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re-implementation of deprecated functions (wiht compiler option)

This commit is contained in:
Roberto Ierusalimschy 2000-09-13 16:52:39 -03:00
parent 0b3b6850c9
commit 2628a42480
1 changed files with 45 additions and 14 deletions
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59
lbaselib.c
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@ -1,5 +1,5 @@
/*
** $Id: lbaselib.c,v 1.2 2000/09/12 13:49:05 roberto Exp roberto $
** $Id: lbaselib.c,v 1.3 2000/09/12 18:41:43 roberto Exp roberto $
** Basic library
** See Copyright Notice in lua.h
*/
@ -534,32 +534,63 @@ static int luaB_sort (lua_State *L) {
*/
/*
** gives an explicit error in any attempt to call a deprecated function
*/
static int deprecated_func (lua_State *L) {
luaL_verror(L, "function `%.20s' is deprecated", luaL_check_string(L, -1));
return 0; /* to avoid warnings */
}
#define num_deprecated 4
static const char *const deprecated_names [num_deprecated] = {
"foreachvar", "nextvar", "rawgetglobal", "rawsetglobal"
static const struct luaL_reg deprecated_names [num_deprecated] = {
{"foreachvar", luaB_foreach},
{"nextvar", luaB_next},
{"rawgetglobal", luaB_rawget},
{"rawsetglobal", luaB_rawset}
};
#ifdef LUA_DEPRECATETFUNCS
/*
** call corresponding function inserting `globals' as first argument
*/
static int deprecated_func (lua_State *L) {
lua_insert(L, 1); /* upvalue is the function to be called */
lua_getglobals(L);
lua_insert(L, 2); /* table of globals is 1o argument */
if (lua_call(L, lua_gettop(L)-1, LUA_MULTRET) != 0)
lua_error(L, NULL);
return lua_gettop(L); /* return all results */
}
static void deprecated_funcs (lua_State *L) {
int i;
for (i=0; i<num_deprecated; i++) {
lua_pushstring(L, deprecated_names[i]);
lua_pushcfunction(L, deprecated_names[i].func);
lua_pushcclosure(L, deprecated_func, 1);
lua_setglobal(L, deprecated_names[i]);
lua_setglobal(L, deprecated_names[i].name);
}
}
#else
/*
** gives an explicit error in any attempt to call a deprecated function
*/
static int deprecated_func (lua_State *L) {
luaL_verror(L, "function `%.20s' is deprecated", lua_tostring(L, -1));
return 0; /* to avoid warnings */
}
static void deprecated_funcs (lua_State *L) {
int i;
for (i=0; i<num_deprecated; i++) {
lua_pushstring(L, deprecated_names[i].name);
lua_pushcclosure(L, deprecated_func, 1);
lua_setglobal(L, deprecated_names[i].name);
}
}
#endif
/* }====================================================== */
static const struct luaL_reg base_funcs[] = {