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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;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import org.aspectj.weaver.patterns.Pointcut;

public class ResolvedPointcutDefinition extends ResolvedMemberImpl {
	private Pointcut pointcut;

	public ResolvedPointcutDefinition(UnresolvedType declaringType, int modifiers, String name, UnresolvedType[] parameterTypes,
			Pointcut pointcut) {
		this(declaringType, modifiers, name, parameterTypes, UnresolvedType.VOID, pointcut);
	}

	/**
	 * An instance which can be given a specific returnType, used f.e. in if() pointcut for @AJ
	 *
	 * @param declaringType
	 * @param modifiers
	 * @param name
	 * @param parameterTypes
	 * @param returnType
	 * @param pointcut
	 */
	public ResolvedPointcutDefinition(UnresolvedType declaringType, int modifiers, String name, UnresolvedType[] parameterTypes,
			UnresolvedType returnType, Pointcut pointcut) {
		super(POINTCUT, declaringType, modifiers, returnType, name, parameterTypes);
		this.pointcut = pointcut;
		// XXXpointcut.assertState(Pointcut.RESOLVED);
		checkedExceptions = UnresolvedType.NONE;
	}

	// ----

	@Override
	public void write(CompressingDataOutputStream s) throws IOException {
		getDeclaringType().write(s);
		s.writeInt(getModifiers());
		s.writeUTF(getName());
		UnresolvedType.writeArray(getParameterTypes(), s);
		pointcut.write(s);
	}

	public static ResolvedPointcutDefinition read(VersionedDataInputStream s, ISourceContext context) throws IOException {
		ResolvedPointcutDefinition rpd = new ResolvedPointcutDefinition(UnresolvedType.read(s), s.readInt(), s.readUTF(),
				UnresolvedType.readArray(s), Pointcut.read(s, context));
		rpd.setSourceContext(context); // whilst we have a source context, let's remember it
		return rpd;
	}

	@Override
	public String toString() {
		StringBuilder buf = new StringBuilder();
		buf.append("pointcut ");
		buf.append((getDeclaringType() == null ? "" : getDeclaringType().getName()));
		buf.append(".");
		buf.append(getName());
		buf.append("(");
		for (int i = 0; i < getParameterTypes().length; i++) {
			if (i > 0) {
				buf.append(", ");
			}
			buf.append(getParameterTypes()[i].toString());
		}
		buf.append(")");
		// buf.append(pointcut);

		return buf.toString();
	}

	public Pointcut getPointcut() {
		return pointcut;
	}

	@Override
	public boolean isAjSynthetic() {
		return true;
	}

	/**
	 * Called when asking a parameterized super-aspect for its pointcuts.
	 */
	@Override
	public ResolvedMemberImpl parameterizedWith(UnresolvedType[] typeParameters, ResolvedType newDeclaringType,
			boolean isParameterized) {
		TypeVariable[] typeVariables = getDeclaringType().resolve(newDeclaringType.getWorld()).getTypeVariables();
		if (isParameterized && (typeVariables.length != typeParameters.length)) {
			throw new IllegalStateException("Wrong number of type parameters supplied");
		}
		Map typeMap = new HashMap<>();
		boolean typeParametersSupplied = typeParameters != null && typeParameters.length > 0;
		if (typeVariables != null) {
			// If no 'replacements' were supplied in the typeParameters array then collapse
			// type variables to their first bound.
			for (int i = 0; i < typeVariables.length; i++) {
				UnresolvedType ut = (!typeParametersSupplied ? typeVariables[i].getFirstBound() : typeParameters[i]);
				typeMap.put(typeVariables[i].getName(), ut);
			}
		}
		UnresolvedType parameterizedReturnType = parameterize(getGenericReturnType(), typeMap, isParameterized,
				newDeclaringType.getWorld());
		UnresolvedType[] parameterizedParameterTypes = new UnresolvedType[getGenericParameterTypes().length];
		for (int i = 0; i < parameterizedParameterTypes.length; i++) {
			parameterizedParameterTypes[i] = parameterize(getGenericParameterTypes()[i], typeMap, isParameterized,
					newDeclaringType.getWorld());
		}
		ResolvedPointcutDefinition ret = new ResolvedPointcutDefinition(newDeclaringType, getModifiers(), getName(),
				parameterizedParameterTypes, parameterizedReturnType, pointcut.parameterizeWith(typeMap,
						newDeclaringType.getWorld()));
		ret.setTypeVariables(getTypeVariables());
		ret.setSourceContext(getSourceContext());
		ret.setPosition(getStart(), getEnd());
		ret.setParameterNames(getParameterNames());
		return ret;
		// return this;
	}

	// for testing
	public static final ResolvedPointcutDefinition DUMMY = new ResolvedPointcutDefinition(UnresolvedType.OBJECT, 0, "missing",
			UnresolvedType.NONE, Pointcut.makeMatchesNothing(Pointcut.RESOLVED));

	public static final ResolvedPointcutDefinition[] NO_POINTCUTS = new ResolvedPointcutDefinition[] {};

	public void setPointcut(Pointcut pointcut) {
		this.pointcut = pointcut;
	}

}