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Temporary tweak: patch in __pairs and __ipairs from 5.2 into lua 5.1.

develop
Alexander Gavrilov 2012-03-29 11:32:22 +04:00
parent 17ff235c81
commit f6c6218909
1 changed files with 22 additions and 8 deletions
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30
depends/lua/src/lbaselib.c
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@ -236,10 +236,17 @@ static int luaB_next (lua_State *L) {
static int luaB_pairs (lua_State *L) {
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 */
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;
}
@ -255,10 +262,17 @@ static int ipairsaux (lua_State *L) {
static int luaB_ipairs (lua_State *L) {
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 */
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;
}