/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.compiler.ast;

import org.eclipse.jdt.internal.compiler.lookup.*;

public abstract class NameReference extends Reference implements InvocationSite, BindingIds {

	public Binding binding, codegenBinding; //may be aTypeBinding-aFieldBinding-aLocalVariableBinding
	
	public TypeBinding receiverType;		// raw receiver type
	public TypeBinding actualReceiverType;	// modified receiver type - actual one according to namelookup

	//the error printing
	//some name reference are build as name reference but
	//only used as type reference. When it happens, instead of
	//creating a new objet (aTypeReference) we just flag a boolean
	//This concesion is valuable while their are cases when the NameReference
	//will be a TypeReference (static message sends.....) and there is
	//no changeClass in java.
public NameReference() {
	super();
	bits |= TYPE | VARIABLE; // restrictiveFlag
	
}
public FieldBinding fieldBinding() {
	//this method should be sent ONLY after a check against isFieldReference()
	//check its use doing senders.........

	return (FieldBinding) binding ;
}
public boolean isSuperAccess() {
	return false;
}
public boolean isTypeAccess() {
	// null is acceptable when we are resolving the first part of a reference
	return binding == null || binding instanceof ReferenceBinding;
}
public boolean isTypeReference() {
	return binding instanceof ReferenceBinding;
}
public void setActualReceiverType(ReferenceBinding receiverType) {
	this.actualReceiverType = receiverType;
}
public void setDepth(int depth) {
	bits &= ~DepthMASK; // flush previous depth if any			
	if (depth > 0) {
		bits |= (depth & 0xFF) << DepthSHIFT; // encoded on 8 bits
	}
}
public void setFieldIndex(int index){
	// ignored
}

public abstract String unboundReferenceErrorName();
}