001 /* 002 $Id: ClosureExpression.java,v 1.7 2005/02/01 10:46:54 russel 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.expr; 047 048 import groovy.lang.Closure; 049 050 import org.codehaus.groovy.ast.GroovyCodeVisitor; 051 import org.codehaus.groovy.ast.Parameter; 052 import org.codehaus.groovy.ast.VariableScope; 053 import org.codehaus.groovy.ast.stmt.Statement; 054 import org.codehaus.groovy.classgen.AsmClassGenerator; 055 import org.codehaus.groovy.runtime.InvokerHelper; 056 057 058 /** 059 * Represents a closure creation expression such as { statement; } 060 * or { i : statement; } or { i, x, String y: statement } 061 * 062 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> 063 * @version $Revision: 1.7 $ 064 */ 065 public class ClosureExpression extends Expression { 066 067 private Parameter[] parameters; 068 private Statement code; 069 private VariableScope variableScope; 070 071 public ClosureExpression(Parameter[] parameters, Statement code) { 072 this.parameters = parameters; 073 this.code = code; 074 super.setTypeClass(Closure.class); 075 } 076 077 public void visit(GroovyCodeVisitor visitor) { 078 visitor.visitClosureExpression(this); 079 } 080 081 public Expression transformExpression(ExpressionTransformer transformer) { 082 return this; 083 } 084 085 public String toString() { 086 return super.toString() + InvokerHelper.toString(parameters) + "{ " + code + " }"; 087 } 088 089 public Statement getCode() { 090 return code; 091 } 092 093 public Parameter[] getParameters() { 094 return parameters; 095 } 096 097 public boolean isParameterSpecified() { 098 return parameters != null && parameters.length > 0; 099 } 100 101 public VariableScope getVariableScope() { 102 return variableScope; 103 } 104 105 public void setVariableScope(VariableScope variableScope) { 106 this.variableScope = variableScope; 107 } 108 109 protected void resolveType(AsmClassGenerator resolver) { 110 //To change body of implemented methods use File | Settings | File Templates. 111 } 112 113 }