/interpreter/tags/at2dist130208/src/edu/vub/at/objects/grammar/ATLookup.java
Java | 47 lines | 4 code | 3 blank | 40 comment | 0 complexity | e5eed2b479ed05c3a0a9ce3cb45c4aa7 MD5 | raw file
1/** 2 * AmbientTalk/2 Project 3 * ATLookup.java created on 15 jul 2007 at 14:45:48 4 * (c) Programming Technology Lab, 2006 - 2007 5 * Authors: Tom Van Cutsem & Stijn Mostinckx 6 * 7 * Permission is hereby granted, free of charge, to any person 8 * obtaining a copy of this software and associated documentation 9 * files (the "Software"), to deal in the Software without 10 * restriction, including without limitation the rights to use, 11 * copy, modify, merge, publish, distribute, sublicense, and/or 12 * sell copies of the Software, and to permit persons to whom the 13 * Software is furnished to do so, subject to the following 14 * conditions: 15 * 16 * The above copyright notice and this permission notice shall be 17 * included in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 21 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 23 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 24 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 26 * OTHER DEALINGS IN THE SOFTWARE. 27 */ 28package edu.vub.at.objects.grammar; 29 30/** 31 * The public interface to a lookup AG element. 32 * 33 * Example: <code>&x</code> or <code>&m:=</code> 34 * 35 * @author tvcutsem 36 */ 37public interface ATLookup extends ATExpression { 38 39 /** 40 * The selector must be a literal symbol 41 * Example: <code>`(&x).selector == `x</code> 42 * Example: <code>`(&x:=).selector == `x:=</code> 43 * @return the selector 44 */ 45 public ATSymbol base_selector(); 46 47}