern functions that are not to be
@* exported to outside modules.
@@ LUAI_DATA is a mark for all extern (const) variables that are not to
@* be exported to outside modules.
@@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables
@* that are not to be exported to outside modules (LUAI_DDEF for
@* definitions and LUAI_DDEC for declarations).
** CHANGE them if you need to mark them in some special way. Elf/gcc
** (versions 3.2 and later) mark them as "hidden" to optimize access
** when Lua is compiled as a shared library.
*/
#if defined(luaall_c)
#define LUAI_FUNC static
#define LUAI_DATA /* empty */
#elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
defined(__ELF__)
** when Lua is compiled as a shared library. Not all elf targets support
** this attribute. Unfortunately, gcc does not offer a way to check
** whether the target offers that support, and those without support
** give a warning about it. To avoid these warnings, change to the
** default definition.
*/
#if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
defined(__ELF__) /* { */
#define LUAI_FUNC __attribute__((visibility("hidden"))) extern
#define LUAI_DATA LUAI_FUNC
#define LUAI_DDEC LUAI_FUNC
#define LUAI_DDEF /* empty */
#else
#else /* }{ */
#define LUAI_FUNC extern
#define LUAI_DATA extern
#endif
#define LUAI_DDEC extern
#define LUAI_DDEF /* empty */
#endif /* } */
@ -220,175 +205,101 @@
/*
** {==================================================================
** Stand-alone configuration
** ===================================================================
*/
#if defined(lua_c) || defined(luaall_c)
/*
@@ lua_stdin_is_tty detects whether the standard input is a 'tty' (that
@* is, whether we're running lua interactively).
** CHANGE it if you have a better definition for non-POSIX/non-Windows
** systems.
@@ luai_writestring/luai_writeline define how 'print' prints its results.
** They are only used in libraries and the stand-alone program. (The #if
** avoids including 'stdio.h' everywhere.)
*/
#if defined(LUA_USE_ISATTY)
#include <unistd.h>
#define lua_stdin_is_tty() isatty(0)
#elif defined(LUA_WIN)
#include <io.h>
#if defined(LUA_LIB) || defined(lua_c)
#include <stdio.h>
#define lua_stdin_is_tty() _isatty(_fileno(stdin))
#else
#define lua_stdin_is_tty() 1 /* assume stdin is a tty */
#define luai_writestring(s,l) fwrite((s), sizeof(char), (l), stdout)
#define luai_writeline() (luai_writestring("\n", 1), fflush(stdout))
#endif
/*
@@ LUA_PROMPT is the default prompt used by stand-alone Lua.
@@ LUA_PROMPT2 is the default continuation prompt used by stand-alone Lua.
** CHANGE them if you want different prompts. (You can also change the
** prompts dynamically, assigning to globals _PROMPT/_PROMPT2.)
@@ luai_writestringerror defines how to print error messages.
** (A format string with one argument is enough for Lua...)
*/
#define LUA_PROMPT "> "
#define LUA_PROMPT2 ">> "
#define luai_writestringerror(s,p) \
(fprintf(stderr, (s), (p)), fflush(stderr))
/*
@@ LUA_PROGNAME is the default name for the stand-alone Lua program.
** CHANGE it if your stand-alone interpreter has a different name and
** your system is not able to detect that name automatically.
*/
#define LUA_PROGNAME "lua"
/*
@@ LUA_MAXINPUT is the maximum length for an input line in the
@* stand-alone interpreter.
** CHANGE it if you need longer lines.
*/
#define LUA_MAXINPUT 512
/*
@@ lua_readline defines how to show a prompt and then read a line from
@* the standard input.
@@ lua_saveline defines how to "save" a read line in a "history".
@@ lua_freeline defines how to free a line read by lua_readline.
** CHANGE them if you want to improve this functionality (e.g., by using
** GNU readline and history facilities).
** {==================================================================
** Compatibility with previous versions
** ===================================================================
*/
#if defined(LUA_USE_READLINE)
#include <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>
#define lua_readline(L,b,p) ((void)L, ((b)=readline(p)) != NULL)
#define lua_saveline(L,idx) \
if (lua_strlen(L,idx) > 0) /* non-empty line? */ \
add_history(lua_tostring(L, idx)); /* add it to history */
#define lua_freeline(L,b) ((void)L, free(b))
#else
#define lua_readline(L,b,p) \
((void)L, fputs(p, stdout), fflush(stdout), /* show prompt */ \
fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */
#define lua_saveline(L,idx) { (void)L; (void)idx; }
#define lua_freeline(L,b) { (void)L; (void)b; }
#endif
#endif
/* }================================================================== */
/*
@@ LUAI_GCPAUSE defines the default pause between garbage-collector cycles
@* as a percentage.
** CHANGE it if you want the GC to run faster or slower (higher values
** mean larger pauses which mean slower collection.) You can also change
** this value dynamically.
@@ LUA_COMPAT_ALL controls all compatibility options.
** You can define it to get all options, or change specific options
** to fit your specific needs.
*/
#define LUAI_GCPAUSE 200 /* 200% (wait memory to double before next GC) */
#if defined(LUA_COMPAT_ALL) /* { */
/*
@@ LUAI_GCMUL defines the default speed of garbage collection relative to
@* memory allocation as a percentage.
** CHANGE it if you want to change the granularity of the garbage
** collection. (Higher values mean coarser collections. 0 represents
** infinity, where each step performs a full collection.) You can also
** change this value dynamically.
@@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'.
** You can replace it with 'table.unpack'.
*/
#define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */
#define LUA_COMPAT_UNPACK
/*
@@ LUA_COMPAT_GETN controls compatibility with old getn behavior.
** CHANGE it (define it) if you want exact compatibility with the
** behavior of setn/getn in Lua 5.0.
@@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'.
** You can replace it with 'package.searchers'.
*/
#undef LUA_COMPAT_GETN
#define LUA_COMPAT_LOADERS
/*
@@ LUA_COMPAT_LOADLIB controls compatibility about global loadlib.
** CHANGE it to undefined as soon as you do not need a global 'loadlib'
** function (the function is still available as 'package.loadlib').
@@ macro 'lua_cpcall' emulates deprecated function lua_cpcall.
** You can call your C function directly (with light C functions).
*/
#undef LUA_COMPAT_LOADLIB
#define lua_cpcall(L,f,u) \
(lua_pushcfunction(L, (f)), \
lua_pushlightuserdata(L,(u)), \
lua_pcall(L,1,0,0))
/*
@@ LUA_COMPAT_VARARG controls compatibility with old vararg feature.
** CHANGE it to undefined as soon as your programs use only '...' to
** access vararg parameters (instead of the old 'arg' table).
*/
#define LUA_COMPAT_VARARG
/*
@@ LUA_COMPAT_MOD controls compatibility with old math.mod function.
** CHANGE it to undefined as soon as your programs use 'math.fmod' or
** the new '%' operator instead of 'math.mod'.
@@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library.
** You can rewrite 'log10(x)' as 'log(x, 10)'.
*/
#define LUA_COMPAT_MOD
#define LUA_COMPAT_LOG10
/*
@@ LUA_COMPAT_LSTR controls compatibility with old long string nesting
@* facility.
** CHANGE it to 2 if you want the old behaviour, or undefine it to turn
** off the advisory error when nesting [[...]].
@@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base
** library. You can rewrite 'loadstring(s)' as 'load(s)'.
*/
#define LUA_COMPAT_LSTR 1
#define LUA_COMPAT_LOADSTRING
/*
@@ LUA_COMPAT_GFIND controls compatibility with old 'string.gfind' name.
** CHANGE it to undefined as soon as you rename 'string.gfind' to
** 'string.gmatch'.
@@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library.
*/
#define LUA_COMPAT_GFIND
#define LUA_COMPAT_MAXN
/*
@@ LUA_COMPAT_OPENLIB controls compatibility with old 'luaL_openlib'
@* behavior.
** CHANGE it to undefined as soon as you replace to 'luaL_register'
** your uses of 'luaL_openlib'
@@ The following macros supply trivial compatibility for some
** changes in the API. The macros themselves document how to
** change your code to avoid using them.
*/
#define LUA_COMPAT_OPENLIB
#define lua_strlen(L,i) lua_rawlen(L, (i))
#define lua_objlen(L,i) lua_rawlen(L, (i))
#define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ)
#define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT)
/*
@@ luai_apicheck is the assert macro used by the Lua-C API.
** CHANGE luai_apicheck if you want Lua to perform some checks in the
** parameters it gets from API calls. This may slow down the interpreter
** a bit, but may be quite useful when debugging C code that interfaces
** with Lua. A useful redefinition is to use assert.h.
@@ LUA_COMPAT_MODULE controls compatibility with previous
** module functions 'module' (Lua) and 'luaL_register' (C).
*/
#if defined(LUA_USE_APICHECK)
#include <assert.h>
#define luai_apicheck(L,o) { (void)L; assert(o); }
#else
#define luai_apicheck(L,o) { (void)L; }
#endif
#define LUA_COMPAT_MODULE
#endif /* } */
/* }================================================================== */
/*
@ -397,107 +308,62 @@
** your machine. Probably you do not need to change this.
*/
/* avoid overflows in comparison */
#if INT_MAX-20 < 32760
#if INT_MAX-20 < 32760 /* { */
#define LUAI_BITSINT 16
#elif INT_MAX > 2147483640L
#elif INT_MAX > 2147483640L /* }{ */
/* int has at least 32 bits */
#define LUAI_BITSINT 32
#else
#else /* }{ */
#error "you must define LUA_BITSINT with number of bits in an integer"
#endif
#endif /* } */
/*
@@ LUAI_UINT32 is an unsigned integer with at least 32 bits.
@@ LUAI_INT32 is an signed integer with at least 32 bits.
@@ LUA_INT32 is an signed integer with exactly 32 bits.
@@ LUAI_UMEM is an unsigned integer big enough to count the total
@* memory used by Lua.
@@ LUAI_MEM is a signed integer big enough to count the total memory
@* used by Lua.
** CHANGE here if for some weird reason the default definitions are not
** good enough for your machine. (The definitions in the 'else'
** part always works, but may waste space on machines with 64-bit
** longs.) Probably you do not need to change this.
** good enough for your machine. Probably you do not need to change
** this.
*/
#if LUAI_BITSINT >= 32
#define LUAI_UINT32 unsigned int
#define LUAI_INT32 int
#define LUAI_MAXINT32 INT_MAX
#if LUAI_BITSINT >= 32 /* { */
#define LUA_INT32 int
#define LUAI_UMEM size_t
#define LUAI_MEM ptrdiff_t
#else
#else /* }{ */
/* 16-bit ints */
#define LUAI_UINT32 unsigned long
#define LUAI_INT32 long
#define LUAI_MAXINT32 LONG_MAX
#define LUA_INT32 long
#define LUAI_UMEM unsigned long
#define LUAI_MEM long
#endif
/*
@@ LUAI_MAXCALLS limits the number of nested calls.
** CHANGE it if you need really deep recursive calls. This limit is
** arbitrary; its only purpose is to stop infinite recursion before
** exhausting memory.
*/
#define LUAI_MAXCALLS 20000
/*
@@ LUAI_MAXCSTACK limits the number of Lua stack slots that a C function
@* can use.
** CHANGE it if you need lots of (Lua) stack space for your C
** functions. This limit is arbitrary; its only purpose is to stop C
** functions to consume unlimited stack space. (must be smaller than
** -LUA_REGISTRYINDEX)
*/
#define LUAI_MAXCSTACK 8000
#endif /* } */
/*
** {==================================================================
** CHANGE (to smaller values) the following definitions if your system
** has a small C stack. (Or you may want to change them to larger
** values if your system has a large C stack and these limits are
** too rigid for you.) Some of these constants control the size of
** stack-allocated arrays used by the compiler or the interpreter, while
** others limit the maximum number of recursive calls that the compiler
** or the interpreter can perform. Values too large may cause a C stack
** overflow for some forms of deep constructs.
** ===================================================================
@@ LUAI_MAXSTACK limits the size of the Lua stack.
** CHANGE it if you need a different limit. This limit is arbitrary;
** its only purpose is to stop Lua to consume unlimited stack
** space (and to reserve some numbers for pseudo-indices).
*/
#if LUAI_BITSINT >= 32
#define LUAI_MAXSTACK 1000000
#else
#define LUAI_MAXSTACK 15000
#endif
/*
@@ LUAI_MAXCCALLS is the maximum depth for nested C calls (short) and
@* syntactical nested non-terminals in a program.
*/
#define LUAI_MAXCCALLS 200
/*
@@ LUAI_MAXVARS is the maximum number of local variables per function
@* (must be smaller than 250).
*/
#define LUAI_MAXVARS 200
/* reserve some space for error handling */
#define LUAI_FIRSTPSEUDOIDX (-LUAI_MAXSTACK - 1000)
/*
@@ LUAI_MAXUPVALUES is the maximum number of upvalues per function
@* (must be smaller than 250).
*/
#define LUAI_MAXUPVALUES 60
/*
@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
** CHANGE it if it uses too much C-stack space.
*/
#define LUAL_BUFFERSIZE BUFSIZ
/* }================================================================== */
@ -525,241 +391,128 @@
@@ LUA_NUMBER_FMT is the format for writing numbers.
@@ lua_number2str converts a number to a string.
@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion.
@@ lua_str2number converts a string to a number.
*/
#define LUA_NUMBER_SCAN "%lf"
#define LUA_NUMBER_FMT "%.14g"
#ifdef WIN32 //More specifically MSVC, but did not work, either way only MSVC is used in windows build
#define lua_number2str(s,n) sprintf_s((s),32, LUA_NUMBER_FMT, (n))
#else
#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
#endif
#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */
#define lua_str2number(s,p) strtod((s), (p))
/*
@@ The luai_num* macros define the primitive operations over numbers.
@@ lua_str2number converts a decimal numeric string to a number.
@@ lua_strx2number converts an hexadecimal numeric string to a number.
** In C99, 'strtod' do both conversions. C89, however, has no function
** to convert floating hexadecimal strings to numbers. For these
** systems, you can leave 'lua_strx2number' undefined and Lua will
** provide its own implementation.
*/
#if defined(LUA_CORE)
#include <math.h>
#define luai_numadd(a,b) ((a)+(b))
#define luai_numsub(a,b) ((a)-(b))
#define luai_nummul(a,b) ((a)*(b))
#define luai_numdiv(a,b) ((a)/(b))
#define luai_nummod(a,b) ((a) - floor((a)/(b))*(b))
#define luai_numpow(a,b) (pow(a,b))
#define luai_numunm(a) (-(a))
#define luai_numeq(a,b) ((a)==(b))
#define luai_numlt(a,b) ((a)<(b))
#define luai_numle(a,b) ((a)<=(b))
#define luai_numisnan(a) (!luai_numeq((a), (a)))
#define lua_str2number(s,p) strtod((s), (p))
#if defined(LUA_USE_STRTODHEX)
#define lua_strx2number(s,p) strtod((s), (p))
#endif
/*
@@ lua_number2int is a macro to convert lua_Number to int.
@@ lua_number2integer is a macro to convert lua_Number to lua_Integer.
** CHANGE them if you know a faster way to convert a lua_Number to
** int (with any rounding method and without throwing errors) in your
** system. In Pentium machines, a naive typecast from double to int
** in C is extremely slow, so any alternative is worth trying.
@@ The luai_num* macros define the primitive operations over numbers.
*/
/* On a Pentium, resort to a trick */
#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \
(defined(__i386) || defined (_M_IX86) || defined(__i386__))
/* On a Microsoft compiler, use assembler */
#if defined(_MSC_VER)
#define lua_number2int(i,d) __asm fld d __asm fistp i
#define lua_number2integer(i,n) lua_number2int(i, n)
/* the next trick should work on any Pentium, but sometimes clashes
with a DirectX idiosyncrasy */
#else
union luai_Cast { double l_d; long l_l; };
#define lua_number2int(i,d) \
{ volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; }
#define lua_number2integer(i,n) lua_number2int(i, n)
/* the following operations need the math library */
#if defined(lobject_c) || defined(lvm_c)
#include <math.h>
#define luai_nummod(L,a,b) ((a) - floor((a)/(b))*(b))
#define luai_numpow(L,a,b) (pow(a,b))
#endif
/* this option always works, but may be slow */
#else
#define lua_number2int(i,d) ((i)=(int)(d))
#define lua_number2integer(i,d) ((i)=(lua_Integer)(d))
/* these are quite standard operations */
#if defined(LUA_CORE)
#define luai_numadd(L,a,b) ((a)+(b))
#define luai_numsub(L,a,b) ((a)-(b))
#define luai_nummul(L,a,b) ((a)*(b))
#define luai_numdiv(L,a,b) ((a)/(b))
#define luai_numunm(L,a) (-(a))
#define luai_numeq(a,b) ((a)==(b))
#define luai_numlt(L,a,b) ((a)<(b))
#define luai_numle(L,a,b) ((a)<=(b))
#define luai_numisnan(L,a) (!luai_numeq((a), (a)))
#endif
/* }================================================================== */
/*
@@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment.
** CHANGE it if your system requires alignments larger than double. (For
** instance, if your system supports long doubles and they must be
** aligned in 16-byte boundaries, then you should add long double in the
** union.) Probably you do not need to change this.
@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger.
** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
** machines, ptrdiff_t gives a good choice between int or long.)
*/
#define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; }
#define LUA_INTEGER ptrdiff_t
/*
@@ LUAI_THROW/LUAI_TRY define how Lua does exception handling.
** CHANGE them if you prefer to use longjmp/setjmp even with C++
** or if want/don't to use _longjmp/_setjmp instead of regular
** longjmp/setjmp. By default, Lua handles errors with exceptions when
** compiling as C++ code, with _longjmp/_setjmp when asked to use them,
** and with longjmp/setjmp otherwise.
@@ LUA_UNSIGNED is the integral type used by lua_pushunsigned/lua_tounsigned.
** It must have at least 32 bits.
*/
#if defined(__cplusplus)
/* C++ exceptions */
#define LUAI_THROW(L,c) throw(c)
#define LUAI_TRY(L,c,a) try { a } catch(...) \
{ if ((c)->status == 0) (c)->status = -1; }
#define luai_jmpbuf int /* dummy variable */
#define LUA_UNSIGNED unsigned LUA_INT32
#elif defined(LUA_USE_ULONGJMP)
/* in Unix, try _longjmp/_setjmp (more efficient) */
#define LUAI_THROW(L,c) _longjmp((c)->b, 1)
#define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a }
#define luai_jmpbuf jmp_buf
#else
/* default handling with long jumps */
#define LUAI_THROW(L,c) longjmp((c)->b, 1)
#define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a }
#define luai_jmpbuf jmp_buf
#endif
#if defined(LUA_CORE) /* { */
#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */
/*
@@ LUA_MAXCAPTURES is the maximum number of captures that a pattern
@* can do during pattern-matching.
** CHANGE it if you need more captures. This limit is arbitrary.
*/
#define LUA_MAXCAPTURES 32
/*
@@ lua_tmpnam is the function that the OS library uses to create a
@* temporary name.
@@ LUA_TMPNAMBUFSIZE is the maximum size of a name created by lua_tmpnam.
** CHANGE them if you have an alternative to tmpnam (which is considered
** insecure) or if you want the original tmpnam anyway. By default, Lua
** uses tmpnam except when POSIX is available, where it uses mkstemp.
*/
#if defined(loslib_c) || defined(luaall_c)
#if defined(LUA_USE_MKSTEMP)
#include <unistd.h>
#define LUA_TMPNAMBUFSIZE 32
#define lua_tmpnam(b,e) { \
strcpy(b, "/tmp/lua_XXXXXX"); \
e = mkstemp(b); \
if (e != -1) close(e); \
e = (e == -1); }
/* On a Microsoft compiler on a Pentium, use assembler to avoid clashes
with a DirectX idiosyncrasy */
#if defined(LUA_WIN) && defined(_MSC_VER) && defined(_M_IX86) /* { */
#else
#define LUA_TMPNAMBUFSIZE L_tmpnam
#define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); }
#endif
#define MS_ASMTRICK
#endif
#else /* }{ */
/* the next definition uses a trick that should work on any machine
using IEEE754 with a 32-bit integer type */
#define LUA_IEEE754TRICK
/*
@@ lua_popen spawns a new process connected to the current one through
@* the file streams.
** CHANGE it if you have a way to implement it in your system.
@@ LUA_IEEEENDIAN is the endianness of doubles in your machine
** (0 for little endian, 1 for big endian); if not defined, Lua will
** check it dynamically.
*/
#if defined(LUA_USE_POPEN)
#define lua_popen(L,c,m) ((void)L, fflush(NULL), popen(c,m))
#define lua_pclose(L,file) ((void)L, (pclose(file) != -1))
#elif defined(LUA_WIN)
#define lua_popen(L,c,m) ((void)L, _popen(c,m))
#define lua_pclose(L,file) ((void)L, (_pclose(file) != -1))
#else
#define lua_popen(L,c,m) ((void)((void)c, m), \
luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0)
#define lua_pclose(L,file) ((void)((void)L, file), 0)
/* check for known architectures */
#if defined(__i386__) || defined(__i386) || defined(__X86__) || \
defined (__x86_64)
#define LUA_IEEEENDIAN 0
#elif defined(__POWERPC__) || defined(__ppc__)
#define LUA_IEEEENDIAN 1
#endif
/*
@@ LUA_DL_* define which dynamic-library system Lua should use.
** CHANGE here if Lua has problems choosing the appropriate
** dynamic-library system for your platform (either Windows' DLL, Mac's
** dyld, or Unix's dlopen). If your system is some kind of Unix, there
** is a good chance that it has dlopen, so LUA_DL_DLOPEN will work for
** it. To use dlopen you also need to adapt the src/Makefile (probably
** adding -ldl to the linker options), so Lua does not select it
** automatically. (When you change the makefile to add -ldl, you must
** also add -DLUA_USE_DLOPEN.)
** If you do not want any kind of dynamic library, undefine all these
** options.
** By default, _WIN32 gets LUA_DL_DLL and MAC OS X gets LUA_DL_DYLD.
*/
#if defined(LUA_USE_DLOPEN)
#define LUA_DL_DLOPEN
#endif
#endif /* } */
#if defined(LUA_WIN)
#define LUA_DL_DLL
#endif
#endif /* } */
#endif /* } */
/*
@@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State
@* (the data goes just *before* the lua_State pointer).
** CHANGE (define) this if you really need that. This value must be
** a multiple of the maximum alignment required for your machine.
*/
#define LUAI_EXTRASPACE 0
/*
@@ luai_userstate* allow user-specific actions on threads.
** CHANGE them if you defined LUAI_EXTRASPACE and need to do something
** extra when a thread is created/deleted/resumed/yielded.
*/
#define luai_userstateopen(L) ((void)L)
#define luai_userstateclose(L) ((void)L)
#define luai_userstatethread(L,L1) ((void)L)
#define luai_userstatefree(L) ((void)L)
#define luai_userstateresume(L,n) ((void)L)
#define luai_userstateyield(L,n) ((void)L)
/* }================================================================== */
/*
@@ LUA_INTFRMLEN is the length modifier for integer conversions
@* in 'string.format'.
@@ LUA_INTFRM_T is the integer type correspoding to the previous length
@* modifier.
** CHANGE them if your system supports long long or does not support long.
@@ LUA_NANTRICK_LE/LUA_NANTRICK_BE controls the use of a trick to
** pack all types into a single double value, using NaN values to
** represent non-number values. The trick only works on 32-bit machines
** (ints and pointers are 32-bit values) with numbers represented as
** IEEE 754-2008 doubles with conventional endianess (12345678 or
** 87654321), in CPUs that do not produce signaling NaN values (all NaNs
** are quiet).
*/
#if defined(LUA_CORE) && \
defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */
#if defined(LUA_USELONGLONG)
/* little-endian architectures that satisfy those conditions */
#if defined(__i386__) || defined(__i386) || defined(__X86__) || \
defined(_M_IX86)
#define LUA_INTFRMLEN "ll"
#define LUA_INTFRM_T long long
#define LUA_NANTRICK_LE
#else
#endif
#define LUA_INTFRMLEN "l"
#define LUA_INTFRM_T long
#endif /* } */
#endif

26
depends/lua/include/lualib.h
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@ -1,5 +1,5 @@
/*
** $Id: lualib.h,v 1.36.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lualib.h,v 1.43 2011/12/08 12:11:37 roberto Exp $
** Lua standard libraries
** See Copyright Notice in lua.h
*/
@ -11,33 +11,35 @@
#include "lua.h"
/* Key to file-handle type */
#define LUA_FILEHANDLE "FILE*"
LUAMOD_API int (luaopen_base) (lua_State *L);
#define LUA_COLIBNAME "coroutine"
LUALIB_API int (luaopen_base) (lua_State *L);
LUAMOD_API int (luaopen_coroutine) (lua_State *L);
#define LUA_TABLIBNAME "table"
LUALIB_API int (luaopen_table) (lua_State *L);
LUAMOD_API int (luaopen_table) (lua_State *L);
#define LUA_IOLIBNAME "io"
LUALIB_API int (luaopen_io) (lua_State *L);
LUAMOD_API int (luaopen_io) (lua_State *L);
#define LUA_OSLIBNAME "os"
LUALIB_API int (luaopen_os) (lua_State *L);
LUAMOD_API int (luaopen_os) (lua_State *L);
#define LUA_STRLIBNAME "string"
LUALIB_API int (luaopen_string) (lua_State *L);
LUAMOD_API int (luaopen_string) (lua_State *L);
#define LUA_BITLIBNAME "bit32"
LUAMOD_API int (luaopen_bit32) (lua_State *L);
#define LUA_MATHLIBNAME "math"
LUALIB_API int (luaopen_math) (lua_State *L);
LUAMOD_API int (luaopen_math) (lua_State *L);
#define LUA_DBLIBNAME "debug"
LUALIB_API int (luaopen_debug) (lua_State *L);
LUAMOD_API int (luaopen_debug) (lua_State *L);
#define LUA_LOADLIBNAME "package"
LUALIB_API int (luaopen_package) (lua_State *L);
LUAMOD_API int (luaopen_package) (lua_State *L);
/* open all previous libraries */
@ -45,7 +47,7 @@ LUALIB_API void (luaL_openlibs) (lua_State *L);
#ifndef lua_assert
#if !defined(lua_assert)
#define lua_assert(x) ((void)0)
#endif

20
depends/lua/include/lundump.h
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@ -1,5 +1,5 @@
/*
** $Id: lundump.h,v 1.37.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lundump.h,v 1.44 2011/05/06 13:35:17 lhf Exp $
** load precompiled Lua chunks
** See Copyright Notice in lua.h
*/
@ -14,23 +14,15 @@
LUAI_FUNC Proto* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name);
/* make header; from lundump.c */
LUAI_FUNC void luaU_header (char* h);
LUAI_FUNC void luaU_header (lu_byte* h);
/* dump one chunk; from ldump.c */
LUAI_FUNC int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip);
#ifdef luac_c
/* print one chunk; from print.c */
LUAI_FUNC void luaU_print (const Proto* f, int full);
#endif
/* for header of binary files -- this is Lua 5.1 */
#define LUAC_VERSION 0x51
/* for header of binary files -- this is the official format */
#define LUAC_FORMAT 0
/* data to catch conversion errors */
#define LUAC_TAIL "\x19\x93\r\n\x1a\n"
/* size of header of binary files */
#define LUAC_HEADERSIZE 12
/* size in bytes of header of binary files */
#define LUAC_HEADERSIZE (sizeof(LUA_SIGNATURE)-sizeof(char)+2+6+sizeof(LUAC_TAIL)-sizeof(char))
#endif

27
depends/lua/include/lvm.h
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@ -1,5 +1,5 @@
/*
** $Id: lvm.h,v 2.5.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lvm.h,v 2.17 2011/05/31 18:27:56 roberto Exp $
** Lua virtual machine
** See Copyright Notice in lua.h
*/
@ -13,24 +13,33 @@
#include "ltm.h"
#define tostring(L,o) ((ttype(o) == LUA_TSTRING) || (luaV_tostring(L, o)))
#define tostring(L,o) (ttisstring(o) || (luaV_tostring(L, o)))
#define tonumber(o,n) (ttype(o) == LUA_TNUMBER || \
(((o) = luaV_tonumber(o,n)) != NULL))
#define tonumber(o,n) (ttisnumber(o) || (((o) = luaV_tonumber(o,n)) != NULL))
#define equalobj(L,o1,o2) \
(ttype(o1) == ttype(o2) && luaV_equalval(L, o1, o2))
#define equalobj(L,o1,o2) (ttisequal(o1, o2) && luaV_equalobj_(L, o1, o2))
#define luaV_rawequalobj(t1,t2) \
(ttisequal(t1,t2) && luaV_equalobj_(NULL,t1,t2))
/* not to called directly */
LUAI_FUNC int luaV_equalobj_ (lua_State *L, const TValue *t1, const TValue *t2);
LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r);
LUAI_FUNC int luaV_equalval (lua_State *L, const TValue *t1, const TValue *t2);
LUAI_FUNC int luaV_lessequal (lua_State *L, const TValue *l, const TValue *r);
LUAI_FUNC const TValue *luaV_tonumber (const TValue *obj, TValue *n);
LUAI_FUNC int luaV_tostring (lua_State *L, StkId obj);
LUAI_FUNC void luaV_gettable (lua_State *L, const TValue *t, TValue *key,
StkId val);
LUAI_FUNC void luaV_settable (lua_State *L, const TValue *t, TValue *key,
StkId val);
LUAI_FUNC void luaV_execute (lua_State *L, int nexeccalls);
LUAI_FUNC void luaV_concat (lua_State *L, int total, int last);
LUAI_FUNC void luaV_finishOp (lua_State *L);
LUAI_FUNC void luaV_execute (lua_State *L);
LUAI_FUNC void luaV_concat (lua_State *L, int total);
LUAI_FUNC void luaV_arith (lua_State *L, StkId ra, const TValue *rb,
const TValue *rc, TMS op);
LUAI_FUNC void luaV_objlen (lua_State *L, StkId ra, const TValue *rb);
#endif

8
depends/lua/include/lzio.h
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@ -1,5 +1,5 @@
/*
** $Id: lzio.h,v 1.21.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lzio.h,v 1.26 2011/07/15 12:48:03 roberto Exp $
** Buffered streams
** See Copyright Notice in lua.h
*/
@ -17,9 +17,8 @@
typedef struct Zio ZIO;
#define char2int(c) cast(int, cast(unsigned char, (c)))
#define zgetc(z) (((z)->n--)>0 ? cast_uchar(*(z)->p++) : luaZ_fill(z))
#define zgetc(z) (((z)->n--)>0 ? char2int(*(z)->p++) : luaZ_fill(z))
typedef struct Mbuffer {
char *buffer;
@ -47,7 +46,6 @@ LUAI_FUNC char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n);
LUAI_FUNC void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader,
void *data);
LUAI_FUNC size_t luaZ_read (ZIO* z, void* b, size_t n); /* read next n bytes */
LUAI_FUNC int luaZ_lookahead (ZIO *z);
@ -56,7 +54,7 @@ LUAI_FUNC int luaZ_lookahead (ZIO *z);
struct Zio {
size_t n; /* bytes still unread */
const char *p; /* current position in buffer */
lua_Reader reader;
lua_Reader reader; /* reader function */
void* data; /* additional data */
lua_State *L; /* Lua state (for reader) */
};

181
depends/lua/src/bit.c
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@ -1,181 +0,0 @@
/*
** Lua BitOp -- a bit operations library for Lua 5.1.
** http://bitop.luajit.org/
**
** Copyright (C) 2008-2009 Mike Pall. All rights reserved.
**
** Permission is hereby granted, free of charge, to any person obtaining
** a copy of this software and associated documentation files (the
** "Software"), to deal in the Software without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Software, and to
** permit persons to whom the Software is furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be
** included in all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**
** [ MIT license: http://www.opensource.org/licenses/mit-license.php ]
*/
#include "bit.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _MSC_VER
/* MSVC is stuck in the last century and doesn't have C99's stdint.h. */
typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int64 uint64_t;
#else
#include <stdint.h>
#endif
typedef int32_t SBits;
typedef uint32_t UBits;
typedef union {
lua_Number n;
#ifdef LUA_NUMBER_DOUBLE
uint64_t b;
#else
UBits b;
#endif
} BitNum;
/* Convert argument to bit type. */
static UBits barg(lua_State *L, int idx)
{
BitNum bn;
UBits b;
bn.n = lua_tonumber(L, idx);
#if defined(LUA_NUMBER_DOUBLE)
bn.n += 6755399441055744.0; /* 2^52+2^51 */
#ifdef SWAPPED_DOUBLE
b = (UBits)(bn.b >> 32);
#else
b = (UBits)bn.b;
#endif
#elif defined(LUA_NUMBER_INT) || defined(LUA_NUMBER_LONG) || \
defined(LUA_NUMBER_LONGLONG) || defined(LUA_NUMBER_LONG_LONG) || \
defined(LUA_NUMBER_LLONG)
if (sizeof(UBits) == sizeof(lua_Number))
b = bn.b;
else
b = (UBits)(SBits)bn.n;
#elif defined(LUA_NUMBER_FLOAT)
#error "A 'float' lua_Number type is incompatible with this library"
#else
#error "Unknown number type, check LUA_NUMBER_* in luaconf.h"
#endif
if (b == 0 && !lua_isnumber(L, idx))
luaL_typerror(L, idx, "number");
return b;
}
/* Return bit type. */
#define BRET(b) lua_pushnumber(L, (lua_Number)(SBits)(b)); return 1;
static int bit_tobit(lua_State *L) { BRET(barg(L, 1)) }
static int bit_bnot(lua_State *L) { BRET(~barg(L, 1)) }
#define BIT_OP(func, opr) \
static int func(lua_State *L) { int i; UBits b = barg(L, 1); \
for (i = lua_gettop(L); i > 1; i--) b opr barg(L, i); BRET(b) }
BIT_OP(bit_band, &=)
BIT_OP(bit_bor, |=)
BIT_OP(bit_bxor, ^=)
#define bshl(b, n) (b << n)
#define bshr(b, n) (b >> n)
#define bsar(b, n) ((SBits)b >> n)
#define brol(b, n) ((b << n) | (b >> (32-n)))
#define bror(b, n) ((b << (32-n)) | (b >> n))
#define BIT_SH(func, fn) \
static int func(lua_State *L) { \
UBits b = barg(L, 1); UBits n = barg(L, 2) & 31; BRET(fn(b, n)) }
BIT_SH(bit_lshift, bshl)
BIT_SH(bit_rshift, bshr)
BIT_SH(bit_arshift, bsar)
BIT_SH(bit_rol, brol)
BIT_SH(bit_ror, bror)
static int bit_bswap(lua_State *L)
{
UBits b = barg(L, 1);
b = (b >> 24) | ((b >> 8) & 0xff00) | ((b & 0xff00) << 8) | (b << 24);
BRET(b)
}
static int bit_tohex(lua_State *L)
{
UBits b = barg(L, 1);
SBits n = lua_isnone(L, 2) ? 8 : (SBits)barg(L, 2);
const char *hexdigits = "0123456789abcdef";
char buf[8];
int i;
if (n < 0) { n = -n; hexdigits = "0123456789ABCDEF"; }
if (n > 8) n = 8;
for (i = (int)n; --i >= 0; ) { buf[i] = hexdigits[b & 15]; b >>= 4; }
lua_pushlstring(L, buf, (size_t)n);
return 1;
}
static const struct luaL_Reg bit_funcs[] = {
{ "tobit", bit_tobit },
{ "bnot", bit_bnot },
{ "band", bit_band },
{ "bor", bit_bor },
{ "bxor", bit_bxor },
{ "lshift", bit_lshift },
{ "rshift", bit_rshift },
{ "arshift", bit_arshift },
{ "rol", bit_rol },
{ "ror", bit_ror },
{ "bswap", bit_bswap },
{ "tohex", bit_tohex },
{ NULL, NULL }
};
/* Signed right-shifts are implementation-defined per C89/C99.
** But the de facto standard are arithmetic right-shifts on two's
** complement CPUs. This behaviour is required here, so test for it.
*/
#define BAD_SAR (bsar(-8, 2) != (SBits)-2)
LUALIB_API int luaopen_bit(lua_State *L)
{
UBits b;
lua_pushnumber(L, (lua_Number)1437217655L);
b = barg(L, -1);
if (b != (UBits)1437217655L || BAD_SAR) { /* Perform a simple self-test. */
const char *msg = "compiled with incompatible luaconf.h";
#ifdef LUA_NUMBER_DOUBLE
#ifdef _WIN32
if (b == (UBits)1610612736L)
msg = "use D3DCREATE_FPU_PRESERVE with DirectX";
#endif
if (b == (UBits)1127743488L)
msg = "not compiled with SWAPPED_DOUBLE";
#endif
if (BAD_SAR)
msg = "arithmetic right-shift broken";
luaL_error(L, "bit library self-test failed (%s)", msg);
}
luaL_register(L, "bit", bit_funcs);
return 1;
}
#ifdef __cplusplus
}
#endif

804
depends/lua/src/lapi.c
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depends/lua/src/lauxlib.c
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573
depends/lua/src/lbaselib.c
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@ -1,5 +1,5 @@
/*
** $Id: lbaselib.c,v 1.191.1.6 2008/02/14 16:46:22 roberto Exp $
** $Id: lbaselib.c,v 1.273 2011/11/30 13:03:24 roberto Exp $
** Basic library
** See Copyright Notice in lua.h
*/
@ -20,60 +20,68 @@
#include "lualib.h"
/*
** If your system does not support `stdout', you can just remove this function.
** If you need, you can define your own `print' function, following this
** model but changing `fputs' to put the strings at a proper place
** (a console window or a log file, for instance).
*/
static int luaB_print (lua_State *L) {
int n = lua_gettop(L); /* number of arguments */
int i;
lua_getglobal(L, "tostring");
for (i=1; i<=n; i++) {
const char *s;
size_t l;
lua_pushvalue(L, -1); /* function to be called */
lua_pushvalue(L, i); /* value to print */
lua_call(L, 1, 1);
s = lua_tostring(L, -1); /* get result */
s = lua_tolstring(L, -1, &l); /* get result */
if (s == NULL)
return luaL_error(L, LUA_QL("tostring") " must return a string to "
LUA_QL("print"));
if (i>1) fputs("\t", stdout);
fputs(s, stdout);
return luaL_error(L,
LUA_QL("tostring") " must return a string to " LUA_QL("print"));
if (i>1) luai_writestring("\t", 1);
luai_writestring(s, l);
lua_pop(L, 1); /* pop result */
}
fputs("\n", stdout);
luai_writeline();
return 0;
}
#define SPACECHARS " \f\n\r\t\v"
static int luaB_tonumber (lua_State *L) {
int base = luaL_optint(L, 2, 10);
if (base == 10) { /* standard conversion */
luaL_checkany(L, 1);
if (lua_isnumber(L, 1)) {
lua_pushnumber(L, lua_tonumber(L, 1));
if (lua_isnoneornil(L, 2)) { /* standard conversion */
int isnum;
lua_Number n = lua_tonumberx(L, 1, &isnum);
if (isnum) {
lua_pushnumber(L, n);
return 1;
}
} /* else not a number; must be something */
luaL_checkany(L, 1);
}
else {
const char *s1 = luaL_checkstring(L, 1);
char *s2;
unsigned long n;
size_t l;
const char *s = luaL_checklstring(L, 1, &l);
const char *e = s + l; /* end point for 's' */
int base = luaL_checkint(L, 2);
int neg = 0;
luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range");
n = strtoul(s1, &s2, base);
if (s1 != s2) { /* at least one valid digit? */
while (isspace((unsigned char)(*s2))) s2++; /* skip trailing spaces */
if (*s2 == '\0') { /* no invalid trailing characters? */
lua_pushnumber(L, (lua_Number)n);
s += strspn(s, SPACECHARS); /* skip initial spaces */
if (*s == '-') { s++; neg = 1; } /* handle signal */
else if (*s == '+') s++;
if (isalnum((unsigned char)*s)) {
lua_Number n = 0;
do {
int digit = (isdigit((unsigned char)*s)) ? *s - '0'
: toupper((unsigned char)*s) - 'A' + 10;
if (digit >= base) break; /* invalid numeral; force a fail */
n = n * (lua_Number)base + (lua_Number)digit;
s++;
} while (isalnum((unsigned char)*s));
s += strspn(s, SPACECHARS); /* skip trailing spaces */
if (s == e) { /* no invalid trailing characters? */
lua_pushnumber(L, (neg) ? -n : n);
return 1;
} /* else not a number */
} /* else not a number */
}
}
}
lua_pushnil(L); /* else not a number */
lua_pushnil(L); /* not a number */
return 1;
}
@ -107,57 +115,13 @@ static int luaB_setmetatable (lua_State *L) {
luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2,
"nil or table expected");
if (luaL_getmetafield(L, 1, "__metatable"))
luaL_error(L, "cannot change a protected metatable");
return luaL_error(L, "cannot change a protected metatable");
lua_settop(L, 2);
lua_setmetatable(L, 1);
return 1;
}
static void getfunc (lua_State *L, int opt) {
if (lua_isfunction(L, 1)) lua_pushvalue(L, 1);
else {
lua_Debug ar;
int level = opt ? luaL_optint(L, 1, 1) : luaL_checkint(L, 1);
luaL_argcheck(L, level >= 0, 1, "level must be non-negative");
if (lua_getstack(L, level, &ar) == 0)
luaL_argerror(L, 1, "invalid level");
lua_getinfo(L, "f", &ar);
if (lua_isnil(L, -1))
luaL_error(L, "no function environment for tail call at level %d",
level);
}
}
static int luaB_getfenv (lua_State *L) {
getfunc(L, 1);
if (lua_iscfunction(L, -1)) /* is a C function? */
lua_pushvalue(L, LUA_GLOBALSINDEX); /* return the thread's global env. */
else
lua_getfenv(L, -1);
return 1;
}
static int luaB_setfenv (lua_State *L) {
luaL_checktype(L, 2, LUA_TTABLE);
getfunc(L, 0);
lua_pushvalue(L, 2);
if (lua_isnumber(L, 1) && lua_tonumber(L, 1) == 0) {
/* change environment of current thread */
lua_pushthread(L);
lua_insert(L, -2);
lua_setfenv(L, -2);
return 0;
}
else if (lua_iscfunction(L, -2) || lua_setfenv(L, -2) == 0)
luaL_error(L,
LUA_QL("setfenv") " cannot change environment of given object");
return 1;
}
static int luaB_rawequal (lua_State *L) {
luaL_checkany(L, 1);
luaL_checkany(L, 2);
@ -166,6 +130,15 @@ static int luaB_rawequal (lua_State *L) {
}
static int luaB_rawlen (lua_State *L) {
int t = lua_type(L, 1);
luaL_argcheck(L, t == LUA_TTABLE || t == LUA_TSTRING, 1,
"table or string expected");
lua_pushinteger(L, lua_rawlen(L, 1));
return 1;
}
static int luaB_rawget (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
luaL_checkany(L, 2);
@ -184,32 +157,29 @@ static int luaB_rawset (lua_State *L) {
}
static int luaB_gcinfo (lua_State *L) {
lua_pushinteger(L, lua_getgccount(L));
return 1;
}
static int luaB_collectgarbage (lua_State *L) {
static const char *const opts[] = {"stop", "restart", "collect",
"count", "step", "setpause", "setstepmul", NULL};
"count", "step", "setpause", "setstepmul",
"setmajorinc", "isrunning", "generational", "incremental", NULL};
static const int optsnum[] = {LUA_GCSTOP, LUA_GCRESTART, LUA_GCCOLLECT,
LUA_GCCOUNT, LUA_GCSTEP, LUA_GCSETPAUSE, LUA_GCSETSTEPMUL};
int o = luaL_checkoption(L, 1, "collect", opts);
LUA_GCCOUNT, LUA_GCSTEP, LUA_GCSETPAUSE, LUA_GCSETSTEPMUL,
LUA_GCSETMAJORINC, LUA_GCISRUNNING, LUA_GCGEN, LUA_GCINC};
int o = optsnum[luaL_checkoption(L, 1, "collect", opts)];
int ex = luaL_optint(L, 2, 0);
int res = lua_gc(L, optsnum[o], ex);
switch (optsnum[o]) {
int res = lua_gc(L, o, ex);
switch (o) {
case LUA_GCCOUNT: {
int b = lua_gc(L, LUA_GCCOUNTB, 0);
lua_pushnumber(L, res + ((lua_Number)b/1024));
return 1;
lua_pushinteger(L, b);
return 2;
}
case LUA_GCSTEP: {
case LUA_GCSTEP: case LUA_GCISRUNNING: {
lua_pushboolean(L, res);
return 1;
}
default: {
lua_pushnumber(L, res);
lua_pushinteger(L, res);
return 1;
}
}
@ -223,6 +193,23 @@ static int luaB_type (lua_State *L) {
}
static int pairsmeta (lua_State *L, const char *method, int iszero,
lua_CFunction iter) {
if (!luaL_getmetafield(L, 1, method)) { /* no metamethod? */
luaL_checktype(L, 1, LUA_TTABLE); /* argument must be a table */
lua_pushcfunction(L, iter); /* will return generator, */
lua_pushvalue(L, 1); /* state, */
if (iszero) lua_pushinteger(L, 0); /* and initial value */
else lua_pushnil(L);
}
else {
lua_pushvalue(L, 1); /* argument 'self' to metamethod */
lua_call(L, 1, 3); /* get 3 values from metamethod */
}
return 3;
}
static int luaB_next (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
lua_settop(L, 2); /* create a 2nd argument if there isn't one */
@ -236,18 +223,7 @@ static int luaB_next (lua_State *L) {
static int luaB_pairs (lua_State *L) {
luaL_checkany(L, 1);
if (luaL_getmetafield(L, 1, "__pairs")) {
lua_pushvalue(L, 1);
lua_call(L, 1, 3);
}
else {
luaL_checktype(L, 1, LUA_TTABLE);
lua_pushvalue(L, lua_upvalueindex(1)); /* return generator, */
lua_pushvalue(L, 1); /* state, */
lua_pushnil(L); /* and initial value */
}
return 3;
return pairsmeta(L, "__pairs", 0, luaB_next);
}
@ -257,28 +233,17 @@ static int ipairsaux (lua_State *L) {
i++; /* next value */
lua_pushinteger(L, i);
lua_rawgeti(L, 1, i);
return (lua_isnil(L, -1)) ? 0 : 2;
return (lua_isnil(L, -1)) ? 1 : 2;
}
static int luaB_ipairs (lua_State *L) {
luaL_checkany(L, 1);
if (luaL_getmetafield(L, 1, "__ipairs")) {
lua_pushvalue(L, 1);
lua_call(L, 1, 3);
}
else {
luaL_checktype(L, 1, LUA_TTABLE);
lua_pushvalue(L, lua_upvalueindex(1)); /* return generator, */
lua_pushvalue(L, 1); /* state, */
lua_pushinteger(L, 0); /* and initial value */
}
return 3;
return pairsmeta(L, "__ipairs", 1, ipairsaux);
}
static int load_aux (lua_State *L, int status) {
if (status == 0) /* OK? */
if (status == LUA_OK)
return 1;
else {
lua_pushnil(L);
@ -288,20 +253,34 @@ static int load_aux (lua_State *L, int status) {
}
static int luaB_loadstring (lua_State *L) {
size_t l;
const char *s = luaL_checklstring(L, 1, &l);
const char *chunkname = luaL_optstring(L, 2, s);
return load_aux(L, luaL_loadbuffer(L, s, l, chunkname));
}
static int luaB_loadfile (lua_State *L) {
const char *fname = luaL_optstring(L, 1, NULL);
return load_aux(L, luaL_loadfile(L, fname));
const char *mode = luaL_optstring(L, 2, NULL);
int env = !lua_isnone(L, 3); /* 'env' parameter? */
int status = luaL_loadfilex(L, fname, mode);
if (status == LUA_OK && env) { /* 'env' parameter? */
lua_pushvalue(L, 3);
lua_setupvalue(L, -2, 1); /* set it as 1st upvalue of loaded chunk */
}
return load_aux(L, status);
}
/*
** {======================================================
** Generic Read function
** =======================================================
*/
/*
** reserved slot, above all arguments, to hold a copy of the returned
** string to avoid it being collected while parsed. 'load' has four
** optional arguments (chunk, source name, mode, and environment).
*/
#define RESERVEDSLOT 5
/*
** Reader for generic `load' function: `lua_load' uses the
** stack for internal stuff, so the reader cannot change the
@ -309,7 +288,7 @@ static int luaB_loadfile (lua_State *L) {
** reserved slot inside the stack.
*/
static const char *generic_reader (lua_State *L, void *ud, size_t *size) {
(void)ud; /* to avoid warnings */
(void)(ud); /* not used */
luaL_checkstack(L, 2, "too many nested functions");
lua_pushvalue(L, 1); /* get function */
lua_call(L, 0, 1); /* call it */
@ -317,58 +296,60 @@ static const char *generic_reader (lua_State *L, void *ud, size_t *size) {
*size = 0;
return NULL;
}
else if (lua_isstring(L, -1)) {
lua_replace(L, 3); /* save string in a reserved stack slot */
return lua_tolstring(L, 3, size);
}
else luaL_error(L, "reader function must return a string");
return NULL; /* to avoid warnings */
else if (!lua_isstring(L, -1))
luaL_error(L, "reader function must return a string");
lua_replace(L, RESERVEDSLOT); /* save string in reserved slot */
return lua_tolstring(L, RESERVEDSLOT, size);
}
static int luaB_load (lua_State *L) {
int status;
const char *cname = luaL_optstring(L, 2, "=(load)");
size_t l;
int top = lua_gettop(L);
const char *s = lua_tolstring(L, 1, &l);
const char *mode = luaL_optstring(L, 3, "bt");
if (s != NULL) { /* loading a string? */
const char *chunkname = luaL_optstring(L, 2, s);
status = luaL_loadbufferx(L, s, l, chunkname, mode);
}
else { /* loading from a reader function */
const char *chunkname = luaL_optstring(L, 2, "=(load)");
luaL_checktype(L, 1, LUA_TFUNCTION);
lua_settop(L, 3); /* function, eventual name, plus one reserved slot */
status = lua_load(L, generic_reader, NULL, cname);
lua_settop(L, RESERVEDSLOT); /* create reserved slot */
status = lua_load(L, generic_reader, NULL, chunkname, mode);
}
if (status == LUA_OK && top >= 4) { /* is there an 'env' argument */
lua_pushvalue(L, 4); /* environment for loaded function */
lua_setupvalue(L, -2, 1); /* set it as 1st upvalue */
}
return load_aux(L, status);
}
/* }====================================================== */
static int dofilecont (lua_State *L) {
return lua_gettop(L) - 1;
}
static int luaB_dofile (lua_State *L) {
const char *fname = luaL_optstring(L, 1, NULL);
int n = lua_gettop(L);
if (luaL_loadfile(L, fname) != 0) lua_error(L);
lua_call(L, 0, LUA_MULTRET);
return lua_gettop(L) - n;
lua_settop(L, 1);
if (luaL_loadfile(L, fname) != LUA_OK) lua_error(L);
lua_callk(L, 0, LUA_MULTRET, 0, dofilecont);
return dofilecont(L);
}
static int luaB_assert (lua_State *L) {
luaL_checkany(L, 1);
if (!lua_toboolean(L, 1))
return luaL_error(L, "%s", luaL_optstring(L, 2, "assertion failed!"));
return lua_gettop(L);
}
static int luaB_unpack (lua_State *L) {
int i, e, n;
luaL_checktype(L, 1, LUA_TTABLE);
i = luaL_optint(L, 2, 1);
e = luaL_opt(L, luaL_checkint, 3, luaL_getn(L, 1));
if (i > e) return 0; /* empty range */
n = e - i + 1; /* number of elements */
if (n <= 0 || !lua_checkstack(L, n)) /* n <= 0 means arith. overflow */
return luaL_error(L, "too many results to unpack");
lua_rawgeti(L, 1, i); /* push arg[i] (avoiding overflow problems) */
while (i++ < e) /* push arg[i + 1...e] */
lua_rawgeti(L, 1, i);
return n;
}
static int luaB_select (lua_State *L) {
int n = lua_gettop(L);
if (lua_type(L, 1) == LUA_TSTRING && *lua_tostring(L, 1) == '#') {
@ -385,75 +366,50 @@ static int luaB_select (lua_State *L) {
}
static int finishpcall (lua_State *L, int status) {
if (!lua_checkstack(L, 1)) { /* no space for extra boolean? */
lua_settop(L, 0); /* create space for return values */
lua_pushboolean(L, 0);
lua_pushstring(L, "stack overflow");
return 2; /* return false, msg */
}
lua_pushboolean(L, status); /* first result (status) */
lua_replace(L, 1); /* put first result in first slot */
return lua_gettop(L);
}
static int pcallcont (lua_State *L) {
int status = lua_getctx(L, NULL);
return finishpcall(L, (status == LUA_YIELD));
}
static int luaB_pcall (lua_State *L) {
int status;
luaL_checkany(L, 1);
status = lua_pcall(L, lua_gettop(L) - 1, LUA_MULTRET, 0);
lua_pushboolean(L, (status == 0));
lua_insert(L, 1);
return lua_gettop(L); /* return status + all results */
lua_pushnil(L);
lua_insert(L, 1); /* create space for status result */
status = lua_pcallk(L, lua_gettop(L) - 2, LUA_MULTRET, 0, 0, pcallcont);
return finishpcall(L, (status == LUA_OK));
}
static int luaB_xpcall (lua_State *L) {
int status;
luaL_checkany(L, 2);
lua_settop(L, 2);
lua_insert(L, 1); /* put error function under function to be called */
status = lua_pcall(L, 0, LUA_MULTRET, 1);
lua_pushboolean(L, (status == 0));
lua_replace(L, 1);
return lua_gettop(L); /* return status + all results */
int n = lua_gettop(L);
luaL_argcheck(L, n >= 2, 2, "value expected");
lua_pushvalue(L, 1); /* exchange function... */
lua_copy(L, 2, 1); /* ...and error handler */
lua_replace(L, 2);
status = lua_pcallk(L, n - 2, LUA_MULTRET, 1, 0, pcallcont);
return finishpcall(L, (status == LUA_OK));
}
static int luaB_tostring (lua_State *L) {
luaL_checkany(L, 1);
if (luaL_callmeta(L, 1, "__tostring")) /* is there a metafield? */
return 1; /* use its value */
switch (lua_type(L, 1)) {
case LUA_TNUMBER:
lua_pushstring(L, lua_tostring(L, 1));
break;
case LUA_TSTRING:
lua_pushvalue(L, 1);
break;
case LUA_TBOOLEAN:
lua_pushstring(L, (lua_toboolean(L, 1) ? "true" : "false"));
break;
case LUA_TNIL:
lua_pushliteral(L, "nil");
break;
default:
lua_pushfstring(L, "%s: %p", luaL_typename(L, 1), lua_topointer(L, 1));
break;
}
return 1;
}
static int luaB_newproxy (lua_State *L) {
lua_settop(L, 1);
lua_newuserdata(L, 0); /* create proxy */
if (lua_toboolean(L, 1) == 0)
return 1; /* no metatable */
else if (lua_isboolean(L, 1)) {
lua_newtable(L); /* create a new metatable `m' ... */
lua_pushvalue(L, -1); /* ... and mark `m' as a valid metatable */
lua_pushboolean(L, 1);
lua_rawset(L, lua_upvalueindex(1)); /* weaktable[m] = true */
}
else {
int validproxy = 0; /* to check if weaktable[metatable(u)] == true */
if (lua_getmetatable(L, 1)) {
lua_rawget(L, lua_upvalueindex(1));
validproxy = lua_toboolean(L, -1);
lua_pop(L, 1); /* remove value */
}
luaL_argcheck(L, validproxy, 1, "boolean or proxy expected");
lua_getmetatable(L, 1); /* metatable is valid; get it */
}
lua_setmetatable(L, 2);
luaL_tolstring(L, 1, NULL);
return 1;
}
@ -463,205 +419,40 @@ static const luaL_Reg base_funcs[] = {
{"collectgarbage", luaB_collectgarbage},
{"dofile", luaB_dofile},
{"error", luaB_error},
{"gcinfo", luaB_gcinfo},
{"getfenv", luaB_getfenv},
{"getmetatable", luaB_getmetatable},
{"ipairs", luaB_ipairs},
{"loadfile", luaB_loadfile},
{"load", luaB_load},
{"loadstring", luaB_loadstring},
#if defined(LUA_COMPAT_LOADSTRING)
{"loadstring", luaB_load},
#endif
{"next", luaB_next},
{"pairs", luaB_pairs},
{"pcall", luaB_pcall},
{"print", luaB_print},
{"rawequal", luaB_rawequal},
{"rawlen", luaB_rawlen},
{"rawget", luaB_rawget},
{"rawset", luaB_rawset},
{"select", luaB_select},
{"setfenv", luaB_setfenv},
{"setmetatable", luaB_setmetatable},
{"tonumber", luaB_tonumber},
{"tostring", luaB_tostring},
{"type", luaB_type},
{"unpack", luaB_unpack},
{"xpcall", luaB_xpcall},
{NULL, NULL}
};
/*
** {======================================================
** Coroutine library
** =======================================================
*/
#define CO_RUN 0 /* running */
#define CO_SUS 1 /* suspended */
#define CO_NOR 2 /* 'normal' (it resumed another coroutine) */
#define CO_DEAD 3
static const char *const statnames[] =
{"running", "suspended", "normal", "dead"};
static int costatus (lua_State *L, lua_State *co) {
if (L == co) return CO_RUN;
switch (lua_status(co)) {
case LUA_YIELD:
return CO_SUS;
case 0: {
lua_Debug ar;
if (lua_getstack(co, 0, &ar) > 0) /* does it have frames? */
return CO_NOR; /* it is running */
else if (lua_gettop(co) == 0)
return CO_DEAD;
else
return CO_SUS; /* initial state */
}
default: /* some error occured */
return CO_DEAD;
}
}
static int luaB_costatus (lua_State *L) {
lua_State *co = lua_tothread(L, 1);
luaL_argcheck(L, co, 1, "coroutine expected");
lua_pushstring(L, statnames[costatus(L, co)]);
return 1;
}
static int auxresume (lua_State *L, lua_State *co, int narg) {
int status = costatus(L, co);
if (!lua_checkstack(co, narg))
luaL_error(L, "too many arguments to resume");
if (status != CO_SUS) {
lua_pushfstring(L, "cannot resume %s coroutine", statnames[status]);
return -1; /* error flag */
}
lua_xmove(L, co, narg);
lua_setlevel(L, co);
status = lua_resume(co, narg);
if (status == 0 || status == LUA_YIELD) {
int nres = lua_gettop(co);
if (!lua_checkstack(L, nres + 1))
luaL_error(L, "too many results to resume");
lua_xmove(co, L, nres); /* move yielded values */
return nres;
}
else {
lua_xmove(co, L, 1); /* move error message */
return -1; /* error flag */
}
}
static int luaB_coresume (lua_State *L) {
lua_State *co = lua_tothread(L, 1);
int r;
luaL_argcheck(L, co, 1, "coroutine expected");
r = auxresume(L, co, lua_gettop(L) - 1);
if (r < 0) {
lua_pushboolean(L, 0);
lua_insert(L, -2);
return 2; /* return false + error message */
}
else {
lua_pushboolean(L, 1);
lua_insert(L, -(r + 1));
return r + 1; /* return true + `resume' returns */
}
}
static int luaB_auxwrap (lua_State *L) {
lua_State *co = lua_tothread(L, lua_upvalueindex(1));
int r = auxresume(L, co, lua_gettop(L));
if (r < 0) {
if (lua_isstring(L, -1)) { /* error object is a string? */
luaL_where(L, 1); /* add extra info */
lua_insert(L, -2);
lua_concat(L, 2);
}
lua_error(L); /* propagate error */
}
return r;
}
static int luaB_cocreate (lua_State *L) {
lua_State *NL = lua_newthread(L);
luaL_argcheck(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1), 1,
"Lua function expected");
lua_pushvalue(L, 1); /* move function to top */
lua_xmove(L, NL, 1); /* move function from L to NL */
return 1;
}
static int luaB_cowrap (lua_State *L) {
luaB_cocreate(L);
lua_pushcclosure(L, luaB_auxwrap, 1);
return 1;
}
static int luaB_yield (lua_State *L) {
return lua_yield(L, lua_gettop(L));
}
static int luaB_corunning (lua_State *L) {
if (lua_pushthread(L))
lua_pushnil(L); /* main thread is not a coroutine */
return 1;
}
static const luaL_Reg co_funcs[] = {
{"create", luaB_cocreate},
{"resume", luaB_coresume},
{"running", luaB_corunning},
{"status", luaB_costatus},
{"wrap", luaB_cowrap},
{"yield", luaB_yield},
{NULL, NULL}
};
/* }====================================================== */
static void auxopen (lua_State *L, const char *name,
lua_CFunction f, lua_CFunction u) {
lua_pushcfunction(L, u);
lua_pushcclosure(L, f, 1);
lua_setfield(L, -2, name);
}
static void base_open (lua_State *L) {
LUAMOD_API int luaopen_base (lua_State *L) {
/* set global _G */
lua_pushvalue(L, LUA_GLOBALSINDEX);
lua_setglobal(L, "_G");
lua_pushglobaltable(L);
lua_pushglobaltable(L);
lua_setfield(L, -2, "_G");
/* open lib into global table */
luaL_register(L, "_G", base_funcs);
luaL_setfuncs(L, base_funcs, 0);
lua_pushliteral(L, LUA_VERSION);
lua_setglobal(L, "_VERSION"); /* set global _VERSION */
/* `ipairs' and `pairs' need auxliliary functions as upvalues */
auxopen(L, "ipairs", luaB_ipairs, ipairsaux);
auxopen(L, "pairs", luaB_pairs, luaB_next);
/* `newproxy' needs a weaktable as upvalue */
lua_createtable(L, 0, 1); /* new table `w' */
lua_pushvalue(L, -1); /* `w' will be its own metatable */
lua_setmetatable(L, -2);
lua_pushliteral(L, "kv");
lua_setfield(L, -2, "__mode"); /* metatable(w).__mode = "kv" */
lua_pushcclosure(L, luaB_newproxy, 1);
lua_setglobal(L, "newproxy"); /* set global `newproxy' */
}
LUALIB_API int luaopen_base (lua_State *L) {
base_open(L);
luaL_register(L, LUA_COLIBNAME, co_funcs);
return 2;
lua_setfield(L, -2, "_VERSION"); /* set global _VERSION */
return 1;
}

209
depends/lua/src/lbitlib.c
Unescape Escape View File

@ -0,0 +1,209 @@
/*
** $Id: lbitlib.c,v 1.16 2011/06/20 16:35:23 roberto Exp $
** Standard library for bitwise operations
** See Copyright Notice in lua.h
*/
#define lbitlib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
/* number of bits to consider in a number */
#if !defined(LUA_NBITS)
#define LUA_NBITS 32
#endif
#define ALLONES (~(((~(lua_Unsigned)0) << (LUA_NBITS - 1)) << 1))
/* macro to trim extra bits */
#define trim(x) ((x) & ALLONES)
/* builds a number with 'n' ones (1 <= n <= LUA_NBITS) */
#define mask(n) (~((ALLONES << 1) << ((n) - 1)))
typedef lua_Unsigned b_uint;
static b_uint andaux (lua_State *L) {
int i, n = lua_gettop(L);
b_uint r = ~(b_uint)0;
for (i = 1; i <= n; i++)
r &= luaL_checkunsigned(L, i);
return trim(r);
}
static int b_and (lua_State *L) {
b_uint r = andaux(L);
lua_pushunsigned(L, r);
return 1;
}
static int b_test (lua_State *L) {
b_uint r = andaux(L);
lua_pushboolean(L, r != 0);
return 1;
}
static int b_or (lua_State *L) {
int i, n = lua_gettop(L);
b_uint r = 0;
for (i = 1; i <= n; i++)
r |= luaL_checkunsigned(L, i);
lua_pushunsigned(L, trim(r));
return 1;
}
static int b_xor (lua_State *L) {
int i, n = lua_gettop(L);
b_uint r = 0;
for (i = 1; i <= n; i++)
r ^= luaL_checkunsigned(L, i);
lua_pushunsigned(L, trim(r));
return 1;
}
static int b_not (lua_State *L) {
b_uint r = ~luaL_checkunsigned(L, 1);
lua_pushunsigned(L, trim(r));
return 1;
}
static int b_shift (lua_State *L, b_uint r, int i) {
if (i < 0) { /* shift right? */
i = -i;
r = trim(r);
if (i >= LUA_NBITS) r = 0;
else r >>= i;
}
else { /* shift left */
if (i >= LUA_NBITS) r = 0;
else r <<= i;
r = trim(r);
}
lua_pushunsigned(L, r);
return 1;
}
static int b_lshift (lua_State *L) {
return b_shift(L, luaL_checkunsigned(L, 1), luaL_checkint(L, 2));
}
static int b_rshift (lua_State *L) {
return b_shift(L, luaL_checkunsigned(L, 1), -luaL_checkint(L, 2));
}
static int b_arshift (lua_State *L) {
b_uint r = luaL_checkunsigned(L, 1);
int i = luaL_checkint(L, 2);
if (i < 0 || !(r & ((b_uint)1 << (LUA_NBITS - 1))))
return b_shift(L, r, -i);
else { /* arithmetic shift for 'negative' number */
if (i >= LUA_NBITS) r = ALLONES;
else
r = trim((r >> i) | ~(~(b_uint)0 >> i)); /* add signal bit */
lua_pushunsigned(L, r);
return 1;
}
}
static int b_rot (lua_State *L, int i) {
b_uint r = luaL_checkunsigned(L, 1);
i &= (LUA_NBITS - 1); /* i = i % NBITS */
r = trim(r);
r = (r << i) | (r >> (LUA_NBITS - i));
lua_pushunsigned(L, trim(r));
return 1;
}
static int b_lrot (lua_State *L) {
return b_rot(L, luaL_checkint(L, 2));
}
static int b_rrot (lua_State *L) {
return b_rot(L, -luaL_checkint(L, 2));
}
/*
** get field and width arguments for field-manipulation functions,
** checking whether they are valid
*/
static int fieldargs (lua_State *L, int farg, int *width) {
int f = luaL_checkint(L, farg);
int w = luaL_optint(L, farg + 1, 1);
luaL_argcheck(L, 0 <= f, farg, "field cannot be negative");
luaL_argcheck(L, 0 < w, farg + 1, "width must be positive");
if (f + w > LUA_NBITS)
luaL_error(L, "trying to access non-existent bits");
*width = w;
return f;
}
static int b_extract (lua_State *L) {
int w;
b_uint r = luaL_checkunsigned(L, 1);
int f = fieldargs(L, 2, &w);
r = (r >> f) & mask(w);
lua_pushunsigned(L, r);
return 1;
}
static int b_replace (lua_State *L) {
int w;
b_uint r = luaL_checkunsigned(L, 1);
b_uint v = luaL_checkunsigned(L, 2);
int f = fieldargs(L, 3, &w);
int m = mask(w);
v &= m; /* erase bits outside given width */
r = (r & ~(m << f)) | (v << f);
lua_pushunsigned(L, r);
return 1;
}
static const luaL_Reg bitlib[] = {
{"arshift", b_arshift},
{"band", b_and},
{"bnot", b_not},
{"bor", b_or},
{"bxor", b_xor},
{"btest", b_test},
{"extract", b_extract},
{"lrotate", b_lrot},
{"lshift", b_lshift},
{"replace", b_replace},
{"rrotate", b_rrot},
{"rshift", b_rshift},
{NULL, NULL}
};
LUAMOD_API int luaopen_bit32 (lua_State *L) {
luaL_newlib(L, bitlib);
return 1;
}

395
depends/lua/src/lcode.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lcode.c,v 2.25.1.3 2007/12/28 15:32:23 roberto Exp $
** $Id: lcode.c,v 2.60 2011/08/30 16:26:41 roberto Exp $
** Code generator for Lua
** See Copyright Notice in lua.h
*/
@ -21,7 +21,9 @@
#include "lobject.h"
#include "lopcodes.h"
#include "lparser.h"
#include "lstring.h"
#include "ltable.h"
#include "lvm.h"
#define hasjumps(e) ((e)->t != (e)->f)
@ -34,25 +36,23 @@ static int isnumeral(expdesc *e) {
void luaK_nil (FuncState *fs, int from, int n) {
Instruction *previous;
int l = from + n - 1; /* last register to set nil */
if (fs->pc > fs->lasttarget) { /* no jumps to current position? */
if (fs->pc == 0) { /* function start? */
if (from >= fs->nactvar)
return; /* positions are already clean */
}
else {
previous = &fs->f->code[fs->pc-1];
if (GET_OPCODE(*previous) == OP_LOADNIL) {
int pfrom = GETARG_A(*previous);
int pto = GETARG_B(*previous);
if (pfrom <= from && from <= pto+1) { /* can connect both? */
if (from+n-1 > pto)
SETARG_B(*previous, from+n-1);
int pl = pfrom + GETARG_B(*previous);
if ((pfrom <= from && from <= pl + 1) ||
(from <= pfrom && pfrom <= l + 1)) { /* can connect both? */
if (pfrom < from) from = pfrom; /* from = min(from, pfrom) */
if (pl > l) l = pl; /* l = max(l, pl) */
SETARG_A(*previous, from);
SETARG_B(*previous, l - from);
return;
}
} /* else go through */
}
}
}
luaK_codeABC(fs, OP_LOADNIL, from, from+n-1, 0); /* else no optimization */
luaK_codeABC(fs, OP_LOADNIL, from, n - 1, 0); /* else no optimization */
}
@ -176,6 +176,19 @@ void luaK_patchlist (FuncState *fs, int list, int target) {
}
LUAI_FUNC void luaK_patchclose (FuncState *fs, int list, int level) {
level++; /* argument is +1 to reserve 0 as non-op */
while (list != NO_JUMP) {
int next = getjump(fs, list);
lua_assert(GET_OPCODE(fs->f->code[list]) == OP_JMP &&
(GETARG_A(fs->f->code[list]) == 0 ||
GETARG_A(fs->f->code[list]) >= level));
SETARG_A(fs->f->code[list], level);
list = next;
}
}
void luaK_patchtohere (FuncState *fs, int list) {
luaK_getlabel(fs);
luaK_concat(fs, &fs->jpc, list);
@ -196,6 +209,55 @@ void luaK_concat (FuncState *fs, int *l1, int l2) {
}
static int luaK_code (FuncState *fs, Instruction i) {
Proto *f = fs->f;
dischargejpc(fs); /* `pc' will change */
/* put new instruction in code array */
luaM_growvector(fs->ls->L, f->code, fs->pc, f->sizecode, Instruction,
MAX_INT, "opcodes");
f->code[fs->pc] = i;
/* save corresponding line information */
luaM_growvector(fs->ls->L, f->lineinfo, fs->pc, f->sizelineinfo, int,
MAX_INT, "opcodes");
f->lineinfo[fs->pc] = fs->ls->lastline;
return fs->pc++;
}
int luaK_codeABC (FuncState *fs, OpCode o, int a, int b, int c) {
lua_assert(getOpMode(o) == iABC);
lua_assert(getBMode(o) != OpArgN || b == 0);
lua_assert(getCMode(o) != OpArgN || c == 0);
lua_assert(a <= MAXARG_A && b <= MAXARG_B && c <= MAXARG_C);
return luaK_code(fs, CREATE_ABC(o, a, b, c));
}
int luaK_codeABx (FuncState *fs, OpCode o, int a, unsigned int bc) {
lua_assert(getOpMode(o) == iABx || getOpMode(o) == iAsBx);
lua_assert(getCMode(o) == OpArgN);
lua_assert(a <= MAXARG_A && bc <= MAXARG_Bx);
return luaK_code(fs, CREATE_ABx(o, a, bc));
}
static int codeextraarg (FuncState *fs, int a) {
lua_assert(a <= MAXARG_Ax);
return luaK_code(fs, CREATE_Ax(OP_EXTRAARG, a));
}
int luaK_codek (FuncState *fs, int reg, int k) {
if (k <= MAXARG_Bx)
return luaK_codeABx(fs, OP_LOADK, reg, k);
else {
int p = luaK_codeABx(fs, OP_LOADKX, reg, 0);
codeextraarg(fs, k);
return p;
}
}
void luaK_checkstack (FuncState *fs, int n) {
int newstack = fs->freereg + n;
if (newstack > fs->f->maxstacksize) {
@ -222,42 +284,60 @@ static void freereg (FuncState *fs, int reg) {
static void freeexp (FuncState *fs, expdesc *e) {
if (e->k == VNONRELOC)
freereg(fs, e->u.s.info);
freereg(fs, e->u.info);
}
static int addk (FuncState *fs, TValue *k, TValue *v) {
lua_State *L = fs->L;
TValue *idx = luaH_set(L, fs->h, k);
static int addk (FuncState *fs, TValue *key, TValue *v) {
lua_State *L = fs->ls->L;
TValue *idx = luaH_set(L, fs->h, key);
Proto *f = fs->f;
int oldsize = f->sizek;
int k, oldsize;
if (ttisnumber(idx)) {
lua_assert(luaO_rawequalObj(&fs->f->k[cast_int(nvalue(idx))], v));
return cast_int(nvalue(idx));
}
else { /* constant not found; create a new entry */
setnvalue(idx, cast_num(fs->nk));
luaM_growvector(L, f->k, fs->nk, f->sizek, TValue,
MAXARG_Bx, "constant table overflow");
lua_Number n = nvalue(idx);
lua_number2int(k, n);
if (luaV_rawequalobj(&f->k[k], v))
return k;
/* else may be a collision (e.g., between 0.0 and "\0\0\0\0\0\0\0\0");
go through and create a new entry for this value */
}
/* constant not found; create a new entry */
oldsize = f->sizek;
k = fs->nk;
/* numerical value does not need GC barrier;
table has no metatable, so it does not need to invalidate cache */
setnvalue(idx, cast_num(k));
luaM_growvector(L, f->k, k, f->sizek, TValue, MAXARG_Ax, "constants");
while (oldsize < f->sizek) setnilvalue(&f->k[oldsize++]);
setobj(L, &f->k[fs->nk], v);
setobj(L, &f->k[k], v);
fs->nk++;
luaC_barrier(L, f, v);
return fs->nk++;
}
return k;
}
int luaK_stringK (FuncState *fs, TString *s) {
TValue o;
setsvalue(fs->L, &o, s);
setsvalue(fs->ls->L, &o, s);
return addk(fs, &o, &o);
}
int luaK_numberK (FuncState *fs, lua_Number r) {
int n;
lua_State *L = fs->ls->L;
TValue o;
setnvalue(&o, r);
return addk(fs, &o, &o);
if (r == 0 || luai_numisnan(NULL, r)) { /* handle -0 and NaN */
/* use raw representation as key to avoid numeric problems */
setsvalue(L, L->top, luaS_newlstr(L, (char *)&r, sizeof(r)));
incr_top(L);
n = addk(fs, L->top - 1, &o);
L->top--;
}
else
n = addk(fs, &o, &o); /* regular case */
return n;
}
@ -272,7 +352,7 @@ static int nilK (FuncState *fs) {
TValue k, v;
setnilvalue(&v);
/* cannot use nil as key; instead use table itself to represent nil */
sethvalue(fs->L, &k, fs->h);
sethvalue(fs->ls->L, &k, fs->h);
return addk(fs, &k, &v);
}
@ -292,7 +372,7 @@ void luaK_setreturns (FuncState *fs, expdesc *e, int nresults) {
void luaK_setoneret (FuncState *fs, expdesc *e) {
if (e->k == VCALL) { /* expression is an open function call? */
e->k = VNONRELOC;
e->u.s.info = GETARG_A(getcode(fs, e));
e->u.info = GETARG_A(getcode(fs, e));
}
else if (e->k == VVARARG) {
SETARG_B(getcode(fs, e), 2);
@ -308,19 +388,18 @@ void luaK_dischargevars (FuncState *fs, expdesc *e) {
break;
}
case VUPVAL: {
e->u.s.info = luaK_codeABC(fs, OP_GETUPVAL, 0, e->u.s.info, 0);
e->k = VRELOCABLE;
break;
}
case VGLOBAL: {
e->u.s.info = luaK_codeABx(fs, OP_GETGLOBAL, 0, e->u.s.info);
e->u.info = luaK_codeABC(fs, OP_GETUPVAL, 0, e->u.info, 0);
e->k = VRELOCABLE;
break;
}
case VINDEXED: {
freereg(fs, e->u.s.aux);
freereg(fs, e->u.s.info);
e->u.s.info = luaK_codeABC(fs, OP_GETTABLE, 0, e->u.s.info, e->u.s.aux);
OpCode op = OP_GETTABUP; /* assume 't' is in an upvalue */
freereg(fs, e->u.ind.idx);
if (e->u.ind.vt == VLOCAL) { /* 't' is in a register? */
freereg(fs, e->u.ind.t);
op = OP_GETTABLE;
}
e->u.info = luaK_codeABC(fs, op, 0, e->u.ind.t, e->u.ind.idx);
e->k = VRELOCABLE;
break;
}
@ -352,11 +431,11 @@ static void discharge2reg (FuncState *fs, expdesc *e, int reg) {
break;
}
case VK: {
luaK_codeABx(fs, OP_LOADK, reg, e->u.s.info);
luaK_codek(fs, reg, e->u.info);
break;
}
case VKNUM: {
luaK_codeABx(fs, OP_LOADK, reg, luaK_numberK(fs, e->u.nval));
luaK_codek(fs, reg, luaK_numberK(fs, e->u.nval));
break;
}
case VRELOCABLE: {
@ -365,8 +444,8 @@ static void discharge2reg (FuncState *fs, expdesc *e, int reg) {
break;
}
case VNONRELOC: {
if (reg != e->u.s.info)
luaK_codeABC(fs, OP_MOVE, reg, e->u.s.info, 0);
if (reg != e->u.info)
luaK_codeABC(fs, OP_MOVE, reg, e->u.info, 0);
break;
}
default: {
@ -374,7 +453,7 @@ static void discharge2reg (FuncState *fs, expdesc *e, int reg) {
return; /* nothing to do... */
}
}
e->u.s.info = reg;
e->u.info = reg;
e->k = VNONRELOC;
}
@ -390,7 +469,7 @@ static void discharge2anyreg (FuncState *fs, expdesc *e) {
static void exp2reg (FuncState *fs, expdesc *e, int reg) {
discharge2reg(fs, e, reg);
if (e->k == VJMP)
luaK_concat(fs, &e->t, e->u.s.info); /* put this jump in `t' list */
luaK_concat(fs, &e->t, e->u.info); /* put this jump in `t' list */
if (hasjumps(e)) {
int final; /* position after whole expression */
int p_f = NO_JUMP; /* position of an eventual LOAD false */
@ -406,7 +485,7 @@ static void exp2reg (FuncState *fs, expdesc *e, int reg) {
patchlistaux(fs, e->t, final, reg, p_t);
}
e->f = e->t = NO_JUMP;
e->u.s.info = reg;
e->u.info = reg;
e->k = VNONRELOC;
}
@ -422,14 +501,20 @@ void luaK_exp2nextreg (FuncState *fs, expdesc *e) {
int luaK_exp2anyreg (FuncState *fs, expdesc *e) {
luaK_dischargevars(fs, e);
if (e->k == VNONRELOC) {
if (!hasjumps(e)) return e->u.s.info; /* exp is already in a register */
if (e->u.s.info >= fs->nactvar) { /* reg. is not a local? */
exp2reg(fs, e, e->u.s.info); /* put value on it */
return e->u.s.info;
if (!hasjumps(e)) return e->u.info; /* exp is already in a register */
if (e->u.info >= fs->nactvar) { /* reg. is not a local? */
exp2reg(fs, e, e->u.info); /* put value on it */
return e->u.info;
}
}
luaK_exp2nextreg(fs, e); /* default */
return e->u.s.info;
return e->u.info;
}
void luaK_exp2anyregup (FuncState *fs, expdesc *e) {
if (e->k != VUPVAL || hasjumps(e))
luaK_exp2anyreg(fs, e);
}
@ -444,22 +529,24 @@ void luaK_exp2val (FuncState *fs, expdesc *e) {
int luaK_exp2RK (FuncState *fs, expdesc *e) {
luaK_exp2val(fs, e);
switch (e->k) {
case VKNUM:
case VTRUE:
case VFALSE:
case VNIL: {
if (fs->nk <= MAXINDEXRK) { /* constant fit in RK operand? */
e->u.s.info = (e->k == VNIL) ? nilK(fs) :
(e->k == VKNUM) ? luaK_numberK(fs, e->u.nval) :
boolK(fs, (e->k == VTRUE));
if (fs->nk <= MAXINDEXRK) { /* constant fits in RK operand? */
e->u.info = (e->k == VNIL) ? nilK(fs) : boolK(fs, (e->k == VTRUE));
e->k = VK;
return RKASK(e->u.s.info);
return RKASK(e->u.info);
}
else break;
}
case VKNUM: {
e->u.info = luaK_numberK(fs, e->u.nval);
e->k = VK;
/* go through */
}
case VK: {
if (e->u.s.info <= MAXINDEXRK) /* constant fit in argC? */
return RKASK(e->u.s.info);
if (e->u.info <= MAXINDEXRK) /* constant fits in argC? */
return RKASK(e->u.info);
else break;
}
default: break;
@ -473,22 +560,18 @@ void luaK_storevar (FuncState *fs, expdesc *var, expdesc *ex) {
switch (var->k) {
case VLOCAL: {
freeexp(fs, ex);
exp2reg(fs, ex, var->u.s.info);
exp2reg(fs, ex, var->u.info);
return;
}
case VUPVAL: {
int e = luaK_exp2anyreg(fs, ex);
luaK_codeABC(fs, OP_SETUPVAL, e, var->u.s.info, 0);
break;
}
case VGLOBAL: {
int e = luaK_exp2anyreg(fs, ex);
luaK_codeABx(fs, OP_SETGLOBAL, e, var->u.s.info);
luaK_codeABC(fs, OP_SETUPVAL, e, var->u.info, 0);
break;
}
case VINDEXED: {
OpCode op = (var->u.ind.vt == VLOCAL) ? OP_SETTABLE : OP_SETTABUP;
int e = luaK_exp2RK(fs, ex);
luaK_codeABC(fs, OP_SETTABLE, var->u.s.info, var->u.s.aux, e);
luaK_codeABC(fs, op, var->u.ind.t, var->u.ind.idx, e);
break;
}
default: {
@ -501,20 +584,20 @@ void luaK_storevar (FuncState *fs, expdesc *var, expdesc *ex) {
void luaK_self (FuncState *fs, expdesc *e, expdesc *key) {
int func;
int ereg;
luaK_exp2anyreg(fs, e);
ereg = e->u.info; /* register where 'e' was placed */
freeexp(fs, e);
func = fs->freereg;
luaK_reserveregs(fs, 2);
luaK_codeABC(fs, OP_SELF, func, e->u.s.info, luaK_exp2RK(fs, key));
freeexp(fs, key);
e->u.s.info = func;
e->u.info = fs->freereg; /* base register for op_self */
e->k = VNONRELOC;
luaK_reserveregs(fs, 2); /* function and 'self' produced by op_self */
luaK_codeABC(fs, OP_SELF, e->u.info, ereg, luaK_exp2RK(fs, key));
freeexp(fs, key);
}
static void invertjump (FuncState *fs, expdesc *e) {
Instruction *pc = getjumpcontrol(fs, e->u.s.info);
Instruction *pc = getjumpcontrol(fs, e->u.info);
lua_assert(testTMode(GET_OPCODE(*pc)) && GET_OPCODE(*pc) != OP_TESTSET &&
GET_OPCODE(*pc) != OP_TEST);
SETARG_A(*pc, !(GETARG_A(*pc)));
@ -532,7 +615,7 @@ static int jumponcond (FuncState *fs, expdesc *e, int cond) {
}
discharge2anyreg(fs, e);
freeexp(fs, e);
return condjump(fs, OP_TESTSET, NO_REG, e->u.s.info, cond);
return condjump(fs, OP_TESTSET, NO_REG, e->u.info, cond);
}
@ -540,17 +623,13 @@ void luaK_goiftrue (FuncState *fs, expdesc *e) {
int pc; /* pc of last jump */
luaK_dischargevars(fs, e);
switch (e->k) {
case VK: case VKNUM: case VTRUE: {
pc = NO_JUMP; /* always true; do nothing */
break;
}
case VFALSE: {
pc = luaK_jump(fs); /* always jump */
break;
}
case VJMP: {
invertjump(fs, e);
pc = e->u.s.info;
pc = e->u.info;
break;
}
case VK: case VKNUM: case VTRUE: {
pc = NO_JUMP; /* always true; do nothing */
break;
}
default: {
@ -564,20 +643,16 @@ void luaK_goiftrue (FuncState *fs, expdesc *e) {
}
static void luaK_goiffalse (FuncState *fs, expdesc *e) {
void luaK_goiffalse (FuncState *fs, expdesc *e) {
int pc; /* pc of last jump */
luaK_dischargevars(fs, e);
switch (e->k) {
case VNIL: case VFALSE: {
pc = NO_JUMP; /* always false; do nothing */
break;
}
case VTRUE: {
pc = luaK_jump(fs); /* always jump */
case VJMP: {
pc = e->u.info;
break;
}
case VJMP: {
pc = e->u.s.info;
case VNIL: case VFALSE: {
pc = NO_JUMP; /* always false; do nothing */
break;
}
default: {
@ -610,7 +685,7 @@ static void codenot (FuncState *fs, expdesc *e) {
case VNONRELOC: {
discharge2anyreg(fs, e);
freeexp(fs, e);
e->u.s.info = luaK_codeABC(fs, OP_NOT, 0, e->u.s.info, 0);
e->u.info = luaK_codeABC(fs, OP_NOT, 0, e->u.info, 0);
e->k = VRELOCABLE;
break;
}
@ -627,38 +702,28 @@ static void codenot (FuncState *fs, expdesc *e) {
void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k) {
t->u.s.aux = luaK_exp2RK(fs, k);
lua_assert(!hasjumps(t));
t->u.ind.t = t->u.info;
t->u.ind.idx = luaK_exp2RK(fs, k);
t->u.ind.vt = (t->k == VUPVAL) ? VUPVAL
: check_exp(vkisinreg(t->k), VLOCAL);
t->k = VINDEXED;
}
static int constfolding (OpCode op, expdesc *e1, expdesc *e2) {
lua_Number v1, v2, r;
lua_Number r;
if (!isnumeral(e1) || !isnumeral(e2)) return 0;
v1 = e1->u.nval;
v2 = e2->u.nval;
switch (op) {
case OP_ADD: r = luai_numadd(v1, v2); break;
case OP_SUB: r = luai_numsub(v1, v2); break;
case OP_MUL: r = luai_nummul(v1, v2); break;
case OP_DIV:
if (v2 == 0) return 0; /* do not attempt to divide by 0 */
r = luai_numdiv(v1, v2); break;
case OP_MOD:
if (v2 == 0) return 0; /* do not attempt to divide by 0 */
r = luai_nummod(v1, v2); break;
case OP_POW: r = luai_numpow(v1, v2); break;
case OP_UNM: r = luai_numunm(v1); break;
case OP_LEN: return 0; /* no constant folding for 'len' */
default: lua_assert(0); r = 0; break;
}
if (luai_numisnan(r)) return 0; /* do not attempt to produce NaN */
if ((op == OP_DIV || op == OP_MOD) && e2->u.nval == 0)
return 0; /* do not attempt to divide by 0 */
r = luaO_arith(op - OP_ADD + LUA_OPADD, e1->u.nval, e2->u.nval);
e1->u.nval = r;
return 1;
}
static void codearith (FuncState *fs, OpCode op, expdesc *e1, expdesc *e2) {
static void codearith (FuncState *fs, OpCode op,
expdesc *e1, expdesc *e2, int line) {
if (constfolding(op, e1, e2))
return;
else {
@ -672,8 +737,9 @@ static void codearith (FuncState *fs, OpCode op, expdesc *e1, expdesc *e2) {
freeexp(fs, e2);
freeexp(fs, e1);
}
e1->u.s.info = luaK_codeABC(fs, op, 0, o1, o2);
e1->u.info = luaK_codeABC(fs, op, 0, o1, o2);
e1->k = VRELOCABLE;
luaK_fixline(fs, line);
}
}
@ -689,25 +755,28 @@ static void codecomp (FuncState *fs, OpCode op, int cond, expdesc *e1,
temp = o1; o1 = o2; o2 = temp; /* o1 <==> o2 */
cond = 1;
}
e1->u.s.info = condjump(fs, op, cond, o1, o2);
e1->u.info = condjump(fs, op, cond, o1, o2);
e1->k = VJMP;
}
void luaK_prefix (FuncState *fs, UnOpr op, expdesc *e) {
void luaK_prefix (FuncState *fs, UnOpr op, expdesc *e, int line) {
expdesc e2;
e2.t = e2.f = NO_JUMP; e2.k = VKNUM; e2.u.nval = 0;
switch (op) {
case OPR_MINUS: {
if (!isnumeral(e))
luaK_exp2anyreg(fs, e); /* cannot operate on non-numeric constants */
codearith(fs, OP_UNM, e, &e2);
if (isnumeral(e)) /* minus constant? */
e->u.nval = luai_numunm(NULL, e->u.nval); /* fold it */
else {
luaK_exp2anyreg(fs, e);
codearith(fs, OP_UNM, e, &e2, line);
}
break;
}
case OPR_NOT: codenot(fs, e); break;
case OPR_LEN: {
luaK_exp2anyreg(fs, e); /* cannot operate on constants */
codearith(fs, OP_LEN, e, &e2);
codearith(fs, OP_LEN, e, &e2, line);
break;
}
default: lua_assert(0);
@ -742,7 +811,8 @@ void luaK_infix (FuncState *fs, BinOpr op, expdesc *v) {
}
void luaK_posfix (FuncState *fs, BinOpr op, expdesc *e1, expdesc *e2) {
void luaK_posfix (FuncState *fs, BinOpr op,
expdesc *e1, expdesc *e2, int line) {
switch (op) {
case OPR_AND: {
lua_assert(e1->t == NO_JUMP); /* list must be closed */
@ -761,66 +831,37 @@ void luaK_posfix (FuncState *fs, BinOpr op, expdesc *e1, expdesc *e2) {
case OPR_CONCAT: {
luaK_exp2val(fs, e2);
if (e2->k == VRELOCABLE && GET_OPCODE(getcode(fs, e2)) == OP_CONCAT) {
lua_assert(e1->u.s.info == GETARG_B(getcode(fs, e2))-1);
lua_assert(e1->u.info == GETARG_B(getcode(fs, e2))-1);
freeexp(fs, e1);
SETARG_B(getcode(fs, e2), e1->u.s.info);
e1->k = VRELOCABLE; e1->u.s.info = e2->u.s.info;
SETARG_B(getcode(fs, e2), e1->u.info);
e1->k = VRELOCABLE; e1->u.info = e2->u.info;
}
else {
luaK_exp2nextreg(fs, e2); /* operand must be on the 'stack' */
codearith(fs, OP_CONCAT, e1, e2);
}
break;
}
case OPR_ADD: codearith(fs, OP_ADD, e1, e2); break;
case OPR_SUB: codearith(fs, OP_SUB, e1, e2); break;
case OPR_MUL: codearith(fs, OP_MUL, e1, e2); break;
case OPR_DIV: codearith(fs, OP_DIV, e1, e2); break;
case OPR_MOD: codearith(fs, OP_MOD, e1, e2); break;
case OPR_POW: codearith(fs, OP_POW, e1, e2); break;
case OPR_EQ: codecomp(fs, OP_EQ, 1, e1, e2); break;
case OPR_NE: codecomp(fs, OP_EQ, 0, e1, e2); break;
case OPR_LT: codecomp(fs, OP_LT, 1, e1, e2); break;
case OPR_LE: codecomp(fs, OP_LE, 1, e1, e2); break;
case OPR_GT: codecomp(fs, OP_LT, 0, e1, e2); break;
case OPR_GE: codecomp(fs, OP_LE, 0, e1, e2); break;
default: lua_assert(0);
codearith(fs, OP_CONCAT, e1, e2, line);
}
break;
}
void luaK_fixline (FuncState *fs, int line) {
fs->f->lineinfo[fs->pc - 1] = line;
case OPR_ADD: case OPR_SUB: case OPR_MUL: case OPR_DIV:
case OPR_MOD: case OPR_POW: {
codearith(fs, cast(OpCode, op - OPR_ADD + OP_ADD), e1, e2, line);
break;
}
static int luaK_code (FuncState *fs, Instruction i, int line) {
Proto *f = fs->f;
dischargejpc(fs); /* `pc' will change */
/* put new instruction in code array */
luaM_growvector(fs->L, f->code, fs->pc, f->sizecode, Instruction,
MAX_INT, "code size overflow");
f->code[fs->pc] = i;
/* save corresponding line information */
luaM_growvector(fs->L, f->lineinfo, fs->pc, f->sizelineinfo, int,
MAX_INT, "code size overflow");
f->lineinfo[fs->pc] = line;
return fs->pc++;
case OPR_EQ: case OPR_LT: case OPR_LE: {
codecomp(fs, cast(OpCode, op - OPR_EQ + OP_EQ), 1, e1, e2);
break;
}
case OPR_NE: case OPR_GT: case OPR_GE: {
codecomp(fs, cast(OpCode, op - OPR_NE + OP_EQ), 0, e1, e2);
break;
}
default: lua_assert(0);
}
int luaK_codeABC (FuncState *fs, OpCode o, int a, int b, int c) {
lua_assert(getOpMode(o) == iABC);
lua_assert(getBMode(o) != OpArgN || b == 0);
lua_assert(getCMode(o) != OpArgN || c == 0);
return luaK_code(fs, CREATE_ABC(o, a, b, c), fs->ls->lastline);
}
int luaK_codeABx (FuncState *fs, OpCode o, int a, unsigned int bc) {
lua_assert(getOpMode(o) == iABx || getOpMode(o) == iAsBx);
lua_assert(getCMode(o) == OpArgN);
return luaK_code(fs, CREATE_ABx(o, a, bc), fs->ls->lastline);
void luaK_fixline (FuncState *fs, int line) {
fs->f->lineinfo[fs->pc - 1] = line;
}
@ -830,10 +871,12 @@ void luaK_setlist (FuncState *fs, int base, int nelems, int tostore) {
lua_assert(tostore != 0);
if (c <= MAXARG_C)
luaK_codeABC(fs, OP_SETLIST, base, b, c);
else {
else if (c <= MAXARG_Ax) {
luaK_codeABC(fs, OP_SETLIST, base, b, 0);
luaK_code(fs, cast(Instruction, c), fs->ls->lastline);
codeextraarg(fs, c);
}
else
luaX_syntaxerror(fs->ls, "constructor too long");
fs->freereg = base + 1; /* free registers with list values */
}

154
depends/lua/src/lcorolib.c
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@ -0,0 +1,154 @@
/*
** $Id: lcorolib.c,v 1.3 2011/08/23 17:24:34 roberto Exp $
** Coroutine Library
** See Copyright Notice in lua.h
*/
#include <stdlib.h>
#define lcorolib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
static int auxresume (lua_State *L, lua_State *co, int narg) {
int status;
if (!lua_checkstack(co, narg)) {
lua_pushliteral(L, "too many arguments to resume");
return -1; /* error flag */
}
if (lua_status(co) == LUA_OK && lua_gettop(co) == 0) {
lua_pushliteral(L, "cannot resume dead coroutine");
return -1; /* error flag */
}
lua_xmove(L, co, narg);
status = lua_resume(co, L, narg);
if (status == LUA_OK || status == LUA_YIELD) {
int nres = lua_gettop(co);
if (!lua_checkstack(L, nres + 1)) {
lua_pop(co, nres); /* remove results anyway */
lua_pushliteral(L, "too many results to resume");
return -1; /* error flag */
}
lua_xmove(co, L, nres); /* move yielded values */
return nres;
}
else {
lua_xmove(co, L, 1); /* move error message */
return -1; /* error flag */
}
}
static int luaB_coresume (lua_State *L) {
lua_State *co = lua_tothread(L, 1);
int r;
luaL_argcheck(L, co, 1, "coroutine expected");
r = auxresume(L, co, lua_gettop(L) - 1);
if (r < 0) {
lua_pushboolean(L, 0);
lua_insert(L, -2);
return 2; /* return false + error message */
}
else {
lua_pushboolean(L, 1);
lua_insert(L, -(r + 1));
return r + 1; /* return true + `resume' returns */
}
}
static int luaB_auxwrap (lua_State *L) {
lua_State *co = lua_tothread(L, lua_upvalueindex(1));
int r = auxresume(L, co, lua_gettop(L));
if (r < 0) {
if (lua_isstring(L, -1)) { /* error object is a string? */
luaL_where(L, 1); /* add extra info */
lua_insert(L, -2);
lua_concat(L, 2);
}
lua_error(L); /* propagate error */
}
return r;
}
static int luaB_cocreate (lua_State *L) {
lua_State *NL = lua_newthread(L);
luaL_checktype(L, 1, LUA_TFUNCTION);
lua_pushvalue(L, 1); /* move function to top */
lua_xmove(L, NL, 1); /* move function from L to NL */
return 1;
}
static int luaB_cowrap (lua_State *L) {
luaB_cocreate(L);
lua_pushcclosure(L, luaB_auxwrap, 1);
return 1;
}
static int luaB_yield (lua_State *L) {
return lua_yield(L, lua_gettop(L));
}
static int luaB_costatus (lua_State *L) {
lua_State *co = lua_tothread(L, 1);
luaL_argcheck(L, co, 1, "coroutine expected");
if (L == co) lua_pushliteral(L, "running");
else {
switch (lua_status(co)) {
case LUA_YIELD:
lua_pushliteral(L, "suspended");
break;
case LUA_OK: {
lua_Debug ar;
if (lua_getstack(co, 0, &ar) > 0) /* does it have frames? */
lua_pushliteral(L, "normal"); /* it is running */
else if (lua_gettop(co) == 0)
lua_pushliteral(L, "dead");
else
lua_pushliteral(L, "suspended"); /* initial state */
break;
}
default: /* some error occurred */
lua_pushliteral(L, "dead");
break;
}
}
return 1;
}
static int luaB_corunning (lua_State *L) {
int ismain = lua_pushthread(L);
lua_pushboolean(L, ismain);
return 2;
}
static const luaL_Reg co_funcs[] = {
{"create", luaB_cocreate},
{"resume", luaB_coresume},
{"running", luaB_corunning},
{"status", luaB_costatus},
{"wrap", luaB_cowrap},
{"yield", luaB_yield},
{NULL, NULL}
};
LUAMOD_API int luaopen_coroutine (lua_State *L) {
luaL_newlib(L, co_funcs);
return 1;
}

52
depends/lua/src/lctype.c
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@ -0,0 +1,52 @@
/*
** $Id: lctype.c,v 1.11 2011/10/03 16:19:23 roberto Exp $
** 'ctype' functions for Lua
** See Copyright Notice in lua.h
*/
#define lctype_c
#define LUA_CORE
#include "lctype.h"
#if !LUA_USE_CTYPE /* { */
#include <limits.h>
LUAI_DDEF const lu_byte luai_ctype_[UCHAR_MAX + 2] = {
0x00, /* EOZ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0. */
0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 1. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0c, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, /* 2. */
0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
0x16, 0x16, 0x16, 0x16, 0x16, 0x16, 0x16, 0x16, /* 3. */
0x16, 0x16, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
0x04, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x05, /* 4. */
0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, /* 5. */
0x05, 0x05, 0x05, 0x04, 0x04, 0x04, 0x04, 0x05,
0x04, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x05, /* 6. */
0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, /* 7. */
0x05, 0x05, 0x05, 0x04, 0x04, 0x04, 0x04, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 8. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 9. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* a. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* b. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* c. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* d. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* e. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* f. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
#endif /* } */

190
depends/lua/src/ldblib.c
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@ -1,5 +1,5 @@
/*
** $Id: ldblib.c,v 1.104.1.3 2008/01/21 13:11:21 roberto Exp $
** $Id: ldblib.c,v 1.131 2011/10/24 14:54:05 roberto Exp $
** Interface from Lua to its debug API
** See Copyright Notice in lua.h
*/
@ -18,6 +18,9 @@
#include "lualib.h"
#define HOOKKEY "_HKEY"
static int db_getregistry (lua_State *L) {
lua_pushvalue(L, LUA_REGISTRYINDEX);
@ -39,23 +42,28 @@ static int db_setmetatable (lua_State *L) {
luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2,
"nil or table expected");
lua_settop(L, 2);
lua_pushboolean(L, lua_setmetatable(L, 1));
return 1;
lua_setmetatable(L, 1);
return 1; /* return 1st argument */
}
static int db_getfenv (lua_State *L) {
lua_getfenv(L, 1);
static int db_getuservalue (lua_State *L) {
if (lua_type(L, 1) != LUA_TUSERDATA)
lua_pushnil(L);
else
lua_getuservalue(L, 1);
return 1;
}
static int db_setfenv (lua_State *L) {
static int db_setuservalue (lua_State *L) {
if (lua_type(L, 1) == LUA_TLIGHTUSERDATA)
luaL_argerror(L, 1, "full userdata expected, got light userdata");
luaL_checktype(L, 1, LUA_TUSERDATA);
if (!lua_isnoneornil(L, 2))
luaL_checktype(L, 2, LUA_TTABLE);
lua_settop(L, 2);
if (lua_setfenv(L, 1) == 0)
luaL_error(L, LUA_QL("setfenv")
" cannot change environment of given object");
lua_setuservalue(L, 1);
return 1;
}
@ -72,6 +80,12 @@ static void settabsi (lua_State *L, const char *i, int v) {
}
static void settabsb (lua_State *L, const char *i, int v) {
lua_pushboolean(L, v);
lua_setfield(L, -2, i);
}
static lua_State *getthread (lua_State *L, int *arg) {
if (lua_isthread(L, 1)) {
*arg = 1;
@ -99,7 +113,7 @@ static int db_getinfo (lua_State *L) {
lua_Debug ar;
int arg;
lua_State *L1 = getthread(L, &arg);
const char *options = luaL_optstring(L, arg+2, "flnSu");
const char *options = luaL_optstring(L, arg+2, "flnStu");
if (lua_isnumber(L, arg+1)) {
if (!lua_getstack(L1, (int)lua_tointeger(L, arg+1), &ar)) {
lua_pushnil(L); /* level out of range */
@ -126,12 +140,17 @@ static int db_getinfo (lua_State *L) {
}
if (strchr(options, 'l'))
settabsi(L, "currentline", ar.currentline);
if (strchr(options, 'u'))
if (strchr(options, 'u')) {
settabsi(L, "nups", ar.nups);
settabsi(L, "nparams", ar.nparams);
settabsb(L, "isvararg", ar.isvararg);
}
if (strchr(options, 'n')) {
settabss(L, "name", ar.name);
settabss(L, "namewhat", ar.namewhat);
}
if (strchr(options, 't'))
settabsb(L, "istailcall", ar.istailcall);
if (strchr(options, 'L'))
treatstackoption(L, L1, "activelines");
if (strchr(options, 'f'))
@ -145,20 +164,28 @@ static int db_getlocal (lua_State *L) {
lua_State *L1 = getthread(L, &arg);
lua_Debug ar;
const char *name;
int nvar = luaL_checkint(L, arg+2); /* local-variable index */
if (lua_isfunction(L, arg + 1)) { /* function argument? */
lua_pushvalue(L, arg + 1); /* push function */
lua_pushstring(L, lua_getlocal(L, NULL, nvar)); /* push local name */
return 1;
}
else { /* stack-level argument */
if (!lua_getstack(L1, luaL_checkint(L, arg+1), &ar)) /* out of range? */
return luaL_argerror(L, arg+1, "level out of range");
name = lua_getlocal(L1, &ar, luaL_checkint(L, arg+2));
name = lua_getlocal(L1, &ar, nvar);
if (name) {
lua_xmove(L1, L, 1);
lua_pushstring(L, name);
lua_pushvalue(L, -2);
lua_xmove(L1, L, 1); /* push local value */
lua_pushstring(L, name); /* push name */
lua_pushvalue(L, -2); /* re-order */
return 2;
}
else {
lua_pushnil(L);
lua_pushnil(L); /* no name (nor value) */
return 1;
}
}
}
static int db_setlocal (lua_State *L) {
@ -179,7 +206,6 @@ static int auxupvalue (lua_State *L, int get) {
const char *name;
int n = luaL_checkint(L, 2);
luaL_checktype(L, 1, LUA_TFUNCTION);
if (lua_iscfunction(L, 1)) return 0; /* cannot touch C upvalues from Lua */
name = get ? lua_getupvalue(L, 1, n) : lua_setupvalue(L, 1, n);
if (name == NULL) return 0;
lua_pushstring(L, name);
@ -199,17 +225,42 @@ static int db_setupvalue (lua_State *L) {
}
static int checkupval (lua_State *L, int argf, int argnup) {
lua_Debug ar;
int nup = luaL_checkint(L, argnup);
luaL_checktype(L, argf, LUA_TFUNCTION);
lua_pushvalue(L, argf);
lua_getinfo(L, ">u", &ar);
luaL_argcheck(L, 1 <= nup && nup <= ar.nups, argnup, "invalid upvalue index");
return nup;
}
static int db_upvalueid (lua_State *L) {
int n = checkupval(L, 1, 2);
lua_pushlightuserdata(L, lua_upvalueid(L, 1, n));
return 1;
}
static int db_upvaluejoin (lua_State *L) {
int n1 = checkupval(L, 1, 2);
int n2 = checkupval(L, 3, 4);
luaL_argcheck(L, !lua_iscfunction(L, 1), 1, "Lua function expected");
luaL_argcheck(L, !lua_iscfunction(L, 3), 3, "Lua function expected");
lua_upvaluejoin(L, 1, n1, 3, n2);
return 0;
}
static const char KEY_HOOK = 'h';
#define gethooktable(L) luaL_getsubtable(L, LUA_REGISTRYINDEX, HOOKKEY);
static void hookf (lua_State *L, lua_Debug *ar) {
static const char *const hooknames[] =
{"call", "return", "line", "count", "tail return"};
lua_pushlightuserdata(L, (void *)&KEY_HOOK);
lua_rawget(L, LUA_REGISTRYINDEX);
lua_pushlightuserdata(L, L);
lua_rawget(L, -2);
{"call", "return", "line", "count", "tail call"};
gethooktable(L);
lua_rawgetp(L, -1, L);
if (lua_isfunction(L, -1)) {
lua_pushstring(L, hooknames[(int)ar->event]);
if (ar->currentline >= 0)
@ -241,19 +292,6 @@ static char *unmakemask (int mask, char *smask) {
}
static void gethooktable (lua_State *L) {
lua_pushlightuserdata(L, (void *)&KEY_HOOK);
lua_rawget(L, LUA_REGISTRYINDEX);
if (!lua_istable(L, -1)) {
lua_pop(L, 1);
lua_createtable(L, 0, 1);
lua_pushlightuserdata(L, (void *)&KEY_HOOK);
lua_pushvalue(L, -2);
lua_rawset(L, LUA_REGISTRYINDEX);
}
}
static int db_sethook (lua_State *L) {
int arg, mask, count;
lua_Hook func;
@ -269,9 +307,8 @@ static int db_sethook (lua_State *L) {
func = hookf; mask = makemask(smask, count);
}
gethooktable(L);
lua_pushlightuserdata(L, L1);
lua_pushvalue(L, arg+1);
lua_rawset(L, -3); /* set new hook */
lua_rawsetp(L, -2, L1); /* set new hook */
lua_pop(L, 1); /* remove hook table */
lua_sethook(L1, func, mask, count); /* set hooks */
return 0;
@ -288,8 +325,7 @@ static int db_gethook (lua_State *L) {
lua_pushliteral(L, "external hook");
else {
gethooktable(L);
lua_pushlightuserdata(L, L1);
lua_rawget(L, -2); /* get hook */
lua_rawgetp(L, -1, L1); /* get hook */
lua_remove(L, -2); /* remove hook table */
}
lua_pushstring(L, unmakemask(mask, buff));
@ -301,97 +337,55 @@ static int db_gethook (lua_State *L) {
static int db_debug (lua_State *L) {
for (;;) {
char buffer[250];
fputs("lua_debug> ", stderr);
luai_writestringerror("%s", "lua_debug> ");
if (fgets(buffer, sizeof(buffer), stdin) == 0 ||
strcmp(buffer, "cont\n") == 0)
return 0;
if (luaL_loadbuffer(L, buffer, strlen(buffer), "=(debug command)") ||
lua_pcall(L, 0, 0, 0)) {
fputs(lua_tostring(L, -1), stderr);
fputs("\n", stderr);
}
lua_pcall(L, 0, 0, 0))
luai_writestringerror("%s\n", lua_tostring(L, -1));
lua_settop(L, 0); /* remove eventual returns */
}
}
#define LEVELS1 12 /* size of the first part of the stack */
#define LEVELS2 10 /* size of the second part of the stack */
static int db_errorfb (lua_State *L) {
int level;
int firstpart = 1; /* still before eventual `...' */
static int db_traceback (lua_State *L) {
int arg;
lua_State *L1 = getthread(L, &arg);
lua_Debug ar;
if (lua_isnumber(L, arg+2)) {
level = (int)lua_tointeger(L, arg+2);
lua_pop(L, 1);
}
else
level = (L == L1) ? 1 : 0; /* level 0 may be this own function */
if (lua_gettop(L) == arg)
lua_pushliteral(L, "");
else if (!lua_isstring(L, arg+1)) return 1; /* message is not a string */
else lua_pushliteral(L, "\n");
lua_pushliteral(L, "stack traceback:");
while (lua_getstack(L1, level++, &ar)) {
if (level > LEVELS1 && firstpart) {
/* no more than `LEVELS2' more levels? */
if (!lua_getstack(L1, level+LEVELS2, &ar))
level--; /* keep going */
else {
lua_pushliteral(L, "\n\t..."); /* too many levels */
while (lua_getstack(L1, level+LEVELS2, &ar)) /* find last levels */
level++;
}
firstpart = 0;
continue;
}
lua_pushliteral(L, "\n\t");
lua_getinfo(L1, "Snl", &ar);
lua_pushfstring(L, "%s:", ar.short_src);
if (ar.currentline > 0)
lua_pushfstring(L, "%d:", ar.currentline);
if (*ar.namewhat != '\0') /* is there a name? */
lua_pushfstring(L, " in function " LUA_QS, ar.name);
const char *msg = lua_tostring(L, arg + 1);
if (msg == NULL && !lua_isnoneornil(L, arg + 1)) /* non-string 'msg'? */
lua_pushvalue(L, arg + 1); /* return it untouched */
else {
if (*ar.what == 'm') /* main? */
lua_pushfstring(L, " in main chunk");
else if (*ar.what == 'C' || *ar.what == 't')
lua_pushliteral(L, " ?"); /* C function or tail call */
else
lua_pushfstring(L, " in function <%s:%d>",
ar.short_src, ar.linedefined);
}
lua_concat(L, lua_gettop(L) - arg);
int level = luaL_optint(L, arg + 2, (L == L1) ? 1 : 0);
luaL_traceback(L, L1, msg, level);
}
lua_concat(L, lua_gettop(L) - arg);
return 1;
}
static const luaL_Reg dblib[] = {
{"debug", db_debug},
{"getfenv", db_getfenv},
{"getuservalue", db_getuservalue},
{"gethook", db_gethook},
{"getinfo", db_getinfo},
{"getlocal", db_getlocal},
{"getregistry", db_getregistry},
{"getmetatable", db_getmetatable},
{"getupvalue", db_getupvalue},
{"setfenv", db_setfenv},
{"upvaluejoin", db_upvaluejoin},
{"upvalueid", db_upvalueid},
{"setuservalue", db_setuservalue},
{"sethook", db_sethook},
{"setlocal", db_setlocal},
{"setmetatable", db_setmetatable},
{"setupvalue", db_setupvalue},
{"traceback", db_errorfb},
{"traceback", db_traceback},
{NULL, NULL}
};
LUALIB_API int luaopen_debug (lua_State *L) {
luaL_register(L, LUA_DBLIBNAME, dblib);
LUAMOD_API int luaopen_debug (lua_State *L) {
luaL_newlib(L, dblib);
return 1;
}

601
depends/lua/src/ldebug.c
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@ -1,5 +1,5 @@
/*
** $Id: ldebug.c,v 2.29.1.6 2008/05/08 16:56:26 roberto Exp $
** $Id: ldebug.c,v 2.88 2011/11/30 12:43:51 roberto Exp $
** Debug Interface
** See Copyright Notice in lua.h
*/
@ -33,20 +33,14 @@
static const char *getfuncname (lua_State *L, CallInfo *ci, const char **name);
static int currentpc (lua_State *L, CallInfo *ci) {
if (!isLua(ci)) return -1; /* function is not a Lua function? */
if (ci == L->ci)
ci->savedpc = L->savedpc;
return pcRel(ci->savedpc, ci_func(ci)->l.p);
static int currentpc (CallInfo *ci) {
lua_assert(isLua(ci));
return pcRel(ci->u.l.savedpc, ci_func(ci)->p);
}
static int currentline (lua_State *L, CallInfo *ci) {
int pc = currentpc(L, ci);
if (pc < 0)
return -1; /* only active lua functions have current-line information */
else
return getline(ci_func(ci)->l.p, pc);
static int currentline (CallInfo *ci) {
return getfuncline(ci_func(ci)->p, currentpc(ci));
}
@ -58,6 +52,8 @@ LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count) {
mask = 0;
func = NULL;
}
if (isLua(L->ci))
L->oldpc = L->ci->u.l.savedpc;
L->hook = func;
L->basehookcount = count;
resethookcount(L);
@ -84,19 +80,13 @@ LUA_API int lua_gethookcount (lua_State *L) {
LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar) {
int status;
CallInfo *ci;
if (level < 0) return 0; /* invalid (negative) level */
lua_lock(L);
for (ci = L->ci; level > 0 && ci > L->base_ci; ci--) {
for (ci = L->ci; level > 0 && ci != &L->base_ci; ci = ci->previous)
level--;
if (f_isLua(ci)) /* Lua function? */
level -= ci->tailcalls; /* skip lost tail calls */
}
if (level == 0 && ci > L->base_ci) { /* level found? */
if (level == 0 && ci != &L->base_ci) { /* level found? */
status = 1;
ar->i_ci = cast_int(ci - L->base_ci);
}
else if (level < 0) { /* level is of a lost tail call? */
status = 1;
ar->i_ci = 0;
ar->i_ci = ci;
}
else status = 0; /* no such level */
lua_unlock(L);
@ -104,43 +94,78 @@ LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar) {
}
static Proto *getluaproto (CallInfo *ci) {
return (isLua(ci) ? ci_func(ci)->l.p : NULL);
static const char *upvalname (Proto *p, int uv) {
TString *s = check_exp(uv < p->sizeupvalues, p->upvalues[uv].name);
if (s == NULL) return "?";
else return getstr(s);
}
static const char *findlocal (lua_State *L, CallInfo *ci, int n) {
const char *name;
Proto *fp = getluaproto(ci);
if (fp && (name = luaF_getlocalname(fp, n, currentpc(L, ci))) != NULL)
return name; /* is a local variable in a Lua function */
static const char *findvararg (CallInfo *ci, int n, StkId *pos) {
int nparams = clLvalue(ci->func)->p->numparams;
if (n >= ci->u.l.base - ci->func - nparams)
return NULL; /* no such vararg */
else {
StkId limit = (ci == L->ci) ? L->top : (ci+1)->func;
if (limit - ci->base >= n && n > 0) /* is 'n' inside 'ci' stack? */
return "(*temporary)";
*pos = ci->func + nparams + n;
return "(*vararg)"; /* generic name for any vararg */
}
}
static const char *findlocal (lua_State *L, CallInfo *ci, int n,
StkId *pos) {
const char *name = NULL;
StkId base;
if (isLua(ci)) {
if (n < 0) /* access to vararg values? */
return findvararg(ci, -n, pos);
else {
base = ci->u.l.base;
name = luaF_getlocalname(ci_func(ci)->p, n, currentpc(ci));
}
}
else
return NULL;
base = ci->func + 1;
if (name == NULL) { /* no 'standard' name? */
StkId limit = (ci == L->ci) ? L->top : ci->next->func;
if (limit - base >= n && n > 0) /* is 'n' inside 'ci' stack? */
name = "(*temporary)"; /* generic name for any valid slot */
else
return NULL; /* no name */
}
*pos = base + (n - 1);
return name;
}
LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n) {
CallInfo *ci = L->base_ci + ar->i_ci;
const char *name = findlocal(L, ci, n);
const char *name;
lua_lock(L);
if (name)
luaA_pushobject(L, ci->base + (n - 1));
if (ar == NULL) { /* information about non-active function? */
if (!isLfunction(L->top - 1)) /* not a Lua function? */
name = NULL;
else /* consider live variables at function start (parameters) */
name = luaF_getlocalname(clLvalue(L->top - 1)->p, n, 0);
}
else { /* active function; get information through 'ar' */
StkId pos = 0; /* to avoid warnings */
name = findlocal(L, ar->i_ci, n, &pos);
if (name) {
setobj2s(L, L->top, pos);
api_incr_top(L);
}
}
lua_unlock(L);
return name;
}
LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n) {
CallInfo *ci = L->base_ci + ar->i_ci;
const char *name = findlocal(L, ci, n);
StkId pos = 0; /* to avoid warnings */
const char *name = findlocal(L, ar->i_ci, n, &pos);
lua_lock(L);
if (name)
setobjs2s(L, ci->base + (n - 1), L->top - 1);
setobjs2s(L, pos, L->top - 1);
L->top--; /* pop value */
lua_unlock(L);
return name;
@ -148,55 +173,45 @@ LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n) {
static void funcinfo (lua_Debug *ar, Closure *cl) {
if (cl->c.isC) {
if (cl == NULL || cl->c.isC) {
ar->source = "=[C]";
ar->linedefined = -1;
ar->lastlinedefined = -1;
ar->what = "C";
}
else {
ar->source = getstr(cl->l.p->source);
ar->linedefined = cl->l.p->linedefined;
ar->lastlinedefined = cl->l.p->lastlinedefined;
Proto *p = cl->l.p;
ar->source = p->source ? getstr(p->source) : "=?";
ar->linedefined = p->linedefined;
ar->lastlinedefined = p->lastlinedefined;
ar->what = (ar->linedefined == 0) ? "main" : "Lua";
}
luaO_chunkid(ar->short_src, ar->source, LUA_IDSIZE);
}
static void info_tailcall (lua_Debug *ar) {
ar->name = ar->namewhat = "";
ar->what = "tail";
ar->lastlinedefined = ar->linedefined = ar->currentline = -1;
ar->source = "=(tail call)";
luaO_chunkid(ar->short_src, ar->source, LUA_IDSIZE);
ar->nups = 0;
}
static void collectvalidlines (lua_State *L, Closure *f) {
if (f == NULL || f->c.isC) {
setnilvalue(L->top);
incr_top(L);
}
else {
Table *t = luaH_new(L, 0, 0);
int *lineinfo = f->l.p->lineinfo;
int i;
for (i=0; i<f->l.p->sizelineinfo; i++)
setbvalue(luaH_setnum(L, t, lineinfo[i]), 1);
sethvalue(L, L->top, t);
}
TValue v;
int *lineinfo = f->l.p->lineinfo;
Table *t = luaH_new(L); /* new table to store active lines */
sethvalue(L, L->top, t); /* push it on stack */
incr_top(L);
setbvalue(&v, 1); /* boolean 'true' to be the value of all indices */
for (i = 0; i < f->l.p->sizelineinfo; i++) /* for all lines with code */
luaH_setint(L, t, lineinfo[i], &v); /* table[line] = true */
}
}
static int auxgetinfo (lua_State *L, const char *what, lua_Debug *ar,
Closure *f, CallInfo *ci) {
int status = 1;
if (f == NULL) {
info_tailcall(ar);
return status;
}
for (; *what; what++) {
switch (*what) {
case 'S': {
@ -204,15 +219,31 @@ static int auxgetinfo (lua_State *L, const char *what, lua_Debug *ar,
break;
}
case 'l': {
ar->currentline = (ci) ? currentline(L, ci) : -1;
ar->currentline = (ci && isLua(ci)) ? currentline(ci) : -1;
break;
}
case 'u': {
ar->nups = f->c.nupvalues;
ar->nups = (f == NULL) ? 0 : f->c.nupvalues;
if (f == NULL || f->c.isC) {
ar->isvararg = 1;
ar->nparams = 0;
}
else {
ar->isvararg = f->l.p->is_vararg;
ar->nparams = f->l.p->numparams;
}
break;
}
case 't': {
ar->istailcall = (ci) ? ci->callstatus & CIST_TAIL : 0;
break;
}
case 'n': {
ar->namewhat = (ci) ? getfuncname(L, ci, &ar->name) : NULL;
/* calling function is a known Lua function? */
if (ci && !(ci->callstatus & CIST_TAIL) && isLua(ci->previous))
ar->namewhat = getfuncname(L, ci->previous, &ar->name);
else
ar->namewhat = NULL;
if (ar->namewhat == NULL) {
ar->namewhat = ""; /* not found */
ar->name = NULL;
@ -231,29 +262,30 @@ static int auxgetinfo (lua_State *L, const char *what, lua_Debug *ar,
LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar) {
int status;
Closure *f = NULL;
CallInfo *ci = NULL;
Closure *cl;
CallInfo *ci;
StkId func;
lua_lock(L);
if (*what == '>') {
StkId func = L->top - 1;
luai_apicheck(L, ttisfunction(func));
ci = NULL;
func = L->top - 1;
api_check(L, ttisfunction(func), "function expected");
what++; /* skip the '>' */
f = clvalue(func);
L->top--; /* pop function */
}
else if (ar->i_ci != 0) { /* no tail call? */
ci = L->base_ci + ar->i_ci;
else {
ci = ar->i_ci;
func = ci->func;
lua_assert(ttisfunction(ci->func));
f = clvalue(ci->func);
}
status = auxgetinfo(L, what, ar, f, ci);
cl = ttisclosure(func) ? clvalue(func) : NULL;
status = auxgetinfo(L, what, ar, cl, ci);
if (strchr(what, 'f')) {
if (f == NULL) setnilvalue(L->top);
else setclvalue(L, L->top, f);
setobjs2s(L, L->top, func);
incr_top(L);
}
if (strchr(what, 'L'))
collectvalidlines(L, f);
collectvalidlines(L, cl);
lua_unlock(L);
return status;
}
@ -261,315 +293,218 @@ LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar) {
/*
** {======================================================
** Symbolic Execution and code checker
** Symbolic Execution
** =======================================================
*/
#define check(x) if (!(x)) return 0;
#define checkjump(pt,pc) check(0 <= pc && pc < pt->sizecode)
#define checkreg(pt,reg) check((reg) < (pt)->maxstacksize)
static const char *getobjname (Proto *p, int lastpc, int reg,
const char **name);
static int precheck (const Proto *pt) {
check(pt->maxstacksize <= MAXSTACK);
check(pt->numparams+(pt->is_vararg & VARARG_HASARG) <= pt->maxstacksize);
check(!(pt->is_vararg & VARARG_NEEDSARG) ||
(pt->is_vararg & VARARG_HASARG));
check(pt->sizeupvalues <= pt->nups);
check(pt->sizelineinfo == pt->sizecode || pt->sizelineinfo == 0);
check(pt->sizecode > 0 && GET_OPCODE(pt->code[pt->sizecode-1]) == OP_RETURN);
return 1;
}
#define checkopenop(pt,pc) luaG_checkopenop((pt)->code[(pc)+1])
int luaG_checkopenop (Instruction i) {
switch (GET_OPCODE(i)) {
case OP_CALL:
case OP_TAILCALL:
case OP_RETURN:
case OP_SETLIST: {
check(GETARG_B(i) == 0);
return 1;
/*
** find a "name" for the RK value 'c'
*/
static void kname (Proto *p, int pc, int c, const char **name) {
if (ISK(c)) { /* is 'c' a constant? */
TValue *kvalue = &p->k[INDEXK(c)];
if (ttisstring(kvalue)) { /* literal constant? */
*name = svalue(kvalue); /* it is its own name */
return;
}
default: return 0; /* invalid instruction after an open call */
/* else no reasonable name found */
}
else { /* 'c' is a register */
const char *what = getobjname(p, pc, c, name); /* search for 'c' */
if (what && *what == 'c') { /* found a constant name? */
return; /* 'name' already filled */
}
static int checkArgMode (const Proto *pt, int r, enum OpArgMask mode) {
switch (mode) {
case OpArgN: check(r == 0); break;
case OpArgU: break;
case OpArgR: checkreg(pt, r); break;
case OpArgK:
check(ISK(r) ? INDEXK(r) < pt->sizek : r < pt->maxstacksize);
break;
/* else no reasonable name found */
}
return 1;
*name = "?"; /* no reasonable name found */
}
static Instruction symbexec (const Proto *pt, int lastpc, int reg) {
/*
** try to find last instruction before 'lastpc' that modified register 'reg'
*/
static int findsetreg (Proto *p, int lastpc, int reg) {
int pc;
int last; /* stores position of last instruction that changed `reg' */
last = pt->sizecode-1; /* points to final return (a `neutral' instruction) */
check(precheck(pt));
int setreg = -1; /* keep last instruction that changed 'reg' */
for (pc = 0; pc < lastpc; pc++) {
Instruction i = pt->code[pc];
Instruction i = p->code[pc];
OpCode op = GET_OPCODE(i);
int a = GETARG_A(i);
int b = 0;
int c = 0;
check(op < NUM_OPCODES);
checkreg(pt, a);
switch (getOpMode(op)) {
case iABC: {
b = GETARG_B(i);
c = GETARG_C(i);
check(checkArgMode(pt, b, getBMode(op)));
check(checkArgMode(pt, c, getCMode(op)));
break;
}
case iABx: {
b = GETARG_Bx(i);
if (getBMode(op) == OpArgK) check(b < pt->sizek);
break;
}
case iAsBx: {
b = GETARG_sBx(i);
if (getBMode(op) == OpArgR) {
int dest = pc+1+b;
check(0 <= dest && dest < pt->sizecode);
if (dest > 0) {
int j;
/* check that it does not jump to a setlist count; this
is tricky, because the count from a previous setlist may
have the same value of an invalid setlist; so, we must
go all the way back to the first of them (if any) */
for (j = 0; j < dest; j++) {
Instruction d = pt->code[dest-1-j];
if (!(GET_OPCODE(d) == OP_SETLIST && GETARG_C(d) == 0)) break;
}
/* if 'j' is even, previous value is not a setlist (even if
it looks like one) */
check((j&1) == 0);
}
}
break;
}
}
if (testAMode(op)) {
if (a == reg) last = pc; /* change register `a' */
}
if (testTMode(op)) {
check(pc+2 < pt->sizecode); /* check skip */
check(GET_OPCODE(pt->code[pc+1]) == OP_JMP);
}
switch (op) {
case OP_LOADBOOL: {
if (c == 1) { /* does it jump? */
check(pc+2 < pt->sizecode); /* check its jump */
check(GET_OPCODE(pt->code[pc+1]) != OP_SETLIST ||
GETARG_C(pt->code[pc+1]) != 0);
}
break;
}
case OP_LOADNIL: {
if (a <= reg && reg <= b)
last = pc; /* set registers from `a' to `b' */
break;
}
case OP_GETUPVAL:
case OP_SETUPVAL: {
check(b < pt->nups);
int b = GETARG_B(i);
if (a <= reg && reg <= a + b) /* set registers from 'a' to 'a+b' */
setreg = pc;
break;
}
case OP_GETGLOBAL:
case OP_SETGLOBAL: {
check(ttisstring(&pt->k[b]));
case OP_TFORCALL: {
if (reg >= a + 2) setreg = pc; /* affect all regs above its base */
break;
}
case OP_SELF: {
checkreg(pt, a+1);
if (reg == a+1) last = pc;
break;
}
case OP_CONCAT: {
check(b < c); /* at least two operands */
break;
}
case OP_TFORLOOP: {
check(c >= 1); /* at least one result (control variable) */
checkreg(pt, a+2+c); /* space for results */
if (reg >= a+2) last = pc; /* affect all regs above its base */
case OP_CALL:
case OP_TAILCALL: {
if (reg >= a) setreg = pc; /* affect all registers above base */
break;
}
case OP_FORLOOP:
case OP_FORPREP:
checkreg(pt, a+3);
/* go through */
case OP_JMP: {
int b = GETARG_sBx(i);
int dest = pc + 1 + b;
/* not full check and jump is forward and do not skip `lastpc'? */
if (reg != NO_REG && pc < dest && dest <= lastpc)
/* jump is forward and do not skip `lastpc'? */
if (pc < dest && dest <= lastpc)
pc += b; /* do the jump */
break;
}
case OP_CALL:
case OP_TAILCALL: {
if (b != 0) {
checkreg(pt, a+b-1);
}
c--; /* c = num. returns */
if (c == LUA_MULTRET) {
check(checkopenop(pt, pc));
}
else if (c != 0)
checkreg(pt, a+c-1);
if (reg >= a) last = pc; /* affect all registers above base */
break;
}
case OP_RETURN: {
b--; /* b = num. returns */
if (b > 0) checkreg(pt, a+b-1);
case OP_TEST: {
if (reg == a) setreg = pc; /* jumped code can change 'a' */
break;
}
case OP_SETLIST: {
if (b > 0) checkreg(pt, a + b);
if (c == 0) {
pc++;
check(pc < pt->sizecode - 1);
}
break;
}
case OP_CLOSURE: {
int nup, j;
check(b < pt->sizep);
nup = pt->p[b]->nups;
check(pc + nup < pt->sizecode);
for (j = 1; j <= nup; j++) {
OpCode op1 = GET_OPCODE(pt->code[pc + j]);
check(op1 == OP_GETUPVAL || op1 == OP_MOVE);
}
if (reg != NO_REG) /* tracing? */
pc += nup; /* do not 'execute' these pseudo-instructions */
default:
if (testAMode(op) && reg == a) /* any instruction that set A */
setreg = pc;
break;
}
case OP_VARARG: {
check((pt->is_vararg & VARARG_ISVARARG) &&
!(pt->is_vararg & VARARG_NEEDSARG));
b--;
if (b == LUA_MULTRET) check(checkopenop(pt, pc));
checkreg(pt, a+b-1);
break;
}
default: break;
}
}
return pt->code[last];
}
#undef check
#undef checkjump
#undef checkreg
/* }====================================================== */
int luaG_checkcode (const Proto *pt) {
return (symbexec(pt, pt->sizecode, NO_REG) != 0);
}
static const char *kname (Proto *p, int c) {
if (ISK(c) && ttisstring(&p->k[INDEXK(c)]))
return svalue(&p->k[INDEXK(c)]);
else
return "?";
return setreg;
}
static const char *getobjname (lua_State *L, CallInfo *ci, int stackpos,
static const char *getobjname (Proto *p, int lastpc, int reg,
const char **name) {
if (isLua(ci)) { /* a Lua function? */
Proto *p = ci_func(ci)->l.p;
int pc = currentpc(L, ci);
Instruction i;
*name = luaF_getlocalname(p, stackpos+1, pc);
int pc;
*name = luaF_getlocalname(p, reg + 1, lastpc);
if (*name) /* is a local? */
return "local";
i = symbexec(p, pc, stackpos); /* try symbolic execution */
lua_assert(pc != -1);
switch (GET_OPCODE(i)) {
case OP_GETGLOBAL: {
int g = GETARG_Bx(i); /* global index */
lua_assert(ttisstring(&p->k[g]));
*name = svalue(&p->k[g]);
return "global";
}
/* else try symbolic execution */
pc = findsetreg(p, lastpc, reg);
if (pc != -1) { /* could find instruction? */
Instruction i = p->code[pc];
OpCode op = GET_OPCODE(i);
switch (op) {
case OP_MOVE: {
int a = GETARG_A(i);
int b = GETARG_B(i); /* move from `b' to `a' */
if (b < a)
return getobjname(L, ci, b, name); /* get name for `b' */
int b = GETARG_B(i); /* move from 'b' to 'a' */
if (b < GETARG_A(i))
return getobjname(p, pc, b, name); /* get name for 'b' */
break;
}
case OP_GETTABUP:
case OP_GETTABLE: {
int k = GETARG_C(i); /* key index */
*name = kname(p, k);
return "field";
int t = GETARG_B(i); /* table index */
const char *vn = (op == OP_GETTABLE) /* name of indexed variable */
? luaF_getlocalname(p, t + 1, pc)
: upvalname(p, t);
kname(p, pc, k, name);
return (vn && strcmp(vn, LUA_ENV) == 0) ? "global" : "field";
}
case OP_GETUPVAL: {
int u = GETARG_B(i); /* upvalue index */
*name = p->upvalues ? getstr(p->upvalues[u]) : "?";
*name = upvalname(p, GETARG_B(i));
return "upvalue";
}
case OP_LOADK:
case OP_LOADKX: {
int b = (op == OP_LOADK) ? GETARG_Bx(i)
: GETARG_Ax(p->code[pc + 1]);
if (ttisstring(&p->k[b])) {
*name = svalue(&p->k[b]);
return "constant";
}
break;
}
case OP_SELF: {
int k = GETARG_C(i); /* key index */
*name = kname(p, k);
kname(p, pc, k, name);
return "method";
}
default: break;
default: break; /* go through to return NULL */
}
}
return NULL; /* no useful name found */
return NULL; /* could not find reasonable name */
}
static const char *getfuncname (lua_State *L, CallInfo *ci, const char **name) {
Instruction i;
if ((isLua(ci) && ci->tailcalls > 0) || !isLua(ci - 1))
return NULL; /* calling function is not Lua (or is unknown) */
ci--; /* calling function */
i = ci_func(ci)->l.p->code[currentpc(L, ci)];
if (GET_OPCODE(i) == OP_CALL || GET_OPCODE(i) == OP_TAILCALL ||
GET_OPCODE(i) == OP_TFORLOOP)
return getobjname(L, ci, GETARG_A(i), name);
else
return NULL; /* no useful name can be found */
TMS tm;
Proto *p = ci_func(ci)->p; /* calling function */
int pc = currentpc(ci); /* calling instruction index */
Instruction i = p->code[pc]; /* calling instruction */
switch (GET_OPCODE(i)) {
case OP_CALL:
case OP_TAILCALL: /* get function name */
return getobjname(p, pc, GETARG_A(i), name);
case OP_TFORCALL: { /* for iterator */
*name = "for iterator";
return "for iterator";
}
/* all other instructions can call only through metamethods */
case OP_SELF:
case OP_GETTABUP:
case OP_GETTABLE: tm = TM_INDEX; break;
case OP_SETTABUP:
case OP_SETTABLE: tm = TM_NEWINDEX; break;
case OP_EQ: tm = TM_EQ; break;
case OP_ADD: tm = TM_ADD; break;
case OP_SUB: tm = TM_SUB; break;
case OP_MUL: tm = TM_MUL; break;
case OP_DIV: tm = TM_DIV; break;
case OP_MOD: tm = TM_MOD; break;
case OP_POW: tm = TM_POW; break;
case OP_UNM: tm = TM_UNM; break;
case OP_LEN: tm = TM_LEN; break;
case OP_LT: tm = TM_LT; break;
case OP_LE: tm = TM_LE; break;
case OP_CONCAT: tm = TM_CONCAT; break;
default:
return NULL; /* else no useful name can be found */
}
*name = getstr(G(L)->tmname[tm]);
return "metamethod";
}
/* }====================================================== */
/* only ANSI way to check whether a pointer points to an array */
/*
** only ANSI way to check whether a pointer points to an array
** (used only for error messages, so efficiency is not a big concern)
*/
static int isinstack (CallInfo *ci, const TValue *o) {
StkId p;
for (p = ci->base; p < ci->top; p++)
for (p = ci->u.l.base; p < ci->top; p++)
if (o == p) return 1;
return 0;
}
void luaG_typeerror (lua_State *L, const TValue *o, const char *op) {
static const char *getupvalname (CallInfo *ci, const TValue *o,
const char **name) {
LClosure *c = ci_func(ci);
int i;
for (i = 0; i < c->nupvalues; i++) {
if (c->upvals[i]->v == o) {
*name = upvalname(c->p, i);
return "upvalue";
}
}
return NULL;
}
l_noret luaG_typeerror (lua_State *L, const TValue *o, const char *op) {
CallInfo *ci = L->ci;
const char *name = NULL;
const char *t = luaT_typenames[ttype(o)];
const char *kind = (isinstack(L->ci, o)) ?
getobjname(L, L->ci, cast_int(o - L->base), &name) :
NULL;
const char *t = objtypename(o);
const char *kind = NULL;
if (isLua(ci)) {
kind = getupvalname(ci, o, &name); /* check whether 'o' is an upvalue */
if (!kind && isinstack(ci, o)) /* no? try a register */
kind = getobjname(ci_func(ci)->p, currentpc(ci),
cast_int(o - ci->u.l.base), &name);
}
if (kind)
luaG_runerror(L, "attempt to %s %s " LUA_QS " (a %s value)",
op, kind, name, t);
@ -578,14 +513,14 @@ void luaG_typeerror (lua_State *L, const TValue *o, const char *op) {
}
void luaG_concaterror (lua_State *L, StkId p1, StkId p2) {
l_noret luaG_concaterror (lua_State *L, StkId p1, StkId p2) {
if (ttisstring(p1) || ttisnumber(p1)) p1 = p2;
lua_assert(!ttisstring(p1) && !ttisnumber(p1));
lua_assert(!ttisstring(p1) && !ttisnumber(p2));
luaG_typeerror(L, p1, "concatenate");
}
void luaG_aritherror (lua_State *L, const TValue *p1, const TValue *p2) {
l_noret luaG_aritherror (lua_State *L, const TValue *p1, const TValue *p2) {
TValue temp;
if (luaV_tonumber(p1, &temp) == NULL)
p2 = p1; /* first operand is wrong */
@ -593,14 +528,13 @@ void luaG_aritherror (lua_State *L, const TValue *p1, const TValue *p2) {
}
int luaG_ordererror (lua_State *L, const TValue *p1, const TValue *p2) {
const char *t1 = luaT_typenames[ttype(p1)];
const char *t2 = luaT_typenames[ttype(p2)];
if (t1[2] == t2[2])
l_noret luaG_ordererror (lua_State *L, const TValue *p1, const TValue *p2) {
const char *t1 = objtypename(p1);
const char *t2 = objtypename(p2);
if (t1 == t2)
luaG_runerror(L, "attempt to compare two %s values", t1);
else
luaG_runerror(L, "attempt to compare %s with %s", t1, t2);
return 0;
}
@ -608,27 +542,32 @@ static void addinfo (lua_State *L, const char *msg) {
CallInfo *ci = L->ci;
if (isLua(ci)) { /* is Lua code? */
char buff[LUA_IDSIZE]; /* add file:line information */
int line = currentline(L, ci);
luaO_chunkid(buff, getstr(getluaproto(ci)->source), LUA_IDSIZE);
int line = currentline(ci);
TString *src = ci_func(ci)->p->source;
if (src)
luaO_chunkid(buff, getstr(src), LUA_IDSIZE);
else { /* no source available; use "?" instead */
buff[0] = '?'; buff[1] = '\0';
}
luaO_pushfstring(L, "%s:%d: %s", buff, line, msg);
}
}
void luaG_errormsg (lua_State *L) {
l_noret luaG_errormsg (lua_State *L) {
if (L->errfunc != 0) { /* is there an error handling function? */
StkId errfunc = restorestack(L, L->errfunc);
if (!ttisfunction(errfunc)) luaD_throw(L, LUA_ERRERR);
setobjs2s(L, L->top, L->top - 1); /* move argument */
setobjs2s(L, L->top - 1, errfunc); /* push function */
incr_top(L);
luaD_call(L, L->top - 2, 1); /* call it */
luaD_call(L, L->top - 2, 1, 0); /* call it */
}
luaD_throw(L, LUA_ERRRUN);
}
void luaG_runerror (lua_State *L, const char *fmt, ...) {
l_noret luaG_runerror (lua_State *L, const char *fmt, ...) {
va_list argp;
va_start(argp, fmt);
addinfo(L, luaO_pushvfstring(L, fmt, argp));

612
depends/lua/src/ldo.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: ldo.c,v 2.38.1.3 2008/01/18 22:31:22 roberto Exp $
** $Id: ldo.c,v 2.102 2011/11/29 15:55:08 roberto Exp $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
@ -14,6 +14,7 @@
#include "lua.h"
#include "lapi.h"
#include "ldebug.h"
#include "ldo.h"
#include "lfunc.h"
@ -39,6 +40,38 @@
** =======================================================
*/
/*
** LUAI_THROW/LUAI_TRY define how Lua does exception handling. By
** default, Lua handles errors with exceptions when compiling as
** C++ code, with _longjmp/_setjmp when asked to use them, and with
** longjmp/setjmp otherwise.
*/
#if !defined(LUAI_THROW)
#if defined(__cplusplus) && !defined(LUA_USE_LONGJMP)
/* C++ exceptions */
#define LUAI_THROW(L,c) throw(c)
#define LUAI_TRY(L,c,a) \
try { a } catch(...) { if ((c)->status == 0) (c)->status = -1; }
#define luai_jmpbuf int /* dummy variable */
#elif defined(LUA_USE_ULONGJMP)
/* in Unix, try _longjmp/_setjmp (more efficient) */
#define LUAI_THROW(L,c) _longjmp((c)->b, 1)
#define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a }
#define luai_jmpbuf jmp_buf
#else
/* default handling with long jumps */
#define LUAI_THROW(L,c) longjmp((c)->b, 1)
#define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a }
#define luai_jmpbuf jmp_buf
#endif
#endif
/* chain list of long jump buffers */
struct lua_longjmp {
@ -48,18 +81,17 @@ struct lua_longjmp {
};
void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop) {
static void seterrorobj (lua_State *L, int errcode, StkId oldtop) {
switch (errcode) {
case LUA_ERRMEM: {
setsvalue2s(L, oldtop, luaS_newliteral(L, MEMERRMSG));
case LUA_ERRMEM: { /* memory error? */
setsvalue2s(L, oldtop, G(L)->memerrmsg); /* reuse preregistered msg. */
break;
}
case LUA_ERRERR: {
setsvalue2s(L, oldtop, luaS_newliteral(L, "error in error handling"));
break;
}
case LUA_ERRSYNTAX:
case LUA_ERRRUN: {
default: {
setobjs2s(L, oldtop, L->top - 1); /* error message on current top */
break;
}
@ -68,55 +100,39 @@ void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop) {
}
static void restore_stack_limit (lua_State *L) {
lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK - 1);
if (L->size_ci > LUAI_MAXCALLS) { /* there was an overflow? */
int inuse = cast_int(L->ci - L->base_ci);
if (inuse + 1 < LUAI_MAXCALLS) /* can `undo' overflow? */
luaD_reallocCI(L, LUAI_MAXCALLS);
}
}
static void resetstack (lua_State *L, int status) {
L->ci = L->base_ci;
L->base = L->ci->base;
luaF_close(L, L->base); /* close eventual pending closures */
luaD_seterrorobj(L, status, L->base);
L->nCcalls = L->baseCcalls;
L->allowhook = 1;
restore_stack_limit(L);
L->errfunc = 0;
L->errorJmp = NULL;
l_noret luaD_throw (lua_State *L, int errcode) {
if (L->errorJmp) { /* thread has an error handler? */
L->errorJmp->status = errcode; /* set status */
LUAI_THROW(L, L->errorJmp); /* jump to it */
}
void luaD_throw (lua_State *L, int errcode) {
if (L->errorJmp) {
L->errorJmp->status = errcode;
LUAI_THROW(L, L->errorJmp);
else { /* thread has no error handler */
L->status = cast_byte(errcode); /* mark it as dead */
if (G(L)->mainthread->errorJmp) { /* main thread has a handler? */
setobjs2s(L, G(L)->mainthread->top++, L->top - 1); /* copy error obj. */
luaD_throw(G(L)->mainthread, errcode); /* re-throw in main thread */
}
else {
L->status = cast_byte(errcode);
if (G(L)->panic) {
resetstack(L, errcode);
else { /* no handler at all; abort */
if (G(L)->panic) { /* panic function? */
lua_unlock(L);
G(L)->panic(L);
G(L)->panic(L); /* call it (last chance to jump out) */
}
abort();
}
exit(EXIT_FAILURE);
}
}
int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud) {
unsigned short oldnCcalls = L->nCcalls;
struct lua_longjmp lj;
lj.status = 0;
lj.status = LUA_OK;
lj.previous = L->errorJmp; /* chain new error handler */
L->errorJmp = &lj;
LUAI_TRY(L, &lj,
(*f)(L, ud);
);
L->errorJmp = lj.previous; /* restore old error handler */
L->nCcalls = oldnCcalls;
return lj.status;
}
@ -129,101 +145,120 @@ static void correctstack (lua_State *L, TValue *oldstack) {
L->top = (L->top - oldstack) + L->stack;
for (up = L->openupval; up != NULL; up = up->gch.next)
gco2uv(up)->v = (gco2uv(up)->v - oldstack) + L->stack;
for (ci = L->base_ci; ci <= L->ci; ci++) {
for (ci = L->ci; ci != NULL; ci = ci->previous) {
ci->top = (ci->top - oldstack) + L->stack;
ci->base = (ci->base - oldstack) + L->stack;
ci->func = (ci->func - oldstack) + L->stack;
if (isLua(ci))
ci->u.l.base = (ci->u.l.base - oldstack) + L->stack;
}
L->base = (L->base - oldstack) + L->stack;
}
/* some space for error handling */
#define ERRORSTACKSIZE (LUAI_MAXSTACK + 200)
void luaD_reallocstack (lua_State *L, int newsize) {
TValue *oldstack = L->stack;
int realsize = newsize + 1 + EXTRA_STACK;
lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK - 1);
luaM_reallocvector(L, L->stack, L->stacksize, realsize, TValue);
L->stacksize = realsize;
L->stack_last = L->stack+newsize;
int lim = L->stacksize;
lua_assert(newsize <= LUAI_MAXSTACK || newsize == ERRORSTACKSIZE);
lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK);
luaM_reallocvector(L, L->stack, L->stacksize, newsize, TValue);
for (; lim < newsize; lim++)
setnilvalue(L->stack + lim); /* erase new segment */
L->stacksize = newsize;
L->stack_last = L->stack + newsize - EXTRA_STACK;
correctstack(L, oldstack);
}
void luaD_reallocCI (lua_State *L, int newsize) {
CallInfo *oldci = L->base_ci;
luaM_reallocvector(L, L->base_ci, L->size_ci, newsize, CallInfo);
L->size_ci = newsize;
L->ci = (L->ci - oldci) + L->base_ci;
L->end_ci = L->base_ci + L->size_ci - 1;
}
void luaD_growstack (lua_State *L, int n) {
if (n <= L->stacksize) /* double size is enough? */
luaD_reallocstack(L, 2*L->stacksize);
int size = L->stacksize;
if (size > LUAI_MAXSTACK) /* error after extra size? */
luaD_throw(L, LUA_ERRERR);
else {
int needed = cast_int(L->top - L->stack) + n + EXTRA_STACK;
int newsize = 2 * size;
if (newsize > LUAI_MAXSTACK) newsize = LUAI_MAXSTACK;
if (newsize < needed) newsize = needed;
if (newsize > LUAI_MAXSTACK) { /* stack overflow? */
luaD_reallocstack(L, ERRORSTACKSIZE);
luaG_runerror(L, "stack overflow");
}
else
luaD_reallocstack(L, L->stacksize + n);
luaD_reallocstack(L, newsize);
}
}
static CallInfo *growCI (lua_State *L) {
if (L->size_ci > LUAI_MAXCALLS) /* overflow while handling overflow? */
luaD_throw(L, LUA_ERRERR);
else {
luaD_reallocCI(L, 2*L->size_ci);
if (L->size_ci > LUAI_MAXCALLS)
luaG_runerror(L, "stack overflow");
static int stackinuse (lua_State *L) {
CallInfo *ci;
StkId lim = L->top;
for (ci = L->ci; ci != NULL; ci = ci->previous) {
lua_assert(ci->top <= L->stack_last);
if (lim < ci->top) lim = ci->top;
}
return ++L->ci;
return cast_int(lim - L->stack) + 1; /* part of stack in use */
}
void luaD_callhook (lua_State *L, int event, int line) {
void luaD_shrinkstack (lua_State *L) {
int inuse = stackinuse(L);
int goodsize = inuse + (inuse / 8) + 2*EXTRA_STACK;
if (goodsize > LUAI_MAXSTACK) goodsize = LUAI_MAXSTACK;
if (inuse > LUAI_MAXSTACK || /* handling stack overflow? */
goodsize >= L->stacksize) /* would grow instead of shrink? */
condmovestack(L); /* don't change stack (change only for debugging) */
else
luaD_reallocstack(L, goodsize); /* shrink it */
}
void luaD_hook (lua_State *L, int event, int line) {
lua_Hook hook = L->hook;
if (hook && L->allowhook) {
CallInfo *ci = L->ci;
ptrdiff_t top = savestack(L, L->top);
ptrdiff_t ci_top = savestack(L, L->ci->top);
ptrdiff_t ci_top = savestack(L, ci->top);
lua_Debug ar;
ar.event = event;
ar.currentline = line;
if (event == LUA_HOOKTAILRET)
ar.i_ci = 0; /* tail call; no debug information about it */
else
ar.i_ci = cast_int(L->ci - L->base_ci);
ar.i_ci = ci;
luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */
L->ci->top = L->top + LUA_MINSTACK;
lua_assert(L->ci->top <= L->stack_last);
ci->top = L->top + LUA_MINSTACK;
lua_assert(ci->top <= L->stack_last);
L->allowhook = 0; /* cannot call hooks inside a hook */
ci->callstatus |= CIST_HOOKED;
lua_unlock(L);
(*hook)(L, &ar);
lua_lock(L);
lua_assert(!L->allowhook);
L->allowhook = 1;
L->ci->top = restorestack(L, ci_top);
ci->top = restorestack(L, ci_top);
L->top = restorestack(L, top);
ci->callstatus &= ~CIST_HOOKED;
}
}
static void callhook (lua_State *L, CallInfo *ci) {
int hook = LUA_HOOKCALL;
ci->u.l.savedpc++; /* hooks assume 'pc' is already incremented */
if (isLua(ci->previous) &&
GET_OPCODE(*(ci->previous->u.l.savedpc - 1)) == OP_TAILCALL) {
ci->callstatus |= CIST_TAIL;
hook = LUA_HOOKTAILCALL;
}
luaD_hook(L, hook, -1);
ci->u.l.savedpc--; /* correct 'pc' */
}
static StkId adjust_varargs (lua_State *L, Proto *p, int actual) {
int i;
int nfixargs = p->numparams;
Table *htab = NULL;
StkId base, fixed;
for (; actual < nfixargs; ++actual)
setnilvalue(L->top++);
#if defined(LUA_COMPAT_VARARG)
if (p->is_vararg & VARARG_NEEDSARG) { /* compat. with old-style vararg? */
int nvar = actual - nfixargs; /* number of extra arguments */
lua_assert(p->is_vararg & VARARG_HASARG);
luaC_checkGC(L);
htab = luaH_new(L, nvar, 1); /* create `arg' table */
for (i=0; i<nvar; i++) /* put extra arguments into `arg' table */
setobj2n(L, luaH_setnum(L, htab, i+1), L->top - nvar + i);
/* store counter in field `n' */
setnvalue(luaH_setstr(L, htab, luaS_newliteral(L, "n")), cast_num(nvar));
}
#endif
lua_assert(actual >= nfixargs);
/* move fixed parameters to final position */
fixed = L->top - actual; /* first fixed argument */
base = L->top; /* final position of first argument */
@ -231,11 +266,6 @@ static StkId adjust_varargs (lua_State *L, Proto *p, int actual) {
setobjs2s(L, L->top++, fixed + i);
setnilvalue(fixed + i);
}
/* add `arg' parameter */
if (htab) {
sethvalue(L, L->top++, htab);
lua_assert(iswhite(obj2gco(htab)));
}
return base;
}
@ -256,100 +286,85 @@ static StkId tryfuncTM (lua_State *L, StkId func) {
#define inc_ci(L) \
((L->ci == L->end_ci) ? growCI(L) : \
(condhardstacktests(luaD_reallocCI(L, L->size_ci)), ++L->ci))
#define next_ci(L) (L->ci = (L->ci->next ? L->ci->next : luaE_extendCI(L)))
/*
** returns true if function has been executed (C function)
*/
int luaD_precall (lua_State *L, StkId func, int nresults) {
LClosure *cl;
ptrdiff_t funcr;
if (!ttisfunction(func)) /* `func' is not a function? */
func = tryfuncTM(L, func); /* check the `function' tag method */
funcr = savestack(L, func);
cl = &clvalue(func)->l;
L->ci->savedpc = L->savedpc;
if (!cl->isC) { /* Lua function? prepare its call */
lua_CFunction f;
CallInfo *ci;
StkId st, base;
Proto *p = cl->p;
luaD_checkstack(L, p->maxstacksize);
func = restorestack(L, funcr);
if (!p->is_vararg) { /* no varargs? */
base = func + 1;
if (L->top > base + p->numparams)
L->top = base + p->numparams;
}
else { /* vararg function */
int nargs = cast_int(L->top - func) - 1;
base = adjust_varargs(L, p, nargs);
func = restorestack(L, funcr); /* previous call may change the stack */
}
ci = inc_ci(L); /* now `enter' new function */
ci->func = func;
L->base = ci->base = base;
ci->top = L->base + p->maxstacksize;
lua_assert(ci->top <= L->stack_last);
L->savedpc = p->code; /* starting point */
ci->tailcalls = 0;
ci->nresults = nresults;
for (st = L->top; st < ci->top; st++)
setnilvalue(st);
L->top = ci->top;
if (L->hookmask & LUA_MASKCALL) {
L->savedpc++; /* hooks assume 'pc' is already incremented */
luaD_callhook(L, LUA_HOOKCALL, -1);
L->savedpc--; /* correct 'pc' */
}
return PCRLUA;
}
else { /* if is a C function, call it */
CallInfo *ci;
int n;
int n; /* number of arguments (Lua) or returns (C) */
ptrdiff_t funcr = savestack(L, func);
switch (ttype(func)) {
case LUA_TLCF: /* light C function */
f = fvalue(func);
goto Cfunc;
case LUA_TCCL: { /* C closure */
f = clCvalue(func)->f;
Cfunc:
luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */
ci = inc_ci(L); /* now `enter' new function */
ci = next_ci(L); /* now 'enter' new function */
ci->nresults = nresults;
ci->func = restorestack(L, funcr);
L->base = ci->base = ci->func + 1;
ci->top = L->top + LUA_MINSTACK;
lua_assert(ci->top <= L->stack_last);
ci->nresults = nresults;
ci->callstatus = 0;
if (L->hookmask & LUA_MASKCALL)
luaD_callhook(L, LUA_HOOKCALL, -1);
luaD_hook(L, LUA_HOOKCALL, -1);
lua_unlock(L);
n = (*curr_func(L)->c.f)(L); /* do the actual call */
n = (*f)(L); /* do the actual call */
lua_lock(L);
if (n < 0) /* yielding? */
return PCRYIELD;
else {
api_checknelems(L, n);
luaD_poscall(L, L->top - n);
return PCRC;
return 1;
}
case LUA_TLCL: { /* Lua function: prepare its call */
StkId base;
Proto *p = clLvalue(func)->p;
luaD_checkstack(L, p->maxstacksize);
func = restorestack(L, funcr);
n = cast_int(L->top - func) - 1; /* number of real arguments */
for (; n < p->numparams; n++)
setnilvalue(L->top++); /* complete missing arguments */
base = (!p->is_vararg) ? func + 1 : adjust_varargs(L, p, n);
ci = next_ci(L); /* now 'enter' new function */
ci->nresults = nresults;
ci->func = func;
ci->u.l.base = base;
ci->top = base + p->maxstacksize;
lua_assert(ci->top <= L->stack_last);
ci->u.l.savedpc = p->code; /* starting point */
ci->callstatus = CIST_LUA;
L->top = ci->top;
if (L->hookmask & LUA_MASKCALL)
callhook(L, ci);
return 0;
}
default: { /* not a function */
func = tryfuncTM(L, func); /* retry with 'function' tag method */
return luaD_precall(L, func, nresults); /* now it must be a function */
}
static StkId callrethooks (lua_State *L, StkId firstResult) {
ptrdiff_t fr = savestack(L, firstResult); /* next call may change stack */
luaD_callhook(L, LUA_HOOKRET, -1);
if (f_isLua(L->ci)) { /* Lua function? */
while ((L->hookmask & LUA_MASKRET) && L->ci->tailcalls--) /* tail calls */
luaD_callhook(L, LUA_HOOKTAILRET, -1);
}
return restorestack(L, fr);
}
int luaD_poscall (lua_State *L, StkId firstResult) {
StkId res;
int wanted, i;
CallInfo *ci;
if (L->hookmask & LUA_MASKRET)
firstResult = callrethooks(L, firstResult);
ci = L->ci--;
CallInfo *ci = L->ci;
if (L->hookmask & (LUA_MASKRET | LUA_MASKLINE)) {
if (L->hookmask & LUA_MASKRET) {
ptrdiff_t fr = savestack(L, firstResult); /* hook may change stack */
luaD_hook(L, LUA_HOOKRET, -1);
firstResult = restorestack(L, fr);
}
L->oldpc = ci->previous->u.l.savedpc; /* 'oldpc' for caller function */
}
res = ci->func; /* res == final position of 1st result */
wanted = ci->nresults;
L->base = (ci - 1)->base; /* restore base */
L->savedpc = (ci - 1)->savedpc; /* restore savedpc */
L->ci = ci = ci->previous; /* back to caller */
/* move results to correct place */
for (i = wanted; i != 0 && firstResult < L->top; i--)
setobjs2s(L, res++, firstResult++);
@ -366,111 +381,222 @@ int luaD_poscall (lua_State *L, StkId firstResult) {
** When returns, all the results are on the stack, starting at the original
** function position.
*/
void luaD_call (lua_State *L, StkId func, int nResults) {
void luaD_call (lua_State *L, StkId func, int nResults, int allowyield) {
if (++L->nCcalls >= LUAI_MAXCCALLS) {
if (L->nCcalls == LUAI_MAXCCALLS)
luaG_runerror(L, "C stack overflow");
else if (L->nCcalls >= (LUAI_MAXCCALLS + (LUAI_MAXCCALLS>>3)))
luaD_throw(L, LUA_ERRERR); /* error while handing stack error */
}
if (luaD_precall(L, func, nResults) == PCRLUA) /* is a Lua function? */
luaV_execute(L, 1); /* call it */
if (!allowyield) L->nny++;
if (!luaD_precall(L, func, nResults)) /* is a Lua function? */
luaV_execute(L); /* call it */
if (!allowyield) L->nny--;
L->nCcalls--;
luaC_checkGC(L);
}
static void resume (lua_State *L, void *ud) {
StkId firstArg = cast(StkId, ud);
static void finishCcall (lua_State *L) {
CallInfo *ci = L->ci;
if (L->status == 0) { /* start coroutine? */
lua_assert(ci == L->base_ci && firstArg > L->base);
if (luaD_precall(L, firstArg - 1, LUA_MULTRET) != PCRLUA)
return;
int n;
lua_assert(ci->u.c.k != NULL); /* must have a continuation */
lua_assert(L->nny == 0);
/* finish 'luaD_call' */
L->nCcalls--;
/* finish 'lua_callk' */
adjustresults(L, ci->nresults);
/* call continuation function */
if (!(ci->callstatus & CIST_STAT)) /* no call status? */
ci->u.c.status = LUA_YIELD; /* 'default' status */
lua_assert(ci->u.c.status != LUA_OK);
ci->callstatus = (ci->callstatus & ~(CIST_YPCALL | CIST_STAT)) | CIST_YIELDED;
lua_unlock(L);
n = (*ci->u.c.k)(L);
lua_lock(L);
api_checknelems(L, n);
/* finish 'luaD_precall' */
luaD_poscall(L, L->top - n);
}
else { /* resuming from previous yield */
lua_assert(L->status == LUA_YIELD);
L->status = 0;
if (!f_isLua(ci)) { /* `common' yield? */
/* finish interrupted execution of `OP_CALL' */
lua_assert(GET_OPCODE(*((ci-1)->savedpc - 1)) == OP_CALL ||
GET_OPCODE(*((ci-1)->savedpc - 1)) == OP_TAILCALL);
if (luaD_poscall(L, firstArg)) /* complete it... */
L->top = L->ci->top; /* and correct top if not multiple results */
static void unroll (lua_State *L, void *ud) {
UNUSED(ud);
for (;;) {
if (L->ci == &L->base_ci) /* stack is empty? */
return; /* coroutine finished normally */
if (!isLua(L->ci)) /* C function? */
finishCcall(L);
else { /* Lua function */
luaV_finishOp(L); /* finish interrupted instruction */
luaV_execute(L); /* execute down to higher C 'boundary' */
}
}
}
/*
** check whether thread has a suspended protected call
*/
static CallInfo *findpcall (lua_State *L) {
CallInfo *ci;
for (ci = L->ci; ci != NULL; ci = ci->previous) { /* search for a pcall */
if (ci->callstatus & CIST_YPCALL)
return ci;
}
else /* yielded inside a hook: just continue its execution */
L->base = L->ci->base;
return NULL; /* no pending pcall */
}
luaV_execute(L, cast_int(L->ci - L->base_ci));
static int recover (lua_State *L, int status) {
StkId oldtop;
CallInfo *ci = findpcall(L);
if (ci == NULL) return 0; /* no recovery point */
/* "finish" luaD_pcall */
oldtop = restorestack(L, ci->u.c.extra);
luaF_close(L, oldtop);
seterrorobj(L, status, oldtop);
L->ci = ci;
L->allowhook = ci->u.c.old_allowhook;
L->nny = 0; /* should be zero to be yieldable */
luaD_shrinkstack(L);
L->errfunc = ci->u.c.old_errfunc;
ci->callstatus |= CIST_STAT; /* call has error status */
ci->u.c.status = status; /* (here it is) */
return 1; /* continue running the coroutine */
}
static int resume_error (lua_State *L, const char *msg) {
L->top = L->ci->base;
setsvalue2s(L, L->top, luaS_new(L, msg));
/*
** signal an error in the call to 'resume', not in the execution of the
** coroutine itself. (Such errors should not be handled by any coroutine
** error handler and should not kill the coroutine.)
*/
static l_noret resume_error (lua_State *L, const char *msg, StkId firstArg) {
L->top = firstArg; /* remove args from the stack */
setsvalue2s(L, L->top, luaS_new(L, msg)); /* push error message */
incr_top(L);
luaD_throw(L, -1); /* jump back to 'lua_resume' */
}
/*
** do the work for 'lua_resume' in protected mode
*/
static void resume (lua_State *L, void *ud) {
StkId firstArg = cast(StkId, ud);
CallInfo *ci = L->ci;
if (L->nCcalls >= LUAI_MAXCCALLS)
resume_error(L, "C stack overflow", firstArg);
if (L->status == LUA_OK) { /* may be starting a coroutine */
if (ci != &L->base_ci) /* not in base level? */
resume_error(L, "cannot resume non-suspended coroutine", firstArg);
/* coroutine is in base level; start running it */
if (!luaD_precall(L, firstArg - 1, LUA_MULTRET)) /* Lua function? */
luaV_execute(L); /* call it */
}
else if (L->status != LUA_YIELD)
resume_error(L, "cannot resume dead coroutine", firstArg);
else { /* resuming from previous yield */
L->status = LUA_OK;
if (isLua(ci)) /* yielded inside a hook? */
luaV_execute(L); /* just continue running Lua code */
else { /* 'common' yield */
ci->func = restorestack(L, ci->u.c.extra);
if (ci->u.c.k != NULL) { /* does it have a continuation? */
int n;
ci->u.c.status = LUA_YIELD; /* 'default' status */
ci->callstatus |= CIST_YIELDED;
lua_unlock(L);
return LUA_ERRRUN;
n = (*ci->u.c.k)(L); /* call continuation */
lua_lock(L);
api_checknelems(L, n);
firstArg = L->top - n; /* yield results come from continuation */
}
L->nCcalls--; /* finish 'luaD_call' */
luaD_poscall(L, firstArg); /* finish 'luaD_precall' */
}
unroll(L, NULL);
}
}
LUA_API int lua_resume (lua_State *L, int nargs) {
LUA_API int lua_resume (lua_State *L, lua_State *from, int nargs) {
int status;
lua_lock(L);
if (L->status != LUA_YIELD && (L->status != 0 || L->ci != L->base_ci))
return resume_error(L, "cannot resume non-suspended coroutine");
if (L->nCcalls >= LUAI_MAXCCALLS)
return resume_error(L, "C stack overflow");
luai_userstateresume(L, nargs);
lua_assert(L->errfunc == 0);
L->baseCcalls = ++L->nCcalls;
L->nCcalls = (from) ? from->nCcalls + 1 : 1;
L->nny = 0; /* allow yields */
api_checknelems(L, (L->status == LUA_OK) ? nargs + 1 : nargs);
status = luaD_rawrunprotected(L, resume, L->top - nargs);
if (status != 0) { /* error? */
if (status == -1) /* error calling 'lua_resume'? */
status = LUA_ERRRUN;
else { /* yield or regular error */
while (status != LUA_OK && status != LUA_YIELD) { /* error? */
if (recover(L, status)) /* recover point? */
status = luaD_rawrunprotected(L, unroll, NULL); /* run continuation */
else { /* unrecoverable error */
L->status = cast_byte(status); /* mark thread as `dead' */
luaD_seterrorobj(L, status, L->top);
seterrorobj(L, status, L->top);
L->ci->top = L->top;
break;
}
else {
lua_assert(L->nCcalls == L->baseCcalls);
status = L->status;
}
--L->nCcalls;
lua_assert(status == L->status);
}
L->nny = 1; /* do not allow yields */
L->nCcalls--;
lua_assert(L->nCcalls == ((from) ? from->nCcalls : 0));
lua_unlock(L);
return status;
}
LUA_API int lua_yield (lua_State *L, int nresults) {
LUA_API int lua_yieldk (lua_State *L, int nresults, int ctx, lua_CFunction k) {
CallInfo *ci = L->ci;
luai_userstateyield(L, nresults);
lua_lock(L);
if (L->nCcalls > L->baseCcalls)
api_checknelems(L, nresults);
if (L->nny > 0) {
if (L != G(L)->mainthread)
luaG_runerror(L, "attempt to yield across metamethod/C-call boundary");
L->base = L->top - nresults; /* protect stack slots below */
else
luaG_runerror(L, "attempt to yield from outside a coroutine");
}
L->status = LUA_YIELD;
if (isLua(ci)) { /* inside a hook? */
api_check(L, k == NULL, "hooks cannot continue after yielding");
}
else {
if ((ci->u.c.k = k) != NULL) /* is there a continuation? */
ci->u.c.ctx = ctx; /* save context */
ci->u.c.extra = savestack(L, ci->func); /* save current 'func' */
ci->func = L->top - nresults - 1; /* protect stack below results */
luaD_throw(L, LUA_YIELD);
}
lua_assert(ci->callstatus & CIST_HOOKED); /* must be inside a hook */
lua_unlock(L);
return -1;
return 0; /* return to 'luaD_hook' */
}
int luaD_pcall (lua_State *L, Pfunc func, void *u,
ptrdiff_t old_top, ptrdiff_t ef) {
int status;
unsigned short oldnCcalls = L->nCcalls;
ptrdiff_t old_ci = saveci(L, L->ci);
CallInfo *old_ci = L->ci;
lu_byte old_allowhooks = L->allowhook;
unsigned short old_nny = L->nny;
ptrdiff_t old_errfunc = L->errfunc;
L->errfunc = ef;
status = luaD_rawrunprotected(L, func, u);
if (status != 0) { /* an error occurred? */
if (status != LUA_OK) { /* an error occurred? */
StkId oldtop = restorestack(L, old_top);
luaF_close(L, oldtop); /* close eventual pending closures */
luaD_seterrorobj(L, status, oldtop);
L->nCcalls = oldnCcalls;
L->ci = restoreci(L, old_ci);
L->base = L->ci->base;
L->savedpc = L->ci->savedpc;
luaF_close(L, oldtop); /* close possible pending closures */
seterrorobj(L, status, oldtop);
L->ci = old_ci;
L->allowhook = old_allowhooks;
restore_stack_limit(L);
L->nny = old_nny;
luaD_shrinkstack(L);
}
L->errfunc = old_errfunc;
return status;
@ -483,35 +609,61 @@ int luaD_pcall (lua_State *L, Pfunc func, void *u,
*/
struct SParser { /* data to `f_parser' */
ZIO *z;
Mbuffer buff; /* buffer to be used by the scanner */
Mbuffer buff; /* dynamic structure used by the scanner */
Dyndata dyd; /* dynamic structures used by the parser */
const char *mode;
const char *name;
};
static void checkmode (lua_State *L, const char *mode, const char *x) {
if (mode && strchr(mode, x[0]) == NULL) {
luaO_pushfstring(L,
"attempt to load a %s chunk (mode is " LUA_QS ")", x, mode);
luaD_throw(L, LUA_ERRSYNTAX);
}
}
static void f_parser (lua_State *L, void *ud) {
int i;
Proto *tf;
Closure *cl;
struct SParser *p = cast(struct SParser *, ud);
int c = luaZ_lookahead(p->z);
luaC_checkGC(L);
tf = ((c == LUA_SIGNATURE[0]) ? luaU_undump : luaY_parser)(L, p->z,
&p->buff, p->name);
cl = luaF_newLclosure(L, tf->nups, hvalue(gt(L)));
cl->l.p = tf;
for (i = 0; i < tf->nups; i++) /* initialize eventual upvalues */
cl->l.upvals[i] = luaF_newupval(L);
setclvalue(L, L->top, cl);
int c = zgetc(p->z); /* read first character */
if (c == LUA_SIGNATURE[0]) {
checkmode(L, p->mode, "binary");
tf = luaU_undump(L, p->z, &p->buff, p->name);
}
else {
checkmode(L, p->mode, "text");
tf = luaY_parser(L, p->z, &p->buff, &p->dyd, p->name, c);
}
setptvalue2s(L, L->top, tf);
incr_top(L);
cl = luaF_newLclosure(L, tf);
setclLvalue(L, L->top - 1, cl);
for (i = 0; i < tf->sizeupvalues; i++) /* initialize upvalues */
cl->l.upvals[i] = luaF_newupval(L);
}
int luaD_protectedparser (lua_State *L, ZIO *z, const char *name) {
int luaD_protectedparser (lua_State *L, ZIO *z, const char *name,
const char *mode) {
struct SParser p;
int status;
p.z = z; p.name = name;
L->nny++; /* cannot yield during parsing */
p.z = z; p.name = name; p.mode = mode;
p.dyd.actvar.arr = NULL; p.dyd.actvar.size = 0;
p.dyd.gt.arr = NULL; p.dyd.gt.size = 0;
p.dyd.label.arr = NULL; p.dyd.label.size = 0;
luaZ_initbuffer(L, &p.buff);
status = luaD_pcall(L, f_parser, &p, savestack(L, L->top), L->errfunc);
luaZ_freebuffer(L, &p.buff);
luaM_freearray(L, p.dyd.actvar.arr, p.dyd.actvar.size);
luaM_freearray(L, p.dyd.gt.arr, p.dyd.gt.size);
luaM_freearray(L, p.dyd.label.arr, p.dyd.label.size);
L->nny--;
return status;
}

36
depends/lua/src/ldump.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: ldump.c,v 2.8.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: ldump.c,v 1.19 2011/11/23 17:48:18 lhf Exp $
** save precompiled Lua chunks
** See Copyright Notice in lua.h
*/
@ -60,7 +60,7 @@ static void DumpVector(const void* b, int n, size_t size, DumpState* D)
static void DumpString(const TString* s, DumpState* D)
{
if (s==NULL || getstr(s)==NULL)
if (s==NULL)
{
size_t size=0;
DumpVar(size,D);
@ -69,13 +69,13 @@ static void DumpString(const TString* s, DumpState* D)
{
size_t size=s->tsv.len+1; /* include trailing '\0' */
DumpVar(size,D);
DumpBlock(getstr(s),size,D);
DumpBlock(getstr(s),size*sizeof(char),D);
}
}
#define DumpCode(f,D) DumpVector(f->code,f->sizecode,sizeof(Instruction),D)
static void DumpFunction(const Proto* f, const TString* p, DumpState* D);
static void DumpFunction(const Proto* f, DumpState* D);
static void DumpConstants(const Proto* f, DumpState* D)
{
@ -98,19 +98,28 @@ static void DumpConstants(const Proto* f, DumpState* D)
case LUA_TSTRING:
DumpString(rawtsvalue(o),D);
break;
default:
lua_assert(0); /* cannot happen */
break;
}
}
n=f->sizep;
DumpInt(n,D);
for (i=0; i<n; i++) DumpFunction(f->p[i],f->source,D);
for (i=0; i<n; i++) DumpFunction(f->p[i],D);
}
static void DumpUpvalues(const Proto* f, DumpState* D)
{
int i,n=f->sizeupvalues;
DumpInt(n,D);
for (i=0; i<n; i++)
{
DumpChar(f->upvalues[i].instack,D);
DumpChar(f->upvalues[i].idx,D);
}
}
static void DumpDebug(const Proto* f, DumpState* D)
{
int i,n;
DumpString((D->strip) ? NULL : f->source,D);
n= (D->strip) ? 0 : f->sizelineinfo;
DumpVector(f->lineinfo,n,sizeof(int),D);
n= (D->strip) ? 0 : f->sizelocvars;
@ -123,26 +132,25 @@ static void DumpDebug(const Proto* f, DumpState* D)
}
n= (D->strip) ? 0 : f->sizeupvalues;
DumpInt(n,D);
for (i=0; i<n; i++) DumpString(f->upvalues[i],D);
for (i=0; i<n; i++) DumpString(f->upvalues[i].name,D);
}
static void DumpFunction(const Proto* f, const TString* p, DumpState* D)
static void DumpFunction(const Proto* f, DumpState* D)
{
DumpString((f->source==p || D->strip) ? NULL : f->source,D);
DumpInt(f->linedefined,D);
DumpInt(f->lastlinedefined,D);
DumpChar(f->nups,D);
DumpChar(f->numparams,D);
DumpChar(f->is_vararg,D);
DumpChar(f->maxstacksize,D);
DumpCode(f,D);
DumpConstants(f,D);
DumpUpvalues(f,D);
DumpDebug(f,D);
}
static void DumpHeader(DumpState* D)
{
char h[LUAC_HEADERSIZE];
lu_byte h[LUAC_HEADERSIZE];
luaU_header(h);
DumpBlock(h,LUAC_HEADERSIZE,D);
}
@ -159,6 +167,6 @@ int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip
D.strip=strip;
D.status=0;
DumpHeader(&D);
DumpFunction(f,NULL,&D);
DumpFunction(f,&D);
return D.status;
}

73
depends/lua/src/lfunc.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lfunc.c,v 2.12.1.2 2007/12/28 14:58:43 roberto Exp $
** $Id: lfunc.c,v 2.27 2010/06/30 14:11:17 roberto Exp $
** Auxiliary functions to manipulate prototypes and closures
** See Copyright Notice in lua.h
*/
@ -20,30 +20,27 @@
Closure *luaF_newCclosure (lua_State *L, int nelems, Table *e) {
Closure *c = cast(Closure *, luaM_malloc(L, sizeCclosure(nelems)));
luaC_link(L, obj2gco(c), LUA_TFUNCTION);
Closure *luaF_newCclosure (lua_State *L, int n) {
Closure *c = &luaC_newobj(L, LUA_TFUNCTION, sizeCclosure(n), NULL, 0)->cl;
c->c.isC = 1;
c->c.env = e;
c->c.nupvalues = cast_byte(nelems);
c->c.nupvalues = cast_byte(n);
return c;
}
Closure *luaF_newLclosure (lua_State *L, int nelems, Table *e) {
Closure *c = cast(Closure *, luaM_malloc(L, sizeLclosure(nelems)));
luaC_link(L, obj2gco(c), LUA_TFUNCTION);
Closure *luaF_newLclosure (lua_State *L, Proto *p) {
int n = p->sizeupvalues;
Closure *c = &luaC_newobj(L, LUA_TFUNCTION, sizeLclosure(n), NULL, 0)->cl;
c->l.isC = 0;
c->l.env = e;
c->l.nupvalues = cast_byte(nelems);
while (nelems--) c->l.upvals[nelems] = NULL;
c->l.p = p;
c->l.nupvalues = cast_byte(n);
while (n--) c->l.upvals[n] = NULL;
return c;
}
UpVal *luaF_newupval (lua_State *L) {
UpVal *uv = luaM_new(L, UpVal);
luaC_link(L, obj2gco(uv), LUA_TUPVAL);
UpVal *uv = &luaC_newobj(L, LUA_TUPVAL, sizeof(UpVal), NULL, 0)->uv;
uv->v = &uv->u.value;
setnilvalue(uv->v);
return uv;
@ -55,21 +52,20 @@ UpVal *luaF_findupval (lua_State *L, StkId level) {
GCObject **pp = &L->openupval;
UpVal *p;
UpVal *uv;
while (*pp != NULL && (p = ngcotouv(*pp))->v >= level) {
while (*pp != NULL && (p = gco2uv(*pp))->v >= level) {
GCObject *o = obj2gco(p);
lua_assert(p->v != &p->u.value);
if (p->v == level) { /* found a corresponding upvalue? */
if (isdead(g, obj2gco(p))) /* is it dead? */
changewhite(obj2gco(p)); /* ressurect it */
if (isdead(g, o)) /* is it dead? */
changewhite(o); /* resurrect it */
return p;
}
resetoldbit(o); /* may create a newer upval after this one */
pp = &p->next;
}
uv = luaM_new(L, UpVal); /* not found: create a new one */
uv->tt = LUA_TUPVAL;
uv->marked = luaC_white(g);
/* not found: create a new one */
uv = &luaC_newobj(L, LUA_TUPVAL, sizeof(UpVal), pp, 0)->uv;
uv->v = level; /* current value lives in the stack */
uv->next = *pp; /* chain it in the proper position */
*pp = obj2gco(uv);
uv->u.l.prev = &g->uvhead; /* double link it in `uvhead' list */
uv->u.l.next = g->uvhead.u.l.next;
uv->u.l.next->u.l.prev = uv;
@ -96,41 +92,42 @@ void luaF_freeupval (lua_State *L, UpVal *uv) {
void luaF_close (lua_State *L, StkId level) {
UpVal *uv;
global_State *g = G(L);
while (L->openupval != NULL && (uv = ngcotouv(L->openupval))->v >= level) {
while (L->openupval != NULL && (uv = gco2uv(L->openupval))->v >= level) {
GCObject *o = obj2gco(uv);
lua_assert(!isblack(o) && uv->v != &uv->u.value);
L->openupval = uv->next; /* remove from `open' list */
if (isdead(g, o))
luaF_freeupval(L, uv); /* free upvalue */
else {
unlinkupval(uv);
setobj(L, &uv->u.value, uv->v);
unlinkupval(uv); /* remove upvalue from 'uvhead' list */
setobj(L, &uv->u.value, uv->v); /* move value to upvalue slot */
uv->v = &uv->u.value; /* now current value lives here */
luaC_linkupval(L, uv); /* link upvalue into `gcroot' list */
gch(o)->next = g->allgc; /* link upvalue into 'allgc' list */
g->allgc = o;
luaC_checkupvalcolor(g, uv);
}
}
}
Proto *luaF_newproto (lua_State *L) {
Proto *f = luaM_new(L, Proto);
luaC_link(L, obj2gco(f), LUA_TPROTO);
Proto *f = &luaC_newobj(L, LUA_TPROTO, sizeof(Proto), NULL, 0)->p;
f->k = NULL;
f->sizek = 0;
f->p = NULL;
f->sizep = 0;
f->code = NULL;
f->cache = NULL;
f->sizecode = 0;
f->lineinfo = NULL;
f->sizelineinfo = 0;
f->sizeupvalues = 0;
f->nups = 0;
f->upvalues = NULL;
f->sizeupvalues = 0;
f->numparams = 0;
f->is_vararg = 0;
f->maxstacksize = 0;
f->lineinfo = NULL;
f->sizelocvars = 0;
f->locvars = NULL;
f->sizelocvars = 0;
f->linedefined = 0;
f->lastlinedefined = 0;
f->source = NULL;
@ -139,12 +136,12 @@ Proto *luaF_newproto (lua_State *L) {
void luaF_freeproto (lua_State *L, Proto *f) {
luaM_freearray(L, f->code, f->sizecode, Instruction);
luaM_freearray(L, f->p, f->sizep, Proto *);
luaM_freearray(L, f->k, f->sizek, TValue);
luaM_freearray(L, f->lineinfo, f->sizelineinfo, int);
luaM_freearray(L, f->locvars, f->sizelocvars, struct LocVar);
luaM_freearray(L, f->upvalues, f->sizeupvalues, TString *);
luaM_freearray(L, f->code, f->sizecode);
luaM_freearray(L, f->p, f->sizep);
luaM_freearray(L, f->k, f->sizek);
luaM_freearray(L, f->lineinfo, f->sizelineinfo);
luaM_freearray(L, f->locvars, f->sizelocvars);
luaM_freearray(L, f->upvalues, f->sizeupvalues);
luaM_free(L, f);
}

1204
depends/lua/src/lgc.c
View File

File diff suppressed because it is too large Load Diff

48
depends/lua/src/linit.c
Unescape Escape View File

@ -1,10 +1,18 @@
/*
** $Id: linit.c,v 1.14.1.1 2007/12/27 13:02:25 roberto Exp $
** Initialization of libraries for lua.c
** $Id: linit.c,v 1.32 2011/04/08 19:17:36 roberto Exp $
** Initialization of libraries for lua.c and other clients
** See Copyright Notice in lua.h
*/
/*
** If you embed Lua in your program and need to open the standard
** libraries, call luaL_openlibs in your program. If you need a
** different set of libraries, copy this file to your project and edit
** it to suit your needs.
*/
#define linit_c
#define LUA_LIB
@ -12,28 +20,48 @@
#include "lualib.h"
#include "lauxlib.h"
#include "bit.h"
static const luaL_Reg lualibs[] = {
{"", luaopen_base},
/*
** these libs are loaded by lua.c and are readily available to any Lua
** program
*/
static const luaL_Reg loadedlibs[] = {
{"_G", luaopen_base},
{LUA_LOADLIBNAME, luaopen_package},
{LUA_COLIBNAME, luaopen_coroutine},
{LUA_TABLIBNAME, luaopen_table},
{LUA_IOLIBNAME, luaopen_io},
{LUA_OSLIBNAME, luaopen_os},
{LUA_STRLIBNAME, luaopen_string},
{LUA_BITLIBNAME, luaopen_bit32},
{LUA_MATHLIBNAME, luaopen_math},
{LUA_DBLIBNAME, luaopen_debug},
{"bit",luaopen_bit},
{NULL, NULL}
};
/*
** these libs are preloaded and must be required before used
*/
static const luaL_Reg preloadedlibs[] = {
{NULL, NULL}
};
LUALIB_API void luaL_openlibs (lua_State *L) {
const luaL_Reg *lib = lualibs;
for (; lib->func; lib++) {
const luaL_Reg *lib;
/* call open functions from 'loadedlibs' and set results to global table */
for (lib = loadedlibs; lib->func; lib++) {
luaL_requiref(L, lib->name, lib->func, 1);
lua_pop(L, 1); /* remove lib */
}
/* add open functions from 'preloadedlibs' into 'package.preload' table */
luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD");
for (lib = preloadedlibs; lib->func; lib++) {
lua_pushcfunction(L, lib->func);
lua_pushstring(L, lib->name);
lua_call(L, 1, 0);
lua_setfield(L, -2, lib->name);
}
lua_pop(L, 1); /* remove _PRELOAD table */
}

494
depends/lua/src/liolib.c
Unescape Escape View File

@ -1,10 +1,20 @@
/*
** $Id: liolib.c,v 2.73.1.3 2008/01/18 17:47:43 roberto Exp $
** $Id: liolib.c,v 2.108 2011/11/25 12:50:03 roberto Exp $
** Standard I/O (and system) library
** See Copyright Notice in lua.h
*/
/*
** POSIX idiosyncrasy!
** This definition must come before the inclusion of 'stdio.h'; it
** should not affect non-POSIX systems
*/
#if !defined(_FILE_OFFSET_BITS)
#define _FILE_OFFSET_BITS 64
#endif
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
@ -20,48 +30,95 @@
#define IO_INPUT 1
#define IO_OUTPUT 2
/*
** {======================================================
** lua_popen spawns a new process connected to the current
** one through the file streams.
** =======================================================
*/
#if !defined(lua_popen) /* { */
static const char *const fnames[] = {"input", "output"};
#if defined(LUA_USE_POPEN) /* { */
#define lua_popen(L,c,m) ((void)L, fflush(NULL), popen(c,m))
#define lua_pclose(L,file) ((void)L, pclose(file))
static int pushresult (lua_State *L, int i, const char *filename) {
int en = errno; /* calls to Lua API may change this value */
if (i) {
lua_pushboolean(L, 1);
return 1;
}
else {
lua_pushnil(L);
if (filename)
lua_pushfstring(L, "%s: %s", filename, strerror(en));
else
lua_pushfstring(L, "%s", strerror(en));
lua_pushinteger(L, en);
return 3;
}
}
#elif defined(LUA_WIN) /* }{ */
#define lua_popen(L,c,m) ((void)L, _popen(c,m))
#define lua_pclose(L,file) ((void)L, _pclose(file))
static void fileerror (lua_State *L, int arg, const char *filename) {
lua_pushfstring(L, "%s: %s", filename, strerror(errno));
luaL_argerror(L, arg, lua_tostring(L, -1));
}
#else /* }{ */
#define lua_popen(L,c,m) ((void)((void)c, m), \
luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0)
#define lua_pclose(L,file) ((void)((void)L, file), -1)
#endif /* } */
#endif /* } */
/* }====================================================== */
/*
** {======================================================
** lua_fseek/lua_ftell: configuration for longer offsets
** =======================================================
*/
#if !defined(lua_fseek) /* { */
#if defined(LUA_USE_POSIX)
#define l_fseek(f,o,w) fseeko(f,o,w)
#define l_ftell(f) ftello(f)
#define l_seeknum off_t
#define tofilep(L) ((FILE **)luaL_checkudata(L, 1, LUA_FILEHANDLE))
#elif defined(LUA_WIN) && !defined(_CRTIMP_TYPEINFO) \
&& defined(_MSC_VER) && (_MSC_VER >= 1400)
/* Windows (but not DDK) and Visual C++ 2005 or higher */
#define l_fseek(f,o,w) _fseeki64(f,o,w)
#define l_ftell(f) _ftelli64(f)
#define l_seeknum __int64
#else
#define l_fseek(f,o,w) fseek(f,o,w)
#define l_ftell(f) ftell(f)
#define l_seeknum long
#endif
#endif /* } */
/* }====================================================== */
#define IO_PREFIX "_IO_"
#define IO_INPUT (IO_PREFIX "input")
#define IO_OUTPUT (IO_PREFIX "output")
typedef luaL_Stream LStream;
#define tolstream(L) ((LStream *)luaL_checkudata(L, 1, LUA_FILEHANDLE))
#define isclosed(p) ((p)->closef == NULL)
static int io_type (lua_State *L) {
void *ud;
LStream *p;
luaL_checkany(L, 1);
ud = lua_touserdata(L, 1);
lua_getfield(L, LUA_REGISTRYINDEX, LUA_FILEHANDLE);
if (ud == NULL || !lua_getmetatable(L, 1) || !lua_rawequal(L, -2, -1))
p = (LStream *)luaL_testudata(L, 1, LUA_FILEHANDLE);
if (p == NULL)
lua_pushnil(L); /* not a file */
else if (*((FILE **)ud) == NULL)
else if (isclosed(p))
lua_pushliteral(L, "closed file");
else
lua_pushliteral(L, "file");
@ -69,47 +126,59 @@ static int io_type (lua_State *L) {
}
static int f_tostring (lua_State *L) {
LStream *p = tolstream(L);
if (isclosed(p))
lua_pushliteral(L, "file (closed)");
else
lua_pushfstring(L, "file (%p)", p->f);
return 1;
}
static FILE *tofile (lua_State *L) {
FILE **f = tofilep(L);
if (*f == NULL)
LStream *p = tolstream(L);
if (isclosed(p))
luaL_error(L, "attempt to use a closed file");
return *f;
lua_assert(p->f);
return p->f;
}
/*
** When creating file handles, always creates a `closed' file handle
** before opening the actual file; so, if there is a memory error, the
** file is not left opened.
*/
static FILE **newfile (lua_State *L) {
FILE **pf = (FILE **)lua_newuserdata(L, sizeof(FILE *));
*pf = NULL; /* file handle is currently `closed' */
luaL_getmetatable(L, LUA_FILEHANDLE);
lua_setmetatable(L, -2);
return pf;
static LStream *newprefile (lua_State *L) {
LStream *p = (LStream *)lua_newuserdata(L, sizeof(LStream));
p->closef = NULL; /* mark file handle as 'closed' */
luaL_setmetatable(L, LUA_FILEHANDLE);
return p;
}
/*
** function to (not) close the standard files stdin, stdout, and stderr
*/
static int io_noclose (lua_State *L) {
lua_pushnil(L);
lua_pushliteral(L, "cannot close standard file");
return 2;
static int aux_close (lua_State *L) {
LStream *p = tolstream(L);
lua_CFunction cf = p->closef;
p->closef = NULL; /* mark stream as closed */
return (*cf)(L); /* close it */
}
/*
** function to close 'popen' files
*/
static int io_pclose (lua_State *L) {
FILE **p = tofilep(L);
int ok = lua_pclose(L, *p);
*p = NULL;
return pushresult(L, ok, NULL);
static int io_close (lua_State *L) {
if (lua_isnone(L, 1)) /* no argument? */
lua_getfield(L, LUA_REGISTRYINDEX, IO_OUTPUT); /* use standard output */
tofile(L); /* make sure argument is an open stream */
return aux_close(L);
}
static int f_gc (lua_State *L) {
LStream *p = tolstream(L);
if (!isclosed(p) && p->f != NULL)
aux_close(L); /* ignore closed and incompletely open files */
return 0;
}
@ -117,103 +186,94 @@ static int io_pclose (lua_State *L) {
** function to close regular files
*/
static int io_fclose (lua_State *L) {
FILE **p = tofilep(L);
int ok = (fclose(*p) == 0);
*p = NULL;
return pushresult(L, ok, NULL);
}
static int aux_close (lua_State *L) {
lua_getfenv(L, 1);
lua_getfield(L, -1, "__close");
return (lua_tocfunction(L, -1))(L);
}
static int io_close (lua_State *L) {
if (lua_isnone(L, 1))
lua_rawgeti(L, LUA_ENVIRONINDEX, IO_OUTPUT);
tofile(L); /* make sure argument is a file */
return aux_close(L);
LStream *p = tolstream(L);
int res = fclose(p->f);
return luaL_fileresult(L, (res == 0), NULL);
}
static int io_gc (lua_State *L) {
FILE *f = *tofilep(L);
/* ignore closed files */
if (f != NULL)
aux_close(L);
return 0;
static LStream *newfile (lua_State *L) {
LStream *p = newprefile(L);
p->f = NULL;
p->closef = &io_fclose;
return p;
}
static int io_tostring (lua_State *L) {
FILE *f = *tofilep(L);
if (f == NULL)
lua_pushliteral(L, "file (closed)");
else
lua_pushfstring(L, "file (%p)", f);
return 1;
static void opencheck (lua_State *L, const char *fname, const char *mode) {
LStream *p = newfile(L);
p->f = fopen(fname, mode);
if (p->f == NULL)
luaL_error(L, "cannot open file " LUA_QS " (%s)", fname, strerror(errno));
}
static int io_open (lua_State *L) {
const char *filename = luaL_checkstring(L, 1);
const char *mode = luaL_optstring(L, 2, "r");
FILE **pf = newfile(L);
*pf = fopen(filename, mode);
return (*pf == NULL) ? pushresult(L, 0, filename) : 1;
LStream *p = newfile(L);
int i = 0;
/* check whether 'mode' matches '[rwa]%+?b?' */
if (!(mode[i] != '\0' && strchr("rwa", mode[i++]) != NULL &&
(mode[i] != '+' || ++i) && /* skip if char is '+' */
(mode[i] != 'b' || ++i) && /* skip if char is 'b' */
(mode[i] == '\0')))
return luaL_error(L, "invalid mode " LUA_QS
" (should match " LUA_QL("[rwa]%%+?b?") ")", mode);
p->f = fopen(filename, mode);
return (p->f == NULL) ? luaL_fileresult(L, 0, filename) : 1;
}
/*
** this function has a separated environment, which defines the
** correct __close for 'popen' files
** function to close 'popen' files
*/
static int io_pclose (lua_State *L) {
LStream *p = tolstream(L);
return luaL_execresult(L, lua_pclose(L, p->f));
}
static int io_popen (lua_State *L) {
const char *filename = luaL_checkstring(L, 1);
const char *mode = luaL_optstring(L, 2, "r");
FILE **pf = newfile(L);
*pf = lua_popen(L, filename, mode);
return (*pf == NULL) ? pushresult(L, 0, filename) : 1;
LStream *p = newprefile(L);
p->f = lua_popen(L, filename, mode);
p->closef = &io_pclose;
return (p->f == NULL) ? luaL_fileresult(L, 0, filename) : 1;
}
static int io_tmpfile (lua_State *L) {
FILE **pf = newfile(L);
*pf = tmpfile();
return (*pf == NULL) ? pushresult(L, 0, NULL) : 1;
LStream *p = newfile(L);
p->f = tmpfile();
return (p->f == NULL) ? luaL_fileresult(L, 0, NULL) : 1;
}
static FILE *getiofile (lua_State *L, int findex) {
FILE *f;
lua_rawgeti(L, LUA_ENVIRONINDEX, findex);
f = *(FILE **)lua_touserdata(L, -1);
if (f == NULL)
luaL_error(L, "standard %s file is closed", fnames[findex - 1]);
return f;
static FILE *getiofile (lua_State *L, const char *findex) {
LStream *p;
lua_getfield(L, LUA_REGISTRYINDEX, findex);
p = (LStream *)lua_touserdata(L, -1);
if (isclosed(p))
luaL_error(L, "standard %s file is closed", findex + strlen(IO_PREFIX));
return p->f;
}
static int g_iofile (lua_State *L, int f, const char *mode) {
static int g_iofile (lua_State *L, const char *f, const char *mode) {
if (!lua_isnoneornil(L, 1)) {
const char *filename = lua_tostring(L, 1);
if (filename) {
FILE **pf = newfile(L);
*pf = fopen(filename, mode);
if (*pf == NULL)
fileerror(L, 1, filename);
}
if (filename)
opencheck(L, filename, mode);
else {
tofile(L); /* check that it's a valid file handle */
lua_pushvalue(L, 1);
}
lua_rawseti(L, LUA_ENVIRONINDEX, f);
lua_setfield(L, LUA_REGISTRYINDEX, f);
}
/* return current value */
lua_rawgeti(L, LUA_ENVIRONINDEX, f);
lua_getfield(L, LUA_REGISTRYINDEX, f);
return 1;
}
@ -231,35 +291,43 @@ static int io_output (lua_State *L) {
static int io_readline (lua_State *L);
static void aux_lines (lua_State *L, int idx, int toclose) {
lua_pushvalue(L, idx);
static void aux_lines (lua_State *L, int toclose) {
int i;
int n = lua_gettop(L) - 1; /* number of arguments to read */
/* ensure that arguments will fit here and into 'io_readline' stack */
luaL_argcheck(L, n <= LUA_MINSTACK - 3, LUA_MINSTACK - 3, "too many options");
lua_pushvalue(L, 1); /* file handle */
lua_pushinteger(L, n); /* number of arguments to read */
lua_pushboolean(L, toclose); /* close/not close file when finished */
lua_pushcclosure(L, io_readline, 2);
for (i = 1; i <= n; i++) lua_pushvalue(L, i + 1); /* copy arguments */
lua_pushcclosure(L, io_readline, 3 + n);
}
static int f_lines (lua_State *L) {
tofile(L); /* check that it's a valid file handle */
aux_lines(L, 1, 0);
aux_lines(L, 0);
return 1;
}
static int io_lines (lua_State *L) {
if (lua_isnoneornil(L, 1)) { /* no arguments? */
/* will iterate over default input */
lua_rawgeti(L, LUA_ENVIRONINDEX, IO_INPUT);
return f_lines(L);
int toclose;
if (lua_isnone(L, 1)) lua_pushnil(L); /* at least one argument */
if (lua_isnil(L, 1)) { /* no file name? */
lua_getfield(L, LUA_REGISTRYINDEX, IO_INPUT); /* get default input */
lua_replace(L, 1); /* put it at index 1 */
tofile(L); /* check that it's a valid file handle */
toclose = 0; /* do not close it after iteration */
}
else {
else { /* open a new file */
const char *filename = luaL_checkstring(L, 1);
FILE **pf = newfile(L);
*pf = fopen(filename, "r");
if (*pf == NULL)
fileerror(L, 1, filename);
aux_lines(L, lua_gettop(L), 1);
return 1;
opencheck(L, filename, "r");
lua_replace(L, 1); /* put file at index 1 */
toclose = 1; /* close it after iteration */
}
aux_lines(L, toclose);
return 1;
}
@ -276,7 +344,10 @@ static int read_number (lua_State *L, FILE *f) {
lua_pushnumber(L, d);
return 1;
}
else return 0; /* read fails */
else {
lua_pushnil(L); /* "result" to be removed */
return 0; /* read fails */
}
}
@ -288,7 +359,7 @@ static int test_eof (lua_State *L, FILE *f) {
}
static int read_line (lua_State *L, FILE *f) {
static int read_line (lua_State *L, FILE *f, int chop) {
luaL_Buffer b;
luaL_buffinit(L, &b);
for (;;) {
@ -296,13 +367,13 @@ static int read_line (lua_State *L, FILE *f) {
char *p = luaL_prepbuffer(&b);
if (fgets(p, LUAL_BUFFERSIZE, f) == NULL) { /* eof? */
luaL_pushresult(&b); /* close buffer */
return (lua_objlen(L, -1) > 0); /* check whether read something */
return (lua_rawlen(L, -1) > 0); /* check whether read something */
}
l = strlen(p);
if (l == 0 || p[l-1] != '\n')
luaL_addsize(&b, l);
else {
luaL_addsize(&b, l - 1); /* do not include `eol' */
luaL_addsize(&b, l - chop); /* chop 'eol' if needed */
luaL_pushresult(&b); /* close buffer */
return 1; /* read at least an `eol' */
}
@ -310,21 +381,34 @@ static int read_line (lua_State *L, FILE *f) {
}
#define MAX_SIZE_T (~(size_t)0)
static void read_all (lua_State *L, FILE *f) {
size_t rlen = LUAL_BUFFERSIZE; /* how much to read in each cycle */
luaL_Buffer b;
luaL_buffinit(L, &b);
for (;;) {
char *p = luaL_prepbuffsize(&b, rlen);
size_t nr = fread(p, sizeof(char), rlen, f);
luaL_addsize(&b, nr);
if (nr < rlen) break; /* eof? */
else if (rlen <= (MAX_SIZE_T / 4)) /* avoid buffers too large */
rlen *= 2; /* double buffer size at each iteration */
}
luaL_pushresult(&b); /* close buffer */
}
static int read_chars (lua_State *L, FILE *f, size_t n) {
size_t rlen; /* how much to read */
size_t nr; /* number of chars actually read */
char *p;
luaL_Buffer b;
luaL_buffinit(L, &b);
rlen = LUAL_BUFFERSIZE; /* try to read that much each time */
do {
char *p = luaL_prepbuffer(&b);
if (rlen > n) rlen = n; /* cannot read more than asked */
nr = fread(p, sizeof(char), rlen, f);
p = luaL_prepbuffsize(&b, n); /* prepare buffer to read whole block */
nr = fread(p, sizeof(char), n, f); /* try to read 'n' chars */
luaL_addsize(&b, nr);
n -= nr; /* still have to read `n' chars */
} while (n > 0 && nr == rlen); /* until end of count or eof */
luaL_pushresult(&b); /* close buffer */
return (n == 0 || lua_objlen(L, -1) > 0);
return (nr > 0); /* true iff read something */
}
@ -334,7 +418,7 @@ static int g_read (lua_State *L, FILE *f, int first) {
int n;
clearerr(f);
if (nargs == 0) { /* no arguments? */
success = read_line(L, f);
success = read_line(L, f, 1);
n = first+1; /* to return 1 result */
}
else { /* ensure stack space for all results and for auxlib's buffer */
@ -353,10 +437,13 @@ static int g_read (lua_State *L, FILE *f, int first) {
success = read_number(L, f);
break;
case 'l': /* line */
success = read_line(L, f);
success = read_line(L, f, 1);
break;
case 'L': /* line with end-of-line */
success = read_line(L, f, 0);
break;
case 'a': /* file */
read_chars(L, f, ~((size_t)0)); /* read MAX_SIZE_T chars */
read_all(L, f); /* read entire file */
success = 1; /* always success */
break;
default:
@ -366,7 +453,7 @@ static int g_read (lua_State *L, FILE *f, int first) {
}
}
if (ferror(f))
return pushresult(L, 0, NULL);
return luaL_fileresult(L, 0, NULL);
if (!success) {
lua_pop(L, 1); /* remove last result */
lua_pushnil(L); /* push nil instead */
@ -386,16 +473,24 @@ static int f_read (lua_State *L) {
static int io_readline (lua_State *L) {
FILE *f = *(FILE **)lua_touserdata(L, lua_upvalueindex(1));
int sucess;
if (f == NULL) /* file is already closed? */
luaL_error(L, "file is already closed");
sucess = read_line(L, f);
if (ferror(f))
return luaL_error(L, "%s", strerror(errno));
if (sucess) return 1;
else { /* EOF */
if (lua_toboolean(L, lua_upvalueindex(2))) { /* generator created file? */
LStream *p = (LStream *)lua_touserdata(L, lua_upvalueindex(1));
int i;
int n = (int)lua_tointeger(L, lua_upvalueindex(2));
if (isclosed(p)) /* file is already closed? */
return luaL_error(L, "file is already closed");
lua_settop(L , 1);
for (i = 1; i <= n; i++) /* push arguments to 'g_read' */
lua_pushvalue(L, lua_upvalueindex(3 + i));
n = g_read(L, p->f, 2); /* 'n' is number of results */
lua_assert(n > 0); /* should return at least a nil */
if (!lua_isnil(L, -n)) /* read at least one value? */
return n; /* return them */
else { /* first result is nil: EOF or error */
if (n > 1) { /* is there error information? */
/* 2nd result is error message */
return luaL_error(L, "%s", lua_tostring(L, -n + 1));
}
if (lua_toboolean(L, lua_upvalueindex(3))) { /* generator created file? */
lua_settop(L, 0);
lua_pushvalue(L, lua_upvalueindex(1));
aux_close(L); /* close it */
@ -408,7 +503,7 @@ static int io_readline (lua_State *L) {
static int g_write (lua_State *L, FILE *f, int arg) {
int nargs = lua_gettop(L) - 1;
int nargs = lua_gettop(L) - arg;
int status = 1;
for (; nargs--; arg++) {
if (lua_type(L, arg) == LUA_TNUMBER) {
@ -422,7 +517,8 @@ static int g_write (lua_State *L, FILE *f, int arg) {
status = status && (fwrite(s, sizeof(char), l, f) == l);
}
}
return pushresult(L, status, NULL);
if (status) return 1; /* file handle already on stack top */
else return luaL_fileresult(L, status, NULL);
}
@ -432,7 +528,9 @@ static int io_write (lua_State *L) {
static int f_write (lua_State *L) {
return g_write(L, tofile(L), 2);
FILE *f = tofile(L);
lua_pushvalue(L, 1); /* push file at the stack top (to be returned) */
return g_write(L, f, 2);
}
@ -441,12 +539,15 @@ static int f_seek (lua_State *L) {
static const char *const modenames[] = {"set", "cur", "end", NULL};
FILE *f = tofile(L);
int op = luaL_checkoption(L, 2, "cur", modenames);
long offset = luaL_optlong(L, 3, 0);
op = fseek(f, offset, mode[op]);
lua_Number p3 = luaL_optnumber(L, 3, 0);
l_seeknum offset = (l_seeknum)p3;
luaL_argcheck(L, (lua_Number)offset == p3, 3,
"not an integer in proper range");
op = l_fseek(f, offset, mode[op]);
if (op)
return pushresult(L, 0, NULL); /* error */
return luaL_fileresult(L, 0, NULL); /* error */
else {
lua_pushinteger(L, ftell(f));
lua_pushnumber(L, (lua_Number)l_ftell(f));
return 1;
}
}
@ -459,21 +560,24 @@ static int f_setvbuf (lua_State *L) {
int op = luaL_checkoption(L, 2, NULL, modenames);
lua_Integer sz = luaL_optinteger(L, 3, LUAL_BUFFERSIZE);
int res = setvbuf(f, NULL, mode[op], sz);
return pushresult(L, res == 0, NULL);
return luaL_fileresult(L, res == 0, NULL);
}
static int io_flush (lua_State *L) {
return pushresult(L, fflush(getiofile(L, IO_OUTPUT)) == 0, NULL);
return luaL_fileresult(L, fflush(getiofile(L, IO_OUTPUT)) == 0, NULL);
}
static int f_flush (lua_State *L) {
return pushresult(L, fflush(tofile(L)) == 0, NULL);
return luaL_fileresult(L, fflush(tofile(L)) == 0, NULL);
}
/*
** functions for 'io' library
*/
static const luaL_Reg iolib[] = {
{"close", io_close},
{"flush", io_flush},
@ -490,6 +594,9 @@ static const luaL_Reg iolib[] = {
};
/*
** methods for file handles
*/
static const luaL_Reg flib[] = {
{"close", io_close},
{"flush", f_flush},
@ -498,8 +605,8 @@ static const luaL_Reg flib[] = {
{"seek", f_seek},
{"setvbuf", f_setvbuf},
{"write", f_write},
{"__gc", io_gc},
{"__tostring", io_tostring},
{"__gc", f_gc},
{"__tostring", f_tostring},
{NULL, NULL}
};
@ -508,46 +615,43 @@ static void createmeta (lua_State *L) {
luaL_newmetatable(L, LUA_FILEHANDLE); /* create metatable for file handles */
lua_pushvalue(L, -1); /* push metatable */
lua_setfield(L, -2, "__index"); /* metatable.__index = metatable */
luaL_register(L, NULL, flib); /* file methods */
luaL_setfuncs(L, flib, 0); /* add file methods to new metatable */
lua_pop(L, 1); /* pop new metatable */
}
static void createstdfile (lua_State *L, FILE *f, int k, const char *fname) {
*newfile(L) = f;
if (k > 0) {
lua_pushvalue(L, -1);
lua_rawseti(L, LUA_ENVIRONINDEX, k);
}
lua_pushvalue(L, -2); /* copy environment */
lua_setfenv(L, -2); /* set it */
lua_setfield(L, -3, fname);
/*
** function to (not) close the standard files stdin, stdout, and stderr
*/
static int io_noclose (lua_State *L) {
LStream *p = tolstream(L);
p->closef = &io_noclose; /* keep file opened */
lua_pushnil(L);
lua_pushliteral(L, "cannot close standard file");
return 2;
}
static void newfenv (lua_State *L, lua_CFunction cls) {
lua_createtable(L, 0, 1);
lua_pushcfunction(L, cls);
lua_setfield(L, -2, "__close");
static void createstdfile (lua_State *L, FILE *f, const char *k,
const char *fname) {
LStream *p = newprefile(L);
p->f = f;
p->closef = &io_noclose;
if (k != NULL) {
lua_pushvalue(L, -1);
lua_setfield(L, LUA_REGISTRYINDEX, k); /* add file to registry */
}
lua_setfield(L, -2, fname); /* add file to module */
}
LUALIB_API int luaopen_io (lua_State *L) {
LUAMOD_API int luaopen_io (lua_State *L) {
luaL_newlib(L, iolib); /* new module */
createmeta(L);
/* create (private) environment (with fields IO_INPUT, IO_OUTPUT, __close) */
newfenv(L, io_fclose);
lua_replace(L, LUA_ENVIRONINDEX);
/* open library */
luaL_register(L, LUA_IOLIBNAME, iolib);
/* create (and set) default files */
newfenv(L, io_noclose); /* close function for default files */
createstdfile(L, stdin, IO_INPUT, "stdin");
createstdfile(L, stdout, IO_OUTPUT, "stdout");
createstdfile(L, stderr, 0, "stderr");
lua_pop(L, 1); /* pop environment for default files */
lua_getfield(L, -1, "popen");
newfenv(L, io_pclose); /* create environment for 'popen' */
lua_setfenv(L, -2); /* set fenv for 'popen' */
lua_pop(L, 1); /* pop 'popen' */
createstdfile(L, stderr, NULL, "stderr");
return 1;
}

331
depends/lua/src/llex.c
Unescape Escape View File

@ -1,11 +1,10 @@
/*
** $Id: llex.c,v 2.20.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: llex.c,v 2.59 2011/11/30 12:43:51 roberto Exp $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <locale.h>
#include <string.h>
@ -14,6 +13,7 @@
#include "lua.h"
#include "lctype.h"
#include "ldo.h"
#include "llex.h"
#include "lobject.h"
@ -29,35 +29,36 @@
#define currIsNewline(ls) (ls->current == '\n' || ls->current == '\r')
/* ORDER RESERVED */
const char *const luaX_tokens [] = {
static const char *const luaX_tokens [] = {
"and", "break", "do", "else", "elseif",
"end", "false", "for", "function", "if",
"end", "false", "for", "function", "goto", "if",
"in", "local", "nil", "not", "or", "repeat",
"return", "then", "true", "until", "while",
"..", "...", "==", ">=", "<=", "~=",
"<number>", "<name>", "<string>", "<eof>",
NULL
"..", "...", "==", ">=", "<=", "~=", "::", "<eof>",
"<number>", "<name>", "<string>"
};
#define save_and_next(ls) (save(ls, ls->current), next(ls))
static l_noret lexerror (LexState *ls, const char *msg, int token);
static void save (LexState *ls, int c) {
Mbuffer *b = ls->buff;
if (b->n + 1 > b->buffsize) {
if (luaZ_bufflen(b) + 1 > luaZ_sizebuffer(b)) {
size_t newsize;
if (b->buffsize >= MAX_SIZET/2)
luaX_lexerror(ls, "lexical element too long", 0);
newsize = b->buffsize * 2;
if (luaZ_sizebuffer(b) >= MAX_SIZET/2)
lexerror(ls, "lexical element too long", 0);
newsize = luaZ_sizebuffer(b) * 2;
luaZ_resizebuffer(ls->L, b, newsize);
}
b->buffer[b->n++] = cast(char, c);
b->buffer[luaZ_bufflen(b)++] = cast(char, c);
}
@ -66,23 +67,24 @@ void luaX_init (lua_State *L) {
for (i=0; i<NUM_RESERVED; i++) {
TString *ts = luaS_new(L, luaX_tokens[i]);
luaS_fix(ts); /* reserved words are never collected */
lua_assert(strlen(luaX_tokens[i])+1 <= TOKEN_LEN);
ts->tsv.reserved = cast_byte(i+1); /* reserved word */
}
}
#define MAXSRC 80
const char *luaX_token2str (LexState *ls, int token) {
if (token < FIRST_RESERVED) {
lua_assert(token == cast(unsigned char, token));
return (iscntrl(token)) ? luaO_pushfstring(ls->L, "char(%d)", token) :
luaO_pushfstring(ls->L, "%c", token);
return (lisprint(token)) ? luaO_pushfstring(ls->L, LUA_QL("%c"), token) :
luaO_pushfstring(ls->L, "char(%d)", token);
}
else {
const char *s = luaX_tokens[token - FIRST_RESERVED];
if (token < TK_EOS)
return luaO_pushfstring(ls->L, LUA_QS, s);
else
return luaX_tokens[token-FIRST_RESERVED];
return s;
}
}
@ -92,38 +94,54 @@ static const char *txtToken (LexState *ls, int token) {
case TK_STRING:
case TK_NUMBER:
save(ls, '\0');
return luaZ_buffer(ls->buff);
return luaO_pushfstring(ls->L, LUA_QS, luaZ_buffer(ls->buff));
default:
return luaX_token2str(ls, token);
}
}
void luaX_lexerror (LexState *ls, const char *msg, int token) {
char buff[MAXSRC];
luaO_chunkid(buff, getstr(ls->source), MAXSRC);
static l_noret lexerror (LexState *ls, const char *msg, int token) {
char buff[LUA_IDSIZE];
luaO_chunkid(buff, getstr(ls->source), LUA_IDSIZE);
msg = luaO_pushfstring(ls->L, "%s:%d: %s", buff, ls->linenumber, msg);
if (token)
luaO_pushfstring(ls->L, "%s near " LUA_QS, msg, txtToken(ls, token));
luaO_pushfstring(ls->L, "%s near %s", msg, txtToken(ls, token));
luaD_throw(ls->L, LUA_ERRSYNTAX);
}
void luaX_syntaxerror (LexState *ls, const char *msg) {
luaX_lexerror(ls, msg, ls->t.token);
l_noret luaX_syntaxerror (LexState *ls, const char *msg) {
lexerror(ls, msg, ls->t.token);
}
/*
** creates a new string and anchors it in function's table so that
** it will not be collected until the end of the function's compilation
** (by that time it should be anchored in function's prototype)
*/
TString *luaX_newstring (LexState *ls, const char *str, size_t l) {
lua_State *L = ls->L;
TString *ts = luaS_newlstr(L, str, l);
TValue *o = luaH_setstr(L, ls->fs->h, ts); /* entry for `str' */
if (ttisnil(o))
setbvalue(o, 1); /* make sure `str' will not be collected */
TValue *o; /* entry for `str' */
TString *ts = luaS_newlstr(L, str, l); /* create new string */
setsvalue2s(L, L->top++, ts); /* temporarily anchor it in stack */
o = luaH_set(L, ls->fs->h, L->top - 1);
if (ttisnil(o)) { /* not in use yet? (see 'addK') */
/* boolean value does not need GC barrier;
table has no metatable, so it does not need to invalidate cache */
setbvalue(o, 1); /* t[string] = true */
luaC_checkGC(L);
}
L->top--; /* remove string from stack */
return ts;
}
/*
** increment line number and skips newline sequence (any of
** \n, \r, \n\r, or \r\n)
*/
static void inclinenumber (LexState *ls) {
int old = ls->current;
lua_assert(currIsNewline(ls));
@ -135,17 +153,20 @@ static void inclinenumber (LexState *ls) {
}
void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source) {
void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source,
int firstchar) {
ls->decpoint = '.';
ls->L = L;
ls->current = firstchar;
ls->lookahead.token = TK_EOS; /* no look-ahead token */
ls->z = z;
ls->fs = NULL;
ls->linenumber = 1;
ls->lastline = 1;
ls->source = source;
ls->envn = luaS_new(L, LUA_ENV); /* create env name */
luaS_fix(ls->envn); /* never collect this name */
luaZ_resizebuffer(ls->L, ls->buff, LUA_MINBUFFER); /* initialize buffer */
next(ls); /* read first char */
}
@ -159,13 +180,16 @@ void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source) {
static int check_next (LexState *ls, const char *set) {
if (!strchr(set, ls->current))
if (ls->current == '\0' || !strchr(set, ls->current))
return 0;
save_and_next(ls);
return 1;
}
/*
** change all characters 'from' in buffer to 'to'
*/
static void buffreplace (LexState *ls, char from, char to) {
size_t n = luaZ_bufflen(ls->buff);
char *p = luaZ_buffer(ls->buff);
@ -174,37 +198,48 @@ static void buffreplace (LexState *ls, char from, char to) {
}
#if !defined(getlocaledecpoint)
#define getlocaledecpoint() (localeconv()->decimal_point[0])
#endif
#define buff2d(b,e) luaO_str2d(luaZ_buffer(b), luaZ_bufflen(b) - 1, e)
/*
** in case of format error, try to change decimal point separator to
** the one defined in the current locale and check again
*/
static void trydecpoint (LexState *ls, SemInfo *seminfo) {
/* format error: try to update decimal point separator */
struct lconv *cv = localeconv();
char old = ls->decpoint;
ls->decpoint = (cv ? cv->decimal_point[0] : '.');
buffreplace(ls, old, ls->decpoint); /* try updated decimal separator */
if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) {
ls->decpoint = getlocaledecpoint();
buffreplace(ls, old, ls->decpoint); /* try new decimal separator */
if (!buff2d(ls->buff, &seminfo->r)) {
/* format error with correct decimal point: no more options */
buffreplace(ls, ls->decpoint, '.'); /* undo change (for error message) */
luaX_lexerror(ls, "malformed number", TK_NUMBER);
lexerror(ls, "malformed number", TK_NUMBER);
}
}
/* LUA_NUMBER */
static void read_numeral (LexState *ls, SemInfo *seminfo) {
lua_assert(isdigit(ls->current));
lua_assert(lisdigit(ls->current));
do {
save_and_next(ls);
} while (isdigit(ls->current) || ls->current == '.');
if (check_next(ls, "Ee")) /* `E'? */
if (check_next(ls, "EePp")) /* exponent part? */
check_next(ls, "+-"); /* optional exponent sign */
while (isalnum(ls->current) || ls->current == '_')
save_and_next(ls);
} while (lislalnum(ls->current) || ls->current == '.');
save(ls, '\0');
buffreplace(ls, '.', ls->decpoint); /* follow locale for decimal point */
if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) /* format error? */
if (!buff2d(ls->buff, &seminfo->r)) /* format error? */
trydecpoint(ls, seminfo); /* try to update decimal point separator */
}
/*
** skip a sequence '[=*[' or ']=*]' and return its number of '='s or
** -1 if sequence is malformed
*/
static int skip_sep (LexState *ls) {
int count = 0;
int s = ls->current;
@ -219,43 +254,23 @@ static int skip_sep (LexState *ls) {
static void read_long_string (LexState *ls, SemInfo *seminfo, int sep) {
int cont = 0;
(void)(cont); /* avoid warnings when `cont' is not used */
save_and_next(ls); /* skip 2nd `[' */
if (currIsNewline(ls)) /* string starts with a newline? */
inclinenumber(ls); /* skip it */
for (;;) {
switch (ls->current) {
case EOZ:
luaX_lexerror(ls, (seminfo) ? "unfinished long string" :
lexerror(ls, (seminfo) ? "unfinished long string" :
"unfinished long comment", TK_EOS);
break; /* to avoid warnings */
#if defined(LUA_COMPAT_LSTR)
case '[': {
if (skip_sep(ls) == sep) {
save_and_next(ls); /* skip 2nd `[' */
cont++;
#if LUA_COMPAT_LSTR == 1
if (sep == 0)
luaX_lexerror(ls, "nesting of [[...]] is deprecated", '[');
#endif
}
break;
}
#endif
case ']': {
if (skip_sep(ls) == sep) {
save_and_next(ls); /* skip 2nd `]' */
#if defined(LUA_COMPAT_LSTR) && LUA_COMPAT_LSTR == 2
cont--;
if (sep == 0 && cont >= 0) break;
#endif
goto endloop;
}
break;
}
case '\n':
case '\r': {
case '\n': case '\r': {
save(ls, '\n');
inclinenumber(ls);
if (!seminfo) luaZ_resetbuffer(ls->buff); /* avoid wasting space */
@ -273,51 +288,91 @@ static void read_long_string (LexState *ls, SemInfo *seminfo, int sep) {
}
static void escerror (LexState *ls, int *c, int n, const char *msg) {
int i;
luaZ_resetbuffer(ls->buff); /* prepare error message */
save(ls, '\\');
for (i = 0; i < n && c[i] != EOZ; i++)
save(ls, c[i]);
lexerror(ls, msg, TK_STRING);
}
static int readhexaesc (LexState *ls) {
int c[3], i; /* keep input for error message */
int r = 0; /* result accumulator */
c[0] = 'x'; /* for error message */
for (i = 1; i < 3; i++) { /* read two hexa digits */
c[i] = next(ls);
if (!lisxdigit(c[i]))
escerror(ls, c, i + 1, "hexadecimal digit expected");
r = (r << 4) + luaO_hexavalue(c[i]);
}
return r;
}
static int readdecesc (LexState *ls) {
int c[3], i;
int r = 0; /* result accumulator */
for (i = 0; i < 3 && lisdigit(ls->current); i++) { /* read up to 3 digits */
c[i] = ls->current;
r = 10*r + c[i] - '0';
next(ls);
}
if (r > UCHAR_MAX)
escerror(ls, c, i, "decimal escape too large");
return r;
}
static void read_string (LexState *ls, int del, SemInfo *seminfo) {
save_and_next(ls);
save_and_next(ls); /* keep delimiter (for error messages) */
while (ls->current != del) {
switch (ls->current) {
case EOZ:
luaX_lexerror(ls, "unfinished string", TK_EOS);
continue; /* to avoid warnings */
lexerror(ls, "unfinished string", TK_EOS);
break; /* to avoid warnings */
case '\n':
case '\r':
luaX_lexerror(ls, "unfinished string", TK_STRING);
continue; /* to avoid warnings */
case '\\': {
int c;
lexerror(ls, "unfinished string", TK_STRING);
break; /* to avoid warnings */
case '\\': { /* escape sequences */
int c; /* final character to be saved */
next(ls); /* do not save the `\' */
switch (ls->current) {
case 'a': c = '\a'; break;
case 'b': c = '\b'; break;
case 'f': c = '\f'; break;
case 'n': c = '\n'; break;
case 'r': c = '\r'; break;
case 't': c = '\t'; break;
case 'v': c = '\v'; break;
case '\n': /* go through */
case '\r': save(ls, '\n'); inclinenumber(ls); continue;
case EOZ: continue; /* will raise an error next loop */
default: {
if (!isdigit(ls->current))
save_and_next(ls); /* handles \\, \", \', and \? */
else { /* \xxx */
int i = 0;
c = 0;
do {
c = 10*c + (ls->current-'0');
next(ls);
} while (++i<3 && isdigit(ls->current));
if (c > UCHAR_MAX)
luaX_lexerror(ls, "escape sequence too large", TK_STRING);
save(ls, c);
case 'a': c = '\a'; goto read_save;
case 'b': c = '\b'; goto read_save;
case 'f': c = '\f'; goto read_save;
case 'n': c = '\n'; goto read_save;
case 'r': c = '\r'; goto read_save;
case 't': c = '\t'; goto read_save;
case 'v': c = '\v'; goto read_save;
case 'x': c = readhexaesc(ls); goto read_save;
case '\n': case '\r':
inclinenumber(ls); c = '\n'; goto only_save;
case '\\': case '\"': case '\'':
c = ls->current; goto read_save;
case EOZ: goto no_save; /* will raise an error next loop */
case 'z': { /* zap following span of spaces */
next(ls); /* skip the 'z' */
while (lisspace(ls->current)) {
if (currIsNewline(ls)) inclinenumber(ls);
else next(ls);
}
continue;
goto no_save;
}
default: {
if (!lisdigit(ls->current))
escerror(ls, &ls->current, 1, "invalid escape sequence");
/* digital escape \ddd */
c = readdecesc(ls);
goto only_save;
}
save(ls, c);
next(ls);
continue;
}
read_save: next(ls); /* read next character */
only_save: save(ls, c); /* save 'c' */
no_save: break;
}
default:
save_and_next(ls);
@ -333,38 +388,41 @@ static int llex (LexState *ls, SemInfo *seminfo) {
luaZ_resetbuffer(ls->buff);
for (;;) {
switch (ls->current) {
case '\n':
case '\r': {
case '\n': case '\r': { /* line breaks */
inclinenumber(ls);
continue;
break;
}
case ' ': case '\f': case '\t': case '\v': { /* spaces */
next(ls);
break;
}
case '-': {
case '-': { /* '-' or '--' (comment) */
next(ls);
if (ls->current != '-') return '-';
/* else is a comment */
next(ls);
if (ls->current == '[') {
if (ls->current == '[') { /* long comment? */
int sep = skip_sep(ls);
luaZ_resetbuffer(ls->buff); /* `skip_sep' may dirty the buffer */
if (sep >= 0) {
read_long_string(ls, NULL, sep); /* long comment */
luaZ_resetbuffer(ls->buff);
continue;
read_long_string(ls, NULL, sep); /* skip long comment */
luaZ_resetbuffer(ls->buff); /* previous call may dirty the buff. */
break;
}
}
/* else short comment */
while (!currIsNewline(ls) && ls->current != EOZ)
next(ls);
continue;
next(ls); /* skip until end of line (or end of file) */
break;
}
case '[': {
case '[': { /* long string or simply '[' */
int sep = skip_sep(ls);
if (sep >= 0) {
read_long_string(ls, seminfo, sep);
return TK_STRING;
}
else if (sep == -1) return '[';
else luaX_lexerror(ls, "invalid long string delimiter", TK_STRING);
else lexerror(ls, "invalid long string delimiter", TK_STRING);
}
case '=': {
next(ls);
@ -386,56 +444,52 @@ static int llex (LexState *ls, SemInfo *seminfo) {
if (ls->current != '=') return '~';
else { next(ls); return TK_NE; }
}
case '"':
case '\'': {
case ':': {
next(ls);
if (ls->current != ':') return ':';
else { next(ls); return TK_DBCOLON; }
}
case '"': case '\'': { /* short literal strings */
read_string(ls, ls->current, seminfo);
return TK_STRING;
}
case '.': {
case '.': { /* '.', '..', '...', or number */
save_and_next(ls);
if (check_next(ls, ".")) {
if (check_next(ls, "."))
return TK_DOTS; /* ... */
else return TK_CONCAT; /* .. */
return TK_DOTS; /* '...' */
else return TK_CONCAT; /* '..' */
}
else if (!isdigit(ls->current)) return '.';
else {
else if (!lisdigit(ls->current)) return '.';
/* else go through */
}
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9': {
read_numeral(ls, seminfo);
return TK_NUMBER;
}
}
case EOZ: {
return TK_EOS;
}
default: {
if (isspace(ls->current)) {
lua_assert(!currIsNewline(ls));
next(ls);
continue;
}
else if (isdigit(ls->current)) {
read_numeral(ls, seminfo);
return TK_NUMBER;
}
else if (isalpha(ls->current) || ls->current == '_') {
/* identifier or reserved word */
if (lislalpha(ls->current)) { /* identifier or reserved word? */
TString *ts;
do {
save_and_next(ls);
} while (isalnum(ls->current) || ls->current == '_');
} while (lislalnum(ls->current));
ts = luaX_newstring(ls, luaZ_buffer(ls->buff),
luaZ_bufflen(ls->buff));
seminfo->ts = ts;
if (ts->tsv.reserved > 0) /* reserved word? */
return ts->tsv.reserved - 1 + FIRST_RESERVED;
else {
seminfo->ts = ts;
return TK_NAME;
}
}
else {
else { /* single-char tokens (+ - / ...) */
int c = ls->current;
next(ls);
return c; /* single-char tokens (+ - / ...) */
return c;
}
}
}
@ -454,8 +508,9 @@ void luaX_next (LexState *ls) {
}
void luaX_lookahead (LexState *ls) {
int luaX_lookahead (LexState *ls) {
lua_assert(ls->lookahead.token == TK_EOS);
ls->lookahead.token = llex(ls, &ls->lookahead.seminfo);
return ls->lookahead.token;
}

94
depends/lua/src/lmathlib.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lmathlib.c,v 1.67.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lmathlib.c,v 1.80 2011/07/05 12:49:35 roberto Exp $
** Standard mathematical library
** See Copyright Notice in lua.h
*/
@ -22,107 +22,127 @@
#define RADIANS_PER_DEGREE (PI/180.0)
/* macro 'l_tg' allows the addition of an 'l' or 'f' to all math operations */
#if !defined(l_tg)
#define l_tg(x) (x)
#endif
static int math_abs (lua_State *L) {
lua_pushnumber(L, fabs(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(fabs)(luaL_checknumber(L, 1)));
return 1;
}
static int math_sin (lua_State *L) {
lua_pushnumber(L, sin(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(sin)(luaL_checknumber(L, 1)));
return 1;
}
static int math_sinh (lua_State *L) {
lua_pushnumber(L, sinh(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(sinh)(luaL_checknumber(L, 1)));
return 1;
}
static int math_cos (lua_State *L) {
lua_pushnumber(L, cos(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(cos)(luaL_checknumber(L, 1)));
return 1;
}
static int math_cosh (lua_State *L) {
lua_pushnumber(L, cosh(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(cosh)(luaL_checknumber(L, 1)));
return 1;
}
static int math_tan (lua_State *L) {
lua_pushnumber(L, tan(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(tan)(luaL_checknumber(L, 1)));
return 1;
}
static int math_tanh (lua_State *L) {
lua_pushnumber(L, tanh(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(tanh)(luaL_checknumber(L, 1)));
return 1;
}
static int math_asin (lua_State *L) {
lua_pushnumber(L, asin(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(asin)(luaL_checknumber(L, 1)));
return 1;
}
static int math_acos (lua_State *L) {
lua_pushnumber(L, acos(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(acos)(luaL_checknumber(L, 1)));
return 1;
}
static int math_atan (lua_State *L) {
lua_pushnumber(L, atan(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(atan)(luaL_checknumber(L, 1)));
return 1;
}
static int math_atan2 (lua_State *L) {
lua_pushnumber(L, atan2(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
lua_pushnumber(L, l_tg(atan2)(luaL_checknumber(L, 1),
luaL_checknumber(L, 2)));
return 1;
}
static int math_ceil (lua_State *L) {
lua_pushnumber(L, ceil(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(ceil)(luaL_checknumber(L, 1)));
return 1;
}
static int math_floor (lua_State *L) {
lua_pushnumber(L, floor(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(floor)(luaL_checknumber(L, 1)));
return 1;
}
static int math_fmod (lua_State *L) {
lua_pushnumber(L, fmod(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
lua_pushnumber(L, l_tg(fmod)(luaL_checknumber(L, 1),
luaL_checknumber(L, 2)));
return 1;
}
static int math_modf (lua_State *L) {
double ip;
double fp = modf(luaL_checknumber(L, 1), &ip);
lua_Number ip;
lua_Number fp = l_tg(modf)(luaL_checknumber(L, 1), &ip);
lua_pushnumber(L, ip);
lua_pushnumber(L, fp);
return 2;
}
static int math_sqrt (lua_State *L) {
lua_pushnumber(L, sqrt(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(sqrt)(luaL_checknumber(L, 1)));
return 1;
}
static int math_pow (lua_State *L) {
lua_pushnumber(L, pow(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
lua_pushnumber(L, l_tg(pow)(luaL_checknumber(L, 1),
luaL_checknumber(L, 2)));
return 1;
}
static int math_log (lua_State *L) {
lua_pushnumber(L, log(luaL_checknumber(L, 1)));
lua_Number x = luaL_checknumber(L, 1);
lua_Number res;
if (lua_isnoneornil(L, 2))
res = l_tg(log)(x);
else {
lua_Number base = luaL_checknumber(L, 2);
if (base == 10.0) res = l_tg(log10)(x);
else res = l_tg(log)(x)/l_tg(log)(base);
}
lua_pushnumber(L, res);
return 1;
}
#if defined(LUA_COMPAT_LOG10)
static int math_log10 (lua_State *L) {
lua_pushnumber(L, log10(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(log10)(luaL_checknumber(L, 1)));
return 1;
}
#endif
static int math_exp (lua_State *L) {
lua_pushnumber(L, exp(luaL_checknumber(L, 1)));
lua_pushnumber(L, l_tg(exp)(luaL_checknumber(L, 1)));
return 1;
}
@ -138,13 +158,14 @@ static int math_rad (lua_State *L) {
static int math_frexp (lua_State *L) {
int e;
lua_pushnumber(L, frexp(luaL_checknumber(L, 1), &e));
lua_pushnumber(L, l_tg(frexp)(luaL_checknumber(L, 1), &e));
lua_pushinteger(L, e);
return 2;
}
static int math_ldexp (lua_State *L) {
lua_pushnumber(L, ldexp(luaL_checknumber(L, 1), luaL_checkint(L, 2)));
lua_pushnumber(L, l_tg(ldexp)(luaL_checknumber(L, 1),
luaL_checkint(L, 2)));
return 1;
}
@ -188,16 +209,16 @@ static int math_random (lua_State *L) {
break;
}
case 1: { /* only upper limit */
int u = luaL_checkint(L, 1);
luaL_argcheck(L, 1<=u, 1, "interval is empty");
lua_pushnumber(L, floor(r*u)+1); /* int between 1 and `u' */
lua_Number u = luaL_checknumber(L, 1);
luaL_argcheck(L, 1.0 <= u, 1, "interval is empty");
lua_pushnumber(L, l_tg(floor)(r*u) + 1.0); /* int in [1, u] */
break;
}
case 2: { /* lower and upper limits */
int l = luaL_checkint(L, 1);
int u = luaL_checkint(L, 2);
lua_Number l = luaL_checknumber(L, 1);
lua_Number u = luaL_checknumber(L, 2);
luaL_argcheck(L, l <= u, 2, "interval is empty");
lua_pushnumber(L, floor(r*(u-l+1))+l); /* int between `l' and `u' */
lua_pushnumber(L, l_tg(floor)(r*(u-l+1)) + l); /* int in [l, u] */
break;
}
default: return luaL_error(L, "wrong number of arguments");
@ -207,7 +228,8 @@ static int math_random (lua_State *L) {
static int math_randomseed (lua_State *L) {
srand(luaL_checkint(L, 1));
srand(luaL_checkunsigned(L, 1));
(void)rand(); /* discard first value to avoid undesirable correlations */
return 0;
}
@ -227,7 +249,9 @@ static const luaL_Reg mathlib[] = {
{"fmod", math_fmod},
{"frexp", math_frexp},
{"ldexp", math_ldexp},
#if defined(LUA_COMPAT_LOG10)
{"log10", math_log10},
#endif
{"log", math_log},
{"max", math_max},
{"min", math_min},
@ -248,16 +272,12 @@ static const luaL_Reg mathlib[] = {
/*
** Open math library
*/
LUALIB_API int luaopen_math (lua_State *L) {
luaL_register(L, LUA_MATHLIBNAME, mathlib);
LUAMOD_API int luaopen_math (lua_State *L) {
luaL_newlib(L, mathlib);
lua_pushnumber(L, PI);
lua_setfield(L, -2, "pi");
lua_pushnumber(L, HUGE_VAL);
lua_setfield(L, -2, "huge");
#if defined(LUA_COMPAT_MOD)
lua_getfield(L, -1, "fmod");
lua_setfield(L, -2, "mod");
#endif
return 1;
}

59
depends/lua/src/lmem.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lmem.c,v 1.70.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lmem.c,v 1.83 2011/11/30 12:42:49 roberto Exp $
** Interface to Memory Manager
** See Copyright Notice in lua.h
*/
@ -14,6 +14,7 @@
#include "ldebug.h"
#include "ldo.h"
#include "lgc.h"
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"
@ -25,12 +26,11 @@
** void * frealloc (void *ud, void *ptr, size_t osize, size_t nsize);
** (`osize' is the old size, `nsize' is the new size)
**
** Lua ensures that (ptr == NULL) iff (osize == 0).
**
** * frealloc(ud, NULL, 0, x) creates a new block of size `x'
** * frealloc(ud, NULL, x, s) creates a new block of size `s' (no
** matter 'x').
**
** * frealloc(ud, p, x, 0) frees the block `p'
** (in this specific case, frealloc must return NULL).
** (in this specific case, frealloc must return NULL);
** particularly, frealloc(ud, NULL, 0, 0) does nothing
** (which is equivalent to free(NULL) in ANSI C)
**
@ -44,12 +44,12 @@
void *luaM_growaux_ (lua_State *L, void *block, int *size, size_t size_elems,
int limit, const char *errormsg) {
int limit, const char *what) {
void *newblock;
int newsize;
if (*size >= limit/2) { /* cannot double it? */
if (*size >= limit) /* cannot grow even a little? */
luaG_runerror(L, errormsg);
luaG_runerror(L, "too many %s (limit is %d)", what, limit);
newsize = limit; /* still have at least one free place */
}
else {
@ -63,9 +63,8 @@ void *luaM_growaux_ (lua_State *L, void *block, int *size, size_t size_elems,
}
void *luaM_toobig (lua_State *L) {
l_noret luaM_toobig (lua_State *L) {
luaG_runerror(L, "memory allocation error: block too big");
return NULL; /* to avoid warnings */
}
@ -74,13 +73,43 @@ void *luaM_toobig (lua_State *L) {
** generic allocation routine.
*/
void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) {
void *newblock;
global_State *g = G(L);
lua_assert((osize == 0) == (block == NULL));
block = (*g->frealloc)(g->ud, block, osize, nsize);
if (block == NULL && nsize > 0)
size_t realosize = (block) ? osize : 0;
lua_assert((realosize == 0) == (block == NULL));
#if defined(HARDMEMTESTS)
if (nsize > realosize && g->gcrunning)
luaC_fullgc(L, 1); /* force a GC whenever possible */
#endif
newblock = (*g->frealloc)(g->ud, block, osize, nsize);
if (newblock == NULL && nsize > 0) {
api_check(L, nsize > realosize,
"realloc cannot fail when shrinking a block");
if (g->gcrunning) {
luaC_fullgc(L, 1); /* try to free some memory... */
newblock = (*g->frealloc)(g->ud, block, osize, nsize); /* try again */
}
if (newblock == NULL)
luaD_throw(L, LUA_ERRMEM);
lua_assert((nsize == 0) == (block == NULL));
g->totalbytes = (g->totalbytes - osize) + nsize;
return block;
}
lua_assert((nsize == 0) == (newblock == NULL));
g->GCdebt = (g->GCdebt + nsize) - realosize;
#if defined(TRACEMEM)
{ /* auxiliary patch to monitor garbage collection.
** To plot, gnuplot with following command:
** plot TRACEMEM using 1:2 with lines, TRACEMEM using 1:3 with lines
*/
static unsigned long total = 0; /* our "time" */
static FILE *f = NULL; /* output file */
total++; /* "time" always grows */
if ((total % 200) == 0) {
if (f == NULL) f = fopen(TRACEMEM, "w");
fprintf(f, "%lu %u %d %d\n", total,
gettotalbytes(g), g->GCdebt, g->gcstate * 10000);
}
}
#endif
return newblock;
}

528
depends/lua/src/loadlib.c
Unescape Escape View File

@ -1,14 +1,22 @@
/*
** $Id: loadlib.c,v 1.52.1.3 2008/08/06 13:29:28 roberto Exp $
** $Id: loadlib.c,v 1.108 2011/12/12 16:34:03 roberto Exp $
** Dynamic library loader for Lua
** See Copyright Notice in lua.h
**
** This module contains an implementation of loadlib for Unix systems
** that have dlfcn, an implementation for Darwin (Mac OS X), an
** implementation for Windows, and a stub for other systems.
** that have dlfcn, an implementation for Windows, and a stub for other
** systems.
*/
/*
** if needed, includes windows header before everything else
*/
#if defined(_WIN32)
#include <windows.h>
#endif
#include <stdlib.h>
#include <string.h>
@ -22,6 +30,61 @@
#include "lualib.h"
/*
** LUA_PATH and LUA_CPATH are the names of the environment
** variables that Lua check to set its paths.
*/
#if !defined(LUA_PATH)
#define LUA_PATH "LUA_PATH"
#endif
#if !defined(LUA_CPATH)
#define LUA_CPATH "LUA_CPATH"
#endif
#define LUA_PATHSUFFIX "_" LUA_VERSION_MAJOR "_" LUA_VERSION_MINOR
#define LUA_PATHVERSION LUA_PATH LUA_PATHSUFFIX
#define LUA_CPATHVERSION LUA_CPATH LUA_PATHSUFFIX
/*
** LUA_PATH_SEP is the character that separates templates in a path.
** LUA_PATH_MARK is the string that marks the substitution points in a
** template.
** LUA_EXEC_DIR in a Windows path is replaced by the executable's
** directory.
** LUA_IGMARK is a mark to ignore all before it when building the
** luaopen_ function name.
*/
#if !defined (LUA_PATH_SEP)
#define LUA_PATH_SEP ";"
#endif
#if !defined (LUA_PATH_MARK)
#define LUA_PATH_MARK "?"
#endif
#if !defined (LUA_EXEC_DIR)
#define LUA_EXEC_DIR "!"
#endif
#if !defined (LUA_IGMARK)
#define LUA_IGMARK "-"
#endif
/*
** LUA_CSUBSEP is the character that replaces dots in submodule names
** when searching for a C loader.
** LUA_LSUBSEP is the character that replaces dots in submodule names
** when searching for a Lua loader.
*/
#if !defined(LUA_CSUBSEP)
#define LUA_CSUBSEP LUA_DIRSEP
#endif
#if !defined(LUA_LSUBSEP)
#define LUA_LSUBSEP LUA_DIRSEP
#endif
/* prefix for open functions in C libraries */
#define LUA_POF "luaopen_"
@ -42,13 +105,16 @@
#define setprogdir(L) ((void)0)
/*
** system-dependent functions
*/
static void ll_unloadlib (void *lib);
static void *ll_load (lua_State *L, const char *path);
static void *ll_load (lua_State *L, const char *path, int seeglb);
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym);
#if defined(LUA_DL_DLOPEN)
#if defined(LUA_USE_DLOPEN)
/*
** {========================================================================
** This is an implementation of loadlib based on the dlfcn interface.
@ -65,8 +131,8 @@ static void ll_unloadlib (void *lib) {
}
static void *ll_load (lua_State *L, const char *path) {
void *lib = dlopen(path, RTLD_NOW);
static void *ll_load (lua_State *L, const char *path, int seeglb) {
void *lib = dlopen(path, RTLD_NOW | (seeglb ? RTLD_GLOBAL : RTLD_LOCAL));
if (lib == NULL) lua_pushstring(L, dlerror());
return lib;
}
@ -89,10 +155,15 @@ static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
** =======================================================================
*/
#include <windows.h>
#undef setprogdir
/*
** optional flags for LoadLibraryEx
*/
#if !defined(LUA_LLE_FLAGS)
#define LUA_LLE_FLAGS 0
#endif
#undef setprogdir
static void setprogdir (lua_State *L) {
char buff[MAX_PATH + 1];
@ -103,7 +174,7 @@ static void setprogdir (lua_State *L) {
luaL_error(L, "unable to get ModuleFileName");
else {
*lb = '\0';
luaL_gsub(L, lua_tostring(L, -1), LUA_EXECDIR, buff);
luaL_gsub(L, lua_tostring(L, -1), LUA_EXEC_DIR, buff);
lua_remove(L, -2); /* remove original string */
}
}
@ -113,26 +184,27 @@ static void pusherror (lua_State *L) {
int error = GetLastError();
char buffer[128];
if (FormatMessageA(FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM,
NULL, error, 0, buffer, sizeof(buffer), NULL))
NULL, error, 0, buffer, sizeof(buffer)/sizeof(char), NULL))
lua_pushstring(L, buffer);
else
lua_pushfstring(L, "system error %d\n", error);
}
static void ll_unloadlib (void *lib) {
FreeLibrary((HINSTANCE)lib);
FreeLibrary((HMODULE)lib);
}
static void *ll_load (lua_State *L, const char *path) {
HINSTANCE lib = LoadLibraryA(path);
static void *ll_load (lua_State *L, const char *path, int seeglb) {
HMODULE lib = LoadLibraryExA(path, NULL, LUA_LLE_FLAGS);
(void)(seeglb); /* not used: symbols are 'global' by default */
if (lib == NULL) pusherror(L);
return lib;
}
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
lua_CFunction f = (lua_CFunction)GetProcAddress((HINSTANCE)lib, sym);
lua_CFunction f = (lua_CFunction)GetProcAddress((HMODULE)lib, sym);
if (f == NULL) pusherror(L);
return f;
}
@ -140,88 +212,6 @@ static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
/* }====================================================== */
#elif defined(LUA_DL_DYLD)
/*
** {======================================================================
** Native Mac OS X / Darwin Implementation
** =======================================================================
*/
#include <mach-o/dyld.h>
/* Mac appends a `_' before C function names */
#undef POF
#define POF "_" LUA_POF
static void pusherror (lua_State *L) {
const char *err_str;
const char *err_file;
NSLinkEditErrors err;
int err_num;
NSLinkEditError(&err, &err_num, &err_file, &err_str);
lua_pushstring(L, err_str);
}
static const char *errorfromcode (NSObjectFileImageReturnCode ret) {
switch (ret) {
case NSObjectFileImageInappropriateFile:
return "file is not a bundle";
case NSObjectFileImageArch:
return "library is for wrong CPU type";
case NSObjectFileImageFormat:
return "bad format";
case NSObjectFileImageAccess:
return "cannot access file";
case NSObjectFileImageFailure:
default:
return "unable to load library";
}
}
static void ll_unloadlib (void *lib) {
NSUnLinkModule((NSModule)lib, NSUNLINKMODULE_OPTION_RESET_LAZY_REFERENCES);
}
static void *ll_load (lua_State *L, const char *path) {
NSObjectFileImage img;
NSObjectFileImageReturnCode ret;
/* this would be a rare case, but prevents crashing if it happens */
if(!_dyld_present()) {
lua_pushliteral(L, "dyld not present");
return NULL;
}
ret = NSCreateObjectFileImageFromFile(path, &img);
if (ret == NSObjectFileImageSuccess) {
NSModule mod = NSLinkModule(img, path, NSLINKMODULE_OPTION_PRIVATE |
NSLINKMODULE_OPTION_RETURN_ON_ERROR);
NSDestroyObjectFileImage(img);
if (mod == NULL) pusherror(L);
return mod;
}
lua_pushstring(L, errorfromcode(ret));
return NULL;
}
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
NSSymbol nss = NSLookupSymbolInModule((NSModule)lib, sym);
if (nss == NULL) {
lua_pushfstring(L, "symbol " LUA_QS " not found", sym);
return NULL;
}
return (lua_CFunction)NSAddressOfSymbol(nss);
}
/* }====================================================== */
#else
/*
** {======================================================
@ -237,19 +227,19 @@ static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
static void ll_unloadlib (void *lib) {
(void)lib; /* to avoid warnings */
(void)(lib); /* not used */
}
static void *ll_load (lua_State *L, const char *path) {
(void)path; /* to avoid warnings */
static void *ll_load (lua_State *L, const char *path, int seeglb) {
(void)(path); (void)(seeglb); /* not used */
lua_pushliteral(L, DLMSG);
return NULL;
}
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
(void)lib; (void)sym; /* to avoid warnings */
(void)(lib); (void)(sym); /* not used */
lua_pushliteral(L, DLMSG);
return NULL;
}
@ -266,11 +256,10 @@ static void **ll_register (lua_State *L, const char *path) {
if (!lua_isnil(L, -1)) /* is there an entry? */
plib = (void **)lua_touserdata(L, -1);
else { /* no entry yet; create one */
lua_pop(L, 1);
lua_pop(L, 1); /* remove result from gettable */
plib = (void **)lua_newuserdata(L, sizeof(const void *));
*plib = NULL;
luaL_getmetatable(L, "_LOADLIB");
lua_setmetatable(L, -2);
luaL_setmetatable(L, "_LOADLIB");
lua_pushfstring(L, "%s%s", LIBPREFIX, path);
lua_pushvalue(L, -2);
lua_settable(L, LUA_REGISTRYINDEX);
@ -293,15 +282,18 @@ static int gctm (lua_State *L) {
static int ll_loadfunc (lua_State *L, const char *path, const char *sym) {
void **reg = ll_register(L, path);
if (*reg == NULL) *reg = ll_load(L, path);
if (*reg == NULL)
return ERRLIB; /* unable to load library */
if (*reg == NULL) *reg = ll_load(L, path, *sym == '*');
if (*reg == NULL) return ERRLIB; /* unable to load library */
if (*sym == '*') { /* loading only library (no function)? */
lua_pushboolean(L, 1); /* return 'true' */
return 0; /* no errors */
}
else {
lua_CFunction f = ll_sym(L, *reg, sym);
if (f == NULL)
return ERRFUNC; /* unable to find function */
lua_pushcfunction(L, f);
return 0; /* return function */
lua_pushcfunction(L, f); /* else create new function */
return 0; /* no errors */
}
}
@ -339,104 +331,137 @@ static int readable (const char *filename) {
static const char *pushnexttemplate (lua_State *L, const char *path) {
const char *l;
while (*path == *LUA_PATHSEP) path++; /* skip separators */
while (*path == *LUA_PATH_SEP) path++; /* skip separators */
if (*path == '\0') return NULL; /* no more templates */
l = strchr(path, *LUA_PATHSEP); /* find next separator */
l = strchr(path, *LUA_PATH_SEP); /* find next separator */
if (l == NULL) l = path + strlen(path);
lua_pushlstring(L, path, l - path); /* template */
return l;
}
static const char *findfile (lua_State *L, const char *name,
const char *pname) {
const char *path;
name = luaL_gsub(L, name, ".", LUA_DIRSEP);
lua_getfield(L, LUA_ENVIRONINDEX, pname);
path = lua_tostring(L, -1);
if (path == NULL)
luaL_error(L, LUA_QL("package.%s") " must be a string", pname);
lua_pushliteral(L, ""); /* error accumulator */
static const char *searchpath (lua_State *L, const char *name,
const char *path,
const char *sep,
const char *dirsep) {
luaL_Buffer msg; /* to build error message */
luaL_buffinit(L, &msg);
if (*sep != '\0') /* non-empty separator? */
name = luaL_gsub(L, name, sep, dirsep); /* replace it by 'dirsep' */
while ((path = pushnexttemplate(L, path)) != NULL) {
const char *filename;
filename = luaL_gsub(L, lua_tostring(L, -1), LUA_PATH_MARK, name);
const char *filename = luaL_gsub(L, lua_tostring(L, -1),
LUA_PATH_MARK, name);
lua_remove(L, -2); /* remove path template */
if (readable(filename)) /* does file exist and is readable? */
return filename; /* return that file name */
lua_pushfstring(L, "\n\tno file " LUA_QS, filename);
lua_remove(L, -2); /* remove file name */
lua_concat(L, 2); /* add entry to possible error message */
luaL_addvalue(&msg); /* concatenate error msg. entry */
}
luaL_pushresult(&msg); /* create error message */
return NULL; /* not found */
}
static void loaderror (lua_State *L, const char *filename) {
luaL_error(L, "error loading module " LUA_QS " from file " LUA_QS ":\n\t%s",
static int ll_searchpath (lua_State *L) {
const char *f = searchpath(L, luaL_checkstring(L, 1),
luaL_checkstring(L, 2),
luaL_optstring(L, 3, "."),
luaL_optstring(L, 4, LUA_DIRSEP));
if (f != NULL) return 1;
else { /* error message is on top of the stack */
lua_pushnil(L);
lua_insert(L, -2);
return 2; /* return nil + error message */
}
}
static const char *findfile (lua_State *L, const char *name,
const char *pname,
const char *dirsep) {
const char *path;
lua_getfield(L, lua_upvalueindex(1), pname);
path = lua_tostring(L, -1);
if (path == NULL)
luaL_error(L, LUA_QL("package.%s") " must be a string", pname);
return searchpath(L, name, path, ".", dirsep);
}
static int checkload (lua_State *L, int stat, const char *filename) {
if (stat) { /* module loaded successfully? */
lua_pushstring(L, filename); /* will be 2nd argument to module */
return 2; /* return open function and file name */
}
else
return luaL_error(L, "error loading module " LUA_QS
" from file " LUA_QS ":\n\t%s",
lua_tostring(L, 1), filename, lua_tostring(L, -1));
}
static int loader_Lua (lua_State *L) {
static int searcher_Lua (lua_State *L) {
const char *filename;
const char *name = luaL_checkstring(L, 1);
filename = findfile(L, name, "path");
if (filename == NULL) return 1; /* library not found in this path */
if (luaL_loadfile(L, filename) != 0)
loaderror(L, filename);
return 1; /* library loaded successfully */
filename = findfile(L, name, "path", LUA_LSUBSEP);
if (filename == NULL) return 1; /* module not found in this path */
return checkload(L, (luaL_loadfile(L, filename) == LUA_OK), filename);
}
static const char *mkfuncname (lua_State *L, const char *modname) {
static int loadfunc (lua_State *L, const char *filename, const char *modname) {
const char *funcname;
const char *mark = strchr(modname, *LUA_IGMARK);
if (mark) modname = mark + 1;
funcname = luaL_gsub(L, modname, ".", LUA_OFSEP);
const char *mark;
modname = luaL_gsub(L, modname, ".", LUA_OFSEP);
mark = strchr(modname, *LUA_IGMARK);
if (mark) {
int stat;
funcname = lua_pushlstring(L, modname, mark - modname);
funcname = lua_pushfstring(L, POF"%s", funcname);
lua_remove(L, -2); /* remove 'gsub' result */
return funcname;
stat = ll_loadfunc(L, filename, funcname);
if (stat != ERRFUNC) return stat;
modname = mark + 1; /* else go ahead and try old-style name */
}
funcname = lua_pushfstring(L, POF"%s", modname);
return ll_loadfunc(L, filename, funcname);
}
static int loader_C (lua_State *L) {
const char *funcname;
static int searcher_C (lua_State *L) {
const char *name = luaL_checkstring(L, 1);
const char *filename = findfile(L, name, "cpath");
if (filename == NULL) return 1; /* library not found in this path */
funcname = mkfuncname(L, name);
if (ll_loadfunc(L, filename, funcname) != 0)
loaderror(L, filename);
return 1; /* library loaded successfully */
const char *filename = findfile(L, name, "cpath", LUA_CSUBSEP);
if (filename == NULL) return 1; /* module not found in this path */
return checkload(L, (loadfunc(L, filename, name) == 0), filename);
}
static int loader_Croot (lua_State *L) {
const char *funcname;
static int searcher_Croot (lua_State *L) {
const char *filename;
const char *name = luaL_checkstring(L, 1);
const char *p = strchr(name, '.');
int stat;
if (p == NULL) return 0; /* is root */
lua_pushlstring(L, name, p - name);
filename = findfile(L, lua_tostring(L, -1), "cpath");
filename = findfile(L, lua_tostring(L, -1), "cpath", LUA_CSUBSEP);
if (filename == NULL) return 1; /* root not found */
funcname = mkfuncname(L, name);
if ((stat = ll_loadfunc(L, filename, funcname)) != 0) {
if (stat != ERRFUNC) loaderror(L, filename); /* real error */
if ((stat = loadfunc(L, filename, name)) != 0) {
if (stat != ERRFUNC)
return checkload(L, 0, filename); /* real error */
else { /* open function not found */
lua_pushfstring(L, "\n\tno module " LUA_QS " in file " LUA_QS,
name, filename);
return 1; /* function not found */
}
return 1;
}
}
lua_pushstring(L, filename); /* will be 2nd argument to module */
return 2;
}
static int loader_preload (lua_State *L) {
static int searcher_preload (lua_State *L) {
const char *name = luaL_checkstring(L, 1);
lua_getfield(L, LUA_ENVIRONINDEX, "preload");
if (!lua_istable(L, -1))
luaL_error(L, LUA_QL("package.preload") " must be a table");
lua_getfield(L, LUA_REGISTRYINDEX, "_PRELOAD");
lua_getfield(L, -1, name);
if (lua_isnil(L, -1)) /* not found? */
lua_pushfstring(L, "\n\tno field package.preload['%s']", name);
@ -444,48 +469,53 @@ static int loader_preload (lua_State *L) {
}
static const int sentinel_ = 0;
#define sentinel ((void *)&sentinel_)
static void findloader (lua_State *L, const char *name) {
int i;
luaL_Buffer msg; /* to build error message */
luaL_buffinit(L, &msg);
lua_getfield(L, lua_upvalueindex(1), "searchers"); /* will be at index 3 */
if (!lua_istable(L, 3))
luaL_error(L, LUA_QL("package.searchers") " must be a table");
/* iterate over available seachers to find a loader */
for (i = 1; ; i++) {
lua_rawgeti(L, 3, i); /* get a seacher */
if (lua_isnil(L, -1)) { /* no more searchers? */
lua_pop(L, 1); /* remove nil */
luaL_pushresult(&msg); /* create error message */
luaL_error(L, "module " LUA_QS " not found:%s",
name, lua_tostring(L, -1));
}
lua_pushstring(L, name);
lua_call(L, 1, 2); /* call it */
if (lua_isfunction(L, -2)) /* did it find a loader? */
return; /* module loader found */
else if (lua_isstring(L, -2)) { /* searcher returned error message? */
lua_pop(L, 1); /* remove extra return */
luaL_addvalue(&msg); /* concatenate error message */
}
else
lua_pop(L, 2); /* remove both returns */
}
}
static int ll_require (lua_State *L) {
const char *name = luaL_checkstring(L, 1);
int i;
lua_settop(L, 1); /* _LOADED table will be at index 2 */
lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
lua_getfield(L, 2, name);
if (lua_toboolean(L, -1)) { /* is it there? */
if (lua_touserdata(L, -1) == sentinel) /* check loops */
luaL_error(L, "loop or previous error loading module " LUA_QS, name);
lua_getfield(L, 2, name); /* _LOADED[name] */
if (lua_toboolean(L, -1)) /* is it there? */
return 1; /* package is already loaded */
}
/* else must load it; iterate over available loaders */
lua_getfield(L, LUA_ENVIRONINDEX, "loaders");
if (!lua_istable(L, -1))
luaL_error(L, LUA_QL("package.loaders") " must be a table");
lua_pushliteral(L, ""); /* error message accumulator */
for (i=1; ; i++) {
lua_rawgeti(L, -2, i); /* get a loader */
if (lua_isnil(L, -1))
luaL_error(L, "module " LUA_QS " not found:%s",
name, lua_tostring(L, -2));
lua_pushstring(L, name);
lua_call(L, 1, 1); /* call it */
if (lua_isfunction(L, -1)) /* did it find module? */
break; /* module loaded successfully */
else if (lua_isstring(L, -1)) /* loader returned error message? */
lua_concat(L, 2); /* accumulate it */
else
lua_pop(L, 1);
}
lua_pushlightuserdata(L, sentinel);
lua_setfield(L, 2, name); /* _LOADED[name] = sentinel */
lua_pushstring(L, name); /* pass name as argument to module */
lua_call(L, 1, 1); /* run loaded module */
/* else must load package */
lua_pop(L, 1); /* remove 'getfield' result */
findloader(L, name);
lua_pushstring(L, name); /* pass name as argument to module loader */
lua_insert(L, -2); /* name is 1st argument (before search data) */
lua_call(L, 2, 1); /* run loader to load module */
if (!lua_isnil(L, -1)) /* non-nil return? */
lua_setfield(L, 2, name); /* _LOADED[name] = returned value */
lua_getfield(L, 2, name);
if (lua_touserdata(L, -1) == sentinel) { /* module did not set a value? */
if (lua_isnil(L, -1)) { /* module did not set a value? */
lua_pushboolean(L, 1); /* use true as result */
lua_pushvalue(L, -1); /* extra copy to be returned */
lua_setfield(L, 2, name); /* _LOADED[name] = true */
@ -502,28 +532,33 @@ static int ll_require (lua_State *L) {
** 'module' function
** =======================================================
*/
#if defined(LUA_COMPAT_MODULE)
static void setfenv (lua_State *L) {
/*
** changes the environment variable of calling function
*/
static void set_env (lua_State *L) {
lua_Debug ar;
if (lua_getstack(L, 1, &ar) == 0 ||
lua_getinfo(L, "f", &ar) == 0 || /* get calling function */
lua_iscfunction(L, -1))
luaL_error(L, LUA_QL("module") " not called from a Lua function");
lua_pushvalue(L, -2);
lua_setfenv(L, -2);
lua_pop(L, 1);
lua_pushvalue(L, -2); /* copy new environment table to top */
lua_setupvalue(L, -2, 1);
lua_pop(L, 1); /* remove function */
}
static void dooptions (lua_State *L, int n) {
int i;
for (i = 2; i <= n; i++) {
if (lua_isfunction(L, i)) { /* avoid 'calling' extra info. */
lua_pushvalue(L, i); /* get option (a function) */
lua_pushvalue(L, -2); /* module */
lua_call(L, 1, 0);
}
}
}
static void modinit (lua_State *L, const char *modname) {
@ -543,17 +578,8 @@ static void modinit (lua_State *L, const char *modname) {
static int ll_module (lua_State *L) {
const char *modname = luaL_checkstring(L, 1);
int loaded = lua_gettop(L) + 1; /* index of _LOADED table */
lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
lua_getfield(L, loaded, modname); /* get _LOADED[modname] */
if (!lua_istable(L, -1)) { /* not found? */
lua_pop(L, 1); /* remove previous result */
/* try global variable (and create one if it does not exist) */
if (luaL_findtable(L, LUA_GLOBALSINDEX, modname, 1) != NULL)
return luaL_error(L, "name conflict for module " LUA_QS, modname);
lua_pushvalue(L, -1);
lua_setfield(L, loaded, modname); /* _LOADED[modname] = new table */
}
int lastarg = lua_gettop(L); /* last parameter */
luaL_pushmodule(L, modname, 1); /* get/create module table */
/* check whether table already has a _NAME field */
lua_getfield(L, -1, "_NAME");
if (!lua_isnil(L, -1)) /* is table an initialized module? */
@ -563,9 +589,9 @@ static int ll_module (lua_State *L) {
modinit(L, modname);
}
lua_pushvalue(L, -1);
setfenv(L);
dooptions(L, loaded - 1);
return 0;
set_env(L);
dooptions(L, lastarg);
return 1;
}
@ -576,12 +602,12 @@ static int ll_seeall (lua_State *L) {
lua_pushvalue(L, -1);
lua_setmetatable(L, 1);
}
lua_pushvalue(L, LUA_GLOBALSINDEX);
lua_pushglobaltable(L);
lua_setfield(L, -2, "__index"); /* mt.__index = _G */
return 0;
}
#endif
/* }====================================================== */
@ -589,15 +615,30 @@ static int ll_seeall (lua_State *L) {
/* auxiliary mark (for internal use) */
#define AUXMARK "\1"
static void setpath (lua_State *L, const char *fieldname, const char *envname,
const char *def) {
const char *path = getenv(envname);
/*
** return registry.LUA_NOENV as a boolean
*/
static int noenv (lua_State *L) {
int b;
lua_getfield(L, LUA_REGISTRYINDEX, "LUA_NOENV");
b = lua_toboolean(L, -1);
lua_pop(L, 1); /* remove value */
return b;
}
static void setpath (lua_State *L, const char *fieldname, const char *envname1,
const char *envname2, const char *def) {
const char *path = getenv(envname1);
if (path == NULL) /* no environment variable? */
path = getenv(envname2); /* try alternative name */
if (path == NULL || noenv(L)) /* no environment variable? */
lua_pushstring(L, def); /* use default */
else {
/* replace ";;" by ";AUXMARK;" and then AUXMARK by default path */
path = luaL_gsub(L, path, LUA_PATHSEP LUA_PATHSEP,
LUA_PATHSEP AUXMARK LUA_PATHSEP);
path = luaL_gsub(L, path, LUA_PATH_SEP LUA_PATH_SEP,
LUA_PATH_SEP AUXMARK LUA_PATH_SEP);
luaL_gsub(L, path, AUXMARK, def);
lua_remove(L, -2);
}
@ -608,59 +649,66 @@ static void setpath (lua_State *L, const char *fieldname, const char *envname,
static const luaL_Reg pk_funcs[] = {
{"loadlib", ll_loadlib},
{"searchpath", ll_searchpath},
#if defined(LUA_COMPAT_MODULE)
{"seeall", ll_seeall},
#endif
{NULL, NULL}
};
static const luaL_Reg ll_funcs[] = {
#if defined(LUA_COMPAT_MODULE)
{"module", ll_module},
#endif
{"require", ll_require},
{NULL, NULL}
};
static const lua_CFunction loaders[] =
{loader_preload, loader_Lua, loader_C, loader_Croot, NULL};
static const lua_CFunction searchers[] =
{searcher_preload, searcher_Lua, searcher_C, searcher_Croot, NULL};
LUALIB_API int luaopen_package (lua_State *L) {
LUAMOD_API int luaopen_package (lua_State *L) {
int i;
/* create new type _LOADLIB */
luaL_newmetatable(L, "_LOADLIB");
lua_pushcfunction(L, gctm);
lua_setfield(L, -2, "__gc");
/* create `package' table */
luaL_register(L, LUA_LOADLIBNAME, pk_funcs);
#if defined(LUA_COMPAT_LOADLIB)
lua_getfield(L, -1, "loadlib");
lua_setfield(L, LUA_GLOBALSINDEX, "loadlib");
#endif
lua_pushvalue(L, -1);
lua_replace(L, LUA_ENVIRONINDEX);
/* create `loaders' table */
lua_createtable(L, 0, sizeof(loaders)/sizeof(loaders[0]) - 1);
/* fill it with pre-defined loaders */
for (i=0; loaders[i] != NULL; i++) {
lua_pushcfunction(L, loaders[i]);
luaL_newlib(L, pk_funcs);
/* create 'searchers' table */
lua_createtable(L, sizeof(searchers)/sizeof(searchers[0]) - 1, 0);
/* fill it with pre-defined searchers */
for (i=0; searchers[i] != NULL; i++) {
lua_pushvalue(L, -2); /* set 'package' as upvalue for all searchers */
lua_pushcclosure(L, searchers[i], 1);
lua_rawseti(L, -2, i+1);
}
lua_setfield(L, -2, "loaders"); /* put it in field `loaders' */
setpath(L, "path", LUA_PATH, LUA_PATH_DEFAULT); /* set field `path' */
setpath(L, "cpath", LUA_CPATH, LUA_CPATH_DEFAULT); /* set field `cpath' */
#if defined(LUA_COMPAT_LOADERS)
lua_pushvalue(L, -1); /* make a copy of 'searchers' table */
lua_setfield(L, -3, "loaders"); /* put it in field `loaders' */
#endif
lua_setfield(L, -2, "searchers"); /* put it in field 'searchers' */
/* set field 'path' */
setpath(L, "path", LUA_PATHVERSION, LUA_PATH, LUA_PATH_DEFAULT);
/* set field 'cpath' */
setpath(L, "cpath", LUA_CPATHVERSION, LUA_CPATH, LUA_CPATH_DEFAULT);
/* store config information */
lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATHSEP "\n" LUA_PATH_MARK "\n"
LUA_EXECDIR "\n" LUA_IGMARK);
lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATH_SEP "\n" LUA_PATH_MARK "\n"
LUA_EXEC_DIR "\n" LUA_IGMARK "\n");
lua_setfield(L, -2, "config");
/* set field `loaded' */
luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 2);
luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED");
lua_setfield(L, -2, "loaded");
/* set field `preload' */
lua_newtable(L);
luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD");
lua_setfield(L, -2, "preload");
lua_pushvalue(L, LUA_GLOBALSINDEX);
luaL_register(L, NULL, ll_funcs); /* open lib into global table */
lua_pop(L, 1);
lua_pushglobaltable(L);
lua_pushvalue(L, -2); /* set 'package' as upvalue for next lib */
luaL_setfuncs(L, ll_funcs, 1); /* open lib into global table */
lua_pop(L, 1); /* pop global table */
return 1; /* return 'package' table */
}

237
depends/lua/src/lobject.c
Unescape Escape View File

@ -1,10 +1,9 @@
/*
** $Id: lobject.c,v 2.22.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lobject.c,v 2.55 2011/11/30 19:30:16 roberto Exp $
** Some generic functions over Lua objects
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
@ -15,6 +14,8 @@
#include "lua.h"
#include "lctype.h"
#include "ldebug.h"
#include "ldo.h"
#include "lmem.h"
#include "lobject.h"
@ -24,7 +25,7 @@
const TValue luaO_nilobject_ = {{NULL}, LUA_TNIL};
LUAI_DDEF const TValue luaO_nilobject_ = {NILCONSTANT};
/*
@ -33,25 +34,25 @@ const TValue luaO_nilobject_ = {{NULL}, LUA_TNIL};
** eeeee != 0 and (xxx) otherwise.
*/
int luaO_int2fb (unsigned int x) {
int e = 0; /* expoent */
while (x >= 16) {
int e = 0; /* exponent */
if (x < 8) return x;
while (x >= 0x10) {
x = (x+1) >> 1;
e++;
}
if (x < 8) return x;
else return ((e+1) << 3) | (cast_int(x) - 8);
return ((e+1) << 3) | (cast_int(x) - 8);
}
/* converts back */
int luaO_fb2int (int x) {
int e = (x >> 3) & 31;
int e = (x >> 3) & 0x1f;
if (e == 0) return x;
else return ((x & 7) + 8) << (e - 1);
}
int luaO_log2 (unsigned int x) {
int luaO_ceillog2 (unsigned int x) {
static const lu_byte log_2[256] = {
0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
@ -62,55 +63,122 @@ int luaO_log2 (unsigned int x) {
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
};
int l = -1;
int l = 0;
x--;
while (x >= 256) { l += 8; x >>= 8; }
return l + log_2[x];
}
lua_Number luaO_arith (int op, lua_Number v1, lua_Number v2) {
switch (op) {
case LUA_OPADD: return luai_numadd(NULL, v1, v2);
case LUA_OPSUB: return luai_numsub(NULL, v1, v2);
case LUA_OPMUL: return luai_nummul(NULL, v1, v2);
case LUA_OPDIV: return luai_numdiv(NULL, v1, v2);
case LUA_OPMOD: return luai_nummod(NULL, v1, v2);
case LUA_OPPOW: return luai_numpow(NULL, v1, v2);
case LUA_OPUNM: return luai_numunm(NULL, v1);
default: lua_assert(0); return 0;
}
}
int luaO_rawequalObj (const TValue *t1, const TValue *t2) {
if (ttype(t1) != ttype(t2)) return 0;
else switch (ttype(t1)) {
case LUA_TNIL:
return 1;
case LUA_TNUMBER:
return luai_numeq(nvalue(t1), nvalue(t2));
case LUA_TBOOLEAN:
return bvalue(t1) == bvalue(t2); /* boolean true must be 1 !! */
case LUA_TLIGHTUSERDATA:
return pvalue(t1) == pvalue(t2);
default:
lua_assert(iscollectable(t1));
return gcvalue(t1) == gcvalue(t2);
int luaO_hexavalue (int c) {
if (lisdigit(c)) return c - '0';
else return ltolower(c) - 'a' + 10;
}
#if !defined(lua_strx2number)
#include <math.h>
static int isneg (const char **s) {
if (**s == '-') { (*s)++; return 1; }
else if (**s == '+') (*s)++;
return 0;
}
static lua_Number readhexa (const char **s, lua_Number r, int *count) {
for (; lisxdigit(cast_uchar(**s)); (*s)++) { /* read integer part */
r = (r * 16.0) + cast_num(luaO_hexavalue(cast_uchar(**s)));
(*count)++;
}
return r;
}
int luaO_str2d (const char *s, lua_Number *result) {
/*
** convert an hexadecimal numeric string to a number, following
** C99 specification for 'strtod'
*/
static lua_Number lua_strx2number (const char *s, char **endptr) {
lua_Number r = 0.0;
int e = 0, i = 0;
int neg = 0; /* 1 if number is negative */
*endptr = cast(char *, s); /* nothing is valid yet */
while (lisspace(cast_uchar(*s))) s++; /* skip initial spaces */
neg = isneg(&s); /* check signal */
if (!(*s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X'))) /* check '0x' */
return 0.0; /* invalid format (no '0x') */
s += 2; /* skip '0x' */
r = readhexa(&s, r, &i); /* read integer part */
if (*s == '.') {
s++; /* skip dot */
r = readhexa(&s, r, &e); /* read fractional part */
}
if (i == 0 && e == 0)
return 0.0; /* invalid format (no digit) */
e *= -4; /* each fractional digit divides value by 2^-4 */
*endptr = cast(char *, s); /* valid up to here */
if (*s == 'p' || *s == 'P') { /* exponent part? */
int exp1 = 0;
int neg1;
s++; /* skip 'p' */
neg1 = isneg(&s); /* signal */
if (!lisdigit(cast_uchar(*s)))
goto ret; /* must have at least one digit */
while (lisdigit(cast_uchar(*s))) /* read exponent */
exp1 = exp1 * 10 + *(s++) - '0';
if (neg1) exp1 = -exp1;
e += exp1;
}
*endptr = cast(char *, s); /* valid up to here */
ret:
if (neg) r = -r;
return ldexp(r, e);
}
#endif
int luaO_str2d (const char *s, size_t len, lua_Number *result) {
char *endptr;
if (strpbrk(s, "nN")) /* reject 'inf' and 'nan' */
return 0;
else if (strpbrk(s, "xX")) /* hexa? */
*result = lua_strx2number(s, &endptr);
else
*result = lua_str2number(s, &endptr);
if (endptr == s) return 0; /* conversion failed */
if (*endptr == 'x' || *endptr == 'X') /* maybe an hexadecimal constant? */
*result = cast_num(strtoul(s, &endptr, 16));
if (*endptr == '\0') return 1; /* most common case */
while (isspace(cast(unsigned char, *endptr))) endptr++;
if (*endptr != '\0') return 0; /* invalid trailing characters? */
return 1;
if (endptr == s) return 0; /* nothing recognized */
while (lisspace(cast_uchar(*endptr))) endptr++;
return (endptr == s + len); /* OK if no trailing characters */
}
static void pushstr (lua_State *L, const char *str) {
setsvalue2s(L, L->top, luaS_new(L, str));
static void pushstr (lua_State *L, const char *str, size_t l) {
setsvalue2s(L, L->top, luaS_newlstr(L, str, l));
incr_top(L);
}
/* this function handles only `%d', `%c', %f, %p, and `%s' formats */
const char *luaO_pushvfstring (lua_State *L, const char *fmt, va_list argp) {
int n = 1;
pushstr(L, "");
int n = 0;
for (;;) {
const char *e = strchr(fmt, '%');
if (e == NULL) break;
@ -120,14 +188,13 @@ const char *luaO_pushvfstring (lua_State *L, const char *fmt, va_list argp) {
case 's': {
const char *s = va_arg(argp, char *);
if (s == NULL) s = "(null)";
pushstr(L, s);
pushstr(L, s, strlen(s));
break;
}
case 'c': {
char buff[2];
buff[0] = cast(char, va_arg(argp, int));
buff[1] = '\0';
pushstr(L, buff);
char buff;
buff = cast(char, va_arg(argp, int));
pushstr(L, &buff, 1);
break;
}
case 'd': {
@ -142,29 +209,25 @@ const char *luaO_pushvfstring (lua_State *L, const char *fmt, va_list argp) {
}
case 'p': {
char buff[4*sizeof(void *) + 8]; /* should be enough space for a `%p' */
sprintf(buff, "%p", va_arg(argp, void *));
pushstr(L, buff);
int l = sprintf(buff, "%p", va_arg(argp, void *));
pushstr(L, buff, l);
break;
}
case '%': {
pushstr(L, "%");
pushstr(L, "%", 1);
break;
}
default: {
char buff[3];
buff[0] = '%';
buff[1] = *(e+1);
buff[2] = '\0';
pushstr(L, buff);
break;
luaG_runerror(L,
"invalid option " LUA_QL("%%%c") " to " LUA_QL("lua_pushfstring"),
*(e + 1));
}
}
n += 2;
fmt = e+2;
}
pushstr(L, fmt);
luaV_concat(L, n+1, cast_int(L->top - L->base) - 1);
L->top -= n;
pushstr(L, fmt, strlen(fmt));
if (n > 0) luaV_concat(L, n + 1);
return svalue(L->top - 1);
}
@ -179,36 +242,48 @@ const char *luaO_pushfstring (lua_State *L, const char *fmt, ...) {
}
/* number of chars of a literal string without the ending \0 */
#define LL(x) (sizeof(x)/sizeof(char) - 1)
#define RETS "..."
#define PRE "[string \""
#define POS "\"]"
#define addstr(a,b,l) ( memcpy(a,b,(l) * sizeof(char)), a += (l) )
void luaO_chunkid (char *out, const char *source, size_t bufflen) {
if (*source == '=') {
strncpy(out, source+1, bufflen); /* remove first char */
out[bufflen-1] = '\0'; /* ensures null termination */
}
else { /* out = "source", or "...source" */
if (*source == '@') {
size_t l;
source++; /* skip the `@' */
bufflen -= sizeof(" '...' ");
l = strlen(source);
strcpy(out, "");
if (l > bufflen) {
source += (l-bufflen); /* get last part of file name */
strcat(out, "...");
}
strcat(out, source);
}
else { /* out = [string "string"] */
size_t len = strcspn(source, "\n\r"); /* stop at first newline */
bufflen -= sizeof(" [string \"...\"] ");
if (len > bufflen) len = bufflen;
strcpy(out, "[string \"");
if (source[len] != '\0') { /* must truncate? */
strncat(out, source, len);
strcat(out, "...");
size_t l = strlen(source);
if (*source == '=') { /* 'literal' source */
if (l <= bufflen) /* small enough? */
memcpy(out, source + 1, l * sizeof(char));
else { /* truncate it */
addstr(out, source + 1, bufflen - 1);
*out = '\0';
}
else
strcat(out, source);
strcat(out, "\"]");
}
else if (*source == '@') { /* file name */
if (l <= bufflen) /* small enough? */
memcpy(out, source + 1, l * sizeof(char));
else { /* add '...' before rest of name */
addstr(out, RETS, LL(RETS));
bufflen -= LL(RETS);
memcpy(out, source + 1 + l - bufflen, bufflen * sizeof(char));
}
}
else { /* string; format as [string "source"] */
const char *nl = strchr(source, '\n'); /* find first new line (if any) */
addstr(out, PRE, LL(PRE)); /* add prefix */
bufflen -= LL(PRE RETS POS) + 1; /* save space for prefix+suffix+'\0' */
if (l < bufflen && nl == NULL) { /* small one-line source? */
addstr(out, source, l); /* keep it */
}
else {
if (nl != NULL) l = nl - source; /* stop at first newline */
if (l > bufflen) l = bufflen;
addstr(out, source, l);
addstr(out, RETS, LL(RETS));
}
memcpy(out, POS, (LL(POS) + 1) * sizeof(char));
}
}

28
depends/lua/src/lopcodes.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lopcodes.c,v 1.37.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lopcodes.c,v 1.48 2011/04/19 16:22:13 roberto Exp $
** See Copyright Notice in lua.h
*/
@ -13,15 +13,16 @@
/* ORDER OP */
const char *const luaP_opnames[NUM_OPCODES+1] = {
LUAI_DDEF const char *const luaP_opnames[NUM_OPCODES+1] = {
"MOVE",
"LOADK",
"LOADKX",
"LOADBOOL",
"LOADNIL",
"GETUPVAL",
"GETGLOBAL",
"GETTABUP",
"GETTABLE",
"SETGLOBAL",
"SETTABUP",
"SETUPVAL",
"SETTABLE",
"NEWTABLE",
@ -47,27 +48,29 @@ const char *const luaP_opnames[NUM_OPCODES+1] = {
"RETURN",
"FORLOOP",
"FORPREP",
"TFORCALL",
"TFORLOOP",
"SETLIST",
"CLOSE",
"CLOSURE",
"VARARG",
"EXTRAARG",
NULL
};
#define opmode(t,a,b,c,m) (((t)<<7) | ((a)<<6) | ((b)<<4) | ((c)<<2) | (m))
const lu_byte luaP_opmodes[NUM_OPCODES] = {
LUAI_DDEF const lu_byte luaP_opmodes[NUM_OPCODES] = {
/* T A B C mode opcode */
opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_MOVE */
,opmode(0, 1, OpArgK, OpArgN, iABx) /* OP_LOADK */
,opmode(0, 1, OpArgN, OpArgN, iABx) /* OP_LOADKX */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_LOADBOOL */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_LOADNIL */
,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_LOADNIL */
,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_GETUPVAL */
,opmode(0, 1, OpArgK, OpArgN, iABx) /* OP_GETGLOBAL */
,opmode(0, 1, OpArgU, OpArgK, iABC) /* OP_GETTABUP */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_GETTABLE */
,opmode(0, 0, OpArgK, OpArgN, iABx) /* OP_SETGLOBAL */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_SETTABUP */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_SETUPVAL */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_SETTABLE */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_NEWTABLE */
@ -86,17 +89,18 @@ const lu_byte luaP_opmodes[NUM_OPCODES] = {
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_EQ */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LT */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LE */
,opmode(1, 1, OpArgR, OpArgU, iABC) /* OP_TEST */
,opmode(1, 0, OpArgN, OpArgU, iABC) /* OP_TEST */
,opmode(1, 1, OpArgR, OpArgU, iABC) /* OP_TESTSET */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_CALL */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_TAILCALL */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_RETURN */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_FORLOOP */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_FORPREP */
,opmode(1, 0, OpArgN, OpArgU, iABC) /* OP_TFORLOOP */
,opmode(0, 0, OpArgN, OpArgU, iABC) /* OP_TFORCALL */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_TFORLOOP */
,opmode(0, 0, OpArgU, OpArgU, iABC) /* OP_SETLIST */
,opmode(0, 0, OpArgN, OpArgN, iABC) /* OP_CLOSE */
,opmode(0, 1, OpArgU, OpArgN, iABx) /* OP_CLOSURE */
,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_VARARG */
,opmode(0, 0, OpArgU, OpArgU, iAx) /* OP_EXTRAARG */
};

145
depends/lua/src/loslib.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: loslib.c,v 1.19.1.3 2008/01/18 16:38:18 roberto Exp $
** $Id: loslib.c,v 1.38 2011/11/30 12:35:05 roberto Exp $
** Standard Operating System library
** See Copyright Notice in lua.h
*/
@ -20,37 +20,84 @@
#include "lualib.h"
static int os_pushresult (lua_State *L, int i, const char *filename) {
int en = errno; /* calls to Lua API may change this value */
if (i) {
lua_pushboolean(L, 1);
return 1;
}
else {
lua_pushnil(L);
lua_pushfstring(L, "%s: %s", filename, strerror(en));
lua_pushinteger(L, en);
return 3;
}
}
/*
** list of valid conversion specifiers for the 'strftime' function
*/
#if !defined(LUA_STRFTIMEOPTIONS)
#if !defined(LUA_USE_POSIX)
#define LUA_STRFTIMEOPTIONS { "aAbBcdHIjmMpSUwWxXyYz%", "" }
#else
#define LUA_STRFTIMEOPTIONS { "aAbBcCdDeFgGhHIjmMnprRStTuUVwWxXyYzZ%", "", \
"E", "cCxXyY", \
"O", "deHImMSuUVwWy" }
#endif
#endif
/*
** By default, Lua uses tmpnam except when POSIX is available, where it
** uses mkstemp.
*/
#if defined(LUA_USE_MKSTEMP)
#include <unistd.h>
#define LUA_TMPNAMBUFSIZE 32
#define lua_tmpnam(b,e) { \
strcpy(b, "/tmp/lua_XXXXXX"); \
e = mkstemp(b); \
if (e != -1) close(e); \
e = (e == -1); }
#elif !defined(lua_tmpnam)
#define LUA_TMPNAMBUFSIZE L_tmpnam
#define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); }
#endif
/*
** By default, Lua uses gmtime/localtime, except when POSIX is available,
** where it uses gmtime_r/localtime_r
*/
#if defined(LUA_USE_GMTIME_R)
#define l_gmtime(t,r) gmtime_r(t,r)
#define l_localtime(t,r) localtime_r(t,r)
#elif !defined(l_gmtime)
#define l_gmtime(t,r) ((void)r, gmtime(t))
#define l_localtime(t,r) ((void)r, localtime(t))
#endif
static int os_execute (lua_State *L) {
lua_pushinteger(L, system(luaL_optstring(L, 1, NULL)));
const char *cmd = luaL_optstring(L, 1, NULL);
int stat = system(cmd);
if (cmd != NULL)
return luaL_execresult(L, stat);
else {
lua_pushboolean(L, stat); /* true if there is a shell */
return 1;
}
}
static int os_remove (lua_State *L) {
const char *filename = luaL_checkstring(L, 1);
return os_pushresult(L, remove(filename) == 0, filename);
return luaL_fileresult(L, remove(filename) == 0, filename);
}
static int os_rename (lua_State *L) {
const char *fromname = luaL_checkstring(L, 1);
const char *toname = luaL_checkstring(L, 2);
return os_pushresult(L, rename(fromname, toname) == 0, fromname);
return luaL_fileresult(L, rename(fromname, toname) == 0, fromname);
}
@ -107,11 +154,10 @@ static int getboolfield (lua_State *L, const char *key) {
static int getfield (lua_State *L, const char *key, int d) {
int res;
int res, isnum;
lua_getfield(L, -1, key);
if (lua_isnumber(L, -1))
res = (int)lua_tointeger(L, -1);
else {
res = (int)lua_tointegerx(L, -1, &isnum);
if (!isnum) {
if (d < 0)
return luaL_error(L, "field " LUA_QS " missing in date table", key);
res = d;
@ -121,16 +167,40 @@ static int getfield (lua_State *L, const char *key, int d) {
}
static const char *checkoption (lua_State *L, const char *conv, char *buff) {
static const char *const options[] = LUA_STRFTIMEOPTIONS;
unsigned int i;
for (i = 0; i < sizeof(options)/sizeof(options[0]); i += 2) {
if (*conv != '\0' && strchr(options[i], *conv) != NULL) {
buff[1] = *conv;
if (*options[i + 1] == '\0') { /* one-char conversion specifier? */
buff[2] = '\0'; /* end buffer */
return conv + 1;
}
else if (*(conv + 1) != '\0' &&
strchr(options[i + 1], *(conv + 1)) != NULL) {
buff[2] = *(conv + 1); /* valid two-char conversion specifier */
buff[3] = '\0'; /* end buffer */
return conv + 2;
}
}
}
luaL_argerror(L, 1,
lua_pushfstring(L, "invalid conversion specifier '%%%s'", conv));
return conv; /* to avoid warnings */
}
static int os_date (lua_State *L) {
const char *s = luaL_optstring(L, 1, "%c");
time_t t = luaL_opt(L, (time_t)luaL_checknumber, 2, time(NULL));
struct tm *stm;
struct tm tmr, *stm;
if (*s == '!') { /* UTC? */
stm = gmtime(&t);
stm = l_gmtime(&t, &tmr);
s++; /* skip `!' */
}
else
stm = localtime(&t);
stm = l_localtime(&t, &tmr);
if (stm == NULL) /* invalid date? */
lua_pushnil(L);
else if (strcmp(s, "*t") == 0) {
@ -146,17 +216,17 @@ static int os_date (lua_State *L) {
setboolfield(L, "isdst", stm->tm_isdst);
}
else {
char cc[3];
char cc[4];
luaL_Buffer b;
cc[0] = '%'; cc[2] = '\0';
cc[0] = '%';
luaL_buffinit(L, &b);
for (; *s; s++) {
if (*s != '%' || *(s + 1) == '\0') /* no conversion specifier? */
luaL_addchar(&b, *s);
while (*s) {
if (*s != '%') /* no conversion specifier? */
luaL_addchar(&b, *s++);
else {
size_t reslen;
char buff[200]; /* should be big enough for any conversion result */
cc[1] = *(++s);
s = checkoption(L, s + 1, cc);
reslen = strftime(buff, sizeof(buff), cc, stm);
luaL_addlstring(&b, buff, reslen);
}
@ -214,9 +284,18 @@ static int os_setlocale (lua_State *L) {
static int os_exit (lua_State *L) {
exit(luaL_optint(L, 1, EXIT_SUCCESS));
int status;
if (lua_isboolean(L, 1))
status = (lua_toboolean(L, 1) ? EXIT_SUCCESS : EXIT_FAILURE);
else
status = luaL_optint(L, 1, EXIT_SUCCESS);
if (lua_toboolean(L, 2))
lua_close(L);
if (L) exit(status); /* 'if' to avoid warnings for unreachable 'return' */
return 0;
}
static const luaL_Reg syslib[] = {
{"clock", os_clock},
{"date", os_date},
@ -236,8 +315,8 @@ static const luaL_Reg syslib[] = {
LUALIB_API int luaopen_os (lua_State *L) {
luaL_register(L, LUA_OSLIBNAME, syslib);
LUAMOD_API int luaopen_os (lua_State *L) {
luaL_newlib(L, syslib);
return 1;
}

949
depends/lua/src/lparser.c
View File

File diff suppressed because it is too large Load Diff

228
depends/lua/src/lstate.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lstate.c,v 2.36.1.2 2008/01/03 15:20:39 roberto Exp $
** $Id: lstate.c,v 2.92 2011/10/03 17:54:25 roberto Exp $
** Global State
** See Copyright Notice in lua.h
*/
@ -12,6 +12,7 @@
#include "lua.h"
#include "lapi.h"
#include "ldebug.h"
#include "ldo.h"
#include "lfunc.h"
@ -24,119 +25,203 @@
#include "ltm.h"
#define state_size(x) (sizeof(x) + LUAI_EXTRASPACE)
#define fromstate(l) (cast(lu_byte *, (l)) - LUAI_EXTRASPACE)
#define tostate(l) (cast(lua_State *, cast(lu_byte *, l) + LUAI_EXTRASPACE))
#if !defined(LUAI_GCPAUSE)
#define LUAI_GCPAUSE 200 /* 200% */
#endif
#if !defined(LUAI_GCMAJOR)
#define LUAI_GCMAJOR 200 /* 200% */
#endif
#if !defined(LUAI_GCMUL)
#define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */
#endif
#define MEMERRMSG "not enough memory"
/*
** thread state + extra space
*/
typedef struct LX {
#if defined(LUAI_EXTRASPACE)
char buff[LUAI_EXTRASPACE];
#endif
lua_State l;
} LX;
/*
** Main thread combines a thread state and the global state
*/
typedef struct LG {
lua_State l;
LX l;
global_State g;
} LG;
#define fromstate(L) (cast(LX *, cast(lu_byte *, (L)) - offsetof(LX, l)))
/*
** set GCdebt to a new value keeping the value (totalbytes + GCdebt)
** invariant
*/
void luaE_setdebt (global_State *g, l_mem debt) {
g->totalbytes -= (debt - g->GCdebt);
g->GCdebt = debt;
}
CallInfo *luaE_extendCI (lua_State *L) {
CallInfo *ci = luaM_new(L, CallInfo);
lua_assert(L->ci->next == NULL);
L->ci->next = ci;
ci->previous = L->ci;
ci->next = NULL;
return ci;
}
void luaE_freeCI (lua_State *L) {
CallInfo *ci = L->ci;
CallInfo *next = ci->next;
ci->next = NULL;
while ((ci = next) != NULL) {
next = ci->next;
luaM_free(L, ci);
}
}
static void stack_init (lua_State *L1, lua_State *L) {
/* initialize CallInfo array */
L1->base_ci = luaM_newvector(L, BASIC_CI_SIZE, CallInfo);
L1->ci = L1->base_ci;
L1->size_ci = BASIC_CI_SIZE;
L1->end_ci = L1->base_ci + L1->size_ci - 1;
int i; CallInfo *ci;
/* initialize stack array */
L1->stack = luaM_newvector(L, BASIC_STACK_SIZE + EXTRA_STACK, TValue);
L1->stacksize = BASIC_STACK_SIZE + EXTRA_STACK;
L1->stack = luaM_newvector(L, BASIC_STACK_SIZE, TValue);
L1->stacksize = BASIC_STACK_SIZE;
for (i = 0; i < BASIC_STACK_SIZE; i++)
setnilvalue(L1->stack + i); /* erase new stack */
L1->top = L1->stack;
L1->stack_last = L1->stack+(L1->stacksize - EXTRA_STACK)-1;
L1->stack_last = L1->stack + L1->stacksize - EXTRA_STACK;
/* initialize first ci */
L1->ci->func = L1->top;
setnilvalue(L1->top++); /* `function' entry for this `ci' */
L1->base = L1->ci->base = L1->top;
L1->ci->top = L1->top + LUA_MINSTACK;
ci = &L1->base_ci;
ci->next = ci->previous = NULL;
ci->callstatus = 0;
ci->func = L1->top;
setnilvalue(L1->top++); /* 'function' entry for this 'ci' */
ci->top = L1->top + LUA_MINSTACK;
L1->ci = ci;
}
static void freestack (lua_State *L) {
if (L->stack == NULL)
return; /* stack not completely built yet */
L->ci = &L->base_ci; /* free the entire 'ci' list */
luaE_freeCI(L);
luaM_freearray(L, L->stack, L->stacksize); /* free stack array */
}
static void freestack (lua_State *L, lua_State *L1) {
luaM_freearray(L, L1->base_ci, L1->size_ci, CallInfo);
luaM_freearray(L, L1->stack, L1->stacksize, TValue);
/*
** Create registry table and its predefined values
*/
static void init_registry (lua_State *L, global_State *g) {
TValue mt;
/* create registry */
Table *registry = luaH_new(L);
sethvalue(L, &g->l_registry, registry);
luaH_resize(L, registry, LUA_RIDX_LAST, 0);
/* registry[LUA_RIDX_MAINTHREAD] = L */
setthvalue(L, &mt, L);
luaH_setint(L, registry, LUA_RIDX_MAINTHREAD, &mt);
/* registry[LUA_RIDX_GLOBALS] = table of globals */
sethvalue(L, &mt, luaH_new(L));
luaH_setint(L, registry, LUA_RIDX_GLOBALS, &mt);
}
/*
** open parts that may cause memory-allocation errors
** open parts of the state that may cause memory-allocation errors
*/
static void f_luaopen (lua_State *L, void *ud) {
global_State *g = G(L);
UNUSED(ud);
stack_init(L, L); /* init stack */
sethvalue(L, gt(L), luaH_new(L, 0, 2)); /* table of globals */
sethvalue(L, registry(L), luaH_new(L, 0, 2)); /* registry */
init_registry(L, g);
luaS_resize(L, MINSTRTABSIZE); /* initial size of string table */
luaT_init(L);
luaX_init(L);
luaS_fix(luaS_newliteral(L, MEMERRMSG));
g->GCthreshold = 4*g->totalbytes;
/* pre-create memory-error message */
g->memerrmsg = luaS_newliteral(L, MEMERRMSG);
luaS_fix(g->memerrmsg); /* it should never be collected */
g->gcrunning = 1; /* allow gc */
}
/*
** preinitialize a state with consistent values without allocating
** any memory (to avoid errors)
*/
static void preinit_state (lua_State *L, global_State *g) {
G(L) = g;
L->stack = NULL;
L->ci = NULL;
L->stacksize = 0;
L->errorJmp = NULL;
L->nCcalls = 0;
L->hook = NULL;
L->hookmask = 0;
L->basehookcount = 0;
L->allowhook = 1;
resethookcount(L);
L->openupval = NULL;
L->size_ci = 0;
L->nCcalls = L->baseCcalls = 0;
L->status = 0;
L->base_ci = L->ci = NULL;
L->savedpc = NULL;
L->nny = 1;
L->status = LUA_OK;
L->errfunc = 0;
setnilvalue(gt(L));
}
static void close_state (lua_State *L) {
global_State *g = G(L);
luaF_close(L, L->stack); /* close all upvalues for this thread */
luaC_freeall(L); /* collect all objects */
lua_assert(g->rootgc == obj2gco(L));
lua_assert(g->strt.nuse == 0);
luaM_freearray(L, G(L)->strt.hash, G(L)->strt.size, TString *);
luaC_freeallobjects(L); /* collect all objects */
luaM_freearray(L, G(L)->strt.hash, G(L)->strt.size);
luaZ_freebuffer(L, &g->buff);
freestack(L, L);
lua_assert(g->totalbytes == sizeof(LG));
(*g->frealloc)(g->ud, fromstate(L), state_size(LG), 0);
freestack(L);
lua_assert(gettotalbytes(g) == sizeof(LG));
(*g->frealloc)(g->ud, fromstate(L), sizeof(LG), 0); /* free main block */
}
lua_State *luaE_newthread (lua_State *L) {
lua_State *L1 = tostate(luaM_malloc(L, state_size(lua_State)));
luaC_link(L, obj2gco(L1), LUA_TTHREAD);
LUA_API lua_State *lua_newthread (lua_State *L) {
lua_State *L1;
lua_lock(L);
luaC_checkGC(L);
L1 = &luaC_newobj(L, LUA_TTHREAD, sizeof(LX), NULL, offsetof(LX, l))->th;
setthvalue(L, L->top, L1);
api_incr_top(L);
preinit_state(L1, G(L));
stack_init(L1, L); /* init stack */
setobj2n(L, gt(L1), gt(L)); /* share table of globals */
L1->hookmask = L->hookmask;
L1->basehookcount = L->basehookcount;
L1->hook = L->hook;
resethookcount(L1);
lua_assert(iswhite(obj2gco(L1)));
luai_userstatethread(L, L1);
stack_init(L1, L); /* init stack */
lua_unlock(L);
return L1;
}
void luaE_freethread (lua_State *L, lua_State *L1) {
LX *l = fromstate(L1);
luaF_close(L1, L1->stack); /* close all upvalues for this thread */
lua_assert(L1->openupval == NULL);
luai_userstatefree(L1);
freestack(L, L1);
luaM_freemem(L, fromstate(L1), state_size(lua_State));
luai_userstatefree(L, L1);
freestack(L1);
luaM_free(L, l);
}
@ -144,42 +229,43 @@ LUA_API lua_State *lua_newstate (lua_Alloc f, void *ud) {
int i;
lua_State *L;
global_State *g;
void *l = (*f)(ud, NULL, 0, state_size(LG));
LG *l = cast(LG *, (*f)(ud, NULL, LUA_TTHREAD, sizeof(LG)));
if (l == NULL) return NULL;
L = tostate(l);
g = &((LG *)L)->g;
L = &l->l.l;
g = &l->g;
L->next = NULL;
L->tt = LUA_TTHREAD;
g->currentwhite = bit2mask(WHITE0BIT, FIXEDBIT);
L->marked = luaC_white(g);
set2bits(L->marked, FIXEDBIT, SFIXEDBIT);
g->gckind = KGC_NORMAL;
preinit_state(L, g);
g->frealloc = f;
g->ud = ud;
g->mainthread = L;
g->uvhead.u.l.prev = &g->uvhead;
g->uvhead.u.l.next = &g->uvhead;
g->GCthreshold = 0; /* mark it as unfinished state */
g->gcrunning = 0; /* no GC while building state */
g->lastmajormem = 0;
g->strt.size = 0;
g->strt.nuse = 0;
g->strt.hash = NULL;
setnilvalue(registry(L));
setnilvalue(&g->l_registry);
luaZ_initbuffer(L, &g->buff);
g->panic = NULL;
g->version = lua_version(NULL);
g->gcstate = GCSpause;
g->rootgc = obj2gco(L);
g->sweepstrgc = 0;
g->sweepgc = &g->rootgc;
g->gray = NULL;
g->grayagain = NULL;
g->weak = NULL;
g->tmudata = NULL;
g->allgc = NULL;
g->finobj = NULL;
g->tobefnz = NULL;
g->gray = g->grayagain = NULL;
g->weak = g->ephemeron = g->allweak = NULL;
g->totalbytes = sizeof(LG);
g->GCdebt = 0;
g->gcpause = LUAI_GCPAUSE;
g->gcmajorinc = LUAI_GCMAJOR;
g->gcstepmul = LUAI_GCMUL;
g->gcdept = 0;
for (i=0; i<NUM_TAGS; i++) g->mt[i] = NULL;
if (luaD_rawrunprotected(L, f_luaopen, NULL) != 0) {
for (i=0; i < LUA_NUMTAGS; i++) g->mt[i] = NULL;
if (luaD_rawrunprotected(L, f_luaopen, NULL) != LUA_OK) {
/* memory allocation error: free partial state */
close_state(L);
L = NULL;
@ -190,25 +276,11 @@ LUA_API lua_State *lua_newstate (lua_Alloc f, void *ud) {
}
static void callallgcTM (lua_State *L, void *ud) {
UNUSED(ud);
luaC_callGCTM(L); /* call GC metamethods for all udata */
}
LUA_API void lua_close (lua_State *L) {
L = G(L)->mainthread; /* only the main thread can be closed */
lua_lock(L);
luaF_close(L, L->stack); /* close all upvalues for this thread */
luaC_separateudata(L, 1); /* separate udata that have GC metamethods */
L->errfunc = 0; /* no error function during GC metamethods */
do { /* repeat until no more errors */
L->ci = L->base_ci;
L->base = L->top = L->ci->base;
L->nCcalls = L->baseCcalls = 0;
} while (luaD_rawrunprotected(L, callallgcTM, NULL) != 0);
lua_assert(G(L)->tmudata == NULL);
luai_userstateclose(L);
close_state(L);
}

77
depends/lua/src/lstring.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lstring.c,v 2.8.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lstring.c,v 2.19 2011/05/03 16:01:57 roberto Exp $
** String table (keeps all strings handled by Lua)
** See Copyright Notice in lua.h
*/
@ -20,54 +20,55 @@
void luaS_resize (lua_State *L, int newsize) {
GCObject **newhash;
stringtable *tb;
int i;
if (G(L)->gcstate == GCSsweepstring)
return; /* cannot resize during GC traverse */
newhash = luaM_newvector(L, newsize, GCObject *);
tb = &G(L)->strt;
for (i=0; i<newsize; i++) newhash[i] = NULL;
stringtable *tb = &G(L)->strt;
/* cannot resize while GC is traversing strings */
luaC_runtilstate(L, ~bitmask(GCSsweepstring));
if (newsize > tb->size) {
luaM_reallocvector(L, tb->hash, tb->size, newsize, GCObject *);
for (i = tb->size; i < newsize; i++) tb->hash[i] = NULL;
}
/* rehash */
for (i=0; i<tb->size; i++) {
GCObject *p = tb->hash[i];
tb->hash[i] = NULL;
while (p) { /* for each node in the list */
GCObject *next = p->gch.next; /* save next */
unsigned int h = gco2ts(p)->hash;
int h1 = lmod(h, newsize); /* new position */
lua_assert(cast_int(h%newsize) == lmod(h, newsize));
p->gch.next = newhash[h1]; /* chain it */
newhash[h1] = p;
GCObject *next = gch(p)->next; /* save next */
unsigned int h = lmod(gco2ts(p)->hash, newsize); /* new position */
gch(p)->next = tb->hash[h]; /* chain it */
tb->hash[h] = p;
resetoldbit(p); /* see MOVE OLD rule */
p = next;
}
}
luaM_freearray(L, tb->hash, tb->size, TString *);
if (newsize < tb->size) {
/* shrinking slice must be empty */
lua_assert(tb->hash[newsize] == NULL && tb->hash[tb->size - 1] == NULL);
luaM_reallocvector(L, tb->hash, tb->size, newsize, GCObject *);
}
tb->size = newsize;
tb->hash = newhash;
}
static TString *newlstr (lua_State *L, const char *str, size_t l,
unsigned int h) {
size_t totalsize; /* total size of TString object */
GCObject **list; /* (pointer to) list where it will be inserted */
TString *ts;
stringtable *tb;
stringtable *tb = &G(L)->strt;
if (l+1 > (MAX_SIZET - sizeof(TString))/sizeof(char))
luaM_toobig(L);
ts = cast(TString *, luaM_malloc(L, (l+1)*sizeof(char)+sizeof(TString)));
if (tb->nuse >= cast(lu_int32, tb->size) && tb->size <= MAX_INT/2)
luaS_resize(L, tb->size*2); /* too crowded */
totalsize = sizeof(TString) + ((l + 1) * sizeof(char));
list = &tb->hash[lmod(h, tb->size)];
ts = &luaC_newobj(L, LUA_TSTRING, totalsize, list, 0)->ts;
ts->tsv.len = l;
ts->tsv.hash = h;
ts->tsv.marked = luaC_white(G(L));
ts->tsv.tt = LUA_TSTRING;
ts->tsv.reserved = 0;
memcpy(ts+1, str, l*sizeof(char));
((char *)(ts+1))[l] = '\0'; /* ending 0 */
tb = &G(L)->strt;
h = lmod(h, tb->size);
ts->tsv.next = tb->hash[h]; /* chain new entry */
tb->hash[h] = obj2gco(ts);
tb->nuse++;
if (tb->nuse > cast(lu_int32, tb->size) && tb->size <= MAX_INT/2)
luaS_resize(L, tb->size*2); /* too crowded */
return ts;
}
@ -81,15 +82,22 @@ TString *luaS_newlstr (lua_State *L, const char *str, size_t l) {
h = h ^ ((h<<5)+(h>>2)+cast(unsigned char, str[l1-1]));
for (o = G(L)->strt.hash[lmod(h, G(L)->strt.size)];
o != NULL;
o = o->gch.next) {
o = gch(o)->next) {
TString *ts = rawgco2ts(o);
if (ts->tsv.len == l && (memcmp(str, getstr(ts), l) == 0)) {
/* string may be dead */
if (isdead(G(L), o)) changewhite(o);
if (h == ts->tsv.hash &&
ts->tsv.len == l &&
(memcmp(str, getstr(ts), l * sizeof(char)) == 0)) {
if (isdead(G(L), o)) /* string is dead (but was not collected yet)? */
changewhite(o); /* resurrect it */
return ts;
}
}
return newlstr(L, str, l, h); /* not found */
return newlstr(L, str, l, h); /* not found; create a new string */
}
TString *luaS_new (lua_State *L, const char *str) {
return luaS_newlstr(L, str, strlen(str));
}
@ -97,15 +105,10 @@ Udata *luaS_newudata (lua_State *L, size_t s, Table *e) {
Udata *u;
if (s > MAX_SIZET - sizeof(Udata))
luaM_toobig(L);
u = cast(Udata *, luaM_malloc(L, s + sizeof(Udata)));
u->uv.marked = luaC_white(G(L)); /* is not finalized */
u->uv.tt = LUA_TUSERDATA;
u = &luaC_newobj(L, LUA_TUSERDATA, sizeof(Udata) + s, NULL, 0)->u;
u->uv.len = s;
u->uv.metatable = NULL;
u->uv.env = e;
/* chain it on udata list (after main thread) */
u->uv.next = G(L)->mainthread->next;
G(L)->mainthread->next = obj2gco(u);
return u;
}

378
depends/lua/src/lstrlib.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lstrlib.c,v 1.132.1.4 2008/07/11 17:27:21 roberto Exp $
** $Id: lstrlib.c,v 1.173 2011/11/30 18:24:56 roberto Exp $
** Standard library for string operations and pattern-matching
** See Copyright Notice in lua.h
*/
@ -20,6 +20,15 @@
#include "lualib.h"
/*
** maximum number of captures that a pattern can do during
** pattern-matching. This limit is arbitrary.
*/
#if !defined(LUA_MAXCAPTURES)
#define LUA_MAXCAPTURES 32
#endif
/* macro to `unsign' a character */
#define uchar(c) ((unsigned char)(c))
@ -28,25 +37,26 @@
static int str_len (lua_State *L) {
size_t l;
luaL_checklstring(L, 1, &l);
lua_pushinteger(L, l);
lua_pushinteger(L, (lua_Integer)l);
return 1;
}
static ptrdiff_t posrelat (ptrdiff_t pos, size_t len) {
/* relative string position: negative means back from end */
if (pos < 0) pos += (ptrdiff_t)len + 1;
return (pos >= 0) ? pos : 0;
/* translate a relative string position: negative means back from end */
static size_t posrelat (ptrdiff_t pos, size_t len) {
if (pos >= 0) return (size_t)pos;
else if (0u - (size_t)pos > len) return 0;
else return len - ((size_t)-pos) + 1;
}
static int str_sub (lua_State *L) {
size_t l;
const char *s = luaL_checklstring(L, 1, &l);
ptrdiff_t start = posrelat(luaL_checkinteger(L, 2), l);
ptrdiff_t end = posrelat(luaL_optinteger(L, 3, -1), l);
size_t start = posrelat(luaL_checkinteger(L, 2), l);
size_t end = posrelat(luaL_optinteger(L, 3, -1), l);
if (start < 1) start = 1;
if (end > (ptrdiff_t)l) end = (ptrdiff_t)l;
if (end > l) end = l;
if (start <= end)
lua_pushlstring(L, s + start - 1, end - start + 1);
else lua_pushliteral(L, "");
@ -55,12 +65,13 @@ static int str_sub (lua_State *L) {
static int str_reverse (lua_State *L) {
size_t l;
size_t l, i;
luaL_Buffer b;
const char *s = luaL_checklstring(L, 1, &l);
luaL_buffinit(L, &b);
while (l--) luaL_addchar(&b, s[l]);
luaL_pushresult(&b);
char *p = luaL_buffinitsize(L, &b, l);
for (i = 0; i < l; i++)
p[i] = s[l - i - 1];
luaL_pushresultsize(&b, l);
return 1;
}
@ -70,10 +81,10 @@ static int str_lower (lua_State *L) {
size_t i;
luaL_Buffer b;
const char *s = luaL_checklstring(L, 1, &l);
luaL_buffinit(L, &b);
char *p = luaL_buffinitsize(L, &b, l);
for (i=0; i<l; i++)
luaL_addchar(&b, tolower(uchar(s[i])));
luaL_pushresult(&b);
p[i] = tolower(uchar(s[i]));
luaL_pushresultsize(&b, l);
return 1;
}
@ -83,22 +94,36 @@ static int str_upper (lua_State *L) {
size_t i;
luaL_Buffer b;
const char *s = luaL_checklstring(L, 1, &l);
luaL_buffinit(L, &b);
char *p = luaL_buffinitsize(L, &b, l);
for (i=0; i<l; i++)
luaL_addchar(&b, toupper(uchar(s[i])));
luaL_pushresult(&b);
p[i] = toupper(uchar(s[i]));
luaL_pushresultsize(&b, l);
return 1;
}
/* reasonable limit to avoid arithmetic overflow */
#define MAXSIZE ((~(size_t)0) >> 1)
static int str_rep (lua_State *L) {
size_t l;
luaL_Buffer b;
size_t l, lsep;
const char *s = luaL_checklstring(L, 1, &l);
int n = luaL_checkint(L, 2);
luaL_buffinit(L, &b);
while (n-- > 0)
luaL_addlstring(&b, s, l);
luaL_pushresult(&b);
const char *sep = luaL_optlstring(L, 3, "", &lsep);
if (n <= 0) lua_pushliteral(L, "");
else if (l + lsep < l || l + lsep >= MAXSIZE / n) /* may overflow? */
return luaL_error(L, "resulting string too large");
else {
size_t totallen = n * l + (n - 1) * lsep;
luaL_Buffer b;
char *p = luaL_buffinitsize(L, &b, totallen);
while (n-- > 1) { /* first n-1 copies (followed by separator) */
memcpy(p, s, l * sizeof(char)); p += l;
memcpy(p, sep, lsep * sizeof(char)); p += lsep;
}
memcpy(p, s, l * sizeof(char)); /* last copy (not followed by separator) */
luaL_pushresultsize(&b, totallen);
}
return 1;
}
@ -106,15 +131,15 @@ static int str_rep (lua_State *L) {
static int str_byte (lua_State *L) {
size_t l;
const char *s = luaL_checklstring(L, 1, &l);
ptrdiff_t posi = posrelat(luaL_optinteger(L, 2, 1), l);
ptrdiff_t pose = posrelat(luaL_optinteger(L, 3, posi), l);
size_t posi = posrelat(luaL_optinteger(L, 2, 1), l);
size_t pose = posrelat(luaL_optinteger(L, 3, posi), l);
int n, i;
if (posi <= 0) posi = 1;
if ((size_t)pose > l) pose = l;
if (posi < 1) posi = 1;
if (pose > l) pose = l;
if (posi > pose) return 0; /* empty interval; return no values */
n = (int)(pose - posi + 1);
if (posi + n <= pose) /* overflow? */
luaL_error(L, "string slice too long");
if (posi + n <= pose) /* (size_t -> int) overflow? */
return luaL_error(L, "string slice too long");
luaL_checkstack(L, n, "string slice too long");
for (i=0; i<n; i++)
lua_pushinteger(L, uchar(s[posi+i-1]));
@ -126,13 +151,13 @@ static int str_char (lua_State *L) {
int n = lua_gettop(L); /* number of arguments */
int i;
luaL_Buffer b;
luaL_buffinit(L, &b);
char *p = luaL_buffinitsize(L, &b, n);
for (i=1; i<=n; i++) {
int c = luaL_checkint(L, i);
luaL_argcheck(L, uchar(c) == c, i, "invalid value");
luaL_addchar(&b, uchar(c));
luaL_argcheck(L, uchar(c) == c, i, "value out of range");
p[i - 1] = uchar(c);
}
luaL_pushresult(&b);
luaL_pushresultsize(&b, n);
return 1;
}
@ -150,7 +175,7 @@ static int str_dump (lua_State *L) {
lua_settop(L, 1);
luaL_buffinit(L,&b);
if (lua_dump(L, writer, &b) != 0)
luaL_error(L, "unable to dump given function");
return luaL_error(L, "unable to dump given function");
luaL_pushresult(&b);
return 1;
}
@ -169,7 +194,8 @@ static int str_dump (lua_State *L) {
typedef struct MatchState {
const char *src_init; /* init of source string */
const char *src_end; /* end (`\0') of source string */
const char *src_end; /* end ('\0') of source string */
const char *p_end; /* end ('\0') of pattern */
lua_State *L;
int level; /* total number of captures (finished or unfinished) */
struct {
@ -186,7 +212,7 @@ typedef struct MatchState {
static int check_capture (MatchState *ms, int l) {
l -= '1';
if (l < 0 || l >= ms->level || ms->capture[l].len == CAP_UNFINISHED)
return luaL_error(ms->L, "invalid capture index");
return luaL_error(ms->L, "invalid capture index %%%d", l + 1);
return l;
}
@ -202,16 +228,16 @@ static int capture_to_close (MatchState *ms) {
static const char *classend (MatchState *ms, const char *p) {
switch (*p++) {
case L_ESC: {
if (*p == '\0')
if (p == ms->p_end)
luaL_error(ms->L, "malformed pattern (ends with " LUA_QL("%%") ")");
return p+1;
}
case '[': {
if (*p == '^') p++;
do { /* look for a `]' */
if (*p == '\0')
if (p == ms->p_end)
luaL_error(ms->L, "malformed pattern (missing " LUA_QL("]") ")");
if (*(p++) == L_ESC && *p != '\0')
if (*(p++) == L_ESC && p < ms->p_end)
p++; /* skip escapes (e.g. `%]') */
} while (*p != ']');
return p+1;
@ -229,13 +255,14 @@ static int match_class (int c, int cl) {
case 'a' : res = isalpha(c); break;
case 'c' : res = iscntrl(c); break;
case 'd' : res = isdigit(c); break;
case 'g' : res = isgraph(c); break;
case 'l' : res = islower(c); break;
case 'p' : res = ispunct(c); break;
case 's' : res = isspace(c); break;
case 'u' : res = isupper(c); break;
case 'w' : res = isalnum(c); break;
case 'x' : res = isxdigit(c); break;
case 'z' : res = (c == 0); break;
case 'z' : res = (c == 0); break; /* deprecated option */
default: return (cl == c);
}
return (islower(cl) ? res : !res);
@ -280,8 +307,9 @@ static const char *match (MatchState *ms, const char *s, const char *p);
static const char *matchbalance (MatchState *ms, const char *s,
const char *p) {
if (*p == 0 || *(p+1) == 0)
luaL_error(ms->L, "unbalanced pattern");
if (p >= ms->p_end - 1)
luaL_error(ms->L, "malformed pattern "
"(missing arguments to " LUA_QL("%%b") ")");
if (*s != *p) return NULL;
else {
int b = *p;
@ -364,6 +392,8 @@ static const char *match_capture (MatchState *ms, const char *s, int l) {
static const char *match (MatchState *ms, const char *s, const char *p) {
init: /* using goto's to optimize tail recursion */
if (p == ms->p_end) /* end of pattern? */
return s; /* match succeeded */
switch (*p) {
case '(': { /* start capture */
if (*(p+1) == ')') /* position capture? */
@ -374,7 +404,12 @@ static const char *match (MatchState *ms, const char *s, const char *p) {
case ')': { /* end capture */
return end_capture(ms, s, p+1);
}
case L_ESC: {
case '$': {
if ((p+1) == ms->p_end) /* is the `$' the last char in pattern? */
return (s == ms->src_end) ? s : NULL; /* check end of string */
else goto dflt;
}
case L_ESC: { /* escaped sequences not in the format class[*+?-]? */
switch (*(p+1)) {
case 'b': { /* balanced string? */
s = matchbalance(ms, s, p+2);
@ -393,25 +428,17 @@ static const char *match (MatchState *ms, const char *s, const char *p) {
!matchbracketclass(uchar(*s), p, ep-1)) return NULL;
p=ep; goto init; /* else return match(ms, s, ep); */
}
default: {
if (isdigit(uchar(*(p+1)))) { /* capture results (%0-%9)? */
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
case '8': case '9': { /* capture results (%0-%9)? */
s = match_capture(ms, s, uchar(*(p+1)));
if (s == NULL) return NULL;
p+=2; goto init; /* else return match(ms, s, p+2) */
}
goto dflt; /* case default */
default: goto dflt;
}
}
}
case '\0': { /* end of pattern */
return s; /* match succeeded */
}
case '$': {
if (*(p+1) == '\0') /* is the `$' the last char in pattern? */
return (s == ms->src_end) ? s : NULL; /* check end of string */
else goto dflt;
}
default: dflt: { /* it is a pattern item */
default: dflt: { /* pattern class plus optional suffix */
const char *ep = classend(ms, p); /* points to what is next */
int m = s < ms->src_end && singlematch(uchar(*s), p, ep);
switch (*ep) {
@ -492,30 +519,49 @@ static int push_captures (MatchState *ms, const char *s, const char *e) {
}
/* check whether pattern has no special characters */
static int nospecials (const char *p, size_t l) {
size_t upto = 0;
do {
if (strpbrk(p + upto, SPECIALS))
return 0; /* pattern has a special character */
upto += strlen(p + upto) + 1; /* may have more after \0 */
} while (upto <= l);
return 1; /* no special chars found */
}
static int str_find_aux (lua_State *L, int find) {
size_t l1, l2;
const char *s = luaL_checklstring(L, 1, &l1);
const char *p = luaL_checklstring(L, 2, &l2);
ptrdiff_t init = posrelat(luaL_optinteger(L, 3, 1), l1) - 1;
if (init < 0) init = 0;
else if ((size_t)(init) > l1) init = (ptrdiff_t)l1;
if (find && (lua_toboolean(L, 4) || /* explicit request? */
strpbrk(p, SPECIALS) == NULL)) { /* or no special characters? */
size_t ls, lp;
const char *s = luaL_checklstring(L, 1, &ls);
const char *p = luaL_checklstring(L, 2, &lp);
size_t init = posrelat(luaL_optinteger(L, 3, 1), ls);
if (init < 1) init = 1;
else if (init > ls + 1) { /* start after string's end? */
lua_pushnil(L); /* cannot find anything */
return 1;
}
/* explicit request or no special characters? */
if (find && (lua_toboolean(L, 4) || nospecials(p, lp))) {
/* do a plain search */
const char *s2 = lmemfind(s+init, l1-init, p, l2);
const char *s2 = lmemfind(s + init - 1, ls - init + 1, p, lp);
if (s2) {
lua_pushinteger(L, s2 - s + 1);
lua_pushinteger(L, s2-s+l2);
lua_pushinteger(L, s2 - s + lp);
return 2;
}
}
else {
MatchState ms;
int anchor = (*p == '^') ? (p++, 1) : 0;
const char *s1=s+init;
const char *s1 = s + init - 1;
int anchor = (*p == '^');
if (anchor) {
p++; lp--; /* skip anchor character */
}
ms.L = L;
ms.src_init = s;
ms.src_end = s+l1;
ms.src_end = s + ls;
ms.p_end = p + lp;
do {
const char *res;
ms.level = 0;
@ -547,13 +593,14 @@ static int str_match (lua_State *L) {
static int gmatch_aux (lua_State *L) {
MatchState ms;
size_t ls;
size_t ls, lp;
const char *s = lua_tolstring(L, lua_upvalueindex(1), &ls);
const char *p = lua_tostring(L, lua_upvalueindex(2));
const char *p = lua_tolstring(L, lua_upvalueindex(2), &lp);
const char *src;
ms.L = L;
ms.src_init = s;
ms.src_end = s+ls;
ms.p_end = p + lp;
for (src = s + (size_t)lua_tointeger(L, lua_upvalueindex(3));
src <= ms.src_end;
src++) {
@ -581,12 +628,6 @@ static int gmatch (lua_State *L) {
}
static int gfind_nodef (lua_State *L) {
return luaL_error(L, LUA_QL("string.gfind") " was renamed to "
LUA_QL("string.gmatch"));
}
static void add_s (MatchState *ms, luaL_Buffer *b, const char *s,
const char *e) {
size_t l, i;
@ -596,8 +637,12 @@ static void add_s (MatchState *ms, luaL_Buffer *b, const char *s,
luaL_addchar(b, news[i]);
else {
i++; /* skip ESC */
if (!isdigit(uchar(news[i])))
if (!isdigit(uchar(news[i]))) {
if (news[i] != L_ESC)
luaL_error(ms->L, "invalid use of " LUA_QL("%c")
" in replacement string", L_ESC);
luaL_addchar(b, news[i]);
}
else if (news[i] == '0')
luaL_addlstring(b, s, e - s);
else {
@ -610,14 +655,9 @@ static void add_s (MatchState *ms, luaL_Buffer *b, const char *s,
static void add_value (MatchState *ms, luaL_Buffer *b, const char *s,
const char *e) {
const char *e, int tr) {
lua_State *L = ms->L;
switch (lua_type(L, 3)) {
case LUA_TNUMBER:
case LUA_TSTRING: {
add_s(ms, b, s, e);
return;
}
switch (tr) {
case LUA_TFUNCTION: {
int n;
lua_pushvalue(L, 3);
@ -630,6 +670,10 @@ static void add_value (MatchState *ms, luaL_Buffer *b, const char *s,
lua_gettable(L, 3);
break;
}
default: { /* LUA_TNUMBER or LUA_TSTRING */
add_s(ms, b, s, e);
return;
}
}
if (!lua_toboolean(L, -1)) { /* nil or false? */
lua_pop(L, 1);
@ -642,29 +686,33 @@ static void add_value (MatchState *ms, luaL_Buffer *b, const char *s,
static int str_gsub (lua_State *L) {
size_t srcl;
size_t srcl, lp;
const char *src = luaL_checklstring(L, 1, &srcl);
const char *p = luaL_checkstring(L, 2);
const char *p = luaL_checklstring(L, 2, &lp);
int tr = lua_type(L, 3);
int max_s = luaL_optint(L, 4, srcl+1);
int anchor = (*p == '^') ? (p++, 1) : 0;
int n = 0;
size_t max_s = luaL_optinteger(L, 4, srcl+1);
int anchor = (*p == '^');
size_t n = 0;
MatchState ms;
luaL_Buffer b;
luaL_argcheck(L, tr == LUA_TNUMBER || tr == LUA_TSTRING ||
tr == LUA_TFUNCTION || tr == LUA_TTABLE, 3,
"string/function/table expected");
luaL_buffinit(L, &b);
if (anchor) {
p++; lp--; /* skip anchor character */
}
ms.L = L;
ms.src_init = src;
ms.src_end = src+srcl;
ms.p_end = p + lp;
while (n < max_s) {
const char *e;
ms.level = 0;
e = match(&ms, src, p);
if (e) {
n++;
add_value(&ms, &b, src, e);
add_value(&ms, &b, src, e, tr);
}
if (e && e>src) /* non empty match? */
src = e; /* skip it */
@ -682,6 +730,49 @@ static int str_gsub (lua_State *L) {
/* }====================================================== */
/*
** {======================================================
** STRING FORMAT
** =======================================================
*/
/*
** LUA_INTFRMLEN is the length modifier for integer conversions in
** 'string.format'; LUA_INTFRM_T is the integer type corresponding to
** the previous length
*/
#if !defined(LUA_INTFRMLEN) /* { */
#if defined(LUA_USE_LONGLONG)
#define LUA_INTFRMLEN "ll"
#define LUA_INTFRM_T long long
#else
#define LUA_INTFRMLEN "l"
#define LUA_INTFRM_T long
#endif
#endif /* } */
#define MAX_UINTFRM ((lua_Number)(~(unsigned LUA_INTFRM_T)0))
#define MAX_INTFRM ((lua_Number)((~(unsigned LUA_INTFRM_T)0)/2))
#define MIN_INTFRM (-(lua_Number)((~(unsigned LUA_INTFRM_T)0)/2) - 1)
/*
** LUA_FLTFRMLEN is the length modifier for float conversions in
** 'string.format'; LUA_FLTFRM_T is the float type corresponding to
** the previous length
*/
#if !defined(LUA_FLTFRMLEN)
#define LUA_FLTFRMLEN ""
#define LUA_FLTFRM_T double
#endif
/* maximum size of each formatted item (> len(format('%99.99f', -1e308))) */
#define MAX_ITEM 512
/* valid flags in a format specification */
@ -698,25 +789,20 @@ static void addquoted (lua_State *L, luaL_Buffer *b, int arg) {
const char *s = luaL_checklstring(L, arg, &l);
luaL_addchar(b, '"');
while (l--) {
switch (*s) {
case '"': case '\\': case '\n': {
if (*s == '"' || *s == '\\' || *s == '\n') {
luaL_addchar(b, '\\');
luaL_addchar(b, *s);
break;
}
case '\r': {
luaL_addlstring(b, "\\r", 2);
break;
}
case '\0': {
luaL_addlstring(b, "\\000", 4);
break;
else if (*s == '\0' || iscntrl(uchar(*s))) {
char buff[10];
if (!isdigit(uchar(*(s+1))))
sprintf(buff, "\\%d", (int)uchar(*s));
else
sprintf(buff, "\\%03d", (int)uchar(*s));
luaL_addstring(b, buff);
}
default: {
else
luaL_addchar(b, *s);
break;
}
}
s++;
}
luaL_addchar(b, '"');
@ -725,7 +811,7 @@ static void addquoted (lua_State *L, luaL_Buffer *b, int arg) {
static const char *scanformat (lua_State *L, const char *strfrmt, char *form) {
const char *p = strfrmt;
while (*p != '\0' && strchr(FLAGS, *p) != NULL) p++; /* skip flags */
if ((size_t)(p - strfrmt) >= sizeof(FLAGS))
if ((size_t)(p - strfrmt) >= sizeof(FLAGS)/sizeof(char))
luaL_error(L, "invalid format (repeated flags)");
if (isdigit(uchar(*p))) p++; /* skip width */
if (isdigit(uchar(*p))) p++; /* (2 digits at most) */
@ -737,23 +823,28 @@ static const char *scanformat (lua_State *L, const char *strfrmt, char *form) {
if (isdigit(uchar(*p)))
luaL_error(L, "invalid format (width or precision too long)");
*(form++) = '%';
strncpy(form, strfrmt, p - strfrmt + 1);
memcpy(form, strfrmt, (p - strfrmt + 1) * sizeof(char));
form += p - strfrmt + 1;
*form = '\0';
return p;
}
static void addintlen (char *form) {
/*
** add length modifier into formats
*/
static void addlenmod (char *form, const char *lenmod) {
size_t l = strlen(form);
size_t lm = strlen(lenmod);
char spec = form[l - 1];
strcpy(form + l - 1, LUA_INTFRMLEN);
form[l + sizeof(LUA_INTFRMLEN) - 2] = spec;
form[l + sizeof(LUA_INTFRMLEN) - 1] = '\0';
strcpy(form + l - 1, lenmod);
form[l + lm - 1] = spec;
form[l + lm] = '\0';
}
static int str_format (lua_State *L) {
int top = lua_gettop(L);
int arg = 1;
size_t sfl;
const char *strfrmt = luaL_checklstring(L, arg, &sfl);
@ -767,45 +858,57 @@ static int str_format (lua_State *L) {
luaL_addchar(&b, *strfrmt++); /* %% */
else { /* format item */
char form[MAX_FORMAT]; /* to store the format (`%...') */
char buff[MAX_ITEM]; /* to store the formatted item */
arg++;
char *buff = luaL_prepbuffsize(&b, MAX_ITEM); /* to put formatted item */
int nb = 0; /* number of bytes in added item */
if (++arg > top)
luaL_argerror(L, arg, "no value");
strfrmt = scanformat(L, strfrmt, form);
switch (*strfrmt++) {
case 'c': {
sprintf(buff, form, (int)luaL_checknumber(L, arg));
nb = sprintf(buff, form, luaL_checkint(L, arg));
break;
}
case 'd': case 'i': {
addintlen(form);
sprintf(buff, form, (LUA_INTFRM_T)luaL_checknumber(L, arg));
lua_Number n = luaL_checknumber(L, arg);
luaL_argcheck(L, (MIN_INTFRM - 1) < n && n < (MAX_INTFRM + 1), arg,
"not a number in proper range");
addlenmod(form, LUA_INTFRMLEN);
nb = sprintf(buff, form, (LUA_INTFRM_T)n);
break;
}
case 'o': case 'u': case 'x': case 'X': {
addintlen(form);
sprintf(buff, form, (unsigned LUA_INTFRM_T)luaL_checknumber(L, arg));
lua_Number n = luaL_checknumber(L, arg);
luaL_argcheck(L, 0 <= n && n < (MAX_UINTFRM + 1), arg,
"not a non-negative number in proper range");
addlenmod(form, LUA_INTFRMLEN);
nb = sprintf(buff, form, (unsigned LUA_INTFRM_T)n);
break;
}
case 'e': case 'E': case 'f':
#if defined(LUA_USE_AFORMAT)
case 'a': case 'A':
#endif
case 'g': case 'G': {
sprintf(buff, form, (double)luaL_checknumber(L, arg));
addlenmod(form, LUA_FLTFRMLEN);
nb = sprintf(buff, form, (LUA_FLTFRM_T)luaL_checknumber(L, arg));
break;
}
case 'q': {
addquoted(L, &b, arg);
continue; /* skip the 'addsize' at the end */
break;
}
case 's': {
size_t l;
const char *s = luaL_checklstring(L, arg, &l);
const char *s = luaL_tolstring(L, arg, &l);
if (!strchr(form, '.') && l >= 100) {
/* no precision and string is too long to be formatted;
keep original string */
lua_pushvalue(L, arg);
luaL_addvalue(&b);
continue; /* skip the `addsize' at the end */
break;
}
else {
sprintf(buff, form, s);
nb = sprintf(buff, form, s);
lua_pop(L, 1); /* remove result from 'luaL_tolstring' */
break;
}
}
@ -814,13 +917,15 @@ static int str_format (lua_State *L) {
LUA_QL("format"), *(strfrmt - 1));
}
}
luaL_addlstring(&b, buff, strlen(buff));
luaL_addsize(&b, nb);
}
}
luaL_pushresult(&b);
return 1;
}
/* }====================================================== */
static const luaL_Reg strlib[] = {
{"byte", str_byte},
@ -828,7 +933,6 @@ static const luaL_Reg strlib[] = {
{"dump", str_dump},
{"find", str_find},
{"format", str_format},
{"gfind", gfind_nodef},
{"gmatch", gmatch},
{"gsub", str_gsub},
{"len", str_len},
@ -843,13 +947,13 @@ static const luaL_Reg strlib[] = {
static void createmetatable (lua_State *L) {
lua_createtable(L, 0, 1); /* create metatable for strings */
lua_createtable(L, 0, 1); /* table to be metatable for strings */
lua_pushliteral(L, ""); /* dummy string */
lua_pushvalue(L, -2);
lua_setmetatable(L, -2); /* set string metatable */
lua_pushvalue(L, -2); /* copy table */
lua_setmetatable(L, -2); /* set table as metatable for strings */
lua_pop(L, 1); /* pop dummy string */
lua_pushvalue(L, -2); /* string library... */
lua_setfield(L, -2, "__index"); /* ...is the __index metamethod */
lua_pushvalue(L, -2); /* get string library */
lua_setfield(L, -2, "__index"); /* metatable.__index = string */
lua_pop(L, 1); /* pop metatable */
}
@ -857,12 +961,8 @@ static void createmetatable (lua_State *L) {
/*
** Open string library
*/
LUALIB_API int luaopen_string (lua_State *L) {
luaL_register(L, LUA_STRLIBNAME, strlib);
#if defined(LUA_COMPAT_GFIND)
lua_getfield(L, -1, "gmatch");
lua_setfield(L, -2, "gfind");
#endif
LUAMOD_API int luaopen_string (lua_State *L) {
luaL_newlib(L, strlib);
createmetatable(L);
return 1;
}

177
depends/lua/src/ltable.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: ltable.c,v 2.32.1.2 2007/12/28 15:32:23 roberto Exp $
** $Id: ltable.c,v 2.67 2011/11/30 12:41:45 roberto Exp $
** Lua tables (hash)
** See Copyright Notice in lua.h
*/
@ -18,7 +18,6 @@
** Hence even when the load factor reaches 100%, performance remains good.
*/
#include <math.h>
#include <string.h>
#define ltable_c
@ -32,14 +31,16 @@
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "lvm.h"
/*
** max size of array part is 2^MAXBITS
*/
#if LUAI_BITSINT > 26
#define MAXBITS 26
#if LUAI_BITSINT >= 32
#define MAXBITS 30
#else
#define MAXBITS (LUAI_BITSINT-2)
#endif
@ -63,18 +64,13 @@
#define hashpointer(t,p) hashmod(t, IntPoint(p))
/*
** number of ints inside a lua_Number
*/
#define numints cast_int(sizeof(lua_Number)/sizeof(int))
#define dummynode (&dummynode_)
#define isdummy(n) ((n) == dummynode)
static const Node dummynode_ = {
{{NULL}, LUA_TNIL}, /* value */
{{{NULL}, LUA_TNIL, NULL}} /* key */
{NILCONSTANT}, /* value */
{{NILCONSTANT, NULL}} /* key */
};
@ -82,13 +78,14 @@ static const Node dummynode_ = {
** hash for lua_Numbers
*/
static Node *hashnum (const Table *t, lua_Number n) {
unsigned int a[numints];
int i;
if (luai_numeq(n, 0)) /* avoid problems with -0 */
return gnode(t, 0);
memcpy(a, &n, sizeof(a));
for (i = 1; i < numints; i++) a[0] += a[i];
return hashmod(t, a[0]);
luai_hashnum(i, n);
if (i < 0) {
if (cast(unsigned int, i) == 0u - i) /* use unsigned to avoid overflows */
i = 0; /* handle INT_MIN */
i = -i; /* must be a positive value */
}
return hashmod(t, i);
}
@ -107,6 +104,8 @@ static Node *mainposition (const Table *t, const TValue *key) {
return hashboolean(t, bvalue(key));
case LUA_TLIGHTUSERDATA:
return hashpointer(t, pvalue(key));
case LUA_TLCF:
return hashpointer(t, fvalue(key));
default:
return hashpointer(t, gcvalue(key));
}
@ -132,7 +131,7 @@ static int arrayindex (const TValue *key) {
/*
** returns the index of a `key' for table traversals. First goes all
** elements in the array part, then elements in the hash part. The
** beginning of a traversal is signalled by -1.
** beginning of a traversal is signaled by -1.
*/
static int findindex (lua_State *L, Table *t, StkId key) {
int i;
@ -142,19 +141,19 @@ static int findindex (lua_State *L, Table *t, StkId key) {
return i-1; /* yes; that's the index (corrected to C) */
else {
Node *n = mainposition(t, key);
do { /* check whether `key' is somewhere in the chain */
for (;;) { /* check whether `key' is somewhere in the chain */
/* key may be dead already, but it is ok to use it in `next' */
if (luaO_rawequalObj(key2tval(n), key) ||
(ttype(gkey(n)) == LUA_TDEADKEY && iscollectable(key) &&
gcvalue(gkey(n)) == gcvalue(key))) {
if (luaV_rawequalobj(gkey(n), key) ||
(ttisdeadkey(gkey(n)) && iscollectable(key) &&
deadvalue(gkey(n)) == gcvalue(key))) {
i = cast_int(n - gnode(t, 0)); /* key index in hash table */
/* hash elements are numbered after array ones */
return i + t->sizearray;
}
else n = gnext(n);
} while (n);
if (n == NULL)
luaG_runerror(L, "invalid key to " LUA_QL("next")); /* key not found */
return 0; /* to avoid warnings */
}
}
}
@ -170,7 +169,7 @@ int luaH_next (lua_State *L, Table *t, StkId key) {
}
for (i -= t->sizearray; i < sizenode(t); i++) { /* then hash part */
if (!ttisnil(gval(gnode(t, i)))) { /* a non-nil value? */
setobj2s(L, key, key2tval(gnode(t, i)));
setobj2s(L, key, gkey(gnode(t, i)));
setobj2s(L, key+1, gval(gnode(t, i)));
return 1;
}
@ -211,7 +210,7 @@ static int computesizes (int nums[], int *narray) {
static int countint (const TValue *key, int *nums) {
int k = arrayindex(key);
if (0 < k && k <= MAXASIZE) { /* is `key' an appropriate array index? */
nums[ceillog2(k)]++; /* count as such */
nums[luaO_ceillog2(k)]++; /* count as such */
return 1;
}
else
@ -251,7 +250,7 @@ static int numusehash (const Table *t, int *nums, int *pnasize) {
while (i--) {
Node *n = &t->node[i];
if (!ttisnil(gval(n))) {
ause += countint(key2tval(n), nums);
ause += countint(gkey(n), nums);
totaluse++;
}
}
@ -277,7 +276,7 @@ static void setnodevector (lua_State *L, Table *t, int size) {
}
else {
int i;
lsize = ceillog2(size);
lsize = luaO_ceillog2(size);
if (lsize > MAXBITS)
luaG_runerror(L, "table overflow");
size = twoto(lsize);
@ -294,7 +293,7 @@ static void setnodevector (lua_State *L, Table *t, int size) {
}
static void resize (lua_State *L, Table *t, int nasize, int nhsize) {
void luaH_resize (lua_State *L, Table *t, int nasize, int nhsize) {
int i;
int oldasize = t->sizearray;
int oldhsize = t->lsizenode;
@ -308,7 +307,7 @@ static void resize (lua_State *L, Table *t, int nasize, int nhsize) {
/* re-insert elements from vanishing slice */
for (i=nasize; i<oldasize; i++) {
if (!ttisnil(&t->array[i]))
setobjt2t(L, luaH_setnum(L, t, i+1), &t->array[i]);
luaH_setint(L, t, i + 1, &t->array[i]);
}
/* shrink array */
luaM_reallocvector(L, t->array, oldasize, nasize, TValue);
@ -316,23 +315,26 @@ static void resize (lua_State *L, Table *t, int nasize, int nhsize) {
/* re-insert elements from hash part */
for (i = twoto(oldhsize) - 1; i >= 0; i--) {
Node *old = nold+i;
if (!ttisnil(gval(old)))
setobjt2t(L, luaH_set(L, t, key2tval(old)), gval(old));
if (!ttisnil(gval(old))) {
/* doesn't need barrier/invalidate cache, as entry was
already present in the table */
setobjt2t(L, luaH_set(L, t, gkey(old)), gval(old));
}
if (nold != dummynode)
luaM_freearray(L, nold, twoto(oldhsize), Node); /* free old array */
}
if (!isdummy(nold))
luaM_freearray(L, nold, cast(size_t, twoto(oldhsize))); /* free old array */
}
void luaH_resizearray (lua_State *L, Table *t, int nasize) {
int nsize = (t->node == dummynode) ? 0 : sizenode(t);
resize(L, t, nasize, nsize);
int nsize = isdummy(t->node) ? 0 : sizenode(t);
luaH_resize(L, t, nasize, nsize);
}
static void rehash (lua_State *L, Table *t, const TValue *ek) {
int nasize, na;
int nums[MAXBITS+1]; /* nums[i] = number of keys between 2^(i-1) and 2^i */
int nums[MAXBITS+1]; /* nums[i] = number of keys with 2^(i-1) < k <= 2^i */
int i;
int totaluse;
for (i=0; i<=MAXBITS; i++) nums[i] = 0; /* reset counts */
@ -345,7 +347,7 @@ static void rehash (lua_State *L, Table *t, const TValue *ek) {
/* compute new size for array part */
na = computesizes(nums, &nasize);
/* resize the table to new computed sizes */
resize(L, t, nasize, totaluse - na);
luaH_resize(L, t, nasize, totaluse - na);
}
@ -355,32 +357,28 @@ static void rehash (lua_State *L, Table *t, const TValue *ek) {
*/
Table *luaH_new (lua_State *L, int narray, int nhash) {
Table *t = luaM_new(L, Table);
luaC_link(L, obj2gco(t), LUA_TTABLE);
Table *luaH_new (lua_State *L) {
Table *t = &luaC_newobj(L, LUA_TTABLE, sizeof(Table), NULL, 0)->h;
t->metatable = NULL;
t->flags = cast_byte(~0);
/* temporary values (kept only if some malloc fails) */
t->array = NULL;
t->sizearray = 0;
t->lsizenode = 0;
t->node = cast(Node *, dummynode);
setarrayvector(L, t, narray);
setnodevector(L, t, nhash);
setnodevector(L, t, 0);
return t;
}
void luaH_free (lua_State *L, Table *t) {
if (t->node != dummynode)
luaM_freearray(L, t->node, sizenode(t), Node);
luaM_freearray(L, t->array, t->sizearray, TValue);
if (!isdummy(t->node))
luaM_freearray(L, t->node, cast(size_t, sizenode(t)));
luaM_freearray(L, t->array, t->sizearray);
luaM_free(L, t);
}
static Node *getfreepos (Table *t) {
while (t->lastfree-- > t->node) {
while (t->lastfree > t->node) {
t->lastfree--;
if (ttisnil(gkey(t->lastfree)))
return t->lastfree;
}
@ -396,17 +394,22 @@ static Node *getfreepos (Table *t) {
** put new key in its main position; otherwise (colliding node is in its main
** position), new key goes to an empty position.
*/
static TValue *newkey (lua_State *L, Table *t, const TValue *key) {
Node *mp = mainposition(t, key);
if (!ttisnil(gval(mp)) || mp == dummynode) {
TValue *luaH_newkey (lua_State *L, Table *t, const TValue *key) {
Node *mp;
if (ttisnil(key)) luaG_runerror(L, "table index is nil");
else if (ttisnumber(key) && luai_numisnan(L, nvalue(key)))
luaG_runerror(L, "table index is NaN");
mp = mainposition(t, key);
if (!ttisnil(gval(mp)) || isdummy(mp)) { /* main position is taken? */
Node *othern;
Node *n = getfreepos(t); /* get a free place */
if (n == NULL) { /* cannot find a free place? */
rehash(L, t, key); /* grow table */
return luaH_set(L, t, key); /* re-insert key into grown table */
/* whatever called 'newkey' take care of TM cache and GC barrier */
return luaH_set(L, t, key); /* insert key into grown table */
}
lua_assert(n != dummynode);
othern = mainposition(t, key2tval(mp));
lua_assert(!isdummy(n));
othern = mainposition(t, gkey(mp));
if (othern != mp) { /* is colliding node out of its main position? */
/* yes; move colliding node into free position */
while (gnext(othern) != mp) othern = gnext(othern); /* find previous */
@ -422,8 +425,8 @@ static TValue *newkey (lua_State *L, Table *t, const TValue *key) {
mp = n;
}
}
gkey(mp)->value = key->value; gkey(mp)->tt = key->tt;
luaC_barriert(L, t, key);
setobj2t(L, gkey(mp), key);
luaC_barrierback(L, obj2gco(t), key);
lua_assert(ttisnil(gval(mp)));
return gval(mp);
}
@ -432,7 +435,7 @@ static TValue *newkey (lua_State *L, Table *t, const TValue *key) {
/*
** search function for integers
*/
const TValue *luaH_getnum (Table *t, int key) {
const TValue *luaH_getint (Table *t, int key) {
/* (1 <= key && key <= t->sizearray) */
if (cast(unsigned int, key-1) < cast(unsigned int, t->sizearray))
return &t->array[key-1];
@ -455,7 +458,7 @@ const TValue *luaH_getnum (Table *t, int key) {
const TValue *luaH_getstr (Table *t, TString *key) {
Node *n = hashstr(t, key);
do { /* check whether `key' is somewhere in the chain */
if (ttisstring(gkey(n)) && rawtsvalue(gkey(n)) == key)
if (ttisstring(gkey(n)) && eqstr(rawtsvalue(gkey(n)), key))
return gval(n); /* that's it */
else n = gnext(n);
} while (n);
@ -467,7 +470,7 @@ const TValue *luaH_getstr (Table *t, TString *key) {
** main search function
*/
const TValue *luaH_get (Table *t, const TValue *key) {
switch (ttype(key)) {
switch (ttypenv(key)) {
case LUA_TNIL: return luaO_nilobject;
case LUA_TSTRING: return luaH_getstr(t, rawtsvalue(key));
case LUA_TNUMBER: {
@ -475,13 +478,13 @@ const TValue *luaH_get (Table *t, const TValue *key) {
lua_Number n = nvalue(key);
lua_number2int(k, n);
if (luai_numeq(cast_num(k), nvalue(key))) /* index is int? */
return luaH_getnum(t, k); /* use specialized version */
return luaH_getint(t, k); /* use specialized version */
/* else go through */
}
default: {
Node *n = mainposition(t, key);
do { /* check whether `key' is somewhere in the chain */
if (luaO_rawequalObj(key2tval(n), key))
if (luaV_rawequalobj(gkey(n), key))
return gval(n); /* that's it */
else n = gnext(n);
} while (n);
@ -491,41 +494,29 @@ const TValue *luaH_get (Table *t, const TValue *key) {
}
/*
** beware: when using this function you probably need to check a GC
** barrier and invalidate the TM cache.
*/
TValue *luaH_set (lua_State *L, Table *t, const TValue *key) {
const TValue *p = luaH_get(t, key);
t->flags = 0;
if (p != luaO_nilobject)
return cast(TValue *, p);
else {
if (ttisnil(key)) luaG_runerror(L, "table index is nil");
else if (ttisnumber(key) && luai_numisnan(nvalue(key)))
luaG_runerror(L, "table index is NaN");
return newkey(L, t, key);
}
else return luaH_newkey(L, t, key);
}
TValue *luaH_setnum (lua_State *L, Table *t, int key) {
const TValue *p = luaH_getnum(t, key);
void luaH_setint (lua_State *L, Table *t, int key, TValue *value) {
const TValue *p = luaH_getint(t, key);
TValue *cell;
if (p != luaO_nilobject)
return cast(TValue *, p);
cell = cast(TValue *, p);
else {
TValue k;
setnvalue(&k, cast_num(key));
return newkey(L, t, &k);
}
}
TValue *luaH_setstr (lua_State *L, Table *t, TString *key) {
const TValue *p = luaH_getstr(t, key);
if (p != luaO_nilobject)
return cast(TValue *, p);
else {
TValue k;
setsvalue(L, &k, key);
return newkey(L, t, &k);
cell = luaH_newkey(L, t, &k);
}
setobj2t(L, cell, value);
}
@ -533,20 +524,20 @@ static int unbound_search (Table *t, unsigned int j) {
unsigned int i = j; /* i is zero or a present index */
j++;
/* find `i' and `j' such that i is present and j is not */
while (!ttisnil(luaH_getnum(t, j))) {
while (!ttisnil(luaH_getint(t, j))) {
i = j;
j *= 2;
if (j > cast(unsigned int, MAX_INT)) { /* overflow? */
/* table was built with bad purposes: resort to linear search */
i = 1;
while (!ttisnil(luaH_getnum(t, i))) i++;
while (!ttisnil(luaH_getint(t, i))) i++;
return i - 1;
}
}
/* now do a binary search between them */
while (j - i > 1) {
unsigned int m = (i+j)/2;
if (ttisnil(luaH_getnum(t, m))) j = m;
if (ttisnil(luaH_getint(t, m))) j = m;
else i = m;
}
return i;
@ -570,7 +561,7 @@ int luaH_getn (Table *t) {
return i;
}
/* else must find a boundary in hash part */
else if (t->node == dummynode) /* hash part is empty? */
else if (isdummy(t->node)) /* hash part is empty? */
return j; /* that is easy... */
else return unbound_search(t, j);
}
@ -583,6 +574,6 @@ Node *luaH_mainposition (const Table *t, const TValue *key) {
return mainposition(t, key);
}
int luaH_isdummy (Node *n) { return n == dummynode; }
int luaH_isdummy (Node *n) { return isdummy(n); }
#endif

126
depends/lua/src/ltablib.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: ltablib.c,v 1.38.1.3 2008/02/14 16:46:58 roberto Exp $
** $Id: ltablib.c,v 1.63 2011/11/28 17:26:30 roberto Exp $
** Library for Table Manipulation
** See Copyright Notice in lua.h
*/
@ -16,43 +16,11 @@
#include "lualib.h"
#define aux_getn(L,n) (luaL_checktype(L, n, LUA_TTABLE), luaL_getn(L, n))
static int foreachi (lua_State *L) {
int i;
int n = aux_getn(L, 1);
luaL_checktype(L, 2, LUA_TFUNCTION);
for (i=1; i <= n; i++) {
lua_pushvalue(L, 2); /* function */
lua_pushinteger(L, i); /* 1st argument */
lua_rawgeti(L, 1, i); /* 2nd argument */
lua_call(L, 2, 1);
if (!lua_isnil(L, -1))
return 1;
lua_pop(L, 1); /* remove nil result */
}
return 0;
}
static int foreach (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
luaL_checktype(L, 2, LUA_TFUNCTION);
lua_pushnil(L); /* first key */
while (lua_next(L, 1)) {
lua_pushvalue(L, 2); /* function */
lua_pushvalue(L, -3); /* key */
lua_pushvalue(L, -3); /* value */
lua_call(L, 2, 1);
if (!lua_isnil(L, -1))
return 1;
lua_pop(L, 2); /* remove value and result */
}
return 0;
}
#define aux_getn(L,n) \
(luaL_checktype(L, n, LUA_TTABLE), luaL_len(L, n))
#if defined(LUA_COMPAT_MAXN)
static int maxn (lua_State *L) {
lua_Number max = 0;
luaL_checktype(L, 1, LUA_TTABLE);
@ -67,24 +35,7 @@ static int maxn (lua_State *L) {
lua_pushnumber(L, max);
return 1;
}
static int getn (lua_State *L) {
lua_pushinteger(L, aux_getn(L, 1));
return 1;
}
static int setn (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
#ifndef luaL_setn
luaL_setn(L, 1, luaL_checkint(L, 2));
#else
luaL_error(L, LUA_QL("setn") " is obsolete");
#endif
lua_pushvalue(L, 1);
return 1;
}
static int tinsert (lua_State *L) {
@ -109,7 +60,6 @@ static int tinsert (lua_State *L) {
return luaL_error(L, "wrong number of arguments to " LUA_QL("insert"));
}
}
luaL_setn(L, 1, e); /* new size */
lua_rawseti(L, 1, pos); /* t[pos] = v */
return 0;
}
@ -120,7 +70,6 @@ static int tremove (lua_State *L) {
int pos = luaL_optint(L, 2, e);
if (!(1 <= pos && pos <= e)) /* position is outside bounds? */
return 0; /* nothing to remove */
luaL_setn(L, 1, e - 1); /* t.n = n-1 */
lua_rawgeti(L, 1, pos); /* result = t[pos] */
for ( ;pos<e; pos++) {
lua_rawgeti(L, 1, pos+1);
@ -148,7 +97,7 @@ static int tconcat (lua_State *L) {
const char *sep = luaL_optlstring(L, 2, "", &lsep);
luaL_checktype(L, 1, LUA_TTABLE);
i = luaL_optint(L, 3, 1);
last = luaL_opt(L, luaL_checkint, 4, luaL_getn(L, 1));
last = luaL_opt(L, luaL_checkint, 4, luaL_len(L, 1));
luaL_buffinit(L, &b);
for (; i < last; i++) {
addfield(L, &b, i);
@ -161,12 +110,54 @@ static int tconcat (lua_State *L) {
}
/*
** {======================================================
** Pack/unpack
** =======================================================
*/
static int pack (lua_State *L) {
int n = lua_gettop(L); /* number of elements to pack */
lua_createtable(L, n, 1); /* create result table */
lua_pushinteger(L, n);
lua_setfield(L, -2, "n"); /* t.n = number of elements */
if (n > 0) { /* at least one element? */
int i;
lua_pushvalue(L, 1);
lua_rawseti(L, -2, 1); /* insert first element */
lua_replace(L, 1); /* move table into index 1 */
for (i = n; i >= 2; i--) /* assign other elements */
lua_rawseti(L, 1, i);
}
return 1; /* return table */
}
static int unpack (lua_State *L) {
int i, e, n;
luaL_checktype(L, 1, LUA_TTABLE);
i = luaL_optint(L, 2, 1);
e = luaL_opt(L, luaL_checkint, 3, luaL_len(L, 1));
if (i > e) return 0; /* empty range */
n = e - i + 1; /* number of elements */
if (n <= 0 || !lua_checkstack(L, n)) /* n <= 0 means arith. overflow */
return luaL_error(L, "too many results to unpack");
lua_rawgeti(L, 1, i); /* push arg[i] (avoiding overflow problems) */
while (i++ < e) /* push arg[i + 1...e] */
lua_rawgeti(L, 1, i);
return n;
}
/* }====================================================== */
/*
** {======================================================
** Quicksort
** (based on `Algorithms in MODULA-3', Robert Sedgewick;
** Addison-Wesley, 1993.)
** =======================================================
*/
@ -187,7 +178,7 @@ static int sort_comp (lua_State *L, int a, int b) {
return res;
}
else /* a < b? */
return lua_lessthan(L, a, b);
return lua_compare(L, a, b, LUA_OPLT);
}
static void auxsort (lua_State *L, int l, int u) {
@ -224,12 +215,12 @@ static void auxsort (lua_State *L, int l, int u) {
for (;;) { /* invariant: a[l..i] <= P <= a[j..u] */
/* repeat ++i until a[i] >= P */
while (lua_rawgeti(L, 1, ++i), sort_comp(L, -1, -2)) {
if (i>u) luaL_error(L, "invalid order function for sorting");
if (i>=u) luaL_error(L, "invalid order function for sorting");
lua_pop(L, 1); /* remove a[i] */
}
/* repeat --j until a[j] <= P */
while (lua_rawgeti(L, 1, --j), sort_comp(L, -3, -1)) {
if (j<l) luaL_error(L, "invalid order function for sorting");
if (j<=l) luaL_error(L, "invalid order function for sorting");
lua_pop(L, 1); /* remove a[j] */
}
if (j<i) {
@ -268,20 +259,25 @@ static int sort (lua_State *L) {
static const luaL_Reg tab_funcs[] = {
{"concat", tconcat},
{"foreach", foreach},
{"foreachi", foreachi},
{"getn", getn},
#if defined(LUA_COMPAT_MAXN)
{"maxn", maxn},
#endif
{"insert", tinsert},
{"pack", pack},
{"unpack", unpack},
{"remove", tremove},
{"setn", setn},
{"sort", sort},
{NULL, NULL}
};
LUALIB_API int luaopen_table (lua_State *L) {
luaL_register(L, LUA_TABLIBNAME, tab_funcs);
LUAMOD_API int luaopen_table (lua_State *L) {
luaL_newlib(L, tab_funcs);
#if defined(LUA_COMPAT_UNPACK)
/* _G.unpack = table.unpack */
lua_getfield(L, -1, "unpack");
lua_setglobal(L, "unpack");
#endif
return 1;
}

20
depends/lua/src/ltm.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: ltm.c,v 2.8.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: ltm.c,v 2.14 2011/06/02 19:31:40 roberto Exp $
** Tag methods
** See Copyright Notice in lua.h
*/
@ -19,20 +19,22 @@
#include "ltm.h"
static const char udatatypename[] = "userdata";
const char *const luaT_typenames[] = {
"nil", "boolean", "userdata", "number",
"string", "table", "function", "userdata", "thread",
"proto", "upval"
LUAI_DDEF const char *const luaT_typenames_[LUA_TOTALTAGS] = {
"no value",
"nil", "boolean", udatatypename, "number",
"string", "table", "function", udatatypename, "thread",
"proto", "upval" /* these last two cases are used for tests only */
};
void luaT_init (lua_State *L) {
static const char *const luaT_eventname[] = { /* ORDER TM */
"__index", "__newindex",
"__gc", "__mode", "__eq",
"__gc", "__mode", "__len", "__eq",
"__add", "__sub", "__mul", "__div", "__mod",
"__pow", "__unm", "__len", "__lt", "__le",
"__pow", "__unm", "__lt", "__le",
"__concat", "__call"
};
int i;
@ -60,7 +62,7 @@ const TValue *luaT_gettm (Table *events, TMS event, TString *ename) {
const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o, TMS event) {
Table *mt;
switch (ttype(o)) {
switch (ttypenv(o)) {
case LUA_TTABLE:
mt = hvalue(o)->metatable;
break;
@ -68,7 +70,7 @@ const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o, TMS event) {
mt = uvalue(o)->metatable;
break;
default:
mt = G(L)->mt[ttype(o)];
mt = G(L)->mt[ttypenv(o)];
}
return (mt ? luaH_getstr(mt, G(L)->tmname[event]) : luaO_nilobject);
}

313
depends/lua/src/lua.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lua.c,v 1.160.1.2 2007/12/28 15:32:23 roberto Exp $
** $Id: lua.c,v 1.203 2011/12/12 16:34:03 roberto Exp $
** Lua stand-alone interpreter
** See Copyright Notice in lua.h
*/
@ -18,6 +18,72 @@
#include "lualib.h"
#if !defined(LUA_PROMPT)
#define LUA_PROMPT "> "
#define LUA_PROMPT2 ">> "
#endif
#if !defined(LUA_PROGNAME)
#define LUA_PROGNAME "lua"
#endif
#if !defined(LUA_MAXINPUT)
#define LUA_MAXINPUT 512
#endif
#if !defined(LUA_INIT)
#define LUA_INIT "LUA_INIT"
#endif
#define LUA_INITVERSION \
LUA_INIT "_" LUA_VERSION_MAJOR "_" LUA_VERSION_MINOR
/*
** lua_stdin_is_tty detects whether the standard input is a 'tty' (that
** is, whether we're running lua interactively).
*/
#if defined(LUA_USE_ISATTY)
#include <unistd.h>
#define lua_stdin_is_tty() isatty(0)
#elif defined(LUA_WIN)
#include <io.h>
#include <stdio.h>
#define lua_stdin_is_tty() _isatty(_fileno(stdin))
#else
#define lua_stdin_is_tty() 1 /* assume stdin is a tty */
#endif
/*
** lua_readline defines how to show a prompt and then read a line from
** the standard input.
** lua_saveline defines how to "save" a read line in a "history".
** lua_freeline defines how to free a line read by lua_readline.
*/
#if defined(LUA_USE_READLINE)
#include <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>
#define lua_readline(L,b,p) ((void)L, ((b)=readline(p)) != NULL)
#define lua_saveline(L,idx) \
if (lua_rawlen(L,idx) > 0) /* non-empty line? */ \
add_history(lua_tostring(L, idx)); /* add it to history */
#define lua_freeline(L,b) ((void)L, free(b))
#elif !defined(lua_readline)
#define lua_readline(L,b,p) \
((void)L, fputs(p, stdout), fflush(stdout), /* show prompt */ \
fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */
#define lua_saveline(L,idx) { (void)L; (void)idx; }
#define lua_freeline(L,b) { (void)L; (void)b; }
#endif
static lua_State *globalL = NULL;
@ -39,77 +105,87 @@ static void laction (int i) {
}
static void print_usage (void) {
fprintf(stderr,
"usage: %s [options] [script [args]].\n"
static void print_usage (const char *badoption) {
luai_writestringerror("%s: ", progname);
if (badoption[1] == 'e' || badoption[1] == 'l')
luai_writestringerror("'%s' needs argument\n", badoption);
else
luai_writestringerror("unrecognized option '%s'\n", badoption);
luai_writestringerror(
"usage: %s [options] [script [args]]\n"
"Available options are:\n"
" -e stat execute string " LUA_QL("stat") "\n"
" -l name require library " LUA_QL("name") "\n"
" -i enter interactive mode after executing " LUA_QL("script") "\n"
" -l name require library " LUA_QL("name") "\n"
" -v show version information\n"
" -E ignore environment variables\n"
" -- stop handling options\n"
" - execute stdin and stop handling options\n"
" - stop handling options and execute stdin\n"
,
progname);
fflush(stderr);
}
static void l_message (const char *pname, const char *msg) {
if (pname) fprintf(stderr, "%s: ", pname);
fprintf(stderr, "%s\n", msg);
fflush(stderr);
if (pname) luai_writestringerror("%s: ", pname);
luai_writestringerror("%s\n", msg);
}
static int report (lua_State *L, int status) {
if (status && !lua_isnil(L, -1)) {
if (status != LUA_OK && !lua_isnil(L, -1)) {
const char *msg = lua_tostring(L, -1);
if (msg == NULL) msg = "(error object is not a string)";
l_message(progname, msg);
lua_pop(L, 1);
/* force a complete garbage collection in case of errors */
lua_gc(L, LUA_GCCOLLECT, 0);
}
return status;
}
static int traceback (lua_State *L) {
if (!lua_isstring(L, 1)) /* 'message' not a string? */
return 1; /* keep it intact */
lua_getfield(L, LUA_GLOBALSINDEX, "debug");
if (!lua_istable(L, -1)) {
/* the next function is called unprotected, so it must avoid errors */
static void finalreport (lua_State *L, int status) {
if (status != LUA_OK) {
const char *msg = (lua_type(L, -1) == LUA_TSTRING) ? lua_tostring(L, -1)
: NULL;
if (msg == NULL) msg = "(error object is not a string)";
l_message(progname, msg);
lua_pop(L, 1);
return 1;
}
lua_getfield(L, -1, "traceback");
if (!lua_isfunction(L, -1)) {
lua_pop(L, 2);
return 1;
}
lua_pushvalue(L, 1); /* pass error message */
lua_pushinteger(L, 2); /* skip this function and traceback */
lua_call(L, 2, 1); /* call debug.traceback */
static int traceback (lua_State *L) {
const char *msg = lua_tostring(L, 1);
if (msg)
luaL_traceback(L, L, msg, 1);
else if (!lua_isnoneornil(L, 1)) { /* is there an error object? */
if (!luaL_callmeta(L, 1, "__tostring")) /* try its 'tostring' metamethod */
lua_pushliteral(L, "(no error message)");
}
return 1;
}
static int docall (lua_State *L, int narg, int clear) {
static int docall (lua_State *L, int narg, int nres) {
int status;
int base = lua_gettop(L) - narg; /* function index */
lua_pushcfunction(L, traceback); /* push traceback function */
lua_insert(L, base); /* put it under chunk and args */
globalL = L; /* to be available to 'laction' */
signal(SIGINT, laction);
status = lua_pcall(L, narg, (clear ? 0 : LUA_MULTRET), base);
status = lua_pcall(L, narg, nres, base);
signal(SIGINT, SIG_DFL);
lua_remove(L, base); /* remove traceback function */
/* force a complete garbage collection in case of errors */
if (status != 0) lua_gc(L, LUA_GCCOLLECT, 0);
return status;
}
static void print_version (void) {
l_message(NULL, LUA_RELEASE " " LUA_COPYRIGHT);
luai_writestring(LUA_COPYRIGHT, strlen(LUA_COPYRIGHT));
luai_writeline();
}
@ -132,40 +208,53 @@ static int getargs (lua_State *L, char **argv, int n) {
static int dofile (lua_State *L, const char *name) {
int status = luaL_loadfile(L, name) || docall(L, 0, 1);
int status = luaL_loadfile(L, name);
if (status == LUA_OK) status = docall(L, 0, 0);
return report(L, status);
}
static int dostring (lua_State *L, const char *s, const char *name) {
int status = luaL_loadbuffer(L, s, strlen(s), name) || docall(L, 0, 1);
int status = luaL_loadbuffer(L, s, strlen(s), name);
if (status == LUA_OK) status = docall(L, 0, 0);
return report(L, status);
}
static int dolibrary (lua_State *L, const char *name) {
lua_getglobal(L, "require");
int status;
lua_pushglobaltable(L);
lua_getfield(L, -1, "require");
lua_pushstring(L, name);
return report(L, docall(L, 1, 1));
status = docall(L, 1, 1);
if (status == LUA_OK) {
lua_setfield(L, -2, name); /* global[name] = require return */
lua_pop(L, 1); /* remove global table */
}
else
lua_remove(L, -2); /* remove global table (below error msg.) */
return report(L, status);
}
static const char *get_prompt (lua_State *L, int firstline) {
const char *p;
lua_getfield(L, LUA_GLOBALSINDEX, firstline ? "_PROMPT" : "_PROMPT2");
lua_getglobal(L, firstline ? "_PROMPT" : "_PROMPT2");
p = lua_tostring(L, -1);
if (p == NULL) p = (firstline ? LUA_PROMPT : LUA_PROMPT2);
lua_pop(L, 1); /* remove global */
return p;
}
/* mark in error messages for incomplete statements */
#define EOFMARK "<eof>"
#define marklen (sizeof(EOFMARK)/sizeof(char) - 1)
static int incomplete (lua_State *L, int status) {
if (status == LUA_ERRSYNTAX) {
size_t lmsg;
const char *msg = lua_tolstring(L, -1, &lmsg);
const char *tp = msg + lmsg - (sizeof(LUA_QL("<eof>")) - 1);
if (strstr(msg, LUA_QL("<eof>")) == tp) {
if (lmsg >= marklen && strcmp(msg + lmsg - marklen, EOFMARK) == 0) {
lua_pop(L, 1);
return 1;
}
@ -199,7 +288,9 @@ static int loadline (lua_State *L) {
if (!pushline(L, 1))
return -1; /* no input */
for (;;) { /* repeat until gets a complete line */
status = luaL_loadbuffer(L, lua_tostring(L, 1), lua_strlen(L, 1), "=stdin");
size_t l;
const char *line = lua_tolstring(L, 1, &l);
status = luaL_loadbuffer(L, line, l, "=stdin");
if (!incomplete(L, status)) break; /* cannot try to add lines? */
if (!pushline(L, 0)) /* no more input? */
return -1;
@ -218,20 +309,20 @@ static void dotty (lua_State *L) {
const char *oldprogname = progname;
progname = NULL;
while ((status = loadline(L)) != -1) {
if (status == 0) status = docall(L, 0, 0);
if (status == LUA_OK) status = docall(L, 0, LUA_MULTRET);
report(L, status);
if (status == 0 && lua_gettop(L) > 0) { /* any result to print? */
if (status == LUA_OK && lua_gettop(L) > 0) { /* any result to print? */
luaL_checkstack(L, LUA_MINSTACK, "too many results to print");
lua_getglobal(L, "print");
lua_insert(L, 1);
if (lua_pcall(L, lua_gettop(L)-1, 0, 0) != 0)
if (lua_pcall(L, lua_gettop(L)-1, 0, 0) != LUA_OK)
l_message(progname, lua_pushfstring(L,
"error calling " LUA_QL("print") " (%s)",
lua_tostring(L, -1)));
}
}
lua_settop(L, 0); /* clear stack */
fputs("\n", stdout);
fflush(stdout);
luai_writeline();
progname = oldprogname;
}
@ -246,8 +337,8 @@ static int handle_script (lua_State *L, char **argv, int n) {
fname = NULL; /* stdin */
status = luaL_loadfile(L, fname);
lua_insert(L, -(narg+1));
if (status == 0)
status = docall(L, narg, 0);
if (status == LUA_OK)
status = docall(L, narg, LUA_MULTRET);
else
lua_pop(L, narg);
return report(L, status);
@ -255,36 +346,50 @@ static int handle_script (lua_State *L, char **argv, int n) {
/* check that argument has no extra characters at the end */
#define notail(x) {if ((x)[2] != '\0') return -1;}
#define noextrachars(x) {if ((x)[2] != '\0') return -1;}
/* indices of various argument indicators in array args */
#define has_i 0 /* -i */
#define has_v 1 /* -v */
#define has_e 2 /* -e */
#define has_E 3 /* -E */
#define num_has 4 /* number of 'has_*' */
static int collectargs (char **argv, int *pi, int *pv, int *pe) {
static int collectargs (char **argv, int *args) {
int i;
for (i = 1; argv[i] != NULL; i++) {
if (argv[i][0] != '-') /* not an option? */
return i;
switch (argv[i][1]) { /* option */
case '-':
notail(argv[i]);
noextrachars(argv[i]);
return (argv[i+1] != NULL ? i+1 : 0);
case '\0':
return i;
case 'E':
args[has_E] = 1;
break;
case 'i':
notail(argv[i]);
*pi = 1; /* go through */
noextrachars(argv[i]);
args[has_i] = 1; /* go through */
case 'v':
notail(argv[i]);
*pv = 1;
noextrachars(argv[i]);
args[has_v] = 1;
break;
case 'e':
*pe = 1; /* go through */
case 'l':
if (argv[i][2] == '\0') {
i++;
if (argv[i] == NULL) return -1;
args[has_e] = 1; /* go through */
case 'l': /* both options need an argument */
if (argv[i][2] == '\0') { /* no concatenated argument? */
i++; /* try next 'argv' */
if (argv[i] == NULL || argv[i][0] == '-')
return -(i - 1); /* no next argument or it is another option */
}
break;
default: return -1; /* invalid option */
default: /* invalid option; return its index... */
return -i; /* ...as a negative value */
}
}
return 0;
@ -294,99 +399,103 @@ static int collectargs (char **argv, int *pi, int *pv, int *pe) {
static int runargs (lua_State *L, char **argv, int n) {
int i;
for (i = 1; i < n; i++) {
if (argv[i] == NULL) continue;
lua_assert(argv[i][0] == '-');
switch (argv[i][1]) { /* option */
case 'e': {
const char *chunk = argv[i] + 2;
if (*chunk == '\0') chunk = argv[++i];
lua_assert(chunk != NULL);
if (dostring(L, chunk, "=(command line)") != 0)
return 1;
if (dostring(L, chunk, "=(command line)") != LUA_OK)
return 0;
break;
}
case 'l': {
const char *filename = argv[i] + 2;
if (*filename == '\0') filename = argv[++i];
lua_assert(filename != NULL);
if (dolibrary(L, filename))
return 1; /* stop if file fails */
if (dolibrary(L, filename) != LUA_OK)
return 0; /* stop if file fails */
break;
}
default: break;
}
}
return 0;
return 1;
}
static int handle_luainit (lua_State *L) {
const char *init = getenv(LUA_INIT);
if (init == NULL) return 0; /* status OK */
const char *name = "=" LUA_INITVERSION;
const char *init = getenv(name + 1);
if (init == NULL) {
name = "=" LUA_INIT;
init = getenv(name + 1); /* try alternative name */
}
if (init == NULL) return LUA_OK;
else if (init[0] == '@')
return dofile(L, init+1);
else
return dostring(L, init, "=" LUA_INIT);
return dostring(L, init, name);
}
struct Smain {
int argc;
char **argv;
int status;
};
static int pmain (lua_State *L) {
struct Smain *s = (struct Smain *)lua_touserdata(L, 1);
char **argv = s->argv;
int argc = (int)lua_tointeger(L, 1);
char **argv = (char **)lua_touserdata(L, 2);
int script;
int has_i = 0, has_v = 0, has_e = 0;
globalL = L;
int args[num_has];
args[has_i] = args[has_v] = args[has_e] = args[has_E] = 0;
if (argv[0] && argv[0][0]) progname = argv[0];
script = collectargs(argv, args);
if (script < 0) { /* invalid arg? */
print_usage(argv[-script]);
return 0;
}
if (args[has_v]) print_version();
if (args[has_E]) { /* option '-E'? */
lua_pushboolean(L, 1); /* signal for libraries to ignore env. vars. */
lua_setfield(L, LUA_REGISTRYINDEX, "LUA_NOENV");
}
/* open standard libraries */
luaL_checkversion(L);
lua_gc(L, LUA_GCSTOP, 0); /* stop collector during initialization */
luaL_openlibs(L); /* open libraries */
lua_gc(L, LUA_GCRESTART, 0);
s->status = handle_luainit(L);
if (s->status != 0) return 0;
script = collectargs(argv, &has_i, &has_v, &has_e);
if (script < 0) { /* invalid args? */
print_usage();
s->status = 1;
return 0;
}
if (has_v) print_version();
s->status = runargs(L, argv, (script > 0) ? script : s->argc);
if (s->status != 0) return 0;
if (script)
s->status = handle_script(L, argv, script);
if (s->status != 0) return 0;
if (has_i)
if (!args[has_E] && handle_luainit(L) != LUA_OK)
return 0; /* error running LUA_INIT */
/* execute arguments -e and -l */
if (!runargs(L, argv, (script > 0) ? script : argc)) return 0;
/* execute main script (if there is one) */
if (script && handle_script(L, argv, script) != LUA_OK) return 0;
if (args[has_i]) /* -i option? */
dotty(L);
else if (script == 0 && !has_e && !has_v) {
else if (script == 0 && !args[has_e] && !args[has_v]) { /* no arguments? */
if (lua_stdin_is_tty()) {
print_version();
dotty(L);
}
else dofile(L, NULL); /* executes stdin as a file */
}
return 0;
lua_pushboolean(L, 1); /* signal no errors */
return 1;
}
int main (int argc, char **argv) {
int status;
struct Smain s;
lua_State *L = lua_open(); /* create state */
int status, result;
lua_State *L = luaL_newstate(); /* create state */
if (L == NULL) {
l_message(argv[0], "cannot create state: not enough memory");
return EXIT_FAILURE;
}
s.argc = argc;
s.argv = argv;
status = lua_cpcall(L, &pmain, &s);
report(L, status);
/* call 'pmain' in protected mode */
lua_pushcfunction(L, &pmain);
lua_pushinteger(L, argc); /* 1st argument */
lua_pushlightuserdata(L, argv); /* 2nd argument */
status = lua_pcall(L, 2, 1, 0);
result = lua_toboolean(L, -1); /* get result */
finalreport(L, status);
lua_close(L);
return (status || s.status) ? EXIT_FAILURE : EXIT_SUCCESS;
return (result && status == LUA_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
}

318
depends/lua/src/luac.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: luac.c,v 1.54 2006/06/02 17:37:11 lhf Exp $
** $Id: luac.c,v 1.69 2011/11/29 17:46:33 lhf Exp $
** Lua compiler (saves bytecodes to files; also list bytecodes)
** See Copyright Notice in lua.h
*/
@ -15,14 +15,13 @@
#include "lua.h"
#include "lauxlib.h"
#include "ldo.h"
#include "lfunc.h"
#include "lmem.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lstring.h"
#include "lstate.h"
#include "lundump.h"
static void PrintFunction(const Proto* f, int full);
#define luaU_print PrintFunction
#define PROGNAME "luac" /* default program name */
#define OUTPUT PROGNAME ".out" /* default output file */
@ -52,16 +51,16 @@ static void usage(const char* message)
else
fprintf(stderr,"%s: %s\n",progname,message);
fprintf(stderr,
"usage: %s [options] [filenames].\n"
"usage: %s [options] [filenames]\n"
"Available options are:\n"
" - process stdin\n"
" -l list\n"
" -l list (use -l -l for full listing)\n"
" -o name output to file " LUA_QL("name") " (default is \"%s\")\n"
" -p parse only\n"
" -s strip debug information\n"
" -v show version information\n"
" -- stop handling options\n",
progname,Output);
" -- stop handling options\n"
" - stop handling options and process stdin\n"
,progname,Output);
exit(EXIT_FAILURE);
}
@ -89,7 +88,8 @@ static int doargs(int argc, char* argv[])
else if (IS("-o")) /* output file */
{
output=argv[++i];
if (output==NULL || *output==0) usage(LUA_QL("-o") " needs argument");
if (output==NULL || *output==0 || (*output=='-' && output[1]!=0))
usage(LUA_QL("-o") " needs argument");
if (IS("-")) output=NULL;
}
else if (IS("-p")) /* parse only */
@ -108,13 +108,30 @@ static int doargs(int argc, char* argv[])
}
if (version)
{
printf("%s %s\n",LUA_RELEASE,LUA_COPYRIGHT);
printf("%s\n",LUA_COPYRIGHT);
if (version==argc-1) exit(EXIT_SUCCESS);
}
return i;
}
#define toproto(L,i) (clvalue(L->top+(i))->l.p)
#define FUNCTION "(function()end)();"
static const char* reader(lua_State *L, void *ud, size_t *size)
{
UNUSED(L);
if ((*(int*)ud)--)
{
*size=sizeof(FUNCTION)-1;
return FUNCTION;
}
else
{
*size=0;
return NULL;
}
}
#define toproto(L,i) getproto(L->top+(i))
static const Proto* combine(lua_State* L, int n)
{
@ -122,24 +139,16 @@ static const Proto* combine(lua_State* L, int n)
return toproto(L,-1);
else
{
int i,pc;
Proto* f=luaF_newproto(L);
setptvalue2s(L,L->top,f); incr_top(L);
f->source=luaS_newliteral(L,"=(" PROGNAME ")");
f->maxstacksize=1;
pc=2*n+1;
f->code=luaM_newvector(L,pc,Instruction);
f->sizecode=pc;
f->p=luaM_newvector(L,n,Proto*);
f->sizep=n;
pc=0;
Proto* f;
int i=n;
if (lua_load(L,reader,&i,"=(" PROGNAME ")",NULL)!=LUA_OK) fatal(lua_tostring(L,-1));
f=toproto(L,-1);
for (i=0; i<n; i++)
{
f->p[i]=toproto(L,i-n-1);
f->code[pc++]=CREATE_ABx(OP_CLOSURE,0,i);
f->code[pc++]=CREATE_ABC(OP_CALL,0,1,1);
if (f->p[i]->sizeupvalues>0) f->p[i]->upvalues[0].instack=0;
}
f->code[pc++]=CREATE_ABC(OP_RETURN,0,1,0);
f->sizelineinfo=0;
return f;
}
}
@ -150,23 +159,17 @@ static int writer(lua_State* L, const void* p, size_t size, void* u)
return (fwrite(p,size,1,(FILE*)u)!=1) && (size!=0);
}
struct Smain {
int argc;
char** argv;
};
static int pmain(lua_State* L)
{
struct Smain* s = (struct Smain*)lua_touserdata(L, 1);
int argc=s->argc;
char** argv=s->argv;
int argc=(int)lua_tointeger(L,1);
char** argv=(char**)lua_touserdata(L,2);
const Proto* f;
int i;
if (!lua_checkstack(L,argc)) fatal("too many input files");
for (i=0; i<argc; i++)
{
const char* filename=IS("-") ? NULL : argv[i];
if (luaL_loadfile(L,filename)!=0) fatal(lua_tostring(L,-1));
if (luaL_loadfile(L,filename)!=LUA_OK) fatal(lua_tostring(L,-1));
}
f=combine(L,argc);
if (listing) luaU_print(f,listing>1);
@ -186,15 +189,244 @@ static int pmain(lua_State* L)
int main(int argc, char* argv[])
{
lua_State* L;
struct Smain s;
int i=doargs(argc,argv);
argc-=i; argv+=i;
if (argc<=0) usage("no input files given");
L=lua_open();
if (L==NULL) fatal("not enough memory for state");
s.argc=argc;
s.argv=argv;
if (lua_cpcall(L,pmain,&s)!=0) fatal(lua_tostring(L,-1));
L=luaL_newstate();
if (L==NULL) fatal("cannot create state: not enough memory");
lua_pushcfunction(L,&pmain);
lua_pushinteger(L,argc);
lua_pushlightuserdata(L,argv);
if (lua_pcall(L,2,0,0)!=LUA_OK) fatal(lua_tostring(L,-1));
lua_close(L);
return EXIT_SUCCESS;
}
/*
** $Id: print.c,v 1.68 2011/09/30 10:21:20 lhf Exp $
** print bytecodes
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <stdio.h>
#define luac_c
#define LUA_CORE
#include "ldebug.h"
#include "lobject.h"
#include "lopcodes.h"
#define VOID(p) ((const void*)(p))
static void PrintString(const TString* ts)
{
const char* s=getstr(ts);
size_t i,n=ts->tsv.len;
printf("%c",'"');
for (i=0; i<n; i++)
{
int c=(int)(unsigned char)s[i];
switch (c)
{
case '"': printf("\\\""); break;
case '\\': printf("\\\\"); break;
case '\a': printf("\\a"); break;
case '\b': printf("\\b"); break;
case '\f': printf("\\f"); break;
case '\n': printf("\\n"); break;
case '\r': printf("\\r"); break;
case '\t': printf("\\t"); break;
case '\v': printf("\\v"); break;
default: if (isprint(c))
printf("%c",c);
else
printf("\\%03d",c);
}
}
printf("%c",'"');
}
static void PrintConstant(const Proto* f, int i)
{
const TValue* o=&f->k[i];
switch (ttype(o))
{
case LUA_TNIL:
printf("nil");
break;
case LUA_TBOOLEAN:
printf(bvalue(o) ? "true" : "false");
break;
case LUA_TNUMBER:
printf(LUA_NUMBER_FMT,nvalue(o));
break;
case LUA_TSTRING:
PrintString(rawtsvalue(o));
break;
default: /* cannot happen */
printf("? type=%d",ttype(o));
break;
}
}
#define UPVALNAME(x) ((f->upvalues[x].name) ? getstr(f->upvalues[x].name) : "-")
#define MYK(x) (-1-(x))
static void PrintCode(const Proto* f)
{
const Instruction* code=f->code;
int pc,n=f->sizecode;
for (pc=0; pc<n; pc++)
{
Instruction i=code[pc];
OpCode o=GET_OPCODE(i);
int a=GETARG_A(i);
int b=GETARG_B(i);
int c=GETARG_C(i);
int ax=GETARG_Ax(i);
int bx=GETARG_Bx(i);
int sbx=GETARG_sBx(i);
int line=getfuncline(f,pc);
printf("\t%d\t",pc+1);
if (line>0) printf("[%d]\t",line); else printf("[-]\t");
printf("%-9s\t",luaP_opnames[o]);
switch (getOpMode(o))
{
case iABC:
printf("%d",a);
if (getBMode(o)!=OpArgN) printf(" %d",ISK(b) ? (MYK(INDEXK(b))) : b);
if (getCMode(o)!=OpArgN) printf(" %d",ISK(c) ? (MYK(INDEXK(c))) : c);
break;
case iABx:
printf("%d",a);
if (getBMode(o)==OpArgK) printf(" %d",MYK(bx));
if (getBMode(o)==OpArgU) printf(" %d",bx);
break;
case iAsBx:
printf("%d %d",a,sbx);
break;
case iAx:
printf("%d",MYK(ax));
break;
}
switch (o)
{
case OP_LOADK:
printf("\t; "); PrintConstant(f,bx);
break;
case OP_GETUPVAL:
case OP_SETUPVAL:
printf("\t; %s",UPVALNAME(b));
break;
case OP_GETTABUP:
printf("\t; %s",UPVALNAME(b));
if (ISK(c)) { printf(" "); PrintConstant(f,INDEXK(c)); }
break;
case OP_SETTABUP:
printf("\t; %s",UPVALNAME(a));
if (ISK(b)) { printf(" "); PrintConstant(f,INDEXK(b)); }
if (ISK(c)) { printf(" "); PrintConstant(f,INDEXK(c)); }
break;
case OP_GETTABLE:
case OP_SELF:
if (ISK(c)) { printf("\t; "); PrintConstant(f,INDEXK(c)); }
break;
case OP_SETTABLE:
case OP_ADD:
case OP_SUB:
case OP_MUL:
case OP_DIV:
case OP_POW:
case OP_EQ:
case OP_LT:
case OP_LE:
if (ISK(b) || ISK(c))
{
printf("\t; ");
if (ISK(b)) PrintConstant(f,INDEXK(b)); else printf("-");
printf(" ");
if (ISK(c)) PrintConstant(f,INDEXK(c)); else printf("-");
}
break;
case OP_JMP:
case OP_FORLOOP:
case OP_FORPREP:
case OP_TFORLOOP:
printf("\t; to %d",sbx+pc+2);
break;
case OP_CLOSURE:
printf("\t; %p",VOID(f->p[bx]));
break;
case OP_SETLIST:
if (c==0) printf("\t; %d",(int)code[++pc]); else printf("\t; %d",c);
break;
case OP_EXTRAARG:
printf("\t; "); PrintConstant(f,ax);
break;
default:
break;
}
printf("\n");
}
}
#define SS(x) ((x==1)?"":"s")
#define S(x) (int)(x),SS(x)
static void PrintHeader(const Proto* f)
{
const char* s=f->source ? getstr(f->source) : "=?";
if (*s=='@' || *s=='=')
s++;
else if (*s==LUA_SIGNATURE[0])
s="(bstring)";
else
s="(string)";
printf("\n%s <%s:%d,%d> (%d instruction%s at %p)\n",
(f->linedefined==0)?"main":"function",s,
f->linedefined,f->lastlinedefined,
S(f->sizecode),VOID(f));
printf("%d%s param%s, %d slot%s, %d upvalue%s, ",
(int)(f->numparams),f->is_vararg?"+":"",SS(f->numparams),
S(f->maxstacksize),S(f->sizeupvalues));
printf("%d local%s, %d constant%s, %d function%s\n",
S(f->sizelocvars),S(f->sizek),S(f->sizep));
}
static void PrintDebug(const Proto* f)
{
int i,n;
n=f->sizek;
printf("constants (%d) for %p:\n",n,VOID(f));
for (i=0; i<n; i++)
{
printf("\t%d\t",i+1);
PrintConstant(f,i);
printf("\n");
}
n=f->sizelocvars;
printf("locals (%d) for %p:\n",n,VOID(f));
for (i=0; i<n; i++)
{
printf("\t%d\t%s\t%d\t%d\n",
i,getstr(f->locvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1);
}
n=f->sizeupvalues;
printf("upvalues (%d) for %p:\n",n,VOID(f));
for (i=0; i<n; i++)
{
printf("\t%d\t%s\t%d\t%d\n",
i,UPVALNAME(i),f->upvalues[i].instack,f->upvalues[i].idx);
}
}
static void PrintFunction(const Proto* f, int full)
{
int i,n=f->sizep;
PrintHeader(f);
PrintCode(f);
if (full) PrintDebug(f);
for (i=0; i<n; i++) PrintFunction(f->p[i],full);
}

113
depends/lua/src/lundump.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lundump.c,v 2.7.1.4 2008/04/04 19:51:41 roberto Exp $
** $Id: lundump.c,v 1.71 2011/12/07 10:39:12 lhf Exp $
** load precompiled Lua chunks
** See Copyright Notice in lua.h
*/
@ -27,28 +27,24 @@ typedef struct {
const char* name;
} LoadState;
#ifdef LUAC_TRUST_BINARIES
#define IF(c,s)
#define error(S,s)
#else
#define IF(c,s) if (c) error(S,s)
static void error(LoadState* S, const char* why)
{
luaO_pushfstring(S->L,"%s: %s in precompiled chunk",S->name,why);
luaO_pushfstring(S->L,"%s: %s precompiled chunk",S->name,why);
luaD_throw(S->L,LUA_ERRSYNTAX);
}
#endif
#define LoadMem(S,b,n,size) LoadBlock(S,b,(n)*(size))
#define LoadByte(S) (lu_byte)LoadChar(S)
#define LoadVar(S,x) LoadMem(S,&x,1,sizeof(x))
#define LoadVector(S,b,n,size) LoadMem(S,b,n,size)
#if !defined(luai_verifycode)
#define luai_verifycode(L,b,f) (f)
#endif
static void LoadBlock(LoadState* S, void* b, size_t size)
{
size_t r=luaZ_read(S->Z,b,size);
IF (r!=0, "unexpected end");
if (luaZ_read(S->Z,b,size)!=0) error(S,"truncated");
}
static int LoadChar(LoadState* S)
@ -62,7 +58,7 @@ static int LoadInt(LoadState* S)
{
int x;
LoadVar(S,x);
IF (x<0, "bad integer");
if (x<0) error(S,"corrupted");
return x;
}
@ -82,7 +78,7 @@ static TString* LoadString(LoadState* S)
else
{
char* s=luaZ_openspace(S->L,S->b,size);
LoadBlock(S,s,size);
LoadBlock(S,s,size*sizeof(char));
return luaS_newlstr(S->L,s,size-1); /* remove trailing '\0' */
}
}
@ -95,7 +91,7 @@ static void LoadCode(LoadState* S, Proto* f)
LoadVector(S,f->code,n,sizeof(Instruction));
}
static Proto* LoadFunction(LoadState* S, TString* p);
static Proto* LoadFunction(LoadState* S);
static void LoadConstants(LoadState* S, Proto* f)
{
@ -114,7 +110,7 @@ static void LoadConstants(LoadState* S, Proto* f)
setnilvalue(o);
break;
case LUA_TBOOLEAN:
setbvalue(o,LoadChar(S)!=0);
setbvalue(o,LoadChar(S));
break;
case LUA_TNUMBER:
setnvalue(o,LoadNumber(S));
@ -122,21 +118,33 @@ static void LoadConstants(LoadState* S, Proto* f)
case LUA_TSTRING:
setsvalue2n(S->L,o,LoadString(S));
break;
default:
error(S,"bad constant");
break;
}
}
n=LoadInt(S);
f->p=luaM_newvector(S->L,n,Proto*);
f->sizep=n;
for (i=0; i<n; i++) f->p[i]=NULL;
for (i=0; i<n; i++) f->p[i]=LoadFunction(S,f->source);
for (i=0; i<n; i++) f->p[i]=LoadFunction(S);
}
static void LoadUpvalues(LoadState* S, Proto* f)
{
int i,n;
n=LoadInt(S);
f->upvalues=luaM_newvector(S->L,n,Upvaldesc);
f->sizeupvalues=n;
for (i=0; i<n; i++) f->upvalues[i].name=NULL;
for (i=0; i<n; i++)
{
f->upvalues[i].instack=LoadByte(S);
f->upvalues[i].idx=LoadByte(S);
}
}
static void LoadDebug(LoadState* S, Proto* f)
{
int i,n;
f->source=LoadString(S);
n=LoadInt(S);
f->lineinfo=luaM_newvector(S->L,n,int);
f->sizelineinfo=n;
@ -152,41 +160,43 @@ static void LoadDebug(LoadState* S, Proto* f)
f->locvars[i].endpc=LoadInt(S);
}
n=LoadInt(S);
f->upvalues=luaM_newvector(S->L,n,TString*);
f->sizeupvalues=n;
for (i=0; i<n; i++) f->upvalues[i]=NULL;
for (i=0; i<n; i++) f->upvalues[i]=LoadString(S);
for (i=0; i<n; i++) f->upvalues[i].name=LoadString(S);
}
static Proto* LoadFunction(LoadState* S, TString* p)
static Proto* LoadFunction(LoadState* S)
{
Proto* f;
if (++S->L->nCcalls > LUAI_MAXCCALLS) error(S,"code too deep");
f=luaF_newproto(S->L);
Proto* f=luaF_newproto(S->L);
setptvalue2s(S->L,S->L->top,f); incr_top(S->L);
f->source=LoadString(S); if (f->source==NULL) f->source=p;
f->linedefined=LoadInt(S);
f->lastlinedefined=LoadInt(S);
f->nups=LoadByte(S);
f->numparams=LoadByte(S);
f->is_vararg=LoadByte(S);
f->maxstacksize=LoadByte(S);
LoadCode(S,f);
LoadConstants(S,f);
LoadUpvalues(S,f);
LoadDebug(S,f);
IF (!luaG_checkcode(f), "bad code");
S->L->top--;
S->L->nCcalls--;
return f;
}
/* the code below must be consistent with the code in luaU_header */
#define N0 LUAC_HEADERSIZE
#define N1 (sizeof(LUA_SIGNATURE)-sizeof(char))
#define N2 N1+2
#define N3 N2+6
static void LoadHeader(LoadState* S)
{
char h[LUAC_HEADERSIZE];
char s[LUAC_HEADERSIZE];
lu_byte h[LUAC_HEADERSIZE];
lu_byte s[LUAC_HEADERSIZE];
luaU_header(h);
LoadBlock(S,s,LUAC_HEADERSIZE);
IF (memcmp(h,s,LUAC_HEADERSIZE)!=0, "bad header");
memcpy(s,h,sizeof(char)); /* first char already read */
LoadBlock(S,s+sizeof(char),LUAC_HEADERSIZE-sizeof(char));
if (memcmp(h,s,N0)==0) return;
if (memcmp(h,s,N1)!=0) error(S,"not a");
if (memcmp(h,s,N2)!=0) error(S,"version mismatch in");
if (memcmp(h,s,N3)!=0) error(S,"incompatible"); else error(S,"corrupted");
}
/*
@ -205,23 +215,30 @@ Proto* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name)
S.Z=Z;
S.b=buff;
LoadHeader(&S);
return LoadFunction(&S,luaS_newliteral(L,"=?"));
return luai_verifycode(L,buff,LoadFunction(&S));
}
#define MYINT(s) (s[0]-'0')
#define VERSION MYINT(LUA_VERSION_MAJOR)*16+MYINT(LUA_VERSION_MINOR)
#define FORMAT 0 /* this is the official format */
/*
* make header
* make header for precompiled chunks
* if you change the code below be sure to update LoadHeader and FORMAT above
* and LUAC_HEADERSIZE in lundump.h
*/
void luaU_header (char* h)
void luaU_header (lu_byte* h)
{
int x=1;
memcpy(h,LUA_SIGNATURE,sizeof(LUA_SIGNATURE)-1);
h+=sizeof(LUA_SIGNATURE)-1;
*h++=(char)LUAC_VERSION;
*h++=(char)LUAC_FORMAT;
*h++=(char)*(char*)&x; /* endianness */
*h++=(char)sizeof(int);
*h++=(char)sizeof(size_t);
*h++=(char)sizeof(Instruction);
*h++=(char)sizeof(lua_Number);
*h++=(char)(((lua_Number)0.5)==0); /* is lua_Number integral? */
memcpy(h,LUA_SIGNATURE,sizeof(LUA_SIGNATURE)-sizeof(char));
h+=sizeof(LUA_SIGNATURE)-sizeof(char);
*h++=cast_byte(VERSION);
*h++=cast_byte(FORMAT);
*h++=cast_byte(*(char*)&x); /* endianness */
*h++=cast_byte(sizeof(int));
*h++=cast_byte(sizeof(size_t));
*h++=cast_byte(sizeof(Instruction));
*h++=cast_byte(sizeof(lua_Number));
*h++=cast_byte(((lua_Number)0.5)==0); /* is lua_Number integral? */
memcpy(h,LUAC_TAIL,sizeof(LUAC_TAIL)-sizeof(char));
}

891
depends/lua/src/lvm.c
View File

File diff suppressed because it is too large Load Diff

32
depends/lua/src/lzio.c
Unescape Escape View File

@ -1,5 +1,5 @@
/*
** $Id: lzio.c,v 1.31.1.1 2007/12/27 13:02:25 roberto Exp $
** $Id: lzio.c,v 1.34 2011/07/15 12:35:32 roberto Exp $
** a generic input stream interface
** See Copyright Notice in lua.h
*/
@ -25,23 +25,11 @@ int luaZ_fill (ZIO *z) {
lua_unlock(L);
buff = z->reader(L, z->data, &size);
lua_lock(L);
if (buff == NULL || size == 0) return EOZ;
z->n = size - 1;
z->p = buff;
return char2int(*(z->p++));
}
int luaZ_lookahead (ZIO *z) {
if (z->n == 0) {
if (luaZ_fill(z) == EOZ)
if (buff == NULL || size == 0)
return EOZ;
else {
z->n++; /* luaZ_fill removed first byte; put back it */
z->p--;
}
}
return char2int(*z->p);
z->n = size - 1; /* discount char being returned */
z->p = buff;
return cast_uchar(*(z->p++));
}
@ -58,8 +46,14 @@ void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader, void *data) {
size_t luaZ_read (ZIO *z, void *b, size_t n) {
while (n) {
size_t m;
if (luaZ_lookahead(z) == EOZ)
return n; /* return number of missing bytes */
if (z->n == 0) { /* no bytes in buffer? */
if (luaZ_fill(z) == EOZ) /* try to read more */
return n; /* no more input; return number of missing bytes */
else {
z->n++; /* luaZ_fill consumed first byte; put it back */
z->p--;
}
}
m = (n <= z->n) ? n : z->n; /* min. between n and z->n */
memcpy(b, z->p, m);
z->n -= m;

227
depends/lua/src/print.c
Unescape Escape View File

@ -1,227 +0,0 @@
/*
** $Id: print.c,v 1.55a 2006/05/31 13:30:05 lhf Exp $
** print bytecodes
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <stdio.h>
#define luac_c
#define LUA_CORE
#include "ldebug.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lundump.h"
#define PrintFunction luaU_print
#define Sizeof(x) ((int)sizeof(x))
#define VOID(p) ((const void*)(p))
static void PrintString(const TString* ts)
{
const char* s=getstr(ts);
size_t i,n=ts->tsv.len;
putchar('"');
for (i=0; i<n; i++)
{
int c=s[i];
switch (c)
{
case '"': printf("\\\""); break;
case '\\': printf("\\\\"); break;
case '\a': printf("\\a"); break;
case '\b': printf("\\b"); break;
case '\f': printf("\\f"); break;
case '\n': printf("\\n"); break;
case '\r': printf("\\r"); break;
case '\t': printf("\\t"); break;
case '\v': printf("\\v"); break;
default: if (isprint((unsigned char)c))
putchar(c);
else
printf("\\%03u",(unsigned char)c);
}
}
putchar('"');
}
static void PrintConstant(const Proto* f, int i)
{
const TValue* o=&f->k[i];
switch (ttype(o))
{
case LUA_TNIL:
printf("nil");
break;
case LUA_TBOOLEAN:
printf(bvalue(o) ? "true" : "false");
break;
case LUA_TNUMBER:
printf(LUA_NUMBER_FMT,nvalue(o));
break;
case LUA_TSTRING:
PrintString(rawtsvalue(o));
break;
default: /* cannot happen */
printf("? type=%d",ttype(o));
break;
}
}
static void PrintCode(const Proto* f)
{
const Instruction* code=f->code;
int pc,n=f->sizecode;
for (pc=0; pc<n; pc++)
{
Instruction i=code[pc];
OpCode o=GET_OPCODE(i);
int a=GETARG_A(i);
int b=GETARG_B(i);
int c=GETARG_C(i);
int bx=GETARG_Bx(i);
int sbx=GETARG_sBx(i);
int line=getline(f,pc);
printf("\t%d\t",pc+1);
if (line>0) printf("[%d]\t",line); else printf("[-]\t");
printf("%-9s\t",luaP_opnames[o]);
switch (getOpMode(o))
{
case iABC:
printf("%d",a);
if (getBMode(o)!=OpArgN) printf(" %d",ISK(b) ? (-1-INDEXK(b)) : b);
if (getCMode(o)!=OpArgN) printf(" %d",ISK(c) ? (-1-INDEXK(c)) : c);
break;
case iABx:
if (getBMode(o)==OpArgK) printf("%d %d",a,-1-bx); else printf("%d %d",a,bx);
break;
case iAsBx:
if (o==OP_JMP) printf("%d",sbx); else printf("%d %d",a,sbx);
break;
}
switch (o)
{
case OP_LOADK:
printf("\t; "); PrintConstant(f,bx);
break;
case OP_GETUPVAL:
case OP_SETUPVAL:
printf("\t; %s", (f->sizeupvalues>0) ? getstr(f->upvalues[b]) : "-");
break;
case OP_GETGLOBAL:
case OP_SETGLOBAL:
printf("\t; %s",svalue(&f->k[bx]));
break;
case OP_GETTABLE:
case OP_SELF:
if (ISK(c)) { printf("\t; "); PrintConstant(f,INDEXK(c)); }
break;
case OP_SETTABLE:
case OP_ADD:
case OP_SUB:
case OP_MUL:
case OP_DIV:
case OP_POW:
case OP_EQ:
case OP_LT:
case OP_LE:
if (ISK(b) || ISK(c))
{
printf("\t; ");
if (ISK(b)) PrintConstant(f,INDEXK(b)); else printf("-");
printf(" ");
if (ISK(c)) PrintConstant(f,INDEXK(c)); else printf("-");
}
break;
case OP_JMP:
case OP_FORLOOP:
case OP_FORPREP:
printf("\t; to %d",sbx+pc+2);
break;
case OP_CLOSURE:
printf("\t; %p",VOID(f->p[bx]));
break;
case OP_SETLIST:
if (c==0) printf("\t; %d",(int)code[++pc]);
else printf("\t; %d",c);
break;
default:
break;
}
printf("\n");
}
}
#define SS(x) (x==1)?"":"s"
#define S(x) x,SS(x)
static void PrintHeader(const Proto* f)
{
const char* s=getstr(f->source);
if (*s=='@' || *s=='=')
s++;
else if (*s==LUA_SIGNATURE[0])
s="(bstring)";
else
s="(string)";
printf("\n%s <%s:%d,%d> (%d instruction%s, %d bytes at %p)\n",
(f->linedefined==0)?"main":"function",s,
f->linedefined,f->lastlinedefined,
S(f->sizecode),f->sizecode*Sizeof(Instruction),VOID(f));
printf("%d%s param%s, %d slot%s, %d upvalue%s, ",
f->numparams,f->is_vararg?"+":"",SS(f->numparams),
S(f->maxstacksize),S(f->nups));
printf("%d local%s, %d constant%s, %d function%s\n",
S(f->sizelocvars),S(f->sizek),S(f->sizep));
}
static void PrintConstants(const Proto* f)
{
int i,n=f->sizek;
printf("constants (%d) for %p:\n",n,VOID(f));
for (i=0; i<n; i++)
{
printf("\t%d\t",i+1);
PrintConstant(f,i);
printf("\n");
}
}
static void PrintLocals(const Proto* f)
{
int i,n=f->sizelocvars;
printf("locals (%d) for %p:\n",n,VOID(f));
for (i=0; i<n; i++)
{
printf("\t%d\t%s\t%d\t%d\n",
i,getstr(f->locvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1);
}
}
static void PrintUpvalues(const Proto* f)
{
int i,n=f->sizeupvalues;
printf("upvalues (%d) for %p:\n",n,VOID(f));
if (f->upvalues==NULL) return;
for (i=0; i<n; i++)
{
printf("\t%d\t%s\n",i,getstr(f->upvalues[i]));
}
}
void PrintFunction(const Proto* f, int full)
{
int i,n=f->sizep;
PrintHeader(f);
PrintCode(f);
if (full)
{
PrintConstants(f);
PrintLocals(f);
PrintUpvalues(f);
}
for (i=0; i<n; i++) PrintFunction(f->p[i],full);
}

10
library/CMakeLists.txt
Unescape Escape View File

@ -6,7 +6,6 @@ OPTION(BUILD_DEVEL "Install/package files required for development (For SDK)." O
OPTION(BUILD_DOXYGEN "Create/install/package doxygen documentation for DFHack (For SDK)." OFF)
IF(UNIX)
OPTION(CONSOLE_NO_CATCH "Make the console not catch 'CTRL+C' events for easier debugging." OFF)
OPTION(MALLOC_FILL "Make malloc calls fill the allocated memory with 0xCC values." OFF)
ENDIF()
include_directories (include)
@ -29,6 +28,7 @@ include/ColorText.h
include/DataDefs.h
include/DataIdentity.h
include/LuaWrapper.h
include/LuaTools.h
include/Error.h
include/Export.h
include/Hooks.h
@ -58,6 +58,7 @@ ColorText.cpp
DataDefs.cpp
LuaWrapper.cpp
LuaTypes.cpp
LuaTools.cpp
DataStatics.cpp
DataStaticsCtor.cpp
DataStaticsFields.cpp
@ -214,9 +215,6 @@ IF(UNIX)
IF(CONSOLE_NO_CATCH)
ADD_DEFINITIONS(-DCONSOLE_NO_CATCH)
ENDIF()
IF(MALLOC_FILL)
ADD_DEFINITIONS(-DMALLOC_FILL)
ENDIF()
ENDIF()
IF(UNIX)
@ -295,6 +293,10 @@ install(TARGETS dfhack-run dfhack-client
LIBRARY DESTINATION ${DFHACK_LIBRARY_DESTINATION}
RUNTIME DESTINATION ${DFHACK_LIBRARY_DESTINATION})
install(DIRECTORY lua/
DESTINATION ${DFHACK_LUA_DESTINATION}
FILES_MATCHING PATTERN "*.lua")
# Unused for so long that it's not even relevant now...
if(BUILD_DEVEL)
if(WIN32)

2
library/ColorText.cpp
Unescape Escape View File

@ -125,7 +125,7 @@ void color_ostream::vprinterr(const char *format, va_list args)
color_value save = cur_color;
if (log_errors_to_stderr)
fprintf(stderr, format, args);
vfprintf(stderr, format, args);
color(COLOR_LIGHTRED);
vprint(format, args);

41
library/Core.cpp
Unescape Escape View File

@ -609,6 +609,7 @@ Core::Core()
HotkeyCond = 0;
misc_data_mutex=0;
last_world_data_ptr = NULL;
last_local_map_ptr = NULL;
top_viewscreen = NULL;
screen_window = NULL;
server = NULL;
@ -757,6 +758,16 @@ std::string Core::getHotkeyCmd( void )
return returner;
}
void Core::print(const char *format, ...)
{
color_ostream_proxy proxy(getInstance().con);
va_list args;
va_start(args,format);
proxy.vprint(format,args);
va_end(args);
}
void Core::printerr(const char *format, ...)
{
color_ostream_proxy proxy(getInstance().con);
@ -859,16 +870,40 @@ int Core::Update()
// detect if the game was loaded or unloaded in the meantime
void *new_wdata = NULL;
if (df::global::world) {
void *new_mapdata = NULL;
if (df::global::world)
{
df::world_data *wdata = df::global::world->world_data;
// when the game is unloaded, world_data isn't deleted, but its contents are
if (wdata && !wdata->sites.empty())
new_wdata = wdata;
new_mapdata = df::global::world->map.block_index;
}
if (new_wdata != last_world_data_ptr) {
// if the world changes
if (new_wdata != last_world_data_ptr)
{
// we check for map change too
bool mapchange = new_mapdata != last_local_map_ptr;
last_world_data_ptr = new_wdata;
plug_mgr->OnStateChange(out, new_wdata ? SC_GAME_LOADED : SC_GAME_UNLOADED);
last_local_map_ptr = new_mapdata;
getWorld()->ClearPersistentCache();
// and if the world is going away, we report the map change first
if(!new_wdata && mapchange)
plug_mgr->OnStateChange(out, new_mapdata ? SC_MAP_LOADED : SC_MAP_UNLOADED);
// and if the world is appearing, we report map change after that
plug_mgr->OnStateChange(out, new_wdata ? SC_WORLD_LOADED : SC_WORLD_UNLOADED);
if(new_wdata && mapchange)
plug_mgr->OnStateChange(out, new_mapdata ? SC_MAP_LOADED : SC_MAP_UNLOADED);
}
// otherwise just check for map change...
else if (new_mapdata != last_local_map_ptr)
{
last_local_map_ptr = new_mapdata;
getWorld()->ClearPersistentCache();
plug_mgr->OnStateChange(out, new_mapdata ? SC_MAP_LOADED : SC_MAP_UNLOADED);
}
// detect if the viewscreen changed

21
library/Hooks-linux.cpp
Unescape Escape View File

@ -141,24 +141,3 @@ DFhackCExport int SDL_Init(uint32_t flags)
int ret = _SDL_Init(flags);
return ret;
}
#ifdef MALLOC_FILL
DFhackCExport void * malloc(size_t size)
{
static void* (*real_malloc)(size_t) = NULL;
if (!real_malloc)
real_malloc = (void * (*)( size_t )) dlsym(RTLD_NEXT, "malloc");
// check if we got them
if(!real_malloc)
{
// bail, this would be a disaster otherwise
exit(1);
}
void * ret = real_malloc(size);
if(ret)
{
memset(ret, 0xCC, size);
}
return ret;
}
#endif

613
library/LuaTools.cpp
Unescape Escape View File

@ -0,0 +1,613 @@
/*
https://github.com/peterix/dfhack
Copyright (c) 2009-2011 Petr Mrázek (peterix@gmail.com)
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product documentation
would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and
must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*/
#include "Internal.h"
#include <string>
#include <vector>
#include <map>
#include "MemAccess.h"
#include "Core.h"
#include "VersionInfo.h"
#include "tinythread.h"
// must be last due to MS stupidity
#include "DataDefs.h"
#include "DataIdentity.h"
#include "modules/World.h"
#include "LuaWrapper.h"
#include "LuaTools.h"
#include "MiscUtils.h"
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
using namespace DFHack;
using namespace DFHack::LuaWrapper;
void DFHack::Lua::PushDFObject(lua_State *state, type_identity *type, void *ptr)
{
push_object_internal(state, type, ptr, false);
}
void *DFHack::Lua::GetDFObject(lua_State *state, type_identity *type, int val_index, bool exact_type)
{
return get_object_internal(state, type, val_index, exact_type, false);
}
static int DFHACK_OSTREAM_TOKEN = 0;
color_ostream *DFHack::Lua::GetOutput(lua_State *L)
{
lua_rawgetp(L, LUA_REGISTRYINDEX, &DFHACK_OSTREAM_TOKEN);
auto rv = (color_ostream*)lua_touserdata(L, -1);
lua_pop(L, 1);
return rv;
}
static void set_dfhack_output(lua_State *L, color_ostream *p)
{
lua_pushlightuserdata(L, p);
lua_rawsetp(L, LUA_REGISTRYINDEX, &DFHACK_OSTREAM_TOKEN);
}
static std::string lua_print_fmt(lua_State *L)
{
/* Copied from lua source to fully replicate builtin print */
int n = lua_gettop(L); /* number of arguments */
lua_getglobal(L, "tostring");
std::stringstream ss;
for (int i=1; i<=n; i++) {
lua_pushvalue(L, -1); /* function to be called */
lua_pushvalue(L, i); /* value to print */
lua_call(L, 1, 1);
const char *s = lua_tostring(L, -1); /* get result */
if (s == NULL)
luaL_error(L, "tostring must return a string to print");
if (i>1)
ss << '\t';
ss << s;
lua_pop(L, 1); /* pop result */
}
return ss.str();
}
static int lua_dfhack_print(lua_State *S)
{
std::string str = lua_print_fmt(S);
if (color_ostream *out = Lua::GetOutput(S))
*out << str;
else
Core::print("%s", str.c_str());
return 0;
}
static int lua_dfhack_println(lua_State *S)
{
std::string str = lua_print_fmt(S);
if (color_ostream *out = Lua::GetOutput(S))
*out << str << std::endl;
else
Core::print("%s\n", str.c_str());
return 0;
}
static int lua_dfhack_printerr(lua_State *S)
{
std::string str = lua_print_fmt(S);
if (color_ostream *out = Lua::GetOutput(S))
out->printerr("%s\n", str.c_str());
else
Core::printerr("%s\n", str.c_str());
return 0;
}
static int traceback (lua_State *L) {
const char *msg = lua_tostring(L, 1);
if (msg)
luaL_traceback(L, L, msg, 1);
else if (!lua_isnoneornil(L, 1)) { /* is there an error object? */
if (!luaL_callmeta(L, 1, "__tostring")) /* try its 'tostring' metamethod */
lua_pushliteral(L, "(no error message)");
}
return 1;
}
static void report_error(color_ostream &out, lua_State *L)
{
const char *msg = lua_tostring(L, -1);
if (msg)
out.printerr("%s\n", msg);
else
out.printerr("In Lua::SafeCall: error message is not a string.\n", msg);
lua_pop(L, 1);
}
bool DFHack::Lua::SafeCall(color_ostream &out, lua_State *L, int nargs, int nres, bool perr)
{
int base = lua_gettop(L) - nargs;
color_ostream *cur_out = Lua::GetOutput(L);
set_dfhack_output(L, &out);
lua_pushcfunction(L, traceback);
lua_insert(L, base);
bool ok = lua_pcall(L, nargs, nres, base) == LUA_OK;
lua_remove(L, base);
set_dfhack_output(L, cur_out);
if (!ok && perr)
report_error(out, L);
return ok;
}
bool DFHack::Lua::Require(color_ostream &out, lua_State *state,
const std::string &module, bool setglobal)
{
lua_getglobal(state, "require");
lua_pushstring(state, module.c_str());
if (!Lua::SafeCall(out, state, 1, 1))
return false;
if (setglobal)
lua_setglobal(state, module.c_str());
else
lua_pop(state, 1);
return true;
}
static bool load_with_env(color_ostream &out, lua_State *state, const std::string &code, int eidx)
{
if (luaL_loadbuffer(state, code.data(), code.size(), "=(interactive)") != LUA_OK)
{
report_error(out, state);
return false;
}
// Replace _ENV
lua_pushvalue(state, eidx);
if (!lua_setupvalue(state, -2, 1))
{
out.printerr("No _ENV upvalue.\n");
return false;
}
return true;
}
bool DFHack::Lua::InterpreterLoop(color_ostream &out, lua_State *state,
const char *prompt, int env, const char *hfile)
{
if (!out.is_console())
return false;
if (!lua_checkstack(state, 20))
return false;
if (!hfile)
hfile = "lua.history";
if (!prompt)
prompt = "lua";
DFHack::CommandHistory hist;
hist.load(hfile);
out.print("Type quit to exit interactive lua interpreter.\n");
static bool print_banner = true;
if (print_banner) {
out.print("Shortcuts:\n"
" '= foo' => '_1,_2,... = foo'\n"
" '! foo' => 'print(foo)'\n"
"Both save the first result as '_'.\n");
print_banner = false;
}
Console &con = static_cast<Console&>(out);
// Make a proxy global environment.
lua_newtable(state);
lua_newtable(state);
if (env)
lua_pushvalue(state, env);
else
lua_rawgeti(state, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS);
lua_setfield(state, -2, "__index");
lua_setmetatable(state, -2);
// Main interactive loop
int base = lua_gettop(state);
int vcnt = 1;
string curline;
string prompt_str = "[" + string(prompt) + "]# ";
for (;;) {
lua_settop(state, base);
con.lineedit(prompt_str,curline,hist);
if (curline.empty())
continue;
if (curline == "quit")
break;
hist.add(curline);
char pfix = curline[0];
if (pfix == '=' || pfix == '!')
{
curline = "return " + curline.substr(1);
if (!load_with_env(out, state, curline, base))
continue;
if (!SafeCall(out, state, 0, LUA_MULTRET))
continue;
int numret = lua_gettop(state) - base;
if (numret >= 1)
{
lua_pushvalue(state, base+1);
lua_setfield(state, base, "_");
if (pfix == '!')
{
lua_pushcfunction(state, lua_dfhack_println);
lua_insert(state, base+1);
SafeCall(out, state, numret, 0);
continue;
}
}
for (int i = 1; i <= numret; i++)
{
std::string name = stl_sprintf("_%d", vcnt++);
lua_pushvalue(state, base + i);
lua_setfield(state, base, name.c_str());
out.print("%s = ", name.c_str());
lua_pushcfunction(state, lua_dfhack_println);
lua_pushvalue(state, base + i);
SafeCall(out, state, 1, 0);
}
}
else
{
if (!load_with_env(out, state, curline, base))
continue;
if (!SafeCall(out, state, 0, 0))
continue;
}
}
lua_settop(state, base-1);
hist.save(hfile);
return true;
}
static int lua_dfhack_interpreter(lua_State *state)
{
color_ostream *pstream = Lua::GetOutput(state);
if (!pstream)
luaL_error(state, "Cannot use dfhack.interpreter() without output.");
int argc = lua_gettop(state);
const char *prompt = (argc >= 1 ? lua_tostring(state, 1) : NULL);
int env = (argc >= 2 && !lua_isnil(state,2) ? 2 : 0);
const char *hfile = (argc >= 3 ? lua_tostring(state, 3) : NULL);
lua_pushboolean(state, Lua::InterpreterLoop(*pstream, state, prompt, env, hfile));
return 1;
}
static int lua_dfhack_with_suspend(lua_State *L)
{
int ctx;
int rv = lua_getctx(L, &ctx);
// Non-resume entry point:
if (rv == LUA_OK)
{
int nargs = lua_gettop(L);
luaL_checktype(L, 1, LUA_TFUNCTION);
Core::getInstance().Suspend();
lua_pushcfunction(L, traceback);
lua_insert(L, 1);
rv = lua_pcallk(L, nargs-1, LUA_MULTRET, 1, 0, lua_dfhack_with_suspend);
}
// Return, resume, or error entry point:
lua_remove(L, 1);
Core::getInstance().Resume();
if (rv != LUA_OK && rv != LUA_YIELD)
lua_error(L);
return lua_gettop(L);
}
static const luaL_Reg dfhack_funcs[] = {
{ "print", lua_dfhack_print },
{ "println", lua_dfhack_println },
{ "printerr", lua_dfhack_printerr },
{ "traceback", traceback },
{ "interpreter", lua_dfhack_interpreter },
{ "with_suspend", lua_dfhack_with_suspend },
{ NULL, NULL }
};
/*
* Per-world persistent configuration storage.
*/
static PersistentDataItem persistent_by_struct(lua_State *state, int idx)
{
lua_getfield(state, idx, "entry_id");
int id = lua_tointeger(state, -1);
lua_pop(state, 1);
PersistentDataItem ref = Core::getInstance().getWorld()->GetPersistentData(id);
if (ref.isValid())
{
lua_getfield(state, idx, "key");
const char *str = lua_tostring(state, -1);
if (!str || str != ref.key())
luaL_argerror(state, idx, "inconsistent id and key");
lua_pop(state, 1);
}
return ref;
}
static int read_persistent(lua_State *state, PersistentDataItem ref, bool create)
{
if (!ref.isValid())
{
lua_pushnil(state);
lua_pushstring(state, "entry not found");
return 2;
}
if (create)
lua_createtable(state, 0, 4);
lua_pushvalue(state, lua_upvalueindex(1));
lua_setmetatable(state, -2);
lua_pushinteger(state, ref.entry_id());
lua_setfield(state, -2, "entry_id");
lua_pushstring(state, ref.key().c_str());
lua_setfield(state, -2, "key");
lua_pushstring(state, ref.val().c_str());
lua_setfield(state, -2, "value");
lua_createtable(state, PersistentDataItem::NumInts, 0);
for (int i = 0; i < PersistentDataItem::NumInts; i++)
{
lua_pushinteger(state, ref.ival(i));
lua_rawseti(state, -2, i+1);
}
lua_setfield(state, -2, "ints");
return 1;
}
static PersistentDataItem get_persistent(lua_State *state)
{
luaL_checkany(state, 1);
if (lua_istable(state, 1))
{
if (!lua_getmetatable(state, 1) ||
!lua_rawequal(state, -1, lua_upvalueindex(1)))
luaL_argerror(state, 1, "invalid table type");
lua_settop(state, 1);
return persistent_by_struct(state, 1);
}
else
{
const char *str = luaL_checkstring(state, 1);
return Core::getInstance().getWorld()->GetPersistentData(str);
}
}
static int dfhack_persistent_get(lua_State *state)
{
auto ref = get_persistent(state);
return read_persistent(state, ref, !lua_istable(state, 1));
}
static int dfhack_persistent_delete(lua_State *state)
{
auto ref = get_persistent(state);
bool ok = Core::getInstance().getWorld()->DeletePersistentData(ref);
lua_pushboolean(state, ok);
return 1;
}
static int dfhack_persistent_get_all(lua_State *state)
{
const char *str = luaL_checkstring(state, 1);
bool prefix = (lua_gettop(state)>=2 ? lua_toboolean(state,2) : false);
std::vector<PersistentDataItem> data;
Core::getInstance().getWorld()->GetPersistentData(&data, str, prefix);
if (data.empty())
{
lua_pushnil(state);
}
else
{
lua_createtable(state, data.size(), 0);
for (size_t i = 0; i < data.size(); ++i)
{
read_persistent(state, data[i], true);
lua_rawseti(state, -2, i+1);
}
}
return 1;
}
static int dfhack_persistent_save(lua_State *state)
{
lua_settop(state, 2);
luaL_checktype(state, 1, LUA_TTABLE);
bool add = lua_toboolean(state, 2);
lua_getfield(state, 1, "key");
const char *str = lua_tostring(state, -1);
if (!str)
luaL_argerror(state, 1, "no key field");
lua_settop(state, 1);
PersistentDataItem ref;
bool added = false;
if (add)
{
ref = Core::getInstance().getWorld()->AddPersistentData(str);
added = true;
}
else if (lua_getmetatable(state, 1))
{
if (!lua_rawequal(state, -1, lua_upvalueindex(1)))
return luaL_argerror(state, 1, "invalid table type");
lua_pop(state, 1);
ref = persistent_by_struct(state, 1);
}
else
{
ref = Core::getInstance().getWorld()->GetPersistentData(str);
}
if (!ref.isValid())
{
ref = Core::getInstance().getWorld()->AddPersistentData(str);
if (!ref.isValid())
luaL_error(state, "cannot create persistent entry");
added = true;
}
lua_getfield(state, 1, "value");
if (const char *str = lua_tostring(state, -1))
ref.val() = str;
lua_pop(state, 1);
lua_getfield(state, 1, "ints");
if (lua_istable(state, -1))
{
for (int i = 0; i < PersistentDataItem::NumInts; i++)
{
lua_rawgeti(state, -1, i+1);
if (lua_isnumber(state, -1))
ref.ival(i) = lua_tointeger(state, -1);
lua_pop(state, 1);
}
}
lua_pop(state, 1);
read_persistent(state, ref, false);
lua_pushboolean(state, added);
return 2;
}
static const luaL_Reg dfhack_persistent_funcs[] = {
{ "get", dfhack_persistent_get },
{ "delete", dfhack_persistent_delete },
{ "get_all", dfhack_persistent_get_all },
{ "save", dfhack_persistent_save },
{ NULL, NULL }
};
static void OpenPersistent(lua_State *state)
{
luaL_getsubtable(state, lua_gettop(state), "persistent");
lua_dup(state);
luaL_setfuncs(state, dfhack_persistent_funcs, 1);
lua_dup(state);
lua_setfield(state, -2, "__index");
lua_pop(state, 1);
}
lua_State *DFHack::Lua::Open(color_ostream &out, lua_State *state)
{
if (!state)
state = luaL_newstate();
luaL_openlibs(state);
AttachDFGlobals(state);
// Replace the print function of the standard library
lua_pushcfunction(state, lua_dfhack_println);
lua_setglobal(state, "print");
// Create and initialize the dfhack global
lua_newtable(state);
luaL_setfuncs(state, dfhack_funcs, 0);
OpenPersistent(state);
lua_setglobal(state, "dfhack");
// load dfhack.lua
Require(out, state, "dfhack");
return state;
}

10
library/LuaTypes.cpp
Unescape Escape View File

@ -643,7 +643,7 @@ static int meta_struct_next(lua_State *state)
{
if (lua_gettop(state) < 2) lua_pushnil(state);
int len = lua_objlen(state, UPVAL_FIELDTABLE);
int len = lua_rawlen(state, UPVAL_FIELDTABLE);
int idx = cur_iter_index(state, len+1, 2, 0);
if (idx == len)
return 0;
@ -1032,7 +1032,7 @@ static int meta_call_function(lua_State *state)
static void AddMethodWrapper(lua_State *state, int meta_idx, int field_idx,
const char *name, function_identity_base *fun)
{
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_TYPETABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushvalue(state, meta_idx);
lua_pushfstring(state, "%s()", name);
lua_pushlightuserdata(state, fun);
@ -1053,7 +1053,7 @@ static void IndexFields(lua_State *state, int base, struct_identity *pstruct)
if (!fields)
return;
int cnt = lua_objlen(state, base+3); // field iter table
int cnt = lua_rawlen(state, base+3); // field iter table
for (int i = 0; fields[i].mode != struct_field_info::END; ++i)
{
@ -1331,7 +1331,7 @@ void LuaWrapper::push_adhoc_pointer(lua_State *state, void *ptr, type_identity *
return;
}
LookupInTable(state, target, DFHACK_PTR_IDTABLE_NAME);
LookupInTable(state, target, &DFHACK_PTR_IDTABLE_TOKEN);
type_identity *id = (type_identity*)lua_touserdata(state, -1);
lua_pop(state, 1);
@ -1347,7 +1347,7 @@ void LuaWrapper::push_adhoc_pointer(lua_State *state, void *ptr, type_identity *
void *newobj = lua_newuserdata(state, sizeof(pointer_identity));
id = new (newobj) pointer_identity(target);
SaveInTable(state, target, DFHACK_PTR_IDTABLE_NAME);
SaveInTable(state, target, &DFHACK_PTR_IDTABLE_TOKEN);
lua_pop(state, 1);
}

192
library/LuaWrapper.cpp
Unescape Escape View File

@ -59,16 +59,6 @@ void LuaWrapper::field_error(lua_State *state, int index, const char *err, const
mode, (cname ? cname : "?"), (fname ? fname : "?"), err);
}
void DFHack::PushDFObject(lua_State *state, type_identity *type, void *ptr)
{
push_object_internal(state, type, ptr, false);
}
void *DFHack::GetDFObject(lua_State *state, type_identity *type, int val_index, bool exact_type)
{
return get_object_internal(state, type, val_index, exact_type, false);
}
/* */
static int change_error(lua_State *state)
@ -103,9 +93,9 @@ static void freeze_table(lua_State *state, bool leave_metatable = false, const c
lua_pop(state, 1);
}
static void LookupInTable(lua_State *state, const char *tname)
static void LookupInTable(lua_State *state, LuaToken *tname)
{
lua_getfield(state, LUA_REGISTRYINDEX, tname);
lua_rawgetp(state, LUA_REGISTRYINDEX, tname);
lua_swap(state);
lua_rawget(state, -2);
lua_remove(state, -2);
@ -125,12 +115,12 @@ bool LuaWrapper::LookupTypeInfo(lua_State *state, bool in_method)
}
else
{
LookupInTable(state, DFHACK_TYPETABLE_NAME);
LookupInTable(state, &DFHACK_TYPETABLE_TOKEN);
}
// stack: [info]
if (!lua_islightuserdata(state, -1))
if (lua_isnil(state, -1))
{
lua_pop(state, 1);
return false;
@ -139,22 +129,20 @@ bool LuaWrapper::LookupTypeInfo(lua_State *state, bool in_method)
return true;
}
void LuaWrapper::LookupInTable(lua_State *state, void *id, const char *tname)
void LuaWrapper::LookupInTable(lua_State *state, void *id, LuaToken *tname)
{
lua_getfield(state, LUA_REGISTRYINDEX, tname);
lua_pushlightuserdata(state, id);
lua_rawget(state, -2);
lua_rawgetp(state, LUA_REGISTRYINDEX, tname);
lua_rawgetp(state, -1, id);
lua_remove(state, -2);
}
void LuaWrapper::SaveInTable(lua_State *state, void *node, const char *tname)
void LuaWrapper::SaveInTable(lua_State *state, void *node, LuaToken *tname)
{
// stack: [info]
lua_getfield(state, LUA_REGISTRYINDEX, tname);
lua_rawgetp(state, LUA_REGISTRYINDEX, tname);
lua_pushlightuserdata(state, node);
lua_pushvalue(state, -3);
lua_rawset(state, -3);
lua_pushvalue(state, -2);
lua_rawsetp(state, -2, node);
lua_pushvalue(state, -2);
lua_pushlightuserdata(state, node);
@ -166,7 +154,7 @@ void LuaWrapper::SaveInTable(lua_State *state, void *node, const char *tname)
void LuaWrapper::SaveTypeInfo(lua_State *state, void *node)
{
SaveInTable(state, node, DFHACK_TYPETABLE_NAME);
SaveInTable(state, node, &DFHACK_TYPETABLE_TOKEN);
}
static void BuildTypeMetatable(lua_State *state, type_identity *type);
@ -321,7 +309,7 @@ bool LuaWrapper::is_type_compatible(lua_State *state, type_identity *type1, int
static bool is_type_compatible(lua_State *state, type_identity *type1, int meta1,
int meta2, bool exact_equal)
{
lua_getfield(state, meta2, "_identity");
lua_rawgetp(state, meta2, &DFHACK_IDENTITY_FIELD_TOKEN);
auto type2 = (type_identity*)lua_touserdata(state, -1);
lua_pop(state, 1);
@ -333,7 +321,7 @@ static bool is_type_compatible(lua_State *state, int meta1, int meta2, bool exac
if (lua_rawequal(state, meta1, meta2))
return true;
lua_getfield(state, meta1, "_identity");
lua_rawgetp(state, meta1, &DFHACK_IDENTITY_FIELD_TOKEN);
auto type1 = (type_identity*)lua_touserdata(state, -1);
lua_pop(state, 1);
@ -406,7 +394,7 @@ static bool is_valid_metatable(lua_State *state, int objidx, int metaidx)
else
{
lua_pushvalue(state, objidx);
LookupInTable(state, DFHACK_TYPEID_TABLE_NAME);
LookupInTable(state, &DFHACK_TYPEID_TABLE_TOKEN);
}
bool ok = !lua_isnil(state, -1);
@ -431,7 +419,7 @@ type_identity *LuaWrapper::get_object_identity(lua_State *state, int objidx,
luaL_error(state, "Invalid object metatable in %s", ctx);
// Extract identity from metatable
lua_getfield(state, -1, "_identity");
lua_rawgetp(state, -1, &DFHACK_IDENTITY_FIELD_TOKEN);
type_identity *id = (type_identity*)lua_touserdata(state, -1);
if (!id)
@ -441,9 +429,9 @@ type_identity *LuaWrapper::get_object_identity(lua_State *state, int objidx,
return id;
}
static void check_type_compatible(lua_State *state, int obj1, int obj2,
static bool check_type_compatible(lua_State *state, int obj1, int obj2,
type_identity **type1, type_identity **type2,
const char *ctx, bool allow_type, bool exact)
const char *ctx, bool allow_type, bool exact, bool error = true)
{
int base = lua_gettop(state);
@ -452,6 +440,12 @@ static void check_type_compatible(lua_State *state, int obj1, int obj2,
if (!is_type_compatible(state, *type1, base+1, *type2, base+2, exact))
{
if (!error)
{
lua_pop(state, 2);
return false;
}
lua_getfield(state, base+1, "__metatable");
const char *cname1 = lua_tostring(state, -1);
lua_getfield(state, base+2, "__metatable");
@ -461,6 +455,7 @@ static void check_type_compatible(lua_State *state, int obj1, int obj2,
}
lua_pop(state, 2);
return true;
}
/**
@ -695,7 +690,7 @@ static int meta_assign(lua_State *state)
/*
* no assign && nil or missing resize field => 1-based lua array
*/
int size = lua_objlen(state, 2);
int size = lua_rawlen(state, 2);
lua_pop(state, 1);
invoke_resize(state, 1, size);
@ -751,6 +746,30 @@ static int meta_assign(lua_State *state)
return 0;
}
/**
* Method: check if the two objects are assignment-compatible.
*/
static int meta_is_instance(lua_State *state)
{
int argc = lua_gettop(state);
if (argc != 2)
luaL_error(state, "Usage: type:is_instance(obj) or df.is_instance(type,obj)");
// If garbage as second argument, return nil
if (!lua_istable(state, 2) && (!lua_isuserdata(state,2) || lua_islightuserdata(state, 2)))
{
lua_pushnil(state);
return 1;
}
type_identity *id1, *id2;
bool ok = check_type_compatible(state, 1, 2, &id1, &id2, "df.is_instance()", true, false, false);
lua_pushboolean(state, ok);
return 1;
}
/**
* Method: deallocation for DF object references.
*/
@ -875,9 +894,9 @@ void LuaWrapper::MakeMetatable(lua_State *state, type_identity *type, const char
lua_setfield(state, base+1, "__metatable");
lua_pushlightuserdata(state, type);
lua_setfield(state, base+1, "_identity");
lua_rawsetp(state, base+1, &DFHACK_IDENTITY_FIELD_TOKEN);
LookupInTable(state, type, DFHACK_TYPEID_TABLE_NAME);
LookupInTable(state, type, &DFHACK_TYPEID_TABLE_TOKEN);
if (lua_isnil(state, -1))
{
// Copy the string from __metatable if no real type
@ -910,7 +929,7 @@ void LuaWrapper::SetPtrMethods(lua_State *state, int meta_idx, int read_idx)
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_COMPARE_NAME);
lua_setfield(state, meta_idx, "__eq");
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_TYPETABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushvalue(state, meta_idx);
lua_pushcclosure(state, meta_ptr_tostring, 2);
lua_setfield(state, meta_idx, "__tostring");
@ -962,7 +981,7 @@ void LuaWrapper::SetPairsMethod(lua_State *state, int meta_idx, const char *name
void LuaWrapper::PushStructMethod(lua_State *state, int meta_idx, int ftable_idx,
lua_CFunction function)
{
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_TYPETABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushvalue(state, meta_idx);
lua_pushvalue(state, ftable_idx);
lua_pushcclosure(state, function, 3);
@ -985,7 +1004,7 @@ void LuaWrapper::PushContainerMethod(lua_State *state, int meta_idx, int ftable_
lua_CFunction function,
type_identity *container, type_identity *item, int count)
{
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_TYPETABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushvalue(state, meta_idx);
lua_pushvalue(state, ftable_idx);
@ -1018,10 +1037,10 @@ void LuaWrapper::AttachEnumKeys(lua_State *state, int meta_idx, int ftable_idx,
{
EnableMetaField(state, ftable_idx, "_enum");
LookupInTable(state, ienum, DFHACK_TYPEID_TABLE_NAME);
LookupInTable(state, ienum, &DFHACK_TYPEID_TABLE_TOKEN);
lua_setfield(state, meta_idx, "_enum");
LookupInTable(state, ienum, DFHACK_ENUM_TABLE_NAME);
LookupInTable(state, ienum, &DFHACK_ENUM_TABLE_TOKEN);
if (!lua_isnil(state, -1))
{
@ -1034,7 +1053,7 @@ void LuaWrapper::AttachEnumKeys(lua_State *state, int meta_idx, int ftable_idx,
else
{
lua_pop(state, 1);
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_EMPTY_TABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_EMPTY_TABLE_TOKEN);
}
lua_dup(state);
@ -1073,12 +1092,7 @@ static void FillEnumKeys(lua_State *state, int ftable, enum_identity *eid)
// Create a new table attached to ftable as __index
lua_newtable(state);
lua_dup(state);
lua_setmetatable(state, ftable);
int base = lua_gettop(state);
lua_newtable(state);
// For enums, set mapping between keys and values
@ -1097,12 +1111,12 @@ static void FillEnumKeys(lua_State *state, int ftable, enum_identity *eid)
lua_setfield(state, base+1, "_last_item");
}
SaveInTable(state, eid, DFHACK_ENUM_TABLE_NAME);
SaveInTable(state, eid, &DFHACK_ENUM_TABLE_TOKEN);
// Add an attribute table if any
if (eid->getAttrs())
{
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_TYPETABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushlightuserdata(state, eid);
lua_pushvalue(state, base+1);
lua_pushcclosure(state, meta_enum_attr_index, 3);
@ -1112,28 +1126,36 @@ static void FillEnumKeys(lua_State *state, int ftable, enum_identity *eid)
}
lua_setfield(state, base, "__index");
lua_pop(state, 1);
lua_setmetatable(state, ftable);
}
static void FillBitfieldKeys(lua_State *state, int ftable, bitfield_identity *eid)
{
// Create a new table attached to ftable as __index
lua_newtable(state);
int base = lua_gettop(state);
lua_newtable(state);
auto bits = eid->getBits();
for (int i = 0; i < eid->getNumBits(); i++)
{
if (bits[i].name)
AssociateId(state, ftable, i, bits[i].name);
AssociateId(state, base+1, i, bits[i].name);
if (bits[i].size > 1)
i += bits[i].size-1;
}
lua_pushinteger(state, 0);
lua_setfield(state, ftable, "_first_item");
lua_setfield(state, base+1, "_first_item");
lua_pushinteger(state, eid->getNumBits()-1);
lua_setfield(state, ftable, "_last_item");
lua_setfield(state, base+1, "_last_item");
SaveInTable(state, eid, DFHACK_ENUM_TABLE_NAME);
SaveInTable(state, eid, &DFHACK_ENUM_TABLE_TOKEN);
lua_setfield(state, base, "__index");
lua_setmetatable(state, ftable);
}
static void RenderType(lua_State *state, compound_identity *node)
@ -1147,7 +1169,7 @@ static void RenderType(lua_State *state, compound_identity *node)
if (!lua_checkstack(state, 20))
return;
SaveInTable(state, node, DFHACK_TYPEID_TABLE_NAME);
SaveInTable(state, node, &DFHACK_TYPEID_TABLE_TOKEN);
// metatable
lua_newtable(state);
@ -1162,7 +1184,7 @@ static void RenderType(lua_State *state, compound_identity *node)
lua_setfield(state, base+2, "__tostring");
lua_pushlightuserdata(state, node);
lua_setfield(state, base+2, "_identity");
lua_rawsetp(state, base+2, &DFHACK_IDENTITY_FIELD_TOKEN);
// inner table
lua_newtable(state);
@ -1228,6 +1250,9 @@ static void RenderType(lua_State *state, compound_identity *node)
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_NEW_NAME);
lua_setfield(state, ftable, "new");
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_IS_INSTANCE_NAME);
lua_setfield(state, ftable, "is_instance");
lua_pop(state, 2);
}
@ -1242,21 +1267,21 @@ static void RenderTypeChildren(lua_State *state, const std::vector<compound_iden
}
}
static void DoAttach(lua_State *state)
static int DoAttach(lua_State *state)
{
int base = lua_gettop(state);
lua_newtable(state);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_PTR_IDTABLE_NAME);
lua_rawsetp(state, LUA_REGISTRYINDEX, &DFHACK_PTR_IDTABLE_TOKEN);
lua_newtable(state);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_TYPEID_TABLE_NAME);
lua_rawsetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPEID_TABLE_TOKEN);
lua_newtable(state);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_ENUM_TABLE_NAME);
lua_rawsetp(state, LUA_REGISTRYINDEX, &DFHACK_ENUM_TABLE_TOKEN);
lua_newtable(state);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_EMPTY_TABLE_NAME);
lua_rawsetp(state, LUA_REGISTRYINDEX, &DFHACK_EMPTY_TABLE_TOKEN);
lua_pushcfunction(state, change_error);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_CHANGEERROR_NAME);
@ -1267,28 +1292,30 @@ static void DoAttach(lua_State *state)
lua_pushcfunction(state, meta_type_tostring);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_TYPE_TOSTRING_NAME);
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_TYPETABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushcclosure(state, meta_sizeof, 1);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_SIZEOF_NAME);
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_TYPETABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushcclosure(state, meta_displace, 1);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_DISPLACE_NAME);
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_TYPETABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushcclosure(state, meta_new, 1);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_NEW_NAME);
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_TYPETABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushcclosure(state, meta_assign, 1);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_ASSIGN_NAME);
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_TYPETABLE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushcclosure(state, meta_is_instance, 1);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_IS_INSTANCE_NAME);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
lua_pushcclosure(state, meta_delete, 1);
lua_setfield(state, LUA_REGISTRYINDEX, DFHACK_DELETE_NAME);
luaL_register(state, "df", no_functions);
{
// Assign df a metatable with read-only contents
lua_newtable(state);
@ -1306,28 +1333,49 @@ static void DoAttach(lua_State *state)
lua_setfield(state, -2, "_displace");
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_ASSIGN_NAME);
lua_setfield(state, -2, "assign");
lua_getfield(state, LUA_REGISTRYINDEX, DFHACK_IS_INSTANCE_NAME);
lua_setfield(state, -2, "is_instance");
lua_pushlightuserdata(state, NULL);
lua_setfield(state, -2, "NULL");
lua_pushlightuserdata(state, NULL);
lua_setglobal(state, "NULL");
freeze_table(state, true, "df");
lua_remove(state, -2);
lua_setmetatable(state, -2);
freeze_table(state, false, "df");
}
lua_pop(state, 1);
return 1;
}
/**
* Initialize access to DF objects from the interpreter
* context, unless it has already been done.
*/
void DFHack::AttachDFGlobals(lua_State *state)
void LuaWrapper::AttachDFGlobals(lua_State *state)
{
if (luaL_newmetatable(state, DFHACK_TYPETABLE_NAME))
DoAttach(state);
lua_rawgetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
if (lua_isnil(state, -1))
{
lua_pop(state, 1);
lua_newtable(state);
lua_dup(state);
lua_rawsetp(state, LUA_REGISTRYINDEX, &DFHACK_TYPETABLE_TOKEN);
luaL_requiref(state, "df", DoAttach, 1);
lua_pop(state, 1);
}
lua_pop(state, 1);
}
namespace DFHack { namespace LuaWrapper {
struct LuaToken { int reserved; };
LuaToken DFHACK_IDENTITY_FIELD_TOKEN;
LuaToken DFHACK_TYPETABLE_TOKEN;
LuaToken DFHACK_TYPEID_TABLE_TOKEN;
LuaToken DFHACK_ENUM_TABLE_TOKEN;
LuaToken DFHACK_PTR_IDTABLE_TOKEN;
LuaToken DFHACK_EMPTY_TABLE_TOKEN;
}}

7
library/include/Core.h
Unescape Escape View File

@ -126,6 +126,7 @@ namespace DFHack
std::vector<std::string> ListKeyBindings(std::string keyspec);
bool isWorldLoaded() { return (last_world_data_ptr != NULL); }
bool isMapLoaded() { return (last_local_map_ptr != NULL && last_world_data_ptr != NULL); }
static df::viewscreen *getTopViewscreen() { return getInstance().top_viewscreen; }
@ -135,6 +136,7 @@ namespace DFHack
DFHack::VersionInfo * vinfo;
DFHack::Windows::df_window * screen_window;
static void print(const char *format, ...);
static void printerr(const char *format, ...);
private:
@ -193,7 +195,10 @@ namespace DFHack
int UnicodeAwareSym(const SDL::KeyboardEvent& ke);
bool SelectHotkey(int key, int modifiers);
void *last_world_data_ptr; // for state change tracking
// for state change tracking
void *last_world_data_ptr;
// for state change tracking
void *last_local_map_ptr;
df::viewscreen *top_viewscreen;
// Very important!
bool started;

35
library/include/DataDefs.h
Unescape Escape View File

@ -360,23 +360,6 @@ namespace DFHack
void InitDataDefGlobals(Core *core);
// LUA wrapper
/**
* Make DF objects available to the given interpreter.
*/
DFHACK_EXPORT void AttachDFGlobals(lua_State *state);
/**
* Push the pointer onto the stack as a wrapped DF object of the given type.
*/
DFHACK_EXPORT void PushDFObject(lua_State *state, type_identity *type, void *ptr);
/**
* Check that the value is a wrapped DF object of the given type, and if so return the pointer.
*/
DFHACK_EXPORT void *GetDFObject(lua_State *state, type_identity *type, int val_index, bool exact_type = false);
template<class T>
T *ifnull(T *a, T *b) { return a ? a : b; }
@ -683,24 +666,6 @@ namespace DFHack {
flagarray_to_string<T>(&tmp, val);
return join_strings(sep, tmp);
}
// LUA wrapper
/**
* Push the pointer onto the stack as a wrapped DF object of a specific type.
*/
template<class T>
void PushDFObject(lua_State *state, T *ptr) {
PushDFObject(state, df::identity_traits<T>::get(), ptr);
}
/**
* Check that the value is a wrapped DF object of the correct type, and if so return the pointer.
*/
template<class T>
T *GetDFObject(lua_State *state, int val_index, bool exact_type = false) {
return (T*)GetDFObject(state, df::identity_traits<T>::get(), val_index, exact_type);
}
}
#define ENUM_ATTR(enum,attr,val) (df::enum_traits<df::enum>::attrs(val).attr)

92
library/include/LuaTools.h
Unescape Escape View File

@ -0,0 +1,92 @@
/*
https://github.com/peterix/dfhack
Copyright (c) 2009-2011 Petr Mrázek (peterix@gmail.com)
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product documentation
would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and
must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*/
#pragma once
#include <string>
#include <sstream>
#include <vector>
#include <map>
#include "DataDefs.h"
#include <lua.h>
#include <lauxlib.h>
namespace DFHack { namespace Lua {
/**
* Create or initialize a lua interpreter with access to DFHack tools.
*/
DFHACK_EXPORT lua_State *Open(color_ostream &out, lua_State *state = NULL);
/**
* Load a module using require().
*/
DFHACK_EXPORT bool Require(color_ostream &out, lua_State *state,
const std::string &module, bool setglobal = false);
/**
* Push the pointer onto the stack as a wrapped DF object of the given type.
*/
DFHACK_EXPORT void PushDFObject(lua_State *state, type_identity *type, void *ptr);
/**
* Check that the value is a wrapped DF object of the given type, and if so return the pointer.
*/
DFHACK_EXPORT void *GetDFObject(lua_State *state, type_identity *type, int val_index, bool exact_type = false);
/**
* Push the pointer onto the stack as a wrapped DF object of a specific type.
*/
template<class T>
void PushDFObject(lua_State *state, T *ptr) {
PushDFObject(state, df::identity_traits<T>::get(), ptr);
}
/**
* Check that the value is a wrapped DF object of the correct type, and if so return the pointer.
*/
template<class T>
T *GetDFObject(lua_State *state, int val_index, bool exact_type = false) {
return (T*)GetDFObject(state, df::identity_traits<T>::get(), val_index, exact_type);
}
/**
* Invoke lua function via pcall. Returns true if success.
* If an error is signalled, and perr is true, it is printed and popped from the stack.
*/
DFHACK_EXPORT bool SafeCall(color_ostream &out, lua_State *state, int nargs, int nres, bool perr = true);
/**
* Returns the ostream passed to SafeCall.
*/
DFHACK_EXPORT color_ostream *GetOutput(lua_State *state);
/**
* Run an interactive interpreter loop if possible, or return false.
*/
DFHACK_EXPORT bool InterpreterLoop(color_ostream &out, lua_State *state,
const char *prompt = NULL, int env = 0, const char *hfile = NULL);
}}

40
library/include/LuaWrapper.h
Unescape Escape View File

@ -39,26 +39,32 @@ distribution.
*/
namespace DFHack { namespace LuaWrapper {
struct LuaToken;
/*
* Registry name: hash of type metatables <-> type identities.
/**
* Metatable pkey: type identity of the object
*/
#define DFHACK_TYPETABLE_NAME "DFHack::DFTypes"
extern LuaToken DFHACK_IDENTITY_FIELD_TOKEN;
/*
* Registry name: hash of type identity -> node in df.etc...
/**
* Registry pkey: hash of type metatables <-> type identities.
*/
#define DFHACK_TYPEID_TABLE_NAME "DFHack::DFTypeIds"
extern LuaToken DFHACK_TYPETABLE_TOKEN;
/*
* Registry name: hash of enum/bitfield identity -> index lookup table
/**
* Registry pkey: hash of type identity -> node in df.etc...
*/
#define DFHACK_ENUM_TABLE_NAME "DFHack::DFEnums"
extern LuaToken DFHACK_TYPEID_TABLE_TOKEN;
/*
* Registry name: hash of pointer target identity <-> adhoc pointer identity userdata.
/**
* Registry pkey: hash of enum/bitfield identity -> index lookup table
*/
extern LuaToken DFHACK_ENUM_TABLE_TOKEN;
/**
* Registry pkey: hash of pointer target identity <-> adhoc pointer identity userdata.
*/
#define DFHACK_PTR_IDTABLE_NAME "DFHack::PtrDFTypes"
extern LuaToken DFHACK_PTR_IDTABLE_TOKEN;
// Function registry names
#define DFHACK_CHANGEERROR_NAME "DFHack::ChangeError"
@ -68,8 +74,10 @@ namespace DFHack { namespace LuaWrapper {
#define DFHACK_DISPLACE_NAME "DFHack::Displace"
#define DFHACK_NEW_NAME "DFHack::New"
#define DFHACK_ASSIGN_NAME "DFHack::Assign"
#define DFHACK_IS_INSTANCE_NAME "DFHack::IsInstance"
#define DFHACK_DELETE_NAME "DFHack::Delete"
#define DFHACK_EMPTY_TABLE_NAME "DFHack::EmptyTable"
extern LuaToken DFHACK_EMPTY_TABLE_TOKEN;
/*
* Upvalue: contents of DFHACK_TYPETABLE_NAME
@ -157,8 +165,8 @@ namespace DFHack { namespace LuaWrapper {
const char *ctx, bool allow_type = false,
bool keep_metatable = false);
void LookupInTable(lua_State *state, void *id, const char *tname);
void SaveInTable(lua_State *state, void *node, const char *tname);
void LookupInTable(lua_State *state, void *id, LuaToken *tname);
void SaveInTable(lua_State *state, void *node, LuaToken *tname);
void SaveTypeInfo(lua_State *state, void *node);
void AssociateId(lua_State *state, int table, int val, const char *name);
@ -214,5 +222,7 @@ namespace DFHack { namespace LuaWrapper {
void AttachEnumKeys(lua_State *state, int meta_idx, int ftable_idx, type_identity *ienum);
void IndexStatics(lua_State *state, int meta_idx, int ftable_idx, struct_identity *pstruct);
void AttachDFGlobals(lua_State *state);
}}

6
library/include/PluginManager.h
Unescape Escape View File

@ -52,8 +52,10 @@ namespace DFHack
enum state_change_event
{
SC_GAME_LOADED,
SC_GAME_UNLOADED,
SC_WORLD_LOADED,
SC_WORLD_UNLOADED,
SC_MAP_LOADED,
SC_MAP_UNLOADED,
SC_VIEWSCREEN_CHANGED
};
struct DFHACK_EXPORT PluginCommand

4
library/include/df/custom/coord.methods.inc
Unescape Escape View File

@ -33,7 +33,7 @@ coord operator-(const coord &other) const
coord operator/(int number) const
{
return coord(x/number, y/number, z);
return coord((x < 0 ? x - number : x)/number, (y < 0 ? y - number : y)/number, z);
}
coord operator*(int number) const
{
@ -41,7 +41,7 @@ coord operator*(int number) const
}
coord operator%(int number) const
{
return coord(x%number, y%number, z);
return coord((x+number)%number, (y+number)%number, z);
}
coord operator-(int number) const

4
library/include/df/custom/coord2d.methods.inc
Unescape Escape View File

@ -29,7 +29,7 @@ coord2d operator-(const coord2d &other) const
coord2d operator/(int number) const
{
return coord2d(x/number, y/number);
return coord2d((x < 0 ? x - number : x)/number, (y < 0 ? y - number : y)/number);
}
coord2d operator*(int number) const
{
@ -37,5 +37,5 @@ coord2d operator*(int number) const
}
coord2d operator%(int number) const
{
return coord2d(x%number, y%number);
return coord2d((x+number)%number, (y+number)%number);
}

11
library/include/modules/World.h
Unescape Escape View File

@ -93,6 +93,7 @@ namespace DFHack
static const int NumInts = 7;
bool isValid() { return id != 0; }
int entry_id() { return -id; }
const std::string &key() { return key_value; }
@ -137,12 +138,18 @@ namespace DFHack
// This ensures that the values are stored in save games.
PersistentDataItem AddPersistentData(const std::string &key);
PersistentDataItem GetPersistentData(const std::string &key);
void GetPersistentData(std::vector<PersistentDataItem> *vec, const std::string &key);
void DeletePersistentData(const PersistentDataItem &item);
PersistentDataItem GetPersistentData(int entry_id);
void GetPersistentData(std::vector<PersistentDataItem> *vec,
const std::string &key, bool prefix = false);
bool DeletePersistentData(const PersistentDataItem &item);
void ClearPersistentCache();
private:
struct Private;
Private *d;
bool BuildPersistentCache();
};
}
#endif

41
library/lua/dfhack.lua
Unescape Escape View File

@ -0,0 +1,41 @@
-- Common startup file for all dfhack plugins with lua support
-- The global dfhack table is already created by C++ init code.
function mkmodule(module,env)
local pkg = package.loaded[module]
if pkg == nil then
pkg = {}
else
if type(pkg) ~= 'table' then
error("Not a table in package.loaded["..module.."]")
end
end
setmetatable(pkg, { __index = (env or _G) })
return pkg
end
function reload(module)
if type(package.loaded[module]) ~= 'table' then
error("Module not loaded: "..module)
end
local path,err = package.searchpath(module,package.path)
if not path then
error(err)
end
dofile(path)
end
function printall(table)
if table == nil then return end
for k,v in pairs(table) do
print(k," = "..tostring(v))
end
end
function dfhack.persistent:__tostring()
return "<persistent "..self.entry_id..":"..self.key.."=\""
..self.value.."\":"..table.concat(self.ints,",")..">"
end
-- Feed the table back to the require() mechanism.
return dfhack

129
library/modules/World.cpp
Unescape Escape View File

@ -58,6 +58,7 @@ struct World::Private
Private()
{
Inited = PauseInited = StartedWeather = StartedMode = false;
next_persistent_id = 0;
}
bool Inited;
@ -72,9 +73,14 @@ struct World::Private
void * controlmode_offset;
void * controlmodecopy_offset;
int next_persistent_id;
std::multimap<std::string, int> persistent_index;
Process * owner;
};
typedef std::pair<std::string, int> T_persistent_item;
World::World()
{
Core & c = Core::getInstance();
@ -217,65 +223,144 @@ static PersistentDataItem dataFromHFig(df::historical_figure *hfig)
return PersistentDataItem(hfig->id, hfig->name.first_name, &hfig->name.nickname, hfig->name.words);
}
PersistentDataItem World::AddPersistentData(const std::string &key)
void World::ClearPersistentCache()
{
d->next_persistent_id = 0;
d->persistent_index.clear();
}
bool World::BuildPersistentCache()
{
if (d->next_persistent_id)
return true;
if (!Core::getInstance().isWorldLoaded())
return false;
std::vector<df::historical_figure*> &hfvec = df::historical_figure::get_vector();
int new_id = -100;
if (hfvec.size() > 0 && hfvec[0]->id <= new_id)
new_id = hfvec[0]->id-1;
// Determine the next entry id as min(-100, lowest_id-1)
d->next_persistent_id = -100;
if (hfvec.size() > 0 && hfvec[0]->id <= -100)
d->next_persistent_id = hfvec[0]->id-1;
// Add the entries to the lookup table
d->persistent_index.clear();
for (size_t i = 0; i < hfvec.size() && hfvec[i]->id <= -100; i++)
{
if (!hfvec[i]->name.has_name || hfvec[i]->name.first_name.empty())
continue;
d->persistent_index.insert(T_persistent_item(hfvec[i]->name.first_name, -hfvec[i]->id));
}
}
PersistentDataItem World::AddPersistentData(const std::string &key)
{
if (!BuildPersistentCache() || key.empty())
return PersistentDataItem();
std::vector<df::historical_figure*> &hfvec = df::historical_figure::get_vector();
df::historical_figure *hfig = new df::historical_figure();
hfig->id = new_id;
hfig->id = d->next_persistent_id--;
hfig->name.has_name = true;
hfig->name.first_name = key;
memset(hfig->name.words, 0xFF, sizeof(hfig->name.words));
hfvec.insert(hfvec.begin(), hfig);
d->persistent_index.insert(T_persistent_item(key, -hfig->id));
return dataFromHFig(hfig);
}
PersistentDataItem World::GetPersistentData(const std::string &key)
{
std::vector<df::historical_figure*> &hfvec = df::historical_figure::get_vector();
for (size_t i = 0; i < hfvec.size(); i++)
{
df::historical_figure *hfig = hfvec[i];
if (!BuildPersistentCache())
return PersistentDataItem();
if (hfig->id >= 0)
break;
auto it = d->persistent_index.find(key);
if (it != d->persistent_index.end())
return GetPersistentData(it->second);
if (hfig->name.has_name && hfig->name.first_name == key)
return dataFromHFig(hfig);
return PersistentDataItem();
}
PersistentDataItem World::GetPersistentData(int entry_id)
{
if (entry_id < 100)
return PersistentDataItem();
auto hfig = df::historical_figure::find(-entry_id);
if (hfig && hfig->name.has_name)
return dataFromHFig(hfig);
return PersistentDataItem();
}
void World::GetPersistentData(std::vector<PersistentDataItem> *vec, const std::string &key)
void World::GetPersistentData(std::vector<PersistentDataItem> *vec, const std::string &key, bool prefix)
{
std::vector<df::historical_figure*> &hfvec = df::historical_figure::get_vector();
for (size_t i = 0; i < hfvec.size(); i++)
if (!BuildPersistentCache())
return;
auto eqrange = d->persistent_index.equal_range(key);
if (prefix)
{
if (key.empty())
{
eqrange.first = d->persistent_index.begin();
eqrange.second = d->persistent_index.end();
}
else
{
df::historical_figure *hfig = hfvec[i];
std::string bound = key;
if (bound[bound.size()-1] != '/')
bound += "/";
eqrange.first = d->persistent_index.lower_bound(bound);
if (hfig->id >= 0)
break;
bound[bound.size()-1]++;
eqrange.second = d->persistent_index.lower_bound(bound);
}
}
if (hfig->name.has_name && hfig->name.first_name == key)
for (auto it = eqrange.first; it != eqrange.second; ++it)
{
auto hfig = df::historical_figure::find(-it->second);
if (hfig && hfig->name.has_name)
vec->push_back(dataFromHFig(hfig));
}
}
void World::DeletePersistentData(const PersistentDataItem &item)
bool World::DeletePersistentData(const PersistentDataItem &item)
{
if (item.id > -100)
return;
return false;
if (!BuildPersistentCache())
return false;
std::vector<df::historical_figure*> &hfvec = df::historical_figure::get_vector();
auto eqrange = d->persistent_index.equal_range(item.key_value);
for (auto it = eqrange.first; it != eqrange.second; ++it)
{
if (it->second != -item.id)
continue;
d->persistent_index.erase(it);
int idx = binsearch_index(hfvec, item.id);
if (idx >= 0) {
delete hfvec[idx];
hfvec.erase(hfvec.begin()+idx);
}
return true;
}
return false;
}

2
library/xml

@ -1 +1 @@
Subproject commit 6acc7f14274343319a61d6118afdc669ee2ff485
Subproject commit b630809b25a3e3b541e40f0cb145b6f5bd3b7316

1
package/linux/dfhack
Unescape Escape View File

@ -41,6 +41,7 @@ case "$1" in
-g | --gdb)
shift
echo "set environment LD_PRELOAD=./hack/libdfhack.so" > gdbcmd.tmp
echo "set environment MALLOC_PERTURB_=45" >> gdbcmd.tmp
gdb $DF_GDB_OPTS -x gdbcmd.tmp ./libs/Dwarf_Fortress $*
rm gdbcmd.tmp
ret=$?

104
plugins/Dfusion/dfusion.cpp
Unescape Escape View File

@ -21,6 +21,7 @@
#include "lua_FunctionCall.h"
#include "lua_Offsets.h"
#include "DataDefs.h"
#include "LuaTools.h"
using std::vector;
using std::string;
@ -42,11 +43,12 @@ DFhackCExport const char * plugin_name ( void )
return "dfusion";
}
DFhackCExport command_result plugin_init ( Core * c, std::vector <PluginCommand> &commands)
DFhackCExport command_result plugin_init (color_ostream &out, std::vector <PluginCommand> &commands)
{
lua::state st=lua::glua::Get();
//maybe remake it to run automaticaly
DFHack::AttachDFGlobals(st);
Lua::Open(out, st);
lua::RegisterConsole(st);
lua::RegisterProcess(st);
@ -64,11 +66,6 @@ DFhackCExport command_result plugin_init ( Core * c, std::vector <PluginCommand>
st.setglobal("WINDOWS");
#endif
st.getglobal("Console");
st.getfield("println");
st.setglobal("print");
st.pop();
commands.push_back(PluginCommand("dfusion","Run dfusion system (interactive i.e. can input further commands).",dfusion,true));
commands.push_back(PluginCommand("dfuse","Init dfusion system (not interactive).",dfuse,false));
commands.push_back(PluginCommand("lua", "Run interactive interpreter. Use 'lua <filename>' to run <filename> instead.",lua_run,true));
@ -113,87 +110,6 @@ DFhackCExport command_result plugin_onupdate_DISABLED ( Core * c )
mymutex->unlock();
return CR_OK;
}
void InterpreterLoop(color_ostream &out)
{
DFHack::CommandHistory hist;
lua::state s=lua::glua::Get();
string curline;
out.print("Type quit to exit interactive lua interpreter.\n"
"Shortcuts:\n"
" '= foo' => '_1,_2,... = foo'\n"
" '! foo' => 'print(foo)'\n"
"Both assign the first result to '_'\n");
assert(out.is_console());
Console &con = static_cast<Console&>(out);
int vcnt = 1;
s.settop(0);
for (;;) {
con.lineedit("[lua]# ",curline,hist);
if (curline.empty())
continue;
if (curline == "quit")
break;
hist.add(curline);
try
{
char pfix = curline[0];
if (pfix == '=' || pfix == '!')
{
curline = "return " + curline.substr(1);
s.loadstring(curline);
s.pcall(0, LUA_MULTRET);
int numret = s.gettop();
if (numret >= 1)
{
s.pushvalue(1);
s.setglobal("_");
if (pfix == '!')
{
s.getglobal("print");
s.insert(1);
s.pcall(numret,0);
numret = 0;
}
}
for (int i = 1; i <= numret; i++)
{
std::string name = stl_sprintf("_%d", vcnt++);
s.pushvalue(i);
s.setglobal(name);
con.print("%s = ", name.c_str());
s.getglobal("print");
s.pushvalue(i);
s.pcall(1,0);
}
}
else
{
s.loadstring(curline);
s.pcall();
}
}
catch(lua::exception &e)
{
con.printerr("Error:%s\n",e.what());
con.printerr("%s\n",lua::DebugDump(lua::glua::Get()).c_str());
}
s.settop(0);
}
}
command_result lua_run_file (color_ostream &out, std::vector <std::string> &parameters)
{
if(parameters.size()==0)
@ -207,14 +123,14 @@ command_result lua_run (color_ostream &out, std::vector <std::string> &parameter
{
mymutex->lock();
lua::state s=lua::glua::Get();
lua::SetConsole(s,out);
if(parameters.size()>0)
{
try{
s.loadfile(parameters[0]); //load file
for(size_t i=1;i<parameters.size();i++)
s.push(parameters[i]);
s.pcall(parameters.size()-1,0);// run it
Lua::SafeCall(out, s, parameters.size()-1,0);// run it
}
catch(lua::exception &e)
{
@ -224,7 +140,7 @@ command_result lua_run (color_ostream &out, std::vector <std::string> &parameter
}
else
{
InterpreterLoop(out);
Lua::InterpreterLoop(out, s);
}
s.settop(0);// clean up
mymutex->unlock();
@ -235,12 +151,10 @@ void RunDfusion(color_ostream &out, std::vector <std::string> &parameters)
mymutex->lock();
lua::state s=lua::glua::Get();
try{
s.getglobal("err");
int errpos=s.gettop();
s.loadfile("dfusion/init.lua"); //load script
for(size_t i=0;i<parameters.size();i++)
s.push(parameters[i]);
s.pcall(parameters.size(),0,errpos);// run it
Lua::SafeCall(out, s, parameters.size(),0);
}
catch(lua::exception &e)
{
@ -253,7 +167,6 @@ void RunDfusion(color_ostream &out, std::vector <std::string> &parameters)
command_result dfuse(color_ostream &out, std::vector <std::string> &parameters)
{
lua::state s=lua::glua::Get();
lua::SetConsole(s,out);
s.push(1);
s.setglobal("INIT");
RunDfusion(out,parameters);
@ -262,7 +175,6 @@ command_result dfuse(color_ostream &out, std::vector <std::string> &parameters)
command_result dfusion (color_ostream &out, std::vector <std::string> &parameters)
{
lua::state s=lua::glua::Get();
lua::SetConsole(s,out);
s.push();
s.setglobal("INIT");
RunDfusion(out,parameters);

2
plugins/Dfusion/include/lua_Console.h
Unescape Escape View File

@ -7,7 +7,7 @@ namespace lua
{
void RegisterConsole(lua::state &st);
void SetConsole(lua::state &st,DFHack::color_ostream& stream);
}
#endif

4
plugins/Dfusion/include/luamain.h
Unescape Escape View File

@ -31,8 +31,8 @@ namespace lua
//dumps lua function trace, useless unless called from lua.
string DebugDump(lua::state &L);
//register functions, first registers into global scope, second into current table
void RegFunctions(lua::state &L,luaL_reg const *arr);
void RegFunctionsLocal(lua::state &L,luaL_reg const *arr);
void RegFunctions(lua::state &L,luaL_Reg const *arr);
void RegFunctionsLocal(lua::state &L,luaL_Reg const *arr);
}

5
plugins/Dfusion/include/lune.h
Unescape Escape View File

@ -139,9 +139,8 @@ public:
// store method table in globals so that
// scripts can add functions written in Lua.
lua_pushstring(L, T::className);
lua_pushvalue(L, methods);
lua_settable(L, LUA_GLOBALSINDEX);
lua_setglobal(L, T::className);
lua_pushliteral(L, "__metatable");
lua_pushvalue(L, methods);
@ -212,7 +211,7 @@ public:
userdataType *ud =
static_cast<userdataType*>(luaL_checkudata(L, narg, T::className)); //TODO FIX THIs..
//(lua_touserdata(L, narg));//
if(!ud) luaL_typerror(L, narg, T::className);
if(!ud) luaL_error(L, "Bad argument %d: expected type %s", narg, T::className);
return ud->pT; // pointer to T object
}
protected:

6
plugins/Dfusion/luafiles/friendship/init.lua
Unescape Escape View File

@ -14,9 +14,9 @@ function analyzeF(off)
return pos
end
end
function minEx(...)
local imin=arg[1]
for _,v in ipairs(arg) do
function minEx(list)
local imin=list[1]
for _,v in ipairs(list) do
if imin> v and v~=0 then
imin=v
end

5
plugins/Dfusion/luafiles/friendship/patch.lua
Unescape Escape View File

@ -11,8 +11,7 @@ function friendship_in.patch()
pos3=offsets.find(pos+7,0xa1,DWORD_,crace) -- mov eax,[ptr]
pos4=offsets.find(pos+7,0x66,0x8b,ANYBYTE,DWORD_,crace) -- mov ANYREG,[ptr]
--pos5=offsets.find(pos+7,0x66,0x8b,0x15,DWORD_,crace) -- mov dx,[ptr]
pos=minEx(pos1,pos2,pos3,pos4)
pos=minEx{pos1,pos2,pos3,pos4}
if pos ~=0 then
hits[i]=pos
i=i+1
@ -28,7 +27,7 @@ function friendship_in.patch()
--TODO read offset from memory.xml
pos1=offsets.find(myp,0x39,ANYBYTE,0x8c,00,00,00) -- compare [reg+08c] (creature race) with any reg
pos2=offsets.find(myp,0x3b,ANYBYTE,0x8c,00,00,00) -- compare any reg with [reg+08c] (creature race)
pos=minEx(pos1,pos2)
pos=minEx{pos1,pos2}
if pos ~=0 then
if(pos-p>250) then

8
plugins/Dfusion/luafiles/init.lua
Unescape Escape View File

@ -1,3 +1,7 @@
Console.print = dfhack.print
Console.println = dfhack.println
Console.printerr = dfhack.printerr
function err(msg) --make local maybe...
print(msg)
print(debug.traceback())
@ -14,6 +18,10 @@ function dofile_silent(filename) --safer dofile, with traceback, no file not fou
f,perr=loadfile(filename)
if f~=nil then
return xpcall(f,err)
else
if(string.sub(perr,1,11)~="cannot open") then --ugly hack
print(perr)
end
end
end
function loadall(t1) --loads all non interactive plugin parts, so that later they could be used

24
plugins/Dfusion/luafiles/tools/init.lua
Unescape Escape View File

@ -289,29 +289,19 @@ function tools.empregnate(unit)
if unit.curse then
unit.curse.add_tags2.STERILE=false
end
local arr1=unit.appearance.unk_51c
local arr2=unit.appearance.unk_524
local genes = unit.appearance.genes
if unit.relations.pregnancy_ptr == nil then
print("creating preg ptr.")
if false then
print(string.format("%x %x",df.sizeof(unit.relations:_field("pregnancy_ptr"))))
return
end
unit.relations.pregnancy_ptr={ new = true, anon_1 = { assign = arr1 }, anon_2 = { assign = arr2 } }
end
local tarr1=unit.relations.pregnancy_ptr.anon_1
local tarr2=unit.relations.pregnancy_ptr.anon_2
if #tarr1~= #arr1 then
print("First array incorrect, fixing.")
print(string.format("Before: %d vs %d",#tarr1,#arr1))
tarr1:assign(arr1)
print(string.format("after: %d vs %d",#tarr1,#arr1))
end
if created or #tarr2~= #arr2 then
print("Second array incorrect, fixing.")
print(string.format("Before: %d vs %d",#tarr2,#arr2))
tarr2:assign(arr2)
print(string.format("after: %d vs %d",#tarr2,#arr2))
unit.relations.pregnancy_ptr = { new = true, assign = genes }
end
local ngenes = unit.relations.pregnancy_ptr
if #ngenes.appearance ~= #genes.appearance or #ngenes.colors ~= #genes.colors then
print("Array sizes incorrect, fixing.")
ngenes:assign(genes);
end
print("Setting preg timer.")
unit.relations.pregnancy_timer=10

73
plugins/Dfusion/src/lua_Console.cpp
Unescape Escape View File

@ -1,64 +1,12 @@
#include "lua_Console.h"
#include "LuaTools.h"
#include <sstream>
//TODO error management. Using lua error? or something other?
static DFHack::color_ostream* GetConsolePtr(lua::state &st)
{
int t=st.gettop();
st.getglobal("Console");
st.getfield("__pointer");
DFHack::color_ostream* c=static_cast<DFHack::color_ostream*>(lua_touserdata(st,-1));
st.settop(t);
return c;
}
static std::string lua_print_fmt(lua_State *L)
{
/* Copied from lua source to fully replicate builtin print */
int n = lua_gettop(L); /* number of arguments */
lua_getglobal(L, "tostring");
std::stringstream ss;
for (int i=1; i<=n; i++) {
lua_pushvalue(L, -1); /* function to be called */
lua_pushvalue(L, i); /* value to print */
lua_call(L, 1, 1);
const char *s = lua_tostring(L, -1); /* get result */
if (s == NULL)
luaL_error(L, "tostring must return a string to print");
if (i>1)
ss << '\t';
ss << s;
lua_pop(L, 1); /* pop result */
}
return ss.str();
}
static int lua_Console_print(lua_State *S)
{
lua::state st(S);
DFHack::color_ostream* c=GetConsolePtr(st);
c->print("%s", lua_print_fmt(S).c_str());
return 0;
}
static int lua_Console_println(lua_State *S)
{
lua::state st(S);
DFHack::color_ostream* c=GetConsolePtr(st);
c->print("%s\n", lua_print_fmt(S).c_str());
return 0;
}
static int lua_Console_printerr(lua_State *S)
{
lua::state st(S);
DFHack::color_ostream* c=GetConsolePtr(st);
c->printerr("%s", lua_print_fmt(S).c_str());
return 0;
return DFHack::Lua::GetOutput(st);
}
static int lua_Console_clear(lua_State *S)
@ -156,9 +104,6 @@ static int lua_Console_lineedit(lua_State *S)
}
const luaL_Reg lua_console_func[]=
{
{"print",lua_Console_print},
{"println",lua_Console_println},
{"printerr",lua_Console_printerr},
{"clear",lua_Console_clear},
{"gotoxy",lua_Console_gotoxy},
{"color",lua_Console_color},
@ -183,17 +128,3 @@ void lua::RegisterConsole(lua::state &st)
//TODO add color consts
st.setglobal("Console");
}
void lua::SetConsole(lua::state &st,DFHack::color_ostream& stream)
{
int top=st.gettop();
st.getglobal("Console");
if(st.is<lua::nil>())
{
st.pop();
st.newtable();
}
st.pushlightuserdata(&stream);
st.setfield("__pointer");
st.settop(top);
}

10
plugins/Dfusion/src/luamain.cpp
Unescape Escape View File

@ -23,7 +23,7 @@ int lua_Ver_Lua(lua_State *L)
}
static const struct luaL_reg lua_basic_lib [] =
static const struct luaL_Reg lua_basic_lib [] =
{
{"getluaver", lua_Ver_Lua},
{NULL, NULL} /* sentinel */
@ -34,9 +34,9 @@ void lua::RegBasics(lua::state &L)
RegFunctions(L,lua_basic_lib);
}
void lua::RegFunctions(lua::state &L,luaL_reg const*arr)
void lua::RegFunctions(lua::state &L,luaL_Reg const*arr)
{
luaL_reg const *cur=arr;
luaL_Reg const *cur=arr;
while(cur->name!=NULL)
{
lua_pushcfunction(L, cur->func);
@ -45,9 +45,9 @@ void lua::RegFunctions(lua::state &L,luaL_reg const*arr)
cur++;
}
}
void lua::RegFunctionsLocal(lua::state &L,luaL_reg const*arr)
void lua::RegFunctionsLocal(lua::state &L,luaL_Reg const*arr)
{
luaL_reg const *cur=arr;
luaL_Reg const *cur=arr;
while(cur->name!=NULL)
{
lua_pushcfunction(L, cur->func);

20
plugins/Dfusion/src/luaxx.cc
Unescape Escape View File

@ -215,7 +215,11 @@ namespace lua
template<>
std::string state::as(std::string default_value, int index) {
if (lua_isstring(L, index))
return std::string(lua_tostring(L, index), lua_strlen(L, index));
{
size_t len;
const char *str = lua_tolstring(L, index, &len);
return std::string(str, len);
}
else
return default_value;
}
@ -674,7 +678,7 @@ namespace lua
* @returns the length of the indicated value
*/
size_t state::objlen(int index) {
return lua_objlen(L, index);
return lua_rawlen(L, index);
}
/** Get the value at index as a bool.
@ -715,7 +719,11 @@ namespace lua
template<>
state& state::to(std::string& string, int index) {
if (lua_isstring(L, index))
string.replace(0, std::string::npos, lua_tostring(L, index), lua_strlen(L, index));
{
size_t len;
const char *str = lua_tolstring(L, index, &len);
string.replace(0, std::string::npos, str, len);
}
else
throw bad_conversion("Cannot convert value to string");
@ -755,7 +763,11 @@ namespace lua
template<>
std::string state::as(int index) {
if (lua_isstring(L, index))
return std::string(lua_tostring(L, index), lua_strlen(L, index));
{
size_t len;
const char *str = lua_tolstring(L, index, &len);
return std::string(str, len);
}
else
throw bad_conversion("Cannot convert value to string");
}

4
plugins/advtools.cpp
Unescape Escape View File

@ -101,8 +101,8 @@ static bool in_transient_swap = false;
DFhackCExport command_result plugin_onstatechange(color_ostream &out, state_change_event event)
{
switch (event) {
case SC_GAME_LOADED:
case SC_GAME_UNLOADED:
case SC_WORLD_LOADED:
case SC_WORLD_UNLOADED:
in_transient_swap = false;
break;
default:

9
plugins/autolabor.cpp
Unescape Escape View File

@ -29,7 +29,7 @@ using df::global::world;
#define ARRAY_COUNT(array) (sizeof(array)/sizeof((array)[0]))
static int enable_autolabor;
static int enable_autolabor = 0;
// Here go all the command declarations...
@ -467,9 +467,12 @@ struct values_sorter
DFhackCExport command_result plugin_onupdate ( color_ostream &out )
{
static int step_count = 0;
if (!enable_autolabor)
// check run conditions
if(!world->map.block_index || !enable_autolabor)
{
// give up if we shouldn't be running'
return CR_OK;
}
if (++step_count < 60)
return CR_OK;

56
plugins/changeitem.cpp
Unescape Escape View File

@ -22,6 +22,7 @@ using namespace std;
#include "DataDefs.h"
#include "df/item.h"
#include "df/itemdef.h"
#include "df/world.h"
#include "df/general_ref.h"
@ -50,6 +51,7 @@ const string changeitem_help =
" info - don't change anything, print some item info instead\n"
" here - change all items at cursor position\n"
" material, m - change material. must be followed by material RAW id\n"
" subtype, s - change subtype. must be followed by correct RAW id\n"
" quality, q - change base quality. must be followed by number (0-5)\n"
" force - ignore subtypes, force change to new material.\n"
"Example:\n"
@ -102,7 +104,8 @@ command_result changeitem_execute(
color_ostream &out, df::item * item,
bool info, bool force,
bool change_material, string new_material,
bool change_quality, int new_quality);
bool change_quality, int new_quality,
bool change_subtype, string new_subtype);
command_result df_changeitem(color_ostream &out, vector <string> & parameters)
{
@ -115,6 +118,9 @@ command_result df_changeitem(color_ostream &out, vector <string> & parameters)
bool change_material = false;
string new_material = "none";
bool change_subtype = false;
string new_subtype = "NONE";
bool change_quality = false;
int new_quality = 0;
@ -183,6 +189,19 @@ command_result df_changeitem(color_ostream &out, vector <string> & parameters)
change_quality = true;
i++;
}
else if (p == "subtype" || p == "s" )
{
// must be followed by subtype RAW id
// (string like 'ITEM_GLOVES_GAUNTLETS', 'ITEM_WEAPON_DAGGER_LARGE', 'ITEM_TOOL_KNIFE_MEAT_CLEAVER', ...)
if(i == parameters.size()-1)
{
out.printerr("no subtype specified!\n");
return CR_WRONG_USAGE;
}
change_subtype = true;
new_subtype = parameters[i+1];
i++;
}
else
{
out << p << ": Unknown command!" << endl;
@ -246,7 +265,7 @@ command_result df_changeitem(color_ostream &out, vector <string> & parameters)
if (pos_item != pos_cursor)
continue;
changeitem_execute(out, item, info, force, change_material, new_material, change_quality, new_quality);
changeitem_execute(out, item, info, force, change_material, new_material, change_quality, new_quality, change_subtype, new_subtype);
processed_total++;
}
out.print("Done. %d items processed.\n", processed_total);
@ -260,7 +279,7 @@ command_result df_changeitem(color_ostream &out, vector <string> & parameters)
out.printerr("No item selected.\n");
return CR_FAILURE;
}
changeitem_execute(out, item, info, force, change_material, new_material, change_quality, new_quality);
changeitem_execute(out, item, info, force, change_material, new_material, change_quality, new_quality, change_subtype, new_subtype);
}
return CR_OK;
}
@ -269,20 +288,43 @@ command_result changeitem_execute(
color_ostream &out, df::item * item,
bool info, bool force,
bool change_material, string new_material,
bool change_quality, int new_quality )
bool change_quality, int new_quality,
bool change_subtype, string new_subtype )
{
MaterialInfo mat_new;
MaterialInfo mat_old;
ItemTypeInfo sub_old;
ItemTypeInfo sub_new;
int new_subtype_id = -1;
if(change_material)
mat_new.find(new_material);
if(change_material || info)
mat_old.decode(item);
if(change_subtype || info)
sub_old.decode(item);
if(change_subtype)
{
string new_type = ENUM_KEY_STR(item_type, item->getType()) + ":" + new_subtype;
if (new_subtype == "NONE")
new_subtype_id = -1;
else if (sub_new.find(new_type))
new_subtype_id = sub_new.subtype;
else
{
// out.printerr("Invalid subtype for selected item, skipping\n");
return CR_FAILURE;
}
}
// print some info, don't change stuff
if(info)
{
out << "Item info: " << endl;
out << " type: " << ENUM_KEY_STR(item_type, item->getType()) << endl;
out << " subtype: " << (sub_old.custom ? sub_old.custom->id : "NONE") << endl;
out << " quality: " << describeQuality(item->getQuality()) << endl;
//if(item->isImproved())
// out << " imp.quality: " << describeQuality(item->getImprovementQuality()) << endl;
@ -319,5 +361,11 @@ command_result changeitem_execute(
item->flags.bits.temps_computed = 0; // recalc temperatures next time touched
item->flags.bits.weight_computed = 0; // recalc weight next time touched
}
if(change_subtype)
{
item->setSubtype(new_subtype_id);
item->flags.bits.weight_computed = 0; // recalc weight next time touched
}
return CR_OK;
}

1
plugins/devel/CMakeLists.txt
Unescape Escape View File

@ -14,4 +14,5 @@ DFHACK_PLUGIN(frozen frozen.cpp)
DFHACK_PLUGIN(dumpmats dumpmats.cpp)
#DFHACK_PLUGIN(tiles tiles.cpp)
DFHACK_PLUGIN(regrass regrass.cpp)
DFHACK_PLUGIN(counters counters.cpp)

8
plugins/devel/catsplosion.cpp
Unescape Escape View File

@ -22,6 +22,7 @@ using namespace std;
#include "DataDefs.h"
#include <df/caste_raw.h>
#include <df/creature_raw.h>
#include <df/unit_genes.h>
using namespace DFHack;
@ -46,7 +47,6 @@ DFhackCExport command_result plugin_shutdown ( color_ostream &out )
return CR_OK;
}
typedef df::unit::T_relations::T_pregnancy_ptr pregstruct;
command_result catsplosion (color_ostream &out, std::vector <std::string> & parameters)
{
list<string> s_creatures;
@ -122,9 +122,9 @@ command_result catsplosion (color_ostream &out, std::vector <std::string> & para
}
else if(!female->relations.pregnancy_ptr)
{
pregstruct * preg = new pregstruct;
preg->anon_1 = female->appearance.unk_51c;
preg->anon_2 = female->appearance.unk_524;
df::unit_genes *preg = new df::unit_genes;
preg->appearance = female->appearance.genes.appearance;
preg->colors = female->appearance.genes.colors;
female->relations.pregnancy_ptr = preg;
female->relations.pregnancy_timer = rand() % 100 + 1;
female->relations.pregnancy_mystery = 1; // WTF is this?

47
plugins/devel/counters.cpp
Unescape Escape View File

@ -0,0 +1,47 @@
// Show creature counter values
#include "Core.h"
#include "Console.h"
#include "Export.h"
#include "PluginManager.h"
#include "modules/Gui.h"
#include "df/unit.h"
#include "df/unit_misc_trait.h"
using std::vector;
using std::string;
using namespace DFHack;
using namespace df::enums;
command_result df_counters (color_ostream &out, vector <string> & parameters)
{
CoreSuspender suspend;
df::unit *unit = Gui::getSelectedUnit(out);
if (!unit)
return CR_WRONG_USAGE;
auto &counters = unit->status.misc_traits;
for (size_t i = 0; i < counters.size(); i++)
{
auto counter = counters[i];
out.print("%i (%s): %i\n", counter->id, ENUM_KEY_STR(unit_misc_trait::T_id, counter->id).c_str(), counter->value);
}
return CR_OK;
}
DFHACK_PLUGIN("probe");
DFhackCExport command_result plugin_init ( color_ostream &out, std::vector <PluginCommand> &commands)
{
commands.push_back(PluginCommand("counters",
"Display counters for currently selected creature",
df_counters));
return CR_OK;
}
DFhackCExport command_result plugin_shutdown ( color_ostream &out )
{
return CR_OK;
}

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