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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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/* *******************************************************************
 * Copyright (c) 2009 Contributors
 * All rights reserved.
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Public License v 2.0
 * which accompanies this distribution and is available at
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
 *
 * Contributors:
 *     Andy Clement     initial implementation
 * ******************************************************************/
package org.aspectj.weaver;

/**
 * Carries an array of unresolved types - will resolve them on demand. Can be used where currently the entire array gets resolved
 * and a ResolvedType array is passed on. Depending on the situation there may not be a need to resolve all the entries so this can
 * perform better. Note: the array elements are resolved in place, so the caller should not be surprised if elements and resolved
 * after the type list has been used.
 *
 * @author Andy Clement
 */
public class ResolvableTypeList {

	public int length;
	private World world;
	private UnresolvedType[] types;

	public ResolvableTypeList(World world, UnresolvedType[] unresolvedTypes) {
		length = unresolvedTypes.length;
		types = unresolvedTypes;
		this.world = world;
	}

	public ResolvedType getResolved(int nameIndex) {
		UnresolvedType ut = types[nameIndex];
		if (!(ut instanceof ResolvedType)) {
			types[nameIndex] = world.resolve(ut);
			return (ResolvedType) types[nameIndex];
		} else {
			return (ResolvedType) ut;
		}
	}
}