72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
#include <string>
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#include "Core.h"
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#include "LuaTools.h"
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#include "LuaWrapper.h"
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using namespace DFHack;
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using namespace DFHack::LuaWrapper;
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using namespace std;
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namespace memutils {
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static lua_State *state;
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static color_ostream_proxy *out;
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struct initializer {
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Lua::StackUnwinder *unwinder;
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initializer()
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{
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if (!out)
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out = new color_ostream_proxy(Core::getInstance().getConsole());
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if (!state)
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state = Lua::Open(*out);
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unwinder = new Lua::StackUnwinder(state);
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}
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~initializer()
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{
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delete unwinder;
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}
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};
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struct cleaner {
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~cleaner()
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{
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if (state)
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{
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lua_close(state);
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state = NULL;
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}
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if (out)
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{
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delete out;
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out = NULL;
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}
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}
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};
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static cleaner g_cleaner;
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void *lua_expr_to_addr(const char *expr)
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{
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initializer init;
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Lua::PushModulePublic(*out, state, "utils", "df_expr_to_ref");
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lua_pushstring(state, expr);
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if (!Lua::SafeCall(*out, state, 1, 1))
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{
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out->printerr("Failed to evaluate %s\n", expr);
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return NULL;
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}
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Lua::PushModulePublic(*out, state, "utils", "addressof");
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lua_swap(state);
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if (!Lua::SafeCall(*out, state, 1, 1) || !lua_isinteger(state, -1))
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{
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out->printerr("Failed to get address: %s\n", expr);
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return NULL;
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}
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auto addr = uintptr_t(lua_tointeger(state, -1));
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return (void*)addr;
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}
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}
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