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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during
compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based
@AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step.
This library is a superset of AspectJ weaver and hence also of AspectJ runtime.
/* *******************************************************************
* 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:
* Adrian Colyer Initial implementation
* ******************************************************************/
package org.aspectj.weaver.reflect;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import org.aspectj.bridge.ISourceLocation;
import org.aspectj.weaver.Member;
import org.aspectj.weaver.ResolvedMember;
import org.aspectj.weaver.ResolvedType;
import org.aspectj.weaver.Shadow;
import org.aspectj.weaver.UnresolvedType;
import org.aspectj.weaver.World;
import org.aspectj.weaver.ast.Var;
import org.aspectj.weaver.tools.MatchingContext;
/**
* @author colyer
*
*/
public class ReflectionShadow extends Shadow {
private final World world;
private final ResolvedType enclosingType;
private final ResolvedMember enclosingMember;
private final MatchingContext matchContext;
private Var thisVar = null;
private Var targetVar = null;
private Var[] argsVars = null;
private Var atThisVar = null;
private Var atTargetVar = null;
private Map atArgsVars = new HashMap<>();
private Map withinAnnotationVar = new HashMap<>();
private Map withinCodeAnnotationVar = new HashMap<>();
private Map annotationVar = new HashMap<>();
private AnnotationFinder annotationFinder;
public static Shadow makeExecutionShadow(World inWorld, java.lang.reflect.Member forMethod, MatchingContext withContext) {
Kind kind = (forMethod instanceof Method) ? Shadow.MethodExecution : Shadow.ConstructorExecution;
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createResolvedMember(forMethod, inWorld);
ResolvedType enclosingType = signature.getDeclaringType().resolve(inWorld);
return new ReflectionShadow(inWorld, kind, signature, null, enclosingType, null, withContext);
}
public static Shadow makeAdviceExecutionShadow(World inWorld, java.lang.reflect.Method forMethod, MatchingContext withContext) {
Kind kind = Shadow.AdviceExecution;
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createResolvedAdviceMember(forMethod, inWorld);
ResolvedType enclosingType = signature.getDeclaringType().resolve(inWorld);
return new ReflectionShadow(inWorld, kind, signature, null, enclosingType, null, withContext);
}
public static Shadow makeCallShadow(World inWorld, java.lang.reflect.Member aMember, java.lang.reflect.Member withinCode,
MatchingContext withContext) {
Shadow enclosingShadow = makeExecutionShadow(inWorld, withinCode, withContext);
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createResolvedMember(aMember, inWorld);
ResolvedMember enclosingMember = ReflectionBasedReferenceTypeDelegateFactory.createResolvedMember(withinCode, inWorld);
ResolvedType enclosingType = enclosingMember.getDeclaringType().resolve(inWorld);
Kind kind = aMember instanceof Method ? Shadow.MethodCall : Shadow.ConstructorCall;
return new ReflectionShadow(inWorld, kind, signature, enclosingShadow, enclosingType, enclosingMember, withContext);
}
public static Shadow makeCallShadow(World inWorld, java.lang.reflect.Member aMember, Class thisClass,
MatchingContext withContext) {
Shadow enclosingShadow = makeStaticInitializationShadow(inWorld, thisClass, withContext);
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createResolvedMember(aMember, inWorld);
ResolvedMember enclosingMember = ReflectionBasedReferenceTypeDelegateFactory.createStaticInitMember(thisClass, inWorld);
ResolvedType enclosingType = enclosingMember.getDeclaringType().resolve(inWorld);
Kind kind = aMember instanceof Method ? Shadow.MethodCall : Shadow.ConstructorCall;
return new ReflectionShadow(inWorld, kind, signature, enclosingShadow, enclosingType, enclosingMember, withContext);
}
public static Shadow makeStaticInitializationShadow(World inWorld, Class forType, MatchingContext withContext) {
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createStaticInitMember(forType, inWorld);
ResolvedType enclosingType = signature.getDeclaringType().resolve(inWorld);
Kind kind = Shadow.StaticInitialization;
return new ReflectionShadow(inWorld, kind, signature, null, enclosingType, null, withContext);
}
public static Shadow makePreInitializationShadow(World inWorld, Constructor forConstructor, MatchingContext withContext) {
Kind kind = Shadow.PreInitialization;
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createResolvedMember(forConstructor, inWorld);
ResolvedType enclosingType = signature.getDeclaringType().resolve(inWorld);
return new ReflectionShadow(inWorld, kind, signature, null, enclosingType, null, withContext);
}
public static Shadow makeInitializationShadow(World inWorld, Constructor forConstructor, MatchingContext withContext) {
Kind kind = Shadow.Initialization;
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createResolvedMember(forConstructor, inWorld);
ResolvedType enclosingType = signature.getDeclaringType().resolve(inWorld);
return new ReflectionShadow(inWorld, kind, signature, null, enclosingType, null, withContext);
}
public static Shadow makeHandlerShadow(World inWorld, Class exceptionType, Class withinType, MatchingContext withContext) {
Kind kind = Shadow.ExceptionHandler;
Shadow enclosingShadow = makeStaticInitializationShadow(inWorld, withinType, withContext);
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createHandlerMember(exceptionType, withinType, inWorld);
ResolvedMember enclosingMember = ReflectionBasedReferenceTypeDelegateFactory.createStaticInitMember(withinType, inWorld);
ResolvedType enclosingType = enclosingMember.getDeclaringType().resolve(inWorld);
return new ReflectionShadow(inWorld, kind, signature, enclosingShadow, enclosingType, enclosingMember, withContext);
}
public static Shadow makeHandlerShadow(World inWorld, Class exceptionType, java.lang.reflect.Member withinCode,
MatchingContext withContext) {
Kind kind = Shadow.ExceptionHandler;
Shadow enclosingShadow = makeExecutionShadow(inWorld, withinCode, withContext);
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createHandlerMember(exceptionType,
withinCode.getDeclaringClass(), inWorld);
ResolvedMember enclosingMember = ReflectionBasedReferenceTypeDelegateFactory.createResolvedMember(withinCode, inWorld);
ResolvedType enclosingType = enclosingMember.getDeclaringType().resolve(inWorld);
return new ReflectionShadow(inWorld, kind, signature, enclosingShadow, enclosingType, enclosingMember, withContext);
}
public static Shadow makeFieldGetShadow(World inWorld, Field forField, Class callerType, MatchingContext withContext) {
Shadow enclosingShadow = makeStaticInitializationShadow(inWorld, callerType, withContext);
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createResolvedField(forField, inWorld);
ResolvedMember enclosingMember = ReflectionBasedReferenceTypeDelegateFactory.createStaticInitMember(callerType, inWorld);
ResolvedType enclosingType = enclosingMember.getDeclaringType().resolve(inWorld);
Kind kind = Shadow.FieldGet;
return new ReflectionShadow(inWorld, kind, signature, enclosingShadow, enclosingType, enclosingMember, withContext);
}
public static Shadow makeFieldGetShadow(World inWorld, Field forField, java.lang.reflect.Member inMember,
MatchingContext withContext) {
Shadow enclosingShadow = makeExecutionShadow(inWorld, inMember, withContext);
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createResolvedField(forField, inWorld);
ResolvedMember enclosingMember = ReflectionBasedReferenceTypeDelegateFactory.createResolvedMember(inMember, inWorld);
ResolvedType enclosingType = enclosingMember.getDeclaringType().resolve(inWorld);
Kind kind = Shadow.FieldGet;
return new ReflectionShadow(inWorld, kind, signature, enclosingShadow, enclosingType, enclosingMember, withContext);
}
public static Shadow makeFieldSetShadow(World inWorld, Field forField, Class callerType, MatchingContext withContext) {
Shadow enclosingShadow = makeStaticInitializationShadow(inWorld, callerType, withContext);
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createResolvedField(forField, inWorld);
ResolvedMember enclosingMember = ReflectionBasedReferenceTypeDelegateFactory.createStaticInitMember(callerType, inWorld);
ResolvedType enclosingType = enclosingMember.getDeclaringType().resolve(inWorld);
Kind kind = Shadow.FieldSet;
return new ReflectionShadow(inWorld, kind, signature, enclosingShadow, enclosingType, enclosingMember, withContext);
}
public static Shadow makeFieldSetShadow(World inWorld, Field forField, java.lang.reflect.Member inMember,
MatchingContext withContext) {
Shadow enclosingShadow = makeExecutionShadow(inWorld, inMember, withContext);
Member signature = ReflectionBasedReferenceTypeDelegateFactory.createResolvedField(forField, inWorld);
ResolvedMember enclosingMember = ReflectionBasedReferenceTypeDelegateFactory.createResolvedMember(inMember, inWorld);
ResolvedType enclosingType = enclosingMember.getDeclaringType().resolve(inWorld);
Kind kind = Shadow.FieldSet;
return new ReflectionShadow(inWorld, kind, signature, enclosingShadow, enclosingType, enclosingMember, withContext);
}
public ReflectionShadow(World world, Kind kind, Member signature, Shadow enclosingShadow, ResolvedType enclosingType,
ResolvedMember enclosingMember, MatchingContext withContext) {
super(kind, signature, enclosingShadow);
this.world = world;
this.enclosingType = enclosingType;
this.enclosingMember = enclosingMember;
this.matchContext = withContext;
if (world instanceof IReflectionWorld) {
this.annotationFinder = ((IReflectionWorld) world).getAnnotationFinder();
}
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getIWorld()
*/
public World getIWorld() {
return world;
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getThisVar()
*/
public Var getThisVar() {
if (thisVar == null && hasThis()) {
thisVar = ReflectionVar.createThisVar(getThisType().resolve(world), this.annotationFinder);
}
return thisVar;
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getTargetVar()
*/
public Var getTargetVar() {
if (targetVar == null && hasTarget()) {
targetVar = ReflectionVar.createTargetVar(getThisType().resolve(world), this.annotationFinder);
}
return targetVar;
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getEnclosingType()
*/
public UnresolvedType getEnclosingType() {
return this.enclosingType;
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getArgVar(int)
*/
public Var getArgVar(int i) {
if (argsVars == null) {
this.argsVars = new Var[this.getArgCount()];
for (int j = 0; j < this.argsVars.length; j++) {
this.argsVars[j] = ReflectionVar.createArgsVar(getArgType(j).resolve(world), j, this.annotationFinder);
}
}
if (i < argsVars.length) {
return argsVars[i];
} else {
return null;
}
}
public Var getThisJoinPointVar() {
return null;
}
public Var getThisJoinPointStaticPartVar() {
return null;
}
public Var getThisEnclosingJoinPointStaticPartVar() {
return null;
}
public Var getThisAspectInstanceVar(ResolvedType aspectType) {
return null;
}
public Var getKindedAnnotationVar(UnresolvedType forAnnotationType) {
ResolvedType annType = forAnnotationType.resolve(world);
if (annotationVar.get(annType) == null) {
Var v = ReflectionVar.createAtAnnotationVar(annType, this.annotationFinder);
annotationVar.put(annType, v);
}
return annotationVar.get(annType);
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getWithinAnnotationVar(org.aspectj.weaver.UnresolvedType)
*/
public Var getWithinAnnotationVar(UnresolvedType forAnnotationType) {
ResolvedType annType = forAnnotationType.resolve(world);
if (withinAnnotationVar.get(annType) == null) {
Var v = ReflectionVar.createWithinAnnotationVar(annType, this.annotationFinder);
withinAnnotationVar.put(annType, v);
}
return withinAnnotationVar.get(annType);
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getWithinCodeAnnotationVar(org.aspectj.weaver.UnresolvedType)
*/
public Var getWithinCodeAnnotationVar(UnresolvedType forAnnotationType) {
ResolvedType annType = forAnnotationType.resolve(world);
if (withinCodeAnnotationVar.get(annType) == null) {
Var v = ReflectionVar.createWithinCodeAnnotationVar(annType, this.annotationFinder);
withinCodeAnnotationVar.put(annType, v);
}
return withinCodeAnnotationVar.get(annType);
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getThisAnnotationVar(org.aspectj.weaver.UnresolvedType)
*/
public Var getThisAnnotationVar(UnresolvedType forAnnotationType) {
if (atThisVar == null) {
atThisVar = ReflectionVar.createThisAnnotationVar(forAnnotationType.resolve(world), this.annotationFinder);
}
return atThisVar;
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getTargetAnnotationVar(org.aspectj.weaver.UnresolvedType)
*/
public Var getTargetAnnotationVar(UnresolvedType forAnnotationType) {
if (atTargetVar == null) {
atTargetVar = ReflectionVar.createTargetAnnotationVar(forAnnotationType.resolve(world), this.annotationFinder);
}
return atTargetVar;
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getArgAnnotationVar(int, org.aspectj.weaver.UnresolvedType)
*/
public Var getArgAnnotationVar(int i, UnresolvedType forAnnotationType) {
ResolvedType annType = forAnnotationType.resolve(world);
if (atArgsVars.get(annType) == null) {
Var[] vars = new Var[getArgCount()];
atArgsVars.put(annType, vars);
}
Var[] vars = atArgsVars.get(annType);
if (i > (vars.length - 1))
return null;
if (vars[i] == null) {
vars[i] = ReflectionVar.createArgsAnnotationVar(annType, i, this.annotationFinder);
}
return vars[i];
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getEnclosingCodeSignature()
*/
public Member getEnclosingCodeSignature() {
// XXX this code is copied from BcelShadow with one minor change...
if (getKind().isEnclosingKind()) {
return getSignature();
} else if (getKind() == Shadow.PreInitialization) {
// PreInit doesn't enclose code but its signature
// is correctly the signature of the ctor.
return getSignature();
} else if (enclosingShadow == null) {
return this.enclosingMember;
} else {
return enclosingShadow.getSignature();
}
}
/*
* (non-Javadoc)
*
* @see org.aspectj.weaver.Shadow#getSourceLocation()
*/
public ISourceLocation getSourceLocation() {
return null;
}
public MatchingContext getMatchingContext() {
return this.matchContext;
}
}