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`__globals' -> `__fenv'

This commit is contained in:
Roberto Ierusalimschy 2003-03-19 18:14:34 -03:00
parent b12776f29c
commit 5a144e891a
1 changed files with 9 additions and 8 deletions
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17
lbaselib.c
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@ -1,5 +1,5 @@
/*
** $Id: lbaselib.c,v 1.127 2003/03/11 12:24:34 roberto Exp roberto $
** $Id: lbaselib.c,v 1.128 2003/03/11 18:17:43 roberto Exp roberto $
** Basic library
** See Copyright Notice in lua.h
*/
@ -132,7 +132,7 @@ static void getfunc (lua_State *L) {
static int aux_getfenv (lua_State *L) {
lua_getfenv(L, -1);
lua_pushliteral(L, "__globals");
lua_pushliteral(L, "__fenv");
lua_rawget(L, -2);
return !lua_isnil(L, -1);
}
@ -140,7 +140,7 @@ static int aux_getfenv (lua_State *L) {
static int luaB_getfenv (lua_State *L) {
getfunc(L);
if (!aux_getfenv(L)) /* __globals not defined? */
if (!aux_getfenv(L)) /* __fenv not defined? */
lua_pop(L, 1); /* remove it, to return real environment */
return 1;
}
@ -149,15 +149,15 @@ static int luaB_getfenv (lua_State *L) {
static int luaB_setfenv (lua_State *L) {
luaL_checktype(L, 2, LUA_TTABLE);
getfunc(L);
if (aux_getfenv(L)) /* __globals defined? */
luaL_error(L, "cannot change a protected global table");
if (aux_getfenv(L)) /* __fenv defined? */
luaL_error(L, "`setfenv' cannot change a protected environment");
else
lua_pop(L, 2); /* remove __globals and real environment table */
lua_pop(L, 2); /* remove __fenv and real environment table */
lua_pushvalue(L, 2);
if (lua_isnumber(L, 1) && lua_tonumber(L, 1) == 0)
lua_replace(L, LUA_GLOBALSINDEX);
else if (lua_setfenv(L, -2) == 0)
luaL_error(L, "cannot change environment of given function");
luaL_error(L, "`setfenv' cannot change environment of given function");
return 0;
}
@ -495,7 +495,8 @@ static int luaB_require (lua_State *L) {
lua_tostring(L, 1), getpath(L));
}
default: {
return luaL_error(L, "error loading package\n%s", lua_tostring(L, -1));
return luaL_error(L, "error loading package `%s' (%s)",
lua_tostring(L, 1), lua_tostring(L, -1));
}
}
}