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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;
import java.io.IOException;
import java.util.Map;
import org.aspectj.bridge.ISourceLocation;
import org.aspectj.bridge.MessageUtil;
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.WeaverMessages;
import org.aspectj.weaver.UnresolvedType;
import org.aspectj.weaver.World;
import org.aspectj.weaver.ast.Literal;
import org.aspectj.weaver.ast.Test;
public class WithinPointcut extends Pointcut {
private TypePattern typePattern;
public WithinPointcut(TypePattern type) {
this.typePattern = type;
this.pointcutKind = WITHIN;
}
public TypePattern getTypePattern() {
return typePattern;
}
private FuzzyBoolean isWithinType(ResolvedType type) {
while (type != null) {
if (typePattern.matchesStatically(type)) {
return FuzzyBoolean.YES;
}
type = type.getDeclaringType();
}
return FuzzyBoolean.NO;
}
public int couldMatchKinds() {
return Shadow.ALL_SHADOW_KINDS_BITS;
}
@Override
public Pointcut parameterizeWith(Map<String,UnresolvedType> typeVariableMap, World w) {
WithinPointcut ret = new WithinPointcut(this.typePattern.parameterizeWith(typeVariableMap, w));
ret.copyLocationFrom(this);
return ret;
}
public FuzzyBoolean fastMatch(FastMatchInfo info) {
if (typePattern.annotationPattern instanceof AnyAnnotationTypePattern) {
return isWithinType(info.getType());
}
return FuzzyBoolean.MAYBE;
// Possible alternative implementation that fast matches even annotation patterns: '@Foo *'
// typePattern.resolve(info.world);
// return isWithinType(info.getType());
}
protected FuzzyBoolean matchInternal(Shadow shadow) {
ResolvedType enclosingType = shadow.getIWorld().resolve(shadow.getEnclosingType(), true);
if (enclosingType.isMissing()) {
shadow.getIWorld().getLint().cantFindType.signal(new String[] { WeaverMessages.format(
WeaverMessages.CANT_FIND_TYPE_WITHINPCD, shadow.getEnclosingType().getName()) }, shadow.getSourceLocation(),
new ISourceLocation[] { getSourceLocation() });
}
typePattern.resolve(shadow.getIWorld());
return isWithinType(enclosingType);
}
public void write(CompressingDataOutputStream s) throws IOException {
s.writeByte(Pointcut.WITHIN);
typePattern.write(s);
writeLocation(s);
}
public static Pointcut read(VersionedDataInputStream s, ISourceContext context) throws IOException {
TypePattern type = TypePattern.read(s, context);
WithinPointcut ret = new WithinPointcut(type);
ret.readLocation(context, s);
return ret;
}
public void resolveBindings(IScope scope, Bindings bindings) {
typePattern = typePattern.resolveBindings(scope, bindings, false, false);
// look for parameterized type patterns which are not supported...
HasThisTypePatternTriedToSneakInSomeGenericOrParameterizedTypePatternMatchingStuffAnywhereVisitor visitor = new HasThisTypePatternTriedToSneakInSomeGenericOrParameterizedTypePatternMatchingStuffAnywhereVisitor();
typePattern.traverse(visitor, null);
if (visitor.wellHasItThen/* ? */()) {
scope.message(MessageUtil.error(WeaverMessages.format(WeaverMessages.WITHIN_PCD_DOESNT_SUPPORT_PARAMETERS),
getSourceLocation()));
}
}
public void postRead(ResolvedType enclosingType) {
typePattern.postRead(enclosingType);
}
public boolean couldEverMatchSameJoinPointsAs(WithinPointcut other) {
return typePattern.couldEverMatchSameTypesAs(other.typePattern);
}
public boolean equals(Object other) {
if (!(other instanceof WithinPointcut)) {
return false;
}
WithinPointcut o = (WithinPointcut) other;
return o.typePattern.equals(this.typePattern);
}
public int hashCode() {
return typePattern.hashCode();
}
public String toString() {
return "within(" + typePattern + ")";
}
protected Test findResidueInternal(Shadow shadow, ExposedState state) {
return match(shadow).alwaysTrue() ? Literal.TRUE : Literal.FALSE;
}
public Pointcut concretize1(ResolvedType inAspect, ResolvedType declaringType, IntMap bindings) {
Pointcut ret = new WithinPointcut(typePattern);
ret.copyLocationFrom(this);
return ret;
}
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);
if (this.typePattern != null)
this.typePattern.traverse(visitor, ret);
return ret;
}
}
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