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Unified Diff: bindings/dart/scripts/dart_interface.py

Issue 540533002: Roll IDL to Dartium37 (r181268) (Closed) Base URL: https://dart.googlecode.com/svn/third_party/WebCore
Patch Set: Created 6 years, 3 months ago
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Index: bindings/dart/scripts/dart_interface.py
diff --git a/bindings/dart/scripts/dart_interface.py b/bindings/dart/scripts/dart_interface.py
new file mode 100644
index 0000000000000000000000000000000000000000..540c3acebc704585631e82432a44c221b015924a
--- /dev/null
+++ b/bindings/dart/scripts/dart_interface.py
@@ -0,0 +1,1151 @@
+# Copyright (C) 2013 Google Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Generate template values for an interface.
+
+Design doc: http://www.chromium.org/developers/design-documents/idl-compiler
+"""
+
+from collections import defaultdict
+
+import idl_types
+from idl_types import IdlType, inherits_interface
+import dart_attributes
+import dart_methods
+import dart_types
+from dart_utilities import DartUtilities
+from v8_globals import includes
+
+
+INTERFACE_H_INCLUDES = frozenset([
+ 'bindings/dart/DartDOMWrapper.h',
+ 'platform/heap/Handle.h',
+])
+
+INTERFACE_CPP_INCLUDES = frozenset([
+ 'DartUtilities.h',
+ 'wtf/GetPtr.h',
+ 'wtf/RefPtr.h',
+])
+
+
+# TODO(terry): Temporary to not generate a method, getter/setter. Format is:
+#
+# interface_name.method_name
+# interface_name.get:attribute_name
+# interface_name.set:attribute_name
+#
+# Ultimate solution add a special attribute flag to IDL to signal
+# don't generate IDL entry in Dart (e.g., DartNoGenerate)?
+IGNORE_MEMBERS = frozenset([
+ 'AudioBufferSourceNode.looping', # TODO(vsm): Use deprecated IDL annotation
+ 'CSSStyleDeclaration.getPropertyCSSValue',
+ 'CanvasRenderingContext2D.clearShadow',
+ 'CanvasRenderingContext2D.drawImageFromRect',
+ 'CanvasRenderingContext2D.setAlpha',
+ 'CanvasRenderingContext2D.setCompositeOperation',
+ 'CanvasRenderingContext2D.setFillColor',
+ 'CanvasRenderingContext2D.setLineCap',
+ 'CanvasRenderingContext2D.setLineJoin',
+ 'CanvasRenderingContext2D.setLineWidth',
+ 'CanvasRenderingContext2D.setMiterLimit',
+ 'CanvasRenderingContext2D.setShadow',
+ 'CanvasRenderingContext2D.setStrokeColor',
+ 'CharacterData.remove',
+ 'Window.call:blur',
+ 'Window.call:focus',
+ 'Window.clientInformation',
+ 'Window.createImageBitmap',
+ 'Window.get:frames',
+ 'Window.get:length',
+ 'Window.on:beforeUnload',
+ 'Window.on:webkitTransitionEnd',
+ 'Window.pagePopupController',
+ 'Window.prompt',
+ 'Window.webkitCancelAnimationFrame',
+ 'Window.webkitCancelRequestAnimationFrame',
+ 'Window.webkitIndexedDB',
+ 'Window.webkitRequestAnimationFrame',
+ 'Document.alinkColor',
+ 'HTMLDocument.all',
+ 'Document.applets',
+ 'Document.bgColor',
+ 'Document.clear',
+ 'Document.createAttribute',
+ 'Document.createAttributeNS',
+ 'Document.createComment',
+ 'Document.createExpression',
+ 'Document.createNSResolver',
+ 'Document.createProcessingInstruction',
+ 'Document.designMode',
+ 'Document.dir',
+ 'Document.evaluate',
+ 'Document.fgColor',
+ 'Document.get:URL',
+ 'Document.get:anchors',
+ 'Document.get:characterSet',
+ 'Document.get:compatMode',
+ 'Document.get:defaultCharset',
+ 'Document.get:doctype',
+ 'Document.get:documentURI',
+ 'Document.get:embeds',
+ 'Document.get:forms',
+ 'Document.get:inputEncoding',
+ 'Document.get:links',
+ 'Document.get:plugins',
+ 'Document.get:scripts',
+ 'Document.get:xmlEncoding',
+ 'Document.getElementsByTagNameNS',
+ 'Document.getOverrideStyle',
+ 'Document.getSelection',
+ 'Document.images',
+ 'Document.linkColor',
+ 'Document.location',
+ 'Document.on:wheel',
+ 'Document.open',
+ 'Document.register',
+ 'Document.set:domain',
+ 'Document.vlinkColor',
+ 'Document.webkitCurrentFullScreenElement',
+ 'Document.webkitFullScreenKeyboardInputAllowed',
+ 'Document.write',
+ 'Document.writeln',
+ 'Document.xmlStandalone',
+ 'Document.xmlVersion',
+ 'DocumentFragment.children',
+ 'DocumentType.*',
+ 'DOMException.code',
+ 'DOMException.ABORT_ERR',
+ 'DOMException.DATA_CLONE_ERR',
+ 'DOMException.DOMSTRING_SIZE_ERR',
+ 'DOMException.HIERARCHY_REQUEST_ERR',
+ 'DOMException.INDEX_SIZE_ERR',
+ 'DOMException.INUSE_ATTRIBUTE_ERR',
+ 'DOMException.INVALID_ACCESS_ERR',
+ 'DOMException.INVALID_CHARACTER_ERR',
+ 'DOMException.INVALID_MODIFICATION_ERR',
+ 'DOMException.INVALID_NODE_TYPE_ERR',
+ 'DOMException.INVALID_STATE_ERR',
+ 'DOMException.NAMESPACE_ERR',
+ 'DOMException.NETWORK_ERR',
+ 'DOMException.NOT_FOUND_ERR',
+ 'DOMException.NOT_SUPPORTED_ERR',
+ 'DOMException.NO_DATA_ALLOWED_ERR',
+ 'DOMException.NO_MODIFICATION_ALLOWED_ERR',
+ 'DOMException.QUOTA_EXCEEDED_ERR',
+ 'DOMException.SECURITY_ERR',
+ 'DOMException.SYNTAX_ERR',
+ 'DOMException.TIMEOUT_ERR',
+ 'DOMException.TYPE_MISMATCH_ERR',
+ 'DOMException.URL_MISMATCH_ERR',
+ 'DOMException.VALIDATION_ERR',
+ 'DOMException.WRONG_DOCUMENT_ERR',
+ 'Element.accessKey',
+ 'Element.dataset',
+ 'Element.get:classList',
+ 'Element.getAttributeNode',
+ 'Element.getAttributeNodeNS',
+ 'Element.getElementsByTagNameNS',
+ 'Element.innerText',
+ 'Element.on:wheel',
+ 'Element.outerText',
+ 'Element.removeAttributeNode',
+ 'Element.set:outerHTML',
+ 'Element.setAttributeNode',
+ 'Element.setAttributeNodeNS',
+ 'Element.webkitCreateShadowRoot',
+ 'Element.webkitMatchesSelector',
+ 'Element.webkitPseudo',
+ 'Element.webkitShadowRoot',
+ '=Event.returnValue', # Only suppress on Event, allow for BeforeUnloadEvent.
+ 'Event.srcElement',
+ 'EventSource.URL',
+ 'FontFace.ready',
+ 'FontFaceSet.load',
+ 'FontFaceSet.ready',
+ 'HTMLAnchorElement.charset',
+ 'HTMLAnchorElement.coords',
+ 'HTMLAnchorElement.rev',
+ 'HTMLAnchorElement.shape',
+ 'HTMLAnchorElement.text',
+ 'HTMLAppletElement.*',
+ 'HTMLAreaElement.noHref',
+ 'HTMLBRElement.clear',
+ 'HTMLBaseFontElement.*',
+ 'HTMLBodyElement.aLink',
+ 'HTMLBodyElement.background',
+ 'HTMLBodyElement.bgColor',
+ 'HTMLBodyElement.link',
+ 'HTMLBodyElement.on:beforeUnload',
+ 'HTMLBodyElement.text',
+ 'HTMLBodyElement.vLink',
+ 'HTMLDListElement.compact',
+ 'HTMLDirectoryElement.*',
+ 'HTMLDivElement.align',
+ 'HTMLFontElement.*',
+ 'HTMLFormControlsCollection.__getter__',
+ 'HTMLFormElement.get:elements',
+ 'HTMLFrameElement.*',
+ 'HTMLFrameSetElement.*',
+ 'HTMLHRElement.align',
+ 'HTMLHRElement.noShade',
+ 'HTMLHRElement.size',
+ 'HTMLHRElement.width',
+ 'HTMLHeadElement.profile',
+ 'HTMLHeadingElement.align',
+ 'HTMLHtmlElement.manifest',
+ 'HTMLHtmlElement.version',
+ 'HTMLIFrameElement.align',
+ 'HTMLIFrameElement.frameBorder',
+ 'HTMLIFrameElement.longDesc',
+ 'HTMLIFrameElement.marginHeight',
+ 'HTMLIFrameElement.marginWidth',
+ 'HTMLIFrameElement.scrolling',
+ 'HTMLImageElement.align',
+ 'HTMLImageElement.hspace',
+ 'HTMLImageElement.longDesc',
+ 'HTMLImageElement.name',
+ 'HTMLImageElement.vspace',
+ 'HTMLInputElement.align',
+ 'HTMLLegendElement.align',
+ 'HTMLLinkElement.charset',
+ 'HTMLLinkElement.rev',
+ 'HTMLLinkElement.target',
+ 'HTMLMarqueeElement.*',
+ 'HTMLMenuElement.compact',
+ 'HTMLMetaElement.scheme',
+ 'HTMLOListElement.compact',
+ 'HTMLObjectElement.align',
+ 'HTMLObjectElement.archive',
+ 'HTMLObjectElement.border',
+ 'HTMLObjectElement.codeBase',
+ 'HTMLObjectElement.codeType',
+ 'HTMLObjectElement.declare',
+ 'HTMLObjectElement.hspace',
+ 'HTMLObjectElement.standby',
+ 'HTMLObjectElement.vspace',
+ 'HTMLOptionElement.text',
+ 'HTMLOptionsCollection.*',
+ 'HTMLParagraphElement.align',
+ 'HTMLParamElement.type',
+ 'HTMLParamElement.valueType',
+ 'HTMLPreElement.width',
+ 'HTMLScriptElement.text',
+ 'HTMLSelectElement.options',
+ 'HTMLSelectElement.selectedOptions',
+ 'HTMLTableCaptionElement.align',
+ 'HTMLTableCellElement.abbr',
+ 'HTMLTableCellElement.align',
+ 'HTMLTableCellElement.axis',
+ 'HTMLTableCellElement.bgColor',
+ 'HTMLTableCellElement.ch',
+ 'HTMLTableCellElement.chOff',
+ 'HTMLTableCellElement.height',
+ 'HTMLTableCellElement.noWrap',
+ 'HTMLTableCellElement.scope',
+ 'HTMLTableCellElement.vAlign',
+ 'HTMLTableCellElement.width',
+ 'HTMLTableColElement.align',
+ 'HTMLTableColElement.ch',
+ 'HTMLTableColElement.chOff',
+ 'HTMLTableColElement.vAlign',
+ 'HTMLTableColElement.width',
+ 'HTMLTableElement.align',
+ 'HTMLTableElement.bgColor',
+ 'HTMLTableElement.cellPadding',
+ 'HTMLTableElement.cellSpacing',
+ 'HTMLTableElement.frame',
+ 'HTMLTableElement.rules',
+ 'HTMLTableElement.summary',
+ 'HTMLTableElement.width',
+ 'HTMLTableRowElement.align',
+ 'HTMLTableRowElement.bgColor',
+ 'HTMLTableRowElement.ch',
+ 'HTMLTableRowElement.chOff',
+ 'HTMLTableRowElement.vAlign',
+ 'HTMLTableSectionElement.align',
+ 'HTMLTableSectionElement.ch',
+ 'HTMLTableSectionElement.chOff',
+ 'HTMLTableSectionElement.vAlign',
+ 'HTMLTitleElement.text',
+ 'HTMLUListElement.compact',
+ 'HTMLUListElement.type',
+ 'Location.valueOf',
+ 'MessageEvent.ports',
+ 'MessageEvent.webkitInitMessageEvent',
+ 'MouseEvent.x',
+ 'MouseEvent.y',
+ 'Navigator.registerServiceWorker',
+ 'Navigator.unregisterServiceWorker',
+ 'Node.compareDocumentPosition',
+ 'Node.get:DOCUMENT_POSITION_CONTAINED_BY',
+ 'Node.get:DOCUMENT_POSITION_CONTAINS',
+ 'Node.get:DOCUMENT_POSITION_DISCONNECTED',
+ 'Node.get:DOCUMENT_POSITION_FOLLOWING',
+ 'Node.get:DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC',
+ 'Node.get:DOCUMENT_POSITION_PRECEDING',
+ 'Node.get:prefix',
+ 'Node.hasAttributes',
+ 'Node.isDefaultNamespace',
+ 'Node.isEqualNode',
+ 'Node.isSameNode',
+ 'Node.isSupported',
+ 'Node.lookupNamespaceURI',
+ 'Node.lookupPrefix',
+ 'Node.normalize',
+ 'Node.set:nodeValue',
+ 'NodeFilter.acceptNode',
+ 'NodeIterator.expandEntityReferences',
+ 'NodeIterator.filter',
+ 'Performance.webkitClearMarks',
+ 'Performance.webkitClearMeasures',
+ 'Performance.webkitGetEntries',
+ 'Performance.webkitGetEntriesByName',
+ 'Performance.webkitGetEntriesByType',
+ 'Performance.webkitMark',
+ 'Performance.webkitMeasure',
+ 'ShadowRoot.getElementsByTagNameNS',
+ 'SVGElement.getPresentationAttribute',
+ 'SVGElementInstance.on:wheel',
+ 'WheelEvent.wheelDelta',
+ 'Window.on:wheel',
+ 'WindowEventHandlers.on:beforeUnload',
+ 'WorkerGlobalScope.webkitIndexedDB',
+# TODO(jacobr): should these be removed?
+ 'Document.close',
+ 'Document.hasFocus',
+])
+
+
+def _suppress_method(interface_name, name):
+ name_to_find = '%s.%s' % (interface_name, name)
+ wildcard_name_to_find = '%s.*' % interface_name
+ return name_to_find in IGNORE_MEMBERS or wildcard_name_to_find in IGNORE_MEMBERS
+
+
+# Both getter and setter are to be suppressed then the attribute is completely
+# disappear.
+def _suppress_attribute(interface_name, name):
+ return (suppress_getter(interface_name, name) and suppress_setter(interface_name, name))
+
+
+def suppress_getter(interface_name, name):
+ name_to_find = '%s.get:%s' % (interface_name, name)
+ wildcard_getter_to_find = '%s.get:*' % interface_name
+ return (name_to_find in IGNORE_MEMBERS or
+ _suppress_method(interface_name, name) or
+ wildcard_getter_to_find in IGNORE_MEMBERS)
+
+
+def suppress_setter(interface_name, name):
+ name_to_find = '%s.set:%s' % (interface_name, name)
+ wildcard_setter_to_find = '%s.set:*' % interface_name
+ return (name_to_find in IGNORE_MEMBERS or
+ _suppress_method(interface_name, name) or
+ wildcard_setter_to_find in IGNORE_MEMBERS)
+
+
+# To suppress an IDL method or attribute with a particular Extended Attribute
+# w/o a value e.g, StrictTypeChecking would be an empty set
+# 'StrictTypeChecking': frozenset([]),
+IGNORE_EXTENDED_ATTRIBUTES = {
+# 'RuntimeEnabled': frozenset(['ExperimentalCanvasFeatures']),
+}
+
+
+# Return True if the method / attribute should be suppressed.
+def _suppress_extended_attributes(extended_attributes):
+ if 'DartSuppress' in extended_attributes and extended_attributes.get('DartSuppress') == None:
+ return True
+
+ # TODO(terry): Eliminate this using DartSuppress extended attribute in the
+ # IDL files instead of the IGNORE_EXTENDED_ATTRIBUTES list.
+ for extended_attribute_name in extended_attributes:
+ ignore_extended_values = IGNORE_EXTENDED_ATTRIBUTES.get(extended_attribute_name)
+ if ignore_extended_values != None:
+ extended_attribute_value = extended_attributes.get(extended_attribute_name)
+ if ((not ignore_extended_values and extended_attribute_value == None) or
+ extended_attribute_value in ignore_extended_values):
+ return True
+ return False
+
+
+def generate_interface(interface):
+ includes.clear()
+ includes.update(INTERFACE_CPP_INCLUDES)
+ header_includes = set(INTERFACE_H_INCLUDES)
+
+ parent_interface = interface.parent
+ if parent_interface:
+ header_includes.update(dart_types.includes_for_interface(parent_interface))
+ extended_attributes = interface.extended_attributes
+
+ is_audio_buffer = inherits_interface(interface.name, 'AudioBuffer')
+ if is_audio_buffer:
+ includes.add('modules/webaudio/AudioBuffer.h')
+
+ is_document = inherits_interface(interface.name, 'Document')
+ if is_document:
+ # FIXME(vsm): We probably need bindings/dart/DartController and
+ # core/frame/LocalFrame.h here.
+ includes.update(['DartDocument.h'])
+
+ if inherits_interface(interface.name, 'DataTransferItemList'):
+ # FIXME(jacobr): this is a hack.
+ includes.update(['core/html/HTMLCollection.h'])
+
+
+ if inherits_interface(interface.name, 'EventTarget'):
+ includes.update(['DartEventListener.h'])
+
+ # [ActiveDOMObject]
+ is_active_dom_object = 'ActiveDOMObject' in extended_attributes
+
+ # [CheckSecurity]
+ is_check_security = 'CheckSecurity' in extended_attributes
+ if is_check_security:
+ includes.add('bindings/common/BindingSecurity.h')
+
+ # [DependentLifetime]
+ is_dependent_lifetime = 'DependentLifetime' in extended_attributes
+
+ # [MeasureAs]
+# TODO(terry): Remove Me?
+# is_measure_as = 'MeasureAs' in extended_attributes
+# if is_measure_as:
+# includes.add('core/frame/UseCounter.h')
+
+ # [SetWrapperReferenceFrom]
+ reachable_node_function = extended_attributes.get('SetWrapperReferenceFrom')
+ if reachable_node_function:
+ # FIXME(vsm): We may need bindings/dart/DartGCController.h instead.
+ includes.update(['bindings/v8/V8GCController.h',
+ 'core/dom/Element.h'])
+
+ # [SetWrapperReferenceTo]
+ set_wrapper_reference_to_list = [{
+ 'name': argument.name,
+ # FIXME: properly should be:
+ # 'cpp_type': argument.idl_type.cpp_type_args(used_as_argument=True),
+ # (if type is non-wrapper type like NodeFilter, normally RefPtr)
+ # Raw pointers faster though, and NodeFilter hacky anyway.
+ 'cpp_type': argument.idl_type.implemented_as + '*',
+ 'idl_type': argument.idl_type,
+ 'v8_type': dart_types.v8_type(argument.idl_type.name),
+ } for argument in extended_attributes.get('SetWrapperReferenceTo', [])]
+ for set_wrapper_reference_to in set_wrapper_reference_to_list:
+ set_wrapper_reference_to['idl_type'].add_includes_for_type()
+
+ # [SpecialWrapFor]
+ if 'SpecialWrapFor' in extended_attributes:
+ special_wrap_for = extended_attributes['SpecialWrapFor'].split('|')
+ else:
+ special_wrap_for = []
+ for special_wrap_interface in special_wrap_for:
+ dart_types.add_includes_for_interface(special_wrap_interface)
+
+ # [Custom=Wrap], [SetWrapperReferenceFrom]
+ has_visit_dom_wrapper = (
+ DartUtilities.has_extended_attribute_value(interface, 'Custom', 'VisitDOMWrapper') or
+ reachable_node_function or
+ set_wrapper_reference_to_list)
+
+ this_gc_type = DartUtilities.gc_type(interface)
+
+ template_contents = {
+ 'conditional_string': DartUtilities.conditional_string(interface), # [Conditional]
+ 'cpp_class': DartUtilities.cpp_name(interface),
+ 'gc_type': this_gc_type,
+ 'has_custom_legacy_call_as_function': DartUtilities.has_extended_attribute_value(interface, 'Custom', 'LegacyCallAsFunction'), # [Custom=LegacyCallAsFunction]
+ 'has_custom_to_v8': DartUtilities.has_extended_attribute_value(interface, 'Custom', 'ToV8'), # [Custom=ToV8]
+ 'has_custom_wrap': DartUtilities.has_extended_attribute_value(interface, 'Custom', 'Wrap'), # [Custom=Wrap]
+ 'has_visit_dom_wrapper': has_visit_dom_wrapper,
+ 'header_includes': header_includes,
+ 'interface_name': interface.name,
+ 'is_active_dom_object': is_active_dom_object,
+ 'is_audio_buffer': is_audio_buffer,
+ 'is_check_security': is_check_security,
+ 'is_dependent_lifetime': is_dependent_lifetime,
+ 'is_document': is_document,
+ 'is_event_target': inherits_interface(interface.name, 'EventTarget'),
+ 'is_exception': interface.is_exception,
+ 'is_garbage_collected': this_gc_type == 'GarbageCollectedObject',
+ 'is_will_be_garbage_collected': this_gc_type == 'WillBeGarbageCollectedObject',
+ 'is_node': inherits_interface(interface.name, 'Node'),
+ 'measure_as': DartUtilities.measure_as(interface), # [MeasureAs]
+ 'parent_interface': parent_interface,
+ 'pass_cpp_type': dart_types.cpp_template_type(
+ dart_types.cpp_ptr_type('PassRefPtr', 'RawPtr', this_gc_type),
+ DartUtilities.cpp_name(interface)),
+ 'reachable_node_function': reachable_node_function,
+ 'runtime_enabled_function': DartUtilities.runtime_enabled_function_name(interface), # [RuntimeEnabled]
+ 'set_wrapper_reference_to_list': set_wrapper_reference_to_list,
+ 'special_wrap_for': special_wrap_for,
+ 'dart_class': dart_types.dart_type(interface.name),
+ 'v8_class': DartUtilities.v8_class_name(interface),
+ 'wrapper_configuration': 'WrapperConfiguration::Dependent'
+ if (has_visit_dom_wrapper or
+ is_active_dom_object or
+ is_dependent_lifetime)
+ else 'WrapperConfiguration::Independent',
+ }
+
+ # Constructors
+ constructors = [generate_constructor(interface, constructor)
+ for constructor in interface.constructors
+ # FIXME: shouldn't put named constructors with constructors
+ # (currently needed for Perl compatibility)
+ # Handle named constructors separately
+ if constructor.name == 'Constructor']
+ generate_constructor_overloads(constructors)
+
+ # [CustomConstructor]
+ custom_constructors = [generate_custom_constructor(interface, constructor)
+ for constructor in interface.custom_constructors]
+
+ # [EventConstructor]
+ has_event_constructor = 'EventConstructor' in extended_attributes
+ any_type_attributes = [attribute for attribute in interface.attributes
+ if attribute.idl_type.name == 'Any']
+ if has_event_constructor:
+ includes.add('bindings/common/Dictionary.h')
+ if any_type_attributes:
+ includes.add('bindings/v8/SerializedScriptValue.h')
+
+ # [NamedConstructor]
+ named_constructor = generate_named_constructor(interface)
+
+ if (constructors or custom_constructors or has_event_constructor or
+ named_constructor):
+ includes.add('core/frame/LocalDOMWindow.h')
+
+ template_contents.update({
+ 'any_type_attributes': any_type_attributes,
+ 'constructors': constructors,
+ 'custom_constructors': custom_constructors,
+ 'has_custom_constructor': bool(custom_constructors),
+ 'has_event_constructor': has_event_constructor,
+ 'interface_length':
+ interface_length(interface, constructors + custom_constructors),
+ 'is_constructor_call_with_document': DartUtilities.has_extended_attribute_value(
+ interface, 'ConstructorCallWith', 'Document'), # [ConstructorCallWith=Document]
+ 'is_constructor_call_with_execution_context': DartUtilities.has_extended_attribute_value(
+ interface, 'ConstructorCallWith', 'ExecutionContext'), # [ConstructorCallWith=ExeuctionContext]
+ 'is_constructor_raises_exception': extended_attributes.get('RaisesException') == 'Constructor', # [RaisesException=Constructor]
+ 'named_constructor': named_constructor,
+ })
+
+ # Constants
+ template_contents.update({
+ 'constants': [generate_constant(constant) for constant in interface.constants],
+ 'do_not_check_constants': 'DoNotCheckConstants' in extended_attributes,
+ })
+
+ # Attributes
+ attributes = [dart_attributes.generate_attribute(interface, attribute)
+ for attribute in interface.attributes
+ # Skip attributes in the IGNORE_MEMBERS list or if an
+ # extended attribute is in the IGNORE_EXTENDED_ATTRIBUTES.
+ if (not _suppress_attribute(interface.name, attribute.name) and
+ not dart_attributes.is_constructor_attribute(attribute) and
+ not _suppress_extended_attributes(attribute.extended_attributes) and
+ not ('DartSuppress' in attribute.extended_attributes and
+ attribute.extended_attributes.get('DartSuppress') == None))]
+ template_contents.update({
+ 'attributes': attributes,
+ 'has_accessors': any(attribute['is_expose_js_accessors'] for attribute in attributes),
+ 'has_attribute_configuration': any(
+ not (attribute['is_expose_js_accessors'] or
+ attribute['is_static'] or
+ attribute['runtime_enabled_function'] or
+ attribute['per_context_enabled_function'])
+ for attribute in attributes),
+ 'has_constructor_attributes': any(attribute['constructor_type'] for attribute in attributes),
+ 'has_per_context_enabled_attributes': any(attribute['per_context_enabled_function'] for attribute in attributes),
+ 'has_replaceable_attributes': any(attribute['is_replaceable'] for attribute in attributes),
+ })
+
+ # Methods
+ methods = [dart_methods.generate_method(interface, method)
+ for method in interface.operations
+ # Skip anonymous special operations (methods name empty).
+ # Skip methods in our IGNORE_MEMBERS list.
+ # Skip methods w/ extended attributes in IGNORE_EXTENDED_ATTRIBUTES list.
+ if (method.name and
+ # TODO(terry): Eventual eliminate the IGNORE_MEMBERS in favor of DartSupress.
+ not _suppress_method(interface.name, method.name) and
+ not _suppress_extended_attributes(method.extended_attributes) and
+ not 'DartSuppress' in method.extended_attributes)]
+ generate_overloads(methods)
+ for method in methods:
+ method['do_generate_method_configuration'] = (
+ method['do_not_check_signature'] and
+ not method['per_context_enabled_function'] and
+ # For overloaded methods, only generate one accessor
+ ('overload_index' not in method or method['overload_index'] == 1))
+
+ template_contents.update({
+ 'has_origin_safe_method_setter': any(
+ method['is_check_security_for_frame'] and not method['is_read_only']
+ for method in methods),
+ 'has_method_configuration': any(method['do_generate_method_configuration'] for method in methods),
+ 'has_per_context_enabled_methods': any(method['per_context_enabled_function'] for method in methods),
+ 'methods': methods,
+ })
+
+ template_contents.update({
+ 'indexed_property_getter': indexed_property_getter(interface),
+ 'indexed_property_setter': indexed_property_setter(interface),
+ 'indexed_property_deleter': indexed_property_deleter(interface),
+ 'is_override_builtins': 'OverrideBuiltins' in extended_attributes,
+ 'named_property_getter': named_property_getter(interface),
+ 'named_property_setter': named_property_setter(interface),
+ 'named_property_deleter': named_property_deleter(interface),
+ })
+
+ return template_contents
+
+
+# [DeprecateAs], [Reflect], [RuntimeEnabled]
+def generate_constant(constant):
+ # (Blink-only) string literals are unquoted in tokenizer, must be re-quoted
+ # in C++.
+ if constant.idl_type.name == 'String':
+ value = '"%s"' % constant.value
+ else:
+ value = constant.value
+
+ extended_attributes = constant.extended_attributes
+ return {
+ 'cpp_class': extended_attributes.get('PartialInterfaceImplementedAs'),
+ 'name': constant.name,
+ # FIXME: use 'reflected_name' as correct 'name'
+ 'reflected_name': extended_attributes.get('Reflect', constant.name),
+ 'runtime_enabled_function': DartUtilities.runtime_enabled_function_name(constant),
+ 'value': value,
+ }
+
+
+################################################################################
+# Overloads
+################################################################################
+
+def generate_overloads(methods):
+ generate_overloads_by_type(methods, is_static=False) # Regular methods
+ generate_overloads_by_type(methods, is_static=True)
+
+
+def generate_overloads_by_type(methods, is_static):
+ # Generates |overloads| template values and modifies |methods| in place;
+ # |is_static| flag used (instead of partitioning list in 2) because need to
+ # iterate over original list of methods to modify in place
+ method_counts = defaultdict(lambda: 0)
+ for method in methods:
+ if method['is_static'] != is_static:
+ continue
+ name = method['name']
+ # FIXME(vsm): We don't seem to capture optional param
+ # overloads here.
+ method_counts[name] += 1
+
+ # Filter to only methods that are actually overloaded
+ overloaded_method_counts = dict((name, count)
+ for name, count in method_counts.iteritems()
+ if count > 1)
+
+ # Add overload information only to overloaded methods, so template code can
+ # easily verify if a function is overloaded
+ method_overloads = defaultdict(list)
+ for method in methods:
+ name = method['name']
+ if (method['is_static'] != is_static or
+ name not in overloaded_method_counts):
+ continue
+ # Overload index includes self, so first append, then compute index
+ method_overloads[name].append(method)
+ method.update({
+ 'overload_index': len(method_overloads[name]),
+ 'overload_resolution_expression': overload_resolution_expression(method),
+ })
+ # FIXME(vsm): Looks like we only handle optional parameters if
+ # the method is already overloaded. For a non-overloaded method
+ # with optional parameters, we never get here.
+
+ # Resolution function is generated after last overloaded function;
+ # package necessary information into |method.overloads| for that method.
+ for method in methods:
+ if (method['is_static'] != is_static or
+ 'overload_index' not in method):
+ continue
+ name = method['name']
+ if method['overload_index'] != overloaded_method_counts[name]:
+ continue
+ overloads = method_overloads[name]
+ minimum_number_of_required_arguments = min(
+ overload['number_of_required_arguments']
+ for overload in overloads)
+ method['overloads'] = {
+ 'has_exception_state': bool(minimum_number_of_required_arguments),
+ 'methods': overloads,
+ 'minimum_number_of_required_arguments': minimum_number_of_required_arguments,
+ 'name': name,
+ }
+
+
+def overload_resolution_expression(method):
+ # Expression is an OR of ANDs: each term in the OR corresponds to a
+ # possible argument count for a given method, with type checks.
+ # FIXME: Blink's overload resolution algorithm is incorrect, per:
+ # Implement WebIDL overload resolution algorithm.
+ # https://code.google.com/p/chromium/issues/detail?id=293561
+ #
+ # Currently if distinguishing non-primitive type from primitive type,
+ # (e.g., sequence<DOMString> from DOMString or Dictionary from double)
+ # the method with a non-primitive type argument must appear *first* in the
+ # IDL file, since we're not adding a check to primitive types.
+ # FIXME: Once fixed, check IDLs, as usually want methods with primitive
+ # types to appear first (style-wise).
+ #
+ # Properly:
+ # 1. Compute effective overload set.
+ # 2. First check type list length.
+ # 3. If multiple entries for given length, compute distinguishing argument
+ # index and have check for that type.
+ arguments = method['arguments']
+ overload_checks = [overload_check_expression(method, index)
+ # check *omitting* optional arguments at |index| and up:
+ # index 0 => argument_count 0 (no arguments)
+ # index 1 => argument_count 1 (index 0 argument only)
+ for index, argument in enumerate(arguments)
+ if argument['is_optional']]
+ # FIXME: this is wrong if a method has optional arguments and a variadic
+ # one, though there are not yet any examples of this
+ if not method['is_variadic']:
+ # Includes all optional arguments (len = last index + 1)
+ overload_checks.append(overload_check_expression(method, len(arguments)))
+ return ' || '.join('(%s)' % check for check in overload_checks)
+
+
+def overload_check_expression(method, argument_count):
+ overload_checks = ['info.Length() == %s' % argument_count]
+ arguments = method['arguments'][:argument_count]
+ overload_checks.extend(overload_check_argument(index, argument)
+ for index, argument in
+ enumerate(arguments))
+ return ' && '.join('(%s)' % check for check in overload_checks if check)
+
+
+def overload_check_argument(index, argument):
+ def null_or_optional_check():
+ # If undefined is passed for an optional argument, the argument should
+ # be treated as missing; otherwise undefined is not allowed.
+
+ # FIXME(vsm): We need Dart specific checks here.
+ if idl_type.is_nullable:
+ if argument['is_optional']:
+ return 'isUndefinedOrNull(%s)'
+ return '%s->IsNull()'
+ if argument['is_optional']:
+ return '%s->IsUndefined()'
+ return None
+
+ cpp_value = 'info[%s]' % index
+ idl_type = argument['idl_type_object']
+ # FIXME(vsm): We need Dart specific checks for the rest of this method.
+ # FIXME: proper type checking, sharing code with attributes and methods
+ # FIXME(terry): StrictTypeChecking no longer supported; TypeChecking is
+ # new extended attribute.
+ if idl_type.name == 'String' and argument['is_strict_type_checking']:
+ return ' || '.join(['isUndefinedOrNull(%s)' % cpp_value,
+ '%s->IsString()' % cpp_value,
+ '%s->IsObject()' % cpp_value])
+ if idl_type.array_or_sequence_type:
+ return '%s->IsArray()' % cpp_value
+ if idl_type.is_callback_interface:
+ return ' || '.join(['%s->IsNull()' % cpp_value,
+ '%s->IsFunction()' % cpp_value])
+ if idl_type.is_wrapper_type:
+ type_check = 'V8{idl_type}::hasInstance({cpp_value}, info.GetIsolate())'.format(idl_type=idl_type.base_type, cpp_value=cpp_value)
+ if idl_type.is_nullable:
+ type_check = ' || '.join(['%s->IsNull()' % cpp_value, type_check])
+ return type_check
+ if idl_type.is_interface_type:
+ # Non-wrapper types are just objects: we don't distinguish type
+ # We only allow undefined for non-wrapper types (notably Dictionary),
+ # as we need it for optional Dictionary arguments, but we don't want to
+ # change behavior of existing bindings for other types.
+ type_check = '%s->IsObject()' % cpp_value
+ added_check_template = null_or_optional_check()
+ if added_check_template:
+ type_check = ' || '.join([added_check_template % cpp_value,
+ type_check])
+ return type_check
+ return None
+
+
+################################################################################
+# Constructors
+################################################################################
+
+# [Constructor]
+def generate_custom_constructor(interface, constructor):
+ return {
+ 'arguments': [custom_constructor_argument(argument, index)
+ for index, argument in enumerate(constructor.arguments)],
+ 'auto_scope': 'true',
+ 'is_auto_scope': True,
+ 'number_of_arguments': len(constructor.arguments),
+ 'number_of_required_arguments':
+ number_of_required_arguments(constructor),
+ }
+
+
+# We don't need much from this - just the idl_type_objects and preproceed_type
+# to use in generating the resolver strings.
+def custom_constructor_argument(argument, index):
+ return {
+ 'idl_type_object': argument.idl_type,
+ 'preprocessed_type': argument.idl_type.preprocessed_type,
+ }
+
+
+# [Constructor]
+def generate_constructor(interface, constructor):
+ return {
+ 'argument_list': constructor_argument_list(interface, constructor),
+ # TODO(terry): Use dart_methods.generate_argument instead constructor_argument.
+ 'arguments': [constructor_argument(interface, argument, index)
+ for index, argument in enumerate(constructor.arguments)],
+ 'has_exception_state':
+ # [RaisesException=Constructor]
+ interface.extended_attributes.get('RaisesException') == 'Constructor' or
+ any(argument for argument in constructor.arguments
+ if argument.idl_type.name == 'SerializedScriptValue' or
+ argument.idl_type.is_integer_type),
+ 'is_constructor': True,
+ 'auto_scope': 'true',
+ 'is_auto_scope': True,
+ 'is_variadic': False, # Required for overload resolution
+ 'number_of_required_arguments':
+ number_of_required_arguments(constructor),
+ 'number_of_arguments': len(constructor.arguments),
+ }
+
+
+def constructor_argument_list(interface, constructor):
+ # FIXME: unify with dart_methods.cpp_argument.
+
+ def cpp_argument(argument):
+ argument_name = dart_types.check_reserved_name(argument.name)
+ idl_type = argument.idl_type
+ if idl_type.is_typed_array_type:
+ return '%s.get()' % argument_name
+
+ return argument_name
+
+ arguments = []
+ # [ConstructorCallWith=ExecutionContext]
+ if DartUtilities.has_extended_attribute_value(interface, 'ConstructorCallWith', 'ExecutionContext'):
+ arguments.append('context')
+ # [ConstructorCallWith=Document]
+ if DartUtilities.has_extended_attribute_value(interface, 'ConstructorCallWith', 'Document'):
+ arguments.append('document')
+
+ arguments.extend([cpp_argument(argument) for argument in constructor.arguments])
+
+ # [RaisesException=Constructor]
+ if interface.extended_attributes.get('RaisesException') == 'Constructor':
+ arguments.append('es')
+
+ return arguments
+
+
+# TODO(terry): Eliminate this function use dart_methods.generate_argument instead
+# for all constructor arguments.
+def constructor_argument(interface, argument, index):
+ idl_type = argument.idl_type
+ default_value = str(argument.default_value) if argument.default_value else None
+
+ argument_content = {
+ 'cpp_type': idl_type.cpp_type_args(),
+ 'local_cpp_type': idl_type.cpp_type_args(argument.extended_attributes, used_as_argument=True),
+ # FIXME: check that the default value's type is compatible with the argument's
+ 'default_value': default_value,
+ # FIXME: remove once [Default] removed and just use argument.default_value
+ 'has_default': 'Default' in argument.extended_attributes or default_value,
+ 'idl_type_object': idl_type,
+ 'preprocessed_type': idl_type.preprocessed_type,
+ # Dictionary is special-cased, but arrays and sequences shouldn't be
+ 'idl_type': not idl_type.array_or_sequence_type and idl_type.base_type,
+ 'index': index,
+ 'is_array_or_sequence_type': not not idl_type.array_or_sequence_type,
+ 'is_optional': argument.is_optional,
+ 'is_strict_type_checking': False, # Required for overload resolution
+ 'name': argument.name,
+ 'dart_value_to_local_cpp_value': dart_methods.dart_value_to_local_cpp_value(interface, argument, index),
+ }
+ return argument_content
+
+
+def generate_constructor_overloads(constructors):
+ if len(constructors) <= 1:
+ return
+ for overload_index, constructor in enumerate(constructors):
+ constructor.update({
+ 'overload_index': overload_index + 1,
+ 'overload_resolution_expression':
+ overload_resolution_expression(constructor),
+ })
+
+
+# [NamedConstructor]
+def generate_named_constructor(interface):
+ extended_attributes = interface.extended_attributes
+ if 'NamedConstructor' not in extended_attributes:
+ return None
+ # FIXME: parser should return named constructor separately;
+ # included in constructors (and only name stored in extended attribute)
+ # for Perl compatibility
+ idl_constructor = interface.constructors[0]
+ constructor = generate_constructor(interface, idl_constructor)
+ # FIXME(vsm): We drop the name. We don't use this in Dart APIs right now.
+ # We probably need to encode this somehow to deal with conflicts.
+ # constructor['name'] = extended_attributes['NamedConstructor']
+ return constructor
+
+
+def number_of_required_arguments(constructor):
+ return len([argument for argument in constructor.arguments
+ if not (argument.is_optional and not (('Default' in argument.extended_attributes) or argument.default_value))])
+
+
+def interface_length(interface, constructors):
+ # Docs: http://heycam.github.io/webidl/#es-interface-call
+ if 'EventConstructor' in interface.extended_attributes:
+ return 1
+ if not constructors:
+ return 0
+ return min(constructor['number_of_required_arguments']
+ for constructor in constructors)
+
+
+################################################################################
+# Special operations (methods)
+# http://heycam.github.io/webidl/#idl-special-operations
+################################################################################
+
+def property_getter(getter, cpp_arguments):
+ def is_null_expression(idl_type):
+ if idl_type.is_union_type:
+ return ' && '.join('!result%sEnabled' % i
+ for i, _ in enumerate(idl_type.member_types))
+ if idl_type.name == 'String':
+ # FIXME(vsm): This looks V8 specific.
+ return 'result.isNull()'
+ if idl_type.is_interface_type:
+ return '!result'
+ return ''
+
+ idl_type = getter.idl_type
+ extended_attributes = getter.extended_attributes
+ is_raises_exception = 'RaisesException' in extended_attributes
+
+ # FIXME: make more generic, so can use dart_methods.cpp_value
+ cpp_method_name = 'receiver->%s' % DartUtilities.cpp_name(getter)
+
+ if is_raises_exception:
+ cpp_arguments.append('es')
+ union_arguments = idl_type.union_arguments
+ if union_arguments:
+ cpp_arguments.extend(union_arguments)
+
+ cpp_value = '%s(%s)' % (cpp_method_name, ', '.join(cpp_arguments))
+
+ return {
+ 'cpp_type': idl_type.cpp_type,
+ 'cpp_value': cpp_value,
+ 'is_custom':
+ 'Custom' in extended_attributes and
+ (not extended_attributes['Custom'] or
+ DartUtilities.has_extended_attribute_value(getter, 'Custom', 'PropertyGetter')),
+ 'is_custom_property_enumerator': DartUtilities.has_extended_attribute_value(
+ getter, 'Custom', 'PropertyEnumerator'),
+ 'is_custom_property_query': DartUtilities.has_extended_attribute_value(
+ getter, 'Custom', 'PropertyQuery'),
+ 'is_enumerable': 'NotEnumerable' not in extended_attributes,
+ 'is_null_expression': is_null_expression(idl_type),
+ 'is_raises_exception': is_raises_exception,
+ 'name': DartUtilities.cpp_name(getter),
+ 'union_arguments': union_arguments,
+ 'dart_set_return_value': idl_type.dart_set_return_value('result',
+ extended_attributes=extended_attributes,
+ script_wrappable='receiver',
+ release=idl_type.release)}
+
+
+def property_setter(interface, setter):
+ idl_type = setter.arguments[1].idl_type
+ extended_attributes = setter.extended_attributes
+ interface_extended_attributes = interface.extended_attributes
+ is_raises_exception = 'RaisesException' in extended_attributes
+ return {
+ 'has_strict_type_checking':
+ 'StrictTypeChecking' in extended_attributes and
+ idl_type.is_wrapper_type,
+ 'idl_type': idl_type.base_type,
+ 'is_custom': 'Custom' in extended_attributes,
+ 'has_exception_state': is_raises_exception or
+ idl_type.is_integer_type,
+ 'is_raises_exception': is_raises_exception,
+ 'name': DartUtilities.cpp_name(setter),
+ 'dart_value_to_local_cpp_value': idl_type.dart_value_to_local_cpp_value(
+ interface_extended_attributes, extended_attributes, 'propertyValue', False),
+ }
+
+
+def property_deleter(deleter):
+ idl_type = deleter.idl_type
+ if str(idl_type) != 'boolean':
+ raise Exception(
+ 'Only deleters with boolean type are allowed, but type is "%s"' %
+ idl_type)
+ extended_attributes = deleter.extended_attributes
+ return {
+ 'is_custom': 'Custom' in extended_attributes,
+ 'is_raises_exception': 'RaisesException' in extended_attributes,
+ 'name': DartUtilities.cpp_name(deleter),
+ }
+
+
+################################################################################
+# Indexed properties
+# http://heycam.github.io/webidl/#idl-indexed-properties
+################################################################################
+
+def indexed_property_getter(interface):
+ try:
+ # Find indexed property getter, if present; has form:
+ # getter TYPE [OPTIONAL_IDENTIFIER](unsigned long ARG1)
+ getter = next(
+ method
+ for method in interface.operations
+ if ('getter' in method.specials and
+ len(method.arguments) == 1 and
+ str(method.arguments[0].idl_type) == 'unsigned long'))
+ except StopIteration:
+ return None
+
+ getter.name = getter.name or 'anonymousIndexedGetter'
+
+ return property_getter(getter, ['index'])
+
+
+def indexed_property_setter(interface):
+ try:
+ # Find indexed property setter, if present; has form:
+ # setter RETURN_TYPE [OPTIONAL_IDENTIFIER](unsigned long ARG1, ARG_TYPE ARG2)
+ setter = next(
+ method
+ for method in interface.operations
+ if ('setter' in method.specials and
+ len(method.arguments) == 2 and
+ str(method.arguments[0].idl_type) == 'unsigned long'))
+ except StopIteration:
+ return None
+
+ return property_setter(interface, setter)
+
+
+def indexed_property_deleter(interface):
+ try:
+ # Find indexed property deleter, if present; has form:
+ # deleter TYPE [OPTIONAL_IDENTIFIER](unsigned long ARG)
+ deleter = next(
+ method
+ for method in interface.operations
+ if ('deleter' in method.specials and
+ len(method.arguments) == 1 and
+ str(method.arguments[0].idl_type) == 'unsigned long'))
+ except StopIteration:
+ return None
+
+ return property_deleter(deleter)
+
+
+################################################################################
+# Named properties
+# http://heycam.github.io/webidl/#idl-named-properties
+################################################################################
+
+def named_property_getter(interface):
+ try:
+ # Find named property getter, if present; has form:
+ # getter TYPE [OPTIONAL_IDENTIFIER](DOMString ARG1)
+ getter = next(
+ method
+ for method in interface.operations
+ if ('getter' in method.specials and
+ len(method.arguments) == 1 and
+ str(method.arguments[0].idl_type) == 'DOMString'))
+ except StopIteration:
+ return None
+
+ getter.name = getter.name or 'anonymousNamedGetter'
+ return property_getter(getter, ['propertyName'])
+
+
+def named_property_setter(interface):
+ try:
+ # Find named property setter, if present; has form:
+ # setter RETURN_TYPE [OPTIONAL_IDENTIFIER](DOMString ARG1, ARG_TYPE ARG2)
+ setter = next(
+ method
+ for method in interface.operations
+ if ('setter' in method.specials and
+ len(method.arguments) == 2 and
+ str(method.arguments[0].idl_type) == 'DOMString'))
+ except StopIteration:
+ return None
+
+ return property_setter(interface, setter)
+
+
+def named_property_deleter(interface):
+ try:
+ # Find named property deleter, if present; has form:
+ # deleter TYPE [OPTIONAL_IDENTIFIER](DOMString ARG)
+ deleter = next(
+ method
+ for method in interface.operations
+ if ('deleter' in method.specials and
+ len(method.arguments) == 1 and
+ str(method.arguments[0].idl_type) == 'DOMString'))
+ except StopIteration:
+ return None
+
+ return property_deleter(deleter)
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