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// Copyright 2012 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
(function(global, utils) {
"use strict";
%CheckIsBootstrapping();
// -------------------------------------------------------------------
// Imports
var GlobalWeakMap = global.WeakMap;
var GlobalWeakSet = global.WeakSet;
var MathRandom = global.Math.random;
// -------------------------------------------------------------------
// Harmony WeakMap
function WeakMapConstructor(iterable) {
if (IS_UNDEFINED(new.target)) {
throw %make_type_error(kConstructorNotFunction, "WeakMap");
}
%WeakCollectionInitialize(this);
if (!IS_NULL_OR_UNDEFINED(iterable)) {
var adder = this.set;
if (!IS_CALLABLE(adder)) {
throw %make_type_error(kPropertyNotFunction, adder, 'set', this);
}
for (var nextItem of iterable) {
if (!IS_RECEIVER(nextItem)) {
throw %make_type_error(kIteratorValueNotAnObject, nextItem);
}
%_Call(adder, this, nextItem[0], nextItem[1]);
}
}
}
// Set up the non-enumerable functions on the WeakMap prototype object.
DEFINE_METHODS(
GlobalWeakMap.prototype,
{
set(key, value) {
if (!IS_WEAKMAP(this)) {
throw %make_type_error(kIncompatibleMethodReceiver,
'WeakMap.prototype.set', this);
}
if (!IS_RECEIVER(key)) throw %make_type_error(kInvalidWeakMapKey);
return %WeakCollectionSet(this, key, value, %GenericHash(key));
}
delete(key) {
if (!IS_WEAKMAP(this)) {
throw %make_type_error(kIncompatibleMethodReceiver,
'WeakMap.prototype.delete', this);
}
if (!IS_RECEIVER(key)) return false;
var hash = %GetExistingHash(key);
if (IS_UNDEFINED(hash)) return false;
return %WeakCollectionDelete(this, key, hash);
}
}
);
// -------------------------------------------------------------------
%SetCode(GlobalWeakMap, WeakMapConstructor);
%FunctionSetLength(GlobalWeakMap, 0);
// -------------------------------------------------------------------
// Harmony WeakSet
function WeakSetConstructor(iterable) {
if (IS_UNDEFINED(new.target)) {
throw %make_type_error(kConstructorNotFunction, "WeakSet");
}
%WeakCollectionInitialize(this);
if (!IS_NULL_OR_UNDEFINED(iterable)) {
var adder = this.add;
if (!IS_CALLABLE(adder)) {
throw %make_type_error(kPropertyNotFunction, adder, 'add', this);
}
for (var value of iterable) {
%_Call(adder, this, value);
}
}
}
// Set up the non-enumerable functions on the WeakSet prototype object.
DEFINE_METHODS(
GlobalWeakSet.prototype,
{
add(value) {
if (!IS_WEAKSET(this)) {
throw %make_type_error(kIncompatibleMethodReceiver,
'WeakSet.prototype.add', this);
}
if (!IS_RECEIVER(value)) throw %make_type_error(kInvalidWeakSetValue);
return %WeakCollectionSet(this, value, true, %GenericHash(value));
}
delete(value) {
if (!IS_WEAKSET(this)) {
throw %make_type_error(kIncompatibleMethodReceiver,
'WeakSet.prototype.delete', this);
}
if (!IS_RECEIVER(value)) return false;
var hash = %GetExistingHash(value);
if (IS_UNDEFINED(hash)) return false;
return %WeakCollectionDelete(this, value, hash);
}
}
);
// -------------------------------------------------------------------
%SetCode(GlobalWeakSet, WeakSetConstructor);
%FunctionSetLength(GlobalWeakSet, 0);
})
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