| #!/usr/bin/python |
| # Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| # for details. All rights reserved. Use of this source code is governed by a |
| # BSD-style license that can be found in the LICENSE file. |
| |
| """This module provides shared functionality for the systems to generate |
| native binding from the IDL database.""" |
| |
| import emitter |
| import os |
| from generator import * |
| from htmldartgenerator import * |
| from idlnode import IDLArgument, IDLAttribute |
| from systemhtml import js_support_checks, GetCallbackInfo, HTML_LIBRARY_NAMES |
| |
| # TODO(vsm): This logic needs to pulled from the source IDL. These tables are |
| # an ugly workaround. |
| _cpp_callback_map = { |
| ('DataTransferItem', 'webkitGetAsEntry'): 'DataTransferItemFileSystem', |
| ('Document', 'webkitIsFullScreen'): 'DocumentFullscreen', |
| ('Document', 'webkitFullScreenKeyboardInputAllowed'): 'DocumentFullscreen', |
| ('Document', 'webkitCurrentFullScreenElement'): 'DocumentFullscreen', |
| ('Document', 'webkitCancelFullScreen'): 'DocumentFullscreen', |
| ('Document', 'webkitFullscreenEnabled'): 'DocumentFullscreen', |
| ('Document', 'webkitFullscreenElement'): 'DocumentFullscreen', |
| ('Document', 'webkitExitFullscreen'): 'DocumentFullscreen', |
| ('DOMWindow', 'crypto'): 'DOMWindowCrypto', |
| ('DOMWindow', 'indexedDB'): 'DOMWindowIndexedDatabase', |
| ('DOMWindow', 'speechSynthesis'): 'DOMWindowSpeechSynthesis', |
| ('DOMWindow', 'webkitNotifications'): 'DOMWindowNotifications', |
| ('DOMWindow', 'storage'): 'DOMWindowQuota', |
| ('DOMWindow', 'webkitStorageInfo'): 'DOMWindowQuota', |
| ('DOMWindow', 'openDatabase'): 'DOMWindowWebDatabase', |
| ('DOMWindow', 'webkitRequestFileSystem'): 'DOMWindowFileSystem', |
| ('DOMWindow', 'webkitResolveLocalFileSystemURL'): 'DOMWindowFileSystem', |
| ('DOMWindow', 'atob'): 'DOMWindowBase64', |
| ('DOMWindow', 'btoa'): 'DOMWindowBase64', |
| ('DOMWindow', 'clearTimeout'): 'DOMWindowTimers', |
| ('DOMWindow', 'clearInterval'): 'DOMWindowTimers', |
| ('DOMWindow', 'createImageBitmap'): 'ImageBitmapFactories', |
| ('HTMLInputElement', 'webkitEntries'): 'HTMLInputElementFileSystem', |
| ('Navigator', 'doNotTrack'): 'NavigatorDoNotTrack', |
| ('Navigator', 'geolocation'): 'NavigatorGeolocation', |
| ('Navigator', 'webkitPersistentStorage'): 'NavigatorStorageQuota', |
| ('Navigator', 'webkitTemporaryStorage'): 'NavigatorStorageQuota', |
| ('Navigator', 'registerProtocolHandler'): 'NavigatorContentUtils', |
| ('Navigator', 'unregisterProtocolHandler'): 'NavigatorContentUtils', |
| ('Navigator', 'webkitGetUserMedia'): 'NavigatorMediaStream', |
| ('Navigator', 'webkitGetGamepads'): 'NavigatorGamepad', |
| ('Navigator', 'requestMIDIAccess'): 'NavigatorWebMIDI', |
| ('Navigator', 'vibrate'): 'NavigatorVibration', |
| ('Navigator', 'appName'): 'NavigatorID', |
| ('Navigator', 'appVersion'): 'NavigatorID', |
| ('Navigator', 'platform'): 'NavigatorID', |
| ('Navigator', 'userAgent'): 'NavigatorID', |
| ('Navigator', 'onLine'): 'NavigatorOnLine', |
| ('WorkerGlobalScope', 'crypto'): 'WorkerGlobalScopeCrypto', |
| ('WorkerGlobalScope', 'indexedDB'): 'WorkerGlobalScopeIndexedDatabase', |
| ('WorkerGlobalScope', 'webkitNotifications'): 'WorkerGlobalScopeNotifications', |
| ('WorkerGlobalScope', 'openDatabase'): 'WorkerGlobalScopeWebDatabase', |
| ('WorkerGlobalScope', 'openDatabaseSync'): 'WorkerGlobalScopeWebDatabase', |
| ('WorkerGlobalScope', 'performance'): 'WorkerGlobalScopePerformance', |
| ('WorkerGlobalScope', 'webkitRequestFileSystem'): 'WorkerGlobalScopeFileSystem', |
| ('WorkerGlobalScope', 'webkitRequestFileSystemSync'): 'WorkerGlobalScopeFileSystem', |
| ('WorkerGlobalScope', 'webkitResolveLocalFileSystemURL'): 'WorkerGlobalScopeFileSystem', |
| ('WorkerGlobalScope', 'webkitResolveLocalFileSystemSyncURL'): 'WorkerGlobalScopeFileSystem', |
| ('WorkerGlobalScope', 'atob'): 'DOMWindowBase64', |
| ('WorkerGlobalScope', 'btoa'): 'DOMWindowBase64', |
| ('WorkerGlobalScope', 'clearTimeout'): 'DOMWindowTimers', |
| ('WorkerGlobalScope', 'clearInterval'): 'DOMWindowTimers', |
| } |
| |
| _cpp_import_map = { |
| 'ImageBitmapFactories' : 'modules/imagebitmap/ImageBitmapFactories' |
| } |
| |
| _cpp_overloaded_callback_map = { |
| ('DOMURL', 'createObjectUrlFromSourceCallback'): 'URLMediaSource', |
| ('DOMURL', 'createObjectUrlFromStreamCallback'): 'URLMediaStream', |
| ('DOMURL', '_createObjectUrlFromWebKitSourceCallback'): 'URLMediaSource', |
| ('DOMURL', '_createObjectURL_2Callback'): 'URLMediaSource', |
| ('DOMURL', '_createObjectURL_3Callback'): 'URLMediaSource', |
| ('DOMURL', '_createObjectURL_4Callback'): 'URLMediaStream', |
| } |
| |
| _cpp_partial_map = {} |
| |
| def _GetCPPPartialNames(interface): |
| interface_name = interface.ext_attrs.get('ImplementedAs', interface.id) |
| if not _cpp_partial_map: |
| for (type, member) in _cpp_callback_map.keys(): |
| if type not in _cpp_partial_map: |
| _cpp_partial_map[type] = set([]) |
| |
| name_with_path = _cpp_callback_map[(type, member)] |
| if name_with_path in _cpp_import_map: |
| name_with_path = _cpp_import_map[name_with_path] |
| _cpp_partial_map[type].add(name_with_path) |
| |
| for (type, member) in _cpp_overloaded_callback_map.keys(): |
| if type not in _cpp_partial_map: |
| _cpp_partial_map[type] = set([]) |
| _cpp_partial_map[type].add(_cpp_overloaded_callback_map[(type, member)]) |
| |
| if interface_name in _cpp_partial_map: |
| return _cpp_partial_map[interface_name] |
| else: |
| return set([]) |
| |
| def array_type(data_type): |
| matched = re.match(r'([\w\d_\s]+)\[\]', data_type) |
| if not matched: |
| return None |
| return matched.group(1) |
| |
| def _GetCPPTypeName(interface_name, callback_name, cpp_name): |
| # TODO(vsm): We need to track the original IDL file name in order to recover |
| # the proper CPP name. |
| |
| cpp_tuple = (interface_name, callback_name) |
| if cpp_tuple in _cpp_callback_map: |
| cpp_type_name = _cpp_callback_map[cpp_tuple] |
| elif (interface_name, cpp_name) in _cpp_overloaded_callback_map: |
| cpp_type_name = _cpp_overloaded_callback_map[(interface_name, cpp_name)] |
| else: |
| cpp_type_name = interface_name |
| return cpp_type_name |
| |
| class DartiumBackend(HtmlDartGenerator): |
| """Generates Dart implementation for one DOM IDL interface.""" |
| |
| def __init__(self, interface, cpp_library_emitter, options): |
| super(DartiumBackend, self).__init__(interface, options) |
| |
| self._interface = interface |
| self._cpp_library_emitter = cpp_library_emitter |
| self._database = options.database |
| self._template_loader = options.templates |
| self._type_registry = options.type_registry |
| self._interface_type_info = self._type_registry.TypeInfo(self._interface.id) |
| self._metadata = options.metadata |
| |
| def ImplementsMergedMembers(self): |
| # We could not add merged functions to implementation class because |
| # underlying c++ object doesn't implement them. Merged functions are |
| # generated on merged interface implementation instead. |
| return False |
| |
| def CustomJSMembers(self): |
| return {} |
| |
| def GenerateCallback(self, info): |
| if IsPureInterface(self._interface.id) or IsCustomType(self._interface.id): |
| return |
| |
| cpp_impl_includes = set(['"' + partial + '.h"' |
| for partial in _GetCPPPartialNames(self._interface)]) |
| cpp_header_handlers_emitter = emitter.Emitter() |
| cpp_impl_handlers_emitter = emitter.Emitter() |
| class_name = 'Dart%s' % self._interface.id |
| for operation in self._interface.operations: |
| parameters = [] |
| arguments = [] |
| conversion_includes = [] |
| for argument in operation.arguments: |
| argument_type_info = self._TypeInfo(argument.type.id) |
| parameters.append('%s %s' % (argument_type_info.parameter_type(), |
| argument.id)) |
| arguments.append(argument_type_info.to_dart_conversion(argument.id)) |
| conversion_includes.extend(argument_type_info.conversion_includes()) |
| |
| cpp_header_handlers_emitter.Emit( |
| '\n' |
| ' virtual bool handleEvent($PARAMETERS);\n', |
| PARAMETERS=', '.join(parameters)) |
| |
| if 'Custom' in operation.ext_attrs: |
| continue |
| |
| cpp_impl_includes |= set(conversion_includes) |
| arguments_declaration = 'Dart_Handle arguments[] = { %s }' % ', '.join(arguments) |
| if not len(arguments): |
| arguments_declaration = 'Dart_Handle* arguments = 0' |
| cpp_impl_handlers_emitter.Emit( |
| '\n' |
| 'bool $CLASS_NAME::handleEvent($PARAMETERS)\n' |
| '{\n' |
| ' if (!m_callback.isIsolateAlive())\n' |
| ' return false;\n' |
| ' DartIsolateScope scope(m_callback.isolate());\n' |
| ' DartApiScope apiScope;\n' |
| ' $ARGUMENTS_DECLARATION;\n' |
| ' return m_callback.handleEvent($ARGUMENT_COUNT, arguments);\n' |
| '}\n', |
| CLASS_NAME=class_name, |
| PARAMETERS=', '.join(parameters), |
| ARGUMENTS_DECLARATION=arguments_declaration, |
| ARGUMENT_COUNT=len(arguments)) |
| |
| cpp_header_emitter = self._cpp_library_emitter.CreateHeaderEmitter( |
| self._interface.id, |
| self._renamer.GetLibraryName(self._interface), |
| True) |
| cpp_header_emitter.Emit( |
| self._template_loader.Load('cpp_callback_header.template'), |
| INTERFACE=self._interface.id, |
| HANDLERS=cpp_header_handlers_emitter.Fragments()) |
| |
| cpp_impl_emitter = self._cpp_library_emitter.CreateSourceEmitter(self._interface.id) |
| cpp_impl_emitter.Emit( |
| self._template_loader.Load('cpp_callback_implementation.template'), |
| INCLUDES=self._GenerateCPPIncludes(cpp_impl_includes), |
| INTERFACE=self._interface.id, |
| HANDLERS=cpp_impl_handlers_emitter.Fragments()) |
| |
| def ImplementationTemplate(self): |
| template = None |
| interface_name = self._interface.doc_js_name |
| if interface_name == self._interface.id or not self._database.HasInterface(interface_name): |
| template_file = 'impl_%s.darttemplate' % interface_name |
| template = self._template_loader.TryLoad(template_file) |
| if not template: |
| template = self._template_loader.Load('dart_implementation.darttemplate') |
| return template |
| |
| def RootClassName(self): |
| return 'NativeFieldWrapperClass1' |
| |
| def NativeSpec(self): |
| return '' |
| |
| def StartInterface(self, members_emitter): |
| # Create emitters for c++ implementation. |
| if not IsPureInterface(self._interface.id) and not IsCustomType(self._interface.id): |
| self._cpp_header_emitter = self._cpp_library_emitter.CreateHeaderEmitter( |
| self._interface.id, |
| self._renamer.GetLibraryName(self._interface)) |
| self._cpp_impl_emitter = self._cpp_library_emitter.CreateSourceEmitter(self._interface.id) |
| else: |
| self._cpp_header_emitter = emitter.Emitter() |
| self._cpp_impl_emitter = emitter.Emitter() |
| |
| self._interface_type_info = self._TypeInfo(self._interface.id) |
| self._members_emitter = members_emitter |
| self._cpp_declarations_emitter = emitter.Emitter() |
| self._cpp_impl_includes = set(['"' + partial + '.h"' |
| for partial in _GetCPPPartialNames(self._interface)]) |
| self._cpp_definitions_emitter = emitter.Emitter() |
| self._cpp_resolver_emitter = emitter.Emitter() |
| |
| # We need to revisit our treatment of typed arrays, right now |
| # it is full of hacks. |
| if self._interface.ext_attrs.get('ConstructorTemplate') == 'TypedArray': |
| self._cpp_resolver_emitter.Emit( |
| ' if (name == "$(INTERFACE_NAME)_constructor_Callback")\n' |
| ' return Dart$(INTERFACE_NAME)Internal::constructorCallback;\n', |
| INTERFACE_NAME=self._interface.id) |
| |
| self._cpp_impl_includes.add('"DartArrayBufferViewCustom.h"'); |
| self._cpp_definitions_emitter.Emit( |
| '\n' |
| 'static void constructorCallback(Dart_NativeArguments args)\n' |
| '{\n' |
| ' WebCore::DartArrayBufferViewInternal::constructWebGLArray<Dart$(INTERFACE_NAME)>(args);\n' |
| '}\n', |
| INTERFACE_NAME=self._interface.id); |
| |
| def _EmitConstructorInfrastructure(self, |
| constructor_info, constructor_callback_cpp_name, factory_method_name, |
| argument_count=None): |
| constructor_callback_id = self._interface.id + '_' + constructor_callback_cpp_name |
| if argument_count is None: |
| argument_count = len(constructor_info.param_infos) |
| |
| self._members_emitter.Emit( |
| '\n @DocsEditable()\n' |
| ' static $INTERFACE_NAME $FACTORY_METHOD_NAME($PARAMETERS) ' |
| 'native "$ID";\n', |
| INTERFACE_NAME=self._interface_type_info.interface_name(), |
| FACTORY_METHOD_NAME=factory_method_name, |
| # TODO: add types to parameters. |
| PARAMETERS=constructor_info.ParametersAsArgumentList(argument_count), |
| ID=constructor_callback_id) |
| |
| self._cpp_resolver_emitter.Emit( |
| ' if (name == "$ID")\n' |
| ' return Dart$(WEBKIT_INTERFACE_NAME)Internal::$CPP_CALLBACK;\n', |
| ID=constructor_callback_id, |
| WEBKIT_INTERFACE_NAME=self._interface.id, |
| CPP_CALLBACK=constructor_callback_cpp_name) |
| |
| def GenerateCustomFactory(self, constructor_info): |
| if 'CustomConstructor' not in self._interface.ext_attrs: |
| return False |
| |
| annotations = self._metadata.GetFormattedMetadata(self._library_name, |
| self._interface, self._interface.id, ' ') |
| |
| self._members_emitter.Emit( |
| '\n $(ANNOTATIONS)factory $CTOR($PARAMS) => _create($FACTORY_PARAMS);\n', |
| ANNOTATIONS=annotations, |
| CTOR=constructor_info._ConstructorFullName(self._DartType), |
| PARAMS=constructor_info.ParametersDeclaration(self._DartType), |
| FACTORY_PARAMS= \ |
| constructor_info.ParametersAsArgumentList()) |
| |
| constructor_callback_cpp_name = 'constructorCallback' |
| self._EmitConstructorInfrastructure( |
| constructor_info, constructor_callback_cpp_name, '_create') |
| |
| self._cpp_declarations_emitter.Emit( |
| '\n' |
| 'void $CPP_CALLBACK(Dart_NativeArguments);\n', |
| CPP_CALLBACK=constructor_callback_cpp_name) |
| |
| return True |
| |
| def IsConstructorArgumentOptional(self, argument): |
| return False |
| |
| def EmitStaticFactoryOverload(self, constructor_info, name, arguments): |
| constructor_callback_cpp_name = name + 'constructorCallback' |
| self._EmitConstructorInfrastructure( |
| constructor_info, constructor_callback_cpp_name, name, len(arguments)) |
| |
| ext_attrs = self._interface.ext_attrs |
| |
| create_function = 'create' |
| if 'NamedConstructor' in ext_attrs: |
| create_function = 'createForJSConstructor' |
| function_expression = '%s::%s' % (self._interface_type_info.native_type(), create_function) |
| self._GenerateNativeCallback( |
| constructor_callback_cpp_name, |
| False, |
| function_expression, |
| self._interface, |
| arguments, |
| self._interface.id, |
| False, |
| 'ConstructorRaisesException' in ext_attrs or 'RaisesException' in ext_attrs) |
| |
| def HasSupportCheck(self): |
| # Need to omit a support check if it is conditional in JS. |
| return self._interface.doc_js_name in js_support_checks |
| |
| def GetSupportCheck(self): |
| # Assume that everything is supported on Dartium. |
| value = js_support_checks.get(self._interface.doc_js_name) |
| if type(value) == tuple: |
| return (value[0], 'true') |
| else: |
| return 'true' |
| |
| def FinishInterface(self): |
| self._GenerateCPPHeader() |
| |
| self._cpp_impl_emitter.Emit( |
| self._template_loader.Load('cpp_implementation.template'), |
| INTERFACE=self._interface.id, |
| INCLUDES=self._GenerateCPPIncludes(self._cpp_impl_includes), |
| CALLBACKS=self._cpp_definitions_emitter.Fragments(), |
| RESOLVER=self._cpp_resolver_emitter.Fragments(), |
| WEBCORE_CLASS_NAME=self._interface_type_info.native_type(), |
| WEBCORE_CLASS_NAME_ESCAPED= |
| self._interface_type_info.native_type().replace('<', '_').replace('>', '_'), |
| DART_IMPLEMENTATION_CLASS=self._interface_type_info.implementation_name(), |
| DART_IMPLEMENTATION_LIBRARY_ID='Dart%sLibraryId' % self._renamer.GetLibraryId(self._interface)) |
| |
| def _GenerateCPPHeader(self): |
| to_native_emitter = emitter.Emitter() |
| if self._interface_type_info.custom_to_native(): |
| return_type = 'PassRefPtr<NativeType>' |
| to_native_body = ';' |
| to_native_arg_body = ';' |
| else: |
| return_type = 'NativeType*' |
| to_native_body = emitter.Format( |
| '\n' |
| ' {\n' |
| ' return DartDOMWrapper::unwrapDartWrapper<Dart$INTERFACE>(handle, exception);\n' |
| ' }', |
| INTERFACE=self._interface.id) |
| to_native_arg_body = emitter.Format( |
| '\n' |
| ' {\n' |
| ' return DartDOMWrapper::unwrapDartWrapper<Dart$INTERFACE>(args, index, exception);\n' |
| ' }', |
| INTERFACE=self._interface.id) |
| |
| to_native_emitter.Emit( |
| ' static $RETURN_TYPE toNative(Dart_Handle handle, Dart_Handle& exception)$TO_NATIVE_BODY\n' |
| '\n' |
| ' static $RETURN_TYPE toNativeWithNullCheck(Dart_Handle handle, Dart_Handle& exception)\n' |
| ' {\n' |
| ' return Dart_IsNull(handle) ? 0 : toNative(handle, exception);\n' |
| ' }\n' |
| '\n' |
| ' static $RETURN_TYPE toNative(Dart_NativeArguments args, int index, Dart_Handle& exception)$TO_NATIVE_ARG_BODY\n' |
| '\n' |
| ' static $RETURN_TYPE toNativeWithNullCheck(Dart_NativeArguments args, int index, Dart_Handle& exception)\n' |
| ' {\n' |
| ' // toNative accounts for Null objects also.\n' |
| ' return toNative(args, index, exception);\n' |
| ' }\n', |
| RETURN_TYPE=return_type, |
| TO_NATIVE_BODY=to_native_body, |
| TO_NATIVE_ARG_BODY=to_native_arg_body, |
| INTERFACE=self._interface.id) |
| |
| to_dart_emitter = emitter.Emitter() |
| |
| ext_attrs = self._interface.ext_attrs |
| |
| to_dart_emitter.Emit( |
| ' static Dart_Handle toDart(NativeType* value)\n' |
| ' {\n' |
| ' if (!value)\n' |
| ' return Dart_Null();\n' |
| ' DartDOMData* domData = DartDOMData::current();\n' |
| ' Dart_WeakPersistentHandle result =\n' |
| ' DartDOMWrapper::lookupWrapper(domData, isNode, value);\n' |
| ' if (result)\n' |
| ' return Dart_HandleFromWeakPersistent(result);\n' |
| ' return createWrapper(value);\n' |
| ' }\n' |
| ' static void returnToDart(Dart_NativeArguments args,\n' |
| ' NativeType* value)\n' |
| ' {\n' |
| ' if (value) {\n' |
| ' DartDOMData* domData = static_cast<DartDOMData*>(\n' |
| ' Dart_GetNativeIsolateData(args));\n' |
| ' Dart_WeakPersistentHandle result =\n' |
| ' DartDOMWrapper::lookupWrapper(domData, isNode, value);\n' |
| ' if (result)\n' |
| ' Dart_SetWeakHandleReturnValue(args, result);\n' |
| ' else\n' |
| ' Dart_SetReturnValue(args, createWrapper(value));\n' |
| ' }\n' |
| ' }\n', |
| ) |
| |
| if ('CustomToV8' in ext_attrs or |
| 'PureInterface' in ext_attrs or |
| 'CPPPureInterface' in ext_attrs or |
| self._interface_type_info.custom_to_dart()): |
| to_dart_emitter.Emit( |
| ' static Dart_Handle createWrapper(NativeType* value);\n') |
| else: |
| to_dart_emitter.Emit( |
| ' static Dart_Handle createWrapper(NativeType* value)\n' |
| ' {\n' |
| ' DartDOMData* domData = DartDOMData::current();\n' |
| ' return DartDOMWrapper::createWrapper<Dart$(INTERFACE)>(domData, value);\n' |
| ' }\n', |
| INTERFACE=self._interface.id) |
| |
| webcore_includes = self._GenerateCPPIncludes( |
| self._interface_type_info.webcore_includes()) |
| |
| is_node_test = lambda interface: interface.id == 'Node' |
| is_active_test = lambda interface: 'ActiveDOMObject' in interface.ext_attrs |
| is_event_target_test = lambda interface: 'EventTarget' in interface.ext_attrs |
| def TypeCheckHelper(test): |
| return 'true' if any(map(test, self._database.Hierarchy(self._interface))) else 'false' |
| |
| self._cpp_header_emitter.Emit( |
| self._template_loader.Load('cpp_header.template'), |
| INTERFACE=self._interface.id, |
| WEBCORE_INCLUDES=webcore_includes, |
| WEBCORE_CLASS_NAME=self._interface_type_info.native_type(), |
| WEBCORE_CLASS_NAME_ESCAPED= |
| self._interface_type_info.native_type().replace('<', '_').replace('>', '_'), |
| DECLARATIONS=self._cpp_declarations_emitter.Fragments(), |
| IS_NODE=TypeCheckHelper(is_node_test), |
| IS_ACTIVE=TypeCheckHelper(is_active_test), |
| IS_EVENT_TARGET=TypeCheckHelper(is_event_target_test), |
| TO_NATIVE=to_native_emitter.Fragments(), |
| TO_DART=to_dart_emitter.Fragments()) |
| |
| def EmitAttribute(self, attribute, html_name, read_only): |
| self._AddGetter(attribute, html_name, read_only) |
| if not read_only: |
| self._AddSetter(attribute, html_name) |
| |
| def _AddGetter(self, attr, html_name, read_only): |
| # Temporary hack to force dart:scalarlist clamped array for ImageData.data. |
| # TODO(antonm): solve in principled way. |
| if self._interface.id == 'ImageData' and html_name == 'data': |
| html_name = '_data' |
| type_info = self._TypeInfo(attr.type.id) |
| dart_declaration = '%s get %s' % ( |
| self.SecureOutputType(attr.type.id, False, read_only), html_name) |
| is_custom = 'Custom' in attr.ext_attrs or 'CustomGetter' in attr.ext_attrs |
| cpp_callback_name = self._GenerateNativeBinding(attr.id, 1, |
| dart_declaration, 'Getter', is_custom) |
| if is_custom: |
| return |
| |
| if 'Reflect' in attr.ext_attrs: |
| webcore_function_name = self._TypeInfo(attr.type.id).webcore_getter_name() |
| if 'URL' in attr.ext_attrs: |
| if 'NonEmpty' in attr.ext_attrs: |
| webcore_function_name = 'getNonEmptyURLAttribute' |
| else: |
| webcore_function_name = 'getURLAttribute' |
| elif 'ImplementedAs' in attr.ext_attrs: |
| webcore_function_name = attr.ext_attrs['ImplementedAs'] |
| else: |
| if attr.id == 'operator': |
| webcore_function_name = '_operator' |
| elif attr.id == 'target' and attr.type.id == 'SVGAnimatedString': |
| webcore_function_name = 'svgTarget' |
| elif attr.id == 'CSS': |
| webcore_function_name = 'css' |
| else: |
| webcore_function_name = self._ToWebKitName(attr.id) |
| |
| function_expression = self._GenerateWebCoreFunctionExpression(webcore_function_name, attr) |
| self._GenerateNativeCallback( |
| cpp_callback_name, |
| True, |
| function_expression, |
| attr, |
| [], |
| attr.type.id, |
| attr.type.nullable, |
| 'GetterRaisesException' in attr.ext_attrs or 'RaisesException' in attr.ext_attrs) |
| |
| def _AddSetter(self, attr, html_name): |
| type_info = self._TypeInfo(attr.type.id) |
| dart_declaration = 'void set %s(%s value)' % (html_name, self._DartType(attr.type.id)) |
| is_custom = set(['Custom', 'CustomSetter', 'V8CustomSetter']) & set(attr.ext_attrs) |
| cpp_callback_name = self._GenerateNativeBinding(attr.id, 2, |
| dart_declaration, 'Setter', is_custom) |
| if is_custom: |
| return |
| |
| if 'Reflect' in attr.ext_attrs: |
| webcore_function_name = self._TypeInfo(attr.type.id).webcore_setter_name() |
| else: |
| webcore_function_name = re.sub(r'^(xml(?=[A-Z])|\w)', |
| lambda s: s.group(1).upper(), |
| attr.id) |
| webcore_function_name = 'set%s' % webcore_function_name |
| |
| function_expression = self._GenerateWebCoreFunctionExpression(webcore_function_name, attr) |
| self._GenerateNativeCallback( |
| cpp_callback_name, |
| True, |
| function_expression, |
| attr, |
| [attr], |
| 'void', |
| False, |
| 'SetterRaisesException' in attr.ext_attrs, |
| requires_custom_element_callback=True) |
| |
| def AddIndexer(self, element_type): |
| """Adds all the methods required to complete implementation of List.""" |
| # We would like to simply inherit the implementation of everything except |
| # length, [], and maybe []=. It is possible to extend from a base |
| # array implementation class only when there is no other implementation |
| # inheritance. There might be no implementation inheritance other than |
| # DOMBaseWrapper for many classes, but there might be some where the |
| # array-ness is introduced by a non-root interface: |
| # |
| # interface Y extends X, List<T> ... |
| # |
| # In the non-root case we have to choose between: |
| # |
| # class YImpl extends XImpl { add List<T> methods; } |
| # |
| # and |
| # |
| # class YImpl extends ListBase<T> { copies of transitive XImpl methods; } |
| # |
| dart_element_type = self._DartType(element_type) |
| if self._HasNativeIndexGetter(): |
| self._EmitNativeIndexGetter(dart_element_type) |
| elif self._HasExplicitIndexedGetter(): |
| self._EmitExplicitIndexedGetter(dart_element_type) |
| else: |
| self._members_emitter.Emit( |
| '\n' |
| ' $TYPE operator[](int index) {\n' |
| ' if (index < 0 || index >= length)\n' |
| ' throw new RangeError.range(index, 0, length);\n' |
| ' return _nativeIndexedGetter(index);\n' |
| ' }\n' |
| ' $TYPE _nativeIndexedGetter(int index) native "$(INTERFACE)_item_Callback";\n', |
| TYPE=self.SecureOutputType(element_type), |
| INTERFACE=self._interface.id) |
| |
| if self._HasNativeIndexSetter(): |
| self._EmitNativeIndexSetter(dart_element_type) |
| else: |
| self._members_emitter.Emit( |
| '\n' |
| ' void operator[]=(int index, $TYPE value) {\n' |
| ' throw new UnsupportedError("Cannot assign element of immutable List.");\n' |
| ' }\n', |
| TYPE=dart_element_type) |
| |
| self.EmitListMixin(dart_element_type) |
| |
| def AmendIndexer(self, element_type): |
| # If interface is marked as having native indexed |
| # getter or setter, we must emit overrides as it's not |
| # guaranteed that the corresponding methods in C++ would be |
| # virtual. For example, as of time of writing, even though |
| # Uint8ClampedArray inherits from Uint8Array, ::set method |
| # is not virtual and accessing it through Uint8Array pointer |
| # would lead to wrong semantics (modulo vs. clamping.) |
| dart_element_type = self._DartType(element_type) |
| |
| if self._HasNativeIndexGetter(): |
| self._EmitNativeIndexGetter(dart_element_type) |
| if self._HasNativeIndexSetter(): |
| self._EmitNativeIndexSetter(dart_element_type) |
| |
| def _HasNativeIndexGetter(self): |
| return 'CustomIndexedGetter' in self._interface.ext_attrs |
| |
| def _EmitNativeIndexGetter(self, element_type): |
| dart_declaration = '%s operator[](int index)' % \ |
| self.SecureOutputType(element_type, True) |
| self._GenerateNativeBinding('numericIndexGetter', 2, dart_declaration, |
| 'Callback', True) |
| |
| def _HasExplicitIndexedGetter(self): |
| return any(op.id == 'getItem' for op in self._interface.operations) |
| |
| def _EmitExplicitIndexedGetter(self, dart_element_type): |
| if any(op.id == 'getItem' for op in self._interface.operations): |
| indexed_getter = 'getItem' |
| |
| self._members_emitter.Emit( |
| '\n' |
| ' $TYPE operator[](int index) {\n' |
| ' if (index < 0 || index >= length)\n' |
| ' throw new RangeError.range(index, 0, length);\n' |
| ' return $INDEXED_GETTER(index);\n' |
| ' }\n', |
| TYPE=dart_element_type, |
| INDEXED_GETTER=indexed_getter) |
| |
| def _HasNativeIndexSetter(self): |
| return 'CustomIndexedSetter' in self._interface.ext_attrs |
| |
| def _EmitNativeIndexSetter(self, element_type): |
| dart_declaration = 'void operator[]=(int index, %s value)' % element_type |
| self._GenerateNativeBinding('numericIndexSetter', 3, dart_declaration, |
| 'Callback', True) |
| |
| def EmitOperation(self, info, html_name): |
| """ |
| Arguments: |
| info: An OperationInfo object. |
| """ |
| |
| dart_declaration = '%s%s %s(%s)' % ( |
| 'static ' if info.IsStatic() else '', |
| self.SecureOutputType(info.type_name, False, True), |
| html_name, |
| info.ParametersDeclaration(self._DartType)) |
| |
| operation = info.operations[0] |
| is_custom = 'Custom' in operation.ext_attrs |
| has_optional_arguments = any(self._IsArgumentOptionalInWebCore(operation, argument) for argument in operation.arguments) |
| needs_dispatcher = not is_custom and (len(info.operations) > 1 or has_optional_arguments) |
| |
| if info.callback_args: |
| self._AddFutureifiedOperation(info, html_name) |
| elif not needs_dispatcher: |
| # Bind directly to native implementation |
| argument_count = (0 if info.IsStatic() else 1) + len(info.param_infos) |
| cpp_callback_name = self._GenerateNativeBinding( |
| info.name, argument_count, dart_declaration, 'Callback', is_custom) |
| if not is_custom: |
| self._GenerateOperationNativeCallback(operation, operation.arguments, cpp_callback_name) |
| else: |
| self._GenerateDispatcher(info, info.operations, dart_declaration) |
| |
| def _GenerateDispatcher(self, info, operations, dart_declaration): |
| |
| def GenerateCall( |
| stmts_emitter, call_emitter, version, operation, argument_count): |
| overload_name = '_%s_%s' % (operation.id, version) |
| argument_list = ', '.join( |
| [p.name for p in info.param_infos[:argument_count]]) |
| call_emitter.Emit('$NAME($ARGS)', NAME=overload_name, ARGS=argument_list) |
| |
| dart_declaration = '%s%s %s(%s)' % ( |
| 'static ' if operation.is_static else '', |
| self.SecureOutputType(operation.type.id), |
| overload_name, argument_list) |
| is_custom = 'Custom' in operation.ext_attrs |
| cpp_callback_name = self._GenerateNativeBinding( |
| overload_name, (0 if operation.is_static else 1) + argument_count, |
| dart_declaration, 'Callback', is_custom, emit_metadata=False) |
| if not is_custom: |
| self._GenerateOperationNativeCallback(operation, operation.arguments[:argument_count], cpp_callback_name) |
| |
| self._GenerateDispatcherBody( |
| info, |
| operations, |
| dart_declaration, |
| GenerateCall, |
| self._IsArgumentOptionalInWebCore) |
| |
| def SecondaryContext(self, interface): |
| pass |
| |
| def _GenerateOperationNativeCallback(self, operation, arguments, cpp_callback_name): |
| webcore_function_name = operation.ext_attrs.get('ImplementedAs', operation.id) |
| function_expression = self._GenerateWebCoreFunctionExpression(webcore_function_name, operation, cpp_callback_name) |
| self._GenerateNativeCallback( |
| cpp_callback_name, |
| not operation.is_static, |
| function_expression, |
| operation, |
| arguments, |
| operation.type.id, |
| operation.type.nullable, |
| 'RaisesException' in operation.ext_attrs) |
| |
| def _GenerateNativeCallback(self, |
| callback_name, |
| needs_receiver, |
| function_expression, |
| node, |
| arguments, |
| return_type, |
| return_type_is_nullable, |
| raises_dom_exception, |
| requires_custom_element_callback=False): |
| |
| ext_attrs = node.ext_attrs |
| |
| cpp_arguments = [] |
| runtime_check = None |
| raises_exceptions = raises_dom_exception or arguments |
| needs_custom_element_callbacks = False |
| |
| # TODO(antonm): unify with ScriptState below. |
| requires_stack_info = (ext_attrs.get('CallWith') == 'ScriptArguments|ScriptState' or |
| ext_attrs.get('ConstructorCallWith') == 'ScriptArguments|ScriptState' or |
| ext_attrs.get('CallWith') == 'ScriptArguments&ScriptState' or |
| ext_attrs.get('ConstructorCallWith') == 'ScriptArguments&ScriptState') |
| if requires_stack_info: |
| raises_exceptions = True |
| cpp_arguments = ['&state', 'scriptArguments.release()'] |
| # WebKit uses scriptArguments to reconstruct last argument, so |
| # it's not needed and should be just removed. |
| arguments = arguments[:-1] |
| |
| # TODO(antonm): unify with ScriptState below. |
| requires_script_arguments = (ext_attrs.get('CallWith') == 'ScriptArguments' or |
| ext_attrs.get('ConstructorCallWith') == 'ScriptArguments') |
| if requires_script_arguments: |
| raises_exceptions = True |
| cpp_arguments = ['scriptArguments.release()'] |
| # WebKit uses scriptArguments to reconstruct last argument, so |
| # it's not needed and should be just removed. |
| arguments = arguments[:-1] |
| |
| requires_script_execution_context = (ext_attrs.get('CallWith') == 'ScriptExecutionContext' or |
| ext_attrs.get('ConstructorCallWith') == 'ScriptExecutionContext') |
| |
| requires_document = ext_attrs.get('ConstructorCallWith') == 'Document' |
| |
| if requires_script_execution_context: |
| raises_exceptions = True |
| cpp_arguments = ['context'] |
| |
| requires_script_state = (ext_attrs.get('CallWith') == 'ScriptState' or |
| ext_attrs.get('ConstructorCallWith') == 'ScriptState') |
| if requires_script_state: |
| raises_exceptions = True |
| cpp_arguments = ['&state'] |
| |
| requires_dom_window = 'NamedConstructor' in ext_attrs |
| if requires_dom_window or requires_document: |
| raises_exceptions = True |
| cpp_arguments = ['document'] |
| |
| if 'ImplementedBy' in ext_attrs: |
| assert needs_receiver |
| self._cpp_impl_includes.add('"%s.h"' % ext_attrs['ImplementedBy']) |
| cpp_arguments.append('receiver') |
| |
| if 'Reflect' in ext_attrs: |
| cpp_arguments = [self._GenerateWebCoreReflectionAttributeName(node)] |
| |
| if ext_attrs.get('CustomElementCallbacks') == 'Enable' or requires_custom_element_callback: |
| self._cpp_impl_includes.add('"core/dom/CustomElementCallbackDispatcher.h"') |
| needs_custom_element_callbacks = True |
| |
| if return_type_is_nullable: |
| cpp_arguments = ['isNull'] |
| |
| v8EnabledPerContext = ext_attrs.get('synthesizedV8EnabledPerContext', ext_attrs.get('V8EnabledPerContext')) |
| v8EnabledAtRuntime = ext_attrs.get('synthesizedV8EnabledAtRuntime', ext_attrs.get('V8EnabledAtRuntime')) |
| assert(not (v8EnabledPerContext and v8EnabledAtRuntime)) |
| |
| if v8EnabledPerContext: |
| raises_exceptions = True |
| self._cpp_impl_includes.add('"ContextFeatures.h"') |
| self._cpp_impl_includes.add('"DOMWindow.h"') |
| runtime_check = emitter.Format( |
| ' if (!ContextFeatures::$(FEATURE)Enabled(DartUtilities::domWindowForCurrentIsolate()->document())) {\n' |
| ' exception = Dart_NewStringFromCString("Feature $FEATURE is not enabled");\n' |
| ' goto fail;\n' |
| ' }', |
| FEATURE=v8EnabledPerContext) |
| |
| if v8EnabledAtRuntime: |
| raises_exceptions = True |
| self._cpp_impl_includes.add('"RuntimeEnabledFeatures.h"') |
| runtime_check = emitter.Format( |
| ' if (!RuntimeEnabledFeatures::$(FEATURE)Enabled()) {\n' |
| ' exception = Dart_NewStringFromCString("Feature $FEATURE is not enabled");\n' |
| ' goto fail;\n' |
| ' }', |
| FEATURE=self._ToWebKitName(v8EnabledAtRuntime)) |
| |
| body_emitter = self._cpp_definitions_emitter.Emit( |
| '\n' |
| 'static void $CALLBACK_NAME(Dart_NativeArguments args)\n' |
| '{\n' |
| '$!BODY' |
| '}\n', |
| CALLBACK_NAME=callback_name) |
| |
| if raises_exceptions: |
| body_emitter = body_emitter.Emit( |
| ' Dart_Handle exception = 0;\n' |
| '$!BODY' |
| '\n' |
| 'fail:\n' |
| ' Dart_ThrowException(exception);\n' |
| ' ASSERT_NOT_REACHED();\n') |
| |
| body_emitter = body_emitter.Emit( |
| ' {\n' |
| '$!BODY' |
| ' return;\n' |
| ' }\n') |
| |
| if runtime_check: |
| body_emitter.Emit( |
| '$RUNTIME_CHECK\n', |
| RUNTIME_CHECK=runtime_check) |
| |
| if requires_script_execution_context: |
| body_emitter.Emit( |
| ' ScriptExecutionContext* context = DartUtilities::scriptExecutionContext();\n' |
| ' if (!context) {\n' |
| ' exception = Dart_NewStringFromCString("Failed to retrieve a context");\n' |
| ' goto fail;\n' |
| ' }\n\n') |
| |
| if requires_script_state: |
| body_emitter.Emit( |
| ' ScriptState* currentState = ScriptState::current();\n' |
| ' if (!currentState) {\n' |
| ' exception = Dart_NewStringFromCString("Failed to retrieve a script state");\n' |
| ' goto fail;\n' |
| ' }\n' |
| ' ScriptState& state = *currentState;\n\n') |
| |
| if requires_dom_window or requires_document: |
| self._cpp_impl_includes.add('"DOMWindow.h"') |
| body_emitter.Emit( |
| ' DOMWindow* domWindow = DartUtilities::domWindowForCurrentIsolate();\n' |
| ' if (!domWindow) {\n' |
| ' exception = Dart_NewStringFromCString("Failed to fetch domWindow");\n' |
| ' goto fail;\n' |
| ' }\n' |
| ' Document* document = domWindow->document();\n') |
| |
| if needs_receiver: |
| body_emitter.Emit( |
| ' $WEBCORE_CLASS_NAME* receiver = DartDOMWrapper::receiver< $WEBCORE_CLASS_NAME >(args);\n', |
| WEBCORE_CLASS_NAME=self._interface_type_info.native_type()) |
| |
| if requires_stack_info: |
| self._cpp_impl_includes.add('"ScriptArguments.h"') |
| self._cpp_impl_includes.add('"ScriptCallStack.h"') |
| body_emitter.Emit( |
| '\n' |
| ' ScriptState* currentState = ScriptState::current();\n' |
| ' if (!currentState) {\n' |
| ' exception = Dart_NewStringFromCString("Failed to retrieve a script state");\n' |
| ' goto fail;\n' |
| ' }\n' |
| ' ScriptState& state = *currentState;\n' |
| '\n' |
| ' Dart_Handle customArgument = Dart_GetNativeArgument(args, $INDEX);\n' |
| ' RefPtr<ScriptArguments> scriptArguments(DartUtilities::createScriptArguments(customArgument, exception));\n' |
| ' if (!scriptArguments)\n' |
| ' goto fail;\n' |
| ' RefPtr<ScriptCallStack> scriptCallStack(DartUtilities::createScriptCallStack());\n' |
| ' if (!scriptCallStack->size())\n' |
| ' return;\n', |
| INDEX=len(arguments) + 1) |
| |
| if requires_script_arguments: |
| self._cpp_impl_includes.add('"ScriptArguments.h"') |
| body_emitter.Emit( |
| '\n' |
| ' Dart_Handle customArgument = Dart_GetNativeArgument(args, $INDEX);\n' |
| ' RefPtr<ScriptArguments> scriptArguments(DartUtilities::createScriptArguments(customArgument, exception));\n' |
| ' if (!scriptArguments)\n' |
| ' goto fail;\n' |
| ' RefPtr<ScriptCallStack> scriptCallStack(DartUtilities::createScriptCallStack());\n' |
| ' if (!scriptCallStack->size())\n' |
| ' return;\n', |
| INDEX=len(arguments) + 1) |
| |
| if needs_custom_element_callbacks: |
| body_emitter.Emit(' CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;\n'); |
| |
| # Emit arguments. |
| start_index = 1 if needs_receiver else 0 |
| for i, argument in enumerate(arguments): |
| type_info = self._TypeInfo(argument.type.id) |
| self._cpp_impl_includes |= set(type_info.conversion_includes()) |
| argument_expression_template, type, cls, function = \ |
| type_info.to_native_info(argument, self._interface.id) |
| |
| def AllowsNull(): |
| # TODO(vsm): HTMLSelectElement's indexed setter treats a null as a remove. |
| # We need to handle that. |
| # assert argument.ext_attrs.get('TreatNullAs', 'NullString') == 'NullString' |
| if argument.ext_attrs.get('TreatNullAs') == 'NullString': |
| return True |
| |
| if argument.type.nullable: |
| return True |
| |
| if isinstance(argument, IDLAttribute): |
| return (argument.type.id == 'DOMString') and \ |
| ('Reflect' in argument.ext_attrs) |
| |
| if isinstance(argument, IDLArgument): |
| if IsOptional(argument) and not self._IsArgumentOptionalInWebCore(node, argument): |
| return True |
| if argument.ext_attrs.get('Default') == 'NullString': |
| return True |
| if _IsOptionalStringArgumentInInitEventMethod(self._interface, node, argument): |
| return True |
| |
| return False |
| |
| if AllowsNull(): |
| function += 'WithNullCheck' |
| |
| argument_name = DartDomNameOfAttribute(argument) |
| if type_info.pass_native_by_ref(): |
| invocation_template =\ |
| ' $TYPE $ARGUMENT_NAME;\n'\ |
| ' $CLS::$FUNCTION(args, $INDEX, $ARGUMENT_NAME, exception);\n' |
| else: |
| invocation_template =\ |
| ' $TYPE $ARGUMENT_NAME = $CLS::$FUNCTION(args, $INDEX, exception);\n' |
| body_emitter.Emit( |
| '\n' + |
| invocation_template + |
| ' if (exception)\n' |
| ' goto fail;\n', |
| TYPE=type, |
| ARGUMENT_NAME=argument_name, |
| CLS=cls, |
| FUNCTION=function, |
| INDEX=start_index + i) |
| self._cpp_impl_includes.add('"%s.h"' % cls) |
| cpp_arguments.append(argument_expression_template % argument_name) |
| |
| body_emitter.Emit('\n') |
| |
| if 'NeedsUserGestureCheck' in ext_attrs: |
| cpp_arguments.append('DartUtilities::processingUserGesture') |
| |
| invocation_emitter = body_emitter |
| if raises_dom_exception: |
| cpp_arguments.append('es') |
| invocation_emitter = body_emitter.Emit( |
| ' DartExceptionState es;\n' |
| '$!INVOCATION' |
| ' if (es.hadException()) {\n' |
| ' exception = DartDOMWrapper::exceptionCodeToDartException(es);\n' |
| ' goto fail;\n' |
| ' }\n') |
| |
| |
| if needs_receiver: |
| interface_name = self._interface_type_info.native_type() |
| # Hack to determine if this came from the _cpp_callback_map. |
| # In this case, the getter is mapped to a static method. |
| if (not function_expression.startswith('receiver->') and |
| not function_expression.startswith(interface_name + '::')): |
| if interface_name == 'DOMWindow' or interface_name == 'Navigator' or interface_name == 'WorkerGlobalScope': |
| cpp_arguments.insert(0, 'receiver') |
| else: |
| cpp_arguments.append('receiver') |
| |
| function_call = '%s(%s)' % (function_expression, ', '.join(cpp_arguments)) |
| if return_type == 'void': |
| invocation_emitter.Emit( |
| ' $FUNCTION_CALL;\n', |
| FUNCTION_CALL=function_call) |
| else: |
| return_type_info = self._TypeInfo(return_type) |
| self._cpp_impl_includes |= set(return_type_info.conversion_includes()) |
| |
| if return_type_is_nullable: |
| invocation_emitter.Emit( |
| ' bool isNull = false;\n' |
| ' $NATIVE_TYPE result = $FUNCTION_CALL;\n' |
| ' if (isNull)\n' |
| ' return;\n', |
| NATIVE_TYPE=return_type_info.native_type(), |
| FUNCTION_CALL=function_call) |
| value_expression = 'result' |
| else: |
| value_expression = function_call |
| |
| # Generate to Dart conversion of C++ value. |
| if return_type_info.dart_type() == 'bool': |
| set_return_value = 'Dart_SetBooleanReturnValue(args, %s)' % (value_expression) |
| elif return_type_info.dart_type() == 'int': |
| if return_type_info.native_type() == 'unsigned': |
| set_return_value = 'DartUtilities::setDartUnsignedReturnValue(args, %s)' % (value_expression) |
| elif return_type_info.native_type() == 'unsigned long long': |
| set_return_value = 'DartUtilities::setDartUnsignedLongLongReturnValue(args, %s)' % (value_expression) |
| else: |
| assert (return_type_info.native_type() == 'int' or return_type_info.native_type() == 'long long') |
| set_return_value = 'DartUtilities::setDartIntegerReturnValue(args, %s)' % (value_expression) |
| elif return_type_info.dart_type() == 'double': |
| set_return_value = 'Dart_SetDoubleReturnValue(args, %s)' % (value_expression) |
| elif return_type_info.dart_type() == 'String': |
| if ext_attrs and 'TreatReturnedNullStringAs' in ext_attrs: |
| set_return_value = 'DartUtilities::setDartStringReturnValueWithNullCheck(args, %s)' % (value_expression) |
| else: |
| set_return_value = 'DartUtilities::setDartStringReturnValue(args, %s)' % (value_expression) |
| elif return_type_info.dart_type() == 'num' and return_type_info.native_type() == 'double': |
| set_return_value = 'Dart_SetDoubleReturnValue(args, %s)' % (value_expression) |
| else: |
| return_to_dart_conversion = return_type_info.return_to_dart_conversion( |
| value_expression, |
| self._interface.id, |
| ext_attrs) |
| set_return_value = '%s' % (return_to_dart_conversion) |
| invocation_emitter.Emit( |
| ' $RETURN_VALUE;\n', |
| RETURN_VALUE=set_return_value) |
| |
| def _GenerateNativeBinding(self, idl_name, argument_count, dart_declaration, |
| native_suffix, is_custom, emit_metadata=True): |
| metadata = [] |
| if emit_metadata: |
| metadata = self._metadata.GetFormattedMetadata( |
| self._renamer.GetLibraryName(self._interface), |
| self._interface, idl_name, ' ') |
| |
| native_binding = '%s_%s_%s' % (self._interface.id, idl_name, native_suffix) |
| self._members_emitter.Emit( |
| '\n' |
| ' $METADATA$DART_DECLARATION native "$NATIVE_BINDING";\n', |
| DOMINTERFACE=self._interface.id, |
| METADATA=metadata, |
| DART_DECLARATION=dart_declaration, |
| NATIVE_BINDING=native_binding) |
| |
| cpp_callback_name = '%s%s' % (idl_name, native_suffix) |
| |
| self._cpp_resolver_emitter.Emit( |
| ' if (argumentCount == $ARGC && name == "$NATIVE_BINDING")\n' |
| ' return Dart$(INTERFACE_NAME)Internal::$CPP_CALLBACK_NAME;\n', |
| ARGC=argument_count, |
| NATIVE_BINDING=native_binding, |
| INTERFACE_NAME=self._interface.id, |
| CPP_CALLBACK_NAME=cpp_callback_name) |
| |
| if is_custom: |
| self._cpp_declarations_emitter.Emit( |
| '\n' |
| 'void $CPP_CALLBACK_NAME(Dart_NativeArguments);\n', |
| CPP_CALLBACK_NAME=cpp_callback_name) |
| |
| return cpp_callback_name |
| |
| def _GenerateWebCoreReflectionAttributeName(self, attr): |
| namespace = 'HTMLNames' |
| svg_exceptions = ['class', 'id', 'onabort', 'onclick', 'onerror', 'onload', |
| 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', |
| 'onmouseup', 'onresize', 'onscroll', 'onunload'] |
| if self._interface.id.startswith('SVG') and not attr.id in svg_exceptions: |
| namespace = 'SVGNames' |
| self._cpp_impl_includes.add('"%s.h"' % namespace) |
| |
| attribute_name = attr.ext_attrs['Reflect'] or attr.id.lower() |
| return 'WebCore::%s::%sAttr' % (namespace, attribute_name) |
| |
| def _GenerateWebCoreFunctionExpression(self, function_name, idl_node, cpp_callback_name=None): |
| if 'ImplementedBy' in idl_node.ext_attrs: |
| return '%s::%s' % (idl_node.ext_attrs['ImplementedBy'], function_name) |
| cpp_type_name = self._interface_type_info.native_type() |
| impl_type_name = _GetCPPTypeName(cpp_type_name, function_name, cpp_callback_name) |
| if idl_node.is_static: |
| return '%s::%s' % (impl_type_name, function_name) |
| if cpp_type_name == impl_type_name: |
| return '%s%s' % (self._interface_type_info.receiver(), function_name) |
| else: |
| return '%s::%s' % (impl_type_name, function_name) |
| |
| def _IsArgumentOptionalInWebCore(self, operation, argument): |
| if not IsOptional(argument): |
| return False |
| if 'Callback' in argument.ext_attrs: |
| return False |
| if operation.id in ['addEventListener', 'removeEventListener'] and argument.id == 'useCapture': |
| return False |
| if 'ForceOptional' in argument.ext_attrs: |
| return False |
| if argument.type.id == 'Dictionary': |
| return False |
| return True |
| |
| def _GenerateCPPIncludes(self, includes): |
| return ''.join(['#include %s\n' % include for include in sorted(includes)]) |
| |
| def _ToWebKitName(self, name): |
| name = name[0].lower() + name[1:] |
| name = re.sub(r'^(hTML|uRL|jS|xML|xSLT)', lambda s: s.group(1).lower(), |
| name) |
| return re.sub(r'^(create|exclusive)', |
| lambda s: 'is' + s.group(1).capitalize(), |
| name) |
| |
| class CPPLibraryEmitter(): |
| def __init__(self, emitters, cpp_sources_dir): |
| self._emitters = emitters |
| self._cpp_sources_dir = cpp_sources_dir |
| self._library_headers = dict((lib, []) for lib in HTML_LIBRARY_NAMES) |
| self._sources_list = [] |
| |
| def CreateHeaderEmitter(self, interface_name, library_name, is_callback=False): |
| path = os.path.join(self._cpp_sources_dir, 'Dart%s.h' % interface_name) |
| if not is_callback: |
| self._library_headers[library_name].append(path) |
| return self._emitters.FileEmitter(path) |
| |
| def CreateSourceEmitter(self, interface_name): |
| path = os.path.join(self._cpp_sources_dir, 'Dart%s.cpp' % interface_name) |
| self._sources_list.append(path) |
| return self._emitters.FileEmitter(path) |
| |
| def EmitDerivedSources(self, template, output_dir): |
| partitions = 20 # FIXME: this should be configurable. |
| sources_count = len(self._sources_list) |
| for i in range(0, partitions): |
| file_path = os.path.join(output_dir, 'DartDerivedSources%02i.cpp' % (i + 1)) |
| includes_emitter = self._emitters.FileEmitter(file_path).Emit(template) |
| for source_file in self._sources_list[i::partitions]: |
| path = os.path.relpath(source_file, output_dir) |
| includes_emitter.Emit('#include "$PATH"\n', PATH=path) |
| |
| def EmitResolver(self, template, output_dir): |
| for library_name in self._library_headers.keys(): |
| file_path = os.path.join(output_dir, '%s_DartResolver.cpp' % library_name) |
| includes_emitter, body_emitter = self._emitters.FileEmitter(file_path).Emit( |
| template, |
| LIBRARY_NAME=library_name) |
| |
| headers = self._library_headers[library_name] |
| for header_file in headers: |
| path = os.path.relpath(header_file, output_dir) |
| includes_emitter.Emit('#include "$PATH"\n', PATH=path) |
| body_emitter.Emit( |
| ' if (Dart_NativeFunction func = $CLASS_NAME::resolver(name, argumentCount))\n' |
| ' return func;\n', |
| CLASS_NAME=os.path.splitext(os.path.basename(path))[0]) |
| |
| def _IsOptionalStringArgumentInInitEventMethod(interface, operation, argument): |
| return ( |
| interface.id.endswith('Event') and |
| operation.id.startswith('init') and |
| argument.ext_attrs.get('Default') == 'Undefined' and |
| argument.type.id == 'DOMString') |
