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Groovy: A powerful, dynamic language for the JVM
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.ast.GroovyCodeVisitor;
import org.codehaus.groovy.syntax.Token;
/**
* Represents a prefix expression like ++foo or --bar
*
* @author James Strachan
*/
public class PrefixExpression extends Expression {
private Token operation;
private Expression expression;
public PrefixExpression(Token operation, Expression expression) {
this.operation = operation;
this.expression = expression;
}
public String toString() {
return super.toString() + "[" + operation + expression + "]";
}
public void visit(GroovyCodeVisitor visitor) {
visitor.visitPrefixExpression(this);
}
public Expression transformExpression(ExpressionTransformer transformer) {
Expression ret = new PrefixExpression(operation, transformer.transform(expression));
ret.setSourcePosition(this);
ret.copyNodeMetaData(this);
return ret;
}
public void setExpression(Expression expression) {
this.expression = expression;
}
public Token getOperation() {
return operation;
}
public Expression getExpression() {
return expression;
}
public String getText() {
return "(" + operation.getText() + expression.getText() + ")";
}
public ClassNode getType() {
return expression.getType();
}
}