/*
 * 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.stmt;

import org.codehaus.groovy.ast.GroovyCodeVisitor;
import org.codehaus.groovy.ast.expr.BooleanExpression;
import org.codehaus.groovy.ast.expr.ConstantExpression;
import org.codehaus.groovy.ast.expr.Expression;

/**
 * Represents an assert statement such as 
 * <code>
 * assert i != 0 : "should never be zero";
 * </code>
 * 
 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
 * @version $Revision$
 */
public class AssertStatement extends Statement {

    private BooleanExpression booleanExpression;
    private Expression messageExpression;
    
    public AssertStatement(BooleanExpression booleanExpression) {
        this(booleanExpression, ConstantExpression.NULL);
    }
    
    public AssertStatement(BooleanExpression booleanExpression, Expression messageExpression) {
        this.booleanExpression = booleanExpression;
        this.messageExpression = messageExpression;
    }
    
    public void visit(GroovyCodeVisitor visitor) {
        visitor.visitAssertStatement(this);
    }

    public Expression getMessageExpression() {
        return messageExpression;
    }

    public BooleanExpression getBooleanExpression() {
        return booleanExpression;
    }
    public void setBooleanExpression(BooleanExpression booleanExpression) {
        this.booleanExpression = booleanExpression;
    }
    public void setMessageExpression(Expression messageExpression) {
        this.messageExpression = messageExpression;
    }
}