/interpreter/tags/at2dist170907/src/edu/vub/at/objects/grammar/ATSymbol.java
Java | 59 lines | 9 code | 6 blank | 44 comment | 0 complexity | 0bd2cd776a2fc7b4345fb902d6f8c5f0 MD5 | raw file
1/** 2 * AmbientTalk/2 Project 3 * ATSymbol.java created on 26-jul-2006 at 15:10:15 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 30import edu.vub.at.exceptions.InterpreterException; 31import edu.vub.at.objects.ATText; 32import edu.vub.at.objects.natives.grammar.AGAssignmentSymbol; 33 34/** 35 * The public interface to a symbol reference AG element. 36 * 37 * @author tvcutsem 38 */ 39public interface ATSymbol extends ATExpression { 40 41 /** 42 * Transform a symbol into a string. 43 * Example: <code>`foo.text == "foo"</code> 44 * @return the text of the symbol 45 */ 46 public ATText base_text() throws InterpreterException; 47 48 /** 49 * Returns whether or not the receiver denotes a symbol ending in <tt>:=</tt>. 50 */ 51 public boolean isAssignmentSymbol() throws InterpreterException; 52 53 /** 54 * Example: `(foo).asAssignmentSymbol => `foo:= 55 * @return a symbol denoting the assignment selector for the receiver field name 56 */ 57 public AGAssignmentSymbol asAssignmentSymbol() throws InterpreterException; 58 59}