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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) fixed_t LUA_EvalMath(const char *word)
{ {
static int fenv_ref = LUA_NOREF; static int enum_env = LUA_NOREF;
lua_State *L = LUA_EnumState(); lua_State *L = LUA_EnumState();
char buf[1024], *b; char buf[1024], *b;
@ -693,19 +693,19 @@ fixed_t LUA_EvalMath(const char *word)
} }
*b = '\0'; *b = '\0';
if (fenv_ref == LUA_NOREF) if (enum_env == LUA_NOREF)
{ {
lua_createtable(L, 0, 1); lua_createtable(L, 0, 1);
lua_getmetatable(L, LUA_GLOBALSINDEX); lua_getmetatable(L, LUA_GLOBALSINDEX);
lua_setmetatable(L, -2); lua_setmetatable(L, -2);
fenv_ref = luaL_ref(L, LUA_REGISTRYINDEX); enum_env = luaL_ref(L, LUA_REGISTRYINDEX);
} }
lua_settop(L, 0); lua_settop(L, 0);
lua_pushthread(L); lua_pushvalue(L, LUA_GLOBALSINDEX);
lua_getref(L, fenv_ref); lua_getref(L, enum_env);
lua_setfenv(L, 1); lua_replace(L, LUA_GLOBALSINDEX);
lua_mathlib = true; lua_mathlib = true;
@ -722,8 +722,8 @@ fixed_t LUA_EvalMath(const char *word)
lua_mathlib = false; lua_mathlib = false;
lua_pushvalue(L, LUA_GLOBALSINDEX); lua_settop(L, 1);
lua_setfenv(L, 1); lua_replace(L, LUA_GLOBALSINDEX);
return res; return res;
} }