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new fallback for equality `__eq'

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This commit is contained in:
Roberto Ierusalimschy
2002-06-13 10:39:55 -03:00
parent 0052930ffe
commit 864c96f36c
12 changed files with 109 additions and 39 deletions
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19
lobject.c
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@@ -1,5 +1,5 @@
/*
** $Id: lobject.c,v 1.82 2002/06/03 14:08:43 roberto Exp roberto $
** $Id: lobject.c,v 1.83 2002/06/05 12:34:19 roberto Exp roberto $
** Some generic functions over Lua objects
** See Copyright Notice in lua.h
*/
@@ -55,23 +55,28 @@ int luaO_log2 (unsigned int x) {
}
/*
** warning: this function must return 1 for true (see opcode OP_TESTEQ)
*/
int luaO_equalObj (const TObject *t1, const TObject *t2) {
int luaO_rawequalObj (const TObject *t1, const TObject *t2) {
if (ttype(t1) != ttype(t2)) return 0;
switch (ttype(t1)) {
case LUA_TNUMBER:
return nvalue(t1) == nvalue(t2);
case LUA_TNIL:
return 1;
case LUA_TSTRING:
return tsvalue(t1) == tsvalue(t2);
case LUA_TBOOLEAN:
return bvalue(t1) == bvalue(t2); /* boolean true must be 1 !! */
case LUA_TUDATAVAL:
return pvalue(t1) == pvalue(t2);
default: /* other types are equal if struct pointers are equal */
return tsvalue(t1) == tsvalue(t2);
case LUA_TUSERDATA:
return uvalue(t1) == uvalue(t2);
case LUA_TTABLE:
return hvalue(t1) == hvalue(t2);
case LUA_TFUNCTION:
return clvalue(t1) == clvalue(t2);
}
lua_assert(0);
return 0; /* to avoid warnings */
}