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__unm metamethod gets nil as its 2nd parameter

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Roberto Ierusalimschy
2010-01-15 14:23:58 -02:00
parent 193ce46970
commit 36ab1ee10c
1 changed files with 2 additions and 1 deletions
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lvm.c
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@@ -1,5 +1,5 @@
/* /*
** $Id: lvm.c,v 2.101 2009/11/25 15:27:51 roberto Exp roberto $ ** $Id: lvm.c,v 2.102 2009/12/17 16:20:01 roberto Exp roberto $
** Lua virtual machine ** Lua virtual machine
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@@ -157,6 +157,7 @@ static int call_binTM (lua_State *L, const TValue *p1, const TValue *p2,
if (ttisnil(tm)) if (ttisnil(tm))
tm = luaT_gettmbyobj(L, p2, event); /* try second operand */ tm = luaT_gettmbyobj(L, p2, event); /* try second operand */
if (ttisnil(tm)) return 0; if (ttisnil(tm)) return 0;
if (event == TM_UNM) p2 = luaO_nilobject;
callTM(L, tm, p1, p2, res, 1); callTM(L, tm, p1, p2, res, 1);
return 1; return 1;
} }