vsm@google.com
ad353d440b
TBR=jacobr@google.com Review URL: https://codereview.chromium.org//150783005 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@32477 260f80e4-7a28-3924-810f-c04153c831b5
1412 lines
59 KiB
Python
1412 lines
59 KiB
Python
#!/usr/bin/python
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# Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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# for details. All rights reserved. Use of this source code is governed by a
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# BSD-style license that can be found in the LICENSE file.
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"""This module provides shared functionality for the systems to generate
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native binding from the IDL database."""
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import emitter
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import os
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from generator import *
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from htmldartgenerator import *
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from idlnode import IDLArgument, IDLAttribute
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from systemhtml import js_support_checks, GetCallbackInfo, HTML_LIBRARY_NAMES
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# TODO(vsm): This logic needs to pulled from the source IDL. These tables are
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# an ugly workaround.
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_cpp_callback_map = {
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('DataTransferItem', 'webkitGetAsEntry'): 'DataTransferItemFileSystem',
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('Document', 'fonts'): 'DocumentFontFaceSet',
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('Document', 'webkitIsFullScreen'): 'DocumentFullscreen',
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('Document', 'webkitFullScreenKeyboardInputAllowed'): 'DocumentFullscreen',
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('Document', 'webkitCurrentFullScreenElement'): 'DocumentFullscreen',
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('Document', 'webkitCancelFullScreen'): 'DocumentFullscreen',
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('Document', 'webkitFullscreenEnabled'): 'DocumentFullscreen',
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('Document', 'webkitFullscreenElement'): 'DocumentFullscreen',
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('Document', 'webkitExitFullscreen'): 'DocumentFullscreen',
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('DOMWindow', 'crypto'): 'DOMWindowCrypto',
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('DOMWindow', 'indexedDB'): 'DOMWindowIndexedDatabase',
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('DOMWindow', 'speechSynthesis'): 'DOMWindowSpeechSynthesis',
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('DOMWindow', 'webkitNotifications'): 'DOMWindowNotifications',
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('DOMWindow', 'storage'): 'DOMWindowQuota',
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('DOMWindow', 'webkitStorageInfo'): 'DOMWindowQuota',
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('DOMWindow', 'openDatabase'): 'DOMWindowWebDatabase',
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('DOMWindow', 'webkitRequestFileSystem'): 'DOMWindowFileSystem',
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('DOMWindow', 'webkitResolveLocalFileSystemURL'): 'DOMWindowFileSystem',
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('DOMWindow', 'atob'): 'DOMWindowBase64',
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('DOMWindow', 'btoa'): 'DOMWindowBase64',
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('DOMWindow', 'clearTimeout'): 'DOMWindowTimers',
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('DOMWindow', 'clearInterval'): 'DOMWindowTimers',
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('DOMWindow', 'createImageBitmap'): 'ImageBitmapFactories',
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('Element', 'animate'): 'ElementAnimation',
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('HTMLInputElement', 'webkitEntries'): 'HTMLInputElementFileSystem',
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('HTMLVideoElement', 'getVideoPlaybackQuality'): 'HTMLVideoElementMediaSource',
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('Navigator', 'doNotTrack'): 'NavigatorDoNotTrack',
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('Navigator', 'geolocation'): 'NavigatorGeolocation',
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('Navigator', 'webkitPersistentStorage'): 'NavigatorStorageQuota',
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('Navigator', 'webkitTemporaryStorage'): 'NavigatorStorageQuota',
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('Navigator', 'registerProtocolHandler'): 'NavigatorContentUtils',
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('Navigator', 'unregisterProtocolHandler'): 'NavigatorContentUtils',
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('Navigator', 'webkitGetUserMedia'): 'NavigatorMediaStream',
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('Navigator', 'webkitGetGamepads'): 'NavigatorGamepad',
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('Navigator', 'requestMIDIAccess'): 'NavigatorWebMIDI',
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('Navigator', 'vibrate'): 'NavigatorVibration',
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('Navigator', 'appName'): 'NavigatorID',
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('Navigator', 'appVersion'): 'NavigatorID',
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('Navigator', 'appCodeName'): 'NavigatorID',
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('Navigator', 'platform'): 'NavigatorID',
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('Navigator', 'product'): 'NavigatorID',
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('Navigator', 'userAgent'): 'NavigatorID',
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('Navigator', 'onLine'): 'NavigatorOnLine',
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('Navigator', 'registerServiceWorker'): 'NavigatorServiceWorker',
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('Navigator', 'unregisterServiceWorker'): 'NavigatorServiceWorker',
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('Navigator', 'maxTouchPoints'): 'NavigatorEvents',
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('WorkerGlobalScope', 'crypto'): 'WorkerGlobalScopeCrypto',
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('WorkerGlobalScope', 'indexedDB'): 'WorkerGlobalScopeIndexedDatabase',
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('WorkerGlobalScope', 'webkitNotifications'): 'WorkerGlobalScopeNotifications',
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('WorkerGlobalScope', 'openDatabase'): 'WorkerGlobalScopeWebDatabase',
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('WorkerGlobalScope', 'openDatabaseSync'): 'WorkerGlobalScopeWebDatabase',
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('WorkerGlobalScope', 'performance'): 'WorkerGlobalScopePerformance',
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('WorkerGlobalScope', 'webkitRequestFileSystem'): 'WorkerGlobalScopeFileSystem',
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('WorkerGlobalScope', 'webkitRequestFileSystemSync'): 'WorkerGlobalScopeFileSystem',
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('WorkerGlobalScope', 'webkitResolveLocalFileSystemURL'): 'WorkerGlobalScopeFileSystem',
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('WorkerGlobalScope', 'webkitResolveLocalFileSystemSyncURL'): 'WorkerGlobalScopeFileSystem',
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('WorkerGlobalScope', 'atob'): 'DOMWindowBase64',
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('WorkerGlobalScope', 'btoa'): 'DOMWindowBase64',
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('WorkerGlobalScope', 'clearTimeout'): 'DOMWindowTimers',
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('WorkerGlobalScope', 'clearInterval'): 'DOMWindowTimers',
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}
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_cpp_import_map = {
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'ImageBitmapFactories' : 'modules/imagebitmap/ImageBitmapFactories'
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}
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_cpp_overloaded_callback_map = {
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('DOMURL', 'createObjectUrlFromSourceCallback'): 'URLMediaSource',
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('DOMURL', 'createObjectUrlFromStreamCallback'): 'URLMediaStream',
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('DOMURL', '_createObjectUrlFromWebKitSourceCallback'): 'URLMediaSource',
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('DOMURL', '_createObjectURL_2Callback'): 'URLMediaSource',
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('DOMURL', '_createObjectURL_3Callback'): 'URLMediaSource',
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('DOMURL', '_createObjectURL_4Callback'): 'URLMediaStream',
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}
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_cpp_partial_map = {}
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_cpp_no_auto_scope_list = set([
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('Document', 'body', 'Getter'),
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('Document', 'getElementById', 'Callback'),
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('Document', 'getElementsByName', 'Callback'),
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('Document', 'getElementsByTagName', 'Callback'),
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('Element', 'getAttribute', 'Callback'),
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('Element', 'getAttributeNS', 'Callback'),
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('Element', 'id', 'Getter'),
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('Element', 'id', 'Setter'),
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('Element', 'setAttribute', 'Callback'),
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('Element', 'setAttributeNS', 'Callback'),
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('Node', 'firstChild', 'Getter'),
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('Node', 'lastChild', 'Getter'),
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('Node', 'nextSibling', 'Getter'),
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('Node', 'previousSibling', 'Getter'),
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('Node', 'childNodes', 'Getter'),
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('Node', 'nodeType', 'Getter'),
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('NodeList', 'length', 'Getter'),
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('NodeList', 'item', 'Callback'),
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])
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# TODO(vsm): This should be recoverable from IDL, but we appear to not
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# track the necessary info.
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_url_utils = ['hash', 'host', 'hostname', 'origin',
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'password', 'pathname', 'port', 'protocol',
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'search', 'username']
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_cpp_static_call_map = {
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'DOMURL': _url_utils + ['href', 'toString'],
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'HTMLAnchorElement': _url_utils,
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'HTMLAreaElement': _url_utils,
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}
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def _GetCPPPartialNames(interface):
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interface_name = interface.ext_attrs.get('ImplementedAs', interface.id)
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if not _cpp_partial_map:
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for (type, member) in _cpp_callback_map.keys():
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if type not in _cpp_partial_map:
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_cpp_partial_map[type] = set([])
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name_with_path = _cpp_callback_map[(type, member)]
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if name_with_path in _cpp_import_map:
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name_with_path = _cpp_import_map[name_with_path]
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_cpp_partial_map[type].add(name_with_path)
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for (type, member) in _cpp_overloaded_callback_map.keys():
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if type not in _cpp_partial_map:
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_cpp_partial_map[type] = set([])
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_cpp_partial_map[type].add(_cpp_overloaded_callback_map[(type, member)])
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if interface_name in _cpp_partial_map:
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return _cpp_partial_map[interface_name]
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else:
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return set([])
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def array_type(data_type):
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matched = re.match(r'([\w\d_\s]+)\[\]', data_type)
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if not matched:
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return None
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return matched.group(1)
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def _GetCPPTypeName(interface_name, callback_name, cpp_name):
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# TODO(vsm): We need to track the original IDL file name in order to recover
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# the proper CPP name.
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cpp_tuple = (interface_name, callback_name)
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if cpp_tuple in _cpp_callback_map:
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cpp_type_name = _cpp_callback_map[cpp_tuple]
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elif (interface_name, cpp_name) in _cpp_overloaded_callback_map:
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cpp_type_name = _cpp_overloaded_callback_map[(interface_name, cpp_name)]
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else:
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cpp_type_name = interface_name
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return cpp_type_name
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class DartiumBackend(HtmlDartGenerator):
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"""Generates Dart implementation for one DOM IDL interface."""
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def __init__(self, interface, cpp_library_emitter, options):
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super(DartiumBackend, self).__init__(interface, options)
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self._interface = interface
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self._cpp_library_emitter = cpp_library_emitter
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self._database = options.database
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self._template_loader = options.templates
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self._type_registry = options.type_registry
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self._interface_type_info = self._type_registry.TypeInfo(self._interface.id)
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self._metadata = options.metadata
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def ImplementsMergedMembers(self):
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# We could not add merged functions to implementation class because
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# underlying c++ object doesn't implement them. Merged functions are
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# generated on merged interface implementation instead.
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return False
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def CustomJSMembers(self):
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return {}
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def GenerateCallback(self, info):
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if IsPureInterface(self._interface.id) or IsCustomType(self._interface.id):
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return
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cpp_impl_includes = set(['"' + partial + '.h"'
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for partial in _GetCPPPartialNames(self._interface)])
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cpp_header_handlers_emitter = emitter.Emitter()
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cpp_impl_handlers_emitter = emitter.Emitter()
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class_name = 'Dart%s' % self._interface.id
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for operation in self._interface.operations:
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function_name = operation.id
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return_type = self.SecureOutputType(operation.type.id)
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parameters = []
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arguments = []
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if operation.ext_attrs.get('CallWith') == 'ThisValue':
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parameters.append('ScriptValue scriptValue')
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conversion_includes = []
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for argument in operation.arguments:
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argument_type_info = self._TypeInfo(argument.type.id)
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parameters.append('%s %s' % (argument_type_info.parameter_type(),
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argument.id))
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arguments.append(argument_type_info.to_dart_conversion(argument.id))
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conversion_includes.extend(argument_type_info.conversion_includes())
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# FIXME(vsm): Handle ThisValue attribute.
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if (return_type == 'void'):
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ret = ''
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else:
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ret = ' return 0;\n'
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if operation.ext_attrs.get('CallWith') == 'ThisValue':
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cpp_header_handlers_emitter.Emit(
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'\n'
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' virtual $RETURN_TYPE $FUNCTION($PARAMETERS) {\n'
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' DART_UNIMPLEMENTED();\n'
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'$RET'
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' }\n',
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RETURN_TYPE=return_type,
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RET=ret,
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FUNCTION=function_name,
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PARAMETERS=', '.join(parameters))
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continue
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cpp_header_handlers_emitter.Emit(
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'\n'
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' virtual $RETURN_TYPE $FUNCTION($PARAMETERS);\n',
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RETURN_TYPE=return_type,
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FUNCTION=function_name,
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PARAMETERS=', '.join(parameters))
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if 'Custom' in operation.ext_attrs:
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continue
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cpp_impl_includes |= set(conversion_includes)
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arguments_declaration = 'Dart_Handle arguments[] = { %s }' % ', '.join(arguments)
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if not len(arguments):
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arguments_declaration = 'Dart_Handle* arguments = 0'
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if (return_type == 'void'):
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ret1 = 'return'
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ret2 = ''
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else:
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ret1 = 'return 0'
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ret2 = ' return'
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cpp_impl_handlers_emitter.Emit(
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'\n'
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'$RETURN_TYPE $CLASS_NAME::$FUNCTION($PARAMETERS)\n'
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'{\n'
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' if (!m_callback.isIsolateAlive())\n'
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' $RET1;\n'
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' DartIsolateScope scope(m_callback.isolate());\n'
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' DartApiScope apiScope;\n'
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' $ARGUMENTS_DECLARATION;\n'
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' $RET2 m_callback.handleEvent($ARGUMENT_COUNT, arguments);\n'
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'}\n',
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RETURN_TYPE=return_type,
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RET1=ret1,
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RET2=ret2,
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CLASS_NAME=class_name,
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FUNCTION=function_name,
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PARAMETERS=', '.join(parameters),
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ARGUMENTS_DECLARATION=arguments_declaration,
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ARGUMENT_COUNT=len(arguments))
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cpp_header_emitter = self._cpp_library_emitter.CreateHeaderEmitter(
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self._interface.id,
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self._renamer.GetLibraryName(self._interface),
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True)
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cpp_header_emitter.Emit(
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self._template_loader.Load('cpp_callback_header.template'),
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INTERFACE=self._interface.id,
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HANDLERS=cpp_header_handlers_emitter.Fragments())
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cpp_impl_emitter = self._cpp_library_emitter.CreateSourceEmitter(self._interface.id)
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cpp_impl_emitter.Emit(
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self._template_loader.Load('cpp_callback_implementation.template'),
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INCLUDES=self._GenerateCPPIncludes(cpp_impl_includes),
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INTERFACE=self._interface.id,
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HANDLERS=cpp_impl_handlers_emitter.Fragments())
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def ImplementationTemplate(self):
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template = None
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interface_name = self._interface.doc_js_name
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if interface_name == self._interface.id or not self._database.HasInterface(interface_name):
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template_file = 'impl_%s.darttemplate' % interface_name
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template = self._template_loader.TryLoad(template_file)
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if not template:
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template = self._template_loader.Load('dart_implementation.darttemplate')
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return template
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def RootClassName(self):
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return 'NativeFieldWrapperClass2'
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def NativeSpec(self):
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return ''
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def StartInterface(self, members_emitter):
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# Create emitters for c++ implementation.
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if not IsPureInterface(self._interface.id) and not IsCustomType(self._interface.id):
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self._cpp_header_emitter = self._cpp_library_emitter.CreateHeaderEmitter(
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self._interface.id,
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self._renamer.GetLibraryName(self._interface))
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self._cpp_impl_emitter = self._cpp_library_emitter.CreateSourceEmitter(self._interface.id)
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else:
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self._cpp_header_emitter = emitter.Emitter()
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self._cpp_impl_emitter = emitter.Emitter()
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self._interface_type_info = self._TypeInfo(self._interface.id)
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self._members_emitter = members_emitter
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self._cpp_declarations_emitter = emitter.Emitter()
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self._cpp_impl_includes = set(['"' + partial + '.h"'
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for partial in _GetCPPPartialNames(self._interface)])
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self._cpp_definitions_emitter = emitter.Emitter()
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self._cpp_resolver_emitter = emitter.Emitter()
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# We need to revisit our treatment of typed arrays, right now
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# it is full of hacks.
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if self._interface.ext_attrs.get('ConstructorTemplate') == 'TypedArray':
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self._cpp_resolver_emitter.Emit(
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' if (name == "$(INTERFACE_NAME)_constructor_Callback")\n'
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' return Dart$(INTERFACE_NAME)Internal::constructorCallback;\n',
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INTERFACE_NAME=self._interface.id)
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self._cpp_impl_includes.add('"DartArrayBufferViewCustom.h"');
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self._cpp_definitions_emitter.Emit(
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'\n'
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'static void constructorCallback(Dart_NativeArguments args)\n'
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'{\n'
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' WebCore::DartArrayBufferViewInternal::constructWebGLArray<Dart$(INTERFACE_NAME)>(args);\n'
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'}\n',
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INTERFACE_NAME=self._interface.id);
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def _EmitConstructorInfrastructure(self,
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constructor_info, constructor_callback_cpp_name, factory_method_name,
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argument_count=None):
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constructor_callback_id = self._interface.id + '_' + constructor_callback_cpp_name
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if argument_count is None:
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argument_count = len(constructor_info.param_infos)
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self._members_emitter.Emit(
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'\n @DocsEditable()\n'
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' static $INTERFACE_NAME $FACTORY_METHOD_NAME($PARAMETERS) '
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'native "$ID";\n',
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INTERFACE_NAME=self._interface_type_info.interface_name(),
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FACTORY_METHOD_NAME=factory_method_name,
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# TODO: add types to parameters.
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PARAMETERS=constructor_info.ParametersAsArgumentList(argument_count),
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ID=constructor_callback_id)
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self._cpp_resolver_emitter.Emit(
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' if (name == "$ID")\n'
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' return Dart$(WEBKIT_INTERFACE_NAME)Internal::$CPP_CALLBACK;\n',
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ID=constructor_callback_id,
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WEBKIT_INTERFACE_NAME=self._interface.id,
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CPP_CALLBACK=constructor_callback_cpp_name)
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def GenerateCustomFactory(self, constructor_info):
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if 'CustomConstructor' not in self._interface.ext_attrs:
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return False
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annotations = self._metadata.GetFormattedMetadata(self._library_name,
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self._interface, self._interface.id, ' ')
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self._members_emitter.Emit(
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'\n $(ANNOTATIONS)factory $CTOR($PARAMS) => _create($FACTORY_PARAMS);\n',
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ANNOTATIONS=annotations,
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CTOR=constructor_info._ConstructorFullName(self._DartType),
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PARAMS=constructor_info.ParametersDeclaration(self._DartType),
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FACTORY_PARAMS= \
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constructor_info.ParametersAsArgumentList())
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constructor_callback_cpp_name = 'constructorCallback'
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self._EmitConstructorInfrastructure(
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constructor_info, constructor_callback_cpp_name, '_create')
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self._cpp_declarations_emitter.Emit(
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'\n'
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'void $CPP_CALLBACK(Dart_NativeArguments);\n',
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CPP_CALLBACK=constructor_callback_cpp_name)
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return True
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def IsConstructorArgumentOptional(self, argument):
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return False
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def EmitStaticFactoryOverload(self, constructor_info, name, arguments):
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constructor_callback_cpp_name = name + 'constructorCallback'
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self._EmitConstructorInfrastructure(
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constructor_info, constructor_callback_cpp_name, name, len(arguments))
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ext_attrs = self._interface.ext_attrs
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create_function = 'create'
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if 'NamedConstructor' in ext_attrs:
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create_function = 'createForJSConstructor'
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function_expression = '%s::%s' % (self._interface_type_info.native_type(), create_function)
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self._GenerateNativeCallback(
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constructor_callback_cpp_name,
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False,
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function_expression,
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self._interface,
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arguments,
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self._interface.id,
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False,
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'ConstructorRaisesException' in ext_attrs or 'RaisesException' in ext_attrs,
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True)
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def HasSupportCheck(self):
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# Need to omit a support check if it is conditional in JS.
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return self._interface.doc_js_name in js_support_checks
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def GetSupportCheck(self):
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# Assume that everything is supported on Dartium.
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value = js_support_checks.get(self._interface.doc_js_name)
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if type(value) == tuple:
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return (value[0], 'true')
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else:
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return 'true'
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def FinishInterface(self):
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self._GenerateCPPHeader()
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self._cpp_impl_emitter.Emit(
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self._template_loader.Load('cpp_implementation.template'),
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INTERFACE=self._interface.id,
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INCLUDES=self._GenerateCPPIncludes(self._cpp_impl_includes),
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CALLBACKS=self._cpp_definitions_emitter.Fragments(),
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RESOLVER=self._cpp_resolver_emitter.Fragments(),
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WEBCORE_CLASS_NAME=self._interface_type_info.native_type(),
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WEBCORE_CLASS_NAME_ESCAPED=
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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'
|
|
' DartDOMData* domData = DartDOMData::current();\n'
|
|
' return DartDOMWrapper::unwrapDartWrapper<Dart$INTERFACE>(domData, 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 $RETURN_TYPE toNativeWithNullCheck(Dart_NativeArguments args, int index, Dart_Handle& exception)\n'
|
|
' {\n'
|
|
' // toNative accounts for Null objects also.\n'
|
|
' return toNative(args, index, exception);\n'
|
|
' }\n',
|
|
RETURN_TYPE=return_type,
|
|
TO_NATIVE_BODY=to_native_body,
|
|
TO_NATIVE_ARG_BODY=to_native_arg_body,
|
|
INTERFACE=self._interface.id)
|
|
|
|
to_dart_emitter = emitter.Emitter()
|
|
|
|
ext_attrs = self._interface.ext_attrs
|
|
|
|
to_dart_emitter.Emit(
|
|
' static Dart_Handle toDart(NativeType* value)\n'
|
|
' {\n'
|
|
' if (!value)\n'
|
|
' return Dart_Null();\n'
|
|
' DartDOMData* domData = DartDOMData::current();\n'
|
|
' Dart_WeakPersistentHandle result =\n'
|
|
' DartDOMWrapper::lookupWrapper<Dart$(INTERFACE)>(domData, value);\n'
|
|
' if (result)\n'
|
|
' return Dart_HandleFromWeakPersistent(result);\n'
|
|
' return createWrapper(domData, value);\n'
|
|
' }\n'
|
|
' static void returnToDart(Dart_NativeArguments args,\n'
|
|
' NativeType* value,\n'
|
|
' bool autoDartScope = true)\n'
|
|
' {\n'
|
|
' if (value) {\n'
|
|
' DartDOMData* domData = static_cast<DartDOMData*>(\n'
|
|
' Dart_GetNativeIsolateData(args));\n'
|
|
' Dart_WeakPersistentHandle result =\n'
|
|
' DartDOMWrapper::lookupWrapper<Dart$(INTERFACE)>(domData, value);\n'
|
|
' if (result)\n'
|
|
' Dart_SetWeakHandleReturnValue(args, result);\n'
|
|
' else {\n'
|
|
' if (autoDartScope) {\n'
|
|
' Dart_SetReturnValue(args, createWrapper(domData, value));\n'
|
|
' } else {\n'
|
|
' DartApiScope apiScope;\n'
|
|
' Dart_SetReturnValue(args, createWrapper(domData, value));\n'
|
|
' }\n'
|
|
' }\n'
|
|
' }\n'
|
|
' }\n',
|
|
INTERFACE=self._interface.id)
|
|
|
|
if ('CustomToV8' in ext_attrs or
|
|
'PureInterface' in ext_attrs or
|
|
'CPPPureInterface' in ext_attrs or
|
|
'SpecialWrapFor' in ext_attrs or
|
|
('Custom' in ext_attrs and ext_attrs['Custom'] == 'Wrap') or
|
|
('Custom' in ext_attrs and ext_attrs['Custom'] == 'ToV8') or
|
|
self._interface_type_info.custom_to_dart()):
|
|
to_dart_emitter.Emit(
|
|
' static Dart_Handle createWrapper(DartDOMData* domData, NativeType* value);\n')
|
|
else:
|
|
to_dart_emitter.Emit(
|
|
' static Dart_Handle createWrapper(DartDOMData* domData, NativeType* value)\n'
|
|
' {\n'
|
|
' return DartDOMWrapper::createWrapper<Dart$(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 _GenerateAutoSetupScope(self, idl_name, native_suffix):
|
|
return (self._interface.id, idl_name, native_suffix) not in _cpp_no_auto_scope_list
|
|
|
|
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
|
|
native_suffix = 'Getter'
|
|
auto_scope_setup = self._GenerateAutoSetupScope(attr.id, native_suffix)
|
|
cpp_callback_name = self._GenerateNativeBinding(attr.id, 1,
|
|
dart_declaration, native_suffix, is_custom, auto_scope_setup)
|
|
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)
|
|
raises = ('RaisesException' in attr.ext_attrs and
|
|
attr.ext_attrs['RaisesException'] != 'Setter')
|
|
self._GenerateNativeCallback(
|
|
cpp_callback_name,
|
|
True,
|
|
function_expression,
|
|
attr,
|
|
[],
|
|
attr.type.id,
|
|
attr.type.nullable,
|
|
raises,
|
|
auto_scope_setup)
|
|
|
|
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)
|
|
native_suffix = 'Setter'
|
|
auto_scope_setup = self._GenerateAutoSetupScope(attr.id, native_suffix)
|
|
cpp_callback_name = self._GenerateNativeBinding(attr.id, 2,
|
|
dart_declaration, native_suffix, is_custom, auto_scope_setup)
|
|
if is_custom:
|
|
return
|
|
|
|
if 'Reflect' in attr.ext_attrs:
|
|
webcore_function_name = self._TypeInfo(attr.type.id).webcore_setter_name()
|
|
else:
|
|
if 'ImplementedAs' in attr.ext_attrs:
|
|
attr_name = attr.ext_attrs['ImplementedAs']
|
|
else:
|
|
attr_name = attr.id
|
|
webcore_function_name = re.sub(r'^(xml|css|(?=[A-Z])|\w)',
|
|
lambda s: s.group(1).upper(),
|
|
attr_name)
|
|
webcore_function_name = 'set%s' % webcore_function_name
|
|
|
|
function_expression = self._GenerateWebCoreFunctionExpression(webcore_function_name, attr)
|
|
raises = ('RaisesException' in attr.ext_attrs and
|
|
attr.ext_attrs['RaisesException'] != 'Getter')
|
|
self._GenerateNativeCallback(
|
|
cpp_callback_name,
|
|
True,
|
|
function_expression,
|
|
attr,
|
|
[attr],
|
|
'void',
|
|
False,
|
|
raises,
|
|
auto_scope_setup,
|
|
generate_custom_element_scope_if_needed=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, False)
|
|
|
|
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, False)
|
|
|
|
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)
|
|
native_suffix = 'Callback'
|
|
auto_scope_setup = self._GenerateAutoSetupScope(info.name, native_suffix)
|
|
cpp_callback_name = self._GenerateNativeBinding(
|
|
info.name, argument_count, dart_declaration, native_suffix, is_custom,
|
|
auto_scope_setup)
|
|
if not is_custom:
|
|
self._GenerateOperationNativeCallback(operation, operation.arguments, cpp_callback_name, auto_scope_setup)
|
|
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
|
|
native_suffix = 'Callback'
|
|
auto_scope_setup = self._GenerateAutoSetupScope(overload_name, native_suffix)
|
|
cpp_callback_name = self._GenerateNativeBinding(
|
|
overload_name, (0 if operation.is_static else 1) + argument_count,
|
|
dart_declaration, 'Callback', is_custom, auto_scope_setup,
|
|
emit_metadata=False)
|
|
if not is_custom:
|
|
self._GenerateOperationNativeCallback(operation, operation.arguments[:argument_count], cpp_callback_name, auto_scope_setup)
|
|
|
|
self._GenerateDispatcherBody(
|
|
info,
|
|
operations,
|
|
dart_declaration,
|
|
GenerateCall,
|
|
self._IsArgumentOptionalInWebCore)
|
|
|
|
def SecondaryContext(self, interface):
|
|
pass
|
|
|
|
def _GenerateOperationNativeCallback(self, operation, arguments, cpp_callback_name, auto_scope_setup=True):
|
|
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,
|
|
auto_scope_setup,
|
|
generate_custom_element_scope_if_needed=True)
|
|
|
|
def _GenerateNativeCallback(self,
|
|
callback_name,
|
|
needs_receiver,
|
|
function_expression,
|
|
node,
|
|
arguments,
|
|
return_type,
|
|
return_type_is_nullable,
|
|
raises_dom_exception,
|
|
auto_scope_setup=True,
|
|
generate_custom_element_scope_if_needed=False):
|
|
|
|
ext_attrs = node.ext_attrs
|
|
if self._IsStatic(node.id):
|
|
needs_receiver = True
|
|
|
|
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') == 'ExecutionContext' or
|
|
ext_attrs.get('ConstructorCallWith') == 'ExecutionContext')
|
|
|
|
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 generate_custom_element_scope_if_needed and (ext_attrs.get('CustomElementCallbacks', 'None') != 'None' or 'Reflect' in ext_attrs):
|
|
self._cpp_impl_includes.add('"core/dom/custom/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(
|
|
' ExecutionContext* 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 = DartUtilities::currentScriptState();\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"')
|
|
body_emitter.Emit(
|
|
'\n'
|
|
' ScriptState* currentState = DartUtilities::currentScriptState();\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',
|
|
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',
|
|
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:
|
|
if not auto_scope_setup and type_info.native_type() == 'String':
|
|
invocation_template =\
|
|
' $TYPE $ARGUMENT_NAME = $CLS::$FUNCTION(args, $INDEX, exception, false);\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 in ['DOMWindow', 'Element', 'Navigator', 'WorkerGlobalScope']:
|
|
cpp_arguments.insert(0, 'receiver')
|
|
else:
|
|
cpp_arguments.append('receiver')
|
|
elif self._IsStatic(node.id):
|
|
cpp_arguments.insert(0, '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.parameter_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':
|
|
auto_dart_scope='true' if auto_scope_setup else 'false'
|
|
if ext_attrs and 'TreatReturnedNullStringAs' in ext_attrs:
|
|
set_return_value = 'DartUtilities::setDartStringReturnValueWithNullCheck(args, %s, %s)' % (value_expression, auto_dart_scope)
|
|
else:
|
|
set_return_value = 'DartUtilities::setDartStringReturnValue(args, %s, %s)' % (value_expression, auto_dart_scope)
|
|
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,
|
|
auto_scope_setup,
|
|
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, auto_scope_setup=True, 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'
|
|
' *autoSetupScope = $AUTO_SCOPE_SETUP;\n'
|
|
' return Dart$(INTERFACE_NAME)Internal::$CPP_CALLBACK_NAME;\n'
|
|
' }\n',
|
|
ARGC=argument_count,
|
|
NATIVE_BINDING=native_binding,
|
|
INTERFACE_NAME=self._interface.id,
|
|
AUTO_SCOPE_SETUP='true' if auto_scope_setup else 'false',
|
|
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 _IsStatic(self, attribute_name):
|
|
cpp_type_name = self._interface_type_info.native_type()
|
|
if cpp_type_name in _cpp_static_call_map:
|
|
return attribute_name in _cpp_static_call_map[cpp_type_name]
|
|
return False
|
|
|
|
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 or self._IsStatic(idl_node.id):
|
|
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, autoSetupScope))\n'
|
|
' return func;\n',
|
|
CLASS_NAME=os.path.splitext(os.path.basename(path))[0])
|
|
|
|
def EmitClassIdTable(self, database, output_dir, type_registry, renamer):
|
|
path = os.path.join(output_dir, 'DartWebkitClassIds.h')
|
|
e = self._emitters.FileEmitter(path)
|
|
e.Emit('// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file\n');
|
|
e.Emit('// for details. All rights reserved. Use of this source code is governed by a\n');
|
|
e.Emit('// BSD-style license that can be found in the LICENSE file.\n');
|
|
e.Emit('// WARNING: Do not edit - generated code.\n');
|
|
e.Emit('// See dart/tools/dom/scripts/systemnative.py\n');
|
|
e.Emit('\n');
|
|
e.Emit('#ifndef DartWebkitClassIds_h\n');
|
|
e.Emit('#define DartWebkitClassIds_h\n');
|
|
e.Emit('\n');
|
|
e.Emit('namespace WebCore {\n');
|
|
e.Emit('\n');
|
|
e.Emit('enum {\n');
|
|
e.Emit(' _InvalidClassId = 0,\n');
|
|
e.Emit(' _HistoryCrossFrameClassId,\n');
|
|
e.Emit(' _LocationCrossFrameClassId,\n');
|
|
e.Emit(' _DOMWindowCrossFrameClassId,\n');
|
|
e.Emit(' _DateTimeClassId,\n');
|
|
e.Emit(' _JsObjectClassId,\n');
|
|
e.Emit(' _JsFunctionClassId,\n');
|
|
e.Emit(' _JsArrayClassId,\n');
|
|
e.Emit(' // New types that are not auto-generated should be added here.\n');
|
|
e.Emit('\n');
|
|
for interface in database.GetInterfaces():
|
|
interface_name = interface.id
|
|
e.Emit(' %sClassId,\n' % interface_name)
|
|
e.Emit(' NumWebkitClassIds\n');
|
|
e.Emit('};\n');
|
|
|
|
e.Emit('typedef struct {\n');
|
|
e.Emit(' const char* class_name;\n');
|
|
e.Emit(' int library_id;\n');
|
|
e.Emit(' int base_class_id;\n');
|
|
e.Emit(' bool is_node;\n');
|
|
e.Emit(' bool is_active;\n');
|
|
e.Emit(' bool is_event;\n');
|
|
e.Emit('} _Classinfo;\n');
|
|
e.Emit('typedef _Classinfo _DartWebkitClassInfo[NumWebkitClassIds];\n');
|
|
e.Emit('\n');
|
|
e.Emit('extern _DartWebkitClassInfo DartWebkitClassInfo;\n');
|
|
e.Emit('\n');
|
|
e.Emit('} // namespace WebCore\n');
|
|
e.Emit('#endif // DartWebkitClassIds_h\n');
|
|
|
|
path = os.path.join(output_dir, 'DartWebkitClassIds.cpp')
|
|
e = self._emitters.FileEmitter(path)
|
|
e.Emit('// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file\n');
|
|
e.Emit('// for details. All rights reserved. Use of this source code is governed by a\n');
|
|
e.Emit('// BSD-style license that can be found in the LICENSE file.\n');
|
|
e.Emit('// WARNING: Do not edit - generated code.\n');
|
|
e.Emit('// See dart/tools/dom/scripts/systemnative.py\n');
|
|
e.Emit('\n');
|
|
e.Emit('#include "DartWebkitClassIds.h"\n');
|
|
e.Emit('\n');
|
|
e.Emit('#include "bindings/dart/DartLibraryIds.h"\n');
|
|
e.Emit('\n');
|
|
e.Emit('namespace WebCore {\n');
|
|
e.Emit('\n');
|
|
e.Emit("_DartWebkitClassInfo DartWebkitClassInfo = {\n");
|
|
e.Emit(' { "_InvalidClassId", -1, -1, false, false, false },\n');
|
|
e.Emit(' { "_HistoryCrossFrame", DartHtmlLibraryId, -1, false, false, false },\n');
|
|
e.Emit(' { "_LocationCrossFrame", DartHtmlLibraryId, -1, false, false, false },\n');
|
|
e.Emit(' { "_DOMWindowCrossFrame", DartHtmlLibraryId, -1, false, false, true },\n');
|
|
e.Emit(' { "DateTime", DartCoreLibraryId, -1, false, false, false },\n');
|
|
e.Emit(' { "JsObject", DartJsLibraryId, -1, false, false, false },\n');
|
|
e.Emit(' { "JsFunction", DartJsLibraryId, _JsObjectClassId, false, false, false },\n');
|
|
e.Emit(' { "JsArray", DartJsLibraryId, _JsObjectClassId, false, false, false },\n');
|
|
e.Emit(' // New types that are not auto-generated should be added here.\n');
|
|
e.Emit('\n');
|
|
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, database.Hierarchy(interface))) else 'false'
|
|
for interface in database.GetInterfaces():
|
|
e.Emit(" {")
|
|
type_info = type_registry.TypeInfo(interface.id)
|
|
type_info.native_type().replace('<', '_').replace('>', '_'),
|
|
e.Emit(' "%s",' % type_info.implementation_name())
|
|
e.Emit(' Dart%sLibraryId,' % renamer.GetLibraryId(interface))
|
|
if interface.parents:
|
|
supertype = interface.parents[0].type.id
|
|
e.Emit(' %sClassId,\n' % supertype)
|
|
else:
|
|
e.Emit(' -1,')
|
|
e.Emit(" %s," % TypeCheckHelper(is_node_test))
|
|
e.Emit(" %s," % TypeCheckHelper(is_active_test))
|
|
e.Emit(" %s," % TypeCheckHelper(is_event_target_test))
|
|
e.Emit(" },\n")
|
|
e.Emit("};\n");
|
|
e.Emit('\n');
|
|
e.Emit('} // namespace WebCore\n');
|
|
|
|
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')
|