1#!/usr/bin/env python 2# 3# Copyright 2007 Neal Norwitz 4# Portions Copyright 2007 Google Inc. 5# 6# Licensed under the Apache License, Version 2.0 (the "License"); 7# you may not use this file except in compliance with the License. 8# You may obtain a copy of the License at 9# 10# http://www.apache.org/licenses/LICENSE-2.0 11# 12# Unless required by applicable law or agreed to in writing, software 13# distributed under the License is distributed on an "AS IS" BASIS, 14# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15# See the License for the specific language governing permissions and 16# limitations under the License. 17 18"""C++ keywords and helper utilities for determining keywords.""" 19 20try: 21 # Python 3.x 22 import builtins 23except ImportError: 24 # Python 2.x 25 import __builtin__ as builtins 26 27 28if not hasattr(builtins, 'set'): 29 # Nominal support for Python 2.3. 30 from sets import Set as set 31 32 33TYPES = set('bool char int long short double float void wchar_t unsigned signed'.split()) 34TYPE_MODIFIERS = set('auto register const inline extern static virtual volatile mutable'.split()) 35ACCESS = set('public protected private friend'.split()) 36 37CASTS = set('static_cast const_cast dynamic_cast reinterpret_cast'.split()) 38 39OTHERS = set('true false asm class namespace using explicit this operator sizeof'.split()) 40OTHER_TYPES = set('new delete typedef struct union enum typeid typename template'.split()) 41 42CONTROL = set('case switch default if else return goto'.split()) 43EXCEPTION = set('try catch throw'.split()) 44LOOP = set('while do for break continue'.split()) 45 46ALL = TYPES | TYPE_MODIFIERS | ACCESS | CASTS | OTHERS | OTHER_TYPES | CONTROL | EXCEPTION | LOOP 47 48 49def IsKeyword(token): 50 return token in ALL 51 52def IsBuiltinType(token): 53 if token in ('virtual', 'inline'): 54 # These only apply to methods, they can't be types by themselves. 55 return False 56 return token in TYPES or token in TYPE_MODIFIERS 57