IDL: Generic Dictionary support in union types

Source/bindings/scripts/v8_types.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 710 matching lines @@
         if 'TreatReturnedNullStringAs' not in extended_attributes:
             return base_idl_type
         treat_returned_null_string_as = extended_attributes['TreatReturnedNullStringAs']
         if treat_returned_null_string_as == 'Null':
             return 'StringOrNull'
         if treat_returned_null_string_as == 'Undefined':
             return 'StringOrUndefined'
         raise 'Unrecognized TreatReturnedNullStringAs value: "%s"' % treat_returned_null_string_as
     if idl_type.is_basic_type or base_idl_type == 'ScriptValue':
         return base_idl_type
+    # Generic dictionary type
+    if base_idl_type == 'Dictionary':
+        return 'Dictionary'
 
     # Data type with potential additional includes
     add_includes_for_type(idl_type)
     if base_idl_type in V8_SET_RETURN_VALUE:  # Special v8SetReturnValue treatment
         return base_idl_type
 
     # Pointer type
     return 'DOMWrapper'
 
 IdlTypeBase.v8_conversion_type = v8_conversion_type
@@ skipping 19 matching lines @@
     # and then use general v8SetReturnValue.
     'array': 'v8SetReturnValue(info, {cpp_value})',
     'Date': 'v8SetReturnValue(info, {cpp_value})',
     'EventHandler': 'v8SetReturnValue(info, {cpp_value})',
     'ScriptValue': 'v8SetReturnValue(info, {cpp_value})',
     'SerializedScriptValue': 'v8SetReturnValue(info, {cpp_value})',
     # DOMWrapper
     'DOMWrapperForMainWorld': 'v8SetReturnValueForMainWorld(info, WTF::getPtr({cpp_value}))',
     'DOMWrapperFast': 'v8SetReturnValueFast(info, WTF::getPtr({cpp_value}), {script_wrappable})',
     'DOMWrapperDefault': 'v8SetReturnValue(info, {cpp_value})',
+    # Generic dictionary type
+    'Dictionary': 'v8SetReturnValue(info, {cpp_value})',
     # Union types or dictionaries
     'DictionaryOrUnion': 'v8SetReturnValue(info, result)',
 }
 
 
 def v8_set_return_value(idl_type, cpp_value, extended_attributes=None, script_wrappable='', release=False, for_main_world=False):
     """Returns a statement that converts a C++ value to a V8 value and sets it as a return value.
 
     """
     def dom_wrapper_conversion_type():
@@ skipping 37 matching lines @@
     'unsigned': 'v8::Integer::NewFromUnsigned({isolate}, {cpp_value})',
     'float': 'v8::Number::New({isolate}, {cpp_value})',
     'unrestricted float': 'v8::Number::New({isolate}, {cpp_value})',
     'double': 'v8::Number::New({isolate}, {cpp_value})',
     'unrestricted double': 'v8::Number::New({isolate}, {cpp_value})',
     'void': 'v8Undefined()',
     # [TreatReturnedNullStringAs]
     'StringOrNull': '{cpp_value}.isNull() ? v8::Handle<v8::Value>(v8::Null({isolate})) : v8String({isolate}, {cpp_value})',
     'StringOrUndefined': '{cpp_value}.isNull() ? v8Undefined() : v8String({isolate}, {cpp_value})',
     # Special cases
+    'Dictionary': '{cpp_value}.v8Value()',
     'EventHandler': '{cpp_value} ? v8::Handle<v8::Value>(V8AbstractEventListener::cast({cpp_value})->getListenerObject(impl->executionContext())) : v8::Handle<v8::Value>(v8::Null({isolate}))',
     'ScriptValue': '{cpp_value}.v8Value()',
     'SerializedScriptValue': '{cpp_value} ? {cpp_value}->deserialize() : v8::Handle<v8::Value>(v8::Null({isolate}))',
     # General
     'array': 'v8Array({cpp_value}, {creation_context}, {isolate})',
     'DOMWrapper': 'toV8({cpp_value}, {creation_context}, {isolate})',
     # Union types or dictionaries
     'DictionaryOrUnion': 'toV8({cpp_value}, {creation_context}, {isolate})',
 }
 
@@ skipping 71 matching lines @@
     number_of_nullable_member_types_union)
 
 
 def includes_nullable_type_union(idl_type):
     # http://heycam.github.io/webidl/#dfn-includes-a-nullable-type
     return idl_type.number_of_nullable_member_types == 1
 
 IdlTypeBase.includes_nullable_type = False
 IdlNullableType.includes_nullable_type = True
 IdlUnionType.includes_nullable_type = property(includes_nullable_type_union)