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Whoops I did not understand that setfenv simply replaces the global table anyway

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This commit is contained in:
James R 2020-12-14 05:25:51 -08:00
parent da1ef9376c
commit 8b41ee62c0
1 changed files with 8 additions and 8 deletions
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16
src/lua_script.c
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@ -675,7 +675,7 @@ void LUA_DumpFile(const char *filename)
fixed_t LUA_EvalMath(const char *word)
{
static int fenv_ref = LUA_NOREF;
static int enum_env = LUA_NOREF;
lua_State *L = LUA_EnumState();
char buf[1024], *b;
@ -693,19 +693,19 @@ fixed_t LUA_EvalMath(const char *word)
}
*b = '\0';
if (fenv_ref == LUA_NOREF)
if (enum_env == LUA_NOREF)
{
lua_createtable(L, 0, 1);
lua_getmetatable(L, LUA_GLOBALSINDEX);
lua_setmetatable(L, -2);
fenv_ref = luaL_ref(L, LUA_REGISTRYINDEX);
enum_env = luaL_ref(L, LUA_REGISTRYINDEX);
}
lua_settop(L, 0);
lua_pushthread(L);
lua_pushvalue(L, LUA_GLOBALSINDEX);
lua_getref(L, fenv_ref);
lua_setfenv(L, 1);
lua_getref(L, enum_env);
lua_replace(L, LUA_GLOBALSINDEX);
lua_mathlib = true;
@ -722,8 +722,8 @@ fixed_t LUA_EvalMath(const char *word)
lua_mathlib = false;
lua_pushvalue(L, LUA_GLOBALSINDEX);
lua_setfenv(L, 1);
lua_settop(L, 1);
lua_replace(L, LUA_GLOBALSINDEX);
return res;
}