/interpreter/tags/at2dist041108/src/edu/vub/at/objects/grammar/ATMultiDefinition.java
Java | 63 lines | 6 code | 5 blank | 52 comment | 0 complexity | 64836aa1cda77ae649fb36f03778d0f9 MD5 | raw file
1/** 2 * AmbientTalk/2 Project 3 * ATMultiDefinition.java created on 18-aug-2006 at 10:12:03 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.objects.ATTable; 31 32/** 33 * The public interface to a multiple definition AG element. 34 * 35 * <p> 36 * Example:<code>def [x, y] := [1, 2]</code> 37 * </p><p> 38 * <p> 39 * By using splicing in the left-hand expression, this can be 40 * used to split up tables: <code>def [x, @y] := [1, 2, 3, 4]</code> 41 * </p> 42 * 43 * @author tvc 44 */ 45public interface ATMultiDefinition extends ATDefinition { 46 47 /** 48 * The left-hand side of the definition must be a literal table. 49 * Slicing is allowed at the end. 50 * Example: <code>`{ def [ x, y ] := [ y, x ] }.statements[1].parameters == `[x, y]</code> 51 * @return a table with valid left-expressions 52 */ 53 public ATTable base_parameters(); 54 55 /** 56 * The right-hand side of the definition may be any valid AmbientTalk expression 57 * that evaluates to a native table 58 * Example: <code>`{ def [ x, y ] := [ y, x ] }.statements[1].valueExpression == `[y, x]</code> 59 * @return the value expression 60 */ 61 public ATExpression base_valueExpression(); 62 63}