/src/lib/design_patterns/undoable_command.e
Specman e | 38 lines | 8 code | 3 blank | 27 comment | 0 complexity | a4f8b7d142f04cfab90300dedf8a87ce MD5 | raw file
1-- This file is part of a Liberty Eiffel library. 2-- See the full copyright at the end. 3-- 4deferred class UNDOABLE_COMMAND 5 -- 6 -- Another useful Command, that can be undone. 7 -- 8 9inherit 10 COMMAND 11 12feature {ANY} 13 undo: COMMAND 14 -- A command that makes the execution of Current undone. 15 deferred 16 end 17 18end -- class UNDOABLE_COMMAND 19-- 20-- Copyright (C) 2009-2017: by all the people cited in the AUTHORS file. 21-- 22-- Permission is hereby granted, free of charge, to any person obtaining a copy 23-- of this software and associated documentation files (the "Software"), to deal 24-- in the Software without restriction, including without limitation the rights 25-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 26-- copies of the Software, and to permit persons to whom the Software is 27-- furnished to do so, subject to the following conditions: 28-- 29-- The above copyright notice and this permission notice shall be included in 30-- all copies or substantial portions of the Software. 31-- 32-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 33-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 34-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 35-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 36-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 37-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 38-- THE SOFTWARE.