diff options
Diffstat (limited to 'utils/ipc/mojo/public/tools/mojom/mojom/parse/ast.py')
| -rw-r--r-- | utils/ipc/mojo/public/tools/mojom/mojom/parse/ast.py | 145 |
1 files changed, 90 insertions, 55 deletions
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast.py b/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast.py index 1f0db200..aae9cdb6 100644 --- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast.py +++ b/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast.py @@ -1,4 +1,4 @@ -# Copyright 2014 The Chromium Authors. All rights reserved. +# Copyright 2014 The Chromium Authors # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. """Node classes for the AST for a Mojo IDL file.""" @@ -8,17 +8,14 @@ # and lineno). You may also define __repr__() to help with analyzing test # failures, especially for more complex types. +import os.path -import sys +# Instance of 'NodeListBase' has no '_list_item_type' member (no-member) +# pylint: disable=no-member -def _IsStrOrUnicode(x): - if sys.version_info[0] < 3: - return isinstance(x, (unicode, str)) - return isinstance(x, str) - -class NodeBase(object): +class NodeBase: """Base class for nodes in the AST.""" def __init__(self, filename=None, lineno=None): @@ -43,7 +40,7 @@ class NodeListBase(NodeBase): classes, in a tuple) of the members of the list.)""" def __init__(self, item_or_items=None, **kwargs): - super(NodeListBase, self).__init__(**kwargs) + super().__init__(**kwargs) self.items = [] if item_or_items is None: pass @@ -62,7 +59,7 @@ class NodeListBase(NodeBase): return self.items.__iter__() def __eq__(self, other): - return super(NodeListBase, self).__eq__(other) and \ + return super().__eq__(other) and \ self.items == other.items # Implement this so that on failure, we get slightly more sensible output. @@ -96,7 +93,7 @@ class Definition(NodeBase): include parameter definitions.) This class is meant to be subclassed.""" def __init__(self, mojom_name, **kwargs): - assert _IsStrOrUnicode(mojom_name) + assert isinstance(mojom_name, str) NodeBase.__init__(self, **kwargs) self.mojom_name = mojom_name @@ -108,13 +105,13 @@ class Attribute(NodeBase): """Represents an attribute.""" def __init__(self, key, value, **kwargs): - assert _IsStrOrUnicode(key) - super(Attribute, self).__init__(**kwargs) + assert isinstance(key, str) + super().__init__(**kwargs) self.key = key self.value = value def __eq__(self, other): - return super(Attribute, self).__eq__(other) and \ + return super().__eq__(other) and \ self.key == other.key and \ self.value == other.value @@ -131,17 +128,17 @@ class Const(Definition): def __init__(self, mojom_name, attribute_list, typename, value, **kwargs): assert attribute_list is None or isinstance(attribute_list, AttributeList) # The typename is currently passed through as a string. - assert _IsStrOrUnicode(typename) + assert isinstance(typename, str) # The value is either a literal (currently passed through as a string) or a # "wrapped identifier". - assert _IsStrOrUnicode or isinstance(value, tuple) - super(Const, self).__init__(mojom_name, **kwargs) + assert isinstance(value, (tuple, str)) + super().__init__(mojom_name, **kwargs) self.attribute_list = attribute_list self.typename = typename self.value = value def __eq__(self, other): - return super(Const, self).__eq__(other) and \ + return super().__eq__(other) and \ self.attribute_list == other.attribute_list and \ self.typename == other.typename and \ self.value == other.value @@ -153,12 +150,12 @@ class Enum(Definition): def __init__(self, mojom_name, attribute_list, enum_value_list, **kwargs): assert attribute_list is None or isinstance(attribute_list, AttributeList) assert enum_value_list is None or isinstance(enum_value_list, EnumValueList) - super(Enum, self).__init__(mojom_name, **kwargs) + super().__init__(mojom_name, **kwargs) self.attribute_list = attribute_list self.enum_value_list = enum_value_list def __eq__(self, other): - return super(Enum, self).__eq__(other) and \ + return super().__eq__(other) and \ self.attribute_list == other.attribute_list and \ self.enum_value_list == other.enum_value_list @@ -170,13 +167,13 @@ class EnumValue(Definition): # The optional value is either an int (which is current a string) or a # "wrapped identifier". assert attribute_list is None or isinstance(attribute_list, AttributeList) - assert value is None or _IsStrOrUnicode(value) or isinstance(value, tuple) - super(EnumValue, self).__init__(mojom_name, **kwargs) + assert value is None or isinstance(value, (tuple, str)) + super().__init__(mojom_name, **kwargs) self.attribute_list = attribute_list self.value = value def __eq__(self, other): - return super(EnumValue, self).__eq__(other) and \ + return super().__eq__(other) and \ self.attribute_list == other.attribute_list and \ self.value == other.value @@ -188,18 +185,47 @@ class EnumValueList(NodeListBase): _list_item_type = EnumValue +class Feature(Definition): + """Represents a runtime feature definition.""" + def __init__(self, mojom_name, attribute_list, body, **kwargs): + assert attribute_list is None or isinstance(attribute_list, AttributeList) + assert isinstance(body, FeatureBody) or body is None + super().__init__(mojom_name, **kwargs) + self.attribute_list = attribute_list + self.body = body + + def __eq__(self, other): + return super().__eq__(other) and \ + self.attribute_list == other.attribute_list and \ + self.body == other.body + + def __repr__(self): + return "Feature(mojom_name = %s, attribute_list = %s, body = %s)" % ( + self.mojom_name, self.attribute_list, self.body) + + +# This needs to be declared after `FeatureConst` and `FeatureField`. +class FeatureBody(NodeListBase): + """Represents the body of (i.e., list of definitions inside) a feature.""" + + # Features are compile time helpers so all fields are initializers/consts + # for the underlying platform feature type. + _list_item_type = (Const) + + class Import(NodeBase): """Represents an import statement.""" def __init__(self, attribute_list, import_filename, **kwargs): assert attribute_list is None or isinstance(attribute_list, AttributeList) - assert _IsStrOrUnicode(import_filename) - super(Import, self).__init__(**kwargs) + assert isinstance(import_filename, str) + super().__init__(**kwargs) self.attribute_list = attribute_list - self.import_filename = import_filename + # TODO(crbug.com/953884): Use pathlib once we're migrated fully to Python 3. + self.import_filename = os.path.normpath(import_filename).replace('\\', '/') def __eq__(self, other): - return super(Import, self).__eq__(other) and \ + return super().__eq__(other) and \ self.attribute_list == other.attribute_list and \ self.import_filename == other.import_filename @@ -216,12 +242,12 @@ class Interface(Definition): def __init__(self, mojom_name, attribute_list, body, **kwargs): assert attribute_list is None or isinstance(attribute_list, AttributeList) assert isinstance(body, InterfaceBody) - super(Interface, self).__init__(mojom_name, **kwargs) + super().__init__(mojom_name, **kwargs) self.attribute_list = attribute_list self.body = body def __eq__(self, other): - return super(Interface, self).__eq__(other) and \ + return super().__eq__(other) and \ self.attribute_list == other.attribute_list and \ self.body == other.body @@ -236,14 +262,14 @@ class Method(Definition): assert isinstance(parameter_list, ParameterList) assert response_parameter_list is None or \ isinstance(response_parameter_list, ParameterList) - super(Method, self).__init__(mojom_name, **kwargs) + super().__init__(mojom_name, **kwargs) self.attribute_list = attribute_list self.ordinal = ordinal self.parameter_list = parameter_list self.response_parameter_list = response_parameter_list def __eq__(self, other): - return super(Method, self).__eq__(other) and \ + return super().__eq__(other) and \ self.attribute_list == other.attribute_list and \ self.ordinal == other.ordinal and \ self.parameter_list == other.parameter_list and \ @@ -264,12 +290,12 @@ class Module(NodeBase): # |mojom_namespace| is either none or a "wrapped identifier". assert mojom_namespace is None or isinstance(mojom_namespace, tuple) assert attribute_list is None or isinstance(attribute_list, AttributeList) - super(Module, self).__init__(**kwargs) + super().__init__(**kwargs) self.mojom_namespace = mojom_namespace self.attribute_list = attribute_list def __eq__(self, other): - return super(Module, self).__eq__(other) and \ + return super().__eq__(other) and \ self.mojom_namespace == other.mojom_namespace and \ self.attribute_list == other.attribute_list @@ -281,13 +307,13 @@ class Mojom(NodeBase): assert module is None or isinstance(module, Module) assert isinstance(import_list, ImportList) assert isinstance(definition_list, list) - super(Mojom, self).__init__(**kwargs) + super().__init__(**kwargs) self.module = module self.import_list = import_list self.definition_list = definition_list def __eq__(self, other): - return super(Mojom, self).__eq__(other) and \ + return super().__eq__(other) and \ self.module == other.module and \ self.import_list == other.import_list and \ self.definition_list == other.definition_list @@ -302,11 +328,11 @@ class Ordinal(NodeBase): def __init__(self, value, **kwargs): assert isinstance(value, int) - super(Ordinal, self).__init__(**kwargs) + super().__init__(**kwargs) self.value = value def __eq__(self, other): - return super(Ordinal, self).__eq__(other) and \ + return super().__eq__(other) and \ self.value == other.value @@ -314,18 +340,18 @@ class Parameter(NodeBase): """Represents a method request or response parameter.""" def __init__(self, mojom_name, attribute_list, ordinal, typename, **kwargs): - assert _IsStrOrUnicode(mojom_name) + assert isinstance(mojom_name, str) assert attribute_list is None or isinstance(attribute_list, AttributeList) assert ordinal is None or isinstance(ordinal, Ordinal) - assert _IsStrOrUnicode(typename) - super(Parameter, self).__init__(**kwargs) + assert isinstance(typename, str) + super().__init__(**kwargs) self.mojom_name = mojom_name self.attribute_list = attribute_list self.ordinal = ordinal self.typename = typename def __eq__(self, other): - return super(Parameter, self).__eq__(other) and \ + return super().__eq__(other) and \ self.mojom_name == other.mojom_name and \ self.attribute_list == other.attribute_list and \ self.ordinal == other.ordinal and \ @@ -344,42 +370,51 @@ class Struct(Definition): def __init__(self, mojom_name, attribute_list, body, **kwargs): assert attribute_list is None or isinstance(attribute_list, AttributeList) assert isinstance(body, StructBody) or body is None - super(Struct, self).__init__(mojom_name, **kwargs) + super().__init__(mojom_name, **kwargs) self.attribute_list = attribute_list self.body = body def __eq__(self, other): - return super(Struct, self).__eq__(other) and \ + return super().__eq__(other) and \ self.attribute_list == other.attribute_list and \ self.body == other.body + def __repr__(self): + return "Struct(mojom_name = %s, attribute_list = %s, body = %s)" % ( + self.mojom_name, self.attribute_list, self.body) + class StructField(Definition): """Represents a struct field definition.""" def __init__(self, mojom_name, attribute_list, ordinal, typename, default_value, **kwargs): - assert _IsStrOrUnicode(mojom_name) + assert isinstance(mojom_name, str) assert attribute_list is None or isinstance(attribute_list, AttributeList) assert ordinal is None or isinstance(ordinal, Ordinal) - assert _IsStrOrUnicode(typename) + assert isinstance(typename, str) # The optional default value is currently either a value as a string or a # "wrapped identifier". - assert default_value is None or _IsStrOrUnicode(default_value) or \ - isinstance(default_value, tuple) - super(StructField, self).__init__(mojom_name, **kwargs) + assert default_value is None or isinstance(default_value, (str, tuple)) + super().__init__(mojom_name, **kwargs) self.attribute_list = attribute_list self.ordinal = ordinal self.typename = typename self.default_value = default_value def __eq__(self, other): - return super(StructField, self).__eq__(other) and \ + return super().__eq__(other) and \ self.attribute_list == other.attribute_list and \ self.ordinal == other.ordinal and \ self.typename == other.typename and \ self.default_value == other.default_value + def __repr__(self): + return ("StructField(mojom_name = %s, attribute_list = %s, ordinal = %s, " + "typename = %s, default_value = %s") % ( + self.mojom_name, self.attribute_list, self.ordinal, + self.typename, self.default_value) + # This needs to be declared after |StructField|. class StructBody(NodeListBase): @@ -394,29 +429,29 @@ class Union(Definition): def __init__(self, mojom_name, attribute_list, body, **kwargs): assert attribute_list is None or isinstance(attribute_list, AttributeList) assert isinstance(body, UnionBody) - super(Union, self).__init__(mojom_name, **kwargs) + super().__init__(mojom_name, **kwargs) self.attribute_list = attribute_list self.body = body def __eq__(self, other): - return super(Union, self).__eq__(other) and \ + return super().__eq__(other) and \ self.attribute_list == other.attribute_list and \ self.body == other.body class UnionField(Definition): def __init__(self, mojom_name, attribute_list, ordinal, typename, **kwargs): - assert _IsStrOrUnicode(mojom_name) + assert isinstance(mojom_name, str) assert attribute_list is None or isinstance(attribute_list, AttributeList) assert ordinal is None or isinstance(ordinal, Ordinal) - assert _IsStrOrUnicode(typename) - super(UnionField, self).__init__(mojom_name, **kwargs) + assert isinstance(typename, str) + super().__init__(mojom_name, **kwargs) self.attribute_list = attribute_list self.ordinal = ordinal self.typename = typename def __eq__(self, other): - return super(UnionField, self).__eq__(other) and \ + return super().__eq__(other) and \ self.attribute_list == other.attribute_list and \ self.ordinal == other.ordinal and \ self.typename == other.typename |