Implement an infrastructure of Blink-in-JS

Source/bindings/scripts/v8_callback_interface.py

 # Copyright (C) 2013 Google 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:
 #
 #     * 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
@@ skipping 43 matching lines @@
 
 
 def cpp_type(idl_type):
     # FIXME: remove this function by making callback types consistent
     # (always use usual v8_types.cpp_type)
     idl_type_name = idl_type.name
     if idl_type_name == 'String':
         return 'const String&'
     if idl_type_name == 'void':
         return 'void'
-    # Callbacks use raw pointers, so used_as_argument=True
-    usual_cpp_type = idl_type.cpp_type_args(used_as_argument=True)
-    if usual_cpp_type.startswith(('Vector', 'HeapVector', 'WillBeHeapVector')):
-        return 'const %s&' % usual_cpp_type
-    return usual_cpp_type
+    # Callbacks use raw pointers, so used_as_raw_type=True
+    raw_cpp_type = idl_type.cpp_type_args(used_as_raw_type=True)
+    if raw_cpp_type.startswith(('Vector', 'HeapVector', 'WillBeHeapVector')):
+        return 'const %s&' % raw_cpp_type
+    return raw_cpp_type
 
 IdlType.callback_cpp_type = property(cpp_type)
 
 
 def generate_callback_interface(callback_interface):
     includes.clear()
     includes.update(CALLBACK_INTERFACE_CPP_INCLUDES)
     return {
         'conditional_string': v8_utilities.conditional_string(callback_interface),
         'cpp_class': callback_interface.name,
@@ skipping 29 matching lines @@
         'name': operation.name,
     }
     contents.update(generate_arguments_contents(operation.arguments, call_with_this_handle))
     return contents
 
 
 def generate_arguments_contents(arguments, call_with_this_handle):
     def generate_argument(argument):
         return {
             'handle': '%sHandle' % argument.name,
-            # FIXME: setting creation_context=v8::Handle<v8::Object>() is
-            # wrong, as toV8 then implicitly uses the current context, which
-            # causes leaks between isolated worlds if a different context is
-            # used.
             'cpp_value_to_v8_value': argument.idl_type.cpp_value_to_v8_value(
                 argument.name, isolate='isolate',
                 creation_context='m_scriptState->context()->Global()'),
         }
 
     argument_declarations = ['ScriptValue thisValue'] if call_with_this_handle else []
     argument_declarations.extend(
         '%s %s' % (argument.idl_type.callback_cpp_type, argument.name)
         for argument in arguments)
     return  {
         'argument_declarations': argument_declarations,
         'arguments': [generate_argument(argument) for argument in arguments],
     }