PromiseHandle port to TF

src/js/promise.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 (function(global, utils, extrasUtils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
@@ skipping 21 matching lines @@
 
 utils.Import(function(from) {
   ObjectHasOwnProperty = from.ObjectHasOwnProperty;
   SpeciesConstructor = from.SpeciesConstructor;
 });
 
 // -------------------------------------------------------------------
 
 // Core functionality.
 
-function PromiseHandle(value, handler, deferred) {
-  var debug_is_active = DEBUG_IS_ACTIVE;
-  try {
-    if (debug_is_active) %DebugPushPromise(deferred.promise);
-    var result = handler(value);
-    if (IS_UNDEFINED(deferred.resolve)) {
-      %promise_resolve(deferred.promise, result);
-    } else {
-      %_Call(deferred.resolve, UNDEFINED, result);
-    }
-  } %catch (exception) {  // Natives syntax to mark this catch block.
-    try {
-      if (IS_UNDEFINED(deferred.reject)) {
-        // Pass false for debugEvent so .then chaining or throwaway promises
-        // in async functions do not trigger redundant ExceptionEvents.
-        %PromiseReject(deferred.promise, exception, false);
-      } else {
-        %_Call(deferred.reject, UNDEFINED, exception);
-      }
-    } catch (e) { }
-  } finally {
-    if (debug_is_active) %DebugPopPromise();
-  }
-}
-
 function PromiseDebugGetInfo(deferreds, status) {
   var id, name, instrumenting = DEBUG_IS_ACTIVE;
 
   if (instrumenting) {
     // In an async function, reuse the existing stack related to the outer
     // Promise. Otherwise, e.g. in a direct call to then, save a new stack.
     // Promises with multiple reactions with one or more of them being async
     // functions will not get a good stack trace, as async functions require
     // different stacks from direct Promise use, but we save and restore a
     // stack once for all reactions. TODO(littledan): Improve this case.
@@ skipping 310 matching lines @@
 
 %SetCode(GlobalPromise.prototype.catch, PromiseCatch);
 
 %InstallToContext([
   "promise_catch", GlobalPromise.prototype.catch,
   "promise_create", PromiseCreate,
   "promise_has_user_defined_reject_handler", PromiseHasUserDefinedRejectHandler,
   "promise_reject", DoRejectPromise,
   // TODO(gsathya): Remove this once we update the promise builtin.
   "promise_internal_reject", RejectPromise,
-  "promise_handle", PromiseHandle,
   "promise_debug_get_info", PromiseDebugGetInfo,
   "new_promise_capability", NewPromiseCapability,
   "internal_promise_capability", CreateInternalPromiseCapability,
   "promise_id_resolve_handler", PromiseIdResolveHandler,
   "promise_id_reject_handler", PromiseIdRejectHandler
 ]);
 
 // This allows extras to create promises quickly without building extra
 // resolve/reject closures, and allows them to later resolve and reject any
 // promise without having to hold on to those closures forever.
 utils.InstallFunctions(extrasUtils, 0, [
   "createPromise", PromiseCreate,
   "rejectPromise", DoRejectPromise,
   "markPromiseAsHandled", MarkPromiseAsHandled
 ]);
 
 utils.Export(function(to) {
   to.PromiseCreate = PromiseCreate;
   to.PromiseThen = PromiseThen;
 
   to.CreateInternalPromiseCapability = CreateInternalPromiseCapability;
   to.RejectPromise = RejectPromise;
 });
 
 })