def callback_interface_context(callback_interface):
includes.clear()
includes.update(CALLBACK_INTERFACE_CPP_INCLUDES)
return {
'conditional_string': ext_utilities.conditional_string(callback_interface),
'cpp_class': callback_interface.name,
'ext_class': ext_utilities.ext_class_name(callback_interface),
'header_includes': set(CALLBACK_INTERFACE_H_INCLUDES),
'methods': [method_context(operation)
for operation in callback_interface.operations],
}
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
arguments_need_try_catch = (any(
argument_needs_try_catch(method, argument) for argument in arguments))
return {
'activity_logging_world_list':
ext_utilities.activity_logging_world_list(method), # [ActivityLogging]
'arguments': [
argument_context(interface, method, argument, index)
for index, argument in enumerate(arguments)
],
'argument_list':
', '.join(arg.name for arg in arguments),
'argument_declarations_for_private_script':
argument_declarations_for_private_script(interface, method),
'arguments_need_try_catch':
arguments_need_try_catch,
'conditional_string':
ext_utilities.conditional_string(method),
'cpp_type': (ext_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':
ext_utilities.deprecate_as(method), # [DeprecateAs]
'exposed_test':
ext_utilities.exposed(method, interface), # [Exposed]
'function_template':
function_template(),
'has_custom_registration':
is_static or ext_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.idl_type.ext_conversion_needs_exception_state),
'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':
ext_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':
ext_utilities.per_context_enabled_function_name(
method), # [PerContextEnabled]
'private_script_ext_value_to_local_cpp_value':
idl_type.ext_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':
ext_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),
'ext_set_return_value':
ext_set_return_value(interface.name, method, this_cpp_value),
'ext_set_return_value_for_main_world':
ext_set_return_value(interface.name,
method,
this_cpp_value,
for_main_world=True),
'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings'
in extended_attributes else [''], # [PerWorldBindings],
}
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': ext_utilities.activity_logging_world_list(attribute, 'Getter'), # [ActivityLogging]
'activity_logging_world_list_for_setter': ext_utilities.activity_logging_world_list(attribute, 'Setter'), # [ActivityLogging]
'activity_logging_world_check': ext_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': ext_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': ext_utilities.deprecate_as(attribute), # [DeprecateAs]
'enum_validation_expression': idl_type.enum_validation_expression,
'exposed_test': ext_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': ext_utilities.has_extended_attribute_value(attribute, 'CallWith', 'ExecutionContext'),
'is_call_with_script_state': ext_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': ext_utilities.measure_as(attribute), # [MeasureAs]
'name': attribute.name,
'only_exposed_to_private_script': is_only_exposed_to_private_script,
'per_context_enabled_function': ext_utilities.per_context_enabled_function_name(attribute), # [PerContextEnabled]
'private_script_ext_value_to_local_cpp_value': idl_type.ext_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': ext_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
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(ext_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/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 = ext_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,
'ext_type': ext_types.ext_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:
ext_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)
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_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'),
'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': ext_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,
'ext_class': ext_utilities.ext_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 = [ext_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 = [ext_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(ext_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
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
arguments_need_try_catch = (
any(argument_needs_try_catch(method, argument)
for argument in arguments))
return {
'activity_logging_world_list': ext_utilities.activity_logging_world_list(method), # [ActivityLogging]
'arguments': [argument_context(interface, method, argument, index)
for index, argument in enumerate(arguments)],
'argument_list': ', '.join(arg.name for arg in arguments),
'argument_declarations_for_private_script':
argument_declarations_for_private_script(interface, method),
'arguments_need_try_catch': arguments_need_try_catch,
'conditional_string': ext_utilities.conditional_string(method),
'cpp_type': (ext_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': ext_utilities.deprecate_as(method), # [DeprecateAs]
'exposed_test': ext_utilities.exposed(method, interface), # [Exposed]
'function_template': function_template(),
'has_custom_registration': is_static or
ext_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.idl_type.ext_conversion_needs_exception_state),
'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': ext_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': ext_utilities.per_context_enabled_function_name(method), # [PerContextEnabled]
'private_script_ext_value_to_local_cpp_value': idl_type.ext_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': ext_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),
'ext_set_return_value': ext_set_return_value(interface.name, method, this_cpp_value),
'ext_set_return_value_for_main_world': ext_set_return_value(interface.name, method, this_cpp_value, for_main_world=True),
'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings' in extended_attributes else [''], # [PerWorldBindings],
}
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': ext_utilities.activity_logging_world_list(attribute, 'Getter'), # [ActivityLogging]
'activity_logging_world_list_for_setter': ext_utilities.activity_logging_world_list(attribute, 'Setter'), # [ActivityLogging]
'activity_logging_world_check': ext_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': ext_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': ext_utilities.deprecate_as(attribute), # [DeprecateAs]
'enum_validation_expression': idl_type.enum_validation_expression,
'exposed_test': ext_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': ext_utilities.has_extended_attribute_value(attribute, 'CallWith', 'ExecutionContext'),
'is_call_with_script_state': ext_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': ext_utilities.measure_as(attribute), # [MeasureAs]
'name': attribute.name,
'only_exposed_to_private_script': is_only_exposed_to_private_script,
'per_context_enabled_function': ext_utilities.per_context_enabled_function_name(attribute), # [PerContextEnabled]
'private_script_ext_value_to_local_cpp_value': idl_type.ext_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': ext_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