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new way to handle errors

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This commit is contained in:
Roberto Ierusalimschy 2002-05-01 17:48:12 -03:00
parent b36b2a061c
commit 751cd867d3
13 changed files with 283 additions and 292 deletions
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10
ldblib.c
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@ -1,5 +1,5 @@
/*
** $Id: ldblib.c,v 1.47 2002/04/09 19:48:08 roberto Exp roberto $
** $Id: ldblib.c,v 1.48 2002/04/22 14:40:50 roberto Exp roberto $
** Interface from Lua to its debug API
** See Copyright Notice in lua.h
*/
@ -189,7 +189,6 @@ static int errorfb (lua_State *L) {
lua_Debug ar;
luaL_Buffer b;
luaL_buffinit(L, &b);
luaL_addstring(&b, "error: ");
luaL_addstring(&b, luaL_check_string(L, 1));
luaL_addstring(&b, "\n");
while (lua_getstack(L, level++, &ar)) {
@ -243,12 +242,7 @@ static int errorfb (lua_State *L) {
luaL_addstring(&b, "\n");
}
luaL_pushresult(&b);
lua_getglobal(L, LUA_ALERT);
if (lua_isfunction(L, -1)) { /* avoid loop if _ALERT is not defined */
lua_pushvalue(L, -2); /* error message */
lua_rawcall(L, 1, 0);
}
return 0;
return 1;
}