Harmony promises

src/runtime.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 14599 matching lines @@
     return isolate->heap()->undefined_value();
 
   ASSERT(!(obj->map()->is_observed() && obj->IsJSObject() &&
            Handle<JSObject>::cast(obj)->HasFastElements()));
   ASSERT(obj->IsJSObject());
   JSObject::SetObserved(Handle<JSObject>::cast(obj));
   return isolate->heap()->undefined_value();
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, Runtime_SetObserverDeliveryPending) {
+// For testing only.
+RUNTIME_FUNCTION(MaybeObject*, Runtime_FailHard) {

[Michael Starzinger, 2013/11/15 09:37:20]

This is similar to the existing Runtime_Abort, can we name this one similarly?
Something like Runtime_AbortJS maybe.

[rossberg, 2013/11/15 10:00:58]

Done.

+  HandleScope scope(isolate);
+  ASSERT(args.length() == 1);
+  CONVERT_ARG_HANDLE_CHECKED(String, message, 0);
+  PrintF("%s\n", *message->ToCString());
+  CHECK(!"FailHard");
+  return isolate->heap()->undefined_value();
+}
+
+
+RUNTIME_FUNCTION(MaybeObject*, Runtime_SetMicrotasksPending) {
   SealHandleScope shs(isolate);
-  ASSERT(args.length() == 0);
-  isolate->set_observer_delivery_pending(true);
-  return isolate->heap()->undefined_value();
+  ASSERT(args.length() == 1);
+  CONVERT_BOOLEAN_ARG_CHECKED(new_state, 0);
+  bool old_state = isolate->microtasks_pending();
+  isolate->set_microtasks_pending(new_state);
+  return isolate->heap()->ToBoolean(old_state);
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_GetObservationState) {
   SealHandleScope shs(isolate);
   ASSERT(args.length() == 0);
   return isolate->heap()->observation_state();
 }
 
 
@@ skipping 243 matching lines @@
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags,
                                        "Runtime::PerformGC");
   }
 }
 
 
 } }  // namespace v8::internal