| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.codehaus.groovy.ast.expr; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.codehaus.groovy.ast.GroovyCodeVisitor; |
| |
| /** |
| * Represents a tuple expression {1, 2, 3} which creates an immutable List |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> |
| * @version $Revision$ |
| */ |
| public class TupleExpression extends Expression { |
| private List expressions; |
| |
| public TupleExpression() { |
| this(0); |
| } |
| |
| public TupleExpression(Expression expr) { |
| this(1); |
| addExpression(expr); |
| } |
| |
| public TupleExpression(Expression expr1, Expression expr2) { |
| this(2); |
| addExpression(expr1); |
| addExpression(expr2); |
| } |
| |
| public TupleExpression(Expression expr1, Expression expr2, Expression expr3) { |
| this(3); |
| addExpression(expr1); |
| addExpression(expr2); |
| addExpression(expr3); |
| } |
| |
| public TupleExpression(int length) { |
| this.expressions = new ArrayList(length); |
| } |
| |
| public TupleExpression(List expressions) { |
| this.expressions = expressions; |
| } |
| |
| public TupleExpression(Expression[] expressionArray) { |
| this(); |
| expressions.addAll(Arrays.asList(expressionArray)); |
| } |
| |
| public TupleExpression addExpression(Expression expression) { |
| expressions.add(expression); |
| return this; |
| } |
| |
| public List getExpressions() { |
| return expressions; |
| } |
| |
| public void visit(GroovyCodeVisitor visitor) { |
| visitor.visitTupleExpression(this); |
| } |
| |
| public Expression transformExpression(ExpressionTransformer transformer) { |
| Expression ret = new TupleExpression(transformExpressions(getExpressions(), transformer)); |
| ret.setSourcePosition(this); |
| return ret; |
| } |
| |
| public Expression getExpression(int i) { |
| return (Expression) expressions.get(i); |
| } |
| |
| public String getText() { |
| StringBuffer buffer = new StringBuffer("("); |
| boolean first = true; |
| for (Iterator iter = expressions.iterator(); iter.hasNext(); ) { |
| if (first) { |
| first = false; |
| } |
| else { |
| buffer.append(", "); |
| } |
| |
| buffer.append(((Expression)iter.next()).getText()); |
| } |
| buffer.append(")"); |
| return buffer.toString(); |
| } |
| |
| public String toString() { |
| return super.toString() + expressions; |
| } |
| } |