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error()' (and error(nil)') generates errors with no error messages

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Roberto Ierusalimschy
2003-10-23 16:06:22 -02:00
parent d6d896b953
commit 275c150b17
2 changed files with 7 additions and 10 deletions
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8
lbaselib.c
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@@ -1,5 +1,5 @@
/*
** $Id: lbaselib.c,v 1.134 2003/10/07 20:13:41 roberto Exp roberto $
** $Id: lbaselib.c,v 1.135 2003/10/10 12:57:55 roberto Exp roberto $
** Basic library
** See Copyright Notice in lua.h
*/
@@ -78,10 +78,8 @@ static int luaB_tonumber (lua_State *L) {
static int luaB_error (lua_State *L) {
int level = luaL_optint(L, 2, 1);
luaL_checkany(L, 1);
if (!lua_isstring(L, 1) || level == 0)
lua_pushvalue(L, 1); /* propagate error message without changes */
else { /* add extra information */
lua_settop(L, 1);
if (lua_isstring(L, 1) && level > 0) { /* add extra information? */
luaL_where(L, level);
lua_pushvalue(L, 1);
lua_concat(L, 2);