IDL compiler: Implement mutable and immutable CodeGeneratorInfo

Implements CodeGeneratorInfo{,Mutable} as immutable and mutable
information for bindings generators respectively.

Bug: 839389
Change-Id: Ia872b2f5aa5fd2b80a122f006ced06dae0b596c5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1768480
Commit-Queue: Yuki Shiino <yukishiino@chromium.org>
Reviewed-by: Hitoshi Yoshida <peria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#690294}

third_party/blink/renderer/bindings/scripts/build_web_idl_database.pydeps

@@ -9,6 +9,7 @@ web_idl/ast_group.py
 web_idl/attribute.py
 web_idl/callback_function.py
 web_idl/callback_interface.py
+web_idl/code_generator_info.py
 web_idl/composition_parts.py
 web_idl/constant.py
 web_idl/database.py

third_party/blink/renderer/bindings/scripts/collect_idl_files.pydeps

@@ -19,6 +19,7 @@ web_idl/ast_group.py
 web_idl/attribute.py
 web_idl/callback_function.py
 web_idl/callback_interface.py
+web_idl/code_generator_info.py
 web_idl/composition_parts.py
 web_idl/constant.py
 web_idl/database.py

third_party/blink/renderer/bindings/scripts/web_idl/attribute.py

@@ -2,6 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from .code_generator_info import CodeGeneratorInfo
 from .composition_parts import WithCodeGeneratorInfo
 from .composition_parts import WithComponent
 from .composition_parts import WithDebugInfo
@@ -52,7 +53,8 @@ class Attribute(WithIdentifier, WithExtendedAttributes, WithCodeGeneratorInfo,
         ir = make_copy(ir)
         WithIdentifier.__init__(self, ir.identifier)
         WithExtendedAttributes.__init__(self, ir.extended_attributes)
-        WithCodeGeneratorInfo.__init__(self, ir.code_generator_info)
+        WithCodeGeneratorInfo.__init__(
+            self, CodeGeneratorInfo(ir.code_generator_info))
         WithOwner.__init__(self, owner)
         WithComponent.__init__(self, components=ir.components)
         WithDebugInfo.__init__(self, ir.debug_info)

third_party/blink/renderer/bindings/scripts/web_idl/callback_function.py

@@ -2,6 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from .code_generator_info import CodeGeneratorInfo
 from .composition_parts import WithCodeGeneratorInfo
 from .composition_parts import WithComponent
 from .composition_parts import WithDebugInfo
@@ -47,7 +48,8 @@ class CallbackFunction(UserDefinedType, FunctionLike, WithExtendedAttributes,
         UserDefinedType.__init__(self, ir.identifier)
         FunctionLike.__init__(self, ir)
         WithExtendedAttributes.__init__(self, ir.extended_attributes)
-        WithCodeGeneratorInfo.__init__(self, ir.code_generator_info)
+        WithCodeGeneratorInfo.__init__(
+            self, CodeGeneratorInfo(ir.code_generator_info))
         WithComponent.__init__(self, components=ir.components)
         WithDebugInfo.__init__(self, ir.debug_info)
 

third_party/blink/renderer/bindings/scripts/web_idl/callback_interface.py

@@ -4,6 +4,7 @@
 
 import exceptions
 
+from .code_generator_info import CodeGeneratorInfo
 from .composition_parts import WithCodeGeneratorInfo
 from .composition_parts import WithComponent
 from .composition_parts import WithDebugInfo
@@ -40,7 +41,8 @@ class CallbackInterface(UserDefinedType, WithExtendedAttributes,
         ir = make_copy(ir)
         UserDefinedType.__init__(self, ir.identifier)
         WithExtendedAttributes.__init__(self, ir.extended_attributes)
-        WithCodeGeneratorInfo.__init__(self, ir.code_generator_info)
+        WithCodeGeneratorInfo.__init__(
+            self, CodeGeneratorInfo(ir.code_generator_info))
         WithComponent.__init__(self, components=ir.components)
         WithDebugInfo.__init__(self, ir.debug_info)
 

third_party/blink/renderer/bindings/scripts/web_idl/code_generator_info.py

+# Copyright 2019 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# The list of attributes that CodeGeneratorInfo supports.  CodeGeneratorInfo's
+# attributes are auto-generated from this list because they're boilerplated.
+_CODE_GENERATOR_INFO_ATTRIBUTES = (
+    'property_implemented_as',
+    'receiver_implemented_as',
+)
+
+_CGI_ATTRS = tuple([
+    # attribute name (_foo of self._foo), getter name, setter name
+    ('_{}'.format(attr), '{}'.format(attr), 'set_{}'.format(attr))
+    for attr in _CODE_GENERATOR_INFO_ATTRIBUTES
+])
+
+
+class CodeGeneratorInfo(object):
+    """A bag of properties to be used by bindings code generators."""
+
+    def __init__(self, other=None):
+        """
+        Initializes a new object.
+
+        If |other| is not None, initializes the new object as a copy of |other|.
+        If |other| is None, initializes the new object as empty.
+        """
+        assert other is None or isinstance(other, CodeGeneratorInfo)
+
+        if other is None:
+            for attr_name, _, _ in _CGI_ATTRS:
+                setattr(self, attr_name, None)
+        else:
+            for attr_name, _, _ in _CGI_ATTRS:
+                setattr(self, attr_name, getattr(other, attr_name))
+
+    @staticmethod
+    def make_getter(attr_name):
+        @property
+        def getter(self):
+            return getattr(self, attr_name)
+
+        return getter
+
+
+class CodeGeneratorInfoMutable(CodeGeneratorInfo):
+    """Another version of CodeGeneratorInfo that supports setters."""
+
+    @staticmethod
+    def make_setter(attr_name):
+        def setter(self, value):
+            setattr(self, attr_name, value)
+
+        return setter
+
+    def __getstate__(self):
+        assert False, "CodeGeneratorInfoMutable must not be pickled."
+
+    def __setstate__(self, state):
+        assert False, "CodeGeneratorInfoMutable must not be pickled."
+
+
+for attr_name, getter_name, setter_name in _CGI_ATTRS:
+    setattr(CodeGeneratorInfo, getter_name,
+            CodeGeneratorInfo.make_getter(attr_name))
+    setattr(CodeGeneratorInfoMutable, setter_name,
+            CodeGeneratorInfoMutable.make_setter(attr_name))
+
+CodeGeneratorInfo.make_getter = None
+CodeGeneratorInfoMutable.make_setter = None

third_party/blink/renderer/bindings/scripts/web_idl/composition_parts.py

@@ -2,8 +2,10 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from .extended_attribute import ExtendedAttributes
+from .code_generator_info import CodeGeneratorInfo
+from .code_generator_info import CodeGeneratorInfoMutable
 from .exposure import Exposure
+from .extended_attribute import ExtendedAttributes
 
 
 class Identifier(str):
@@ -35,17 +37,14 @@ class WithExtendedAttributes(object):
         return self._extended_attributes
 
 
-class CodeGeneratorInfo(dict):
-    """A bag of properties to be used by bindings code generators"""
-
-
 class WithCodeGeneratorInfo(object):
     """Implements |code_generator_info| as a readonly attribute."""
 
     def __init__(self, code_generator_info=None):
         assert (code_generator_info is None
                 or isinstance(code_generator_info, CodeGeneratorInfo))
-        self._code_generator_info = code_generator_info or CodeGeneratorInfo()
+        self._code_generator_info = (code_generator_info
+                                     or CodeGeneratorInfoMutable())
 
     @property
     def code_generator_info(self):

third_party/blink/renderer/bindings/scripts/web_idl/constant.py

@@ -2,6 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from .code_generator_info import CodeGeneratorInfo
 from .composition_parts import WithCodeGeneratorInfo
 from .composition_parts import WithComponent
 from .composition_parts import WithDebugInfo
@@ -47,7 +48,8 @@ class Constant(WithIdentifier, WithExtendedAttributes, WithCodeGeneratorInfo,
         ir = make_copy(ir)
         WithIdentifier.__init__(self, ir.identifier)
         WithExtendedAttributes.__init__(self, ir.extended_attributes)
-        WithCodeGeneratorInfo.__init__(self, ir.code_generator_info)
+        WithCodeGeneratorInfo.__init__(
+            self, CodeGeneratorInfo(ir.code_generator_info))
         WithOwner.__init__(self, owner)
         WithComponent.__init__(self, components=ir.components)
         WithDebugInfo.__init__(self, ir.debug_info)

third_party/blink/renderer/bindings/scripts/web_idl/dictionary.py

@@ -2,6 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from .code_generator_info import CodeGeneratorInfo
 from .composition_parts import WithCodeGeneratorInfo
 from .composition_parts import WithComponent
 from .composition_parts import WithDebugInfo
@@ -58,7 +59,8 @@ class Dictionary(UserDefinedType, WithExtendedAttributes,
         ir = make_copy(ir)
         UserDefinedType.__init__(self, ir.identifier)
         WithExtendedAttributes.__init__(self, ir.extended_attributes)
-        WithCodeGeneratorInfo.__init__(self, ir.code_generator_info)
+        WithCodeGeneratorInfo.__init__(
+            self, CodeGeneratorInfo(ir.code_generator_info))
         WithComponent.__init__(self, components=ir.components)
         WithDebugInfo.__init__(self, ir.debug_info)
 
@@ -141,7 +143,8 @@ class DictionaryMember(WithIdentifier, WithExtendedAttributes,
         ir = make_copy(ir)
         WithIdentifier.__init__(self, ir.identifier)
         WithExtendedAttributes.__init__(self, ir.extended_attributes)
-        WithCodeGeneratorInfo.__init__(self, ir.code_generator_info)
+        WithCodeGeneratorInfo.__init__(
+            self, CodeGeneratorInfo(ir.code_generator_info))
         WithOwner.__init__(self, owner)
         WithComponent.__init__(self, components=ir.components)
         WithDebugInfo.__init__(self, ir.debug_info)

third_party/blink/renderer/bindings/scripts/web_idl/enumeration.py

@@ -2,6 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from .code_generator_info import CodeGeneratorInfo
 from .composition_parts import WithCodeGeneratorInfo
 from .composition_parts import WithComponent
 from .composition_parts import WithDebugInfo
@@ -42,7 +43,8 @@ class Enumeration(UserDefinedType, WithExtendedAttributes,
         ir = make_copy(ir)
         UserDefinedType.__init__(self, ir.identifier)
         WithExtendedAttributes.__init__(self, ir.extended_attributes)
-        WithCodeGeneratorInfo.__init__(self, ir.code_generator_info)
+        WithCodeGeneratorInfo.__init__(
+            self, CodeGeneratorInfo(ir.code_generator_info))
         WithComponent.__init__(self, components=ir.components)
         WithDebugInfo.__init__(self, ir.debug_info)
 

third_party/blink/renderer/bindings/scripts/web_idl/idl_type.py

@@ -7,7 +7,6 @@ import functools
 
 from blinkbuild.name_style_converter import NameStyleConverter
 
-from .composition_parts import WithCodeGeneratorInfo
 from .composition_parts import WithDebugInfo
 from .composition_parts import WithExtendedAttributes
 from .composition_parts import WithIdentifier
@@ -110,7 +109,7 @@ class IdlTypeFactory(object):
         return idl_type
 
 
-class IdlType(WithExtendedAttributes, WithCodeGeneratorInfo, WithDebugInfo):
+class IdlType(WithExtendedAttributes, WithDebugInfo):
     """
     Represents a 'type' in Web IDL.
 
@@ -130,13 +129,11 @@ class IdlType(WithExtendedAttributes, WithCodeGeneratorInfo, WithDebugInfo):
     def __init__(self,
                  is_optional=False,
                  extended_attributes=None,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         assert isinstance(is_optional, bool)
         assert pass_key is _IDL_TYPE_PASS_KEY
         WithExtendedAttributes.__init__(self, extended_attributes)
-        WithCodeGeneratorInfo.__init__(self, code_generator_info)
         WithDebugInfo.__init__(self, debug_info)
         self._is_optional = is_optional
 
@@ -428,7 +425,6 @@ class SimpleType(IdlType):
                  name,
                  is_optional=False,
                  extended_attributes=None,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         assert name in SimpleType._VALID_TYPES, (
@@ -437,7 +433,6 @@ class SimpleType(IdlType):
             self,
             is_optional=is_optional,
             extended_attributes=extended_attributes,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
         self._name = name
@@ -507,14 +502,12 @@ class ReferenceType(IdlType, WithIdentifier, Proxy):
 
     _attrs_to_be_proxied = set(Proxy.get_all_attributes(IdlType)).difference(
         # attributes not to be proxied
-        set(('code_generator_info', 'debug_info', 'extended_attributes',
-             'is_optional')))
+        set(('debug_info', 'extended_attributes', 'is_optional')))
 
     def __init__(self,
                  ref_to_idl_type,
                  is_optional=False,
                  extended_attributes=None,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         assert isinstance(ref_to_idl_type, RefById)
@@ -522,7 +515,6 @@ class ReferenceType(IdlType, WithIdentifier, Proxy):
             self,
             is_optional=is_optional,
             extended_attributes=extended_attributes,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
         WithIdentifier.__init__(self, ref_to_idl_type.identifier)
@@ -550,13 +542,11 @@ class DefinitionType(IdlType, WithIdentifier):
 
     def __init__(self,
                  user_defined_type,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         assert isinstance(user_defined_type, UserDefinedType)
         IdlType.__init__(
             self,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
         WithIdentifier.__init__(self, user_defined_type.identifier)
@@ -620,13 +610,11 @@ class TypedefType(IdlType, WithIdentifier):
 
     def __init__(self,
                  typedef,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         assert isinstance(typedef, Typedef)
         IdlType.__init__(
             self,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
         WithIdentifier.__init__(self, typedef.identifier)
@@ -674,7 +662,6 @@ class _ArrayLikeType(IdlType):
                  element_type,
                  is_optional=False,
                  extended_attributes=None,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         assert isinstance(element_type, IdlType)
@@ -682,7 +669,6 @@ class _ArrayLikeType(IdlType):
             self,
             is_optional=is_optional,
             extended_attributes=extended_attributes,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
         self._element_type = element_type
@@ -711,7 +697,6 @@ class SequenceType(_ArrayLikeType):
                  element_type,
                  is_optional=False,
                  extended_attributes=None,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         _ArrayLikeType.__init__(
@@ -719,7 +704,6 @@ class SequenceType(_ArrayLikeType):
             element_type,
             is_optional=is_optional,
             extended_attributes=extended_attributes,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
 
@@ -746,7 +730,6 @@ class FrozenArrayType(_ArrayLikeType):
                  element_type,
                  is_optional=False,
                  extended_attributes=None,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         _ArrayLikeType.__init__(
@@ -754,7 +737,6 @@ class FrozenArrayType(_ArrayLikeType):
             element_type,
             is_optional=is_optional,
             extended_attributes=extended_attributes,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
 
@@ -779,13 +761,11 @@ class VariadicType(_ArrayLikeType):
 
     def __init__(self,
                  element_type,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         _ArrayLikeType.__init__(
             self,
             element_type,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
 
@@ -816,7 +796,6 @@ class RecordType(IdlType):
                  value_type,
                  is_optional=False,
                  extended_attributes=None,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         assert isinstance(key_type, IdlType)
@@ -825,7 +804,6 @@ class RecordType(IdlType):
             self,
             is_optional=is_optional,
             extended_attributes=extended_attributes,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
         self._key_type = key_type
@@ -874,7 +852,6 @@ class PromiseType(IdlType):
                  result_type,
                  is_optional=False,
                  extended_attributes=None,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         assert isinstance(result_type, IdlType)
@@ -882,7 +859,6 @@ class PromiseType(IdlType):
             self,
             is_optional=is_optional,
             extended_attributes=extended_attributes,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
         self._result_type = result_type
@@ -929,7 +905,6 @@ class UnionType(IdlType):
                  member_types,
                  is_optional=False,
                  extended_attributes=None,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         assert isinstance(member_types, (list, tuple))
@@ -938,7 +913,6 @@ class UnionType(IdlType):
             self,
             is_optional=is_optional,
             extended_attributes=extended_attributes,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
         self._member_types = tuple(member_types)
@@ -1016,7 +990,6 @@ class NullableType(IdlType):
                  inner_type,
                  is_optional=False,
                  extended_attributes=None,
-                 code_generator_info=None,
                  debug_info=None,
                  pass_key=None):
         assert isinstance(inner_type, IdlType)
@@ -1024,7 +997,6 @@ class NullableType(IdlType):
             self,
             is_optional=is_optional,
             extended_attributes=extended_attributes,
-            code_generator_info=code_generator_info,
             debug_info=debug_info,
             pass_key=pass_key)
         self._inner_type = inner_type

third_party/blink/renderer/bindings/scripts/web_idl/interface.py

@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 from .attribute import Attribute
+from .code_generator_info import CodeGeneratorInfo
 from .composition_parts import WithCodeGeneratorInfo
 from .composition_parts import WithComponent
 from .composition_parts import WithDebugInfo
@@ -95,7 +96,8 @@ class Interface(UserDefinedType, WithExtendedAttributes, WithCodeGeneratorInfo,
         ir = make_copy(ir)
         UserDefinedType.__init__(self, ir.identifier)
         WithExtendedAttributes.__init__(self, ir.extended_attributes)
-        WithCodeGeneratorInfo.__init__(self, ir.code_generator_info)
+        WithCodeGeneratorInfo.__init__(
+            self, CodeGeneratorInfo(ir.code_generator_info))
         WithComponent.__init__(self, components=ir.components)
         WithDebugInfo.__init__(self, ir.debug_info)
 
@@ -213,13 +215,12 @@ class Interface(UserDefinedType, WithExtendedAttributes, WithCodeGeneratorInfo,
         return True
 
 
-class Iterable(WithCodeGeneratorInfo, WithDebugInfo):
+class Iterable(WithDebugInfo):
     """https://heycam.github.io/webidl/#idl-iterable"""
 
     def __init__(self,
                  key_type=None,
                  value_type=None,
-                 code_generator_info=None,
                  debug_info=None):
         assert key_type is None or isinstance(key_type, IdlType)
         # iterable is declared in either form of
@@ -229,7 +230,6 @@ class Iterable(WithCodeGeneratorInfo, WithDebugInfo):
         # to be consistent with the format of IDL.
         assert isinstance(value_type, IdlType), "value_type must be specified"
 
-        WithCodeGeneratorInfo.__init__(self, code_generator_info)
         WithDebugInfo.__init__(self, debug_info)
 
         self._key_type = key_type
@@ -246,20 +246,18 @@ class Iterable(WithCodeGeneratorInfo, WithDebugInfo):
         return self._value_type
 
 
-class Maplike(WithCodeGeneratorInfo, WithDebugInfo):
+class Maplike(WithDebugInfo):
     """https://heycam.github.io/webidl/#idl-maplike"""
 
     def __init__(self,
                  key_type,
                  value_type,
                  is_readonly=False,
-                 code_generator_info=None,
                  debug_info=None):
         assert isinstance(key_type, IdlType)
         assert isinstance(value_type, IdlType)
         assert isinstance(is_readonly, bool)
 
-        WithCodeGeneratorInfo.__init__(self, code_generator_info)
         WithDebugInfo.__init__(self, debug_info)
 
         self._key_type = key_type
@@ -291,18 +289,16 @@ class Maplike(WithCodeGeneratorInfo, WithDebugInfo):
         return self._is_readonly
 
 
-class Setlike(WithCodeGeneratorInfo, WithDebugInfo):
+class Setlike(WithDebugInfo):
     """https://heycam.github.io/webidl/#idl-setlike"""
 
     def __init__(self,
                  value_type,
                  is_readonly=False,
-                 code_generator_info=None,
                  debug_info=None):
         assert isinstance(value_type, IdlType)
         assert isinstance(is_readonly, bool)
 
-        WithCodeGeneratorInfo.__init__(self, code_generator_info)
         WithDebugInfo.__init__(self, debug_info)
 
         self._value_type = value_type

third_party/blink/renderer/bindings/scripts/web_idl/typedef.py

@@ -2,6 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from .code_generator_info import CodeGeneratorInfo
 from .composition_parts import WithCodeGeneratorInfo
 from .composition_parts import WithComponent
 from .composition_parts import WithDebugInfo
@@ -34,7 +35,8 @@ class Typedef(WithIdentifier, WithCodeGeneratorInfo, WithComponent,
 
         ir = make_copy(ir)
         WithIdentifier.__init__(self, ir.identifier)
-        WithCodeGeneratorInfo.__init__(self, ir.code_generator_info)
+        WithCodeGeneratorInfo.__init__(
+            self, CodeGeneratorInfo(ir.code_generator_info))
         WithComponent.__init__(self, components=ir.components)
         WithDebugInfo.__init__(self, ir.debug_info)
 

third_party/blink/renderer/bindings/scripts/web_idl/union.py

@@ -2,7 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from .composition_parts import WithCodeGeneratorInfo
 from .composition_parts import WithComponent
 from .composition_parts import WithDebugInfo
 from .composition_parts import WithIdentifier
@@ -10,8 +9,7 @@ from .idl_type import IdlType
 from .typedef import Typedef
 
 
-class Union(WithIdentifier, WithCodeGeneratorInfo, WithComponent,
-            WithDebugInfo):
+class Union(WithIdentifier, WithComponent, WithDebugInfo):
     """
     Union class makes a group of union types with the same flattened member
     types and the same result whether it includes a nullable type or not.
@@ -79,7 +77,6 @@ class Union(WithIdentifier, WithCodeGeneratorInfo, WithComponent,
             idl_type.apply_to_all_composing_elements(collect_components)
 
         WithIdentifier.__init__(self, identifier)
-        WithCodeGeneratorInfo.__init__(self)
         WithComponent.__init__(self, components=sorted(components))
         WithDebugInfo.__init__(self)