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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.patterns;


public final class BasicToken implements IToken {
	private String value;
	private boolean isIdentifier;
	private String literalKind;

	private int start;
	private int end;

	public static BasicToken makeOperator(String value, int start, int end) {
		return new BasicToken(value.intern(), false, null, start, end);
	}

	public static BasicToken makeIdentifier(String value, int start, int end) {
		return new BasicToken(value, true, null, start, end);
	}

	public static BasicToken makeLiteral(String value, String kind, int start, int end) {
		return new BasicToken(value, false, kind.intern(), start, end);
	}


	private BasicToken(String value, boolean isIdentifier, String literalKind, int start, int end) {
		this.value = value;
		this.isIdentifier = isIdentifier;
		this.literalKind = literalKind;
		this.start = start;
		this.end = end;
	}

	public int getStart() { return start; }
	public int getEnd() { return end; }
	public String getFileName() { return "unknown"; }

	public String getString() {
		return value;
	}

	public boolean isIdentifier() {
		return isIdentifier;
	}

	public Pointcut maybeGetParsedPointcut() {
		return null;
	}



	public String toString() {
		String s;
		if (isIdentifier) s = value;
		else s = "'" + value + "'";

		return s + "@" + start + ":" + end;
	}
	public String getLiteralKind() {
		return literalKind;
	}

}