Possible bug in tolua++ with lua 5.1.4 + patch
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- Subject: Possible bug in tolua++ with lua 5.1.4 + patch
- From: Foobar <foobar@...>
- Date: 2011年2月14日 21:16:38 +0100
Hi,
I have found a possible bug in tolua++. When I'm using the addon lua
script for creating virtual calls, it failed with the message below. It
does work with 5.1.4 version but when I did add the latest patch, it
does crash. And as far I can see it is one line in llex.c that is the
problem. An extra line that calls the gc, also below. Perhaps the gc
deletes the script?
Lua script for virtual calls:
http://lua-users.org/files/wiki_insecure/users/ArielManzur/tolua++/virtual_method_hooks.lua
Patch for lua:
http://www.lua.org/ftp/patch-lua-5.1.4-2
I tried to mail tolua@codenix.com but it failed.
***curr code for error is const _cstring value(void);
stack traceback:
[string "tolua embedded: src/bin/lua/basic.lua"]:91: in function
'tolua_error'
[string "tolua: embedded Lua code 23"]:5: in main chunk
** tolua internal error: [string "tolua embedded:
src/bin/lua/function.lua"]:316: attempt to call global
'output_error_hook' (a nil value).
stack traceback:
[string "tolua: embedded Lua code 23"]:6: in main chunk
--- llex.c 2007年12月27日 13:02:25 2.20.1.1
+++ llex.c 2009年11月23日 14:58:22 2.20.1.2
@@ -1,5 +1,5 @@
/*
-** $Id: llex.c,v 2.20.1.1 2007年12月27日 13:02:25 roberto Exp $
+** $Id: llex.c,v 2.20.1.2 2009年11月23日 14:58:22 roberto Exp $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
@@ -118,8 +118,10 @@
lua_State *L = ls->L;
TString *ts = luaS_newlstr(L, str, l);
TValue *o = luaH_setstr(L, ls->fs->h, ts); /* entry for `str' */
- if (ttisnil(o))
+ if (ttisnil(o)) {
setbvalue(o, 1); /* make sure `str' will not be collected */
+ luaC_checkGC(L);
+ }
return ts;
}
/Foobar