def member_context()

in bindings/scripts/v8_dictionary.py [0:0]

• 50 lines of code
• 7 McCabe index (conditional complexity)

def member_context(dictionary, member):
    extended_attributes = member.extended_attributes
    idl_type = member.idl_type
    idl_type.add_includes_for_type(extended_attributes)
    unwrapped_idl_type = unwrap_nullable_if_needed(idl_type)

    if member.is_required and member.default_value:
        raise Exception(
            'Required member %s must not have a default value.' % member.name)

    def default_values():
        if not member.default_value:
            return None, None
        if member.default_value.is_null:
            return None, 'v8::Null(isolate)'
        cpp_default_value = unwrapped_idl_type.literal_cpp_value(
            member.default_value)
        v8_default_value = unwrapped_idl_type.cpp_value_to_v8_value(
            cpp_value=cpp_default_value, isolate='isolate',
            creation_context='creationContext')
        return cpp_default_value, v8_default_value

    cpp_default_value, v8_default_value = default_values()
    cpp_name = to_snake_case(v8_utilities.cpp_name(member))
    getter_name = getter_name_for_dictionary_member(member)
    is_deprecated_dictionary = unwrapped_idl_type.name == 'Dictionary'

    return {
        'cpp_default_value': cpp_default_value,
        'cpp_name': cpp_name,
        'cpp_type': unwrapped_idl_type.cpp_type,
        'cpp_value_to_v8_value': unwrapped_idl_type.cpp_value_to_v8_value(
            cpp_value='impl.%s()' % getter_name, isolate='isolate',
            creation_context='creationContext',
            extended_attributes=extended_attributes),
        'deprecate_as': v8_utilities.deprecate_as(member),
        'enum_type': idl_type.enum_type,
        'enum_values': unwrapped_idl_type.enum_values,
        'getter_name': getter_name,
        'has_method_name': has_method_name_for_dictionary_member(member),
        'idl_type': idl_type.base_type,
        'is_interface_type': idl_type.is_interface_type and not is_deprecated_dictionary,
        'is_nullable': idl_type.is_nullable,
        'is_object': unwrapped_idl_type.name == 'Object' or is_deprecated_dictionary,
        'is_required': member.is_required,
        'name': member.name,
        'runtime_enabled_feature_name': v8_utilities.runtime_enabled_feature_name(member),  # [RuntimeEnabled]
        'setter_name': setter_name_for_dictionary_member(member),
        'null_setter_name': null_setter_name_for_dictionary_member(member),
        'v8_default_value': v8_default_value,
        'v8_value_to_local_cpp_value': unwrapped_idl_type.v8_value_to_local_cpp_value(
            extended_attributes, member.name + 'Value',
            member.name + 'CppValue', isolate='isolate', use_exception_state=True),
    }