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commit f01a95d4a00d8cef8283f963c8dfaed0fb7d816d
parent 680fc88cc2976724611e6cec58379c6078d648b2
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date:   Tue,  9 Aug 2005 09:29:57 -0300

detail

Diffstat:
Mlauxlib.c | 5+++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lauxlib.c b/lauxlib.c @@ -1,5 +1,5 @@ /* -** $Id: lauxlib.c,v 1.140 2005/07/12 14:32:48 roberto Exp roberto $ +** $Id: lauxlib.c,v 1.141 2005/07/13 19:02:42 roberto Exp roberto $ ** Auxiliary functions for building Lua libraries ** See Copyright Notice in lua.h */ @@ -42,7 +42,8 @@ LUALIB_API int luaL_argerror (lua_State *L, int narg, const char *extramsg) { lua_Debug ar; - lua_getstack(L, 0, &ar); + if (!lua_getstack(L, 0, &ar)) /* no stack frame? */ + return luaL_error(L, "bad argument #%d (%s)", narg, extramsg); lua_getinfo(L, "n", &ar); if (strcmp(ar.namewhat, "method") == 0) { narg--; /* do not count `self' */