001: /*
002: $Id: TupleExpression.java 4098 2006-10-10 16:09:48Z blackdrag $
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.Arrays;
050: import java.util.Iterator;
051: import java.util.List;
052:
053: import org.codehaus.groovy.ast.GroovyCodeVisitor;
054:
055: /**
056: * Represents a tuple expression {1, 2, 3} which creates an immutable List
057: *
058: * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
059: * @version $Revision: 4098 $
060: */
061: public class TupleExpression extends Expression {
062: private List expressions;
063:
064: public TupleExpression() {
065: this (new ArrayList());
066: }
067:
068: public TupleExpression(List expressions) {
069: this .expressions = expressions;
070: }
071:
072: public TupleExpression(Expression[] expressionArray) {
073: this ();
074: expressions.addAll(Arrays.asList(expressionArray));
075: }
076:
077: public TupleExpression addExpression(Expression expression) {
078: expressions.add(expression);
079: return this ;
080: }
081:
082: public List getExpressions() {
083: return expressions;
084: }
085:
086: public void visit(GroovyCodeVisitor visitor) {
087: visitor.visitTupleExpression(this );
088: }
089:
090: public Expression transformExpression(
091: ExpressionTransformer transformer) {
092: Expression ret = new TupleExpression(transformExpressions(
093: getExpressions(), transformer));
094: ret.setSourcePosition(this );
095: return ret;
096: }
097:
098: public Expression getExpression(int i) {
099: return (Expression) expressions.get(i);
100: }
101:
102: public String getText() {
103: StringBuffer buffer = new StringBuffer("(");
104: boolean first = true;
105: for (Iterator iter = expressions.iterator(); iter.hasNext();) {
106: if (first) {
107: first = false;
108: } else {
109: buffer.append(", ");
110: }
111:
112: buffer.append(((Expression) iter.next()).getText());
113: }
114: buffer.append(")");
115: return buffer.toString();
116: }
117:
118: public String toString() {
119: return super.toString() + expressions;
120: }
121: }
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