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Diffstat (limited to 'mojo/public/tools/bindings/pylib/mojom/parse/ast.py')
| -rw-r--r-- | mojo/public/tools/bindings/pylib/mojom/parse/ast.py | 388 |
1 files changed, 0 insertions, 388 deletions
diff --git a/mojo/public/tools/bindings/pylib/mojom/parse/ast.py b/mojo/public/tools/bindings/pylib/mojom/parse/ast.py deleted file mode 100644 index e1fa4f8..0000000 --- a/mojo/public/tools/bindings/pylib/mojom/parse/ast.py +++ /dev/null @@ -1,388 +0,0 @@ -# Copyright 2014 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. - -"""Node classes for the AST for a Mojo IDL file.""" - -# Note: For convenience of testing, you probably want to define __eq__() methods -# for all node types; it's okay to be slightly lax (e.g., not compare filename -# and lineno). You may also define __repr__() to help with analyzing test -# failures, especially for more complex types. - - -class NodeBase(object): - """Base class for nodes in the AST.""" - - def __init__(self, filename=None, lineno=None): - self.filename = filename - self.lineno = lineno - - def __eq__(self, other): - return type(self) == type(other) - - # Make != the inverse of ==. (Subclasses shouldn't have to override this.) - def __ne__(self, other): - return not self == other - - -# TODO(vtl): Some of this is complicated enough that it should be tested. -class NodeListBase(NodeBase): - """Represents a list of other nodes, all having the same type. (This is meant - to be subclassed, with subclasses defining _list_item_type to be the class (or - classes, in a tuple) of the members of the list.)""" - - def __init__(self, item_or_items=None, **kwargs): - super(NodeListBase, self).__init__(**kwargs) - self.items = [] - if item_or_items is None: - pass - elif isinstance(item_or_items, list): - for item in item_or_items: - assert isinstance(item, self._list_item_type) - self.Append(item) - else: - assert isinstance(item_or_items, self._list_item_type) - self.Append(item_or_items) - - # Support iteration. For everything else, users should just access |items| - # directly. (We intentionally do NOT supply |__len__()| or |__nonzero__()|, so - # |bool(NodeListBase())| is true.) - def __iter__(self): - return self.items.__iter__() - - def __eq__(self, other): - return super(NodeListBase, self).__eq__(other) and \ - self.items == other.items - - # Implement this so that on failure, we get slightly more sensible output. - def __repr__(self): - return self.__class__.__name__ + "([" + \ - ", ".join([repr(elem) for elem in self.items]) + "])" - - def Insert(self, item): - """Inserts item at the front of the list.""" - - assert isinstance(item, self._list_item_type) - self.items.insert(0, item) - self._UpdateFilenameAndLineno() - - def Append(self, item): - """Appends item to the end of the list.""" - - assert isinstance(item, self._list_item_type) - self.items.append(item) - self._UpdateFilenameAndLineno() - - def _UpdateFilenameAndLineno(self): - if self.items: - self.filename = self.items[0].filename - self.lineno = self.items[0].lineno - - -class Definition(NodeBase): - """Represents a definition of anything that has a global name (e.g., enums, - enum values, consts, structs, struct fields, interfaces). (This does not - include parameter definitions.) This class is meant to be subclassed.""" - - def __init__(self, name, **kwargs): - assert isinstance(name, str) - NodeBase.__init__(self, **kwargs) - self.name = name - - -################################################################################ - - -class Attribute(NodeBase): - """Represents an attribute.""" - - def __init__(self, key, value, **kwargs): - assert isinstance(key, str) - super(Attribute, self).__init__(**kwargs) - self.key = key - self.value = value - - def __eq__(self, other): - return super(Attribute, self).__eq__(other) and \ - self.key == other.key and \ - self.value == other.value - - -class AttributeList(NodeListBase): - """Represents a list attributes.""" - - _list_item_type = Attribute - - -class Const(Definition): - """Represents a const definition.""" - - def __init__(self, name, typename, value, **kwargs): - # The typename is currently passed through as a string. - assert isinstance(typename, str) - # The value is either a literal (currently passed through as a string) or a - # "wrapped identifier". - assert isinstance(value, str) or isinstance(value, tuple) - super(Const, self).__init__(name, **kwargs) - self.typename = typename - self.value = value - - def __eq__(self, other): - return super(Const, self).__eq__(other) and \ - self.typename == other.typename and \ - self.value == other.value - - -class Enum(Definition): - """Represents an enum definition.""" - - def __init__(self, name, enum_value_list, **kwargs): - assert isinstance(enum_value_list, EnumValueList) - super(Enum, self).__init__(name, **kwargs) - self.enum_value_list = enum_value_list - - def __eq__(self, other): - return super(Enum, self).__eq__(other) and \ - self.enum_value_list == other.enum_value_list - - -class EnumValue(Definition): - """Represents a definition of an enum value.""" - - def __init__(self, name, value, **kwargs): - # The optional value is either an int (which is current a string) or a - # "wrapped identifier". - assert value is None or isinstance(value, (str, tuple)) - super(EnumValue, self).__init__(name, **kwargs) - self.value = value - - def __eq__(self, other): - return super(EnumValue, self).__eq__(other) and \ - self.value == other.value - - -class EnumValueList(NodeListBase): - """Represents a list of enum value definitions (i.e., the "body" of an enum - definition).""" - - _list_item_type = EnumValue - - -class Import(NodeBase): - """Represents an import statement.""" - - def __init__(self, import_filename, **kwargs): - assert isinstance(import_filename, str) - super(Import, self).__init__(**kwargs) - self.import_filename = import_filename - - def __eq__(self, other): - return super(Import, self).__eq__(other) and \ - self.import_filename == other.import_filename - - -class ImportList(NodeListBase): - """Represents a list (i.e., sequence) of import statements.""" - - _list_item_type = Import - - -class Interface(Definition): - """Represents an interface definition.""" - - def __init__(self, name, attribute_list, body, **kwargs): - assert attribute_list is None or isinstance(attribute_list, AttributeList) - assert isinstance(body, InterfaceBody) - super(Interface, self).__init__(name, **kwargs) - self.attribute_list = attribute_list - self.body = body - - def __eq__(self, other): - return super(Interface, self).__eq__(other) and \ - self.attribute_list == other.attribute_list and \ - self.body == other.body - - -class Method(Definition): - """Represents a method definition.""" - - def __init__(self, name, ordinal, parameter_list, response_parameter_list, - **kwargs): - assert ordinal is None or isinstance(ordinal, Ordinal) - assert isinstance(parameter_list, ParameterList) - assert response_parameter_list is None or \ - isinstance(response_parameter_list, ParameterList) - super(Method, self).__init__(name, **kwargs) - 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 \ - self.ordinal == other.ordinal and \ - self.parameter_list == other.parameter_list and \ - self.response_parameter_list == other.response_parameter_list - - -# This needs to be declared after |Method|. -class InterfaceBody(NodeListBase): - """Represents the body of (i.e., list of definitions inside) an interface.""" - - _list_item_type = (Const, Enum, Method) - - -class Module(NodeBase): - """Represents a module statement.""" - - def __init__(self, name, attribute_list, **kwargs): - # |name| is either none or a "wrapped identifier". - assert name is None or isinstance(name, tuple) - assert attribute_list is None or isinstance(attribute_list, AttributeList) - super(Module, self).__init__(**kwargs) - self.name = name - self.attribute_list = attribute_list - - def __eq__(self, other): - return super(Module, self).__eq__(other) and \ - self.name == other.name and \ - self.attribute_list == other.attribute_list - - -class Mojom(NodeBase): - """Represents an entire .mojom file. (This is the root node.)""" - - def __init__(self, module, import_list, definition_list, **kwargs): - assert module is None or isinstance(module, Module) - assert isinstance(import_list, ImportList) - assert isinstance(definition_list, list) - super(Mojom, self).__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 \ - self.module == other.module and \ - self.import_list == other.import_list and \ - self.definition_list == other.definition_list - - def __repr__(self): - return "%s(%r, %r, %r)" % (self.__class__.__name__, self.module, - self.import_list, self.definition_list) - - -class Ordinal(NodeBase): - """Represents an ordinal value labeling, e.g., a struct field.""" - - def __init__(self, value, **kwargs): - assert isinstance(value, int) - super(Ordinal, self).__init__(**kwargs) - self.value = value - - def __eq__(self, other): - return super(Ordinal, self).__eq__(other) and \ - self.value == other.value - - -class Parameter(NodeBase): - """Represents a method request or response parameter.""" - - def __init__(self, name, ordinal, typename, **kwargs): - assert isinstance(name, str) - assert ordinal is None or isinstance(ordinal, Ordinal) - assert isinstance(typename, str) - super(Parameter, self).__init__(**kwargs) - self.name = name - self.ordinal = ordinal - self.typename = typename - - def __eq__(self, other): - return super(Parameter, self).__eq__(other) and \ - self.name == other.name and \ - self.ordinal == other.ordinal and \ - self.typename == other.typename - - -class ParameterList(NodeListBase): - """Represents a list of (method request or response) parameters.""" - - _list_item_type = Parameter - - -class Struct(Definition): - """Represents a struct definition.""" - - def __init__(self, name, attribute_list, body, **kwargs): - assert attribute_list is None or isinstance(attribute_list, AttributeList) - assert isinstance(body, StructBody) - super(Struct, self).__init__(name, **kwargs) - self.attribute_list = attribute_list - self.body = body - - def __eq__(self, other): - return super(Struct, self).__eq__(other) and \ - self.attribute_list == other.attribute_list and \ - self.body == other.body - - -class StructField(Definition): - """Represents a struct field definition.""" - - def __init__(self, name, ordinal, typename, default_value, **kwargs): - assert isinstance(name, str) - assert ordinal is None or isinstance(ordinal, Ordinal) - 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 isinstance(default_value, (str, tuple)) - super(StructField, self).__init__(name, **kwargs) - self.ordinal = ordinal - self.typename = typename - self.default_value = default_value - - def __eq__(self, other): - return super(StructField, self).__eq__(other) and \ - self.ordinal == other.ordinal and \ - self.typename == other.typename and \ - self.default_value == other.default_value - - -# This needs to be declared after |StructField|. -class StructBody(NodeListBase): - """Represents the body of (i.e., list of definitions inside) a struct.""" - - _list_item_type = (Const, Enum, StructField) - - -class Union(Definition): - """Represents a union definition.""" - - def __init__(self, name, body, **kwargs): - assert isinstance(body, UnionBody) - super(Union, self).__init__(name, **kwargs) - self.body = body - - def __eq__(self, other): - return super(Union, self).__eq__(other) and \ - self.body == other.body - - -class UnionField(Definition): - - def __init__(self, name, ordinal, typename, **kwargs): - assert isinstance(name, str) - assert ordinal is None or isinstance(ordinal, Ordinal) - assert isinstance(typename, str) - super(UnionField, self).__init__(name, **kwargs) - self.ordinal = ordinal - self.typename = typename - - def __eq__(self, other): - return super(UnionField, self).__eq__(other) and \ - self.ordinal == other.ordinal and \ - self.typename == other.typename - - -class UnionBody(NodeListBase): - - _list_item_type = UnionField |