001    /*
002     $Id: BlockStatement.java,v 1.6 2003/12/23 10:54:11 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.Arrays;
050    import java.util.Iterator;
051    import java.util.List;
052    
053    import org.codehaus.groovy.ast.GroovyCodeVisitor;
054    
055    /**
056     * A list of statements
057     * 
058     * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
059     * @version $Revision: 1.6 $
060     */
061    public class BlockStatement extends Statement {
062    
063        private List statements;
064        
065        public BlockStatement() {
066            this(new ArrayList());
067        }
068        
069        public BlockStatement(List statements) {
070            this.statements = statements;
071        }
072        
073        public BlockStatement(Statement[] statements) {
074            this();
075            this.statements.addAll(Arrays.asList(statements));
076        }
077    
078        public void visit(GroovyCodeVisitor visitor) {
079            visitor.visitBlockStatement(this);
080        }
081    
082        public List getStatements() {
083            return statements;
084        }
085    
086        public void addStatement(Statement statement) {
087            statements.add(statement);
088        }
089    
090        public void addStatements(List listOfStatements) {
091            statements.addAll(listOfStatements);
092        }
093    
094        public String toString() {
095            return super.toString() + statements;
096        }
097    
098        public String getText() {
099            StringBuffer buffer = new StringBuffer("{ ");
100            boolean first = true;
101            for (Iterator iter = statements.iterator(); iter.hasNext(); ) {
102                if (first) {
103                    first = false;
104                }
105                else {
106                    buffer.append("; ");
107                }
108                Statement statement = (Statement) iter.next();
109                buffer.append(statement.getText());
110            }
111            buffer.append(" }");
112            return buffer.toString();
113        }
114    
115        public boolean isEmpty() {
116            return statements.isEmpty();
117        }
118    
119    }