Ejemplo n.º 1
0
def attribute_context(interface, attribute, interfaces, component_info):
    """Creates a Jinja template context for an attribute of an interface.

    Args:
        interface: An interface which |attribute| belongs to
        attribute: An attribute to create the context for
        interfaces: A dict which maps an interface name to the definition
            which can be referred if needed
        component_info: A dict containing component wide information

    Returns:
        A Jinja template context for |attribute|
    """

    idl_type = attribute.idl_type
    base_idl_type = idl_type.base_type
    extended_attributes = attribute.extended_attributes

    idl_type.add_includes_for_type(extended_attributes)
    if idl_type.enum_values:
        includes.add('core/inspector/console_message.h')
        includes.add('platform/heap/heap.h')

    # [CheckSecurity]
    is_cross_origin = 'CrossOrigin' in extended_attributes
    is_check_security_for_receiver = (has_extended_attribute_value(
        interface, 'CheckSecurity', 'Receiver') and is_cross_origin)
    is_check_security_for_return_value = (has_extended_attribute_value(
        attribute, 'CheckSecurity', 'ReturnValue'))
    if is_check_security_for_receiver or is_check_security_for_return_value:
        includes.add('bindings/core/v8/binding_security.h')
    if is_check_security_for_return_value:
        includes.add('core/frame/web_feature.h')
        includes.add('platform/instrumentation/use_counter.h')
    # [CrossOrigin]
    if has_extended_attribute_value(attribute, 'CrossOrigin', 'Setter'):
        includes.add('platform/bindings/v8_cross_origin_callback_info.h')
    # [Constructor]
    # TODO(yukishiino): Constructors are much like methods although constructors
    # are not methods.  Constructors must be data-type properties, and we can
    # support them as a kind of methods.
    constructor_type = idl_type.constructor_type_name if is_constructor_attribute(
        attribute) else None
    # [CEReactions]
    is_ce_reactions = 'CEReactions' in extended_attributes
    if is_ce_reactions:
        includes.add('core/html/custom/ce_reactions_scope.h')
    # [CustomElementCallbacks], [Reflect]
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    is_reflect = 'Reflect' in extended_attributes
    # [ReflectOnly]
    reflect_only = extended_attribute_value_as_list(attribute, 'ReflectOnly')
    if reflect_only:
        reflect_only = map(
            lambda v: cpp_content_attribute_value_name(interface, v),
            reflect_only)
    if is_custom_element_callbacks or is_reflect:
        includes.add('core/html/custom/v0_custom_element_processing_stack.h')
    # [PerWorldBindings]
    if 'PerWorldBindings' in extended_attributes:
        assert idl_type.is_wrapper_type or 'LogActivity' in \
            extended_attributes, \
            '[PerWorldBindings] should only be used with wrapper types: %s.%s' % \
            (interface.name, attribute.name)
    # [SaveSameObject]
    is_save_same_object = ('SameObject' in attribute.extended_attributes and
                           'SaveSameObject' in attribute.extended_attributes)

    # [StringContext]
    if idl_type.has_string_context:
        includes.add('bindings/core/v8/generated_code_helper.h')

    # [CachedAccessor]
    is_cached_accessor = 'CachedAccessor' in extended_attributes

    # [LenientSetter]
    is_lenient_setter = 'LenientSetter' in extended_attributes

    # [CachedAttribute]
    cached_attribute_validation_method = extended_attributes.get(
        'CachedAttribute')

    keep_alive_for_gc = is_keep_alive_for_gc(interface, attribute)

    does_generate_getter = (not has_custom_getter(attribute)
                            and not constructor_type)
    does_generate_setter = (
        has_setter(interface, attribute)
        and not (has_custom_setter(attribute) or is_lenient_setter))

    use_private_property_in_getter = (does_generate_getter
                                      and (cached_attribute_validation_method
                                           or is_save_same_object
                                           or keep_alive_for_gc))
    use_private_property_in_setter = (does_generate_setter
                                      and cached_attribute_validation_method)
    private_property_is_shared_between_getter_and_setter = (
        use_private_property_in_getter and use_private_property_in_setter)

    does_use_private_property = (use_private_property_in_getter
                                 or use_private_property_in_setter
                                 or is_cached_accessor)
    if does_use_private_property:
        includes.add('platform/bindings/v8_private_property.h')

    # [LogActivity]
    if 'LogActivity' in extended_attributes:
        includes.add('platform/bindings/v8_per_context_data.h')

    # [DeprecateAs], [MeasureAs]
    deprecate_as = v8_utilities.deprecate_as(attribute)
    measure_as = v8_utilities.measure_as(attribute, interface)

    # [HighEntropy]
    high_entropy = v8_utilities.high_entropy(attribute)

    is_lazy_data_attribute = \
        (constructor_type and not (measure_as or deprecate_as)) or \
        (str(idl_type) == 'Window' and attribute.name in ('frames', 'self', 'window'))

    runtime_features = component_info['runtime_enabled_features']

    internal_name = cpp_encoded_property_name(attribute)

    cpp_type = idl_type.cpp_type
    if idl_type.is_explicit_nullable:
        cpp_type = v8_types.cpp_template_type('base::Optional', cpp_type)

    context = {
        # [ActivityLogging]
        'activity_logging_world_list_for_getter':
        v8_utilities.activity_logging_world_list(attribute, 'Getter'),
        # [ActivityLogging]
        'activity_logging_world_list_for_setter':
        v8_utilities.activity_logging_world_list(attribute, 'Setter'),
        # [ActivityLogging]
        'activity_logging_world_check':
        v8_utilities.activity_logging_world_check(attribute),
        'cached_accessor_name':
        'k%s%s' % (interface.name, attribute.name.capitalize()),
        'cached_attribute_validation_method':
        cached_attribute_validation_method,
        'camel_case_name':
        NameStyleConverter(internal_name).to_upper_camel_case(),
        'constructor_type':
        constructor_type,
        'context_enabled_feature_name':
        v8_utilities.context_enabled_feature_name(attribute),
        'cpp_name': cpp_name(attribute),
        'cpp_type': cpp_type,
        'cpp_type_initializer': idl_type.cpp_type_initializer,
        'deprecate_as': deprecate_as,
        'does_generate_getter': does_generate_getter,
        'does_generate_setter': does_generate_setter,
        'enum_type': idl_type.enum_type,
        'enum_values': idl_type.enum_values,
        # [Exposed]
        'exposed_test':
        v8_utilities.exposed(attribute, interface),
        'getter_has_no_side_effect':
        has_extended_attribute_value(attribute, 'Affects', 'Nothing'),
        'has_cross_origin_getter':
            has_extended_attribute_value(attribute, 'CrossOrigin', None) or
            has_extended_attribute_value(attribute, 'CrossOrigin', 'Getter'),
        'has_cross_origin_setter':
        has_extended_attribute_value(attribute, 'CrossOrigin', 'Setter'),
        'has_custom_getter': has_custom_getter(attribute),
        'has_custom_setter': has_custom_setter(attribute),
        'has_promise_type': idl_type.name == 'Promise',
        'has_setter': has_setter(interface, attribute),
        'high_entropy': high_entropy,
        'idl_type': str(idl_type),
        'is_cached_accessor': is_cached_accessor,
        'is_call_with_execution_context':
        has_extended_attribute_value(attribute, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_state':
        has_extended_attribute_value(attribute, 'CallWith', 'ScriptState'),
        'is_ce_reactions': is_ce_reactions,
        'is_check_security_for_receiver': is_check_security_for_receiver,
        'is_check_security_for_return_value':
        is_check_security_for_return_value,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        # TODO(yukishiino): Make all DOM attributes accessor-type properties.
        'is_data_type_property': is_data_type_property(interface, attribute),
        'is_getter_raises_exception':  # [RaisesException]
            'RaisesException' in extended_attributes and
            extended_attributes['RaisesException'] in (None, 'Getter'),
        'is_keep_alive_for_gc': keep_alive_for_gc,
        'is_lazy_data_attribute': is_lazy_data_attribute,
        'is_lenient_setter': is_lenient_setter,
        'is_lenient_this': 'LegacyLenientThis' in extended_attributes,
        'is_nullable': idl_type.is_nullable,
        'is_explicit_nullable': idl_type.is_explicit_nullable,
        'is_named_constructor': is_named_constructor_attribute(attribute),
        'is_partial_interface_member':
            'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_put_forwards': 'PutForwards' in extended_attributes,
        'is_read_only': attribute.is_read_only,
        'is_reflect': is_reflect,
        'is_replaceable': 'Replaceable' in attribute.extended_attributes,
        'is_save_same_object': is_save_same_object,
        'is_static': attribute.is_static,
        'is_url': 'URL' in extended_attributes,
        'is_unforgeable': is_unforgeable(attribute),
        'measure_as': measure_as,
        'name': attribute.name,
        'on_instance': v8_utilities.on_instance(interface, attribute),
        'on_interface': v8_utilities.on_interface(interface, attribute),
        'on_prototype': v8_utilities.on_prototype(interface, attribute),
        # [RuntimeEnabled] for origin trial
        'origin_trial_feature_name':
            v8_utilities.origin_trial_feature_name(attribute, runtime_features),
        'private_property_is_shared_between_getter_and_setter':
        private_property_is_shared_between_getter_and_setter,
        'property_attributes': property_attributes(interface, attribute),
        'reflect_empty': cpp_content_attribute_value_name(
            interface, extended_attributes.get('ReflectEmpty')),
        'reflect_invalid': cpp_content_attribute_value_name(
            interface, extended_attributes.get('ReflectInvalid', '')),
        'reflect_missing': cpp_content_attribute_value_name(
            interface, extended_attributes.get('ReflectMissing')),
        'reflect_only': reflect_only,
        # [RuntimeEnabled] if not in origin trial
        'runtime_enabled_feature_name':
        v8_utilities.runtime_enabled_feature_name(attribute, runtime_features),
        # [SecureContext]
        'secure_context_test': v8_utilities.secure_context(attribute, interface),
        'use_output_parameter_for_result': idl_type.use_output_parameter_for_result,
        'world_suffixes': (
            ['', 'ForMainWorld']
            if 'PerWorldBindings' in extended_attributes
            else ['']),  # [PerWorldBindings]
    }

    if not has_custom_getter(attribute):
        getter_context(interface, attribute, context)
    if not has_custom_setter(attribute) and has_setter(interface, attribute):
        setter_context(interface, attribute, interfaces, context)

    # [RuntimeCallStatsCounter]
    runtime_call_stats_context(interface, attribute, context)

    # [CrossOrigin] is incompatible with a number of other attributes, so check
    # for them here.
    if is_cross_origin:
        if context['has_cross_origin_setter'] and context['has_custom_setter']:
            raise Exception(
                '[CrossOrigin] and [Custom] are incompatible on the same setter: %s.%s',
                interface.name, attribute.name)
        if context['is_per_world_bindings']:
            raise Exception(
                '[CrossOrigin] and [PerWorldBindings] are incompatible: %s.%s',
                interface.name, attribute.name)
        if context['constructor_type']:
            raise Exception(
                '[CrossOrigin] cannot be used for constructors: %s.%s',
                interface.name, attribute.name)

    return context
Ejemplo n.º 2
0
def method_context(interface, method, is_visible=True):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

    if is_visible:
        idl_type.add_includes_for_type(extended_attributes)

    this_cpp_value = cpp_value(interface, method, len(arguments))

    is_call_with_script_arguments = has_extended_attribute_value(method, 'CallWith', 'ScriptArguments')
    if is_call_with_script_arguments:
        includes.update(['bindings/core/v8/ScriptCallStack.h',
                         'core/inspector/ScriptArguments.h'])
    is_call_with_script_state = has_extended_attribute_value(method, 'CallWith', 'ScriptState')
    is_call_with_this_value = has_extended_attribute_value(method, 'CallWith', 'ThisValue')
    if is_call_with_script_state or is_call_with_this_value:
        includes.add('platform/bindings/ScriptState.h')

    # [CheckSecurity]
    is_cross_origin = 'CrossOrigin' in extended_attributes
    is_check_security_for_receiver = (
        has_extended_attribute_value(interface, 'CheckSecurity', 'Receiver') and
        not is_cross_origin)
    is_check_security_for_return_value = (
        has_extended_attribute_value(method, 'CheckSecurity', 'ReturnValue'))
    if is_check_security_for_receiver or is_check_security_for_return_value:
        includes.add('bindings/core/v8/BindingSecurity.h')

    is_ce_reactions = 'CEReactions' in extended_attributes
    if is_ce_reactions:
        includes.add('core/html/custom/CEReactionsScope.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/html/custom/V0CustomElementProcessingStack.h')

    is_raises_exception = 'RaisesException' in extended_attributes
    is_custom_call_prologue = has_extended_attribute_value(method, 'Custom', 'CallPrologue')
    is_custom_call_epilogue = has_extended_attribute_value(method, 'Custom', 'CallEpilogue')
    is_post_message = 'PostMessage' in extended_attributes
    if is_post_message:
        includes.add('bindings/core/v8/serialization/SerializedScriptValueFactory.h')
        includes.add('bindings/core/v8/serialization/Transferables.h')
        includes.add('core/typed_arrays/DOMArrayBufferBase.h')
        includes.add('core/imagebitmap/ImageBitmap.h')

    if 'LenientThis' in extended_attributes:
        raise Exception('[LenientThis] is not supported for operations.')

    argument_contexts = [
        argument_context(interface, method, argument, index, is_visible=is_visible)
        for index, argument in enumerate(arguments)]

    return {
        'activity_logging_world_list': v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments': argument_contexts,
        'cpp_type': (v8_types.cpp_template_type('Nullable', idl_type.cpp_type)
                     if idl_type.is_explicit_nullable else idl_type.cpp_type),
        'cpp_value': this_cpp_value,
        'cpp_type_initializer': idl_type.cpp_type_initializer,
        'deprecate_as': v8_utilities.deprecate_as(method),  # [DeprecateAs]
        'do_not_test_new_object': 'DoNotTestNewObject' in extended_attributes,
        'exposed_test': v8_utilities.exposed(method, interface),  # [Exposed]
        'has_exception_state':
            is_raises_exception or
            is_check_security_for_receiver or
            any(argument for argument in arguments
                if (argument.idl_type.name == 'SerializedScriptValue' or
                    argument_conversion_needs_exception_state(method, argument))),
        'has_optional_argument_without_default_value':
            any(True for argument_context in argument_contexts
                if argument_context['is_optional_without_default_value']),
        'idl_type': idl_type.base_type,
        'is_call_with_execution_context': has_extended_attribute_value(method, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_arguments': is_call_with_script_arguments,
        'is_call_with_script_state': is_call_with_script_state,
        'is_call_with_this_value': is_call_with_this_value,
        'is_ce_reactions': is_ce_reactions,
        'is_check_security_for_receiver': is_check_security_for_receiver,
        'is_check_security_for_return_value': is_check_security_for_return_value,
        'is_cross_origin': 'CrossOrigin' in extended_attributes,
        'is_custom': 'Custom' in extended_attributes and
            not (is_custom_call_prologue or is_custom_call_epilogue),
        'is_custom_call_prologue': is_custom_call_prologue,
        'is_custom_call_epilogue': is_custom_call_epilogue,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        'is_explicit_nullable': idl_type.is_explicit_nullable,
        'is_new_object': 'NewObject' in extended_attributes,
        'is_partial_interface_member':
            'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_post_message': is_post_message,
        'is_raises_exception': is_raises_exception,
        'is_static': is_static,
        'is_unforgeable': is_unforgeable(interface, method),
        'is_variadic': arguments and arguments[-1].is_variadic,
        'measure_as': v8_utilities.measure_as(method, interface),  # [MeasureAs]
        'name': name,
        'number_of_arguments': len(arguments),
        'number_of_required_arguments': len([
            argument for argument in arguments
            if not (argument.is_optional or argument.is_variadic)]),
        'number_of_required_or_variadic_arguments': len([
            argument for argument in arguments
            if not argument.is_optional]),
        'on_instance': v8_utilities.on_instance(interface, method),
        'on_interface': v8_utilities.on_interface(interface, method),
        'on_prototype': v8_utilities.on_prototype(interface, method),
        'origin_trial_enabled_function': v8_utilities.origin_trial_enabled_function_name(method),  # [OriginTrialEnabled]
        'origin_trial_feature_name': v8_utilities.origin_trial_feature_name(method),  # [OriginTrialEnabled]
        'property_attributes': property_attributes(interface, method),
        'returns_promise': method.returns_promise,
        'runtime_call_stats': runtime_call_stats_context(interface, method),
        'runtime_enabled_feature_name': v8_utilities.runtime_enabled_feature_name(method),  # [RuntimeEnabled]
        'secure_context_test': v8_utilities.secure_context(method, interface),  # [SecureContext]
        'use_output_parameter_for_result': idl_type.use_output_parameter_for_result,
        'use_local_result': use_local_result(method),
        'v8_set_return_value': v8_set_return_value(interface.name, method, this_cpp_value),
        'v8_set_return_value_for_main_world': v8_set_return_value(interface.name, method, this_cpp_value, for_main_world=True),
        'visible': is_visible,
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings' in extended_attributes else [''],  # [PerWorldBindings],
    }
Ejemplo n.º 3
0
def attribute_context(interface, attribute, interfaces):
    """Creates a Jinja template context for an attribute of an interface.

    Args:
        interface: An interface which |attribute| belongs to
        attribute: An attribute to create the context for
        interfaces: A dict which maps an interface name to the definition
            which can be referred if needed

    Returns:
        A Jinja template context for |attribute|
    """

    idl_type = attribute.idl_type
    base_idl_type = idl_type.base_type
    extended_attributes = attribute.extended_attributes

    idl_type.add_includes_for_type(extended_attributes)
    if idl_type.enum_values:
        includes.add('core/inspector/ConsoleMessage.h')

    # [CheckSecurity]
    is_cross_origin = 'CrossOrigin' in extended_attributes
    is_check_security_for_receiver = (has_extended_attribute_value(
        interface, 'CheckSecurity', 'Receiver') and is_cross_origin)
    is_check_security_for_return_value = (has_extended_attribute_value(
        attribute, 'CheckSecurity', 'ReturnValue'))
    if is_check_security_for_receiver or is_check_security_for_return_value:
        includes.add('bindings/core/v8/BindingSecurity.h')
    # [CrossOrigin]
    if has_extended_attribute_value(attribute, 'CrossOrigin', 'Setter'):
        includes.add('bindings/core/v8/V8CrossOriginSetterInfo.h')
    # [Constructor]
    # TODO(yukishiino): Constructors are much like methods although constructors
    # are not methods.  Constructors must be data-type properties, and we can
    # support them as a kind of methods.
    constructor_type = idl_type.constructor_type_name if is_constructor_attribute(
        attribute) else None
    # [CEReactions]
    is_ce_reactions = 'CEReactions' in extended_attributes
    if is_ce_reactions:
        includes.add('core/dom/custom/CEReactionsScope.h')
    # [CustomElementCallbacks], [Reflect]
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    is_reflect = 'Reflect' in extended_attributes
    if is_custom_element_callbacks or is_reflect:
        includes.add('core/dom/custom/V0CustomElementProcessingStack.h')
    # [PerWorldBindings]
    if 'PerWorldBindings' in extended_attributes:
        assert idl_type.is_wrapper_type or 'LogActivity' in extended_attributes, '[PerWorldBindings] should only be used with wrapper types: %s.%s' % (
            interface.name, attribute.name)
    # [SaveSameObject]
    is_save_same_object = ('SameObject' in attribute.extended_attributes and
                           'SaveSameObject' in attribute.extended_attributes)
    if is_save_same_object:
        includes.add('bindings/core/v8/V8PrivateProperty.h')

    if (base_idl_type == 'EventHandler'
            and interface.name in ['Window', 'WorkerGlobalScope']
            and attribute.name == 'onerror'):
        includes.add('bindings/core/v8/V8ErrorHandler.h')

    cached_attribute_validation_method = extended_attributes.get(
        'CachedAttribute')
    keep_alive_for_gc = is_keep_alive_for_gc(interface, attribute)
    if cached_attribute_validation_method or keep_alive_for_gc:
        includes.add('bindings/core/v8/V8HiddenValue.h')

    # [CachedAccessor]
    is_cached_accessor = 'CachedAccessor' in extended_attributes
    if is_cached_accessor:
        includes.add('bindings/core/v8/V8PrivateProperty.h')

    context = {
        'access_control_list': access_control_list(interface, attribute),
        'activity_logging_world_list_for_getter': v8_utilities.activity_logging_world_list(attribute, 'Getter'),  # [ActivityLogging]
        'activity_logging_world_list_for_setter': v8_utilities.activity_logging_world_list(attribute, 'Setter'),  # [ActivityLogging]
        'activity_logging_world_check': v8_utilities.activity_logging_world_check(attribute),  # [ActivityLogging]
        'cached_attribute_validation_method': cached_attribute_validation_method,
        'constructor_type': constructor_type,
        'cpp_name': cpp_name(attribute),
        'cpp_type': idl_type.cpp_type,
        'cpp_type_initializer': idl_type.cpp_type_initializer,
        'deprecate_as': v8_utilities.deprecate_as(attribute),  # [DeprecateAs]
        'enum_type': idl_type.enum_type,
        'enum_values': idl_type.enum_values,
        'exposed_test': v8_utilities.exposed(attribute, interface),  # [Exposed]
        'has_cross_origin_getter':
            has_extended_attribute_value(attribute, 'CrossOrigin', None) or
            has_extended_attribute_value(attribute, 'CrossOrigin', 'Getter'),
        'has_cross_origin_setter': has_extended_attribute_value(attribute, 'CrossOrigin', 'Setter'),
        'has_custom_getter': has_custom_getter(attribute),
        'has_custom_setter': has_custom_setter(attribute),
        'has_setter': has_setter(interface, attribute),
        'idl_type': str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        'is_cached_accessor': is_cached_accessor,
        'is_call_with_execution_context': has_extended_attribute_value(attribute, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_state': has_extended_attribute_value(attribute, 'CallWith', 'ScriptState'),
        'is_ce_reactions': is_ce_reactions,
        'is_check_security_for_receiver': is_check_security_for_receiver,
        'is_check_security_for_return_value': is_check_security_for_return_value,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        # TODO(yukishiino): Make all DOM attributes accessor-type properties.
        'is_data_type_property': is_data_type_property(interface, attribute),
        'is_getter_raises_exception':  # [RaisesException]
            'RaisesException' in extended_attributes and
            extended_attributes['RaisesException'] in (None, 'Getter'),
        'is_keep_alive_for_gc': keep_alive_for_gc,
        'is_lenient_this': 'LenientThis' in extended_attributes,
        'is_nullable': idl_type.is_nullable,
        'is_explicit_nullable': idl_type.is_explicit_nullable,
        'is_partial_interface_member':
            'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_put_forwards': 'PutForwards' in extended_attributes,
        'is_read_only': attribute.is_read_only,
        'is_reflect': is_reflect,
        'is_replaceable': 'Replaceable' in attribute.extended_attributes,
        'is_save_same_object': is_save_same_object,
        'is_static': attribute.is_static,
        'is_url': 'URL' in extended_attributes,
        'is_unforgeable': is_unforgeable(interface, attribute),
        'on_instance': v8_utilities.on_instance(interface, attribute),
        'on_interface': v8_utilities.on_interface(interface, attribute),
        'on_prototype': v8_utilities.on_prototype(interface, attribute),
        'origin_trial_enabled_function': v8_utilities.origin_trial_enabled_function_name(attribute),  # [OriginTrialEnabled]
        'origin_trial_feature_name': v8_utilities.origin_trial_feature_name(attribute),  # [OriginTrialEnabled]
        'use_output_parameter_for_result': idl_type.use_output_parameter_for_result,
        'measure_as': v8_utilities.measure_as(attribute, interface),  # [MeasureAs]
        'name': attribute.name,
        'property_attributes': property_attributes(interface, attribute),
        'reflect_empty': extended_attributes.get('ReflectEmpty'),
        'reflect_invalid': extended_attributes.get('ReflectInvalid', ''),
        'reflect_missing': extended_attributes.get('ReflectMissing'),
        'reflect_only': extended_attribute_value_as_list(attribute, 'ReflectOnly'),
        'runtime_enabled_feature_name': v8_utilities.runtime_enabled_feature_name(attribute),  # [RuntimeEnabled]
        'secure_context_test': v8_utilities.secure_context(attribute, interface),  # [SecureContext]
        'cached_accessor_name': '%s%sCachedAccessor' % (interface.name, attribute.name.capitalize()),
        'world_suffixes': (
            ['', 'ForMainWorld']
            if 'PerWorldBindings' in extended_attributes
            else ['']),  # [PerWorldBindings]
    }

    if is_constructor_attribute(attribute):
        update_constructor_attribute_context(interface, attribute, context)
    if not has_custom_getter(attribute):
        getter_context(interface, attribute, context)
    if not has_custom_setter(attribute) and has_setter(interface, attribute):
        setter_context(interface, attribute, interfaces, context)

    # [CrossOrigin] is incompatible with a number of other attributes, so check
    # for them here.
    if is_cross_origin:
        if context['has_cross_origin_getter'] and context['has_custom_getter']:
            raise Exception(
                '[CrossOrigin] and [Custom] are incompatible on the same getter: %s.%s',
                interface.name, attribute.name)
        if context['has_cross_origin_setter'] and context['has_custom_setter']:
            raise Exception(
                '[CrossOrigin] and [Custom] are incompatible on the same setter: %s.%s',
                interface.name, attribute.name)
        if context['is_per_world_bindings']:
            raise Exception(
                '[CrossOrigin] and [PerWorldBindings] are incompatible: %s.%s',
                interface.name, attribute.name)
        if context['constructor_type']:
            raise Exception(
                '[CrossOrigin] cannot be used for constructors: %s.%s',
                interface.name, attribute.name)

    return context
Ejemplo n.º 4
0
def attribute_context(interface, attribute, interfaces):
    """Creates a Jinja template context for an attribute of an interface.

    Args:
        interface: An interface which |attribute| belongs to
        attribute: An attribute to create the context for
        interfaces: A dict which maps an interface name to the definition
            which can be referred if needed

    Returns:
        A Jinja template context for |attribute|
    """

    idl_type = attribute.idl_type
    base_idl_type = idl_type.base_type
    extended_attributes = attribute.extended_attributes

    idl_type.add_includes_for_type(extended_attributes)
    if idl_type.enum_values:
        includes.add('core/inspector/ConsoleMessage.h')

    # [CheckSecurity]
    is_cross_origin = 'CrossOrigin' in extended_attributes
    is_check_security_for_receiver = (
        has_extended_attribute_value(interface, 'CheckSecurity', 'Receiver') and
        is_cross_origin)
    is_check_security_for_return_value = (
        has_extended_attribute_value(attribute, 'CheckSecurity', 'ReturnValue'))
    if is_check_security_for_receiver or is_check_security_for_return_value:
        includes.add('bindings/core/v8/BindingSecurity.h')
    # [CrossOrigin]
    if has_extended_attribute_value(attribute, 'CrossOrigin', 'Setter'):
        includes.add('bindings/core/v8/V8CrossOriginSetterInfo.h')
    # [Constructor]
    # TODO(yukishiino): Constructors are much like methods although constructors
    # are not methods.  Constructors must be data-type properties, and we can
    # support them as a kind of methods.
    constructor_type = idl_type.constructor_type_name if is_constructor_attribute(attribute) else None
    # [CEReactions]
    is_ce_reactions = 'CEReactions' in extended_attributes
    if is_ce_reactions:
        includes.add('core/dom/custom/CEReactionsScope.h')
    # [CustomElementCallbacks], [Reflect]
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    is_reflect = 'Reflect' in extended_attributes
    if is_custom_element_callbacks or is_reflect:
        includes.add('core/dom/custom/V0CustomElementProcessingStack.h')
    # [ImplementedInPrivateScript]
    is_implemented_in_private_script = 'ImplementedInPrivateScript' in extended_attributes
    if is_implemented_in_private_script:
        includes.add('bindings/core/v8/PrivateScriptRunner.h')
        includes.add('core/frame/LocalFrame.h')
        includes.add('platform/ScriptForbiddenScope.h')
    # [OnlyExposedToPrivateScript]
    is_only_exposed_to_private_script = 'OnlyExposedToPrivateScript' in extended_attributes
    # [PerWorldBindings]
    if 'PerWorldBindings' in extended_attributes:
        assert idl_type.is_wrapper_type or 'LogActivity' in extended_attributes, '[PerWorldBindings] should only be used with wrapper types: %s.%s' % (interface.name, attribute.name)
    # [SaveSameObject]
    is_save_same_object = (
        'SameObject' in attribute.extended_attributes and
        'SaveSameObject' in attribute.extended_attributes)
    if is_save_same_object:
        includes.add('bindings/core/v8/V8PrivateProperty.h')

    if (base_idl_type == 'EventHandler' and
            interface.name in ['Window', 'WorkerGlobalScope'] and
            attribute.name == 'onerror'):
        includes.add('bindings/core/v8/V8ErrorHandler.h')

    cached_attribute_validation_method = extended_attributes.get('CachedAttribute')
    keep_alive_for_gc = is_keep_alive_for_gc(interface, attribute)
    if cached_attribute_validation_method or keep_alive_for_gc:
        includes.add('bindings/core/v8/V8HiddenValue.h')

    # [CachedAccessor]
    is_cached_accessor = 'CachedAccessor' in extended_attributes
    if is_cached_accessor:
        includes.add('bindings/core/v8/V8PrivateProperty.h')

    context = {
        'access_control_list': access_control_list(interface, attribute),
        'activity_logging_world_list_for_getter': v8_utilities.activity_logging_world_list(attribute, 'Getter'),  # [ActivityLogging]
        'activity_logging_world_list_for_setter': v8_utilities.activity_logging_world_list(attribute, 'Setter'),  # [ActivityLogging]
        'activity_logging_world_check': v8_utilities.activity_logging_world_check(attribute),  # [ActivityLogging]
        'argument_cpp_type': idl_type.cpp_type_args(used_as_rvalue_type=True),
        'cached_attribute_validation_method': cached_attribute_validation_method,
        'constructor_type': constructor_type,
        'cpp_name': cpp_name(attribute),
        'cpp_type': idl_type.cpp_type,
        'cpp_type_initializer': idl_type.cpp_type_initializer,
        'deprecate_as': v8_utilities.deprecate_as(attribute),  # [DeprecateAs]
        'enum_type': idl_type.enum_type,
        'enum_values': idl_type.enum_values,
        'exposed_test': v8_utilities.exposed(attribute, interface),  # [Exposed]
        'has_cross_origin_getter':
            has_extended_attribute_value(attribute, 'CrossOrigin', None) or
            has_extended_attribute_value(attribute, 'CrossOrigin', 'Getter'),
        'has_cross_origin_setter': has_extended_attribute_value(attribute, 'CrossOrigin', 'Setter'),
        'has_custom_getter': has_custom_getter(attribute),
        'has_custom_setter': has_custom_setter(attribute),
        'has_setter': has_setter(interface, attribute),
        'idl_type': str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        'is_cached_accessor': is_cached_accessor,
        'is_call_with_execution_context': has_extended_attribute_value(attribute, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_state': has_extended_attribute_value(attribute, 'CallWith', 'ScriptState'),
        'is_ce_reactions': is_ce_reactions,
        'is_check_security_for_receiver': is_check_security_for_receiver,
        'is_check_security_for_return_value': is_check_security_for_return_value,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        # TODO(yukishiino): Make all DOM attributes accessor-type properties.
        'is_data_type_property': is_data_type_property(interface, attribute),
        'is_getter_raises_exception':  # [RaisesException]
            'RaisesException' in extended_attributes and
            extended_attributes['RaisesException'] in (None, 'Getter'),
        'is_implemented_in_private_script': is_implemented_in_private_script,
        'is_keep_alive_for_gc': keep_alive_for_gc,
        'is_lenient_this': 'LenientThis' in extended_attributes,
        'is_nullable': idl_type.is_nullable,
        'is_explicit_nullable': idl_type.is_explicit_nullable,
        'is_partial_interface_member':
            'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_put_forwards': 'PutForwards' in extended_attributes,
        'is_read_only': attribute.is_read_only,
        'is_reflect': is_reflect,
        'is_replaceable': 'Replaceable' in attribute.extended_attributes,
        'is_save_same_object': is_save_same_object,
        'is_static': attribute.is_static,
        'is_url': 'URL' in extended_attributes,
        'is_unforgeable': is_unforgeable(interface, attribute),
        'on_instance': v8_utilities.on_instance(interface, attribute),
        'on_interface': v8_utilities.on_interface(interface, attribute),
        'on_prototype': v8_utilities.on_prototype(interface, attribute),
        'origin_trial_enabled_function': v8_utilities.origin_trial_enabled_function_name(attribute),  # [OriginTrialEnabled]
        'origin_trial_feature_name': v8_utilities.origin_trial_feature_name(attribute),  # [OriginTrialEnabled]
        'use_output_parameter_for_result': idl_type.use_output_parameter_for_result,
        'measure_as': v8_utilities.measure_as(attribute, interface),  # [MeasureAs]
        'name': attribute.name,
        'only_exposed_to_private_script': is_only_exposed_to_private_script,
        'private_script_v8_value_to_local_cpp_value': idl_type.v8_value_to_local_cpp_value(
            extended_attributes, 'v8Value', 'cppValue', bailout_return_value='false', isolate='scriptState->isolate()'),
        'property_attributes': property_attributes(interface, attribute),
        'reflect_empty': extended_attributes.get('ReflectEmpty'),
        'reflect_invalid': extended_attributes.get('ReflectInvalid', ''),
        'reflect_missing': extended_attributes.get('ReflectMissing'),
        'reflect_only': extended_attribute_value_as_list(attribute, 'ReflectOnly'),
        'runtime_enabled_function': v8_utilities.runtime_enabled_function_name(attribute),  # [RuntimeEnabled]
        'runtime_feature_name': v8_utilities.runtime_feature_name(attribute),  # [RuntimeEnabled]
        'secure_context_test': v8_utilities.secure_context(attribute, interface),  # [SecureContext]
        'should_be_exposed_to_script': not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        'cached_accessor_name': '%s%sCachedAccessor' % (interface.name, attribute.name.capitalize()),
        'world_suffixes': (
            ['', 'ForMainWorld']
            if 'PerWorldBindings' in extended_attributes
            else ['']),  # [PerWorldBindings]
    }

    if is_constructor_attribute(attribute):
        update_constructor_attribute_context(interface, attribute, context)
    if not has_custom_getter(attribute):
        getter_context(interface, attribute, context)
    if not has_custom_setter(attribute) and has_setter(interface, attribute):
        setter_context(interface, attribute, interfaces, context)

    # [CrossOrigin] is incompatible with a number of other attributes, so check
    # for them here.
    if is_cross_origin:
        if context['has_cross_origin_getter'] and context['has_custom_getter']:
            raise Exception('[CrossOrigin] and [Custom] are incompatible on the same getter: %s.%s', interface.name, attribute.name)
        if context['has_cross_origin_setter'] and context['has_custom_setter']:
            raise Exception('[CrossOrigin] and [Custom] are incompatible on the same setter: %s.%s', interface.name, attribute.name)
        if context['is_per_world_bindings']:
            raise Exception('[CrossOrigin] and [PerWorldBindings] are incompatible: %s.%s', interface.name, attribute.name)
        if context['constructor_type']:
            raise Exception('[CrossOrigin] cannot be used for constructors: %s.%s', interface.name, attribute.name)
        if not context['should_be_exposed_to_script']:
            raise Exception('[CrossOrigin] attributes must be exposed to script: %s.%s', interface.name, attribute.name)

    return context
Ejemplo n.º 5
0
def method_context(interface, method, is_visible=True):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

    if is_visible:
        idl_type.add_includes_for_type(extended_attributes)

    this_cpp_value = cpp_value(interface, method, len(arguments))

    is_implemented_in_private_script = 'ImplementedInPrivateScript' in extended_attributes
    if is_implemented_in_private_script:
        includes.add('bindings/core/v8/PrivateScriptRunner.h')
        includes.add('core/frame/LocalFrame.h')
        includes.add('platform/ScriptForbiddenScope.h')

    # [OnlyExposedToPrivateScript]
    is_only_exposed_to_private_script = 'OnlyExposedToPrivateScript' in extended_attributes

    is_call_with_script_arguments = has_extended_attribute_value(
        method, 'CallWith', 'ScriptArguments')
    if is_call_with_script_arguments:
        includes.update([
            'bindings/core/v8/ScriptCallStack.h',
            'core/inspector/ScriptArguments.h'
        ])
    is_call_with_script_state = has_extended_attribute_value(
        method, 'CallWith', 'ScriptState')
    is_call_with_this_value = has_extended_attribute_value(
        method, 'CallWith', 'ThisValue')
    if is_call_with_script_state or is_call_with_this_value:
        includes.add('bindings/core/v8/ScriptState.h')

    # [CheckSecurity]
    is_do_not_check_security = 'DoNotCheckSecurity' in extended_attributes
    is_check_security_for_receiver = (has_extended_attribute_value(
        interface, 'CheckSecurity', 'Receiver')
                                      and not is_do_not_check_security)
    is_check_security_for_return_value = (has_extended_attribute_value(
        method, 'CheckSecurity', 'ReturnValue'))
    if is_check_security_for_receiver or is_check_security_for_return_value:
        includes.add('bindings/core/v8/BindingSecurity.h')

    is_ce_reactions = 'CEReactions' in extended_attributes
    if is_ce_reactions:
        includes.add('core/dom/custom/CEReactionsScope.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/dom/custom/V0CustomElementProcessingStack.h')

    is_raises_exception = 'RaisesException' in extended_attributes
    is_custom_call_prologue = has_extended_attribute_value(
        method, 'Custom', 'CallPrologue')
    is_custom_call_epilogue = has_extended_attribute_value(
        method, 'Custom', 'CallEpilogue')
    is_post_message = 'PostMessage' in extended_attributes
    if is_post_message:
        includes.add('bindings/core/v8/SerializedScriptValueFactory.h')
        includes.add('bindings/core/v8/Transferables.h')
        includes.add('core/dom/DOMArrayBufferBase.h')

    if 'LenientThis' in extended_attributes:
        raise Exception('[LenientThis] is not supported for operations.')

    argument_contexts = [
        argument_context(interface,
                         method,
                         argument,
                         index,
                         is_visible=is_visible)
        for index, argument in enumerate(arguments)
    ]

    return {
        'activity_logging_world_list':
        v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments':
        argument_contexts,
        'argument_declarations_for_private_script':
        argument_declarations_for_private_script(interface, method),
        'cpp_type': (v8_types.cpp_template_type('Nullable', idl_type.cpp_type)
                     if idl_type.is_explicit_nullable else idl_type.cpp_type),
        'cpp_value':
        this_cpp_value,
        'cpp_type_initializer':
        idl_type.cpp_type_initializer,
        'custom_registration_extended_attributes':
        CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES.intersection(
            extended_attributes.iterkeys()),
        'deprecate_as':
        v8_utilities.deprecate_as(method),  # [DeprecateAs]
        'do_not_test_new_object':
        'DoNotTestNewObject' in extended_attributes,
        'exposed_test':
        v8_utilities.exposed(method, interface),  # [Exposed]
        # TODO(yukishiino): Retire has_custom_registration flag.  Should be
        # replaced with V8DOMConfiguration::PropertyLocationConfiguration.
        'has_custom_registration':
        v8_utilities.has_extended_attribute(
            method, CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES),
        'has_exception_state':
        is_raises_exception or is_check_security_for_receiver
        or any(argument for argument in arguments if (
            argument.idl_type.name == 'SerializedScriptValue'
            or argument_conversion_needs_exception_state(method, argument))),
        'has_optional_argument_without_default_value':
        any(True for argument_context in argument_contexts
            if argument_context['is_optional_without_default_value']),
        'idl_type':
        idl_type.base_type,
        'is_call_with_execution_context':
        has_extended_attribute_value(method, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_arguments':
        is_call_with_script_arguments,
        'is_call_with_script_state':
        is_call_with_script_state,
        'is_call_with_this_value':
        is_call_with_this_value,
        'is_ce_reactions':
        is_ce_reactions,
        'is_check_security_for_receiver':
        is_check_security_for_receiver,
        'is_check_security_for_return_value':
        is_check_security_for_return_value,
        'is_custom':
        'Custom' in extended_attributes
        and not (is_custom_call_prologue or is_custom_call_epilogue),
        'is_custom_call_prologue':
        is_custom_call_prologue,
        'is_custom_call_epilogue':
        is_custom_call_epilogue,
        'is_custom_element_callbacks':
        is_custom_element_callbacks,
        'is_do_not_check_security':
        is_do_not_check_security,
        'is_explicit_nullable':
        idl_type.is_explicit_nullable,
        'is_implemented_in_private_script':
        is_implemented_in_private_script,
        'is_new_object':
        'NewObject' in extended_attributes,
        'is_partial_interface_member':
        'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings':
        'PerWorldBindings' in extended_attributes,
        'is_post_message':
        is_post_message,
        'is_raises_exception':
        is_raises_exception,
        'is_static':
        is_static,
        'is_unforgeable':
        is_unforgeable(interface, method),
        'is_variadic':
        arguments and arguments[-1].is_variadic,
        'measure_as':
        v8_utilities.measure_as(method, interface),  # [MeasureAs]
        'name':
        name,
        'number_of_arguments':
        len(arguments),
        'number_of_required_arguments':
        len([
            argument for argument in arguments
            if not (argument.is_optional or argument.is_variadic)
        ]),
        'number_of_required_or_variadic_arguments':
        len([argument for argument in arguments if not argument.is_optional]),
        'on_instance':
        v8_utilities.on_instance(interface, method),
        'on_interface':
        v8_utilities.on_interface(interface, method),
        'on_prototype':
        v8_utilities.on_prototype(interface, method),
        'only_exposed_to_private_script':
        is_only_exposed_to_private_script,
        'origin_trial_enabled_function':
        v8_utilities.origin_trial_enabled_function_name(
            method),  # [OriginTrialEnabled]
        'origin_trial_feature_name':
        v8_utilities.origin_trial_feature_name(method),  # [OriginTrialEnabled]
        'private_script_v8_value_to_local_cpp_value':
        idl_type.v8_value_to_local_cpp_value(extended_attributes,
                                             'v8Value',
                                             'cppValue',
                                             isolate='scriptState->isolate()',
                                             bailout_return_value='false'),
        'property_attributes':
        property_attributes(interface, method),
        'returns_promise':
        method.returns_promise,
        'runtime_enabled_function':
        v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
        'secure_context_test':
        v8_utilities.secure_context(method, interface),  # [SecureContext]
        'should_be_exposed_to_script':
        not (is_implemented_in_private_script
             and is_only_exposed_to_private_script),
        'use_output_parameter_for_result':
        idl_type.use_output_parameter_for_result,
        'use_local_result':
        use_local_result(method),
        'v8_set_return_value':
        v8_set_return_value(interface.name, method, this_cpp_value),
        'v8_set_return_value_for_main_world':
        v8_set_return_value(interface.name,
                            method,
                            this_cpp_value,
                            for_main_world=True),
        'visible':
        is_visible,
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings'
        in extended_attributes else [''],  # [PerWorldBindings],
    }
Ejemplo n.º 6
0
def method_context(interface, method, component_info, is_visible=True):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

    if is_visible:
        idl_type.add_includes_for_type(extended_attributes)

    this_cpp_value = cpp_value(interface, method, len(arguments))

    is_call_with_script_state = has_extended_attribute_value(
        method, 'CallWith', 'ScriptState')
    is_call_with_this_value = has_extended_attribute_value(
        method, 'CallWith', 'ThisValue')
    if is_call_with_script_state or is_call_with_this_value:
        includes.add('platform/bindings/script_state.h')

    # [CheckSecurity]
    is_cross_origin = 'CrossOrigin' in extended_attributes
    is_check_security_for_receiver = (has_extended_attribute_value(
        interface, 'CheckSecurity', 'Receiver') and not is_cross_origin)
    is_check_security_for_return_value = (has_extended_attribute_value(
        method, 'CheckSecurity', 'ReturnValue'))
    if is_check_security_for_receiver or is_check_security_for_return_value:
        includes.add('bindings/core/v8/binding_security.h')
    if is_check_security_for_return_value:
        includes.add('core/frame/web_feature.h')
        includes.add('platform/instrumentation/use_counter.h')

    is_ce_reactions = 'CEReactions' in extended_attributes
    if is_ce_reactions:
        includes.add('core/html/custom/ce_reactions_scope.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/html/custom/v0_custom_element_processing_stack.h')

    is_raises_exception = 'RaisesException' in extended_attributes

    if 'LenientThis' in extended_attributes:
        raise Exception('[LenientThis] is not supported for operations.')

    if has_extended_attribute_value(method, 'Affects', 'Nothing'):
        side_effect_type = 'V8DOMConfiguration::kHasNoSideEffect'
    else:
        side_effect_type = 'V8DOMConfiguration::kHasSideEffect'

    # [LogActivity]
    if 'LogActivity' in extended_attributes:
        includes.add('platform/bindings/v8_per_context_data.h')

    argument_contexts = [
        argument_context(interface,
                         method,
                         argument,
                         index,
                         is_visible=is_visible)
        for index, argument in enumerate(arguments)
    ]

    runtime_features = component_info['runtime_enabled_features']

    return {
        'activity_logging_world_list':
        v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments':
        argument_contexts,
        'camel_case_name':
        NameStyleConverter(name).to_upper_camel_case(),
        'cpp_type':
        (v8_types.cpp_template_type('base::Optional', idl_type.cpp_type)
         if idl_type.is_explicit_nullable else v8_types.cpp_type(
             idl_type, extended_attributes=extended_attributes)),
        'cpp_value':
        this_cpp_value,
        'cpp_type_initializer':
        idl_type.cpp_type_initializer,
        'high_entropy':
        v8_utilities.high_entropy(method),  # [HighEntropy]
        'deprecate_as':
        v8_utilities.deprecate_as(method),  # [DeprecateAs]
        'do_not_test_new_object':
        'DoNotTestNewObject' in extended_attributes,
        'exposed_test':
        v8_utilities.exposed(method, interface),  # [Exposed]
        'has_exception_state':
        is_raises_exception or is_check_security_for_receiver
        or any(argument for argument in arguments
               if argument_conversion_needs_exception_state(method, argument)),
        'has_optional_argument_without_default_value':
        any(True for argument_context in argument_contexts
            if argument_context['is_optional_without_default_value']),
        'idl_type':
        idl_type.base_type,
        'is_call_with_execution_context':
        has_extended_attribute_value(method, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_state':
        is_call_with_script_state,
        'is_call_with_this_value':
        is_call_with_this_value,
        'is_ce_reactions':
        is_ce_reactions,
        'is_check_security_for_receiver':
        is_check_security_for_receiver,
        'is_check_security_for_return_value':
        is_check_security_for_return_value,
        'is_cross_origin':
        'CrossOrigin' in extended_attributes,
        'is_custom':
        'Custom' in extended_attributes,
        'is_custom_element_callbacks':
        is_custom_element_callbacks,
        'is_explicit_nullable':
        idl_type.is_explicit_nullable,
        'is_new_object':
        'NewObject' in extended_attributes,
        'is_partial_interface_member':
        'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings':
        'PerWorldBindings' in extended_attributes,
        'is_raises_exception':
        is_raises_exception,
        'is_static':
        is_static,
        'is_unforgeable':
        is_unforgeable(method),
        'is_variadic':
        arguments and arguments[-1].is_variadic,
        'measure_as':
        v8_utilities.measure_as(method, interface),  # [MeasureAs]
        'name':
        name,
        'number_of_arguments':
        len(arguments),
        'number_of_required_arguments':
        len([
            argument for argument in arguments
            if not (argument.is_optional or argument.is_variadic)
        ]),
        'number_of_required_or_variadic_arguments':
        len([argument for argument in arguments if not argument.is_optional]),
        'on_instance':
        v8_utilities.on_instance(interface, method),
        'on_interface':
        v8_utilities.on_interface(interface, method),
        'on_prototype':
        v8_utilities.on_prototype(interface, method),
        # [RuntimeEnabled] for origin trial
        'origin_trial_feature_name':
        v8_utilities.origin_trial_feature_name(method, runtime_features),
        'property_attributes':
        property_attributes(interface, method),
        'returns_promise':
        method.returns_promise,
        'runtime_call_stats':
        runtime_call_stats_context(interface, method),
        # [RuntimeEnabled] if not in origin trial
        'runtime_enabled_feature_name':
        v8_utilities.runtime_enabled_feature_name(method, runtime_features),
        # [SecureContext]
        'secure_context_test':
        v8_utilities.secure_context(method, interface),
        # [Affects]
        'side_effect_type':
        side_effect_type,
        'snake_case_name':
        NameStyleConverter(name).to_snake_case(),
        'use_output_parameter_for_result':
        idl_type.use_output_parameter_for_result,
        'use_local_result':
        use_local_result(method),
        'v8_set_return_value':
        v8_set_return_value(interface.name, method, this_cpp_value),
        'v8_set_return_value_for_main_world':
        v8_set_return_value(interface.name,
                            method,
                            this_cpp_value,
                            for_main_world=True),
        'visible':
        is_visible,
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings'
        in extended_attributes else [''],  # [PerWorldBindings],
    }
Ejemplo n.º 7
0
def method_context(interface, method, is_visible=True):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

    if is_visible:
        idl_type.add_includes_for_type(extended_attributes)

    this_cpp_value = cpp_value(interface, method, len(arguments))

    is_call_with_script_arguments = has_extended_attribute_value(method, 'CallWith', 'ScriptArguments')
    if is_call_with_script_arguments:
        includes.update(['bindings/core/v8/ScriptCallStack.h',
                         'core/inspector/ScriptArguments.h'])
    is_call_with_script_state = has_extended_attribute_value(method, 'CallWith', 'ScriptState')
    is_call_with_this_value = has_extended_attribute_value(method, 'CallWith', 'ThisValue')
    if is_call_with_script_state or is_call_with_this_value:
        includes.add('platform/bindings/ScriptState.h')

    # [CheckSecurity]
    is_cross_origin = 'CrossOrigin' in extended_attributes
    is_check_security_for_receiver = (
        has_extended_attribute_value(interface, 'CheckSecurity', 'Receiver') and
        not is_cross_origin)
    is_check_security_for_return_value = (
        has_extended_attribute_value(method, 'CheckSecurity', 'ReturnValue'))
    if is_check_security_for_receiver or is_check_security_for_return_value:
        includes.add('bindings/core/v8/BindingSecurity.h')

    is_ce_reactions = 'CEReactions' in extended_attributes
    if is_ce_reactions:
        includes.add('core/html/custom/CEReactionsScope.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/html/custom/V0CustomElementProcessingStack.h')

    is_raises_exception = 'RaisesException' in extended_attributes
    is_custom_call_prologue = has_extended_attribute_value(method, 'Custom', 'CallPrologue')
    is_custom_call_epilogue = has_extended_attribute_value(method, 'Custom', 'CallEpilogue')
    is_post_message = 'PostMessage' in extended_attributes
    if is_post_message:
        includes.add('bindings/core/v8/serialization/SerializedScriptValueFactory.h')
        includes.add('bindings/core/v8/serialization/Transferables.h')
        includes.add('core/typed_arrays/DOMArrayBufferBase.h')
        includes.add('core/imagebitmap/ImageBitmap.h')

    if 'LenientThis' in extended_attributes:
        raise Exception('[LenientThis] is not supported for operations.')

    argument_contexts = [
        argument_context(interface, method, argument, index, is_visible=is_visible)
        for index, argument in enumerate(arguments)]

    return {
        'activity_logging_world_list': v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments': argument_contexts,
        'cpp_type': (v8_types.cpp_template_type('Nullable', idl_type.cpp_type)
                     if idl_type.is_explicit_nullable else idl_type.cpp_type),
        'cpp_value': this_cpp_value,
        'cpp_type_initializer': idl_type.cpp_type_initializer,
        'deprecate_as': v8_utilities.deprecate_as(method),  # [DeprecateAs]
        'do_not_test_new_object': 'DoNotTestNewObject' in extended_attributes,
        'exposed_test': v8_utilities.exposed(method, interface),  # [Exposed]
        'has_exception_state':
            is_raises_exception or
            is_check_security_for_receiver or
            any(argument for argument in arguments
                if (argument.idl_type.name == 'SerializedScriptValue' or
                    argument_conversion_needs_exception_state(method, argument))),
        'has_optional_argument_without_default_value':
            any(True for argument_context in argument_contexts
                if argument_context['is_optional_without_default_value']),
        'idl_type': idl_type.base_type,
        'is_call_with_execution_context': has_extended_attribute_value(method, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_arguments': is_call_with_script_arguments,
        'is_call_with_script_state': is_call_with_script_state,
        'is_call_with_this_value': is_call_with_this_value,
        'is_ce_reactions': is_ce_reactions,
        'is_check_security_for_receiver': is_check_security_for_receiver,
        'is_check_security_for_return_value': is_check_security_for_return_value,
        'is_cross_origin': 'CrossOrigin' in extended_attributes,
        'is_custom': 'Custom' in extended_attributes and
            not (is_custom_call_prologue or is_custom_call_epilogue),
        'is_custom_call_prologue': is_custom_call_prologue,
        'is_custom_call_epilogue': is_custom_call_epilogue,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        'is_explicit_nullable': idl_type.is_explicit_nullable,
        'is_new_object': 'NewObject' in extended_attributes,
        'is_partial_interface_member':
            'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_post_message': is_post_message,
        'is_raises_exception': is_raises_exception,
        'is_static': is_static,
        'is_unforgeable': is_unforgeable(interface, method),
        'is_variadic': arguments and arguments[-1].is_variadic,
        'measure_as': v8_utilities.measure_as(method, interface),  # [MeasureAs]
        'name': name,
        'number_of_arguments': len(arguments),
        'number_of_required_arguments': len([
            argument for argument in arguments
            if not (argument.is_optional or argument.is_variadic)]),
        'number_of_required_or_variadic_arguments': len([
            argument for argument in arguments
            if not argument.is_optional]),
        'on_instance': v8_utilities.on_instance(interface, method),
        'on_interface': v8_utilities.on_interface(interface, method),
        'on_prototype': v8_utilities.on_prototype(interface, method),
        'origin_trial_enabled_function': v8_utilities.origin_trial_enabled_function_name(method),  # [OriginTrialEnabled]
        'origin_trial_feature_name': v8_utilities.origin_trial_feature_name(method),  # [OriginTrialEnabled]
        'property_attributes': property_attributes(interface, method),
        'returns_promise': method.returns_promise,
        'runtime_call_stats': runtime_call_stats_context(interface, method),
        'runtime_enabled_feature_name': v8_utilities.runtime_enabled_feature_name(method),  # [RuntimeEnabled]
        'secure_context_test': v8_utilities.secure_context(method, interface),  # [SecureContext]
        'use_output_parameter_for_result': idl_type.use_output_parameter_for_result,
        'use_local_result': use_local_result(method),
        'v8_set_return_value': v8_set_return_value(interface.name, method, this_cpp_value),
        'v8_set_return_value_for_main_world': v8_set_return_value(interface.name, method, this_cpp_value, for_main_world=True),
        'visible': is_visible,
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings' in extended_attributes else [''],  # [PerWorldBindings],
    }
Ejemplo n.º 8
0
def method_context(interface, method, is_visible=True):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

    if is_visible:
        idl_type.add_includes_for_type(extended_attributes)

    this_cpp_value = cpp_value(interface, method, len(arguments))

    is_implemented_in_private_script = 'ImplementedInPrivateScript' in extended_attributes
    if is_implemented_in_private_script:
        includes.add('bindings/core/v8/PrivateScriptRunner.h')
        includes.add('core/frame/LocalFrame.h')
        includes.add('platform/ScriptForbiddenScope.h')

    # [OnlyExposedToPrivateScript]
    is_only_exposed_to_private_script = 'OnlyExposedToPrivateScript' in extended_attributes

    is_call_with_script_arguments = has_extended_attribute_value(method, 'CallWith', 'ScriptArguments')
    if is_call_with_script_arguments:
        includes.update(['bindings/core/v8/ScriptCallStack.h',
                         'core/inspector/ScriptArguments.h'])
    is_call_with_script_state = has_extended_attribute_value(method, 'CallWith', 'ScriptState')
    is_call_with_this_value = has_extended_attribute_value(method, 'CallWith', 'ThisValue')
    if is_call_with_script_state or is_call_with_this_value:
        includes.add('bindings/core/v8/ScriptState.h')

    # [CheckSecurity]
    is_do_not_check_security = 'DoNotCheckSecurity' in extended_attributes
    is_check_security_for_receiver = (
        has_extended_attribute_value(interface, 'CheckSecurity', 'Receiver') and
        not is_do_not_check_security)
    is_check_security_for_return_value = (
        has_extended_attribute_value(method, 'CheckSecurity', 'ReturnValue'))
    if is_check_security_for_receiver or is_check_security_for_return_value:
        includes.add('bindings/core/v8/BindingSecurity.h')

    is_ce_reactions = 'CEReactions' in extended_attributes
    if is_ce_reactions:
        includes.add('core/dom/custom/CEReactionsScope.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/dom/custom/V0CustomElementProcessingStack.h')

    is_raises_exception = 'RaisesException' in extended_attributes
    is_custom_call_prologue = has_extended_attribute_value(method, 'Custom', 'CallPrologue')
    is_custom_call_epilogue = has_extended_attribute_value(method, 'Custom', 'CallEpilogue')
    is_post_message = 'PostMessage' in extended_attributes
    if is_post_message:
        includes.add('bindings/core/v8/SerializedScriptValueFactory.h')
        includes.add('bindings/core/v8/Transferables.h')
        includes.add('core/dom/DOMArrayBufferBase.h')

    if 'LenientThis' in extended_attributes:
        raise Exception('[LenientThis] is not supported for operations.')

    argument_contexts = [
        argument_context(interface, method, argument, index, is_visible=is_visible)
        for index, argument in enumerate(arguments)]

    return {
        'activity_logging_world_list': v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments': argument_contexts,
        'argument_declarations_for_private_script':
            argument_declarations_for_private_script(interface, method),
        'cpp_type': (v8_types.cpp_template_type('Nullable', idl_type.cpp_type)
                     if idl_type.is_explicit_nullable else idl_type.cpp_type),
        'cpp_value': this_cpp_value,
        'cpp_type_initializer': idl_type.cpp_type_initializer,
        'custom_registration_extended_attributes':
            CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES.intersection(
                extended_attributes.iterkeys()),
        'deprecate_as': v8_utilities.deprecate_as(method),  # [DeprecateAs]
        'do_not_test_new_object': 'DoNotTestNewObject' in extended_attributes,
        'exposed_test': v8_utilities.exposed(method, interface),  # [Exposed]
        # TODO(yukishiino): Retire has_custom_registration flag.  Should be
        # replaced with V8DOMConfiguration::PropertyLocationConfiguration.
        'has_custom_registration':
            v8_utilities.has_extended_attribute(
                method, CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES),
        'has_exception_state':
            is_raises_exception or
            is_check_security_for_receiver or
            any(argument for argument in arguments
                if (argument.idl_type.name == 'SerializedScriptValue' or
                    argument_conversion_needs_exception_state(method, argument))),
        'has_optional_argument_without_default_value':
            any(True for argument_context in argument_contexts
                if argument_context['is_optional_without_default_value']),
        'idl_type': idl_type.base_type,
        'is_call_with_execution_context': has_extended_attribute_value(method, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_arguments': is_call_with_script_arguments,
        'is_call_with_script_state': is_call_with_script_state,
        'is_call_with_this_value': is_call_with_this_value,
        'is_ce_reactions': is_ce_reactions,
        'is_check_security_for_receiver': is_check_security_for_receiver,
        'is_check_security_for_return_value': is_check_security_for_return_value,
        'is_custom': 'Custom' in extended_attributes and
            not (is_custom_call_prologue or is_custom_call_epilogue),
        'is_custom_call_prologue': is_custom_call_prologue,
        'is_custom_call_epilogue': is_custom_call_epilogue,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        'is_do_not_check_security': is_do_not_check_security,
        'is_explicit_nullable': idl_type.is_explicit_nullable,
        'is_implemented_in_private_script': is_implemented_in_private_script,
        'is_new_object': 'NewObject' in extended_attributes,
        'is_partial_interface_member':
            'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_post_message': is_post_message,
        'is_raises_exception': is_raises_exception,
        'is_static': is_static,
        'is_unforgeable': is_unforgeable(interface, method),
        'is_variadic': arguments and arguments[-1].is_variadic,
        'measure_as': v8_utilities.measure_as(method, interface),  # [MeasureAs]
        'name': name,
        'number_of_arguments': len(arguments),
        'number_of_required_arguments': len([
            argument for argument in arguments
            if not (argument.is_optional or argument.is_variadic)]),
        'number_of_required_or_variadic_arguments': len([
            argument for argument in arguments
            if not argument.is_optional]),
        'on_instance': v8_utilities.on_instance(interface, method),
        'on_interface': v8_utilities.on_interface(interface, method),
        'on_prototype': v8_utilities.on_prototype(interface, method),
        'only_exposed_to_private_script': is_only_exposed_to_private_script,
        'origin_trial_enabled_function': v8_utilities.origin_trial_enabled_function_name(method),  # [OriginTrialEnabled]
        'origin_trial_feature_name': v8_utilities.origin_trial_feature_name(method),  # [OriginTrialEnabled]
        'private_script_v8_value_to_local_cpp_value': idl_type.v8_value_to_local_cpp_value(
            extended_attributes, 'v8Value', 'cppValue', isolate='scriptState->isolate()', bailout_return_value='false'),
        'property_attributes': property_attributes(interface, method),
        'returns_promise': method.returns_promise,
        'runtime_enabled_function': v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
        'secure_context_test': v8_utilities.secure_context(method, interface),  # [SecureContext]
        'should_be_exposed_to_script': not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        'use_output_parameter_for_result': idl_type.use_output_parameter_for_result,
        'use_local_result': use_local_result(method),
        'v8_set_return_value': v8_set_return_value(interface.name, method, this_cpp_value),
        'v8_set_return_value_for_main_world': v8_set_return_value(interface.name, method, this_cpp_value, for_main_world=True),
        'visible': is_visible,
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings' in extended_attributes else [''],  # [PerWorldBindings],
    }
Ejemplo n.º 9
0
def attribute_context(interface, attribute, interfaces):
    """Creates a Jinja template context for an attribute of an interface.

    Args:
        interface: An interface which |attribute| belongs to
        attribute: An attribute to create the context for
        interfaces: A dict which maps an interface name to the definition
            which can be referred if needed

    Returns:
        A Jinja template context for |attribute|
    """

    idl_type = attribute.idl_type
    base_idl_type = idl_type.base_type
    extended_attributes = attribute.extended_attributes

    idl_type.add_includes_for_type(extended_attributes)
    if idl_type.enum_values:
        includes.add("core/inspector/ConsoleMessage.h")

    # [CheckSecurity]
    is_do_not_check_security = "DoNotCheckSecurity" in extended_attributes
    is_check_security_for_receiver = (
        has_extended_attribute_value(interface, "CheckSecurity", "Receiver") and not is_do_not_check_security
    )
    is_check_security_for_return_value = has_extended_attribute_value(attribute, "CheckSecurity", "ReturnValue")
    if is_check_security_for_receiver or is_check_security_for_return_value:
        includes.add("bindings/core/v8/BindingSecurity.h")
    # [Constructor]
    # TODO(yukishiino): Constructors are much like methods although constructors
    # are not methods.  Constructors must be data-type properties, and we can
    # support them as a kind of methods.
    constructor_type = idl_type.constructor_type_name if is_constructor_attribute(attribute) else None
    # [CEReactions]
    is_ce_reactions = "CEReactions" in extended_attributes
    if is_ce_reactions:
        includes.add("core/dom/custom/CEReactionsScope.h")
    # [CustomElementCallbacks], [Reflect]
    is_custom_element_callbacks = "CustomElementCallbacks" in extended_attributes
    is_reflect = "Reflect" in extended_attributes
    if is_custom_element_callbacks or is_reflect:
        includes.add("core/dom/custom/V0CustomElementProcessingStack.h")
    # [ImplementedInPrivateScript]
    is_implemented_in_private_script = "ImplementedInPrivateScript" in extended_attributes
    if is_implemented_in_private_script:
        includes.add("bindings/core/v8/PrivateScriptRunner.h")
        includes.add("core/frame/LocalFrame.h")
        includes.add("platform/ScriptForbiddenScope.h")
    # [OnlyExposedToPrivateScript]
    is_only_exposed_to_private_script = "OnlyExposedToPrivateScript" in extended_attributes
    # [PerWorldBindings]
    if "PerWorldBindings" in extended_attributes:
        assert (
            idl_type.is_wrapper_type or "LogActivity" in extended_attributes
        ), "[PerWorldBindings] should only be used with wrapper types: %s.%s" % (interface.name, attribute.name)
    # [SaveSameObject]
    is_save_same_object = (
        "SameObject" in attribute.extended_attributes and "SaveSameObject" in attribute.extended_attributes
    )
    if is_save_same_object:
        includes.add("bindings/core/v8/V8PrivateProperty.h")

    if (
        base_idl_type == "EventHandler"
        and interface.name in ["Window", "WorkerGlobalScope"]
        and attribute.name == "onerror"
    ):
        includes.add("bindings/core/v8/V8ErrorHandler.h")

    cached_attribute_validation_method = extended_attributes.get("CachedAttribute")
    keep_alive_for_gc = is_keep_alive_for_gc(interface, attribute)
    if cached_attribute_validation_method or keep_alive_for_gc:
        includes.add("bindings/core/v8/V8HiddenValue.h")

    # [CachedAccessor]
    is_cached_accessor = "CachedAccessor" in extended_attributes
    if is_cached_accessor:
        includes.add("bindings/core/v8/V8PrivateProperty.h")

    context = {
        "access_control_list": access_control_list(interface, attribute),
        "activity_logging_world_list_for_getter": v8_utilities.activity_logging_world_list(
            attribute, "Getter"
        ),  # [ActivityLogging]
        "activity_logging_world_list_for_setter": v8_utilities.activity_logging_world_list(
            attribute, "Setter"
        ),  # [ActivityLogging]
        "activity_logging_world_check": v8_utilities.activity_logging_world_check(attribute),  # [ActivityLogging]
        "argument_cpp_type": idl_type.cpp_type_args(used_as_rvalue_type=True),
        "cached_attribute_validation_method": cached_attribute_validation_method,
        "constructor_type": constructor_type,
        "cpp_name": cpp_name(attribute),
        "cpp_type": idl_type.cpp_type,
        "cpp_type_initializer": idl_type.cpp_type_initializer,
        "deprecate_as": v8_utilities.deprecate_as(attribute),  # [DeprecateAs]
        "enum_type": idl_type.enum_type,
        "enum_values": idl_type.enum_values,
        "exposed_test": v8_utilities.exposed(attribute, interface),  # [Exposed]
        "has_custom_getter": has_custom_getter(attribute),
        "has_custom_setter": has_custom_setter(attribute),
        "has_setter": has_setter(interface, attribute),
        "idl_type": str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        "is_cached_accessor": is_cached_accessor,
        "is_call_with_execution_context": has_extended_attribute_value(attribute, "CallWith", "ExecutionContext"),
        "is_call_with_script_state": has_extended_attribute_value(attribute, "CallWith", "ScriptState"),
        "is_ce_reactions": is_ce_reactions,
        "is_check_security_for_receiver": is_check_security_for_receiver,
        "is_check_security_for_return_value": is_check_security_for_return_value,
        "is_custom_element_callbacks": is_custom_element_callbacks,
        # TODO(yukishiino): Make all DOM attributes accessor-type properties.
        "is_data_type_property": not ("CachedAccessor" in extended_attributes)
        and is_data_type_property(interface, attribute),
        "is_getter_raises_exception": "RaisesException" in extended_attributes  # [RaisesException]
        and extended_attributes["RaisesException"] in (None, "Getter"),
        "is_implemented_in_private_script": is_implemented_in_private_script,
        "is_keep_alive_for_gc": keep_alive_for_gc,
        "is_lenient_this": "LenientThis" in extended_attributes,
        "is_nullable": idl_type.is_nullable,
        "is_explicit_nullable": idl_type.is_explicit_nullable,
        "is_partial_interface_member": "PartialInterfaceImplementedAs" in extended_attributes,
        "is_per_world_bindings": "PerWorldBindings" in extended_attributes,
        "is_put_forwards": "PutForwards" in extended_attributes,
        "is_read_only": attribute.is_read_only,
        "is_reflect": is_reflect,
        "is_replaceable": "Replaceable" in attribute.extended_attributes,
        "is_save_same_object": is_save_same_object,
        "is_static": attribute.is_static,
        "is_url": "URL" in extended_attributes,
        "is_unforgeable": is_unforgeable(interface, attribute),
        "on_instance": v8_utilities.on_instance(interface, attribute),
        "on_interface": v8_utilities.on_interface(interface, attribute),
        "on_prototype": v8_utilities.on_prototype(interface, attribute),
        "origin_trial_enabled_function": v8_utilities.origin_trial_enabled_function_name(
            attribute
        ),  # [OriginTrialEnabled]
        "origin_trial_feature_name": v8_utilities.origin_trial_feature_name(attribute),  # [OriginTrialEnabled]
        "use_output_parameter_for_result": idl_type.use_output_parameter_for_result,
        "measure_as": v8_utilities.measure_as(attribute, interface),  # [MeasureAs]
        "name": attribute.name,
        "only_exposed_to_private_script": is_only_exposed_to_private_script,
        "private_script_v8_value_to_local_cpp_value": idl_type.v8_value_to_local_cpp_value(
            extended_attributes, "v8Value", "cppValue", bailout_return_value="false", isolate="scriptState->isolate()"
        ),
        "property_attributes": property_attributes(interface, attribute),
        "reflect_empty": extended_attributes.get("ReflectEmpty"),
        "reflect_invalid": extended_attributes.get("ReflectInvalid", ""),
        "reflect_missing": extended_attributes.get("ReflectMissing"),
        "reflect_only": extended_attribute_value_as_list(attribute, "ReflectOnly"),
        "runtime_enabled_function": v8_utilities.runtime_enabled_function_name(attribute),  # [RuntimeEnabled]
        "runtime_feature_name": v8_utilities.runtime_feature_name(attribute),  # [RuntimeEnabled]
        "secure_context_test": v8_utilities.secure_context(attribute, interface),  # [SecureContext]
        "should_be_exposed_to_script": not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        "cached_accessor_name": "%s%sCachedAccessor" % (interface.name, attribute.name.capitalize()),
        "world_suffixes": (
            ["", "ForMainWorld"] if "PerWorldBindings" in extended_attributes else [""]
        ),  # [PerWorldBindings]
    }

    if is_constructor_attribute(attribute):
        update_constructor_attribute_context(interface, attribute, context)
    if not has_custom_getter(attribute):
        getter_context(interface, attribute, context)
    if not has_custom_setter(attribute) and has_setter(interface, attribute):
        setter_context(interface, attribute, interfaces, context)

    return context
Ejemplo n.º 10
0
def method_context(interface, method, is_visible=True):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

    if is_visible:
        idl_type.add_includes_for_type(extended_attributes)

    this_cpp_value = cpp_value(interface, method, len(arguments))

    is_implemented_in_private_script = "ImplementedInPrivateScript" in extended_attributes
    if is_implemented_in_private_script:
        includes.add("bindings/core/v8/PrivateScriptRunner.h")
        includes.add("core/frame/LocalFrame.h")
        includes.add("platform/ScriptForbiddenScope.h")

    # [OnlyExposedToPrivateScript]
    is_only_exposed_to_private_script = "OnlyExposedToPrivateScript" in extended_attributes

    is_call_with_script_arguments = has_extended_attribute_value(method, "CallWith", "ScriptArguments")
    if is_call_with_script_arguments:
        includes.update(["bindings/core/v8/ScriptCallStack.h", "core/inspector/ScriptArguments.h"])
    is_call_with_script_state = has_extended_attribute_value(method, "CallWith", "ScriptState")
    is_call_with_this_value = has_extended_attribute_value(method, "CallWith", "ThisValue")
    if is_call_with_script_state or is_call_with_this_value:
        includes.add("bindings/core/v8/ScriptState.h")

    # [CheckSecurity]
    is_cross_origin = "CrossOrigin" in extended_attributes
    is_check_security_for_receiver = (
        has_extended_attribute_value(interface, "CheckSecurity", "Receiver") and not is_cross_origin
    )
    is_check_security_for_return_value = has_extended_attribute_value(method, "CheckSecurity", "ReturnValue")
    if is_check_security_for_receiver or is_check_security_for_return_value:
        includes.add("bindings/core/v8/BindingSecurity.h")

    is_ce_reactions = "CEReactions" in extended_attributes
    if is_ce_reactions:
        includes.add("core/dom/custom/CEReactionsScope.h")
    is_custom_element_callbacks = "CustomElementCallbacks" in extended_attributes
    if is_custom_element_callbacks:
        includes.add("core/dom/custom/V0CustomElementProcessingStack.h")

    is_raises_exception = "RaisesException" in extended_attributes
    is_custom_call_prologue = has_extended_attribute_value(method, "Custom", "CallPrologue")
    is_custom_call_epilogue = has_extended_attribute_value(method, "Custom", "CallEpilogue")
    is_post_message = "PostMessage" in extended_attributes
    if is_post_message:
        includes.add("bindings/core/v8/SerializedScriptValueFactory.h")
        includes.add("bindings/core/v8/Transferables.h")
        includes.add("core/dom/DOMArrayBufferBase.h")
        includes.add("core/frame/ImageBitmap.h")

    if "LenientThis" in extended_attributes:
        raise Exception("[LenientThis] is not supported for operations.")

    argument_contexts = [
        argument_context(interface, method, argument, index, is_visible=is_visible)
        for index, argument in enumerate(arguments)
    ]

    return {
        "activity_logging_world_list": v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        "arguments": argument_contexts,
        "argument_declarations_for_private_script": argument_declarations_for_private_script(interface, method),
        "cpp_type": (
            v8_types.cpp_template_type("Nullable", idl_type.cpp_type)
            if idl_type.is_explicit_nullable
            else idl_type.cpp_type
        ),
        "cpp_value": this_cpp_value,
        "cpp_type_initializer": idl_type.cpp_type_initializer,
        "deprecate_as": v8_utilities.deprecate_as(method),  # [DeprecateAs]
        "do_not_test_new_object": "DoNotTestNewObject" in extended_attributes,
        "exposed_test": v8_utilities.exposed(method, interface),  # [Exposed]
        "has_exception_state": is_raises_exception
        or is_check_security_for_receiver
        or any(
            argument
            for argument in arguments
            if (
                argument.idl_type.name == "SerializedScriptValue"
                or argument_conversion_needs_exception_state(method, argument)
            )
        ),
        "has_optional_argument_without_default_value": any(
            True for argument_context in argument_contexts if argument_context["is_optional_without_default_value"]
        ),
        "idl_type": idl_type.base_type,
        "is_call_with_execution_context": has_extended_attribute_value(method, "CallWith", "ExecutionContext"),
        "is_call_with_script_arguments": is_call_with_script_arguments,
        "is_call_with_script_state": is_call_with_script_state,
        "is_call_with_this_value": is_call_with_this_value,
        "is_ce_reactions": is_ce_reactions,
        "is_check_security_for_receiver": is_check_security_for_receiver,
        "is_check_security_for_return_value": is_check_security_for_return_value,
        "is_cross_origin": "CrossOrigin" in extended_attributes,
        "is_custom": "Custom" in extended_attributes and not (is_custom_call_prologue or is_custom_call_epilogue),
        "is_custom_call_prologue": is_custom_call_prologue,
        "is_custom_call_epilogue": is_custom_call_epilogue,
        "is_custom_element_callbacks": is_custom_element_callbacks,
        "is_explicit_nullable": idl_type.is_explicit_nullable,
        "is_implemented_in_private_script": is_implemented_in_private_script,
        "is_new_object": "NewObject" in extended_attributes,
        "is_partial_interface_member": "PartialInterfaceImplementedAs" in extended_attributes,
        "is_per_world_bindings": "PerWorldBindings" in extended_attributes,
        "is_post_message": is_post_message,
        "is_raises_exception": is_raises_exception,
        "is_static": is_static,
        "is_unforgeable": is_unforgeable(interface, method),
        "is_variadic": arguments and arguments[-1].is_variadic,
        "measure_as": v8_utilities.measure_as(method, interface),  # [MeasureAs]
        "name": name,
        "number_of_arguments": len(arguments),
        "number_of_required_arguments": len(
            [argument for argument in arguments if not (argument.is_optional or argument.is_variadic)]
        ),
        "number_of_required_or_variadic_arguments": len(
            [argument for argument in arguments if not argument.is_optional]
        ),
        "on_instance": v8_utilities.on_instance(interface, method),
        "on_interface": v8_utilities.on_interface(interface, method),
        "on_prototype": v8_utilities.on_prototype(interface, method),
        "only_exposed_to_private_script": is_only_exposed_to_private_script,
        "origin_trial_enabled_function": v8_utilities.origin_trial_enabled_function_name(
            method
        ),  # [OriginTrialEnabled]
        "origin_trial_feature_name": v8_utilities.origin_trial_feature_name(method),  # [OriginTrialEnabled]
        "private_script_v8_value_to_local_cpp_value": idl_type.v8_value_to_local_cpp_value(
            extended_attributes, "v8Value", "cppValue", isolate="scriptState->isolate()", bailout_return_value="false"
        ),
        "property_attributes": property_attributes(interface, method),
        "returns_promise": method.returns_promise,
        "runtime_enabled_function": v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
        "secure_context_test": v8_utilities.secure_context(method, interface),  # [SecureContext]
        "should_be_exposed_to_script": not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        "use_output_parameter_for_result": idl_type.use_output_parameter_for_result,
        "use_local_result": use_local_result(method),
        "v8_set_return_value": v8_set_return_value(interface.name, method, this_cpp_value),
        "v8_set_return_value_for_main_world": v8_set_return_value(
            interface.name, method, this_cpp_value, for_main_world=True
        ),
        "visible": is_visible,
        "world_suffixes": ["", "ForMainWorld"]
        if "PerWorldBindings" in extended_attributes
        else [""],  # [PerWorldBindings],
    }