示例#1
0
def generate_interface(interface):
    includes.clear()
    includes.update(INTERFACE_CPP_INCLUDES)
    v8_class_name = v8_utilities.v8_class_name(interface)

    template_contents = {
        'cpp_class_name': cpp_name(interface),
        'header_includes': INTERFACE_H_INCLUDES,
        'interface_name': interface.name,
        'v8_class_name': v8_class_name,
    }

    template_contents.update({
        'constants': [generate_constant(constant) for constant in interface.constants],
        'do_not_check_constants': 'DoNotCheckConstants' in interface.extended_attributes,
    })

    attributes = [v8_attributes.generate_attribute(interface, attribute)
                  for attribute in interface.attributes]
    template_contents.update({
        'attributes': attributes,
        'has_constructor_attributes': any(attribute['is_constructor'] for attribute in attributes),
        'has_per_context_enabled_attributes': any(attribute['per_context_enabled_function_name'] for attribute in attributes),
        'has_replaceable_attributes': any(attribute['is_replaceable'] for attribute in attributes),
        'has_runtime_enabled_attributes': any(attribute['runtime_enabled_function_name'] for attribute in attributes),
    })

    template_contents['methods'] = [v8_methods.generate_method(method)
                                    for method in interface.operations]

    return template_contents
示例#2
0
def generate_interface(interface):
    includes.clear()
    includes.update(INTERFACE_CPP_INCLUDES)
    v8_class_name = v8_utilities.v8_class_name(interface)

    template_contents = {
        'cpp_class_name': cpp_name(interface),
        'header_includes': INTERFACE_H_INCLUDES,
        'interface_name': interface.name,
        'v8_class_name': v8_class_name,
    }

    template_contents.update({
        'constants':
        [generate_constant(constant) for constant in interface.constants],
        'do_not_check_constants':
        'DoNotCheckConstants' in interface.extended_attributes,
    })

    attributes = [
        v8_attributes.generate_attribute(interface, attribute)
        for attribute in interface.attributes
    ]
    template_contents.update({
        'attributes':
        attributes,
        'has_constructor_attributes':
        any(attribute['is_constructor'] for attribute in attributes),
        'has_per_context_enabled_attributes':
        any(attribute['per_context_enabled_function_name']
            for attribute in attributes),
        'has_replaceable_attributes':
        any(attribute['is_replaceable'] for attribute in attributes),
        'has_runtime_enabled_attributes':
        any(attribute['runtime_enabled_function_name']
            for attribute in attributes),
    })

    template_contents['methods'] = [
        v8_methods.generate_method(method) for method in interface.operations
    ]

    return template_contents
示例#3
0
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(v8_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:
        includes.update(["bindings/v8/ScriptController.h", "bindings/v8/V8WindowShell.h", "core/frame/LocalFrame.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/v8/BindingSecurity.h")

    # [DependentLifetime]
    is_dependent_lifetime = "DependentLifetime" in extended_attributes

    # [MeasureAs]
    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:
        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": v8_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:
        v8_types.add_includes_for_interface(special_wrap_interface)

    # [Custom=Wrap], [SetWrapperReferenceFrom]
    has_visit_dom_wrapper = (
        has_extended_attribute_value(interface, "Custom", "VisitDOMWrapper")
        or reachable_node_function
        or set_wrapper_reference_to_list
    )

    this_gc_type = gc_type(interface)

    template_contents = {
        "conditional_string": conditional_string(interface),  # [Conditional]
        "cpp_class": cpp_name(interface),
        "gc_type": this_gc_type,
        "has_custom_legacy_call_as_function": has_extended_attribute_value(
            interface, "Custom", "LegacyCallAsFunction"
        ),  # [Custom=LegacyCallAsFunction]
        "has_custom_to_v8": has_extended_attribute_value(interface, "Custom", "ToV8"),  # [Custom=ToV8]
        "has_custom_wrap": 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_node": inherits_interface(interface.name, "Node"),
        "measure_as": v8_utilities.measure_as(interface),  # [MeasureAs]
        "parent_interface": parent_interface,
        "pass_cpp_type": cpp_template_type(cpp_ptr_type("PassRefPtr", "RawPtr", this_gc_type), cpp_name(interface)),
        "reachable_node_function": reachable_node_function,
        "runtime_enabled_function": runtime_enabled_function_name(interface),  # [RuntimeEnabled]
        "set_wrapper_reference_to_list": set_wrapper_reference_to_list,
        "special_wrap_for": special_wrap_for,
        "v8_class": v8_utilities.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"
    ]
    if len(constructors) > 1:
        template_contents["constructor_overloads"] = generate_overloads(constructors)

    # [CustomConstructor]
    custom_constructors = [
        {  # Only needed for computing interface length
            "number_of_required_arguments": number_of_required_arguments(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/v8/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("bindings/v8/V8ObjectConstructor.h")
        includes.add("core/frame/DOMWindow.h")

    template_contents.update(
        {
            "any_type_attributes": any_type_attributes,
            "constructors": 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": has_extended_attribute_value(
                interface, "ConstructorCallWith", "Document"
            ),  # [ConstructorCallWith=Document]
            "is_constructor_call_with_execution_context": 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 = [v8_attributes.generate_attribute(interface, attribute) for attribute in interface.attributes]
    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 = [
        v8_methods.generate_method(interface, method) for method in interface.operations if method.name
    ]  # Skip anonymous special operations (methods)
    generate_method_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
示例#4
0
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(
            v8_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:
        includes.update([
            'bindings/v8/ScriptController.h', 'bindings/v8/V8WindowShell.h',
            'core/frame/LocalFrame.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/v8/BindingSecurity.h')

    # [DependentLifetime]
    is_dependent_lifetime = 'DependentLifetime' in extended_attributes

    # [MeasureAs]
    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:
        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': v8_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:
        v8_types.add_includes_for_interface(special_wrap_interface)

    # [Custom=Wrap], [SetWrapperReferenceFrom]
    has_visit_dom_wrapper = (has_extended_attribute_value(
        interface, 'Custom', 'VisitDOMWrapper') or reachable_node_function
                             or set_wrapper_reference_to_list)

    this_gc_type = gc_type(interface)

    template_contents = {
        'conditional_string':
        conditional_string(interface),  # [Conditional]
        'cpp_class':
        cpp_name(interface),
        'gc_type':
        this_gc_type,
        'has_custom_legacy_call_as_function':
        has_extended_attribute_value(
            interface, 'Custom',
            'LegacyCallAsFunction'),  # [Custom=LegacyCallAsFunction]
        'has_custom_to_v8':
        has_extended_attribute_value(interface, 'Custom',
                                     'ToV8'),  # [Custom=ToV8]
        'has_custom_wrap':
        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_node':
        inherits_interface(interface.name, 'Node'),
        'measure_as':
        v8_utilities.measure_as(interface),  # [MeasureAs]
        'parent_interface':
        parent_interface,
        'pass_cpp_type':
        cpp_template_type(cpp_ptr_type('PassRefPtr', 'RawPtr', this_gc_type),
                          cpp_name(interface)),
        'reachable_node_function':
        reachable_node_function,
        'runtime_enabled_function':
        runtime_enabled_function_name(interface),  # [RuntimeEnabled]
        'set_wrapper_reference_to_list':
        set_wrapper_reference_to_list,
        'special_wrap_for':
        special_wrap_for,
        'v8_class':
        v8_utilities.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'
    ]
    if len(constructors) > 1:
        template_contents['constructor_overloads'] = generate_overloads(
            constructors)

    # [CustomConstructor]
    custom_constructors = [{  # Only needed for computing interface length
        'number_of_required_arguments':
            number_of_required_arguments(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/v8/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('bindings/v8/V8ObjectConstructor.h')
        includes.add('core/frame/DOMWindow.h')

    template_contents.update({
        'any_type_attributes':
        any_type_attributes,
        'constructors':
        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':
        has_extended_attribute_value(
            interface, 'ConstructorCallWith',
            'Document'),  # [ConstructorCallWith=Document]
        'is_constructor_call_with_execution_context':
        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 = [
        v8_attributes.generate_attribute(interface, attribute)
        for attribute in interface.attributes
    ]
    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 = [
        v8_methods.generate_method(interface, method)
        for method in interface.operations if method.name
    ]  # Skip anonymous special operations (methods)
    generate_method_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
示例#5
0
def generate_interface(interface):
    includes.clear()
    includes.update(INTERFACE_CPP_INCLUDES)
    header_includes = INTERFACE_H_INCLUDES

    parent_interface = interface.parent
    if parent_interface:
        header_includes.update(v8_types.includes_for_type(parent_interface))
    extended_attributes = interface.extended_attributes

    # [CheckSecurity]
    is_check_security = 'CheckSecurity' in extended_attributes
    if is_check_security:
        includes.update(['bindings/v8/BindingSecurity.h',
                         'bindings/v8/ExceptionState.h'])

    # [GenerateVisitDOMWrapper]
    generate_visit_dom_wrapper_function = extended_attributes.get('GenerateVisitDOMWrapper')
    if generate_visit_dom_wrapper_function:
        includes.update(['bindings/v8/V8GCController.h',
                         'core/dom/Element.h'])

    # [MeasureAs]
    is_measure_as = 'MeasureAs' in extended_attributes
    if is_measure_as:
        includes.add('core/frame/UseCounter.h')

    # [RaisesException=Constructor]
    is_constructor_raises_exception = extended_attributes.get('RaisesException') == 'Constructor'
    if is_constructor_raises_exception:
        includes.add('bindings/v8/ExceptionState.h')

    # [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:
        v8_types.add_includes_for_type(special_wrap_interface)

    # Constructors
    # [Constructor]
    has_constructor = 'Constructor' in extended_attributes
    if has_constructor:
        includes.add('bindings/v8/V8ObjectConstructor.h')

    # [EventConstructor]
    has_event_constructor = 'EventConstructor' in extended_attributes
    has_any_type_attributes = any(attribute
                                  for attribute in interface.attributes
                                  if attribute.idl_type == 'any')
    if has_event_constructor:
        includes.update(['bindings/v8/Dictionary.h',
                         'bindings/v8/V8ObjectConstructor.h'])
        if has_any_type_attributes:
            includes.add('bindings/v8/SerializedScriptValue.h')

    template_contents = {
        'conditional_string': conditional_string(interface),  # [Conditional]
        'constructor_arguments': constructor_arguments(interface),
        'cpp_class': cpp_name(interface),
        'generate_visit_dom_wrapper_function': generate_visit_dom_wrapper_function,
        'has_constructor': has_constructor,
        'has_custom_legacy_call_as_function': has_extended_attribute_value(interface, 'Custom', 'LegacyCallAsFunction'),  # [Custom=LegacyCallAsFunction]
        'has_custom_to_v8': has_extended_attribute_value(interface, 'Custom', 'ToV8'),  # [Custom=ToV8]
        'has_custom_wrap': has_extended_attribute_value(interface, 'Custom', 'Wrap'),  # [Custom=Wrap]
        'has_event_constructor': has_event_constructor,
        'has_any_type_attributes': has_any_type_attributes,
        'has_visit_dom_wrapper': (
            # [Custom=Wrap], [GenerateVisitDOMWrapper]
            has_extended_attribute_value(interface, 'Custom', 'VisitDOMWrapper') or
            'GenerateVisitDOMWrapper' in extended_attributes),
        'header_includes': header_includes,
        'interface_name': interface.name,
        'is_active_dom_object': 'ActiveDOMObject' in extended_attributes,  # [ActiveDOMObject]
        'is_check_security': is_check_security,
        'is_constructor_call_with_document': has_extended_attribute_value(
            interface, 'ConstructorCallWith', 'Document'),  # [ConstructorCallWith=Document]
        'is_constructor_call_with_execution_context': has_extended_attribute_value(
            interface, 'ConstructorCallWith', 'ExecutionContext'),  # [ConstructorCallWith=ExeuctionContext]
        'is_constructor_raises_exception': is_constructor_raises_exception,
        'is_dependent_lifetime': 'DependentLifetime' in extended_attributes,  # [DependentLifetime]
        'length': 1 if has_event_constructor else 0,  # FIXME: more complex in general, see discussion of length in http://heycam.github.io/webidl/#es-interface-call
        'measure_as': v8_utilities.measure_as(interface),  # [MeasureAs]
        'parent_interface': parent_interface,
        'runtime_enabled_function': runtime_enabled_function_name(interface),  # [RuntimeEnabled]
        'special_wrap_for': special_wrap_for,
        'v8_class': v8_utilities.v8_class_name(interface),
    }

    template_contents.update({
        'constants': [generate_constant(constant) for constant in interface.constants],
        'do_not_check_constants': 'DoNotCheckConstants' in extended_attributes,
    })

    attributes = [v8_attributes.generate_attribute(interface, attribute)
                  for attribute in interface.attributes]
    template_contents.update({
        'attributes': attributes,
        'has_accessors': any(attribute['is_expose_js_accessors'] 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 = [v8_methods.generate_method(interface, method)
               for method in interface.operations]
    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,
    })

    return template_contents
示例#6
0
def generate_interface(interface):
    includes.clear()
    includes.update(INTERFACE_CPP_INCLUDES)
    header_includes = INTERFACE_H_INCLUDES

    parent_interface = interface.parent
    if parent_interface:
        header_includes.update(v8_types.includes_for_type(parent_interface))
    extended_attributes = interface.extended_attributes

    # [CheckSecurity]
    is_check_security = 'CheckSecurity' in extended_attributes
    if is_check_security:
        includes.add('bindings/v8/BindingSecurity.h')

    # [GenerateVisitDOMWrapper]
    generate_visit_dom_wrapper_function = extended_attributes.get(
        'GenerateVisitDOMWrapper')
    if generate_visit_dom_wrapper_function:
        includes.update(['bindings/v8/V8GCController.h', 'core/dom/Element.h'])

    # [MeasureAs]
    is_measure_as = 'MeasureAs' in extended_attributes
    if is_measure_as:
        includes.add('core/frame/UseCounter.h')

    # [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:
        v8_types.add_includes_for_type(special_wrap_interface)

    # 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]
    has_custom_constructor = 'CustomConstructor' in extended_attributes

    # [EventConstructor]
    has_event_constructor = 'EventConstructor' in extended_attributes
    any_type_attributes = [
        attribute for attribute in interface.attributes
        if attribute.idl_type == 'any'
    ]
    if has_event_constructor:
        includes.add('bindings/v8/Dictionary.h')
        if any_type_attributes:
            includes.add('bindings/v8/SerializedScriptValue.h')

    # [NamedConstructor]
    if 'NamedConstructor' in extended_attributes:
        # FIXME: parser should return named constructor separately;
        # included in constructors (and only name stored in extended attribute)
        # for Perl compatibility
        named_constructor = {'name': extended_attributes['NamedConstructor']}
    else:
        named_constructor = None

    if (constructors or has_custom_constructor or has_event_constructor
            or named_constructor):
        includes.add('bindings/v8/V8ObjectConstructor.h')

    template_contents = {
        'any_type_attributes':
        any_type_attributes,
        'conditional_string':
        conditional_string(interface),  # [Conditional]
        'constructors':
        constructors,
        'cpp_class':
        cpp_name(interface),
        'generate_visit_dom_wrapper_function':
        generate_visit_dom_wrapper_function,
        'has_custom_constructor':
        has_custom_constructor,
        'has_custom_legacy_call_as_function':
        has_extended_attribute_value(
            interface, 'Custom',
            'LegacyCallAsFunction'),  # [Custom=LegacyCallAsFunction]
        'has_custom_to_v8':
        has_extended_attribute_value(interface, 'Custom',
                                     'ToV8'),  # [Custom=ToV8]
        'has_custom_wrap':
        has_extended_attribute_value(interface, 'Custom',
                                     'Wrap'),  # [Custom=Wrap]
        'has_event_constructor':
        has_event_constructor,
        'has_visit_dom_wrapper': (
            # [Custom=Wrap], [GenerateVisitDOMWrapper]
            has_extended_attribute_value(interface, 'Custom',
                                         'VisitDOMWrapper')
            or 'GenerateVisitDOMWrapper' in extended_attributes),
        'header_includes':
        header_includes,
        'interface_length':
        interface_length(interface, constructors),
        'interface_name':
        interface.name,
        'is_active_dom_object':
        'ActiveDOMObject' in extended_attributes,  # [ActiveDOMObject]
        'is_check_security':
        is_check_security,
        'is_constructor_call_with_document':
        has_extended_attribute_value(
            interface, 'ConstructorCallWith',
            'Document'),  # [ConstructorCallWith=Document]
        'is_constructor_call_with_execution_context':
        has_extended_attribute_value(
            interface, 'ConstructorCallWith',
            'ExecutionContext'),  # [ConstructorCallWith=ExeuctionContext]
        'is_constructor_raises_exception':
        extended_attributes.get('RaisesException') ==
        'Constructor',  # [RaisesException=Constructor]
        'is_dependent_lifetime':
        'DependentLifetime' in extended_attributes,  # [DependentLifetime]
        'is_event_target':
        inherits_interface(interface, 'EventTarget'),
        'is_node':
        inherits_interface(interface, 'Node'),
        'measure_as':
        v8_utilities.measure_as(interface),  # [MeasureAs]
        'named_constructor':
        named_constructor,
        'parent_interface':
        parent_interface,
        'runtime_enabled_function':
        runtime_enabled_function_name(interface),  # [RuntimeEnabled]
        'special_wrap_for':
        special_wrap_for,
        'v8_class':
        v8_utilities.v8_class_name(interface),
    }

    template_contents.update({
        'constants':
        [generate_constant(constant) for constant in interface.constants],
        'do_not_check_constants':
        'DoNotCheckConstants' in extended_attributes,
    })

    attributes = [
        v8_attributes.generate_attribute(interface, attribute)
        for attribute in interface.attributes
    ]
    template_contents.update({
        'attributes':
        attributes,
        'has_accessors':
        any(attribute['is_expose_js_accessors'] 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 = [
        v8_methods.generate_method(interface, method)
        for method in interface.operations
    ]
    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,
    })

    return template_contents
示例#7
0
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(v8_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:
        includes.update(['bindings/v8/ScriptController.h',
                         'bindings/v8/V8WindowShell.h',
                         'core/frame/LocalFrame.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/v8/BindingSecurity.h')

    # [DependentLifetime]
    is_dependent_lifetime = 'DependentLifetime' in extended_attributes

    # [MeasureAs]
    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:
        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': v8_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:
        v8_types.add_includes_for_interface(special_wrap_interface)

    # [WillBeGarbageCollected]
    is_will_be_garbage_collected = 'WillBeGarbageCollected' in extended_attributes

    # [Custom=Wrap], [SetWrapperReferenceFrom]
    has_visit_dom_wrapper = (
        has_extended_attribute_value(interface, 'Custom', 'VisitDOMWrapper') or
        reachable_node_function or
        set_wrapper_reference_to_list)

    template_contents = {
        'conditional_string': conditional_string(interface),  # [Conditional]
        'cpp_class': cpp_name(interface),
        'has_custom_legacy_call_as_function': has_extended_attribute_value(interface, 'Custom', 'LegacyCallAsFunction'),  # [Custom=LegacyCallAsFunction]
        'has_custom_to_v8': has_extended_attribute_value(interface, 'Custom', 'ToV8'),  # [Custom=ToV8]
        'has_custom_wrap': 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_will_be_garbage_collected': is_will_be_garbage_collected,
        'is_node': inherits_interface(interface.name, 'Node'),
        'measure_as': v8_utilities.measure_as(interface),  # [MeasureAs]
        'parent_interface': parent_interface,
        'pass_ref_ptr': 'PassRefPtrWillBeRawPtr'
                        if is_will_be_garbage_collected else 'PassRefPtr',
        'reachable_node_function': reachable_node_function,
        'ref_ptr': 'RefPtrWillBeRawPtr'
                   if is_will_be_garbage_collected else 'RefPtr',
        'runtime_enabled_function': runtime_enabled_function_name(interface),  # [RuntimeEnabled]
        'set_wrapper_reference_to_list': set_wrapper_reference_to_list,
        'special_wrap_for': special_wrap_for,
        'v8_class': v8_utilities.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 = [{  # Only needed for computing interface length
        'number_of_required_arguments':
            number_of_required_arguments(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/v8/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('bindings/v8/V8ObjectConstructor.h')
        includes.add('core/frame/DOMWindow.h')

    template_contents.update({
        'any_type_attributes': any_type_attributes,
        'constructors': 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': has_extended_attribute_value(
            interface, 'ConstructorCallWith', 'Document'),  # [ConstructorCallWith=Document]
        'is_constructor_call_with_execution_context': 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 = [v8_attributes.generate_attribute(interface, attribute)
                  for attribute in interface.attributes]
    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 = [v8_methods.generate_method(interface, method)
               for method in interface.operations
               if method.name]  # Skip anonymous special operations (methods)
    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
示例#8
0
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(v8_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:
        includes.update(['bindings/v8/ScriptController.h',
                         'bindings/v8/V8WindowShell.h',
                         'core/frame/LocalFrame.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/v8/BindingSecurity.h')

    # [DependentLifetime]
    is_dependent_lifetime = 'DependentLifetime' in extended_attributes

    # [MeasureAs]
    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:
        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': v8_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:
        v8_types.add_includes_for_interface(special_wrap_interface)

    # [Custom=Wrap], [SetWrapperReferenceFrom]
    has_visit_dom_wrapper = (
        has_extended_attribute_value(interface, 'Custom', 'VisitDOMWrapper') or
        reachable_node_function or
        set_wrapper_reference_to_list)

    this_gc_type = gc_type(interface)

    template_contents = {
        'conditional_string': conditional_string(interface),  # [Conditional]
        'cpp_class': cpp_name(interface),
        'gc_type': this_gc_type,
        'has_custom_legacy_call_as_function': has_extended_attribute_value(interface, 'Custom', 'LegacyCallAsFunction'),  # [Custom=LegacyCallAsFunction]
        'has_custom_to_v8': has_extended_attribute_value(interface, 'Custom', 'ToV8'),  # [Custom=ToV8]
        'has_custom_wrap': 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_node': inherits_interface(interface.name, 'Node'),
        'measure_as': v8_utilities.measure_as(interface),  # [MeasureAs]
        'parent_interface': parent_interface,
        'pass_cpp_type': cpp_template_type(
            cpp_ptr_type('PassRefPtr', 'RawPtr', this_gc_type),
            cpp_name(interface)),
        'reachable_node_function': reachable_node_function,
        'runtime_enabled_function': runtime_enabled_function_name(interface),  # [RuntimeEnabled]
        'set_wrapper_reference_to_list': set_wrapper_reference_to_list,
        'special_wrap_for': special_wrap_for,
        'v8_class': v8_utilities.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']
    if len(constructors) > 1:
        template_contents['constructor_overloads'] = generate_overloads(constructors)

    # [CustomConstructor]
    custom_constructors = [{  # Only needed for computing interface length
        'number_of_required_arguments':
            number_of_required_arguments(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/v8/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('bindings/v8/V8ObjectConstructor.h')
        includes.add('core/frame/LocalDOMWindow.h')

    template_contents.update({
        'any_type_attributes': any_type_attributes,
        'constructors': 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': has_extended_attribute_value(
            interface, 'ConstructorCallWith', 'Document'),  # [ConstructorCallWith=Document]
        'is_constructor_call_with_execution_context': 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 = [v8_attributes.generate_attribute(interface, attribute)
                  for attribute in interface.attributes]
    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 = [v8_methods.generate_method(interface, method)
               for method in interface.operations
               if method.name]  # Skip anonymous special operations (methods)
    generate_method_overloads(methods)

    per_context_enabled_methods = []
    custom_registration_methods = []
    method_configuration_methods = []

    for method in methods:
        # Skip all but one method in each set of overloaded methods.
        if 'overload_index' in method and 'overloads' not in method:
            continue

        if 'overloads' in method:
            overloads = method['overloads']
            per_context_enabled_function = overloads['per_context_enabled_function_all']
            runtime_enabled_function = overloads['runtime_enabled_function_all']
            has_custom_registration = overloads['has_custom_registration_all']
        else:
            per_context_enabled_function = method['per_context_enabled_function']
            runtime_enabled_function = method['runtime_enabled_function']
            has_custom_registration = method['has_custom_registration']

        if per_context_enabled_function:
            per_context_enabled_methods.append(method)
            continue
        if runtime_enabled_function or has_custom_registration:
            custom_registration_methods.append(method)
            continue
        method_configuration_methods.append(method)

    for method in methods:
        # The value of the Function object’s “length” property is a Number
        # determined as follows:
        # 1. Let S be the effective overload set for regular operations (if the
        # operation is a regular operation) or for static operations (if the
        # operation is a static operation) with identifier id on interface I and
        # with argument count 0.
        # 2. Return the length of the shortest argument list of the entries in S.
        # FIXME: This calculation doesn't take into account whether runtime
        # enabled overloads are actually enabled, so length may be incorrect.
        # E.g., [RuntimeEnabled=Foo] void f(); void f(long x);
        # should have length 1 if Foo is not enabled, but length 0 if it is.
        method['length'] = (method['overloads']['minarg'] if 'overloads' in method else
                            method['number_of_required_arguments'])

    template_contents.update({
        'custom_registration_methods': custom_registration_methods,
        'has_origin_safe_method_setter': any(
            method['is_check_security_for_frame'] and not method['is_read_only']
            for method in methods),
        'method_configuration_methods': method_configuration_methods,
        'per_context_enabled_methods': per_context_enabled_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