org.aspectj.weaver.patterns.NotPointcut.java Source code

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Here is the source code for org.aspectj.weaver.patterns.NotPointcut.java

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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 v1.0 
 * which accompanies this distribution and is available at 
 * http://www.eclipse.org/legal/epl-v10.html 
 *  
 * Contributors: 
 *     PARC     initial implementation 
 * ******************************************************************/

package org.aspectj.weaver.patterns;

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

import org.aspectj.util.FuzzyBoolean;
import org.aspectj.weaver.CompressingDataOutputStream;
import org.aspectj.weaver.ISourceContext;
import org.aspectj.weaver.IntMap;
import org.aspectj.weaver.ResolvedType;
import org.aspectj.weaver.Shadow;
import org.aspectj.weaver.UnresolvedType;
import org.aspectj.weaver.VersionedDataInputStream;
import org.aspectj.weaver.World;
import org.aspectj.weaver.ast.Test;

public class NotPointcut extends Pointcut {
    private Pointcut body;

    public NotPointcut(Pointcut negated) {
        super();
        this.body = negated;
        this.pointcutKind = NOT;
        setLocation(negated.getSourceContext(), negated.getStart(), negated.getEnd()); // should that be at least start-1?
    }

    public NotPointcut(Pointcut pointcut, int startPos) {
        this(pointcut);
        setLocation(pointcut.getSourceContext(), startPos, pointcut.getEnd());
    }

    @Override
    public int couldMatchKinds() {
        return Shadow.ALL_SHADOW_KINDS_BITS;
    }

    public Pointcut getNegatedPointcut() {
        return body;
    }

    @Override
    public FuzzyBoolean fastMatch(FastMatchInfo type) {
        return body.fastMatch(type).not();
    }

    @Override
    protected FuzzyBoolean matchInternal(Shadow shadow) {
        return body.match(shadow).not();
    }

    @Override
    public String toString() {
        return "!" + body.toString();

    }

    @Override
    public boolean equals(Object other) {
        if (!(other instanceof NotPointcut)) {
            return false;
        }
        NotPointcut o = (NotPointcut) other;
        return o.body.equals(body);
    }

    @Override
    public int hashCode() {
        return 37 * 23 + body.hashCode();
    }

    @Override
    public void resolveBindings(IScope scope, Bindings bindings) {
        // Bindings old = bindings.copy();

        // Bindings newBindings = new Bindings(bindings.size());

        body.resolveBindings(scope, null);

        // newBindings.checkEmpty(scope, "negation does not allow binding");
        // bindings.checkEquals(old, scope);

    }

    @Override
    public void write(CompressingDataOutputStream s) throws IOException {
        s.writeByte(Pointcut.NOT);
        body.write(s);
        writeLocation(s);
    }

    public static Pointcut read(VersionedDataInputStream s, ISourceContext context) throws IOException {
        NotPointcut ret = new NotPointcut(Pointcut.read(s, context));
        ret.readLocation(context, s);
        return ret;
    }

    @Override
    protected Test findResidueInternal(Shadow shadow, ExposedState state) {
        return Test.makeNot(body.findResidue(shadow, state));
    }

    @Override
    public Pointcut concretize1(ResolvedType inAspect, ResolvedType declaringType, IntMap bindings) {
        Pointcut ret = new NotPointcut(body.concretize(inAspect, declaringType, bindings));
        ret.copyLocationFrom(this);
        return ret;
    }

    @Override
    public Pointcut parameterizeWith(Map<String, UnresolvedType> typeVariableMap, World w) {
        Pointcut ret = new NotPointcut(body.parameterizeWith(typeVariableMap, w));
        ret.copyLocationFrom(this);
        return ret;
    }

    @Override
    public Object accept(PatternNodeVisitor visitor, Object data) {
        return visitor.visit(this, data);
    }

    @Override
    public Object traverse(PatternNodeVisitor visitor, Object data) {
        Object ret = accept(visitor, data);
        this.body.traverse(visitor, ret);
        return ret;
    }

}