Ship promises and weak collections

src/promise.js

Index: src/promise.js
diff --git a/src/promise.js b/src/promise.js
index 390c19e2aca6b4c0e25efd0eccefc6f7a802840f..2f529ec9a4ddc81d941ea0575bed81ba5e15c3ed 100644
--- a/src/promise.js
+++ b/src/promise.js
@@ -34,7 +34,19 @@
 // var $WeakMap = global.WeakMap
 
 
-var $Promise = Promise;
+var $Promise = function Promise(resolver) {
+  if (resolver === promiseRaw) return;
+  if (!%_IsConstructCall()) throw MakeTypeError('not_a_promise', [this]);
+  if (typeof resolver !== 'function')
+    throw MakeTypeError('resolver_not_a_function', [resolver]);
+  var promise = PromiseInit(this);
+  try {
+    resolver(function(x) { PromiseResolve(promise, x) },
+             function(r) { PromiseReject(promise, r) });
+  } catch (e) {
+    PromiseReject(promise, e);
+  }
+}
 
 
 //-------------------------------------------------------------------
@@ -52,20 +64,6 @@ function IsPromise(x) {
   return IS_SPEC_OBJECT(x) && %HasLocalProperty(x, promiseStatus);
 }
 
-function Promise(resolver) {
-  if (resolver === promiseRaw) return;
-  if (!%_IsConstructCall()) throw MakeTypeError('not_a_promise', [this]);
-  if (typeof resolver !== 'function')
-    throw MakeTypeError('resolver_not_a_function', [resolver]);
-  var promise = PromiseInit(this);
-  try {
-    resolver(function(x) { PromiseResolve(promise, x) },
-             function(r) { PromiseReject(promise, r) });
-  } catch (e) {
-    PromiseReject(promise, e);
-  }
-}
-
 function PromiseSet(promise, status, value, onResolve, onReject) {
   SET_PRIVATE(promise, promiseStatus, status);
   SET_PRIVATE(promise, promiseValue, value);
@@ -99,7 +97,7 @@ function PromiseReject(promise, r) {
 function PromiseNopResolver() {}
 
 function PromiseCreate() {
-  return new Promise(PromiseNopResolver)
+  return new $Promise(PromiseNopResolver)
 }
 
 
@@ -108,7 +106,7 @@ function PromiseCreate() {
 function PromiseDeferred() {
   if (this === $Promise) {
     // Optimized case, avoid extra closure.
-    var promise = PromiseInit(new Promise(promiseRaw));
+    var promise = PromiseInit(new $Promise(promiseRaw));
     return {
       promise: promise,
       resolve: function(x) { PromiseResolve(promise, x) },
@@ -127,7 +125,7 @@ function PromiseDeferred() {
 function PromiseResolved(x) {
   if (this === $Promise) {
     // Optimized case, avoid extra closure.
-    return PromiseSet(new Promise(promiseRaw), +1, x);
+    return PromiseSet(new $Promise(promiseRaw), +1, x);
   } else {
     return new this(function(resolve, reject) { resolve(x) });
   }
@@ -136,7 +134,7 @@ function PromiseResolved(x) {
 function PromiseRejected(r) {
   if (this === $Promise) {
     // Optimized case, avoid extra closure.
-    return PromiseSet(new Promise(promiseRaw), -1, r);
+    return PromiseSet(new $Promise(promiseRaw), -1, r);
   } else {
     return new this(function(resolve, reject) { reject(r) });
   }
@@ -306,9 +304,8 @@ function PromiseOne(values) {
 //-------------------------------------------------------------------
 
 function SetUpPromise() {
-  %CheckIsBootstrapping()
-  var global_receiver = %GlobalReceiver(global);
-  global_receiver.Promise = $Promise;
+  %CheckIsBootstrapping();
+  %SetProperty(global, "Promise", $Promise, NONE);
   InstallFunctions($Promise, DONT_ENUM, [
     "defer", PromiseDeferred,
     "accept", PromiseResolved,