001: /*
002: $Id: ClosureExpression.java 3104 2005-11-13 16:42:14Z 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.ClassHelper;
049: import org.codehaus.groovy.ast.GroovyCodeVisitor;
050: import org.codehaus.groovy.ast.Parameter;
051: import org.codehaus.groovy.ast.VariableScope;
052: import org.codehaus.groovy.ast.stmt.Statement;
053: import org.codehaus.groovy.runtime.InvokerHelper;
054:
055: /**
056: * Represents a closure creation expression such as { statement; }
057: * or { i : statement; } or { i, x, String y: statement }
058: *
059: * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
060: * @version $Revision: 3104 $
061: */
062: public class ClosureExpression extends Expression {
063:
064: private Parameter[] parameters;
065: private Statement code;
066: private VariableScope variableScope;
067:
068: public ClosureExpression(Parameter[] parameters, Statement code) {
069: this .parameters = parameters;
070: this .code = code;
071: super .setType(ClassHelper.CLOSURE_TYPE);
072: }
073:
074: public void visit(GroovyCodeVisitor visitor) {
075: visitor.visitClosureExpression(this );
076: }
077:
078: public Expression transformExpression(
079: ExpressionTransformer transformer) {
080: return this ;
081: }
082:
083: public String toString() {
084: return super .toString() + InvokerHelper.toString(parameters)
085: + "{ " + code + " }";
086: }
087:
088: public Statement getCode() {
089: return code;
090: }
091:
092: public Parameter[] getParameters() {
093: return parameters;
094: }
095:
096: public boolean isParameterSpecified() {
097: return parameters != null && parameters.length > 0;
098: }
099:
100: public VariableScope getVariableScope() {
101: return variableScope;
102: }
103:
104: public void setVariableScope(VariableScope variableScope) {
105: this.variableScope = variableScope;
106: }
107:
108: }
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