1 /*
2 $Id: MapExpression.java,v 1.6 2005/05/20 16:28:49 phk 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 import java.util.Map;
51
52 import org.codehaus.groovy.ast.GroovyCodeVisitor;
53 import org.codehaus.groovy.classgen.AsmClassGenerator;
54
55 /***
56 * Represents a map expression [1 : 2, "a" : "b", x : y] which creates a mutable Map
57 *
58 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
59 * @version $Revision: 1.6 $
60 */
61 public class MapExpression extends Expression {
62 private List mapEntryExpressions;
63
64 public MapExpression() {
65 this(new ArrayList());
66 }
67
68 public MapExpression(List mapEntryExpressions) {
69 this.mapEntryExpressions = mapEntryExpressions;
70 }
71
72 public void addMapEntryExpression(MapEntryExpression expression) {
73 mapEntryExpressions.add(expression);
74 }
75
76 public List getMapEntryExpressions() {
77 return mapEntryExpressions;
78 }
79
80 public void visit(GroovyCodeVisitor visitor) {
81 visitor.visitMapExpression(this);
82 }
83
84 public boolean isDynamic() {
85 return false; //To change body of implemented methods use File | Settings | File Templates.
86 }
87
88 public Expression transformExpression(ExpressionTransformer transformer) {
89 return new MapExpression(transformExpressions(getMapEntryExpressions(), transformer));
90 }
91
92 public String toString() {
93 return super.toString() + mapEntryExpressions;
94 }
95
96 public String getText() {
97 StringBuffer sb = new StringBuffer(32);
98 sb.append("[");
99 int size = mapEntryExpressions.size();
100 MapEntryExpression mapEntryExpression = null;
101 if (size > 0) {
102 mapEntryExpression = (MapEntryExpression) mapEntryExpressions.get(0);
103 sb.append(mapEntryExpression.getKeyExpression().getText() + ":" + mapEntryExpression.getValueExpression().getText());
104 for (int i = 1; i < size; i++) {
105 mapEntryExpression = (MapEntryExpression) mapEntryExpressions.get(i);
106 sb.append(", " + mapEntryExpression.getKeyExpression().getText() + ":" + mapEntryExpression.getValueExpression().getText());
107 if (sb.length() > 120 && i < size - 1) {
108 sb.append(", ... ");
109 break;
110 }
111 }
112 }
113 sb.append("]");
114 return sb.toString();
115 }
116
117 public void addMapEntryExpression(Expression keyExpression, Expression valueExpression) {
118 addMapEntryExpression(new MapEntryExpression(keyExpression, valueExpression));
119 }
120
121 protected void resolveType(AsmClassGenerator resolver) {
122 for (int i = 0; i < mapEntryExpressions.size(); i++) {
123 MapEntryExpression mapEntryExpression = (MapEntryExpression) mapEntryExpressions.get(i);
124 mapEntryExpression.resolve(resolver);
125 }
126 super.setTypeClass(Map.class);
127 }
128 }