Ejemplo n.º 1
0
def constant_context(constant):
    extended_attributes = constant.extended_attributes
    return {
        'cpp_class': extended_attributes.get('PartialInterfaceImplementedAs'),
        'deprecate_as': v8_utilities.deprecate_as(constant),  # [DeprecateAs]
        'idl_type': constant.idl_type.name,
        'measure_as': v8_utilities.measure_as(constant),  # [MeasureAs]
        'name': constant.name,
        # FIXME: use 'reflected_name' as correct 'name'
        'reflected_name': extended_attributes.get('Reflect', constant.name),
        'runtime_enabled_function': runtime_enabled_function_name(constant),
        'value': constant.value,
    }
Ejemplo n.º 2
0
def constant_context(constant):
    extended_attributes = constant.extended_attributes
    return {
        'cpp_class': extended_attributes.get('PartialInterfaceImplementedAs'),
        'deprecate_as': v8_utilities.deprecate_as(constant),  # [DeprecateAs]
        'idl_type': constant.idl_type.name,
        'measure_as': v8_utilities.measure_as(constant),  # [MeasureAs]
        'name': constant.name,
        # FIXME: use 'reflected_name' as correct 'name'
        'reflected_name': extended_attributes.get('Reflect', constant.name),
        'runtime_enabled_function': runtime_enabled_function_name(constant),
        'value': constant.value,
    }
def generate_getter(interface, attribute, contents):
    idl_type = attribute.idl_type
    v8_types.add_includes_for_type(idl_type)
    extended_attributes = attribute.extended_attributes

    cpp_value = getter_expression(interface, attribute, contents)
    # Normally we can inline the function call into the return statement to
    # avoid the overhead of using a Ref<> temporary, but for some cases
    # (nullable types, EventHandler, [CachedAttribute], or if there are
    # exceptions), we need to use a local variable.
    # FIXME: check if compilers are smart enough to inline this, and if so,
    # always use a local variable (for readability and CG simplicity).
    if (attribute.is_nullable or
        idl_type == 'EventHandler' or
        'CachedAttribute' in extended_attributes or
        contents['is_getter_raises_exception']):
        contents['cpp_value_original'] = cpp_value
        cpp_value = 'jsValue'
    contents['cpp_value'] = cpp_value

    if contents['is_keep_alive_for_gc']:
        v8_set_return_value_statement = 'v8SetReturnValue(info, wrapper)'
        includes.add('bindings/v8/V8HiddenPropertyName.h')
    else:
        v8_set_return_value_statement = v8_types.v8_set_return_value(idl_type, cpp_value, extended_attributes=extended_attributes, script_wrappable='imp')
    contents['v8_set_return_value'] = v8_set_return_value_statement

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

    # [CheckSecurityForNode]
    is_check_security_for_node = 'CheckSecurityForNode' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/v8/BindingSecurity.h')
    if is_check_security_for_node or contents['is_getter_raises_exception']:
        includes.update(set(['bindings/v8/ExceptionMessages.h',
                             'bindings/v8/ExceptionState.h']))

    contents.update({
        'deprecate_as': v8_utilities.deprecate_as(attribute),  # [DeprecateAs]
        'is_check_security_for_node': is_check_security_for_node,
        'is_unforgeable': 'Unforgeable' in extended_attributes,
        'measure_as': v8_utilities.measure_as(attribute),  # [MeasureAs]
    })
Ejemplo n.º 4
0
def interface_context(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

    # [ActiveDOMObject]
    is_active_dom_object = 'ActiveDOMObject' in extended_attributes

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

    # [DependentLifetime]
    is_dependent_lifetime = 'DependentLifetime' in extended_attributes

    # [Iterable]
    iterator_method = None
    if 'Iterable' in extended_attributes:
        iterator_operation = IdlOperation(interface.idl_name)
        iterator_operation.name = 'iterator'
        iterator_operation.idl_type = IdlType('Iterator')
        iterator_operation.extended_attributes['RaisesException'] = None
        iterator_operation.extended_attributes['CallWith'] = 'ScriptState'
        iterator_method = v8_methods.method_context(interface,
                                                    iterator_operation)

    # [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/core/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(raw_type=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()

    # [NotScriptWrappable]
    is_script_wrappable = 'NotScriptWrappable' not 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)

    this_gc_type = gc_type(interface)

    wrapper_class_id = ('NodeClassId' if inherits_interface(interface.name, 'Node') else 'ObjectClassId')

    context = {
        'conditional_string': conditional_string(interface),  # [Conditional]
        'cpp_class': cpp_name(interface),
        'gc_type': this_gc_type,
        # FIXME: Remove 'EventTarget' special handling, http://crbug.com/383699
        'has_access_check_callbacks': (is_check_security and
                                       interface.name != 'Window' and
                                       interface.name != 'EventTarget'),
        '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_check_security': is_check_security,
        'is_dependent_lifetime': is_dependent_lifetime,
        'is_event_target': inherits_interface(interface.name, 'EventTarget'),
        'is_exception': interface.is_exception,
        'is_node': inherits_interface(interface.name, 'Node'),
        'is_script_wrappable': is_script_wrappable,
        'iterator_method': iterator_method,
        'lifetime': 'Dependent'
            if (has_visit_dom_wrapper or
                is_active_dom_object or
                is_dependent_lifetime)
            else 'Independent',
        '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,
        'v8_class': v8_utilities.v8_class_name(interface),
        'wrapper_class_id': wrapper_class_id,
    }

    # Constructors
    constructors = [constructor_context(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:
        context['constructor_overloads'] = overloads_context(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/core/v8/Dictionary.h')
        if any_type_attributes:
            includes.add('bindings/core/v8/SerializedScriptValue.h')

    # [NamedConstructor]
    named_constructor = named_constructor_context(interface)

    if (constructors or custom_constructors or has_event_constructor or
        named_constructor):
        includes.add('bindings/core/v8/V8ObjectConstructor.h')
        includes.add('core/frame/LocalDOMWindow.h')

    context.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_raises_exception': extended_attributes.get('RaisesException') == 'Constructor',  # [RaisesException=Constructor]
        'named_constructor': named_constructor,
    })

    constants = [constant_context(constant) for constant in interface.constants]

    special_getter_constants = []
    runtime_enabled_constants = []
    constant_configuration_constants = []

    for constant in constants:
        if constant['measure_as'] or constant['deprecate_as']:
            special_getter_constants.append(constant)
            continue
        if constant['runtime_enabled_function']:
            runtime_enabled_constants.append(constant)
            continue
        constant_configuration_constants.append(constant)

    # Constants
    context.update({
        'constant_configuration_constants': constant_configuration_constants,
        'constants': constants,
        'do_not_check_constants': 'DoNotCheckConstants' in extended_attributes,
        'has_constant_configuration': any(
            not constant['runtime_enabled_function']
            for constant in constants),
        'runtime_enabled_constants': runtime_enabled_constants,
        'special_getter_constants': special_getter_constants,
    })

    # Attributes
    attributes = [v8_attributes.attribute_context(interface, attribute)
                  for attribute in interface.attributes]
    context.update({
        'attributes': attributes,
        'has_accessors': any(attribute['is_expose_js_accessors'] and attribute['should_be_exposed_to_script'] 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'])
             and attribute['should_be_exposed_to_script']
             for attribute in attributes),
        'has_conditional_attributes': any(attribute['per_context_enabled_function'] or attribute['exposed_test'] for attribute in attributes),
        'has_constructor_attributes': any(attribute['constructor_type'] for attribute in attributes),
        'has_replaceable_attributes': any(attribute['is_replaceable'] for attribute in attributes),
    })

    # Methods
    methods = [v8_methods.method_context(interface, method)
               for method in interface.operations
               if method.name]  # Skip anonymous special operations (methods)
    compute_method_overloads_context(methods)

    # Stringifier
    if interface.stringifier:
        stringifier = interface.stringifier
        method = IdlOperation(interface.idl_name)
        method.name = 'toString'
        method.idl_type = IdlType('DOMString')
        method.extended_attributes.update(stringifier.extended_attributes)
        if stringifier.attribute:
            method.extended_attributes['ImplementedAs'] = stringifier.attribute.name
        elif stringifier.operation:
            method.extended_attributes['ImplementedAs'] = stringifier.operation.name
        methods.append(v8_methods.method_context(interface, method))

    conditionally_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']
            conditionally_exposed_function = overloads['exposed_test_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']
            conditionally_exposed_function = method['exposed_test']
            runtime_enabled_function = method['runtime_enabled_function']
            has_custom_registration = method['has_custom_registration']

        if per_context_enabled_function or conditionally_exposed_function:
            conditionally_enabled_methods.append(method)
            continue
        if runtime_enabled_function or has_custom_registration:
            custom_registration_methods.append(method)
            continue
        if method['should_be_exposed_to_script']:
            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'])

    context.update({
        'conditionally_enabled_methods': conditionally_enabled_methods,
        '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),
        'has_private_script': any(attribute['is_implemented_in_private_script'] for attribute in attributes) or
            any(method['is_implemented_in_private_script'] for method in methods),
        'method_configuration_methods': method_configuration_methods,
        'methods': methods,
    })

    context.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 context
Ejemplo n.º 5
0
def generate_attribute(interface, attribute):
    idl_type = attribute.idl_type
    extended_attributes = attribute.extended_attributes

    v8_types.add_includes_for_type(idl_type)

    # [CheckSecurity]
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/v8/BindingSecurity.h')
    # [Custom]
    has_custom_getter = ('Custom' in extended_attributes and
                         extended_attributes['Custom'] in [None, 'Getter'])
    has_custom_setter = (not attribute.is_read_only and
                         'Custom' in extended_attributes and
                         extended_attributes['Custom'] in [None, 'Setter'])
    # [RaisesException]
    is_getter_raises_exception = (
        'RaisesException' in extended_attributes and
        extended_attributes['RaisesException'] in [None, 'Getter'])
    if is_check_security_for_node or is_getter_raises_exception:
        includes.add('bindings/v8/ExceptionMessages.h')
    # [Reflect]
    is_reflect = 'Reflect' in extended_attributes
    if is_reflect:
        includes.add('core/dom/custom/CustomElementCallbackDispatcher.h')

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

    contents = {
        'access_control_list': access_control_list(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]
        'cached_attribute_validation_method': extended_attributes.get('CachedAttribute'),
        'conditional_string': v8_utilities.conditional_string(attribute),
        'constructor_type': v8_types.constructor_type(idl_type)
                            if is_constructor_attribute(attribute) else None,
        'cpp_name': cpp_name(attribute),
        'cpp_type': v8_types.cpp_type(idl_type),
        'deprecate_as': v8_utilities.deprecate_as(attribute),  # [DeprecateAs]
        'enum_validation_expression':
            v8_utilities.enum_validation_expression(idl_type),
        'has_custom_getter': has_custom_getter,
        'has_custom_setter': has_custom_setter,
        'has_strict_type_checking': (
            'StrictTypeChecking' in extended_attributes and
            v8_types.is_interface_type(idl_type)),
        'idl_type': idl_type,
        'is_call_with_execution_context': v8_utilities.has_extended_attribute_value(attribute, 'CallWith', 'ExecutionContext'),
        'is_check_security_for_node': is_check_security_for_node,
        'is_expose_js_accessors': 'ExposeJSAccessors' in extended_attributes,
        'is_getter_raises_exception': (
            'RaisesException' in extended_attributes and
            extended_attributes['RaisesException'] in [None, 'Getter']),
        'is_initialized_by_event_constructor':
            'InitializedByEventConstructor' in extended_attributes,
        'is_keep_alive_for_gc': is_keep_alive_for_gc(attribute),
        'is_nullable': attribute.is_nullable,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_read_only': attribute.is_read_only,
        'is_reflect': is_reflect,
        'is_replaceable': 'Replaceable' in attribute.extended_attributes,
        'is_setter_raises_exception': (
            'RaisesException' in extended_attributes and
            extended_attributes['RaisesException'] in [None, 'Setter']),
        'is_static': attribute.is_static,
        'is_unforgeable': 'Unforgeable' in extended_attributes,
        'measure_as': v8_utilities.measure_as(attribute),  # [MeasureAs]
        'name': attribute.name,
        'per_context_enabled_function': v8_utilities.per_context_enabled_function_name(attribute),  # [PerContextEnabled]
        'property_attributes': property_attributes(attribute),
        'setter_callback': setter_callback_name(interface, attribute),
        'v8_type': v8_types.v8_type(idl_type),
        'runtime_enabled_function': v8_utilities.runtime_enabled_function_name(attribute),  # [RuntimeEnabled]
        'world_suffixes': ['', 'ForMainWorld']
                          if 'PerWorldBindings' in extended_attributes
                          else [''],  # [PerWorldBindings]
    }

    if is_constructor_attribute(attribute):
        return contents
    if not has_custom_getter:
        generate_getter(interface, attribute, contents)
    if not(attribute.is_read_only or has_custom_setter):
        contents.update({
            'cpp_setter': setter_expression(interface, attribute, contents),
            'v8_value_to_local_cpp_value': v8_types.v8_value_to_local_cpp_value(
                idl_type, extended_attributes, 'jsValue', 'cppValue'),
        })

    return contents
Ejemplo n.º 6
0
def generate_method(interface, method):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

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

    def function_template():
        if is_static:
            return 'functionTemplate'
        if 'Unforgeable' in extended_attributes:
            return 'instanceTemplate'
        return 'prototypeTemplate'

    def signature():
        if this_custom_signature:
            return name + 'Signature'
        if is_static or 'DoNotCheckSignature' in extended_attributes:
            return 'v8::Local<v8::Signature>()'
        return 'defaultSignature'

    is_call_with_script_arguments = has_extended_attribute_value(
        method, 'CallWith', 'ScriptArguments')
    if is_call_with_script_arguments:
        includes.update([
            'bindings/v8/ScriptCallStackFactory.h',
            'core/inspector/ScriptArguments.h'
        ])
    is_call_with_script_state = has_extended_attribute_value(
        method, 'CallWith', 'ScriptState')
    if is_call_with_script_state:
        includes.add('bindings/v8/ScriptState.h')
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/v8/BindingSecurity.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/dom/custom/CustomElementCallbackDispatcher.h')

    contents = {
        'activity_logging_world_list':
        v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments': [
            generate_argument(interface, method, argument, index)
            for index, argument in enumerate(arguments)
        ],
        'conditional_string':
        v8_utilities.conditional_string(method),
        'cpp_type':
        v8_types.cpp_type(idl_type),
        'cpp_value':
        this_cpp_value,
        'custom_signature':
        this_custom_signature,
        'deprecate_as':
        v8_utilities.deprecate_as(method),  # [DeprecateAs]
        'do_not_check_signature':
        not (this_custom_signature or is_static
             or v8_utilities.has_extended_attribute(method, [
                 'DoNotCheckSecurity', 'DoNotCheckSignature', 'NotEnumerable',
                 'ReadOnly', 'RuntimeEnabled', 'Unforgeable'
             ])),
        'function_template':
        function_template(),
        'idl_type':
        idl_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_check_security_for_frame':
        ('CheckSecurity' in interface.extended_attributes
         and 'DoNotCheckSecurity' not in extended_attributes),
        'is_check_security_for_node':
        is_check_security_for_node,
        'is_custom':
        'Custom' in extended_attributes,
        'is_custom_element_callbacks':
        is_custom_element_callbacks,
        'is_do_not_check_security':
        'DoNotCheckSecurity' in extended_attributes,
        'is_per_world_bindings':
        'PerWorldBindings' in extended_attributes,
        'is_raises_exception':
        'RaisesException' in extended_attributes,
        'is_read_only':
        'ReadOnly' in extended_attributes,
        'is_static':
        is_static,
        'is_strict_type_checking':
        'StrictTypeChecking' in extended_attributes,
        'is_variadic':
        arguments and arguments[-1].is_variadic,
        'measure_as':
        v8_utilities.measure_as(method),  # [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]),
        'per_context_enabled_function':
        v8_utilities.per_context_enabled_function_name(
            method),  # [PerContextEnabled]
        'property_attributes':
        property_attributes(method),
        'runtime_enabled_function':
        v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
        'signature':
        signature(),
        'v8_set_return_value':
        v8_set_return_value(method, this_cpp_value),
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings'
        in extended_attributes else [''],  # [PerWorldBindings]
    }
    return contents
Ejemplo n.º 7
0
def method_context(interface, method):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

    idl_type.add_includes_for_type()
    this_cpp_value = cpp_value(interface, method, len(arguments))

    def function_template():
        if is_static:
            return "functionTemplate"
        if "Unforgeable" in extended_attributes:
            return "instanceTemplate"
        return "prototypeTemplate"

    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/ScriptCallStackFactory.h", "core/inspector/ScriptArguments.h"])
    is_call_with_script_state = has_extended_attribute_value(method, "CallWith", "ScriptState")
    if is_call_with_script_state:
        includes.add("bindings/core/v8/ScriptState.h")
    is_check_security_for_node = "CheckSecurity" in extended_attributes
    if is_check_security_for_node:
        includes.add("bindings/core/v8/BindingSecurity.h")
    is_custom_element_callbacks = "CustomElementCallbacks" in extended_attributes
    if is_custom_element_callbacks:
        includes.add("core/dom/custom/CustomElementProcessingStack.h")

    is_do_not_check_security = "DoNotCheckSecurity" in extended_attributes

    is_check_security_for_frame = (
        has_extended_attribute_value(interface, "CheckSecurity", "Frame") and not is_do_not_check_security
    )

    is_check_security_for_window = (
        has_extended_attribute_value(interface, "CheckSecurity", "Window") and not is_do_not_check_security
    )

    is_raises_exception = "RaisesException" in extended_attributes

    return {
        "activity_logging_world_list": v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        "arguments": [argument_context(interface, method, argument, index) for index, argument in enumerate(arguments)],
        "argument_declarations_for_private_script": argument_declarations_for_private_script(interface, method),
        "conditional_string": v8_utilities.conditional_string(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]
        "exposed_test": v8_utilities.exposed(method, interface),  # [Exposed]
        "function_template": function_template(),
        "has_custom_registration": is_static
        or v8_utilities.has_extended_attribute(method, CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES),
        "has_exception_state": is_raises_exception
        or is_check_security_for_frame
        or is_check_security_for_window
        or any(
            argument
            for argument in arguments
            if (
                argument.idl_type.name == "SerializedScriptValue"
                or argument_conversion_needs_exception_state(method, argument)
            )
        ),
        "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_check_security_for_frame": is_check_security_for_frame,
        "is_check_security_for_node": is_check_security_for_node,
        "is_check_security_for_window": is_check_security_for_window,
        "is_custom": "Custom" in extended_attributes,
        "is_custom_element_callbacks": is_custom_element_callbacks,
        "is_do_not_check_security": is_do_not_check_security,
        "is_do_not_check_signature": "DoNotCheckSignature" in extended_attributes,
        "is_explicit_nullable": idl_type.is_explicit_nullable,
        "is_implemented_in_private_script": is_implemented_in_private_script,
        "is_partial_interface_member": "PartialInterfaceImplementedAs" in extended_attributes,
        "is_per_world_bindings": "PerWorldBindings" in extended_attributes,
        "is_raises_exception": is_raises_exception,
        "is_read_only": "Unforgeable" in extended_attributes,
        "is_static": is_static,
        "is_variadic": arguments and arguments[-1].is_variadic,
        "measure_as": v8_utilities.measure_as(method),  # [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]
        ),
        "only_exposed_to_private_script": is_only_exposed_to_private_script,
        "per_context_enabled_function": v8_utilities.per_context_enabled_function_name(method),  # [PerContextEnabled]
        "private_script_v8_value_to_local_cpp_value": idl_type.v8_value_to_local_cpp_value(
            extended_attributes, "v8Value", "cppValue", isolate="scriptState->isolate()", used_in_private_script=True
        ),
        "property_attributes": property_attributes(method),
        "runtime_enabled_function": v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
        "should_be_exposed_to_script": not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        "signature": "v8::Local<v8::Signature>()"
        if is_static or "DoNotCheckSignature" in extended_attributes
        else "defaultSignature",
        "union_arguments": idl_type.union_arguments,
        "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
        ),
        "world_suffixes": ["", "ForMainWorld"]
        if "PerWorldBindings" in extended_attributes
        else [""],  # [PerWorldBindings],
    }
Ejemplo n.º 8
0
def attribute_context(interface, 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
    # [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/CustomElementProcessingStack.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)

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

    conditional_string = v8_utilities.conditional_string(attribute)
    if conditional_string:
        includes.add("wtf/build_config.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")

    if "APIExperimentEnabled" in extended_attributes:
        includes.add("core/experiments/ExperimentalFeatures.h")
        includes.add("core/inspector/ConsoleMessage.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]
        "api_experiment_enabled": v8_utilities.api_experiment_enabled_function(attribute),  # [APIExperimentEnabled]
        "api_experiment_enabled_per_interface": v8_utilities.api_experiment_enabled_function(
            interface
        ),  # [APIExperimentEnabled]
        "api_experiment_name": extended_attributes.get("APIExperimentEnabled"),  # [APIExperimentEnabled]
        "argument_cpp_type": idl_type.cpp_type_args(used_as_rvalue_type=True),
        "cached_attribute_validation_method": cached_attribute_validation_method,
        "conditional_string": conditional_string,
        "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(attribute),
        "idl_type": str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        "is_api_experiment_enabled": v8_utilities.api_experiment_enabled_function(attribute)
        or v8_utilities.api_experiment_enabled_function(interface),  # [APIExperimentEnabled]
        "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_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": constructor_type or interface.name == "Window" or interface.name == "Location",
        "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_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),
        "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]
        "should_be_exposed_to_script": not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        "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(attribute):
        setter_context(interface, attribute, context)

    return context
Ejemplo n.º 9
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 10
0
def attribute_context(interface, attribute):
    idl_type = attribute.idl_type
    base_idl_type = idl_type.base_type
    extended_attributes = attribute.extended_attributes

    idl_type.add_includes_for_type()

    # [CheckSecurity]
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/core/v8/BindingSecurity.h')
    # [Custom]
    has_custom_getter = ('Custom' in extended_attributes and
                         extended_attributes['Custom'] in [None, 'Getter'])
    has_custom_setter = (not attribute.is_read_only and
                         'Custom' in extended_attributes and
                         extended_attributes['Custom'] in [None, 'Setter'])
    # [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/CustomElementCallbackDispatcher.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)
    # [TypeChecking]
    has_type_checking_unrestricted = (
        (has_extended_attribute_value(interface, 'TypeChecking', 'Unrestricted') or
         has_extended_attribute_value(attribute, 'TypeChecking', 'Unrestricted')) and
         idl_type.name in ('Float', 'Double'))
    # [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')

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

    # Nullable type where the corresponding C++ type supports a null value.
    is_nullable_simple = idl_type.is_nullable and (
        (idl_type.is_string_type or idl_type.is_wrapper_type) and
        not idl_type.array_or_sequence_type)

    context = {
        'access_control_list': access_control_list(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_include_old_value_for_setter': 'LogPreviousValue' in extended_attributes,  # [ActivityLogging]
        'activity_logging_world_check': v8_utilities.activity_logging_world_check(attribute),  # [ActivityLogging]
        'argument_cpp_type': idl_type.cpp_type_args(used_as_argument=True),
        'cached_attribute_validation_method': extended_attributes.get('CachedAttribute'),
        'conditional_string': v8_utilities.conditional_string(attribute),
        'constructor_type': idl_type.constructor_type_name
                            if is_constructor_attribute(attribute) else None,
        'cpp_name': cpp_name(attribute),
        'cpp_type': idl_type.cpp_type,
        'deprecate_as': v8_utilities.deprecate_as(attribute),  # [DeprecateAs]
        'enum_validation_expression': idl_type.enum_validation_expression,
        'has_custom_getter': has_custom_getter,
        'has_custom_setter': has_custom_setter,
        'has_type_checking_unrestricted': has_type_checking_unrestricted,
        'idl_type': str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        'is_call_with_execution_context': v8_utilities.has_extended_attribute_value(attribute, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_state': v8_utilities.has_extended_attribute_value(attribute, 'CallWith', 'ScriptState'),
        'is_check_security_for_node': is_check_security_for_node,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        'is_expose_js_accessors': 'ExposeJSAccessors' in extended_attributes,
        '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_initialized_by_event_constructor':
            'InitializedByEventConstructor' in extended_attributes,
        'is_keep_alive_for_gc': is_keep_alive_for_gc(interface, attribute),
        'is_nullable': idl_type.is_nullable,
        'is_nullable_simple': is_nullable_simple,
        'is_partial_interface_member':
            'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_read_only': attribute.is_read_only,
        'is_reflect': is_reflect,
        'is_replaceable': 'Replaceable' in attribute.extended_attributes,
        'is_static': attribute.is_static,
        'is_url': 'URL' in extended_attributes,
        'is_unforgeable': 'Unforgeable' in extended_attributes,
        'measure_as': v8_utilities.measure_as(attribute),  # [MeasureAs]
        'name': attribute.name,
        'per_context_enabled_function': v8_utilities.per_context_enabled_function_name(attribute),  # [PerContextEnabled]
        'private_script_v8_value_to_local_cpp_value': idl_type.v8_value_to_local_cpp_value(
            extended_attributes, 'v8Value', 'cppValue', isolate='scriptState->isolate()', used_in_private_script=True),
        'property_attributes': property_attributes(attribute),
        'put_forwards': 'PutForwards' in extended_attributes,
        'reflect_empty': extended_attributes.get('ReflectEmpty'),
        'reflect_invalid': extended_attributes.get('ReflectInvalid', ''),
        'reflect_missing': extended_attributes.get('ReflectMissing'),
        'reflect_only': extended_attributes['ReflectOnly'].split('|')
            if 'ReflectOnly' in extended_attributes else None,
        'runtime_enabled_function': v8_utilities.runtime_enabled_function_name(attribute),  # [RuntimeEnabled]
        'setter_callback': setter_callback_name(interface, attribute),
        'v8_type': v8_types.v8_type(base_idl_type),
        'world_suffixes': ['', 'ForMainWorld']
                          if 'PerWorldBindings' in extended_attributes
                          else [''],  # [PerWorldBindings]
    }

    if is_constructor_attribute(attribute):
        constructor_getter_context(interface, attribute, context)
        return context
    if not has_custom_getter:
        getter_context(interface, attribute, context)
    if (not has_custom_setter and
        (not attribute.is_read_only or 'PutForwards' in extended_attributes)):
        setter_context(interface, attribute, context)

    return context
Ejemplo n.º 11
0
def attribute_context(interface, attribute):
    idl_type = attribute.idl_type
    base_idl_type = idl_type.base_type
    extended_attributes = attribute.extended_attributes

    idl_type.add_includes_for_type()

    # [CheckSecurity]
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/core/v8/BindingSecurity.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/CustomElementProcessingStack.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)
    # [TypeChecking]
    has_type_checking_unrestricted = ((
        has_extended_attribute_value(interface, 'TypeChecking', 'Unrestricted')
        or has_extended_attribute_value(attribute, 'TypeChecking',
                                        'Unrestricted'))
                                      and idl_type.name in ('Float', 'Double'))
    # [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

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

    context = {
        'access_control_list': access_control_list(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_include_old_value_for_setter': 'LogPreviousValue' in extended_attributes,  # [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': extended_attributes.get('CachedAttribute'),
        'conditional_string': v8_utilities.conditional_string(attribute),
        'constructor_type': idl_type.constructor_type_name
                            if is_constructor_attribute(attribute) else None,
        '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_validation_expression': idl_type.enum_validation_expression,
        'exposed_test': v8_utilities.exposed(attribute, interface),  # [Exposed]
        'has_custom_getter': has_custom_getter(attribute),
        'has_custom_setter': has_custom_setter(attribute),
        'has_type_checking_unrestricted': has_type_checking_unrestricted,
        'idl_type': str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        'is_call_with_execution_context': v8_utilities.has_extended_attribute_value(attribute, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_state': v8_utilities.has_extended_attribute_value(attribute, 'CallWith', 'ScriptState'),
        'is_check_security_for_node': is_check_security_for_node,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        'is_expose_js_accessors': 'ExposeJSAccessors' in extended_attributes,
        '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_initialized_by_event_constructor':
            'InitializedByEventConstructor' in extended_attributes,
        'is_keep_alive_for_gc': is_keep_alive_for_gc(interface, attribute),
        '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_read_only': attribute.is_read_only,
        'is_reflect': is_reflect,
        'is_replaceable': 'Replaceable' in attribute.extended_attributes,
        'is_static': attribute.is_static,
        'is_url': 'URL' in extended_attributes,
        'is_unforgeable': 'Unforgeable' in extended_attributes,
        'measure_as': v8_utilities.measure_as(attribute),  # [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', isolate='scriptState->isolate()', used_in_private_script=True),
        'property_attributes': property_attributes(attribute),
        'put_forwards': 'PutForwards' in extended_attributes,
        '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]
        'setter_callback': setter_callback_name(interface, attribute),
        'should_be_exposed_to_script': not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        'world_suffixes': ['', 'ForMainWorld']
                          if 'PerWorldBindings' in extended_attributes
                          else [''],  # [PerWorldBindings]
    }

    if is_constructor_attribute(attribute):
        constructor_getter_context(interface, attribute, context)
        return context
    if not has_custom_getter(attribute):
        getter_context(interface, attribute, context)
    if (not has_custom_setter(attribute) and
        (not attribute.is_read_only or 'PutForwards' in extended_attributes)):
        setter_context(interface, attribute, context)

    return context
Ejemplo n.º 12
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 13
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")

    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]
        "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 14
0
def interface_context(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_document = inherits_interface(interface.name, 'Document')
    if is_document:
        includes.update(['bindings/core/v8/ScriptController.h',
                         'bindings/core/v8/WindowProxy.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/core/v8/BindingSecurity.h')

    # [DependentLifetime]
    is_dependent_lifetime = 'DependentLifetime' in extended_attributes

    # [Iterable]
    iterator_method = None
    if 'Iterable' in extended_attributes:
        iterator_operation = IdlOperation(interface.idl_name)
        iterator_operation.name = 'iterator'
        iterator_operation.idl_type = IdlType('Iterator')
        iterator_operation.extended_attributes['RaisesException'] = None
        iterator_operation.extended_attributes['CallWith'] = 'ScriptState'
        iterator_method = v8_methods.method_context(interface,
                                                    iterator_operation)

    # [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/core/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(raw_type=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()

    # [NotScriptWrappable]
    is_script_wrappable = 'NotScriptWrappable' not in extended_attributes

    # [SpecialWrapFor]
    if 'SpecialWrapFor' in extended_attributes:
        special_wrap_for = extended_attribute_value_as_list(interface, 'SpecialWrapFor')
    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)

    wrapper_class_id = ('NodeClassId' if inherits_interface(interface.name, 'Node') else 'ObjectClassId')

    context = {
        'conditional_string': conditional_string(interface),  # [Conditional]
        'cpp_class': cpp_name(interface),
        # FIXME: Remove 'EventTarget' special handling, http://crbug.com/383699
        'has_access_check_callbacks': (is_check_security and
                                       interface.name != 'Window' and
                                       interface.name != 'EventTarget'),
        '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_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'),
        'is_script_wrappable': is_script_wrappable,
        'iterator_method': iterator_method,
        'lifetime': 'Dependent'
            if (has_visit_dom_wrapper or
                is_active_dom_object or
                is_dependent_lifetime)
            else 'Independent',
        'measure_as': v8_utilities.measure_as(interface),  # [MeasureAs]
        'parent_interface': parent_interface,
        'pass_cpp_type': cpp_template_type(
            'PassRefPtr',
            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_class_id': wrapper_class_id,
    }

    # Constructors
    constructors = [constructor_context(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:
        context['constructor_overloads'] = overloads_context(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/core/v8/Dictionary.h')
        if any_type_attributes:
            includes.add('bindings/core/v8/SerializedScriptValue.h')

    # [NamedConstructor]
    named_constructor = named_constructor_context(interface)

    if (constructors or custom_constructors or has_event_constructor or
        named_constructor):
        includes.add('bindings/core/v8/V8ObjectConstructor.h')
        includes.add('core/frame/LocalDOMWindow.h')

    context.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_raises_exception': extended_attributes.get('RaisesException') == 'Constructor',  # [RaisesException=Constructor]
        'named_constructor': named_constructor,
    })

    constants = [constant_context(constant) for constant in interface.constants]

    # Constants
    context.update({
        'constants': constants,
        'do_not_check_constants': 'DoNotCheckConstants' in extended_attributes,
        'has_constant_configuration': any(
            not constant['runtime_enabled_function']
            for constant in constants),
    })

    # Attributes
    attributes = [v8_attributes.attribute_context(interface, attribute)
                  for attribute in interface.attributes]
    context.update({
        'attributes': attributes,
        'has_accessors': any(attribute['is_expose_js_accessors'] and attribute['should_be_exposed_to_script'] for attribute in attributes),
        'has_attribute_configuration': any(
             not (attribute['is_expose_js_accessors'] or
                  attribute['is_static'] or
                  attribute['runtime_enabled_function'])
             and attribute['should_be_exposed_to_script']
             for attribute in attributes),
        'has_conditional_attributes': any(attribute['exposed_test'] for attribute in attributes),
        'has_constructor_attributes': any(attribute['constructor_type'] for attribute in attributes),
        'has_replaceable_attributes': any(attribute['is_replaceable'] for attribute in attributes),
    })

    # Methods
    methods = [v8_methods.method_context(interface, method)
               for method in interface.operations
               if method.name]  # Skip anonymous special operations (methods)
    compute_method_overloads_context(methods)

    # Stringifier
    if interface.stringifier:
        stringifier = interface.stringifier
        method = IdlOperation(interface.idl_name)
        method.name = 'toString'
        method.idl_type = IdlType('DOMString')
        method.extended_attributes.update(stringifier.extended_attributes)
        if stringifier.attribute:
            method.extended_attributes['ImplementedAs'] = stringifier.attribute.name
        elif stringifier.operation:
            method.extended_attributes['ImplementedAs'] = stringifier.operation.name
        methods.append(v8_methods.method_context(interface, method))

    conditionally_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']
            conditionally_exposed_function = overloads['exposed_test_all']
            runtime_enabled_function = overloads['runtime_enabled_function_all']
            has_custom_registration = overloads['has_custom_registration_all']
        else:
            conditionally_exposed_function = method['exposed_test']
            runtime_enabled_function = method['runtime_enabled_function']
            has_custom_registration = method['has_custom_registration']

        if conditionally_exposed_function:
            conditionally_enabled_methods.append(method)
            continue
        if runtime_enabled_function or has_custom_registration:
            custom_registration_methods.append(method)
            continue
        if method['should_be_exposed_to_script']:
            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'])

    context.update({
        'conditionally_enabled_methods': conditionally_enabled_methods,
        '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),
        'has_private_script': any(attribute['is_implemented_in_private_script'] for attribute in attributes) or
            any(method['is_implemented_in_private_script'] for method in methods),
        'method_configuration_methods': method_configuration_methods,
        'methods': methods,
    })

    context.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 context
def generate_method(interface, method):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

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

    def function_template():
        # FIXME: Rename as follows (also in v8/V8DOMConfiguration):
        # desc => functionTemplate
        # instance => instanceTemplate
        # proto => prototypeTemplate
        if is_static:
            return 'desc'
        if 'Unforgeable' in extended_attributes:
            return 'instance'
        return 'proto'

    def signature():
        if this_custom_signature:
            return name + 'Signature'
        if is_static or 'DoNotCheckSignature' in extended_attributes:
            return 'v8::Local<v8::Signature>()'
        return 'defaultSignature'

    is_call_with_script_arguments = has_extended_attribute_value(method, 'CallWith', 'ScriptArguments')
    if is_call_with_script_arguments:
        includes.update(['bindings/v8/ScriptCallStackFactory.h',
                         'core/inspector/ScriptArguments.h'])
    is_call_with_script_state = has_extended_attribute_value(method, 'CallWith', 'ScriptState')
    if is_call_with_script_state:
        includes.add('bindings/v8/ScriptState.h')
    is_check_security_for_node = 'CheckSecurityForNode' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/v8/BindingSecurity.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/dom/custom/CustomElementCallbackDispatcher.h')
    is_raises_exception = 'RaisesException' in extended_attributes
    if is_raises_exception:
        includes.update(['bindings/v8/ExceptionMessages.h',
                         'bindings/v8/ExceptionState.h'])

    contents = {
        'activity_logging_world_list': v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments': [generate_argument(interface, method, argument, index)
                      for index, argument in enumerate(arguments)],
        'conditional_string': v8_utilities.conditional_string(method),
        'cpp_type': v8_types.cpp_type(idl_type),
        'cpp_value': this_cpp_value,
        'custom_signature': this_custom_signature,
        'deprecate_as': v8_utilities.deprecate_as(method),  # [DeprecateAs]
        'do_not_check_signature': not(this_custom_signature or is_static or
            v8_utilities.has_extended_attribute(method,
                ['DoNotCheckSignature', 'NotEnumerable', 'ReadOnly',
                 'RuntimeEnabled', 'Unforgeable'])),
        'function_template': function_template(),
        'idl_type': idl_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_check_security_for_node': is_check_security_for_node,
        'is_custom': 'Custom' in extended_attributes,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_raises_exception': is_raises_exception,
        'is_static': is_static,
        'measure_as': v8_utilities.measure_as(method),  # [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]),
        'per_context_enabled_function_name': v8_utilities.per_context_enabled_function_name(method),  # [PerContextEnabled]
        'property_attributes': property_attributes(method),
        'runtime_enabled_function_name': v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
        'signature': signature(),
        'v8_set_return_value': v8_set_return_value(method, this_cpp_value),
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings' in extended_attributes else [''],  # [PerWorldBindings]
    }
    return contents
Ejemplo n.º 16
0
def attribute_context(interface, 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
    # [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/CustomElementProcessingStack.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)

    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')

    if 'RuntimeEnabled' in extended_attributes:
        includes.add('platform/RuntimeEnabledFeatures.h')

    if 'OriginTrialEnabled' in extended_attributes:
        includes.add('core/inspector/ConsoleMessage.h')
        includes.add('core/origin_trials/OriginTrials.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(attribute),
        'idl_type': str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        'is_origin_trial_enabled': v8_utilities.origin_trial_enabled_function(attribute) or v8_utilities.origin_trial_enabled_function(interface),  # [OriginTrialEnabled]
        '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_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': constructor_type or interface.name == 'Window' or interface.name == 'Location',
        '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_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': v8_utilities.origin_trial_enabled_function(attribute),  # [OriginTrialEnabled]
        'origin_trial_enabled_per_interface': v8_utilities.origin_trial_enabled_function(interface),  # [OriginTrialEnabled]
        'origin_trial_name': extended_attributes.get('OriginTrialEnabled'),  # [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]
        'should_be_exposed_to_script': not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        '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(attribute):
        setter_context(interface, attribute, context)

    return context
Ejemplo n.º 17
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/ScriptCallStackFactory.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')
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/core/v8/BindingSecurity.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/dom/custom/CustomElementProcessingStack.h')

    is_do_not_check_security = 'DoNotCheckSecurity' in extended_attributes

    is_check_security_for_frame = (
        has_extended_attribute_value(interface, 'CheckSecurity', 'Frame') and
        not is_do_not_check_security)

    is_check_security_for_window = (
        has_extended_attribute_value(interface, 'CheckSecurity', 'Window') and
        not is_do_not_check_security)

    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('core/dom/DOMArrayBuffer.h')
        includes.add('core/dom/MessagePort.h')

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

    return {
        'activity_logging_world_list': v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments': [argument_context(interface, method, argument, index, is_visible=is_visible)
                      for index, argument in enumerate(arguments)],
        'argument_declarations_for_private_script':
            argument_declarations_for_private_script(interface, method),
        'conditional_string': v8_utilities.conditional_string(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]
        'exposed_test': v8_utilities.exposed(method, interface),  # [Exposed]
        # TODO(yukishiino): Retire has_custom_registration flag.  Should be
        # replaced with V8DOMConfiguration::PropertyLocationConfiguration.
        'has_custom_registration':
            is_static or
            is_unforgeable(interface, method) or
            v8_utilities.has_extended_attribute(
                method, CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES),
        'has_exception_state':
            is_raises_exception or
            is_check_security_for_frame or
            is_check_security_for_window or
            any(argument for argument in arguments
                if (argument.idl_type.name == 'SerializedScriptValue' or
                    argument_conversion_needs_exception_state(method, argument))),
        '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_check_security_for_frame': is_check_security_for_frame,
        'is_check_security_for_node': is_check_security_for_node,
        'is_check_security_for_window': is_check_security_for_window,
        '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_do_not_check_signature': 'DoNotCheckSignature' in extended_attributes,
        'is_explicit_nullable': idl_type.is_explicit_nullable,
        'is_implemented_in_private_script': is_implemented_in_private_script,
        '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_read_only': is_unforgeable(interface, method),
        'is_static': is_static,
        '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,
        '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]
        '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 18
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
Ejemplo n.º 19
0
def generate_attribute(interface, attribute):
    idl_type = attribute.idl_type
    extended_attributes = attribute.extended_attributes

    v8_types.add_includes_for_type(idl_type)

    # [CheckSecurity]
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/v8/BindingSecurity.h')
    # [Custom]
    has_custom_getter = ('Custom' in extended_attributes
                         and extended_attributes['Custom'] in [None, 'Getter'])
    has_custom_setter = (not attribute.is_read_only
                         and 'Custom' in extended_attributes
                         and extended_attributes['Custom'] in [None, 'Setter'])
    # [Reflect]
    is_reflect = 'Reflect' in extended_attributes
    if is_reflect:
        includes.add('core/dom/custom/CustomElementCallbackDispatcher.h')

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

    contents = {
        'access_control_list':
        access_control_list(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]
        'cached_attribute_validation_method':
        extended_attributes.get('CachedAttribute'),
        'conditional_string':
        v8_utilities.conditional_string(attribute),
        'constructor_type':
        v8_types.constructor_type(idl_type)
        if is_constructor_attribute(attribute) else None,
        'cpp_name':
        cpp_name(attribute),
        'cpp_type':
        v8_types.cpp_type(idl_type),
        'deprecate_as':
        v8_utilities.deprecate_as(attribute),  # [DeprecateAs]
        'enum_validation_expression':
        v8_utilities.enum_validation_expression(idl_type),
        'has_custom_getter':
        has_custom_getter,
        'has_custom_setter':
        has_custom_setter,
        'has_strict_type_checking':
        ('StrictTypeChecking' in extended_attributes
         and v8_types.is_interface_type(idl_type)),
        'idl_type':
        idl_type,
        'is_call_with_execution_context':
        v8_utilities.has_extended_attribute_value(attribute, 'CallWith',
                                                  'ExecutionContext'),
        'is_check_security_for_node':
        is_check_security_for_node,
        'is_expose_js_accessors':
        'ExposeJSAccessors' in extended_attributes,
        'is_getter_raises_exception': (  # [RaisesException]
            'RaisesException' in extended_attributes
            and extended_attributes['RaisesException'] in [None, 'Getter']),
        'is_initialized_by_event_constructor':
        'InitializedByEventConstructor' in extended_attributes,
        'is_keep_alive_for_gc':
        is_keep_alive_for_gc(attribute),
        'is_nullable':
        attribute.is_nullable,
        'is_per_world_bindings':
        'PerWorldBindings' in extended_attributes,
        'is_read_only':
        attribute.is_read_only,
        'is_reflect':
        is_reflect,
        'is_replaceable':
        'Replaceable' in attribute.extended_attributes,
        'is_setter_raises_exception':
        ('RaisesException' in extended_attributes
         and extended_attributes['RaisesException'] in [None, 'Setter']),
        'is_static':
        attribute.is_static,
        'is_unforgeable':
        'Unforgeable' in extended_attributes,
        'measure_as':
        v8_utilities.measure_as(attribute),  # [MeasureAs]
        'name':
        attribute.name,
        'per_context_enabled_function':
        v8_utilities.per_context_enabled_function_name(
            attribute),  # [PerContextEnabled]
        'property_attributes':
        property_attributes(attribute),
        'setter_callback':
        setter_callback_name(interface, attribute),
        'v8_type':
        v8_types.v8_type(idl_type),
        'runtime_enabled_function':
        v8_utilities.runtime_enabled_function_name(
            attribute),  # [RuntimeEnabled]
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings'
        in extended_attributes else [''],  # [PerWorldBindings]
    }

    if is_constructor_attribute(attribute):
        return contents
    if not has_custom_getter:
        generate_getter(interface, attribute, contents)
    if not (attribute.is_read_only or has_custom_setter):
        contents.update({
            'cpp_setter':
            setter_expression(interface, attribute, contents),
            'v8_value_to_local_cpp_value':
            v8_types.v8_value_to_local_cpp_value(idl_type, extended_attributes,
                                                 'jsValue', 'cppValue'),
        })

    return contents
Ejemplo n.º 20
0
def method_context(interface, method):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name
    return_promise = idl_type.name == 'Promise'

    idl_type.add_includes_for_type()
    this_cpp_value = cpp_value(interface, method, len(arguments))

    def function_template():
        if is_static:
            return 'functionTemplate'
        if 'Unforgeable' in extended_attributes:
            return 'instanceTemplate'
        return 'prototypeTemplate'

    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/ScriptCallStackFactory.h',
                         'core/inspector/ScriptArguments.h'])
    is_call_with_script_state = has_extended_attribute_value(method, 'CallWith', 'ScriptState')
    if is_call_with_script_state:
        includes.add('bindings/core/v8/ScriptState.h')
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/core/v8/BindingSecurity.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/dom/custom/CustomElementCallbackDispatcher.h')

    is_check_security_for_frame = (
        'CheckSecurity' in interface.extended_attributes and
        'DoNotCheckSecurity' not in extended_attributes)
    is_raises_exception = 'RaisesException' in extended_attributes

    arguments_need_try_catch = (
        any(argument_needs_try_catch(argument, return_promise)
            for argument in arguments))

    return {
        'activity_logging_world_list': v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments': [argument_context(interface, method, argument, index)
                      for index, argument in enumerate(arguments)],
        'argument_declarations_for_private_script':
            argument_declarations_for_private_script(interface, method),
        'arguments_need_try_catch': arguments_need_try_catch,
        'conditional_string': v8_utilities.conditional_string(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]
        'exposed_test': v8_utilities.exposed(method, interface),  # [Exposed]
        'function_template': function_template(),
        'has_custom_registration': is_static or
            v8_utilities.has_extended_attribute(
                method, CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES),
        'has_exception_state':
            is_raises_exception or
            is_check_security_for_frame or
            interface.name == 'EventTarget' or  # FIXME: merge with is_check_security_for_frame http://crbug.com/383699
            any(argument for argument in arguments
                if argument.idl_type.name == 'SerializedScriptValue' or
                   argument.idl_type.may_raise_exception_on_conversion),
        '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_check_security_for_frame': is_check_security_for_frame,
        'is_check_security_for_node': is_check_security_for_node,
        'is_custom': 'Custom' in extended_attributes,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        'is_do_not_check_security': 'DoNotCheckSecurity' in extended_attributes,
        'is_do_not_check_signature': 'DoNotCheckSignature' in extended_attributes,
        'is_explicit_nullable': idl_type.is_explicit_nullable,
        'is_implemented_in_private_script': is_implemented_in_private_script,
        'is_partial_interface_member':
            'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_raises_exception': is_raises_exception,
        'is_read_only': 'Unforgeable' in extended_attributes,
        'is_static': is_static,
        'is_variadic': arguments and arguments[-1].is_variadic,
        'measure_as': v8_utilities.measure_as(method),  # [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]),
        'only_exposed_to_private_script': is_only_exposed_to_private_script,
        'per_context_enabled_function': v8_utilities.per_context_enabled_function_name(method),  # [PerContextEnabled]
        'private_script_v8_value_to_local_cpp_value': idl_type.v8_value_to_local_cpp_value(
            extended_attributes, 'v8Value', 'cppValue', isolate='scriptState->isolate()', used_in_private_script=True),
        'property_attributes': property_attributes(method),
        'runtime_enabled_function': v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
        'should_be_exposed_to_script': not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        'signature': 'v8::Local<v8::Signature>()' if is_static or 'DoNotCheckSignature' in extended_attributes else 'defaultSignature',
        'union_arguments': idl_type.union_arguments,
        '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),
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings' in extended_attributes else [''],  # [PerWorldBindings],
    }
Ejemplo n.º 21
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

    idl_type.add_includes_for_type()
    this_cpp_value = cpp_value(interface, method, len(arguments))

    def function_template():
        if is_static:
            return 'functionTemplate'
        if 'Unforgeable' in extended_attributes:
            return 'instanceTemplate'
        return 'prototypeTemplate'

    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/ScriptCallStackFactory.h',
            'core/inspector/ScriptArguments.h'
        ])
    is_call_with_script_state = has_extended_attribute_value(
        method, 'CallWith', 'ScriptState')
    if is_call_with_script_state:
        includes.add('bindings/core/v8/ScriptState.h')
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/core/v8/BindingSecurity.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/dom/custom/CustomElementProcessingStack.h')

    is_do_not_check_security = 'DoNotCheckSecurity' in extended_attributes

    is_check_security_for_frame = (has_extended_attribute_value(
        interface, 'CheckSecurity', 'Frame') and not is_do_not_check_security)

    is_check_security_for_window = (has_extended_attribute_value(
        interface, 'CheckSecurity', 'Window') and not is_do_not_check_security)

    is_raises_exception = 'RaisesException' in extended_attributes

    return {
        'activity_logging_world_list':
        v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments': [
            argument_context(interface, method, argument, index)
            for index, argument in enumerate(arguments)
        ],
        'argument_declarations_for_private_script':
        argument_declarations_for_private_script(interface, method),
        'conditional_string':
        v8_utilities.conditional_string(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]
        'exposed_test':
        v8_utilities.exposed(method, interface),  # [Exposed]
        'function_template':
        function_template(),
        'has_custom_registration':
        is_static or v8_utilities.has_extended_attribute(
            method, CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES),
        'has_exception_state':
        is_raises_exception or is_check_security_for_frame
        or is_check_security_for_window
        or any(argument for argument in arguments if (
            argument.idl_type.name == 'SerializedScriptValue'
            or argument_conversion_needs_exception_state(method, argument))),
        '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_check_security_for_frame':
        is_check_security_for_frame,
        'is_check_security_for_node':
        is_check_security_for_node,
        'is_check_security_for_window':
        is_check_security_for_window,
        'is_custom':
        'Custom' in extended_attributes,
        'is_custom_element_callbacks':
        is_custom_element_callbacks,
        'is_do_not_check_security':
        is_do_not_check_security,
        'is_do_not_check_signature':
        'DoNotCheckSignature' in extended_attributes,
        'is_explicit_nullable':
        idl_type.is_explicit_nullable,
        'is_implemented_in_private_script':
        is_implemented_in_private_script,
        'is_partial_interface_member':
        'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings':
        'PerWorldBindings' in extended_attributes,
        'is_raises_exception':
        is_raises_exception,
        'is_read_only':
        'Unforgeable' in extended_attributes,
        'is_static':
        is_static,
        'is_variadic':
        arguments and arguments[-1].is_variadic,
        'measure_as':
        v8_utilities.measure_as(method),  # [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]),
        'only_exposed_to_private_script':
        is_only_exposed_to_private_script,
        'per_context_enabled_function':
        v8_utilities.per_context_enabled_function_name(
            method),  # [PerContextEnabled]
        'private_script_v8_value_to_local_cpp_value':
        idl_type.v8_value_to_local_cpp_value(extended_attributes,
                                             'v8Value',
                                             'cppValue',
                                             isolate='scriptState->isolate()',
                                             used_in_private_script=True),
        'property_attributes':
        property_attributes(method),
        'runtime_enabled_function':
        v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
        'should_be_exposed_to_script':
        not (is_implemented_in_private_script
             and is_only_exposed_to_private_script),
        'signature':
        'v8::Local<v8::Signature>()' if is_static or 'DoNotCheckSignature'
        in extended_attributes else 'defaultSignature',
        '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 22
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
Ejemplo n.º 23
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 24
0
def attribute_context(interface, 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_frame = (
        has_extended_attribute_value(interface, 'CheckSecurity', 'Frame') and
        not is_do_not_check_security)
    is_check_security_for_node = (
        has_extended_attribute_value(attribute, 'CheckSecurity', 'Node'))
    is_check_security_for_window = (
        has_extended_attribute_value(interface, 'CheckSecurity', 'Window') and
        not is_do_not_check_security)
    if is_check_security_for_frame or is_check_security_for_node or is_check_security_for_window:
        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
    # [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/CustomElementProcessingStack.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)

    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')

    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,
        'conditional_string': v8_utilities.conditional_string(attribute),
        '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(attribute),
        'idl_type': str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        '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_check_security_for_frame': is_check_security_for_frame,
        'is_check_security_for_node': is_check_security_for_node,
        'is_check_security_for_window': is_check_security_for_window,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        # TODO(yukishiino): Make all DOM attributes accessor-type properties.
        'is_data_type_property': constructor_type or interface.name == 'Window' or interface.name == 'Location',
        '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_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),
        '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]
        'should_be_exposed_to_script': not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        '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(attribute):
        setter_context(interface, attribute, context)

    return context
Ejemplo n.º 25
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
Ejemplo n.º 26
0
def attribute_context(interface, attribute):
    idl_type = attribute.idl_type
    base_idl_type = idl_type.base_type
    extended_attributes = attribute.extended_attributes

    idl_type.add_includes_for_type()

    # [CheckSecurity]
    is_check_security_for_node = "CheckSecurity" in extended_attributes
    if is_check_security_for_node:
        includes.add("bindings/core/v8/BindingSecurity.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/CustomElementProcessingStack.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)
    # [TypeChecking]
    has_type_checking_unrestricted = (
        has_extended_attribute_value(interface, "TypeChecking", "Unrestricted")
        or has_extended_attribute_value(attribute, "TypeChecking", "Unrestricted")
    ) and idl_type.name in ("Float", "Double")
    # [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

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

    context = {
        "access_control_list": access_control_list(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": extended_attributes.get("CachedAttribute"),
        "conditional_string": v8_utilities.conditional_string(attribute),
        "constructor_type": idl_type.constructor_type_name if is_constructor_attribute(attribute) else None,
        "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_validation_expression": idl_type.enum_validation_expression,
        "exposed_test": v8_utilities.exposed(attribute, interface),  # [Exposed]
        "has_custom_getter": has_custom_getter(attribute),
        "has_custom_setter": has_custom_setter(attribute),
        "has_type_checking_unrestricted": has_type_checking_unrestricted,
        "idl_type": str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        "is_call_with_execution_context": v8_utilities.has_extended_attribute_value(
            attribute, "CallWith", "ExecutionContext"
        ),
        "is_call_with_script_state": v8_utilities.has_extended_attribute_value(attribute, "CallWith", "ScriptState"),
        "is_check_security_for_node": is_check_security_for_node,
        "is_custom_element_callbacks": is_custom_element_callbacks,
        "is_expose_js_accessors": "ExposeJSAccessors" in extended_attributes,
        "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_initialized_by_event_constructor": "InitializedByEventConstructor" in extended_attributes,
        "is_keep_alive_for_gc": is_keep_alive_for_gc(interface, attribute),
        "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_read_only": attribute.is_read_only,
        "is_reflect": is_reflect,
        "is_replaceable": "Replaceable" in attribute.extended_attributes,
        "is_static": attribute.is_static,
        "is_url": "URL" in extended_attributes,
        "is_unforgeable": "Unforgeable" in extended_attributes,
        "use_output_parameter_for_result": idl_type.use_output_parameter_for_result,
        "measure_as": v8_utilities.measure_as(attribute),  # [MeasureAs]
        "name": attribute.name,
        "only_exposed_to_private_script": is_only_exposed_to_private_script,
        "per_context_enabled_function": v8_utilities.per_context_enabled_function_name(
            attribute
        ),  # [PerContextEnabled]
        "private_script_v8_value_to_local_cpp_value": idl_type.v8_value_to_local_cpp_value(
            extended_attributes, "v8Value", "cppValue", isolate="scriptState->isolate()", used_in_private_script=True
        ),
        "property_attributes": property_attributes(attribute),
        "put_forwards": "PutForwards" in extended_attributes,
        "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]
        "setter_callback": setter_callback_name(interface, attribute),
        "should_be_exposed_to_script": not (is_implemented_in_private_script and is_only_exposed_to_private_script),
        "world_suffixes": ["", "ForMainWorld"]
        if "PerWorldBindings" in extended_attributes
        else [""],  # [PerWorldBindings]
    }

    if is_constructor_attribute(attribute):
        constructor_getter_context(interface, attribute, context)
        return context
    if not has_custom_getter(attribute):
        getter_context(interface, attribute, context)
    if not has_custom_setter(attribute) and (not attribute.is_read_only or "PutForwards" in extended_attributes):
        setter_context(interface, attribute, context)

    return context
Ejemplo n.º 27
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 28
0
def generate_attribute(interface, attribute):
    idl_type = attribute.idl_type
    base_idl_type = idl_type.base_type
    extended_attributes = attribute.extended_attributes

    idl_type.add_includes_for_type()

    # [CheckSecurity]
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/v8/BindingSecurity.h')
    # [Custom]
    has_custom_getter = ('Custom' in extended_attributes
                         and extended_attributes['Custom'] in [None, 'Getter'])
    has_custom_setter = (not attribute.is_read_only
                         and 'Custom' in extended_attributes
                         and extended_attributes['Custom'] in [None, 'Setter'])
    # [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/CustomElementCallbackDispatcher.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)
    # [RaisesException], [RaisesException=Setter]
    is_setter_raises_exception = ('RaisesException' in extended_attributes
                                  and extended_attributes['RaisesException']
                                  in [None, 'Setter'])
    # [TypeChecking]
    has_type_checking_interface = ((
        has_extended_attribute_value(interface, 'TypeChecking', 'Interface') or
        has_extended_attribute_value(attribute, 'TypeChecking', 'Interface'))
                                   and idl_type.is_wrapper_type)
    has_type_checking_nullable = (
        (has_extended_attribute_value(interface, 'TypeChecking', 'Nullable') or
         has_extended_attribute_value(attribute, 'TypeChecking', 'Nullable'))
        and idl_type.is_wrapper_type)
    has_type_checking_unrestricted = ((
        has_extended_attribute_value(interface, 'TypeChecking', 'Unrestricted')
        or has_extended_attribute_value(attribute, 'TypeChecking',
                                        'Unrestricted'))
                                      and idl_type.name in ('Float', 'Double'))

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

    contents = {
        'access_control_list': access_control_list(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_include_old_value_for_setter': 'LogPreviousValue' in extended_attributes,  # [ActivityLogging]
        'cached_attribute_validation_method': extended_attributes.get('CachedAttribute'),
        'conditional_string': v8_utilities.conditional_string(attribute),
        'constructor_type': idl_type.constructor_type_name
                            if is_constructor_attribute(attribute) else None,
        'cpp_name': cpp_name(attribute),
        'cpp_type': idl_type.cpp_type,
        'cpp_value_to_v8_value': idl_type.cpp_value_to_v8_value(cpp_value='original', creation_context='info.Holder()'),
        'deprecate_as': v8_utilities.deprecate_as(attribute),  # [DeprecateAs]
        'enum_validation_expression': idl_type.enum_validation_expression,
        'has_custom_getter': has_custom_getter,
        'has_custom_setter': has_custom_setter,
        'has_setter_exception_state':
            is_setter_raises_exception or has_type_checking_interface or
            has_type_checking_nullable or has_type_checking_unrestricted or
            idl_type.is_integer_type,
        'has_type_checking_interface': has_type_checking_interface,
        'has_type_checking_nullable': has_type_checking_nullable,
        'has_type_checking_unrestricted': has_type_checking_unrestricted,
        'idl_type': str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        'is_call_with_execution_context': v8_utilities.has_extended_attribute_value(attribute, 'CallWith', 'ExecutionContext'),
        'is_call_with_script_state': v8_utilities.has_extended_attribute_value(attribute, 'CallWith', 'ScriptState'),
        'is_check_security_for_node': is_check_security_for_node,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        'is_expose_js_accessors': 'ExposeJSAccessors' in extended_attributes,
        'is_getter_raises_exception':  # [RaisesException]
            'RaisesException' in extended_attributes and
            extended_attributes['RaisesException'] in (None, 'Getter'),
        'is_initialized_by_event_constructor':
            'InitializedByEventConstructor' in extended_attributes,
        'is_keep_alive_for_gc': is_keep_alive_for_gc(interface, attribute),
        'is_nullable': attribute.idl_type.is_nullable,
        'is_partial_interface_member':
            'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_read_only': attribute.is_read_only,
        'is_reflect': is_reflect,
        'is_replaceable': 'Replaceable' in attribute.extended_attributes,
        'is_setter_call_with_execution_context': v8_utilities.has_extended_attribute_value(attribute, 'SetterCallWith', 'ExecutionContext'),
        'is_setter_raises_exception': is_setter_raises_exception,
        'is_static': attribute.is_static,
        'is_url': 'URL' in extended_attributes,
        'is_unforgeable': 'Unforgeable' in extended_attributes,
        'measure_as': v8_utilities.measure_as(attribute),  # [MeasureAs]
        'name': attribute.name,
        'per_context_enabled_function': v8_utilities.per_context_enabled_function_name(attribute),  # [PerContextEnabled]
        'property_attributes': property_attributes(attribute),
        'put_forwards': 'PutForwards' in extended_attributes,
        'reflect_empty': extended_attributes.get('ReflectEmpty'),
        'reflect_invalid': extended_attributes.get('ReflectInvalid', ''),
        'reflect_missing': extended_attributes.get('ReflectMissing'),
        'reflect_only': extended_attributes['ReflectOnly'].split('|')
            if 'ReflectOnly' in extended_attributes else None,
        'setter_callback': setter_callback_name(interface, attribute),
        'v8_type': v8_types.v8_type(base_idl_type),
        'runtime_enabled_function': v8_utilities.runtime_enabled_function_name(attribute),  # [RuntimeEnabled]
        'world_suffixes': ['', 'ForMainWorld']
                          if 'PerWorldBindings' in extended_attributes
                          else [''],  # [PerWorldBindings]
    }

    if is_constructor_attribute(attribute):
        generate_constructor_getter(interface, attribute, contents)
        return contents
    if not has_custom_getter:
        generate_getter(interface, attribute, contents)
    if (not has_custom_setter and
        (not attribute.is_read_only or 'PutForwards' in extended_attributes)):
        generate_setter(interface, attribute, contents)

    return contents
Ejemplo n.º 29
0
def generate_attribute(interface, attribute):
    idl_type = attribute.idl_type
    base_idl_type = idl_type.base_type
    extended_attributes = attribute.extended_attributes

    idl_type.add_includes_for_type()

    # [CheckSecurity]
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/v8/BindingSecurity.h')
    # [Custom]
    has_custom_getter = ('Custom' in extended_attributes and
                         extended_attributes['Custom'] in [None, 'Getter'])
    has_custom_setter = (not attribute.is_read_only and
                         'Custom' in extended_attributes and
                         extended_attributes['Custom'] in [None, 'Setter'])
    # [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/CustomElementCallbackDispatcher.h')
    # [RaisesException], [RaisesException=Setter]
    is_setter_raises_exception = (
        'RaisesException' in extended_attributes and
        extended_attributes['RaisesException'] in [None, 'Setter'])
    # [StrictTypeChecking]
    has_strict_type_checking = (
        ('StrictTypeChecking' in extended_attributes or
         'StrictTypeChecking' in interface.extended_attributes) and
        idl_type.is_wrapper_type)

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

    contents = {
        'access_control_list': access_control_list(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]
        'cached_attribute_validation_method': extended_attributes.get('CachedAttribute'),
        'conditional_string': v8_utilities.conditional_string(attribute),
        'constructor_type': idl_type.constructor_type_name
                            if is_constructor_attribute(attribute) else None,
        'cpp_name': cpp_name(attribute),
        'cpp_type': idl_type.cpp_type,
        'deprecate_as': v8_utilities.deprecate_as(attribute),  # [DeprecateAs]
        'enum_validation_expression': idl_type.enum_validation_expression,
        'has_custom_getter': has_custom_getter,
        'has_custom_setter': has_custom_setter,
        'has_strict_type_checking': has_strict_type_checking,
        'idl_type': str(idl_type),  # need trailing [] on array for Dictionary::ConversionContext::setConversionType
        'is_call_with_execution_context': v8_utilities.has_extended_attribute_value(attribute, 'CallWith', 'ExecutionContext'),
        'is_call_with_new_script_state': v8_utilities.has_extended_attribute_value(attribute, 'CallWith', 'NewScriptState'),
        'is_check_security_for_node': is_check_security_for_node,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        'is_expose_js_accessors': 'ExposeJSAccessors' in extended_attributes,
        'is_getter_raises_exception': (  # [RaisesException]
            'RaisesException' in extended_attributes and
            extended_attributes['RaisesException'] in [None, 'Getter']),
        'is_initialized_by_event_constructor':
            'InitializedByEventConstructor' in extended_attributes,
        'is_keep_alive_for_gc': is_keep_alive_for_gc(interface, attribute),
        'is_nullable': attribute.idl_type.is_nullable,
        'is_partial_interface_member':
            'PartialInterfaceImplementedAs' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_read_only': attribute.is_read_only,
        'is_reflect': is_reflect,
        'is_replaceable': 'Replaceable' in attribute.extended_attributes,
        'is_setter_call_with_execution_context': v8_utilities.has_extended_attribute_value(attribute, 'SetterCallWith', 'ExecutionContext'),
        'is_setter_raises_exception': is_setter_raises_exception,
        'has_setter_exception_state': (
            is_setter_raises_exception or has_strict_type_checking or
            idl_type.is_integer_type),
        'is_static': attribute.is_static,
        'is_url': 'URL' in extended_attributes,
        'is_unforgeable': 'Unforgeable' in extended_attributes,
        'measure_as': v8_utilities.measure_as(attribute),  # [MeasureAs]
        'name': attribute.name,
        'per_context_enabled_function': v8_utilities.per_context_enabled_function_name(attribute),  # [PerContextEnabled]
        'property_attributes': property_attributes(attribute),
        'put_forwards': 'PutForwards' in extended_attributes,
        'reflect_empty': extended_attributes.get('ReflectEmpty'),
        'reflect_invalid': extended_attributes.get('ReflectInvalid', ''),
        'reflect_missing': extended_attributes.get('ReflectMissing'),
        'reflect_only': extended_attributes['ReflectOnly'].split('|')
            if 'ReflectOnly' in extended_attributes else None,
        'setter_callback': setter_callback_name(interface, attribute),
        'v8_type': v8_types.v8_type(base_idl_type),
        'runtime_enabled_function': v8_utilities.runtime_enabled_function_name(attribute),  # [RuntimeEnabled]
        'world_suffixes': ['', 'ForMainWorld']
                          if 'PerWorldBindings' in extended_attributes
                          else [''],  # [PerWorldBindings]
    }

    if is_constructor_attribute(attribute):
        generate_constructor_getter(interface, attribute, contents)
        return contents
    if not has_custom_getter:
        generate_getter(interface, attribute, contents)
    if (not has_custom_setter and
        (not attribute.is_read_only or 'PutForwards' in extended_attributes)):
        generate_setter(interface, attribute, contents)

    return contents
Ejemplo n.º 30
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 31
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
Ejemplo n.º 32
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 33
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 34
0
def generate_method(interface, method):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

    v8_types.add_includes_for_type(idl_type)
    this_cpp_value = cpp_value(interface, method, len(arguments))

    def function_template():
        if is_static:
            return 'functionTemplate'
        if 'Unforgeable' in extended_attributes:
            return 'instanceTemplate'
        return 'prototypeTemplate'

    is_call_with_script_arguments = has_extended_attribute_value(method, 'CallWith', 'ScriptArguments')
    if is_call_with_script_arguments:
        includes.update(['bindings/v8/ScriptCallStackFactory.h',
                         'core/inspector/ScriptArguments.h'])
    is_call_with_script_state = has_extended_attribute_value(method, 'CallWith', 'ScriptState')
    if is_call_with_script_state:
        includes.add('bindings/v8/ScriptState.h')
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/v8/BindingSecurity.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/dom/custom/CustomElementCallbackDispatcher.h')

    is_check_security_for_frame = (
        'CheckSecurity' in interface.extended_attributes and
        'DoNotCheckSecurity' not in extended_attributes)
    is_raises_exception = 'RaisesException' in extended_attributes

    return {
        'activity_logging_world_list': v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments': [generate_argument(interface, method, argument, index)
                      for index, argument in enumerate(arguments)],
        'conditional_string': v8_utilities.conditional_string(method),
        'cpp_type': v8_types.cpp_type(idl_type),
        'cpp_value': this_cpp_value,
        'deprecate_as': v8_utilities.deprecate_as(method),  # [DeprecateAs]
        'do_not_check_signature': not(is_static or
            v8_utilities.has_extended_attribute(method,
                ['DoNotCheckSecurity', 'DoNotCheckSignature', 'NotEnumerable',
                 'ReadOnly', 'RuntimeEnabled', 'Unforgeable'])),
        'function_template': function_template(),
        'idl_type': idl_type,
        'has_exception_state':
            is_raises_exception or
            is_check_security_for_frame or
            any(argument for argument in arguments
                if argument.idl_type == 'SerializedScriptValue' or
                   v8_types.is_integer_type(argument.idl_type)) or
            name in ['addEventListener', 'removeEventListener'],
        '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_check_security_for_frame': is_check_security_for_frame,
        'is_check_security_for_node': is_check_security_for_node,
        'is_custom': 'Custom' in extended_attributes,
        'is_custom_element_callbacks': is_custom_element_callbacks,
        'is_do_not_check_security': 'DoNotCheckSecurity' in extended_attributes,
        'is_do_not_check_signature': 'DoNotCheckSignature' in extended_attributes,
        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
        'is_raises_exception': is_raises_exception,
        'is_read_only': 'ReadOnly' in extended_attributes,
        'is_static': is_static,
        'is_strict_type_checking':
            'StrictTypeChecking' in extended_attributes or
            'StrictTypeChecking' in interface.extended_attributes,
        'is_variadic': arguments and arguments[-1].is_variadic,
        'measure_as': v8_utilities.measure_as(method),  # [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]),
        'per_context_enabled_function': v8_utilities.per_context_enabled_function_name(method),  # [PerContextEnabled]
        'property_attributes': property_attributes(method),
        'runtime_enabled_function': v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
        'signature': 'v8::Local<v8::Signature>()' if is_static or 'DoNotCheckSignature' in extended_attributes else 'defaultSignature',
        'union_arguments': union_arguments(idl_type),
        'v8_set_return_value_for_main_world': v8_set_return_value(interface.name, method, this_cpp_value, for_main_world=True),
        'v8_set_return_value': v8_set_return_value(interface.name, method, this_cpp_value),
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings' in extended_attributes else [''],  # [PerWorldBindings]
    }
Ejemplo n.º 35
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
Ejemplo n.º 36
0
def generate_method(interface, method):
    arguments = method.arguments
    extended_attributes = method.extended_attributes
    idl_type = method.idl_type
    is_static = method.is_static
    name = method.name

    idl_type.add_includes_for_type()
    this_cpp_value = cpp_value(interface, method, len(arguments))

    def function_template():
        if is_static:
            return 'functionTemplate'
        if 'Unforgeable' in extended_attributes:
            return 'instanceTemplate'
        return 'prototypeTemplate'

    is_call_with_script_arguments = has_extended_attribute_value(
        method, 'CallWith', 'ScriptArguments')
    if is_call_with_script_arguments:
        includes.update([
            'bindings/v8/ScriptCallStackFactory.h',
            'core/inspector/ScriptArguments.h'
        ])
    is_call_with_script_state = has_extended_attribute_value(
        method, 'CallWith', 'ScriptState')
    if is_call_with_script_state:
        includes.add('bindings/v8/ScriptState.h')
    is_check_security_for_node = 'CheckSecurity' in extended_attributes
    if is_check_security_for_node:
        includes.add('bindings/v8/BindingSecurity.h')
    is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
    if is_custom_element_callbacks:
        includes.add('core/dom/custom/CustomElementCallbackDispatcher.h')

    has_event_listener_argument = any(
        argument for argument in arguments
        if argument.idl_type.name == 'EventListener')
    is_check_security_for_frame = (
        'CheckSecurity' in interface.extended_attributes
        and 'DoNotCheckSecurity' not in extended_attributes)
    is_raises_exception = 'RaisesException' in extended_attributes

    arguments_need_try_catch = any(
        argument_needs_try_catch(argument) for argument in arguments)

    return {
        'activity_logging_world_list':
        v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
        'arguments': [
            generate_argument(interface, method, argument, index)
            for index, argument in enumerate(arguments)
        ],
        'arguments_need_try_catch':
        arguments_need_try_catch,
        'conditional_string':
        v8_utilities.conditional_string(method),
        'cpp_type':
        idl_type.cpp_type,
        'cpp_value':
        this_cpp_value,
        'custom_registration_extended_attributes':
        CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES.intersection(
            extended_attributes.iterkeys()),
        'deprecate_as':
        v8_utilities.deprecate_as(method),  # [DeprecateAs]
        'function_template':
        function_template(),
        'has_custom_registration':
        is_static or v8_utilities.has_extended_attribute(
            method, CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES),
        'has_event_listener_argument':
        has_event_listener_argument,
        'has_exception_state':
        has_event_listener_argument or is_raises_exception
        or is_check_security_for_frame
        or any(argument for argument in arguments if argument.idl_type.name in
               ('ByteString', 'ScalarValueString',
                'SerializedScriptValue') or argument.idl_type.is_integer_type),
        '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_check_security_for_frame':
        is_check_security_for_frame,
        'is_check_security_for_node':
        is_check_security_for_node,
        'is_custom':
        'Custom' in extended_attributes,
        'is_custom_element_callbacks':
        is_custom_element_callbacks,
        'is_do_not_check_security':
        'DoNotCheckSecurity' in extended_attributes,
        'is_do_not_check_signature':
        'DoNotCheckSignature' 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_read_only':
        'ReadOnly' in extended_attributes,
        'is_static':
        is_static,
        'is_variadic':
        arguments and arguments[-1].is_variadic,
        'measure_as':
        v8_utilities.measure_as(method),  # [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]),
        'per_context_enabled_function':
        v8_utilities.per_context_enabled_function_name(
            method),  # [PerContextEnabled]
        'property_attributes':
        property_attributes(method),
        'runtime_enabled_function':
        v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
        'signature':
        'v8::Local<v8::Signature>()' if is_static or 'DoNotCheckSignature'
        in extended_attributes else 'defaultSignature',
        'union_arguments':
        idl_type.union_arguments,
        'v8_set_return_value_for_main_world':
        v8_set_return_value(interface.name,
                            method,
                            this_cpp_value,
                            for_main_world=True),
        'v8_set_return_value':
        v8_set_return_value(interface.name, method, this_cpp_value),
        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings'
        in extended_attributes else [''],  # [PerWorldBindings]
    }