/*******************************************************************************
 * Copyright (c) 2000, 2003 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 net.sourceforge.phpdt.internal.compiler.lookup;

import net.sourceforge.phpdt.core.compiler.CharOperation;

public class UnresolvedReferenceBinding extends ReferenceBinding {
	ReferenceBinding resolvedType;

	UnresolvedReferenceBinding(char[][] compoundName,
			PackageBinding packageBinding) {
		this.compoundName = compoundName;
		this.fPackage = packageBinding;
	}

	String debugName() {
		return toString();
	}

	ReferenceBinding resolve(LookupEnvironment environment) {
		if (resolvedType != null)
			return resolvedType;

		ReferenceBinding environmentType = fPackage
				.getType0(compoundName[compoundName.length - 1]);
		if (environmentType == this)
			environmentType = environment.askForType(compoundName);
		if (environmentType != null && environmentType != this) { // could not
																	// resolve
																	// any
																	// better,
																	// error was
																	// already
																	// reported
																	// against
																	// it
			resolvedType = environmentType;
			environment.updateArrayCache(this, environmentType);
			return environmentType; // when found, it replaces the unresolved
									// type in the cache
		}

		environment.problemReporter.isClassPathCorrect(compoundName, null);
		return null; // will not get here since the above error aborts the
						// compilation
	}

	public String toString() {
		return "Unresolved type " + ((compoundName != null) ? CharOperation.toString(compoundName) : "UNNAMED"); //$NON-NLS-1$ //$NON-NLS-2$
	}
}
