IDL: Enumerations support in dictionaries

Source/bindings/scripts/v8_dictionary.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Generate template contexts of dictionaries for both v8 bindings and
 implementation classes that are used by blink's core/modules.
 """
 
 import operator
 from v8_globals import includes
 import v8_types
 import v8_utilities
 
 
 DICTIONARY_H_INCLUDES = frozenset([
     'bindings/core/v8/V8Binding.h',
     'platform/heap/Handle.h',
 ])
 
 DICTIONARY_CPP_INCLUDES = frozenset([
+    'bindings/core/v8/ExceptionState.h',
     # FIXME: Remove this, http://crbug.com/321462
     'bindings/core/v8/Dictionary.h',
 ])
 
 
 def setter_name_for_dictionary_member(member):
     return 'set%s' % v8_utilities.capitalize(member.name)
 
 
 def has_method_name_for_dictionary_member(member):
@@ skipping 37 matching lines @@
 
     cpp_default_value, v8_default_value = default_values()
 
     return {
         'cpp_default_value': cpp_default_value,
         'cpp_type': idl_type.cpp_type,
         'cpp_value_to_v8_value': idl_type.cpp_value_to_v8_value(
             cpp_value='impl->%s()' % member.name, isolate='isolate',
             creation_context='creationContext',
             extended_attributes=member.extended_attributes),
+        'enum_validation_expression': idl_type.enum_validation_expression,
         'has_method_name': has_method_name_for_dictionary_member(member),
         'name': member.name,
         'setter_name': setter_name_for_dictionary_member(member),
         'v8_default_value': v8_default_value,
     }
 
 
 # Context for implementation classes
 
 def dictionary_impl_context(dictionary, interfaces_info):
@@ skipping 10 matching lines @@
 
 def member_impl_context(member, interfaces_info, header_includes):
     idl_type = member.idl_type
 
     def getter_expression():
         if idl_type.impl_should_use_nullable_container:
             return 'm_%s.get()' % member.name
         return 'm_%s' % member.name
 
     def has_method_expression():
-        if (idl_type.impl_should_use_nullable_container or
-            idl_type.is_string_type):
+        if idl_type.impl_should_use_nullable_container or idl_type.is_enum or idl_type.is_string_type:
             return '!m_%s.isNull()' % member.name
         else:
             return 'm_%s' % member.name
 
     def member_cpp_type():
         member_cpp_type = idl_type.cpp_type_args(used_in_cpp_sequence=True)
         if idl_type.impl_should_use_nullable_container:
             return v8_types.cpp_template_type('Nullable', member_cpp_type)
         return member_cpp_type
 
     cpp_default_value = None
     if member.default_value and not member.default_value.is_null:
         cpp_default_value = str(member.default_value)
 
     header_includes.update(idl_type.impl_includes_for_type(interfaces_info))
     return {
         'cpp_default_value': cpp_default_value,
         'getter_expression': getter_expression(),
         'has_method_expression': has_method_expression(),
         'has_method_name': has_method_name_for_dictionary_member(member),
         'is_traceable': (idl_type.is_garbage_collected or
                          idl_type.is_will_be_garbage_collected),
         'member_cpp_type': member_cpp_type(),
         'name': member.name,
         'rvalue_cpp_type': idl_type.cpp_type_args(used_as_rvalue_type=True),
         'setter_name': setter_name_for_dictionary_member(member),
     }