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

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Here is the source code for org.aspectj.weaver.patterns.OrPointcut.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.VersionedDataInputStream;
import org.aspectj.weaver.World;
import org.aspectj.weaver.ast.Test;
import org.aspectj.weaver.UnresolvedType;

public class OrPointcut extends Pointcut {
    Pointcut left, right;
    private int couldMatchKinds;

    public OrPointcut(Pointcut left, Pointcut right) {
        super();
        this.left = left;
        this.right = right;
        setLocation(left.getSourceContext(), left.getStart(), right.getEnd());
        this.pointcutKind = OR;
        this.couldMatchKinds = left.couldMatchKinds() | right.couldMatchKinds();
    }

    public int couldMatchKinds() {
        return couldMatchKinds;
    }

    public FuzzyBoolean fastMatch(FastMatchInfo type) {
        FuzzyBoolean leftMatch = left.fastMatch(type);
        if (leftMatch.alwaysTrue()) {
            return leftMatch;
        }
        return leftMatch.or(right.fastMatch(type));
    }

    protected FuzzyBoolean matchInternal(Shadow shadow) {
        FuzzyBoolean leftMatch = left.match(shadow);
        if (leftMatch.alwaysTrue()) {
            return leftMatch;
        }
        return leftMatch.or(right.match(shadow));
    }

    public String toString() {
        return "(" + left.toString() + " || " + right.toString() + ")";
    }

    public boolean equals(Object other) {
        if (!(other instanceof OrPointcut)) {
            return false;
        }
        OrPointcut o = (OrPointcut) other;
        return o.left.equals(left) && o.right.equals(right);
    }

    public int hashCode() {
        int result = 31;
        result = 37 * result + left.hashCode();
        result = 37 * result + right.hashCode();
        return result;
    }

    /**
     * @see org.aspectj.weaver.patterns.Pointcut#resolveBindings(IScope, Bindings)
     */
    public void resolveBindings(IScope scope, Bindings bindings) {
        Bindings old = bindings == null ? null : bindings.copy();

        left.resolveBindings(scope, bindings);
        right.resolveBindings(scope, old);
        if (bindings != null) {
            bindings.checkEquals(old, scope);
        }

    }

    public void write(CompressingDataOutputStream s) throws IOException {
        s.writeByte(Pointcut.OR);
        left.write(s);
        right.write(s);
        writeLocation(s);
    }

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

    }

    protected Test findResidueInternal(Shadow shadow, ExposedState state) {
        return Test.makeOr(left.findResidue(shadow, state), right.findResidue(shadow, state));
    }

    public Pointcut concretize1(ResolvedType inAspect, ResolvedType declaringType, IntMap bindings) {
        Pointcut ret = new OrPointcut(left.concretize(inAspect, declaringType, bindings),
                right.concretize(inAspect, declaringType, bindings));
        ret.copyLocationFrom(this);
        return ret;
    }

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

    public Pointcut getLeft() {
        return left;
    }

    public Pointcut getRight() {
        return right;
    }

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

    public Object traverse(PatternNodeVisitor visitor, Object data) {
        Object ret = accept(visitor, data);
        left.traverse(visitor, ret);
        right.traverse(visitor, ret);
        return ret;
    }
}