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'proto->source' may be NULL (if dump strips debug information)

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Roberto Ierusalimschy 2010-10-11 17:24:42 -03:00
parent 8bc33a088c
commit cd0ebd0a80
1 changed files with 11 additions and 5 deletions
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16
ldebug.c
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@ -1,5 +1,5 @@
/*
** $Id: ldebug.c,v 2.72 2010/06/21 16:30:12 roberto Exp roberto $
** $Id: ldebug.c,v 2.73 2010/09/07 19:21:39 roberto Exp roberto $
** Debug Interface
** See Copyright Notice in lua.h
*/
@ -160,9 +160,10 @@ static void funcinfo (lua_Debug *ar, Closure *cl) {
ar->what = "C";
}
else {
ar->source = getstr(cl->l.p->source);
ar->linedefined = cl->l.p->linedefined;
ar->lastlinedefined = cl->l.p->lastlinedefined;
Proto *p = cl->l.p;
ar->source = p->source ? getstr(p->source) : "=?";
ar->linedefined = p->linedefined;
ar->lastlinedefined = p->lastlinedefined;
ar->what = (ar->linedefined == 0) ? "main" : "Lua";
}
luaO_chunkid(ar->short_src, ar->source, LUA_IDSIZE);
@ -496,7 +497,12 @@ static void addinfo (lua_State *L, const char *msg) {
if (isLua(ci)) { /* is Lua code? */
char buff[LUA_IDSIZE]; /* add file:line information */
int line = currentline(ci);
luaO_chunkid(buff, getstr(ci_func(ci)->l.p->source), LUA_IDSIZE);
TString *src = ci_func(ci)->l.p->source;
if (src)
luaO_chunkid(buff, getstr(src), LUA_IDSIZE);
else { /* no source available; use "?" instead */
buff[0] = '?'; buff[1] = '\0';
}
luaO_pushfstring(L, "%s:%d: %s", buff, line, msg);
}
}