Support for selective DOM activity logging, based on IDL attributes.

Source/bindings/v8/V8Binding.h

 /*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 * Copyright (C) 2012 Ericsson AB. 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.
@@ skipping 376 matching lines @@
     {
         ASSERT(startIndex <= args.Length());
         Vector<T> result;
         typedef NativeValueTraits<T> TraitsType;
         int length = args.Length();
         for (int i = startIndex; i < length; ++i)
             result.append(TraitsType::nativeValue(args[i]));
         return result;
     }
 
+    template <class T>
+    Vector<T> toVectorOfArguments(const v8::Arguments& args)

[haraken, 2013/04/11 00:59:16]

This doesn't need to be a template, since a type of Arguments is always
v8::Handle<v8::Value>.

I cannot consider other use cases of this helper method, so I might want to just
write the logic inline in CodeGeneratorV8.pm (rather than creating a helper
method).

[ulfar, 2013/04/11 03:25:15]

Inlining this might lead to some code size increase, since it would be repeated
a few places.  For now I removed the template argument, and moved the code to
the CPP file.

+    {
+        Vector<T> result;
+        int length = args.Length();

[haraken, 2013/04/11 00:59:16]

Nit: int => size_t

[ulfar, 2013/04/11 03:25:15]

Done.

+        for (int i = 0; i < length; ++i)

[haraken, 2013/04/11 00:59:16]

Nit: int => size_t

[ulfar, 2013/04/11 03:25:15]

Done.

+            result.append(args[i]);
+        return result;
+    }
+
     // Validates that the passed object is a sequence type per WebIDL spec
     // http://www.w3.org/TR/2012/WD-WebIDL-20120207/#es-sequence
     inline v8::Handle<v8::Value> toV8Sequence(v8::Handle<v8::Value> value, uint32_t& length, v8::Isolate* isolate)
     {
         if (!value->IsObject()) {
             throwTypeError(0, isolate);
             return v8Undefined();
         }
 
         v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(value));
@@ skipping 89 matching lines @@
     // is disabled and it returns true.
     bool handleOutOfMemory();
     // FIXME: This should receive an Isolate.
     v8::Local<v8::Value> handleMaxRecursionDepthExceeded();
 
     void crashIfV8IsDead();
 
 } // namespace WebCore
 
 #endif // V8Binding_h