/*******************************************************************************
 * Copyright (c) 2005, 2006 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 Rational Software - Initial API and implementation 
 * Markus Schorn (Wind River Systems)
 *******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.c;

import org.eclipse.cdt.core.dom.ast.IASTArrayModifier;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.ITypedef;
import org.eclipse.cdt.core.dom.ast.c.ICASTArrayModifier;
import org.eclipse.cdt.core.dom.ast.c.ICPointerType;
import org.eclipse.cdt.internal.core.dom.parser.ITypeContainer;
import org.eclipse.cdt.internal.core.index.IIndexType;

/**
 * @author dsteffle
 */
public class CQualifiedPointerType implements ICPointerType, ITypeContainer {
	IType nextType = null;
	IASTArrayModifier mod = null;
	
	public CQualifiedPointerType(IType next, IASTArrayModifier mod) {
		this.nextType = next;
		if (mod instanceof ICASTArrayModifier) this.mod = mod;
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.cdt.core.dom.ast.c.ICPointerType#isRestrict()
	 */
	public boolean isRestrict() {
		if (mod == null || !(mod instanceof ICASTArrayModifier)) return false;
		return ((ICASTArrayModifier)mod).isRestrict();
	}

	/* (non-Javadoc)
	 * @see org.eclipse.cdt.core.dom.ast.IPointerType#getType()
	 */
	public IType getType() {
		return nextType;
	}
	
	public void setType(IType type) {
		nextType = type;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.cdt.core.dom.ast.IPointerType#isConst()
	 */
	public boolean isConst() {
		if (mod == null || !(mod instanceof ICASTArrayModifier)) return false;
		return ((ICASTArrayModifier)mod).isConst();
	}

	/* (non-Javadoc)
	 * @see org.eclipse.cdt.core.dom.ast.IPointerType#isVolatile()
	 */
	public boolean isVolatile() {
		if (mod == null || !(mod instanceof ICASTArrayModifier)) return false;
		return ((ICASTArrayModifier)mod).isVolatile();
	}
	
    public Object clone(){
        IType t = null;
   		try {
            t = (IType) super.clone();
        } catch ( CloneNotSupportedException e ) {
            //not going to happen
        }
        return t;
    }

    /* (non-Javadoc)
     * @see org.eclipse.cdt.core.dom.ast.IType#isSameType(org.eclipse.cdt.core.dom.ast.IType)
     */
    public boolean isSameType( IType type ) {
        if( type == this )
            return true;
        if( type instanceof ITypedef || type instanceof IIndexType)
            return type.isSameType( this );

        if( type instanceof CQualifiedPointerType ){
            CQualifiedPointerType qual = (CQualifiedPointerType) type;
            if( qual.isConst() == isConst() && qual.isRestrict() == isRestrict() && qual.isVolatile() == isVolatile() )
                return getType().isSameType( qual.getType() );
        }
        return false;
    }
}
