Implement ScriptPromise and ScriptFunction

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 21 matching lines @@
 #include "InternalProfilers.h"
 #include "InternalRuntimeFlags.h"
 #include "InternalSettings.h"
 #include "LayerRect.h"
 #include "LayerRectList.h"
 #include "MallocStatistics.h"
 #include "MockPagePopupDriver.h"
 #include "RuntimeEnabledFeatures.h"
 #include "TypeConversions.h"
 #include "bindings/v8/ExceptionState.h"
+#include "bindings/v8/ScriptFunction.h"
+#include "bindings/v8/ScriptPromise.h"
 #include "bindings/v8/SerializedScriptValue.h"
 #include "bindings/v8/V8ThrowException.h"
 #include "core/animation/DocumentTimeline.h"
 #include "core/css/StyleSheetContents.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/css/resolver/ViewportStyleResolver.h"
 #include "core/dom/ClientRect.h"
 #include "core/dom/ClientRectList.h"
 #include "core/dom/DOMStringList.h"
 #include "core/dom/Document.h"
@@ skipping 2094 matching lines @@
     if (!sharedContext)
         return false;
     sharedContext->getExtensions()->loseContextCHROMIUM(Extensions3D::GUILTY_CONTEXT_RESET_ARB, Extensions3D::INNOCENT_CONTEXT_RESET_ARB);
     // To prevent tests that call loseSharedGraphicsContext3D from being
     // flaky, we call finish so that the context is guaranteed to be lost
     // synchronously (i.e. before returning).
     sharedContext->finish();
     return true;
 }
 
+namespace {
+
+class AddOneFunction : public ScriptFunction {
+public:
+    static v8::Handle<v8::Function> create()
+    {
+        AddOneFunction* function = new AddOneFunction;
+        return function->releaseToV8Function();

[abarth-chromium, 2013/08/19 22:03:19]

I'm not 100% happy with this line.  I'd rather if it read more like:

return adoptByGarbageCollector(new AddOneFunction);

or something like that.

+    }
+
+private:
+    virtual ScriptValue call(ScriptValue value) OVERRIDE
+    {
+        v8::Local<v8::Value> v8Value = value.v8Value();
+        ASSERT(v8Value->IsNumber());
+        int intValue = v8Value.As<v8::Integer>()->Value();
+        ScriptValue result  = ScriptValue(v8::Integer::New(intValue + 1));
+        return result;
+    }
+};
+
 }
+
+ScriptValue Internals::addOneToPromise(ScriptValue promise)
+{
+    ScriptValue result;
+    bool success = ScriptPromise(promise).then(AddOneFunction::create(), result);
+    RELEASE_ASSERT(success);
+    return result;
+}
+
+}