001 /*
002 $Id: MapExpression.java,v 1.8 2005/11/13 16:42:09 blackdrag Exp $
003
004 Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
005
006 Redistribution and use of this software and associated documentation
007 ("Software"), with or without modification, are permitted provided
008 that the following conditions are met:
009
010 1. Redistributions of source code must retain copyright
011 statements and notices. Redistributions must also contain a
012 copy of this document.
013
014 2. Redistributions in binary form must reproduce the
015 above copyright notice, this list of conditions and the
016 following disclaimer in the documentation and/or other
017 materials provided with the distribution.
018
019 3. The name "groovy" must not be used to endorse or promote
020 products derived from this Software without prior written
021 permission of The Codehaus. For written permission,
022 please contact info@codehaus.org.
023
024 4. Products derived from this Software may not be called "groovy"
025 nor may "groovy" appear in their names without prior written
026 permission of The Codehaus. "groovy" is a registered
027 trademark of The Codehaus.
028
029 5. Due credit should be given to The Codehaus -
030 http://groovy.codehaus.org/
031
032 THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
033 ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
034 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
035 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
036 THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
037 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
038 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
039 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
040 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
041 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
042 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
043 OF THE POSSIBILITY OF SUCH DAMAGE.
044
045 */
046 package org.codehaus.groovy.ast.expr;
047
048 import java.util.ArrayList;
049 import java.util.List;
050
051 import org.codehaus.groovy.ast.ClassHelper;
052 import org.codehaus.groovy.ast.GroovyCodeVisitor;
053
054 /**
055 * Represents a map expression [1 : 2, "a" : "b", x : y] which creates a mutable Map
056 *
057 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
058 * @version $Revision: 1.8 $
059 */
060 public class MapExpression extends Expression {
061 private List mapEntryExpressions;
062
063 public MapExpression() {
064 this(new ArrayList());
065 }
066
067 public MapExpression(List mapEntryExpressions) {
068 this.mapEntryExpressions = mapEntryExpressions;
069 //TODO: get the type's of the expressions to specify the
070 // map type to Map<X> if possible.
071 setType(ClassHelper.MAP_TYPE);
072 }
073
074 public void addMapEntryExpression(MapEntryExpression expression) {
075 mapEntryExpressions.add(expression);
076 }
077
078 public List getMapEntryExpressions() {
079 return mapEntryExpressions;
080 }
081
082 public void visit(GroovyCodeVisitor visitor) {
083 visitor.visitMapExpression(this);
084 }
085
086 public boolean isDynamic() {
087 return false; //To change body of implemented methods use File | Settings | File Templates.
088 }
089
090 public Expression transformExpression(ExpressionTransformer transformer) {
091 return new MapExpression(transformExpressions(getMapEntryExpressions(), transformer));
092 }
093
094 public String toString() {
095 return super.toString() + mapEntryExpressions;
096 }
097
098 public String getText() {
099 StringBuffer sb = new StringBuffer(32);
100 sb.append("[");
101 int size = mapEntryExpressions.size();
102 MapEntryExpression mapEntryExpression = null;
103 if (size > 0) {
104 mapEntryExpression = (MapEntryExpression) mapEntryExpressions.get(0);
105 sb.append(mapEntryExpression.getKeyExpression().getText() + ":" + mapEntryExpression.getValueExpression().getText());
106 for (int i = 1; i < size; i++) {
107 mapEntryExpression = (MapEntryExpression) mapEntryExpressions.get(i);
108 sb.append(", " + mapEntryExpression.getKeyExpression().getText() + ":" + mapEntryExpression.getValueExpression().getText());
109 if (sb.length() > 120 && i < size - 1) {
110 sb.append(", ... ");
111 break;
112 }
113 }
114 }
115 sb.append("]");
116 return sb.toString();
117 }
118
119 public void addMapEntryExpression(Expression keyExpression, Expression valueExpression) {
120 addMapEntryExpression(new MapEntryExpression(keyExpression, valueExpression));
121 }
122
123 }