001 /* 002 $Id: SwitchStatement.java,v 1.4 2005/01/31 09:25:41 jstrachan 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.stmt; 047 048 import java.util.ArrayList; 049 import java.util.List; 050 051 import org.codehaus.groovy.ast.GroovyCodeVisitor; 052 import org.codehaus.groovy.ast.expr.Expression; 053 054 /** 055 * Represents a switch (object) { case value: ... case [1, 2, 3]: ... default: ... } statement in Groovy. 056 * 057 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> 058 * @version $Revision: 1.4 $ 059 */ 060 public class SwitchStatement extends Statement { 061 062 private Expression expression; 063 private List caseStatements = new ArrayList(); 064 private Statement defaultStatement; 065 066 067 public SwitchStatement(Expression expression) { 068 this(expression, EmptyStatement.INSTANCE); 069 } 070 071 public SwitchStatement(Expression expression, Statement defaultStatement) { 072 this.expression = expression; 073 this.defaultStatement = defaultStatement; 074 } 075 076 public SwitchStatement(Expression expression, List caseStatements, Statement defaultStatement) { 077 this.expression = expression; 078 this.caseStatements = caseStatements; 079 this.defaultStatement = defaultStatement; 080 } 081 082 public void visit(GroovyCodeVisitor visitor) { 083 visitor.visitSwitch(this); 084 } 085 086 public List getCaseStatements() { 087 return caseStatements; 088 } 089 090 public Expression getExpression() { 091 return expression; 092 } 093 094 public Statement getDefaultStatement() { 095 return defaultStatement; 096 } 097 098 public void setDefaultStatement(Statement defaultStatement) { 099 this.defaultStatement = defaultStatement; 100 } 101 102 public void addCase(CaseStatement caseStatement) { 103 caseStatements.add(caseStatement); 104 } 105 106 /** 107 * @return the case statement of the given index or null 108 */ 109 public CaseStatement getCaseStatement(int idx) { 110 if (idx >= 0 && idx < caseStatements.size()) { 111 return (CaseStatement) caseStatements.get(idx); 112 } 113 return null; 114 } 115 }