/*******************************************************************************
 * Copyright (c) 2004, 2011 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:
 *     John Camelon (IBM) - Initial API and implementation
 *     Yuan Zhang / Beth Tibbitts (IBM Research)
 *     Markus Schorn (Wind River Systems)
 *******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.c;

import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTProblem;
import org.eclipse.cdt.core.dom.ast.IASTProblemExpression;
import org.eclipse.cdt.core.dom.ast.ISemanticProblem;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.internal.core.dom.parser.ProblemType;

public class CASTProblemExpression extends CASTProblemOwner implements IASTProblemExpression {

    public CASTProblemExpression() {
		super();
	}

	public CASTProblemExpression(IASTProblem problem) {
		super(problem);
	}

	@Override
	public CASTProblemExpression copy() {
		return copy(CopyStyle.withoutLocations);
	}

	@Override
	public CASTProblemExpression copy(CopyStyle style) {
		CASTProblemExpression copy = new CASTProblemExpression();
		return copy(copy, style);
	}
	
	@Override
	public boolean accept(ASTVisitor action) {
        if (action.shouldVisitExpressions) {
		    switch (action.visit(this)) {
	            case ASTVisitor.PROCESS_ABORT: return false;
	            case ASTVisitor.PROCESS_SKIP: return true;
	            default: break;
	        }
		}

        super.accept(action);	// visits the problem

        if (action.shouldVisitExpressions) {
		    switch (action.leave(this)) {
	            case ASTVisitor.PROCESS_ABORT: return false;
	            case ASTVisitor.PROCESS_SKIP: return true;
	            default: break;
	        }
		}
        return true;
    }
    
    @Override
	public IType getExpressionType() {
		return new ProblemType(ISemanticProblem.TYPE_UNKNOWN_FOR_EXPRESSION);
    }

	@Override
	public boolean isLValue() {
		return false;
	}
	
	@Override
	public ValueCategory getValueCategory() {
		return ValueCategory.PRVALUE;
	}
}
