Remove Promise.cast

...as per January meeting. Renames 'cast' to 'resolve'. We rename the prior 'resolve' to 'accept', to keep the chain API usable.

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/200763012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20040 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/promise.js

@@ -261,7 +261,7 @@ function PromiseCoerce(constructor, x) {
 
 function PromiseCast(x) {
   // TODO(rossberg): cannot do better until we support @@create.
-  return IsPromise(x) ? x : this.resolve(x);
+  return IsPromise(x) ? x : new this(function(resolve) { resolve(x) });
 }
 
 function PromiseAll(values) {
@@ -277,7 +277,7 @@ function PromiseAll(values) {
       deferred.resolve(resolutions);
     } else {
       for (var i = 0; i < values.length; ++i) {
-        this.cast(values[i]).then(
+        this.resolve(values[i]).then(
           function(i, x) {
             resolutions[i] = x;
             if (--count === 0) deferred.resolve(resolutions);
@@ -300,7 +300,7 @@ function PromiseOne(values) {
   }
   try {
     for (var i = 0; i < values.length; ++i) {
-      this.cast(values[i]).then(
+      this.resolve(values[i]).then(
         function(x) { deferred.resolve(x) },
         function(r) { deferred.reject(r) }
       );
@@ -319,11 +319,11 @@ function SetUpPromise() {
   global_receiver.Promise = $Promise;
   InstallFunctions($Promise, DONT_ENUM, [
     "defer", PromiseDeferred,
-    "resolve", PromiseResolved,
+    "accept", PromiseResolved,
     "reject", PromiseRejected,
     "all", PromiseAll,
     "race", PromiseOne,
-    "cast", PromiseCast
+    "resolve", PromiseCast
   ]);
   InstallFunctions($Promise.prototype, DONT_ENUM, [
     "chain", PromiseChain,

test/webkit/fast/js/Promise-static-cast-expected.txt

-Test Promise.cast
+Test Promise.resolve as cast
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 

test/webkit/fast/js/Promise-static-cast.js

@@ -23,23 +23,23 @@
 
 // Flags: --harmony
 'use strict';
-description('Test Promise.cast');
+description('Test Promise.resolve as cast');
 
 var result = undefined;
 var result2 = undefined;
 
 var resolve;
 var value = new Promise(function (r) { resolve = r;} );
-var promise = Promise.cast(value);
+var promise = Promise.resolve(value);
 
-// If [[IsPromise]] is true, Promise.cast simply returns argument.
+// If [[IsPromise]] is true, Promise.resolve simply returns argument.
 shouldBe('promise', 'value');
 
 promise.then(function(res) {
   result = res;
   shouldBeEqualToString('result', 'hello');
 
-  return Promise.cast(42).then(function (res) {
+  return Promise.resolve(42).then(function (res) {
       result2 = res;
       shouldBe('result2', '42');
   });