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/*******************************************************************************
 * Copyright (c) 2004, 2007 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * IBM - Initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;

import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IASTExpressionStatement;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguityParent;

/**
 * @author jcamelon
 */
public class CPPASTExpressionStatement extends CPPASTNode implements
        IASTExpressionStatement, IASTAmbiguityParent {
	
    private IASTExpression expression;

    
    public CPPASTExpressionStatement() {
	}

	public CPPASTExpressionStatement(IASTExpression expression) {
		setExpression(expression);
	}

	public IASTExpression getExpression() {
        return expression;
    }

    public void setExpression(IASTExpression expression) {
        this.expression = expression;
        if (expression != null) {
			expression.setParent(this);
			expression.setPropertyInParent(EXPRESSION);
		}
    }

    @Override
	public boolean accept( ASTVisitor action ){
        if( action.shouldVisitStatements ){
		    switch( action.visit( this ) ){
	            case ASTVisitor.PROCESS_ABORT : return false;
	            case ASTVisitor.PROCESS_SKIP  : return true;
	            default : break;
	        }
		}
        if( expression != null ) if( !expression.accept( action ) ) return false;
        if( action.shouldVisitExpressions ){
		    switch( action.leave( this ) ){
	            case ASTVisitor.PROCESS_ABORT : return false;
	            case ASTVisitor.PROCESS_SKIP  : return true;
	            default : break;
	        }
		}
        return true;
    }

    public void replace(IASTNode child, IASTNode other) {
        if( child == expression )
        {
            other.setPropertyInParent( child.getPropertyInParent() );
            other.setParent( child.getParent() );
            expression  = (IASTExpression) other;
        }
    }

}

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