Stage ES6 promises and weak collections

src/weak_collection.js

Index: src/weak_collection.js
diff --git a/src/collection.js b/src/weak_collection.js
similarity index 58%
copy from src/collection.js
copy to src/weak_collection.js
index 1f7aef4f0da6b02cf88974dd551992afe07105fc..81d4ab536e68b3184d2d386df6a192ba591d3fae 100644
--- a/src/collection.js
+++ b/src/weak_collection.js
@@ -31,206 +31,9 @@
 // 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