Stage ES6 promises and weak collections

src/weak_collection.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 13 matching lines @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 "use strict";
 
 // This file relies on the fact that the following declaration has been made
 // in runtime.js:
 // var $Array = global.Array;
 
-var $Set = global.Set;
-var $Map = global.Map;
 var $WeakMap = global.WeakMap;
 var $WeakSet = global.WeakSet;
 
-// Global sentinel to be used instead of undefined keys, which are not
-// supported internally but required for Harmony sets and maps.
-var undefined_sentinel = {};
-
-
-// Map and Set uses SameValueZero which means that +0 and -0 should be treated
-// as the same value.
-function NormalizeKey(key) {
-  if (IS_UNDEFINED(key)) {
-    return undefined_sentinel;
-  }
-
-  if (key === 0) {
-    return 0;
-  }
-
-  return key;
-}
-
-
-// -------------------------------------------------------------------
-// Harmony Set
-
-function SetConstructor() {
-  if (%_IsConstructCall()) {
-    %SetInitialize(this);
-  } else {
-    throw MakeTypeError('constructor_not_function', ['Set']);
-  }
-}
-
-
-function SetAdd(key) {
-  if (!IS_SET(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Set.prototype.add', this]);
-  }
-  return %SetAdd(this, NormalizeKey(key));
-}
-
-
-function SetHas(key) {
-  if (!IS_SET(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Set.prototype.has', this]);
-  }
-  return %SetHas(this, NormalizeKey(key));
-}
-
-
-function SetDelete(key) {
-  if (!IS_SET(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Set.prototype.delete', this]);
-  }
-  key = NormalizeKey(key);
-  if (%SetHas(this, key)) {
-    %SetDelete(this, key);
-    return true;
-  } else {
-    return false;
-  }
-}
-
-
-function SetGetSize() {
-  if (!IS_SET(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Set.prototype.size', this]);
-  }
-  return %SetGetSize(this);
-}
-
-
-function SetClear() {
-  if (!IS_SET(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Set.prototype.clear', this]);
-  }
-  // Replace the internal table with a new empty table.
-  %SetInitialize(this);
-}
-
-
-// -------------------------------------------------------------------
-
-function SetUpSet() {
-  %CheckIsBootstrapping();
-
-  %SetCode($Set, SetConstructor);
-  %FunctionSetPrototype($Set, new $Object());
-  %SetProperty($Set.prototype, "constructor", $Set, DONT_ENUM);
-
-  // Set up the non-enumerable functions on the Set prototype object.
-  InstallGetter($Set.prototype, "size", SetGetSize);
-  InstallFunctions($Set.prototype, DONT_ENUM, $Array(
-    "add", SetAdd,
-    "has", SetHas,
-    "delete", SetDelete,
-    "clear", SetClear
-  ));
-}
-
-SetUpSet();
-
-
-// -------------------------------------------------------------------
-// Harmony Map
-
-function MapConstructor() {
-  if (%_IsConstructCall()) {
-    %MapInitialize(this);
-  } else {
-    throw MakeTypeError('constructor_not_function', ['Map']);
-  }
-}
-
-
-function MapGet(key) {
-  if (!IS_MAP(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Map.prototype.get', this]);
-  }
-  return %MapGet(this, NormalizeKey(key));
-}
-
-
-function MapSet(key, value) {
-  if (!IS_MAP(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Map.prototype.set', this]);
-  }
-  return %MapSet(this, NormalizeKey(key), value);
-}
-
-
-function MapHas(key) {
-  if (!IS_MAP(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Map.prototype.has', this]);
-  }
-  return %MapHas(this, NormalizeKey(key));
-}
-
-
-function MapDelete(key) {
-  if (!IS_MAP(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Map.prototype.delete', this]);
-  }
-  return %MapDelete(this, NormalizeKey(key));
-}
-
-
-function MapGetSize() {
-  if (!IS_MAP(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Map.prototype.size', this]);
-  }
-  return %MapGetSize(this);
-}
-
-
-function MapClear() {
-  if (!IS_MAP(this)) {
-    throw MakeTypeError('incompatible_method_receiver',
-                        ['Map.prototype.clear', this]);
-  }
-  // Replace the internal table with a new empty table.
-  %MapInitialize(this);
-}
-
-
-// -------------------------------------------------------------------
-
-function SetUpMap() {
-  %CheckIsBootstrapping();
-
-  %SetCode($Map, MapConstructor);
-  %FunctionSetPrototype($Map, new $Object());
-  %SetProperty($Map.prototype, "constructor", $Map, DONT_ENUM);
-
-  // Set up the non-enumerable functions on the Map prototype object.
-  InstallGetter($Map.prototype, "size", MapGetSize);
-  InstallFunctions($Map.prototype, DONT_ENUM, $Array(
-    "get", MapGet,
-    "set", MapSet,
-    "has", MapHas,
-    "delete", MapDelete,
-    "clear", MapClear
-  ));
-}
-
-SetUpMap();
-
 
 // -------------------------------------------------------------------
 // Harmony WeakMap
 
 function WeakMapConstructor() {
   if (%_IsConstructCall()) {
     %WeakCollectionInitialize(this);
   } else {
     throw MakeTypeError('constructor_not_function', ['WeakMap']);
   }
@@ skipping 150 matching lines @@
   // Set up the non-enumerable functions on the WeakSet prototype object.
   InstallFunctions($WeakSet.prototype, DONT_ENUM, $Array(
     "add", WeakSetAdd,
     "has", WeakSetHas,
     "delete", WeakSetDelete,
     "clear", WeakSetClear
   ));
 }
 
 SetUpWeakSet();