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re-implementation of refs through weak tables

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This commit is contained in:
Roberto Ierusalimschy
2001-04-17 14:35:54 -03:00
parent 6473f965ca
commit beee01b170
6 changed files with 83 additions and 119 deletions
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15
ltests.c
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@@ -1,5 +1,5 @@
/*
** $Id: ltests.c,v 1.77 2001/03/26 14:31:49 roberto Exp roberto $
** $Id: ltests.c,v 1.78 2001/04/11 14:42:41 roberto Exp roberto $
** Internal Module for Debugging of the Lua Implementation
** See Copyright Notice in lua.h
*/
@@ -383,21 +383,30 @@ static int string_query (lua_State *L) {
static int tref (lua_State *L) {
int level = lua_gettop(L);
luaL_checkany(L, 1);
lua_pushvalue(L, 1);
lua_pushnumber(L, lua_ref(L, luaL_opt_int(L, 2, 1)));
assert(lua_gettop(L) == level+1); /* +1 for result */
return 1;
}
static int getref (lua_State *L) {
if (lua_getref(L, luaL_check_int(L, 1)))
int level = lua_gettop(L);
if (lua_getref(L, luaL_check_int(L, 1))) {
assert(lua_gettop(L) == level+1);
return 1;
else
}
else {
assert(lua_gettop(L) == level);
return 0;
}
}
static int unref (lua_State *L) {
int level = lua_gettop(L);
lua_unref(L, luaL_check_int(L, 1));
assert(lua_gettop(L) == level);
return 0;
}