1 #!/usr/bin/env python 2 3 """ 4 Core objects. 5 6 Copyright (C) 2015, 2016 Paul Boddie <paul@boddie.org.uk> 7 8 This program is free software; you can redistribute it and/or modify it under 9 the terms of the GNU General Public License as published by the Free Software 10 Foundation; either version 3 of the License, or (at your option) any later 11 version. 12 13 This program is distributed in the hope that it will be useful, but WITHOUT 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 15 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 16 details. 17 18 You should have received a copy of the GNU General Public License along with 19 this program. If not, see <http://www.gnu.org/licenses/>. 20 """ 21 22 class object: 23 24 "The root class of all objects except functions." 25 26 def __init__(self): 27 "No-operation." 28 pass 29 30 def __bool__(self): 31 "Objects are true by default." 32 return True 33 34 class function: 35 36 """ 37 The class of all function objects. 38 Note that as a special case, function does not inherit from object. 39 """ 40 41 def __init__(self): 42 43 """ 44 Reserve special attributes for function instances. 45 """ 46 47 self.__fn__ = None 48 self.__args__ = None 49 50 def __bool__(self): 51 "Functions are true by default." 52 return True 53 54 class type(object): 55 56 "The class of all classes." 57 58 pass 59 60 class BaseException(object): pass 61 class Exception(BaseException): pass 62 class Warning(object): pass 63 64 # vim: tabstop=4 expandtab shiftwidth=4
