blob: 3e11cf6d7a90f58c98216ba37d44d0b013736b5a [file] [log] [blame]
# Copyright 2017 The Cobalt Authors. All Rights Reserved.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# See the License for the specific language governing permissions and
# limitations under the License.
"""V8c-specific implementation of CodeGeneratorCobalt.
Defines CodeGeneratorV8c and ExpressionGeneratorV8c classes.
import os
from cobalt.bindings.code_generator_cobalt import CodeGeneratorCobalt
from cobalt.bindings.expression_generator import ExpressionGenerator
class ExpressionGeneratorV8c(ExpressionGenerator):
"""Implementation of ExpressionGenerator for V8."""
def is_undefined(self, arg):
return '{}->IsUndefined()'.format(arg)
def is_undefined_or_null(self, arg):
return '{}->IsNullOrUndefined()'.format(arg)
def inherits_interface(self, interface_name, arg):
return ('{}->IsObject() ? '
'wrapper_factory->DoesObjectImplementInterface(object, '
'base::GetTypeId<{}>()) : false').format(arg, interface_name)
def is_number(self, arg):
return '{}->IsNumber()'.format(arg)
def is_type(self, interface_name, arg):
return ('{}->IsObject() ? '
'object->Is{}(): false').format(arg, interface_name)
class CodeGeneratorV8c(CodeGeneratorCobalt):
"""Code generator class for V8 bindings."""
_expression_generator = ExpressionGeneratorV8c()
def __init__(self, *args, **kwargs):
module_path, _ = os.path.split(os.path.realpath(__file__))
templates_dir = os.path.normpath(os.path.join(module_path, 'templates'))
super(CodeGeneratorV8c, self).__init__(templates_dir, *args, **kwargs)
def build_interface_context(self, interface, interface_info, definitions):
# Due to a V8 internals quirks, named constructor attributes MUST come
# first, as V8 will use the key that we use to set them on something else
# as the "name" property on the function template value, overriding the
# originally selected name from |FunctionTemplate::SetClassName|. Efforts
# to document/modify this behavior in V8 are underway.
context = super(CodeGeneratorV8c, self).build_interface_context(
interface, interface_info, definitions)
context['all_attributes_v8_order_quirk'] = sorted(
[a for a in context['attributes'] + context['static_attributes']],
key=lambda a: not a.get('is_named_constructor_attribute', False))
return context
def generated_file_prefix(self):
return 'v8c'
def expression_generator(self):
return CodeGeneratorV8c._expression_generator