2011-08-03 11:55:13 +00:00
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// Copyright 2011 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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2011-10-25 14:14:56 +00:00
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const $Set = global.Set;
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const $Map = global.Map;
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2011-08-03 11:55:13 +00:00
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const $WeakMap = global.WeakMap;
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2011-10-25 14:14:56 +00:00
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//-------------------------------------------------------------------
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2011-11-03 14:33:58 +00:00
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// Global sentinel to be used instead of undefined keys, which are not
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// supported internally but required for Harmony sets and maps.
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var undefined_sentinel = {};
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2011-10-25 14:14:56 +00:00
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function SetConstructor() {
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if (%_IsConstructCall()) {
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%SetInitialize(this);
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} else {
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return new $Set();
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}
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}
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function SetAdd(key) {
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2011-11-03 14:33:58 +00:00
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if (IS_UNDEFINED(key)) {
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key = undefined_sentinel;
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}
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2011-10-25 14:14:56 +00:00
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return %SetAdd(this, key);
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}
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function SetHas(key) {
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2011-11-03 14:33:58 +00:00
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if (IS_UNDEFINED(key)) {
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key = undefined_sentinel;
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}
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2011-10-25 14:14:56 +00:00
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return %SetHas(this, key);
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}
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function SetDelete(key) {
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2011-11-03 14:33:58 +00:00
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if (IS_UNDEFINED(key)) {
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key = undefined_sentinel;
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}
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2011-10-25 14:14:56 +00:00
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return %SetDelete(this, key);
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}
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function MapConstructor() {
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if (%_IsConstructCall()) {
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%MapInitialize(this);
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} else {
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return new $Map();
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}
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}
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function MapGet(key) {
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2011-11-03 14:33:58 +00:00
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if (IS_UNDEFINED(key)) {
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key = undefined_sentinel;
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}
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2011-10-25 14:14:56 +00:00
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return %MapGet(this, key);
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}
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function MapSet(key, value) {
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2011-11-03 14:33:58 +00:00
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if (IS_UNDEFINED(key)) {
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key = undefined_sentinel;
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}
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2011-10-25 14:14:56 +00:00
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return %MapSet(this, key, value);
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}
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function MapHas(key) {
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2011-11-03 14:33:58 +00:00
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if (IS_UNDEFINED(key)) {
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key = undefined_sentinel;
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}
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2011-10-25 14:14:56 +00:00
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return !IS_UNDEFINED(%MapGet(this, key));
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}
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function MapDelete(key) {
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2011-11-03 14:33:58 +00:00
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if (IS_UNDEFINED(key)) {
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key = undefined_sentinel;
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}
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2011-10-25 14:14:56 +00:00
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if (!IS_UNDEFINED(%MapGet(this, key))) {
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%MapSet(this, key, void 0);
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return true;
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} else {
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return false;
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}
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}
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2011-08-03 11:55:13 +00:00
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2011-08-16 12:09:47 +00:00
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function WeakMapConstructor() {
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2011-08-03 11:55:13 +00:00
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if (%_IsConstructCall()) {
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%WeakMapInitialize(this);
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} else {
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return new $WeakMap();
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}
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2011-08-16 12:09:47 +00:00
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}
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2011-08-03 11:55:13 +00:00
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function WeakMapGet(key) {
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if (!IS_SPEC_OBJECT(key)) {
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throw %MakeTypeError('invalid_weakmap_key', [this, key]);
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}
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return %WeakMapGet(this, key);
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}
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function WeakMapSet(key, value) {
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if (!IS_SPEC_OBJECT(key)) {
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throw %MakeTypeError('invalid_weakmap_key', [this, key]);
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}
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return %WeakMapSet(this, key, value);
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}
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2011-08-04 11:13:15 +00:00
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function WeakMapHas(key) {
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if (!IS_SPEC_OBJECT(key)) {
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throw %MakeTypeError('invalid_weakmap_key', [this, key]);
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}
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return !IS_UNDEFINED(%WeakMapGet(this, key));
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}
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function WeakMapDelete(key) {
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if (!IS_SPEC_OBJECT(key)) {
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throw %MakeTypeError('invalid_weakmap_key', [this, key]);
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}
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if (!IS_UNDEFINED(%WeakMapGet(this, key))) {
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%WeakMapSet(this, key, void 0);
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return true;
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} else {
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return false;
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}
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}
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2011-08-03 11:55:13 +00:00
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// -------------------------------------------------------------------
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2011-09-05 07:30:35 +00:00
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(function () {
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%CheckIsBootstrapping();
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2011-10-25 14:14:56 +00:00
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// Set up the Set and Map constructor function.
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%SetCode($Set, SetConstructor);
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%SetCode($Map, MapConstructor);
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// Set up the constructor property on the Set and Map prototype object.
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%SetProperty($Set.prototype, "constructor", $Set, DONT_ENUM);
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%SetProperty($Map.prototype, "constructor", $Map, DONT_ENUM);
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// Set up the non-enumerable functions on the Set prototype object.
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2011-11-15 09:44:57 +00:00
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InstallFunctions($Set.prototype, DONT_ENUM, $Array(
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2011-10-25 14:14:56 +00:00
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"add", SetAdd,
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"has", SetHas,
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"delete", SetDelete
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));
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// Set up the non-enumerable functions on the Map prototype object.
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2011-11-15 09:44:57 +00:00
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InstallFunctions($Map.prototype, DONT_ENUM, $Array(
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2011-10-25 14:14:56 +00:00
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"get", MapGet,
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"set", MapSet,
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"has", MapHas,
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"delete", MapDelete
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));
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2011-08-30 09:35:20 +00:00
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// Set up the WeakMap constructor function.
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2011-08-16 12:09:47 +00:00
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%SetCode($WeakMap, WeakMapConstructor);
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2011-08-30 09:35:20 +00:00
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// Set up the constructor property on the WeakMap prototype object.
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%SetProperty($WeakMap.prototype, "constructor", $WeakMap, DONT_ENUM);
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// Set up the non-enumerable functions on the WeakMap prototype object.
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2011-11-15 09:44:57 +00:00
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InstallFunctions($WeakMap.prototype, DONT_ENUM, $Array(
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2011-08-03 11:55:13 +00:00
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"get", WeakMapGet,
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2011-08-04 11:13:15 +00:00
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"set", WeakMapSet,
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"has", WeakMapHas,
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"delete", WeakMapDelete
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2011-08-03 11:55:13 +00:00
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));
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2011-09-05 07:30:35 +00:00
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})();
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