1 /*
2 $Id: MapExpression.java,v 1.9 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.List;
50
51 import org.codehaus.groovy.ast.ClassHelper;
52 import org.codehaus.groovy.ast.GroovyCodeVisitor;
53
54 /***
55 * Represents a map expression [1 : 2, "a" : "b", x : y] which creates a mutable Map
56 *
57 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
58 * @version $Revision: 1.9 $
59 */
60 public class MapExpression extends Expression {
61 private List mapEntryExpressions;
62
63 public MapExpression() {
64 this(new ArrayList());
65 }
66
67 public MapExpression(List mapEntryExpressions) {
68 this.mapEntryExpressions = mapEntryExpressions;
69 //TODO: get the type's of the expressions to specify the
70 // map type to Map<X> if possible.
71 setType(ClassHelper.MAP_TYPE);
72 }
73
74 public void addMapEntryExpression(MapEntryExpression expression) {
75 mapEntryExpressions.add(expression);
76 }
77
78 public List getMapEntryExpressions() {
79 return mapEntryExpressions;
80 }
81
82 public void visit(GroovyCodeVisitor visitor) {
83 visitor.visitMapExpression(this);
84 }
85
86 public boolean isDynamic() {
87 return false; //To change body of implemented methods use File | Settings | File Templates.
88 }
89
90 public Expression transformExpression(ExpressionTransformer transformer) {
91 Expression ret = new MapExpression(transformExpressions(getMapEntryExpressions(), transformer));
92 ret.setSourcePosition(this);
93 return ret;
94 }
95
96 public String toString() {
97 return super.toString() + mapEntryExpressions;
98 }
99
100 public String getText() {
101 StringBuffer sb = new StringBuffer(32);
102 sb.append("[");
103 int size = mapEntryExpressions.size();
104 MapEntryExpression mapEntryExpression = null;
105 if (size > 0) {
106 mapEntryExpression = (MapEntryExpression) mapEntryExpressions.get(0);
107 sb.append(mapEntryExpression.getKeyExpression().getText() + ":" + mapEntryExpression.getValueExpression().getText());
108 for (int i = 1; i < size; i++) {
109 mapEntryExpression = (MapEntryExpression) mapEntryExpressions.get(i);
110 sb.append(", " + mapEntryExpression.getKeyExpression().getText() + ":" + mapEntryExpression.getValueExpression().getText());
111 if (sb.length() > 120 && i < size - 1) {
112 sb.append(", ... ");
113 break;
114 }
115 }
116 }
117 sb.append("]");
118 return sb.toString();
119 }
120
121 public void addMapEntryExpression(Expression keyExpression, Expression valueExpression) {
122 addMapEntryExpression(new MapEntryExpression(keyExpression, valueExpression));
123 }
124
125 }