1 /* 2 $Id: ListExpression.java,v 1.7 2006/01/19 00:06:51 blackdrag Exp $ 3 4 Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved. 5 6 Redistribution and use of this software and associated documentation 7 ("Software"), with or without modification, are permitted provided 8 that the following conditions are met: 9 10 1. Redistributions of source code must retain copyright 11 statements and notices. Redistributions must also contain a 12 copy of this document. 13 14 2. Redistributions in binary form must reproduce the 15 above copyright notice, this list of conditions and the 16 following disclaimer in the documentation and/or other 17 materials provided with the distribution. 18 19 3. The name "groovy" must not be used to endorse or promote 20 products derived from this Software without prior written 21 permission of The Codehaus. For written permission, 22 please contact info@codehaus.org. 23 24 4. Products derived from this Software may not be called "groovy" 25 nor may "groovy" appear in their names without prior written 26 permission of The Codehaus. "groovy" is a registered 27 trademark of The Codehaus. 28 29 5. Due credit should be given to The Codehaus - 30 http://groovy.codehaus.org/ 31 32 THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS 33 ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT 34 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 35 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 36 THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 37 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 38 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 39 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 40 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 41 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 42 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 43 OF THE POSSIBILITY OF SUCH DAMAGE. 44 45 */ 46 package org.codehaus.groovy.ast.expr; 47 48 import java.util.ArrayList; 49 import java.util.Iterator; 50 import java.util.List; 51 52 import org.codehaus.groovy.ast.ClassHelper; 53 import org.codehaus.groovy.ast.GroovyCodeVisitor; 54 55 /*** 56 * Represents a list expression [1, 2, 3] which creates a mutable List 57 * 58 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> 59 * @version $Revision: 1.7 $ 60 */ 61 public class ListExpression extends Expression { 62 private List expressions; 63 64 public ListExpression() { 65 this(new ArrayList()); 66 } 67 68 public ListExpression(List expressions) { 69 this.expressions = expressions; 70 //TODO: get the type's of the expressions to specify the 71 // list type to List<X> if possible. 72 setType(ClassHelper.LIST_TYPE); 73 } 74 75 public void addExpression(Expression expression) { 76 expressions.add(expression); 77 } 78 79 public List getExpressions() { 80 return expressions; 81 } 82 83 public void visit(GroovyCodeVisitor visitor) { 84 visitor.visitListExpression(this); 85 } 86 87 public Expression transformExpression(ExpressionTransformer transformer) { 88 Expression ret = new ListExpression(transformExpressions(getExpressions(), transformer)); 89 ret.setSourcePosition(this); 90 return ret; 91 } 92 93 public Expression getExpression(int i) { 94 return (Expression) expressions.get(i); 95 } 96 97 public String getText() { 98 StringBuffer buffer = new StringBuffer("["); 99 boolean first = true; 100 for (Iterator iter = expressions.iterator(); iter.hasNext(); ) { 101 if (first) { 102 first = false; 103 } 104 else { 105 buffer.append(", "); 106 } 107 108 buffer.append(((Expression)iter.next()).getText()); 109 } 110 buffer.append("]"); 111 return buffer.toString(); 112 } 113 114 public String toString() { 115 return super.toString() + expressions; 116 } 117 }