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/*******************************************************************************
 *  Copyright (c) 2006, 2008 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 Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.upc.ast;

import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.upc.ast.IUPCASTSynchronizationStatement;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;

@SuppressWarnings("restriction")
public class UPCASTSynchronizationStatement extends ASTNode implements IUPCASTSynchronizationStatement {

	private int statmentKind;
	private IASTExpression barrierExpression = null;
	
	
	public UPCASTSynchronizationStatement() {
	}

	public UPCASTSynchronizationStatement(IASTExpression barrierExpression, int statmentKind) {
		setBarrierExpression(barrierExpression);
		this.statmentKind = statmentKind;
	}
	
	public UPCASTSynchronizationStatement copy() {
		UPCASTSynchronizationStatement copy = new UPCASTSynchronizationStatement();
		copy.statmentKind = statmentKind;
		copy.setBarrierExpression(barrierExpression == null ? null : barrierExpression.copy());
		copy.setOffsetAndLength(this);
		return copy;
	}

	public IASTExpression getBarrierExpression() {
		return barrierExpression;
	}

	public int getStatementKind() {
		return statmentKind;
	}

	public void setBarrierExpression(IASTExpression expr) {
		this.barrierExpression = expr;
		if(expr != null) {
			expr.setParent(this);
			expr.setPropertyInParent(BARRIER_EXPRESSION);
		}
	}

	public void setStatementKind(int kind) {
		this.statmentKind = kind;
	}
	
	
	@Override
	public boolean accept(ASTVisitor visitor) {
		if(visitor.shouldVisitStatements) {
			switch(visitor.visit(this)) {
				case ASTVisitor.PROCESS_ABORT : return false;
				case ASTVisitor.PROCESS_SKIP  : return true;
			}
		}
		
		if(barrierExpression != null) {
			boolean abort = !barrierExpression.accept(visitor);
			if(abort)
				return false;
		}
		
		if(visitor.shouldVisitStatements) {
			switch(visitor.leave(this)) {
				case ASTVisitor.PROCESS_ABORT : return false;
				case ASTVisitor.PROCESS_SKIP  : return true;
			}
		}
		
		return true;
	}
}

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