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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) 2005 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:
 *   Alexandre Vasseur         initial implementation
 *   Adrian Colyer                refactoring for traversal and grouping by kind
 *******************************************************************************/
package org.aspectj.weaver.patterns;


/**
 * A Pointcut or TypePattern visitor
 *
 * @author Alexandre Vasseur (alex AT gnilux DOT com)
 */
public interface PatternNodeVisitor {

	// Annotation type patterns
	Object visit(AndAnnotationTypePattern node, Object data);
    Object visit(AnyAnnotationTypePattern node, Object data);
    Object visit(EllipsisAnnotationTypePattern node, Object data);
    Object visit(ExactAnnotationTypePattern node, Object data);
    Object visit(BindingAnnotationTypePattern node, Object data);
    Object visit(NotAnnotationTypePattern node, Object data);
    Object visit(OrAnnotationTypePattern node, Object data);
    Object visit(WildAnnotationTypePattern node, Object data);
    Object visit(AnnotationPatternList node, Object data);

    // Regular type patterns
    Object visit(AndTypePattern node, Object data);
    Object visit(AnyTypePattern node, Object data);
    Object visit(AnyWithAnnotationTypePattern node, Object data);
    Object visit(EllipsisTypePattern node, Object data);
    Object visit(ExactTypePattern node, Object data);
    Object visit(BindingTypePattern node, Object data);
    Object visit(NotTypePattern node, Object data);
    Object visit(NoTypePattern node, Object data);
    Object visit(OrTypePattern node, Object data);
    Object visit(WildTypePattern node, Object data);
    Object visit(TypePatternList node, Object data);
    Object visit(HasMemberTypePattern node, Object data);
    Object visit(TypeCategoryTypePattern node, Object data);

    // Pointcuts
	Object visit(AndPointcut node, Object data);
    Object visit(CflowPointcut node, Object data);
    Object visit(ConcreteCflowPointcut node, Object data);
    Object visit(HandlerPointcut node, Object data);
    Object visit(IfPointcut node, Object data);
    Object visit(KindedPointcut node, Object data);
    Object visit(Pointcut.MatchesNothingPointcut node, Object data);
    Object visit(AnnotationPointcut node, Object data);
    Object visit(ArgsAnnotationPointcut node, Object data);
    Object visit(ArgsPointcut node, Object data);
    Object visit(ThisOrTargetAnnotationPointcut node, Object data);
    Object visit(ThisOrTargetPointcut node, Object data);
    Object visit(WithinAnnotationPointcut node, Object data);
    Object visit(WithinCodeAnnotationPointcut node, Object data);
    Object visit(NotPointcut node, Object data);
    Object visit(OrPointcut node, Object data);
    Object visit(ReferencePointcut node, Object data);
    Object visit(WithinPointcut node, Object data);
    Object visit(WithincodePointcut node, Object data);

	// Per-clauses
    Object visit(PerCflow node, Object data);
    Object visit(PerFromSuper node, Object data);
    Object visit(PerObject node, Object data);
    Object visit(PerSingleton node, Object data);
    Object visit(PerTypeWithin node, Object data);


	// Declares
    Object visit(DeclareAnnotation node, Object data);
    Object visit(DeclareErrorOrWarning node, Object data);
    Object visit(DeclareParents node, Object data);
    Object visit(DeclarePrecedence node, Object data);
    Object visit(DeclareSoft node, Object data);

	// Miscellaneous patterns
    Object visit(ModifiersPattern node, Object data);
    Object visit(NamePattern node, Object data);
    Object visit(SignaturePattern node, Object data);
    Object visit(ThrowsPattern node, Object data);
	Object visit(TypeVariablePattern node, Object data);
	Object visit(TypeVariablePatternList node,Object data);

	// Catch-all
    Object visit(PatternNode node, Object data);

}