001: /*
002: $Id: TernaryExpression.java 3419 2006-01-19 00:07:02Z 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 org.codehaus.groovy.ast.ClassNode;
049: import org.codehaus.groovy.ast.GroovyCodeVisitor;
050:
051: /**
052: * Represents a ternary expression (booleanExpression) ? expression : expression
053: *
054: * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
055: * @version $Revision: 3419 $
056: */
057: public class TernaryExpression extends Expression {
058:
059: private BooleanExpression booleanExpression;
060: private Expression trueExpression;
061: private Expression falseExpression;
062:
063: public TernaryExpression(BooleanExpression booleanExpression,
064: Expression trueExpression, Expression falseExpression) {
065: this .booleanExpression = booleanExpression;
066: this .trueExpression = trueExpression;
067: this .falseExpression = falseExpression;
068: }
069:
070: public void visit(GroovyCodeVisitor visitor) {
071: visitor.visitTernaryExpression(this );
072: }
073:
074: public Expression transformExpression(
075: ExpressionTransformer transformer) {
076: Expression ret = new TernaryExpression(
077: (BooleanExpression) transformer
078: .transform(booleanExpression), transformer
079: .transform(trueExpression), transformer
080: .transform(falseExpression));
081: ret.setSourcePosition(this );
082: return ret;
083: }
084:
085: public String toString() {
086: return super .toString() + "[" + booleanExpression + " ? "
087: + trueExpression + " : " + falseExpression + "]";
088: }
089:
090: public BooleanExpression getBooleanExpression() {
091: return booleanExpression;
092: }
093:
094: public Expression getFalseExpression() {
095: return falseExpression;
096: }
097:
098: public Expression getTrueExpression() {
099: return trueExpression;
100: }
101:
102: public String getText() {
103: return "(" + booleanExpression.getText() + ") ? "
104: + trueExpression.getText() + " : "
105: + falseExpression.getText();
106: }
107:
108: public ClassNode getType() {
109: return trueExpression.getType();
110: }
111: }
|