[promises] Move PromiseResolveThenableJob to c++

src/runtime/runtime-internal.cc

 // Copyright 2014 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.
 
 #include "src/runtime/runtime-utils.h"
 
 #include <memory>
 
 #include "src/arguments.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 537 matching lines @@
     isolate->counters()->runtime_call_stats()->Print(stats_stream);
     isolate->counters()->runtime_call_stats()->Reset();
     if (args[0]->IsString())
       std::fclose(f);
     else
       std::fflush(f);
     return isolate->heap()->undefined_value();
   }
 }
 
+RUNTIME_FUNCTION(Runtime_EnqueuePromiseResolveThenableJob) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 5);
+  CONVERT_ARG_HANDLE_CHECKED(JSObject, promise, 0);
+  CONVERT_ARG_HANDLE_CHECKED(JSObject, resolution, 1);

[adamk, 2016/09/06 21:04:57]

The struct says these are just Objects; which is it?

[gsathya, 2016/09/07 04:45:30]

Updated the struct to be more specific.

+  CONVERT_ARG_HANDLE_CHECKED(JSFunction, then, 2);
+  CONVERT_ARG_HANDLE_CHECKED(JSFunction, resolve, 3);
+  CONVERT_ARG_HANDLE_CHECKED(JSFunction, reject, 4);
+  Handle<PromiseContainer> container = isolate->factory()->NewPromiseContainer(
+      promise, resolution, then, resolve, reject);
+  isolate->EnqueueMicrotask(container);
+  return isolate->heap()->undefined_value();
+}
+
 RUNTIME_FUNCTION(Runtime_EnqueueMicrotask) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, microtask, 0);
   isolate->EnqueueMicrotask(microtask);
   return isolate->heap()->undefined_value();
 }
 
 RUNTIME_FUNCTION(Runtime_RunMicrotasks) {
   HandleScope scope(isolate);
@@ skipping 22 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_Typeof) {
   HandleScope scope(isolate);
   DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, object, 0);
   return *Object::TypeOf(isolate, object);
 }
 
 }  // namespace internal
 }  // namespace v8