def is_keep_alive_for_gc(interface, attribute):
idl_type = attribute.idl_type
base_idl_type = idl_type.base_type
extended_attributes = attribute.extended_attributes
return (
# For readonly attributes, for performance reasons we keep the attribute
# wrapper alive while the owner wrapper is alive, because the attribute
# never changes.
(
attribute.is_read_only
and idl_type.is_wrapper_type
and
# There are some exceptions, however:
not (
# Node lifetime is managed by object grouping.
inherits_interface(interface.name, "Node")
or inherits_interface(base_idl_type, "Node")
or
# A self-reference is unnecessary.
attribute.name == "self"
or
# FIXME: Remove these hard-coded hacks.
base_idl_type in ["EventTarget", "Window"]
or base_idl_type.startswith(("HTML", "SVG"))
)
)
)
def v8_set_return_value(interface_name,
method,
cpp_value,
for_main_world=False):
idl_type = method.idl_type
extended_attributes = method.extended_attributes
if not idl_type or idl_type.name == 'void':
# Constructors and void methods don't have a return type
return None
release = False
# [CallWith=ScriptState], [RaisesException]
if (has_extended_attribute_value(method, 'CallWith', 'ScriptState')
or 'RaisesException' in extended_attributes
or idl_type.is_union_type):
cpp_value = 'result' # use local variable for value
release = idl_type.release
script_wrappable = 'impl' if inherits_interface(interface_name,
'Node') else ''
return idl_type.v8_set_return_value(cpp_value,
extended_attributes,
script_wrappable=script_wrappable,
release=release,
for_main_world=for_main_world)
def dart_set_return_value(interface_name,
method,
cpp_value,
for_main_world=False):
idl_type = method.idl_type
extended_attributes = method.extended_attributes
if not idl_type or idl_type.name == 'void':
# Constructors and void methods don't have a return type
return None
release = False
if idl_type.is_union_type:
release = idl_type.release
# [CallWith=ScriptState], [RaisesException]
# TODO(terry): Disable ScriptState temporarily need to handle.
# if (has_extended_attribute_value(method, 'CallWith', 'ScriptState') or
# 'RaisesException' in extended_attributes or
# idl_type.is_union_type):
# cpp_value = 'result' # use local variable for value
# release = idl_type.release
auto_scope = not 'DartNoAutoScope' in extended_attributes
script_wrappable = 'impl' if inherits_interface(interface_name,
'Node') else ''
return idl_type.dart_set_return_value(cpp_value,
extended_attributes,
script_wrappable=script_wrappable,
release=release,
for_main_world=for_main_world,
auto_scope=auto_scope)
def v8_set_return_value(interface_name, method, cpp_value, for_main_world=False):
idl_type = method.idl_type
extended_attributes = method.extended_attributes
if not idl_type or idl_type.name == "void":
# Constructors and void methods don't have a return type
return None
if (
"ImplementedInPrivateScript" in extended_attributes
and not idl_type.is_wrapper_type
and not idl_type.is_basic_type
):
raise Exception("Private scripts supports only primitive types and DOM wrappers.")
release = False
# [CallWith=ScriptState], [RaisesException]
if use_local_result(method):
if idl_type.is_explicit_nullable:
# result is of type Nullable<T>
cpp_value = "result.get()"
else:
cpp_value = "result"
release = idl_type.release
script_wrappable = "impl" if inherits_interface(interface_name, "Node") else ""
return idl_type.v8_set_return_value(
cpp_value,
extended_attributes,
script_wrappable=script_wrappable,
release=release,
for_main_world=for_main_world,
)
def dart_set_return_value(interface_name, method, cpp_value, for_main_world=False):
idl_type = method.idl_type
extended_attributes = method.extended_attributes
if not idl_type or idl_type.name == 'void':
# Constructors and void methods don't have a return type
return None
release = False
if idl_type.is_union_type:
release = idl_type.release
# [CallWith=ScriptState], [RaisesException]
# TODO(terry): Disable ScriptState temporarily need to handle.
# if (has_extended_attribute_value(method, 'CallWith', 'ScriptState') or
# 'RaisesException' in extended_attributes or
# idl_type.is_union_type):
# cpp_value = 'result' # use local variable for value
# release = idl_type.release
auto_scope = not 'DartNoAutoScope' in extended_attributes
script_wrappable = 'impl' if inherits_interface(interface_name, 'Node') else ''
return idl_type.dart_set_return_value(cpp_value, extended_attributes,
script_wrappable=script_wrappable,
release=release,
for_main_world=for_main_world,
auto_scope=auto_scope)
def ext_set_return_value(interface_name,
method,
cpp_value,
for_main_world=False):
idl_type = method.idl_type
extended_attributes = method.extended_attributes
if not idl_type or idl_type.name == 'void':
# Constructors and void methods don't have a return type
return None
if ('ImplementedInPrivateScript' in extended_attributes
and not idl_type.is_wrapper_type and not idl_type.is_basic_type):
raise Exception(
'Private scripts supports only primitive types and DOM wrappers.')
release = False
# [CallWith=ScriptState], [RaisesException]
if use_local_result(method):
if idl_type.is_explicit_nullable:
# result is of type Nullable<T>
cpp_value = 'result.get()'
else:
cpp_value = 'result'
release = idl_type.release
script_wrappable = 'impl' if inherits_interface(interface_name,
'Node') else ''
return idl_type.ext_set_return_value(cpp_value,
extended_attributes,
script_wrappable=script_wrappable,
release=release,
for_main_world=for_main_world)
def v8_set_return_value(interface_name,
method,
cpp_value,
for_main_world=False):
idl_type = method.idl_type
extended_attributes = method.extended_attributes
if not idl_type or idl_type.name == 'void':
# Constructors and void methods don't have a return type
return None
# [CallWith=ScriptState], [RaisesException]
if use_local_result(method):
if idl_type.is_explicit_nullable:
# result is of type Nullable<T>
cpp_value = 'result.Get()'
else:
cpp_value = 'result'
script_wrappable = 'impl' if inherits_interface(interface_name,
'Node') else ''
return idl_type.v8_set_return_value(cpp_value,
extended_attributes,
script_wrappable=script_wrappable,
for_main_world=for_main_world,
is_static=method.is_static)
def is_keep_alive_for_gc(interface, attribute):
idl_type = attribute.idl_type
base_idl_type = idl_type.base_type
extended_attributes = attribute.extended_attributes
return (
# For readonly attributes, for performance reasons we keep the attribute
# wrapper alive while the owner wrapper is alive, because the attribute
# never changes.
(
attribute.is_read_only and idl_type.is_wrapper_type and
# There are some exceptions, however:
not (
# Node lifetime is managed by object grouping.
inherits_interface(interface.name, 'Node')
or inherits_interface(base_idl_type, 'Node') or
# A self-reference is unnecessary.
attribute.name == 'self' or
# FIXME: Remove these hard-coded hacks.
base_idl_type in ['EventTarget', 'Window']
or base_idl_type.startswith(('HTML', 'SVG')))))
def v8_set_return_value(interface_name, method, cpp_value, for_main_world=False):
idl_type = method.idl_type
extended_attributes = method.extended_attributes
if idl_type.name == 'void':
return None
release = False
# [CallWith=ScriptState], [RaisesException]
if (has_extended_attribute_value(method, 'CallWith', 'ScriptState') or
'RaisesException' in extended_attributes or
idl_type.is_union_type):
cpp_value = 'result' # use local variable for value
release = idl_type.release
script_wrappable = 'imp' if inherits_interface(interface_name, 'Node') else ''
return idl_type.v8_set_return_value(cpp_value, extended_attributes, script_wrappable=script_wrappable, release=release, for_main_world=for_main_world)
def v8_set_return_value(interface_name, method, cpp_value, for_main_world=False):
idl_type = method.idl_type
extended_attributes = method.extended_attributes
if not idl_type or idl_type.name == 'void':
# Constructors and void methods don't have a return type
return None
# [CallWith=ScriptState], [RaisesException]
if use_local_result(method):
if idl_type.is_explicit_nullable:
# result is of type Nullable<T>
cpp_value = 'result.Get()'
else:
cpp_value = 'result'
script_wrappable = 'impl' if inherits_interface(interface_name, 'Node') else ''
return idl_type.v8_set_return_value(cpp_value, extended_attributes, script_wrappable=script_wrappable, for_main_world=for_main_world, is_static=method.is_static)
def v8_set_return_value(interface_name, method, cpp_value, for_main_world=False):
idl_type = method.idl_type
extended_attributes = method.extended_attributes
if not idl_type or idl_type.name == 'void':
# Constructors and void methods don't have a return type
return None
if ('ImplementedInPrivateScript' in extended_attributes and
not idl_type.is_wrapper_type and
not idl_type.is_basic_type):
raise Exception('Private scripts supports only primitive types and DOM wrappers.')
# [CallWith=ScriptState], [RaisesException]
if use_local_result(method):
if idl_type.is_explicit_nullable:
# result is of type Nullable<T>
cpp_value = 'result.get()'
else:
cpp_value = 'result'
script_wrappable = 'impl' if inherits_interface(interface_name, 'Node') else ''
return idl_type.v8_set_return_value(cpp_value, extended_attributes, script_wrappable=script_wrappable, for_main_world=for_main_world, is_static=method.is_static)
def v8_set_return_value(interface_name, method, cpp_value, for_main_world=False):
idl_type = method.idl_type
extended_attributes = method.extended_attributes
if not idl_type or idl_type.name == 'void':
# Constructors and void methods don't have a return type
return None
if ('ImplementedInPrivateScript' in extended_attributes and
not idl_type.is_wrapper_type and
not idl_type.is_basic_type):
raise Exception('Private scripts supports only primitive types and DOM wrappers.')
release = False
# [CallWith=ScriptState], [RaisesException]
if (has_extended_attribute_value(method, 'CallWith', 'ScriptState') or
'ImplementedInPrivateScript' in extended_attributes or
'RaisesException' in extended_attributes or
idl_type.is_union_type):
cpp_value = 'result' # use local variable for value
release = idl_type.release
script_wrappable = 'impl' if inherits_interface(interface_name, 'Node') else ''
return idl_type.v8_set_return_value(cpp_value, extended_attributes, script_wrappable=script_wrappable, release=release, for_main_world=for_main_world)
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
def interface_context(interface):
context = v8_interface.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(dart_types.includes_for_interface(parent_interface))
extended_attributes = interface.extended_attributes
if inherits_interface(interface.name, 'EventTarget'):
includes.update(['bindings/dart_event_listener.h'])
# [SetWrapperReferenceTo]
set_wrapper_reference_to_list = [{
'name': argument.name,
# FIXME: properly should be:
# 'cpp_type': argument.idl_type.cpp_type_args(used_as_rvalue_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,
} 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()
context.update({
'cpp_class': DartUtilities.cpp_name(interface),
'header_includes': header_includes,
'set_wrapper_reference_to_list': set_wrapper_reference_to_list,
'dart_class': dart_types.dart_type(interface.name),
})
# 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.update({'constructor_overloads': overloads_context(constructors)})
# [CustomConstructor]
custom_constructors = [custom_constructor_context(interface, constructor)
for constructor in interface.custom_constructors]
# [NamedConstructor]
named_constructor = generate_named_constructor(interface)
generate_method_native_entries(interface, constructors, 'Constructor')
generate_method_native_entries(interface, custom_constructors, 'Constructor')
if named_constructor:
generate_method_native_entries(interface, [named_constructor],
'Constructor')
event_constructor = None
if context['has_event_constructor']:
event_constructor = {
'native_entries': [
DartUtilities.generate_native_entry(
interface.name, None, 'Constructor', False, 2)],
}
if (context['constructors'] or custom_constructors or context['has_event_constructor'] or
named_constructor):
includes.add('core/frame/LocalDOMWindow.h')
context.update({
'constructors': constructors,
'custom_constructors': custom_constructors,
'event_constructor': event_constructor,
'has_custom_constructor': bool(custom_constructors),
'interface_length':
v8_interface.interface_length(interface, constructors + custom_constructors),
'is_constructor_call_with_document': DartUtilities.has_extended_attribute_value(
interface, 'ConstructorCallWith', 'Document'), # [ConstructorCallWith=Document]
'is_constructor_call_with_execution_context': DartUtilities.has_extended_attribute_value(
interface, 'ConstructorCallWith', 'ExecutionContext'), # [ConstructorCallWith=ExeuctionContext]
'named_constructor': named_constructor,
})
# Attributes
attributes = [dart_attributes.attribute_context(interface, attribute)
for attribute in interface.attributes
if not v8_attributes.is_constructor_attribute(attribute)]
context.update({
'attributes': 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 = [dart_methods.method_context(interface, method)
for method in interface.operations
# Skip anonymous special operations (methods name empty).
if (method.name and
# detect unnamed getters from v8_interface.
method.name != 'anonymousNamedGetter')]
compute_method_overloads_context(methods)
for method in methods:
method['do_generate_method_configuration'] = (
# For overloaded methods, only generate one accessor
('overload_index' not in method or method['overload_index'] == 1))
for method in methods:
assert 'overloads' not in method, 'Dart does not support overloads, %s in %s' % (method['name'], interface.name)
generate_method_native_entries(interface, methods, 'Method')
context.update({
'has_method_configuration': any(method['do_generate_method_configuration'] for method in methods),
'methods': methods,
})
context.update({
'indexed_property_getter': indexed_property_getter(interface),
'indexed_property_setter': indexed_property_setter(interface),
'indexed_property_deleter': v8_interface.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': v8_interface.named_property_deleter(interface),
})
generate_native_entries_for_specials(interface, context)
native_entries = generate_interface_native_entries(context)
context.update({
'native_entries': native_entries,
})
return context
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
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
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
# [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)
# [SetWrapperReferenceFrom]
reachable_node_function = extended_attributes.get(
'SetWrapperReferenceFrom')
if reachable_node_function:
includes.update(['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,
} 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 = {
'cpp_class':
cpp_name(interface),
'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_dependent_lifetime':
is_dependent_lifetime,
'is_exception':
interface.is_exception,
'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',
'parent_interface':
parent_interface,
'reachable_node_function':
reachable_node_function,
'set_wrapper_reference_to_list':
set_wrapper_reference_to_list,
'special_wrap_for':
special_wrap_for,
'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'
]
# [NamedConstructor]
named_constructor = named_constructor_context(interface)
if (constructors or custom_constructors or has_event_constructor
or named_constructor):
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,
'has_constant_configuration': True,
})
# Attributes
attributes = [
v8_attributes.attribute_context(interface, attribute)
for attribute in interface.attributes
]
context.update({
'attributes':
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']
has_custom_registration = overloads['has_custom_registration_all']
else:
conditionally_exposed_function = method['exposed_test']
has_custom_registration = method['has_custom_registration']
if conditionally_exposed_function:
conditionally_enabled_methods.append(method)
continue
if has_custom_registration:
custom_registration_methods.append(method)
continue
method_configuration_methods.append(method)
for method in methods:
# The value of the Function object’s “length” property is a Number
# determined as follows:
# 1. Let S be the effective overload set for regular operations (if the
# operation is a regular operation) or for static operations (if the
# operation is a static operation) with identifier id on interface I and
# with argument count 0.
# 2. Return the length of the shortest argument list of the entries in S.
# FIXME: This calculation doesn't take into account whether runtime
# enabled overloads are actually enabled, so length may be incorrect.
# E.g., [RuntimeEnabled=Foo] void f(); void f(long x);
# should have length 1 if Foo is not enabled, but length 0 if it is.
method['length'] = (method['overloads']['minarg']
if 'overloads' in method else
method['number_of_required_arguments'])
context.update({
'conditionally_enabled_methods': conditionally_enabled_methods,
'custom_registration_methods': custom_registration_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 setter_context(interface, attribute, interfaces, context):
if 'PutForwards' in attribute.extended_attributes:
# Make sure the target interface and attribute exist.
target_interface_name = attribute.idl_type.base_type
target_attribute_name = attribute.extended_attributes['PutForwards']
interface = interfaces[target_interface_name]
try:
next(candidate for candidate in interface.attributes
if candidate.name == target_attribute_name)
except StopIteration:
raise Exception('[PutForward] target not found:\n'
'Attribute "%s" is not present in interface "%s"' %
(target_attribute_name, target_interface_name))
context['target_attribute_name'] = target_attribute_name
return
if ('Replaceable' in attribute.extended_attributes):
# Create the property, and early-return if an exception is thrown.
# Subsequent cleanup code may not be prepared to handle a pending
# exception.
context['cpp_setter'] = (
'if (info.Holder()->CreateDataProperty(' +
'info.GetIsolate()->GetCurrentContext(), ' +
'property_name, v8_value).IsNothing())' + '\n return')
return
extended_attributes = attribute.extended_attributes
idl_type = attribute.idl_type
# [RaisesException], [RaisesException=Setter]
is_setter_raises_exception = (
'RaisesException' in extended_attributes
and extended_attributes['RaisesException'] in [None, 'Setter'])
has_type_checking_interface = idl_type.is_wrapper_type
use_common_reflection_setter = False
# Enable use_common_reflection_setter if
# * extended_attributes is [CEReactions, Reflect] or
# [CEReactions, Reflect, RuntimeEnabled],
# * the type is boolean, DOMString, or DOMString?, and
# * the interface inherits from 'Element'.
if ('Reflect' in extended_attributes
and 'CEReactions' in extended_attributes
and str(idl_type) in ('boolean', 'DOMString', 'DOMString?')
and inherits_interface(interface.name, 'Element')):
if (len(extended_attributes) == 2
or (len(extended_attributes) == 3
and 'RuntimeEnabled' in extended_attributes)):
use_common_reflection_setter = True
context.update({
'has_setter_exception_state':
is_setter_raises_exception or has_type_checking_interface
or idl_type.v8_conversion_needs_exception_state,
'has_type_checking_interface':
has_type_checking_interface,
'is_setter_call_with_execution_context':
has_extended_attribute_value(attribute, 'SetterCallWith',
'ExecutionContext'),
'is_setter_call_with_script_state':
has_extended_attribute_value(attribute, 'SetterCallWith',
'ScriptState'),
'is_setter_raises_exception':
is_setter_raises_exception,
'use_common_reflection_setter':
use_common_reflection_setter,
'v8_value_to_local_cpp_value':
idl_type.v8_value_to_local_cpp_value(
extended_attributes,
'v8_value',
'cpp_value',
code_generation_target='attribute_set'),
})
# setter_expression() depends on context values we set above.
context['cpp_setter'] = setter_expression(interface, attribute, context)
def interface_context(interface):
context = v8_interface.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(dart_types.includes_for_interface(parent_interface))
extended_attributes = interface.extended_attributes
if inherits_interface(interface.name, "EventTarget"):
includes.update(["bindings/dart_event_listener.h"])
# [SetWrapperReferenceTo]
set_wrapper_reference_to_list = [
{
"name": argument.name,
# FIXME: properly should be:
# 'cpp_type': argument.idl_type.cpp_type_args(used_as_rvalue_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,
}
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()
context.update(
{
"cpp_class": DartUtilities.cpp_name(interface),
"header_includes": header_includes,
"set_wrapper_reference_to_list": set_wrapper_reference_to_list,
"dart_class": dart_types.dart_type(interface.name),
}
)
# 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.update({"constructor_overloads": overloads_context(constructors)})
# [CustomConstructor]
custom_constructors = [
custom_constructor_context(interface, constructor) for constructor in interface.custom_constructors
]
# [NamedConstructor]
named_constructor = generate_named_constructor(interface)
generate_method_native_entries(interface, constructors, "Constructor")
generate_method_native_entries(interface, custom_constructors, "Constructor")
if named_constructor:
generate_method_native_entries(interface, [named_constructor], "Constructor")
event_constructor = None
if context["has_event_constructor"]:
event_constructor = {
"native_entries": [DartUtilities.generate_native_entry(interface.name, None, "Constructor", False, 2)]
}
context.update(
{
"constructors": constructors,
"custom_constructors": custom_constructors,
"event_constructor": event_constructor,
"has_custom_constructor": bool(custom_constructors),
"interface_length": v8_interface.interface_length(interface, constructors + custom_constructors),
"is_constructor_call_with_execution_context": DartUtilities.has_extended_attribute_value(
interface, "ConstructorCallWith", "ExecutionContext"
), # [ConstructorCallWith=ExeuctionContext]
"named_constructor": named_constructor,
}
)
# Attributes
attributes = [
dart_attributes.attribute_context(interface, attribute)
for attribute in interface.attributes
if not v8_attributes.is_constructor_attribute(attribute)
]
context.update(
{
"attributes": 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 = [
dart_methods.method_context(interface, method)
for method in interface.operations
# Skip anonymous special operations (methods name empty).
if (
method.name
and
# detect unnamed getters from v8_interface.
method.name != "anonymousNamedGetter"
)
]
compute_method_overloads_context(methods)
for method in methods:
method["do_generate_method_configuration"] = (
# For overloaded methods, only generate one accessor
"overload_index" not in method or method["overload_index"] == 1
)
for method in methods:
assert "overloads" not in method, "Dart does not support overloads, %s in %s" % (method["name"], interface.name)
generate_method_native_entries(interface, methods, "Method")
context.update(
{
"has_method_configuration": any(method["do_generate_method_configuration"] for method in methods),
"methods": methods,
}
)
context.update(
{
"indexed_property_getter": indexed_property_getter(interface),
"indexed_property_setter": indexed_property_setter(interface),
"indexed_property_deleter": v8_interface.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": v8_interface.named_property_deleter(interface),
}
)
generate_native_entries_for_specials(interface, context)
native_entries = generate_interface_native_entries(context)
context.update({"native_entries": native_entries})
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(v8_types.includes_for_interface(parent_interface))
extended_attributes = interface.extended_attributes
# [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)
# [SetWrapperReferenceFrom]
reachable_node_function = extended_attributes.get('SetWrapperReferenceFrom')
if reachable_node_function:
includes.update(['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,
} 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 = {
'cpp_class': cpp_name(interface),
'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_dependent_lifetime': is_dependent_lifetime,
'is_exception': interface.is_exception,
'is_script_wrappable': is_script_wrappable,
'iterator_method': iterator_method,
'lifetime': 'Dependent'
if (has_visit_dom_wrapper or
is_dependent_lifetime)
else 'Independent',
'parent_interface': parent_interface,
'reachable_node_function': reachable_node_function,
'set_wrapper_reference_to_list': set_wrapper_reference_to_list,
'special_wrap_for': special_wrap_for,
'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']
# [NamedConstructor]
named_constructor = named_constructor_context(interface)
if (constructors or custom_constructors or has_event_constructor or
named_constructor):
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,
'has_constant_configuration': True,
})
# Attributes
attributes = [v8_attributes.attribute_context(interface, attribute)
for attribute in interface.attributes]
context.update({
'attributes': 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']
has_custom_registration = overloads['has_custom_registration_all']
else:
conditionally_exposed_function = method['exposed_test']
has_custom_registration = method['has_custom_registration']
if conditionally_exposed_function:
conditionally_enabled_methods.append(method)
continue
if has_custom_registration:
custom_registration_methods.append(method)
continue
method_configuration_methods.append(method)
for method in methods:
# The value of the Function object’s “length” property is a Number
# determined as follows:
# 1. Let S be the effective overload set for regular operations (if the
# operation is a regular operation) or for static operations (if the
# operation is a static operation) with identifier id on interface I and
# with argument count 0.
# 2. Return the length of the shortest argument list of the entries in S.
# FIXME: This calculation doesn't take into account whether runtime
# enabled overloads are actually enabled, so length may be incorrect.
# E.g., [RuntimeEnabled=Foo] void f(); void f(long x);
# should have length 1 if Foo is not enabled, but length 0 if it is.
method['length'] = (method['overloads']['minarg'] if 'overloads' in method else
method['number_of_required_arguments'])
context.update({
'conditionally_enabled_methods': conditionally_enabled_methods,
'custom_registration_methods': custom_registration_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 interface_context(interface):
context = v8_interface.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(
dart_types.includes_for_interface(parent_interface))
extended_attributes = interface.extended_attributes
if inherits_interface(interface.name, 'EventTarget'):
includes.update(['bindings/dart_event_listener.h'])
# [SetWrapperReferenceTo]
set_wrapper_reference_to_list = [
{
'name': argument.name,
# FIXME: properly should be:
# 'cpp_type': argument.idl_type.cpp_type_args(used_as_rvalue_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,
} 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()
context.update({
'cpp_class': DartUtilities.cpp_name(interface),
'header_includes': header_includes,
'set_wrapper_reference_to_list': set_wrapper_reference_to_list,
'dart_class': dart_types.dart_type(interface.name),
})
# 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.update(
{'constructor_overloads': overloads_context(constructors)})
# [CustomConstructor]
custom_constructors = [
custom_constructor_context(interface, constructor)
for constructor in interface.custom_constructors
]
# [NamedConstructor]
named_constructor = generate_named_constructor(interface)
generate_method_native_entries(interface, constructors, 'Constructor')
generate_method_native_entries(interface, custom_constructors,
'Constructor')
if named_constructor:
generate_method_native_entries(interface, [named_constructor],
'Constructor')
event_constructor = None
if context['has_event_constructor']:
event_constructor = {
'native_entries': [
DartUtilities.generate_native_entry(interface.name, None,
'Constructor', False, 2)
],
}
context.update({
'constructors':
constructors,
'custom_constructors':
custom_constructors,
'event_constructor':
event_constructor,
'has_custom_constructor':
bool(custom_constructors),
'interface_length':
v8_interface.interface_length(interface,
constructors + custom_constructors),
'is_constructor_call_with_execution_context':
DartUtilities.has_extended_attribute_value(
interface, 'ConstructorCallWith',
'ExecutionContext'), # [ConstructorCallWith=ExeuctionContext]
'named_constructor':
named_constructor,
})
# Attributes
attributes = [
dart_attributes.attribute_context(interface, attribute)
for attribute in interface.attributes
if not v8_attributes.is_constructor_attribute(attribute)
]
context.update({
'attributes':
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 = [
dart_methods.method_context(interface, method)
for method in interface.operations
# Skip anonymous special operations (methods name empty).
if (method.name and
# detect unnamed getters from v8_interface.
method.name != 'anonymousNamedGetter')
]
compute_method_overloads_context(methods)
for method in methods:
method['do_generate_method_configuration'] = (
# For overloaded methods, only generate one accessor
('overload_index' not in method or method['overload_index'] == 1))
for method in methods:
assert 'overloads' not in method, 'Dart does not support overloads, %s in %s' % (
method['name'], interface.name)
generate_method_native_entries(interface, methods, 'Method')
context.update({
'has_method_configuration':
any(method['do_generate_method_configuration'] for method in methods),
'methods':
methods,
})
context.update({
'indexed_property_getter':
indexed_property_getter(interface),
'indexed_property_setter':
indexed_property_setter(interface),
'indexed_property_deleter':
v8_interface.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':
v8_interface.named_property_deleter(interface),
})
generate_native_entries_for_specials(interface, context)
native_entries = generate_interface_native_entries(context)
context.update({
'native_entries': native_entries,
})
return context
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
def interface_context(interface):
context = v8_interface.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(
dart_types.includes_for_interface(parent_interface))
extended_attributes = interface.extended_attributes
is_document = inherits_interface(interface.name, 'Document')
if is_document:
# FIXME(vsm): We probably need bindings/dart/DartController and
# core/frame/LocalFrame.h here.
includes.update(['DartDocument.h'])
if inherits_interface(interface.name, 'DataTransferItemList'):
# FIXME(jacobr): this is a hack.
includes.update(['core/html/HTMLCollection.h'])
if inherits_interface(interface.name, 'EventTarget'):
includes.update(['bindings/core/dart/DartEventListener.h'])
# [SetWrapperReferenceTo]
set_wrapper_reference_to_list = [
{
'name': argument.name,
# FIXME: properly should be:
# 'cpp_type': argument.idl_type.cpp_type_args(used_as_rvalue_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': dart_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()
context.update({
'conditional_string':
DartUtilities.conditional_string(interface), # [Conditional]
'cpp_class':
DartUtilities.cpp_name(interface),
'header_includes':
header_includes,
'is_garbage_collected':
context['gc_type'] == 'GarbageCollectedObject',
'is_will_be_garbage_collected':
context['gc_type'] == 'WillBeGarbageCollectedObject',
'measure_as':
DartUtilities.measure_as(interface), # [MeasureAs]
'pass_cpp_type':
dart_types.cpp_template_type(
dart_types.cpp_ptr_type('PassRefPtr', 'RawPtr',
context['gc_type']),
DartUtilities.cpp_name(interface)),
'runtime_enabled_function':
DartUtilities.runtime_enabled_function_name(
interface), # [RuntimeEnabled]
'set_wrapper_reference_to_list':
set_wrapper_reference_to_list,
'dart_class':
dart_types.dart_type(interface.name),
'v8_class':
DartUtilities.v8_class_name(interface),
})
# 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.update(
{'constructor_overloads': overloads_context(constructors)})
# [CustomConstructor]
custom_constructors = [
custom_constructor_context(interface, constructor)
for constructor in interface.custom_constructors
]
# [NamedConstructor]
named_constructor = generate_named_constructor(interface)
generate_method_native_entries(interface, constructors, 'Constructor')
generate_method_native_entries(interface, custom_constructors,
'Constructor')
if named_constructor:
generate_method_native_entries(interface, [named_constructor],
'Constructor')
event_constructor = None
if context['has_event_constructor']:
event_constructor = {
'native_entries': [
DartUtilities.generate_native_entry(interface.name, None,
'Constructor', False, 2)
],
}
if (context['constructors'] or custom_constructors
or context['has_event_constructor'] or named_constructor):
includes.add('core/frame/LocalDOMWindow.h')
context.update({
'constructors':
constructors,
'custom_constructors':
custom_constructors,
'event_constructor':
event_constructor,
'has_custom_constructor':
bool(custom_constructors),
'interface_length':
v8_interface.interface_length(interface,
constructors + custom_constructors),
'is_constructor_call_with_document':
DartUtilities.has_extended_attribute_value(
interface, 'ConstructorCallWith',
'Document'), # [ConstructorCallWith=Document]
'is_constructor_call_with_execution_context':
DartUtilities.has_extended_attribute_value(
interface, 'ConstructorCallWith',
'ExecutionContext'), # [ConstructorCallWith=ExeuctionContext]
'named_constructor':
named_constructor,
})
# Attributes
attributes = [
dart_attributes.attribute_context(interface, attribute)
for attribute in interface.attributes
# Skip attributes in the IGNORE_MEMBERS list or if an
# extended attribute is in the IGNORE_EXTENDED_ATTRIBUTES.
if
(not _suppress_attribute(interface.name, attribute.name)
and not v8_attributes.is_constructor_attribute(attribute)
and not _suppress_extended_attributes(attribute.extended_attributes)
and not ('DartSuppress' in attribute.extended_attributes and
attribute.extended_attributes.get('DartSuppress') == None))
]
context.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 = [
dart_methods.method_context(interface, method)
for method in interface.operations
# Skip anonymous special operations (methods name empty).
# Skip methods in our IGNORE_MEMBERS list.
# Skip methods w/ extended attributes in IGNORE_EXTENDED_ATTRIBUTES list.
if
(method.name and
# detect unnamed getters from v8_interface.
method.name != 'anonymousNamedGetter' and
# TODO(terry): Eventual eliminate the IGNORE_MEMBERS in favor of DartSupress.
not _suppress_method(interface.name, method.name)
and not _suppress_extended_attributes(method.extended_attributes)
and not 'DartSuppress' in method.extended_attributes)
]
compute_method_overloads_context(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))
generate_method_native_entries(interface, methods, 'Method')
context.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,
})
context.update({
'indexed_property_getter':
indexed_property_getter(interface),
'indexed_property_setter':
indexed_property_setter(interface),
'indexed_property_deleter':
v8_interface.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':
v8_interface.named_property_deleter(interface),
})
generate_native_entries_for_specials(interface, context)
native_entries = generate_interface_native_entries(context)
context.update({
'native_entries': native_entries,
})
return context
