def method_context()

in bindings/scripts/v8_methods.py [0:0]


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],
    }