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The AspectJ matcher can be used for matching pointcuts independently of any AspectJ compilation or weaving steps. Most notably, this can be used by frameworks such as Spring AOP which utilise the @AspectJ pointcut syntax but implement aspect weaving in a way independent of AspectJ, e.g. using dynamic proxies.

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/* *******************************************************************
 * Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
 * 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:
 *     PARC     initial implementation
 * ******************************************************************/

package org.aspectj.weaver.ast;

import org.aspectj.weaver.ResolvedType;

public class Var extends Expr {
	public static final Var[] NONE = new Var[0];
	ResolvedType variableType;

	public Var(ResolvedType variableType) {
		super();
		this.variableType = variableType;
	}

	public ResolvedType getType() {
		return variableType;
	}

	public String toString() {
		return "(Var " + variableType + ")";
	}

	public void accept(IExprVisitor v) {
		v.visit(this);
	}

	/**
	 * For an annotation this will return a variable that can access a specific field of the annotation (of the specified type) TODO
	 * what kind of behaviour happens for two annotation fields of the same type?
	 *
	 * @param formalType
	 * @param formalName
	 * @return
	 */
	public Var getAccessorForValue(ResolvedType formalType, String formalName) {
		throw new IllegalStateException("Only makes sense for annotation variables");
	}
}