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/* *******************************************************************
* Copyright (c) 2002-2010 Contributors
* 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
* ******************************************************************/
package org.aspectj.weaver.bcel;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.jar.Attributes;
import java.util.jar.Attributes.Name;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
import org.aspectj.apache.bcel.classfile.ClassParser;
import org.aspectj.apache.bcel.classfile.JavaClass;
import org.aspectj.asm.AsmManager;
import org.aspectj.asm.IProgramElement;
import org.aspectj.asm.internal.AspectJElementHierarchy;
import org.aspectj.bridge.IMessage;
import org.aspectj.bridge.ISourceLocation;
import org.aspectj.bridge.Message;
import org.aspectj.bridge.MessageUtil;
import org.aspectj.bridge.SourceLocation;
import org.aspectj.bridge.WeaveMessage;
import org.aspectj.bridge.context.CompilationAndWeavingContext;
import org.aspectj.bridge.context.ContextToken;
import org.aspectj.util.FileUtil;
import org.aspectj.util.FuzzyBoolean;
import org.aspectj.weaver.Advice;
import org.aspectj.weaver.AdviceKind;
import org.aspectj.weaver.AjAttribute.WeaverVersionInfo;
import org.aspectj.weaver.AnnotationAJ;
import org.aspectj.weaver.AnnotationOnTypeMunger;
import org.aspectj.weaver.BCException;
import org.aspectj.weaver.CompressingDataOutputStream;
import org.aspectj.weaver.ConcreteTypeMunger;
import org.aspectj.weaver.CrosscuttingMembersSet;
import org.aspectj.weaver.CustomMungerFactory;
import org.aspectj.weaver.IClassFileProvider;
import org.aspectj.weaver.IUnwovenClassFile;
import org.aspectj.weaver.IWeaveRequestor;
import org.aspectj.weaver.NewParentTypeMunger;
import org.aspectj.weaver.ReferenceType;
import org.aspectj.weaver.ReferenceTypeDelegate;
import org.aspectj.weaver.ResolvedType;
import org.aspectj.weaver.ResolvedTypeMunger;
import org.aspectj.weaver.Shadow;
import org.aspectj.weaver.ShadowMunger;
import org.aspectj.weaver.UnresolvedType;
import org.aspectj.weaver.WeaverMessages;
import org.aspectj.weaver.WeaverStateInfo;
import org.aspectj.weaver.World;
import org.aspectj.weaver.model.AsmRelationshipProvider;
import org.aspectj.weaver.patterns.AndPointcut;
import org.aspectj.weaver.patterns.BindingPattern;
import org.aspectj.weaver.patterns.BindingTypePattern;
import org.aspectj.weaver.patterns.ConcreteCflowPointcut;
import org.aspectj.weaver.patterns.DeclareAnnotation;
import org.aspectj.weaver.patterns.DeclareParents;
import org.aspectj.weaver.patterns.DeclareTypeErrorOrWarning;
import org.aspectj.weaver.patterns.FastMatchInfo;
import org.aspectj.weaver.patterns.IfPointcut;
import org.aspectj.weaver.patterns.KindedPointcut;
import org.aspectj.weaver.patterns.NameBindingPointcut;
import org.aspectj.weaver.patterns.NotPointcut;
import org.aspectj.weaver.patterns.OrPointcut;
import org.aspectj.weaver.patterns.Pointcut;
import org.aspectj.weaver.patterns.PointcutRewriter;
import org.aspectj.weaver.patterns.WithinPointcut;
import org.aspectj.weaver.tools.Trace;
import org.aspectj.weaver.tools.TraceFactory;
/**
*
* @author PARC
* @author Andy Clement
* @author Alexandre Vasseur
*/
public class BcelWeaver {
public static final String CLOSURE_CLASS_PREFIX = "$Ajc";
public static final String SYNTHETIC_CLASS_POSTFIX = "$ajc";
private static Trace trace = TraceFactory.getTraceFactory().getTrace(BcelWeaver.class);
private transient final BcelWorld world;
private final CrosscuttingMembersSet xcutSet;
private boolean inReweavableMode = false;
private transient List addedClasses = new ArrayList();
private transient List deletedTypenames = new ArrayList();
// These four are setup by prepareForWeave
private transient List shadowMungerList = null;
private transient List typeMungerList = null;
private transient List lateTypeMungerList = null;
private transient List declareParentsList = null;
private Manifest manifest = null;
private boolean needToReweaveWorld = false;
private boolean isBatchWeave = true;
private ZipOutputStream zipOutputStream;
private CustomMungerFactory customMungerFactory;
public BcelWeaver(BcelWorld world) {
super();
if (trace.isTraceEnabled()) {
trace.enter("", this, world);
}
this.world = world;
this.xcutSet = world.getCrosscuttingMembersSet();
if (trace.isTraceEnabled()) {
trace.exit("");
}
}
/**
* Add the given aspect to the weaver. The type is resolved to support DOT for static inner classes as well as DOLLAR
*
* @param aspectName
* @return aspect
*/
public ResolvedType addLibraryAspect(String aspectName) {
if (trace.isTraceEnabled()) {
trace.enter("addLibraryAspect", this, aspectName);
}
// 1 - resolve as is
UnresolvedType unresolvedT = UnresolvedType.forName(aspectName);
unresolvedT.setNeedsModifiableDelegate(true);
ResolvedType type = world.resolve(unresolvedT, true);
if (type.isMissing()) {
// fallback on inner class lookup mechanism
String fixedName = aspectName;
int hasDot = fixedName.lastIndexOf('.');
while (hasDot > 0) {
// System.out.println("BcelWeaver.addLibraryAspect " + fixedName);
char[] fixedNameChars = fixedName.toCharArray();
fixedNameChars[hasDot] = '$';
fixedName = new String(fixedNameChars);
hasDot = fixedName.lastIndexOf('.');
UnresolvedType ut = UnresolvedType.forName(fixedName);
ut.setNeedsModifiableDelegate(true);
type = world.resolve(ut, true);
if (!type.isMissing()) {
break;
}
}
}
// System.out.println("type: " + type + " for " + aspectName);
if (type.isAspect()) {
// Bug 119657 ensure we use the unwoven aspect
WeaverStateInfo wsi = type.getWeaverState();
if (wsi != null && wsi.isReweavable()) {
BcelObjectType classType = getClassType(type.getName());
JavaClass wovenJavaClass = classType.getJavaClass();
byte[] bytes = wsi.getUnwovenClassFileData(wovenJavaClass.getBytes());
JavaClass unwovenJavaClass = Utility.makeJavaClass(wovenJavaClass.getFileName(), bytes);
world.storeClass(unwovenJavaClass);
classType.setJavaClass(unwovenJavaClass, true);
// classType.setJavaClass(Utility.makeJavaClass(classType.
// getJavaClass().getFileName(),
// wsi.getUnwovenClassFileData(classType.getJavaClass().getBytes(
// ))));
}
// TODO AV - happens to reach that a lot of time: for each type
// flagged reweavable X for each aspect in the weaverstate
// => mainly for nothing for LTW - pbly for something in incremental
// build...
xcutSet.addOrReplaceAspect(type);
if (trace.isTraceEnabled()) {
trace.exit("addLibraryAspect", type);
}
if (type.getSuperclass().isAspect()) {
// If the supertype includes ITDs and the user has not included
// that aspect in the aop.xml, they will
// not get picked up, which can give unusual behaviour! See bug
// 223094
// This change causes us to pick up the super aspect regardless
// of what was said in the aop.xml - giving
// predictable behaviour. If the user also supplied it, there
// will be no problem other than the second
// addition overriding the first
addLibraryAspect(type.getSuperclass().getName());
}
return type;
} else {
if (type.isMissing()) {
// May not be found if not visible to the classloader that can see the aop.xml during LTW
IMessage message = new Message("The specified aspect '"+aspectName+"' cannot be found", null, true);
world.getMessageHandler().handleMessage(message);
} else {
IMessage message = new Message("Cannot register '"+aspectName+"' because the type found with that name is not an aspect", null, true);
world.getMessageHandler().handleMessage(message);
}
return null;
}
}
/**
*
* @param inFile directory containing classes or zip/jar class archive
*/
public void addLibraryJarFile(File inFile) throws IOException {
List addedAspects = null;
if (inFile.isDirectory()) {
addedAspects = addAspectsFromDirectory(inFile);
} else {
addedAspects = addAspectsFromJarFile(inFile);
}
for (ResolvedType addedAspect : addedAspects) {
xcutSet.addOrReplaceAspect(addedAspect);
}
}
private List addAspectsFromJarFile(File inFile) throws FileNotFoundException, IOException {
ZipInputStream inStream = new ZipInputStream(new FileInputStream(inFile)); // ??? buffered
List addedAspects = new ArrayList();
try {
while (true) {
ZipEntry entry = inStream.getNextEntry();
if (entry == null) {
break;
}
if (entry.isDirectory() || !entry.getName().endsWith(".class")) {
continue;
}
// FIXME ASC performance? of this alternative soln.
int size = (int) entry.getSize();
ClassParser parser = new ClassParser(new ByteArrayInputStream(FileUtil.readAsByteArray(inStream)), entry.getName());
JavaClass jc = parser.parse();
inStream.closeEntry();
ResolvedType type = world.addSourceObjectType(jc, false).getResolvedTypeX();
type.setBinaryPath(inFile.getAbsolutePath());
if (type.isAspect()) {
addedAspects.add(type);
} else {
world.demote(type);
}
}
} finally {
inStream.close();
}
return addedAspects;
}
/**
* Look for .class files that represent aspects in the supplied directory - return the list of accumulated aspects.
*
* @param directory the directory in which to look for Aspect .class files
* @return the list of discovered aspects
* @throws FileNotFoundException
* @throws IOException
*/
private List addAspectsFromDirectory(File directory) throws FileNotFoundException, IOException {
List addedAspects = new ArrayList();
File[] classFiles = FileUtil.listFiles(directory, new FileFilter() {
public boolean accept(File pathname) {
return pathname.getName().endsWith(".class");
}
});
for (File classFile : classFiles) {
FileInputStream fis = new FileInputStream(classFile);
byte[] classBytes = FileUtil.readAsByteArray(fis);
ResolvedType aspectType = isAspect(classBytes, classFile.getAbsolutePath(), directory);
if (aspectType != null) {
addedAspects.add(aspectType);
}
fis.close();
}
return addedAspects;
}
/**
* Determine if the supplied bytes represent an aspect, if they do then create a ResolvedType instance for the aspect and return
* it, otherwise return null
*
* @param classbytes the classbytes that might represent an aspect
* @param name the name of the class
* @param directory directory which contained the class file
* @return a ResolvedType if the classbytes represent an aspect, otherwise null
*/
private ResolvedType isAspect(byte[] classbytes, String name, File dir) throws IOException {
ClassParser parser = new ClassParser(new ByteArrayInputStream(classbytes), name);
JavaClass jc = parser.parse();
ResolvedType type = world.addSourceObjectType(jc, false).getResolvedTypeX();
String typeName = type.getName().replace('.', File.separatorChar);
int end = name.lastIndexOf(typeName + ".class");
String binaryPath = null;
// if end is -1 then something weird happened, the class file is not in
// the correct place, something like
// bin/A.class when the declaration for A specifies it is in a package.
if (end == -1) {
binaryPath = dir.getAbsolutePath();
} else {
binaryPath = name.substring(0, end - 1);
}
type.setBinaryPath(binaryPath);
if (type.isAspect()) {
return type;
} else {
// immediately demote the type we just added since it will have
// have been stuffed into the permanent map (assumed to be
// an aspect)
world.demote(type);
return null;
}
}
// // The ANT copy task should be used to copy resources across.
// private final static boolean
// CopyResourcesFromInpathDirectoriesToOutput=false;
/**
* Add any .class files in the directory to the outdir. Anything other than .class files in the directory (or its
* subdirectories) are considered resources and are also copied.
*
*/
public List addDirectoryContents(File inFile, File outDir) throws IOException {
List addedClassFiles = new ArrayList();
// Get a list of all files (i.e. everything that isnt a directory)
File[] files = FileUtil.listFiles(inFile, new FileFilter() {
public boolean accept(File f) {
boolean accept = !f.isDirectory();
return accept;
}
});
// For each file, add it either as a real .class file or as a resource
for (int i = 0; i < files.length; i++) {
addedClassFiles.add(addClassFile(files[i], inFile, outDir));
}
return addedClassFiles;
}
/**
* Adds all class files in the jar
*/
public List addJarFile(File inFile, File outDir, boolean canBeDirectory) {
// System.err.println("? addJarFile(" + inFile + ", " + outDir + ")");
List addedClassFiles = new ArrayList();
needToReweaveWorld = true;
JarFile inJar = null;
try {
// Is this a directory we are looking at?
if (inFile.isDirectory() && canBeDirectory) {
addedClassFiles.addAll(addDirectoryContents(inFile, outDir));
} else {
inJar = new JarFile(inFile);
try {
addManifest(inJar.getManifest());
Enumeration entries = inJar.entries();
while (entries.hasMoreElements()) {
JarEntry entry = (JarEntry) entries.nextElement();
InputStream inStream = inJar.getInputStream(entry);
byte[] bytes = FileUtil.readAsByteArray(inStream);
String filename = entry.getName();
// System.out.println("? addJarFile() filename='" + filename
// + "'");
UnwovenClassFile classFile = new UnwovenClassFile(new File(outDir, filename).getAbsolutePath(), bytes);
if (filename.endsWith(".class")) {
ReferenceType type = this.addClassFile(classFile, false);
StringBuffer sb = new StringBuffer();
sb.append(inFile.getAbsolutePath());
sb.append("!");
sb.append(entry.getName());
type.setBinaryPath(sb.toString());
addedClassFiles.add(classFile);
}
// else if (!entry.isDirectory()) {
//
// /* bug-44190 Copy meta-data */
// addResource(filename,classFile);
// }
inStream.close();
}
} finally {
inJar.close();
}
inJar.close();
}
} catch (FileNotFoundException ex) {
IMessage message = new Message("Could not find input jar file " + inFile.getPath() + ", ignoring", new SourceLocation(
inFile, 0), false);
world.getMessageHandler().handleMessage(message);
} catch (IOException ex) {
IMessage message = new Message("Could not read input jar file " + inFile.getPath() + "(" + ex.getMessage() + ")",
new SourceLocation(inFile, 0), true);
world.getMessageHandler().handleMessage(message);
} finally {
if (inJar != null) {
try {
inJar.close();
} catch (IOException ex) {
IMessage message = new Message("Could not close input jar file " + inFile.getPath() + "(" + ex.getMessage()
+ ")", new SourceLocation(inFile, 0), true);
world.getMessageHandler().handleMessage(message);
}
}
}
return addedClassFiles;
}
public boolean needToReweaveWorld() {
return needToReweaveWorld;
}
/**
* Should be addOrReplace
*/
public ReferenceType addClassFile(UnwovenClassFile classFile, boolean fromInpath) {
addedClasses.add(classFile);
ReferenceType type = world.addSourceObjectType(classFile.getJavaClass(), false).getResolvedTypeX();
if (fromInpath) {
type.setBinaryPath(classFile.getFilename());
}
return type;
}
public UnwovenClassFile addClassFile(File classFile, File inPathDir, File outDir) throws IOException {
FileInputStream fis = new FileInputStream(classFile);
byte[] bytes = FileUtil.readAsByteArray(fis);
// String relativePath = files[i].getPath();
// ASSERT:
// files[i].getAbsolutePath().startsWith(inFile.getAbsolutePath()
// or we are in trouble...
String filename = classFile.getAbsolutePath().substring(inPathDir.getAbsolutePath().length() + 1);
UnwovenClassFile ucf = new UnwovenClassFile(new File(outDir, filename).getAbsolutePath(), bytes);
if (filename.endsWith(".class")) {
// System.err.println(
// "BCELWeaver: processing class from input directory "+classFile);
StringBuffer sb = new StringBuffer();
sb.append(inPathDir.getAbsolutePath());
sb.append("!");
sb.append(filename);
ReferenceType type = this.addClassFile(ucf, false);
type.setBinaryPath(sb.toString());
}
fis.close();
return ucf;
}
public void deleteClassFile(String typename) {
deletedTypenames.add(typename);
world.deleteSourceObjectType(UnresolvedType.forName(typename));
}
// ---- weave preparation
public void setIsBatchWeave(boolean b) {
isBatchWeave = b;
}
public void prepareForWeave() {
if (trace.isTraceEnabled()) {
trace.enter("prepareForWeave", this);
}
needToReweaveWorld = xcutSet.hasChangedSinceLastReset();
// update mungers
for (Iterator i = addedClasses.iterator(); i.hasNext();) {
UnwovenClassFile jc = i.next();
String name = jc.getClassName();
ResolvedType type = world.resolve(name);
// No overweaving guard. If you have one then when overweaving is on the
// addOrReplaceAspect will not be called when the aspect delegate changes from
// EclipseSourceType to BcelObjectType. This will mean the mungers
// are not picked up.
if (type.isAspect()) {
needToReweaveWorld |= xcutSet.addOrReplaceAspect(type);
}
}
for (Iterator i = deletedTypenames.iterator(); i.hasNext();) {
String name = i.next();
if (xcutSet.deleteAspect(UnresolvedType.forName(name))) {
needToReweaveWorld = true;
}
}
shadowMungerList = xcutSet.getShadowMungers();
// world.debug("shadow mungers=" + shadowMungerList);
rewritePointcuts(shadowMungerList);
// Sometimes an error occurs during rewriting pointcuts (for example, if
// ambiguous bindings
// are detected) - we ought to fail the prepare when this happens
// because continuing with
// inconsistent pointcuts could lead to problems
typeMungerList = xcutSet.getTypeMungers();
lateTypeMungerList = xcutSet.getLateTypeMungers();
declareParentsList = xcutSet.getDeclareParents();
addCustomMungers();
// The ordering here used to be based on a string compare on toString()
// for the two mungers -
// that breaks for the @AJ style where advice names aren't
// programmatically generated. So we
// have changed the sorting to be based on source location in the file -
// this is reliable, in
// the case of source locations missing, we assume they are 'sorted' -
// i.e. the order in
// which they were added to the collection is correct, this enables the
// @AJ stuff to work properly.
// When @AJ processing starts filling in source locations for mungers,
// this code may need
// a bit of alteration...
Collections.sort(shadowMungerList, new Comparator() {
public int compare(ShadowMunger sm1, ShadowMunger sm2) {
if (sm1.getSourceLocation() == null) {
return (sm2.getSourceLocation() == null ? 0 : 1);
}
if (sm2.getSourceLocation() == null) {
return -1;
}
return (sm2.getSourceLocation().getOffset() - sm1.getSourceLocation().getOffset());
}
});
if (inReweavableMode) {
world.showMessage(IMessage.INFO, WeaverMessages.format(WeaverMessages.REWEAVABLE_MODE), null, null);
}
if (trace.isTraceEnabled()) {
trace.exit("prepareForWeave");
}
}
private void addCustomMungers() {
if (customMungerFactory != null) {
for (Iterator i = addedClasses.iterator(); i.hasNext();) {
UnwovenClassFile jc = i.next();
String name = jc.getClassName();
ResolvedType type = world.resolve(name);
if (type.isAspect()) {
Collection shadowMungers = customMungerFactory.createCustomShadowMungers(type);
if (shadowMungers != null) {
shadowMungerList.addAll(shadowMungers);
}
Collection typeMungers = customMungerFactory.createCustomTypeMungers(type);
if (typeMungers != null) {
typeMungerList.addAll(typeMungers);
}
}
}
}
}
public void setCustomMungerFactory(CustomMungerFactory factory) {
customMungerFactory = factory;
}
/*
* Rewrite all of the pointcuts in the world into their most efficient form for subsequent matching. Also ensure that if
* pc1.equals(pc2) then pc1 == pc2 (for non-binding pcds) by making references all point to the same instance. Since pointcuts
* remember their match decision on the last shadow, this makes matching faster when many pointcuts share common elements, or
* even when one single pointcut has one common element (which can be a side-effect of DNF rewriting).
*/
private void rewritePointcuts(List shadowMungers) {
PointcutRewriter rewriter = new PointcutRewriter();
for (ShadowMunger munger : shadowMungers) {
Pointcut p = munger.getPointcut();
Pointcut newP = rewriter.rewrite(p);
// validateBindings now whilst we still have around the pointcut
// that resembles what the user actually wrote in their program
// text.
if (munger instanceof Advice) {
Advice advice = (Advice) munger;
if (advice.getSignature() != null) {
final int numFormals;
final String names[];
// If the advice is being concretized in a @AJ aspect *and*
// the advice was declared in
// an @AJ aspect (it could have been inherited from a code
// style aspect) then
// evaluate the alternative set of formals. pr125699
if ((advice.getConcreteAspect().isAnnotationStyleAspect() && advice.getDeclaringAspect() != null && advice
.getDeclaringAspect().resolve(world).isAnnotationStyleAspect())
|| advice.isAnnotationStyle()) {
numFormals = advice.getBaseParameterCount();
int numArgs = advice.getSignature().getParameterTypes().length;
if (numFormals > 0) {
names = advice.getSignature().getParameterNames(world);
validateBindings(newP, p, numArgs, names);
}
} else {
numFormals = advice.getBaseParameterCount();
if (numFormals > 0) {
names = advice.getBaseParameterNames(world);
validateBindings(newP, p, numFormals, names);
}
}
}
}
newP.m_ignoreUnboundBindingForNames = p.m_ignoreUnboundBindingForNames;
munger.setPointcut(newP);
}
// now that we have optimized individual pointcuts, optimize
// across the set of pointcuts....
// Use a map from key based on pc equality, to value based on
// pc identity.
Map pcMap = new HashMap();
for (ShadowMunger munger: shadowMungers) {
Pointcut p = munger.getPointcut();
Pointcut newP = shareEntriesFromMap(p, pcMap);
newP.m_ignoreUnboundBindingForNames = p.m_ignoreUnboundBindingForNames;
munger.setPointcut(newP);
}
}
private Pointcut shareEntriesFromMap(Pointcut p, Map pcMap) {
// some things cant be shared...
if (p instanceof NameBindingPointcut) {
return p;
}
if (p instanceof IfPointcut) {
return p;
}
if (p instanceof ConcreteCflowPointcut) {
return p;
}
if (p instanceof AndPointcut) {
AndPointcut apc = (AndPointcut) p;
Pointcut left = shareEntriesFromMap(apc.getLeft(), pcMap);
Pointcut right = shareEntriesFromMap(apc.getRight(), pcMap);
return new AndPointcut(left, right);
} else if (p instanceof OrPointcut) {
OrPointcut opc = (OrPointcut) p;
Pointcut left = shareEntriesFromMap(opc.getLeft(), pcMap);
Pointcut right = shareEntriesFromMap(opc.getRight(), pcMap);
return new OrPointcut(left, right);
} else if (p instanceof NotPointcut) {
NotPointcut npc = (NotPointcut) p;
Pointcut not = shareEntriesFromMap(npc.getNegatedPointcut(), pcMap);
return new NotPointcut(not);
} else {
// primitive pcd
if (pcMap.containsKey(p)) { // based on equality
return pcMap.get(p); // same instance (identity)
} else {
pcMap.put(p, p);
return p;
}
}
}
// userPointcut is the pointcut that the user wrote in the program text.
// dnfPointcut is the same pointcut rewritten in DNF
// numFormals is the number of formal parameters in the pointcut
// if numFormals > 0 then every branch of a disjunction must bind each
// formal once and only once.
// in addition, the left and right branches of a disjunction must hold on
// join point kinds in common.
private void validateBindings(Pointcut dnfPointcut, Pointcut userPointcut, int numFormals, String[] names) {
if (numFormals == 0) {
return; // nothing to check
}
if (dnfPointcut.couldMatchKinds() == Shadow.NO_SHADOW_KINDS_BITS) {
return; // cant have problems if you dont match!
}
if (dnfPointcut instanceof OrPointcut) {
OrPointcut orBasedDNFPointcut = (OrPointcut) dnfPointcut;
Pointcut[] leftBindings = new Pointcut[numFormals];
Pointcut[] rightBindings = new Pointcut[numFormals];
validateOrBranch(orBasedDNFPointcut, userPointcut, numFormals, names, leftBindings, rightBindings);
} else {
Pointcut[] bindings = new Pointcut[numFormals];
validateSingleBranch(dnfPointcut, userPointcut, numFormals, names, bindings);
}
}
private void validateOrBranch(OrPointcut pc, Pointcut userPointcut, int numFormals, String[] names, Pointcut[] leftBindings,
Pointcut[] rightBindings) {
Pointcut left = pc.getLeft();
Pointcut right = pc.getRight();
if (left instanceof OrPointcut) {
Pointcut[] newRightBindings = new Pointcut[numFormals];
validateOrBranch((OrPointcut) left, userPointcut, numFormals, names, leftBindings, newRightBindings);
} else {
if (left.couldMatchKinds() != Shadow.NO_SHADOW_KINDS_BITS) {
validateSingleBranch(left, userPointcut, numFormals, names, leftBindings);
}
}
if (right instanceof OrPointcut) {
Pointcut[] newLeftBindings = new Pointcut[numFormals];
validateOrBranch((OrPointcut) right, userPointcut, numFormals, names, newLeftBindings, rightBindings);
} else {
if (right.couldMatchKinds() != Shadow.NO_SHADOW_KINDS_BITS) {
validateSingleBranch(right, userPointcut, numFormals, names, rightBindings);
}
}
int kindsInCommon = left.couldMatchKinds() & right.couldMatchKinds();
if (kindsInCommon != Shadow.NO_SHADOW_KINDS_BITS && couldEverMatchSameJoinPoints(left, right)) {
// we know that every branch binds every formal, so there is no
// ambiguity if each branch binds it in exactly the same way...
List ambiguousNames = new ArrayList();
for (int i = 0; i < numFormals; i++) {
if (leftBindings[i] == null) {
if (rightBindings[i] != null) {
ambiguousNames.add(names[i]);
}
} else if (!leftBindings[i].equals(rightBindings[i])) {
ambiguousNames.add(names[i]);
}
}
if (!ambiguousNames.isEmpty()) {
raiseAmbiguityInDisjunctionError(userPointcut, ambiguousNames);
}
}
}
// pc is a pointcut that does not contain any disjunctions
// check that every formal is bound (negation doesn't count).
// we know that numFormals > 0 or else we would not be called
private void validateSingleBranch(Pointcut pc, Pointcut userPointcut, int numFormals, String[] names, Pointcut[] bindings) {
boolean[] foundFormals = new boolean[numFormals];
for (int i = 0; i < foundFormals.length; i++) {
foundFormals[i] = false;
}
validateSingleBranchRecursion(pc, userPointcut, foundFormals, names, bindings);
for (int i = 0; i < foundFormals.length; i++) {
if (!foundFormals[i]) {
boolean ignore = false;
// ATAJ soften the unbound error for implicit bindings like
// JoinPoint in @AJ style
for (int j = 0; j < userPointcut.m_ignoreUnboundBindingForNames.length; j++) {
if (names[i] != null && names[i].equals(userPointcut.m_ignoreUnboundBindingForNames[j])) {
ignore = true;
break;
}
}
if (!ignore) {
raiseUnboundFormalError(names[i], userPointcut);
}
}
}
}
// each formal must appear exactly once
private void validateSingleBranchRecursion(Pointcut pc, Pointcut userPointcut, boolean[] foundFormals, String[] names,
Pointcut[] bindings) {
if (pc instanceof NotPointcut) {
// nots can only appear at leaves in DNF
NotPointcut not = (NotPointcut) pc;
if (not.getNegatedPointcut() instanceof NameBindingPointcut) {
NameBindingPointcut nnbp = (NameBindingPointcut) not.getNegatedPointcut();
if (!nnbp.getBindingAnnotationTypePatterns().isEmpty() && !nnbp.getBindingTypePatterns().isEmpty()) {
raiseNegationBindingError(userPointcut);
}
}
} else if (pc instanceof AndPointcut) {
AndPointcut and = (AndPointcut) pc;
validateSingleBranchRecursion(and.getLeft(), userPointcut, foundFormals, names, bindings);
validateSingleBranchRecursion(and.getRight(), userPointcut, foundFormals, names, bindings);
} else if (pc instanceof NameBindingPointcut) {
List bindingTypePatterns = ((NameBindingPointcut) pc).getBindingTypePatterns();
for (BindingTypePattern bindingTypePattern: bindingTypePatterns) {
int index = bindingTypePattern.getFormalIndex();
bindings[index] = pc;
if (foundFormals[index]) {
raiseAmbiguousBindingError(names[index], userPointcut);
} else {
foundFormals[index] = true;
}
}
List bindingAnnotationTypePatterns = ((NameBindingPointcut) pc).getBindingAnnotationTypePatterns();
for (BindingPattern bindingAnnotationTypePattern: bindingAnnotationTypePatterns) {
int index = bindingAnnotationTypePattern.getFormalIndex();
bindings[index] = pc;
if (foundFormals[index]) {
raiseAmbiguousBindingError(names[index], userPointcut);
} else {
foundFormals[index] = true;
}
}
} else if (pc instanceof ConcreteCflowPointcut) {
ConcreteCflowPointcut cfp = (ConcreteCflowPointcut) pc;
int[] slots = cfp.getUsedFormalSlots();
for (int i = 0; i < slots.length; i++) {
bindings[slots[i]] = cfp;
if (foundFormals[slots[i]]) {
raiseAmbiguousBindingError(names[slots[i]], userPointcut);
} else {
foundFormals[slots[i]] = true;
}
}
}
}
// By returning false from this method, we are allowing binding of the same
// variable on either side of an or.
// Be conservative :- have to consider overriding, varargs, autoboxing,
// the effects of itds (on within for example), interfaces, the fact that
// join points can have multiple signatures and so on.
private boolean couldEverMatchSameJoinPoints(Pointcut left, Pointcut right) {
if (left instanceof OrPointcut) {
OrPointcut leftOrPointcut = (OrPointcut) left;
if (couldEverMatchSameJoinPoints(leftOrPointcut.getLeft(), right)) {
return true;
}
if (couldEverMatchSameJoinPoints(leftOrPointcut.getRight(), right)) {
return true;
}
return false;
}
if (right instanceof OrPointcut) {
OrPointcut rightOrPointcut = (OrPointcut) right;
if (couldEverMatchSameJoinPoints(left, rightOrPointcut.getLeft())) {
return true;
}
if (couldEverMatchSameJoinPoints(left, rightOrPointcut.getRight())) {
return true;
}
return false;
}
// look for withins
WithinPointcut leftWithin = (WithinPointcut) findFirstPointcutIn(left, WithinPointcut.class);
WithinPointcut rightWithin = (WithinPointcut) findFirstPointcutIn(right, WithinPointcut.class);
if ((leftWithin != null) && (rightWithin != null)) {
if (!leftWithin.couldEverMatchSameJoinPointsAs(rightWithin)) {
return false;
}
}
// look for kinded
KindedPointcut leftKind = (KindedPointcut) findFirstPointcutIn(left, KindedPointcut.class);
KindedPointcut rightKind = (KindedPointcut) findFirstPointcutIn(right, KindedPointcut.class);
if ((leftKind != null) && (rightKind != null)) {
if (!leftKind.couldEverMatchSameJoinPointsAs(rightKind)) {
return false;
}
}
return true;
}
private Pointcut findFirstPointcutIn(Pointcut toSearch, Class toLookFor) {
if (toSearch instanceof NotPointcut) {
return null;
}
if (toLookFor.isInstance(toSearch)) {
return toSearch;
}
if (toSearch instanceof AndPointcut) {
AndPointcut apc = (AndPointcut) toSearch;
Pointcut left = findFirstPointcutIn(apc.getLeft(), toLookFor);
if (left != null) {
return left;
}
return findFirstPointcutIn(apc.getRight(), toLookFor);
}
return null;
}
/**
* @param userPointcut
*/
private void raiseNegationBindingError(Pointcut userPointcut) {
world.showMessage(IMessage.ERROR, WeaverMessages.format(WeaverMessages.NEGATION_DOESNT_ALLOW_BINDING), userPointcut
.getSourceContext().makeSourceLocation(userPointcut), null);
}
private void raiseAmbiguousBindingError(String name, Pointcut pointcut) {
world.showMessage(IMessage.ERROR, WeaverMessages.format(WeaverMessages.AMBIGUOUS_BINDING, name), pointcut
.getSourceContext().makeSourceLocation(pointcut), null);
}
/**
* @param userPointcut
*/
private void raiseAmbiguityInDisjunctionError(Pointcut userPointcut, List names) {
StringBuffer formalNames = new StringBuffer(names.get(0).toString());
for (int i = 1; i < names.size(); i++) {
formalNames.append(", ");
formalNames.append(names.get(i));
}
world.showMessage(IMessage.ERROR, WeaverMessages.format(WeaverMessages.AMBIGUOUS_BINDING_IN_OR, formalNames), userPointcut
.getSourceContext().makeSourceLocation(userPointcut), null);
}
/**
* @param name
* @param userPointcut
*/
private void raiseUnboundFormalError(String name, Pointcut userPointcut) {
world.showMessage(IMessage.ERROR, WeaverMessages.format(WeaverMessages.UNBOUND_FORMAL, name),
userPointcut.getSourceLocation(), null);
}
public void addManifest(Manifest newManifest) {
// System.out.println("? addManifest() newManifest=" + newManifest);
if (manifest == null) {
manifest = newManifest;
}
}
public Manifest getManifest(boolean shouldCreate) {
if (manifest == null && shouldCreate) {
String WEAVER_MANIFEST_VERSION = "1.0";
Attributes.Name CREATED_BY = new Name("Created-By");
String WEAVER_CREATED_BY = "AspectJ Compiler";
manifest = new Manifest();
Attributes attributes = manifest.getMainAttributes();
attributes.put(Name.MANIFEST_VERSION, WEAVER_MANIFEST_VERSION);
attributes.put(CREATED_BY, WEAVER_CREATED_BY);
}
return manifest;
}
// ---- weaving
// FOR TESTING
public Collection weave(File file) throws IOException {
OutputStream os = FileUtil.makeOutputStream(file);
this.zipOutputStream = new ZipOutputStream(os);
prepareForWeave();
Collection c = weave(new IClassFileProvider() {
public boolean isApplyAtAspectJMungersOnly() {
return false;
}
public Iterator getClassFileIterator() {
return addedClasses.iterator();
}
public IWeaveRequestor getRequestor() {
return new IWeaveRequestor() {
public void acceptResult(IUnwovenClassFile result) {
try {
writeZipEntry(result.getFilename(), result.getBytes());
} catch (IOException ex) {
}
}
public void processingReweavableState() {
}
public void addingTypeMungers() {
}
public void weavingAspects() {
}
public void weavingClasses() {
}
public void weaveCompleted() {
}
};
}
});
// /* BUG 40943*/
// dumpResourcesToOutJar();
zipOutputStream.close(); // this flushes and closes the acutal file
return c;
}
private Set candidatesForRemoval = null;
// variation of "weave" that sources class files from an external source.
public Collection weave(IClassFileProvider input) throws IOException {
if (trace.isTraceEnabled()) {
trace.enter("weave", this, input);
}
ContextToken weaveToken = CompilationAndWeavingContext.enteringPhase(CompilationAndWeavingContext.WEAVING, "");
Collection wovenClassNames = new ArrayList();
IWeaveRequestor requestor = input.getRequestor();
if (world.getModel() != null && world.isMinimalModel()) {
candidatesForRemoval = new HashSet();
}
if (world.getModel() != null && !isBatchWeave) {
AsmManager manager = world.getModelAsAsmManager();
for (Iterator i = input.getClassFileIterator(); i.hasNext();) {
UnwovenClassFile classFile = i.next();
// remove all relationships where this file being woven is
// the target of the relationship
manager.removeRelationshipsTargettingThisType(classFile.getClassName());
}
}
// Go through the types and ensure any 'damaged' during compile time are
// repaired prior to weaving
for (Iterator i = input.getClassFileIterator(); i.hasNext();) {
UnwovenClassFile classFile = i.next();
String className = classFile.getClassName();
ResolvedType theType = world.resolve(className);
if (theType != null) {
theType.ensureConsistent();
}
}
// special case for AtAspectJMungerOnly - see #113587
if (input.isApplyAtAspectJMungersOnly()) {
ContextToken atAspectJMungersOnly = CompilationAndWeavingContext.enteringPhase(
CompilationAndWeavingContext.PROCESSING_ATASPECTJTYPE_MUNGERS_ONLY, "");
requestor.weavingAspects();
// ContextToken aspectToken =
CompilationAndWeavingContext.enteringPhase(CompilationAndWeavingContext.WEAVING_ASPECTS, "");
for (Iterator i = input.getClassFileIterator(); i.hasNext();) {
UnwovenClassFile classFile = i.next();
String className = classFile.getClassName();
ResolvedType theType = world.resolve(className);
if (theType.isAnnotationStyleAspect()) {
BcelObjectType classType = BcelWorld.getBcelObjectType(theType);
if (classType == null) {
throw new BCException("Can't find bcel delegate for " + className + " type=" + theType.getClass());
}
LazyClassGen clazz = classType.getLazyClassGen();
BcelPerClauseAspectAdder selfMunger = new BcelPerClauseAspectAdder(theType, theType.getPerClause().getKind());
selfMunger.forceMunge(clazz, true);
classType.finishedWith();
UnwovenClassFile[] newClasses = getClassFilesFor(clazz);
for (int news = 0; news < newClasses.length; news++) {
requestor.acceptResult(newClasses[news]);
}
wovenClassNames.add(classFile.getClassName());
}
}
requestor.weaveCompleted();
CompilationAndWeavingContext.leavingPhase(atAspectJMungersOnly);
return wovenClassNames;
}
requestor.processingReweavableState();
ContextToken reweaveToken = CompilationAndWeavingContext.enteringPhase(
CompilationAndWeavingContext.PROCESSING_REWEAVABLE_STATE, "");
prepareToProcessReweavableState();
// clear all state from files we'll be reweaving
for (Iterator i = input.getClassFileIterator(); i.hasNext();) {
UnwovenClassFile classFile = i.next();
String className = classFile.getClassName();
BcelObjectType classType = getClassType(className);
// null return from getClassType() means the delegate is an eclipse
// source type - so
// there *cant* be any reweavable state... (he bravely claimed...)
if (classType != null) {
ContextToken tok = CompilationAndWeavingContext.enteringPhase(
CompilationAndWeavingContext.PROCESSING_REWEAVABLE_STATE, className);
processReweavableStateIfPresent(className, classType);
CompilationAndWeavingContext.leavingPhase(tok);
}
}
CompilationAndWeavingContext.leavingPhase(reweaveToken);
ContextToken typeMungingToken = CompilationAndWeavingContext.enteringPhase(
CompilationAndWeavingContext.PROCESSING_TYPE_MUNGERS, "");
requestor.addingTypeMungers();
// We process type mungers in two groups, first mungers that change the
// type
// hierarchy, then 'normal' ITD type mungers.
// Process the types in a predictable order (rather than the order
// encountered).
// For class A, the order is superclasses of A then superinterfaces of A
// (and this mechanism is applied recursively)
List typesToProcess = new ArrayList();
for (Iterator iter = input.getClassFileIterator(); iter.hasNext();) {
UnwovenClassFile clf = iter.next();
typesToProcess.add(clf.getClassName());
}
while (typesToProcess.size() > 0) {
weaveParentsFor(typesToProcess, typesToProcess.get(0), null);
}
for (Iterator i = input.getClassFileIterator(); i.hasNext();) {
UnwovenClassFile classFile = i.next();
String className = classFile.getClassName();
addNormalTypeMungers(className);
}
CompilationAndWeavingContext.leavingPhase(typeMungingToken);
requestor.weavingAspects();
ContextToken aspectToken = CompilationAndWeavingContext.enteringPhase(CompilationAndWeavingContext.WEAVING_ASPECTS, "");
// first weave into aspects
for (Iterator i = input.getClassFileIterator(); i.hasNext();) {
UnwovenClassFile classFile = i.next();
String className = classFile.getClassName();
ResolvedType theType = world.resolve(className);
if (theType.isAspect()) {
BcelObjectType classType = BcelWorld.getBcelObjectType(theType);
if (classType == null) {
// Sometimes.. if the Bcel Delegate couldn't be found then a
// problem occurred at compile time - on
// a previous compiler run. In this case I assert the
// delegate will still be an EclipseSourceType
// and we can ignore the problem here (the original compile
// error will be reported again from
// the eclipse source type) - pr113531
ReferenceTypeDelegate theDelegate = ((ReferenceType) theType).getDelegate();
if (theDelegate.getClass().getName().endsWith("EclipseSourceType")) {
continue;
}
throw new BCException("Can't find bcel delegate for " + className + " type=" + theType.getClass());
}
weaveAndNotify(classFile, classType, requestor);
wovenClassNames.add(className);
}
}
CompilationAndWeavingContext.leavingPhase(aspectToken);
requestor.weavingClasses();
ContextToken classToken = CompilationAndWeavingContext.enteringPhase(CompilationAndWeavingContext.WEAVING_CLASSES, "");
// then weave into non-aspects
for (Iterator i = input.getClassFileIterator(); i.hasNext();) {
UnwovenClassFile classFile = i.next();
String className = classFile.getClassName();
ResolvedType theType = world.resolve(className);
if (!theType.isAspect()) {
BcelObjectType classType = BcelWorld.getBcelObjectType(theType);
if (classType == null) {
// bug 119882 - see above comment for bug 113531
ReferenceTypeDelegate theDelegate = ((ReferenceType) theType).getDelegate();
// TODO urgh - put a method on the interface to check this,
// string compare is hideous
if (theDelegate.getClass().getName().endsWith("EclipseSourceType")) {
continue;
}
throw new BCException("Can't find bcel delegate for " + className + " type=" + theType.getClass());
}
weaveAndNotify(classFile, classType, requestor);
wovenClassNames.add(className);
}
}
CompilationAndWeavingContext.leavingPhase(classToken);
addedClasses.clear();
deletedTypenames.clear();
requestor.weaveCompleted();
CompilationAndWeavingContext.leavingPhase(weaveToken);
if (trace.isTraceEnabled()) {
trace.exit("weave", wovenClassNames);
}
if (world.getModel() != null && world.isMinimalModel()) {
candidatesForRemoval.clear();
}
return wovenClassNames;
}
public void allWeavingComplete() {
warnOnUnmatchedAdvice();
}
/**
* In 1.5 mode and with XLint:adviceDidNotMatch enabled, put out messages for any mungers that did not match anything.
*/
private void warnOnUnmatchedAdvice() {
class AdviceLocation {
private final int lineNo;
private final UnresolvedType inAspect;
public AdviceLocation(BcelAdvice advice) {
this.lineNo = advice.getSourceLocation().getLine();
this.inAspect = advice.getDeclaringAspect();
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof AdviceLocation)) {
return false;
}
AdviceLocation other = (AdviceLocation) obj;
if (this.lineNo != other.lineNo) {
return false;
}
if (!this.inAspect.equals(other.inAspect)) {
return false;
}
return true;
}
@Override
public int hashCode() {
return 37 + 17 * lineNo + 17 * inAspect.hashCode();
}
}
// FIXME asc Should be factored out into Xlint code and done
// automatically for all xlint messages, ideally.
// if a piece of advice hasn't matched anywhere and we are in -1.5 mode,
// put out a warning
if (world.isInJava5Mode() && world.getLint().adviceDidNotMatch.isEnabled()) {
List l = world.getCrosscuttingMembersSet().getShadowMungers();
Set alreadyWarnedLocations = new HashSet();
for (Iterator iter = l.iterator(); iter.hasNext();) {
ShadowMunger element = (ShadowMunger) iter.next();
// This will stop us incorrectly reporting deow checkers:
if (element instanceof BcelAdvice) {
BcelAdvice ba = (BcelAdvice) element;
if (ba.getKind() == AdviceKind.CflowEntry || ba.getKind() == AdviceKind.CflowBelowEntry) {
continue;
}
if (!ba.hasMatchedSomething()) {
// Because we implement some features of AJ itself by
// creating our own kind of mungers, you sometimes
// find that ba.getSignature() is not a BcelMethod - for
// example it might be a cflow entry munger.
if (ba.getSignature() != null) {
// check we haven't already warned on this advice and line
// (cflow creates multiple mungers for the same advice)
AdviceLocation loc = new AdviceLocation(ba);
if (alreadyWarnedLocations.contains(loc)) {
continue;
} else {
alreadyWarnedLocations.add(loc);
}
if (!(ba.getSignature() instanceof BcelMethod)
|| !Utility.isSuppressing(ba.getSignature(), "adviceDidNotMatch")) {
world.getLint().adviceDidNotMatch.signal(ba.getDeclaringAspect().toString(), new SourceLocation(
element.getSourceLocation().getSourceFile(), element.getSourceLocation().getLine()));
}
}
}
}
}
}
}
/**
* 'typeToWeave' is one from the 'typesForWeaving' list. This routine ensures we process supertypes (classes/interfaces) of
* 'typeToWeave' that are in the 'typesForWeaving' list before 'typeToWeave' itself. 'typesToWeave' is then removed from the
* 'typesForWeaving' list.
*
* Note: Future gotcha in here ... when supplying partial hierarchies, this algorithm may break down. If you have a hierarchy
* A>B>C and only give A and C to the weaver, it may choose to weave them in either order - but you'll probably have other
* problems if you are supplying partial hierarchies like that !
*/
private void weaveParentsFor(List typesForWeaving, String typeToWeave, ResolvedType resolvedTypeToWeave) {
if (resolvedTypeToWeave == null) {
// resolve it if the caller could not pass in the resolved type
resolvedTypeToWeave = world.resolve(typeToWeave);
}
ResolvedType superclassType = resolvedTypeToWeave.getSuperclass();
String superclassTypename = (superclassType == null ? null : superclassType.getName());
// PR336654 added the 'typesForWeaving.contains(superclassTypename)' clause.
// Without it we can delete all type mungers on the parents and yet we only
// add back in the declare parents related ones, not the regular ITDs.
if (superclassType != null && !superclassType.isTypeHierarchyComplete() && superclassType.isExposedToWeaver()
&& typesForWeaving.contains(superclassTypename)) {
weaveParentsFor(typesForWeaving, superclassTypename, superclassType);
}
ResolvedType[] interfaceTypes = resolvedTypeToWeave.getDeclaredInterfaces();
for (ResolvedType resolvedSuperInterface : interfaceTypes) {
if (!resolvedSuperInterface.isTypeHierarchyComplete()) {
String interfaceTypename = resolvedSuperInterface.getName();
if (resolvedSuperInterface.isExposedToWeaver()) { // typesForWeaving.contains(interfaceTypename)) {
weaveParentsFor(typesForWeaving, interfaceTypename, resolvedSuperInterface);
}
}
}
ContextToken tok = CompilationAndWeavingContext.enteringPhase(CompilationAndWeavingContext.PROCESSING_DECLARE_PARENTS,
resolvedTypeToWeave.getName());
// If A was processed before B (and was declared 'class A implements B') then there is no need to complete B again, it
// will have been done whilst processing A.
if (!resolvedTypeToWeave.isTypeHierarchyComplete()) {
weaveParentTypeMungers(resolvedTypeToWeave);
}
CompilationAndWeavingContext.leavingPhase(tok);
typesForWeaving.remove(typeToWeave);
resolvedTypeToWeave.tagAsTypeHierarchyComplete();
}
public void prepareToProcessReweavableState() {
}
public void processReweavableStateIfPresent(String className, BcelObjectType classType) {
// If the class is marked reweavable, check any aspects around when it
// was built are in this world
WeaverStateInfo wsi = classType.getWeaverState();
// System.out.println(">> processReweavableStateIfPresent " + className + " wsi=" + wsi);
if (wsi != null && wsi.isReweavable()) { // Check all necessary types
// are around!
world.showMessage(IMessage.INFO, WeaverMessages.format(WeaverMessages.PROCESSING_REWEAVABLE, className, classType
.getSourceLocation().getSourceFile()), null, null);
Set aspectsPreviouslyInWorld = wsi.getAspectsAffectingType();
// keep track of them just to ensure unique missing aspect error
// reporting
Set alreadyConfirmedReweavableState = new HashSet();
for (String requiredTypeSignature : aspectsPreviouslyInWorld) {
// for (Iterator iter = aspectsPreviouslyInWorld.iterator(); iter.hasNext();) {
// String requiredTypeName = (String) iter.next();
if (!alreadyConfirmedReweavableState.contains(requiredTypeSignature)) {
ResolvedType rtx = world.resolve(UnresolvedType.forSignature(requiredTypeSignature), true);
boolean exists = !rtx.isMissing();
if (!exists) {
world.getLint().missingAspectForReweaving.signal(new String[] { rtx.getName(), className },
classType.getSourceLocation(), null);
// world.showMessage(IMessage.ERROR, WeaverMessages.format(WeaverMessages.MISSING_REWEAVABLE_TYPE,
// requiredTypeName, className), classType.getSourceLocation(), null);
} else {
if (world.isOverWeaving()) {
// System.out.println(">> Removing " + requiredTypeName + " from weaving process: "
// + xcutSet.deleteAspect(rtx));
} else {
// weaved in aspect that are not declared in aop.xml
// trigger an error for now
// may cause headhache for LTW and packaged lib
// without aop.xml in
// see #104218
if (!xcutSet.containsAspect(rtx)) {
world.showMessage(IMessage.ERROR, WeaverMessages.format(
WeaverMessages.REWEAVABLE_ASPECT_NOT_REGISTERED, rtx.getName(), className), null, null);
} else if (!world.getMessageHandler().isIgnoring(IMessage.INFO)) {
world.showMessage(IMessage.INFO, WeaverMessages.format(WeaverMessages.VERIFIED_REWEAVABLE_TYPE,
rtx.getName(), rtx.getSourceLocation().getSourceFile()), null, null);
}
}
alreadyConfirmedReweavableState.add(requiredTypeSignature);
}
}
}
// old:
// classType.setJavaClass(Utility.makeJavaClass(classType.getJavaClass
// ().getFileName(), wsi.getUnwovenClassFileData()));
// new: reweavable default with clever diff
if (!world.isOverWeaving()) {
byte[] bytes = wsi.getUnwovenClassFileData(classType.getJavaClass().getBytes());
WeaverVersionInfo wvi = classType.getWeaverVersionAttribute();
JavaClass newJavaClass = Utility.makeJavaClass(classType.getJavaClass().getFileName(), bytes);
classType.setJavaClass(newJavaClass, true);
classType.getResolvedTypeX().ensureConsistent();
}
// } else {
// classType.resetState();
}
}
private void weaveAndNotify(UnwovenClassFile classFile, BcelObjectType classType, IWeaveRequestor requestor) throws IOException {
trace.enter("weaveAndNotify", this, new Object[] { classFile, classType, requestor });
ContextToken tok = CompilationAndWeavingContext.enteringPhase(CompilationAndWeavingContext.WEAVING_TYPE, classType
.getResolvedTypeX().getName());
LazyClassGen clazz = weaveWithoutDump(classFile, classType);
classType.finishedWith();
// clazz is null if the classfile was unchanged by weaving...
if (clazz != null) {
UnwovenClassFile[] newClasses = getClassFilesFor(clazz);
// OPTIMIZE can we avoid using the string name at all in
// UnwovenClassFile instances?
// Copy the char[] across as it means the
// WeaverAdapter.removeFromMap() can be fast!
if (newClasses[0].getClassName().equals(classFile.getClassName())) {
newClasses[0].setClassNameAsChars(classFile.getClassNameAsChars());
}
for (int i = 0; i < newClasses.length; i++) {
requestor.acceptResult(newClasses[i]);
}
} else {
requestor.acceptResult(classFile);
}
classType.weavingCompleted();
CompilationAndWeavingContext.leavingPhase(tok);
trace.exit("weaveAndNotify");
}
/**
* helper method - will return NULL if the underlying delegate is an EclipseSourceType and not a BcelObjectType
*/
public BcelObjectType getClassType(String forClass) {
return BcelWorld.getBcelObjectType(world.resolve(forClass));
}
public void addParentTypeMungers(String typeName) {
weaveParentTypeMungers(world.resolve(typeName));
}
public void addNormalTypeMungers(String typeName) {
weaveNormalTypeMungers(world.resolve(typeName));
}
public UnwovenClassFile[] getClassFilesFor(LazyClassGen clazz) {
List childClasses = clazz.getChildClasses(world);
UnwovenClassFile[] ret = new UnwovenClassFile[1 + childClasses.size()];
ret[0] = new UnwovenClassFile(clazz.getFileName(), clazz.getClassName(), clazz.getJavaClassBytesIncludingReweavable(world));
int index = 1;
for (Iterator iter = childClasses.iterator(); iter.hasNext();) {
UnwovenClassFile.ChildClass element = iter.next();
UnwovenClassFile childClass = new UnwovenClassFile(clazz.getFileName() + "$" + element.name, element.bytes);
ret[index++] = childClass;
}
return ret;
}
/**
* Weaves new parents and annotations onto a type ("declare parents" and "declare @type")
*
* Algorithm: 1. First pass, do parents then do annotations. During this pass record: - any parent mungers that don't match but
* have a non-wild annotation type pattern - any annotation mungers that don't match 2. Multiple subsequent passes which go over
* the munger lists constructed in the first pass, repeatedly applying them until nothing changes. FIXME asc confirm that
* algorithm is optimal ??
*/
public void weaveParentTypeMungers(ResolvedType onType) {
if (onType.isRawType() || onType.isParameterizedType()) {
onType = onType.getGenericType();
}
onType.clearInterTypeMungers();
List decpToRepeat = new ArrayList();
boolean aParentChangeOccurred = false;
boolean anAnnotationChangeOccurred = false;
// First pass - apply all decp mungers
for (DeclareParents decp : declareParentsList) {
boolean typeChanged = applyDeclareParents(decp, onType);
if (typeChanged) {
aParentChangeOccurred = true;
} else {
decpToRepeat.add(decp);
}
}
// Still first pass - apply all dec @type mungers
for (DeclareAnnotation decA : xcutSet.getDeclareAnnotationOnTypes()) {
boolean typeChanged = applyDeclareAtType(decA, onType, true);
if (typeChanged) {
anAnnotationChangeOccurred = true;
}
}
while ((aParentChangeOccurred || anAnnotationChangeOccurred) && !decpToRepeat.isEmpty()) {
anAnnotationChangeOccurred = aParentChangeOccurred = false;
List decpToRepeatNextTime = new ArrayList();
for (Iterator iter = decpToRepeat.iterator(); iter.hasNext();) {
DeclareParents decp = iter.next();
boolean typeChanged = applyDeclareParents(decp, onType);
if (typeChanged) {
aParentChangeOccurred = true;
} else {
decpToRepeatNextTime.add(decp);
}
}
for (DeclareAnnotation decA : xcutSet.getDeclareAnnotationOnTypes()) {
boolean typeChanged = applyDeclareAtType(decA, onType, false);
if (typeChanged) {
anAnnotationChangeOccurred = true;
}
}
decpToRepeat = decpToRepeatNextTime;
}
}
/**
* Apply a declare @type - return true if we change the type
*/
private boolean applyDeclareAtType(DeclareAnnotation decA, ResolvedType onType, boolean reportProblems) {
boolean didSomething = false;
if (decA.matches(onType)) {
AnnotationAJ theAnnotation = decA.getAnnotation();
// can be null for broken code!
if (theAnnotation == null) {
return false;
}
if (onType.hasAnnotation(theAnnotation.getType())) {
// Could put out a lint here for an already annotated type ...
// if (reportProblems) {
// world.getLint().elementAlreadyAnnotated.signal(
// new
// String[]{onType.toString(),decA.getAnnotationTypeX().toString
// ()},
// onType.getSourceLocation(),new
// ISourceLocation[]{decA.getSourceLocation()});
// }
return false;
}
AnnotationAJ annoX = decA.getAnnotation();
// check the annotation is suitable for the target
boolean problemReported = verifyTargetIsOK(decA, onType, annoX, reportProblems);
if (!problemReported) {
AsmRelationshipProvider.addDeclareAnnotationRelationship(world.getModelAsAsmManager(), decA.getSourceLocation(),
onType.getSourceLocation(), false);
// TAG: WeavingMessage
if (!getWorld().getMessageHandler().isIgnoring(IMessage.WEAVEINFO)) {
getWorld().getMessageHandler().handleMessage(
WeaveMessage.constructWeavingMessage(
WeaveMessage.WEAVEMESSAGE_ANNOTATES,
new String[] { onType.toString(), Utility.beautifyLocation(onType.getSourceLocation()),
decA.getAnnotationString(), "type", decA.getAspect().toString(),
Utility.beautifyLocation(decA.getSourceLocation()) }));
}
didSomething = true;
ResolvedTypeMunger newAnnotationTM = new AnnotationOnTypeMunger(annoX);
newAnnotationTM.setSourceLocation(decA.getSourceLocation());
onType.addInterTypeMunger(new BcelTypeMunger(newAnnotationTM, decA.getAspect().resolve(world)), false);
decA.copyAnnotationTo(onType);
}
}
return didSomething;
}
/**
* Checks for an @target() on the annotation and if found ensures it allows the annotation to be attached to the target type
* that matched.
*/
private boolean verifyTargetIsOK(DeclareAnnotation decA, ResolvedType onType, AnnotationAJ annoX, boolean outputProblems) {
boolean problemReported = false;
if (annoX.specifiesTarget()) {
if ((onType.isAnnotation() && !annoX.allowedOnAnnotationType()) || (!annoX.allowedOnRegularType())) {
if (outputProblems) {
if (decA.isExactPattern()) {
world.getMessageHandler().handleMessage(
MessageUtil.error(
WeaverMessages.format(WeaverMessages.INCORRECT_TARGET_FOR_DECLARE_ANNOTATION,
onType.getName(), annoX.getTypeName(), annoX.getValidTargets()),
decA.getSourceLocation()));
} else {
if (world.getLint().invalidTargetForAnnotation.isEnabled()) {
world.getLint().invalidTargetForAnnotation.signal(new String[] { onType.getName(), annoX.getTypeName(),
annoX.getValidTargets() }, decA.getSourceLocation(),
new ISourceLocation[] { onType.getSourceLocation() });
}
}
}
problemReported = true;
}
}
return problemReported;
}
/**
* Apply a single declare parents - return true if we change the type
*/
private boolean applyDeclareParents(DeclareParents p, ResolvedType onType) {
boolean didSomething = false;
List newParents = p.findMatchingNewParents(onType, true);
if (!newParents.isEmpty()) {
didSomething = true;
BcelWorld.getBcelObjectType(onType);
// System.err.println("need to do declare parents for: " + onType);
for (ResolvedType newParent : newParents) {
// We set it here so that the imminent matching for ITDs can
// succeed - we still haven't done the necessary changes to the class file
// itself (like transform super calls) - that is done in
// BcelTypeMunger.mungeNewParent()
// classType.addParent(newParent);
onType.addParent(newParent);
NewParentTypeMunger newParentMunger = new NewParentTypeMunger(newParent, p.getDeclaringType());
if (p.isMixin()) {
newParentMunger.setIsMixin(true);
}
newParentMunger.setSourceLocation(p.getSourceLocation());
onType.addInterTypeMunger(new BcelTypeMunger(newParentMunger, xcutSet.findAspectDeclaringParents(p)), false);
}
}
return didSomething;
}
public void weaveNormalTypeMungers(ResolvedType onType) {
ContextToken tok = CompilationAndWeavingContext.enteringPhase(CompilationAndWeavingContext.PROCESSING_TYPE_MUNGERS,
onType.getName());
if (onType.isRawType() || onType.isParameterizedType()) {
onType = onType.getGenericType();
}
for (ConcreteTypeMunger m : typeMungerList) {
if (!m.isLateMunger() && m.matches(onType)) {
onType.addInterTypeMunger(m, false);
}
}
CompilationAndWeavingContext.leavingPhase(tok);
}
// exposed for ClassLoader dynamic weaving
public LazyClassGen weaveWithoutDump(UnwovenClassFile classFile, BcelObjectType classType) throws IOException {
return weave(classFile, classType, false);
}
// FOR TESTING
LazyClassGen weave(UnwovenClassFile classFile, BcelObjectType classType) throws IOException {
LazyClassGen ret = weave(classFile, classType, true);
return ret;
}
private LazyClassGen weave(UnwovenClassFile classFile, BcelObjectType classType, boolean dump) throws IOException {
try {
if (classType.isSynthetic()) { // Don't touch synthetic classes
if (dump) {
dumpUnchanged(classFile);
}
return null;
}
ReferenceType resolvedClassType = classType.getResolvedTypeX();
if (world.isXmlConfigured() && world.getXmlConfiguration().excludesType(resolvedClassType)) {
if (!world.getMessageHandler().isIgnoring(IMessage.INFO)) {
world.getMessageHandler().handleMessage(
MessageUtil.info("Type '" + resolvedClassType.getName()
+ "' not woven due to exclusion via XML weaver exclude section"));
}
if (dump) {
dumpUnchanged(classFile);
}
return null;
}
List shadowMungers = fastMatch(shadowMungerList, resolvedClassType);
List typeMungers = classType.getResolvedTypeX().getInterTypeMungers();
resolvedClassType.checkInterTypeMungers();
// Decide if we need to do actual weaving for this class
boolean mightNeedToWeave = shadowMungers.size() > 0 || typeMungers.size() > 0 || classType.isAspect()
|| world.getDeclareAnnotationOnMethods().size() > 0 || world.getDeclareAnnotationOnFields().size() > 0;
// May need bridge methods if on 1.5 and something in our hierarchy is
// affected by ITDs
boolean mightNeedBridgeMethods = world.isInJava5Mode() && !classType.isInterface()
&& resolvedClassType.getInterTypeMungersIncludingSupers().size() > 0;
LazyClassGen clazz = null;
if (mightNeedToWeave || mightNeedBridgeMethods) {
clazz = classType.getLazyClassGen();
// System.err.println("got lazy gen: " + clazz + ", " +
// clazz.getWeaverState());
try {
boolean isChanged = false;
if (mightNeedToWeave) {
isChanged = BcelClassWeaver.weave(world, clazz, shadowMungers, typeMungers, lateTypeMungerList,
inReweavableMode);
}
checkDeclareTypeErrorOrWarning(world, classType);
if (mightNeedBridgeMethods) {
isChanged = BcelClassWeaver.calculateAnyRequiredBridgeMethods(world, clazz) || isChanged;
}
if (isChanged) {
if (dump) {
dump(classFile, clazz);
}
return clazz;
}
} catch (RuntimeException re) {
String classDebugInfo = null;
try {
classDebugInfo = clazz.toLongString();
} catch (Throwable e) {
new RuntimeException("Crashed whilst crashing with this exception: " + e, e).printStackTrace();
// recover from crash whilst producing debug string
classDebugInfo = clazz.getClassName();
}
String messageText = "trouble in: \n" + classDebugInfo;
getWorld().getMessageHandler().handleMessage(new Message(messageText, IMessage.ABORT, re, null));
} catch (Error re) {
String classDebugInfo = null;
try {
classDebugInfo = clazz.toLongString();
} catch (OutOfMemoryError oome) {
System.err.println("Ran out of memory creating debug info for an error");
re.printStackTrace(System.err);
// recover from crash whilst producing debug string
classDebugInfo = clazz.getClassName();
} catch (Throwable e) {
// recover from crash whilst producing debug string
classDebugInfo = clazz.getClassName();
}
String messageText = "trouble in: \n" + classDebugInfo;
getWorld().getMessageHandler().handleMessage(new Message(messageText, IMessage.ABORT, re, null));
}
} else {
checkDeclareTypeErrorOrWarning(world, classType);
}
// this is very odd return behavior trying to keep everyone happy
// can we remove it from the model now? we know it contains no relationship endpoints...
AsmManager model = world.getModelAsAsmManager();
if (world.isMinimalModel() && model != null && !classType.isAspect()) {
AspectJElementHierarchy hierarchy = (AspectJElementHierarchy) model.getHierarchy();
String pkgname = classType.getResolvedTypeX().getPackageName();
String tname = classType.getResolvedTypeX().getSimpleBaseName();
IProgramElement typeElement = hierarchy.findElementForType(pkgname, tname);
if (typeElement != null && hasInnerType(typeElement)) {
// Cannot remove it right now (has inner type), schedule it
// for possible deletion later if all inner types are
// removed
candidatesForRemoval.add(typeElement);
}
if (typeElement != null && !hasInnerType(typeElement)) {
IProgramElement parent = typeElement.getParent();
// parent may have children: PACKAGE DECL, IMPORT-REFERENCE, TYPE_DECL
if (parent != null) {
// if it was the only type we should probably remove
// the others too.
parent.removeChild(typeElement);
if (parent.getKind().isSourceFile()) {
removeSourceFileIfNoMoreTypeDeclarationsInside(hierarchy, typeElement, parent);
} else {
hierarchy.forget(null, typeElement);
// At this point, the child has been removed. We
// should now check if the parent is in our
// 'candidatesForRemoval' set. If it is then that
// means we were going to remove it but it had a
// child. Now we can check if it still has a child -
// if it doesn't it can also be removed!
walkUpRemovingEmptyTypesAndPossiblyEmptySourceFile(hierarchy, tname, parent);
}
}
}
}
if (dump) {
dumpUnchanged(classFile);
return clazz;
} else {
// ATAJ: the class was not weaved, but since it gets there early it
// may have new generated inner classes
// attached to it to support LTW perX aspectOf support (see
// BcelPerClauseAspectAdder)
// that aggressively defines the inner $mayHaveAspect
// interface.
if (clazz != null && !clazz.getChildClasses(world).isEmpty()) {
return clazz;
}
return null;
}
} finally {
world.demote();
}
}
private void walkUpRemovingEmptyTypesAndPossiblyEmptySourceFile(AspectJElementHierarchy hierarchy, String tname,
IProgramElement typeThatHasChildRemoved) {
// typeThatHasChildRemoved might be a source file, type or a method/ctor
// - for a method/ctor find the type/sourcefile
while (typeThatHasChildRemoved != null
&& !(typeThatHasChildRemoved.getKind().isType() || typeThatHasChildRemoved.getKind().isSourceFile())) {
// this will take us 'up' through methods that contain anonymous
// inner classes
typeThatHasChildRemoved = typeThatHasChildRemoved.getParent();
}
// now typeThatHasChildRemoved points to the type or sourcefile that has
// had something removed
if (candidatesForRemoval.contains(typeThatHasChildRemoved) && !hasInnerType(typeThatHasChildRemoved)) {
// now we can get rid of it
IProgramElement parent = typeThatHasChildRemoved.getParent();
if (parent != null) {
parent.removeChild(typeThatHasChildRemoved);
candidatesForRemoval.remove(typeThatHasChildRemoved);
if (parent.getKind().isSourceFile()) {
removeSourceFileIfNoMoreTypeDeclarationsInside(hierarchy, typeThatHasChildRemoved, parent);
// System.out.println("Removed on second pass: " +
// typeThatHasChildRemoved.getName());
} else {
// System.out.println("On later pass, parent of type " +
// typeThatHasChildRemoved.getName()
// + " was found not to be a sourcefile, recursing up...");
walkUpRemovingEmptyTypesAndPossiblyEmptySourceFile(hierarchy, tname, parent);
}
}
}
}
private void removeSourceFileIfNoMoreTypeDeclarationsInside(AspectJElementHierarchy hierarchy, IProgramElement typeElement,
IProgramElement sourceFileNode) {
IProgramElement compilationUnit = sourceFileNode;
boolean anyOtherTypeDeclarations = false;
for (IProgramElement child : compilationUnit.getChildren()) {
IProgramElement.Kind k = child.getKind();
if (k.isType()) {
anyOtherTypeDeclarations = true;
break;
}
}
// If the compilation unit node contained no
// other types, there is no need to keep it
if (!anyOtherTypeDeclarations) {
IProgramElement cuParent = compilationUnit.getParent();
if (cuParent != null) {
compilationUnit.setParent(null);
cuParent.removeChild(compilationUnit);
}
// need to update some caches and structures too?
hierarchy.forget(sourceFileNode, typeElement);
} else {
hierarchy.forget(null, typeElement);
}
}
// ---- writing
// TODO could be smarter - really only matters if inner type has been woven, but there is a chance we haven't woven it *yet*
private boolean hasInnerType(IProgramElement typeNode) {
for (IProgramElement child : typeNode.getChildren()) {
IProgramElement.Kind kind = child.getKind();
if (kind.isType()) {
return true;
}
// if (kind == IProgramElement.Kind.ASPECT) {
// return true;
// }
if (kind.isType() || kind == IProgramElement.Kind.METHOD || kind == IProgramElement.Kind.CONSTRUCTOR) {
boolean b = hasInnerType(child);
if (b) {
return b;
}
}
}
return false;
}
private void checkDeclareTypeErrorOrWarning(BcelWorld world2, BcelObjectType classType) {
List dteows = world.getDeclareTypeEows();
for (DeclareTypeErrorOrWarning dteow : dteows) {
if (dteow.getTypePattern().matchesStatically(classType.getResolvedTypeX())) {
if (dteow.isError()) {
world.getMessageHandler().handleMessage(
MessageUtil.error(dteow.getMessage(), classType.getResolvedTypeX().getSourceLocation()));
} else {
world.getMessageHandler().handleMessage(
MessageUtil.warn(dteow.getMessage(), classType.getResolvedTypeX().getSourceLocation()));
}
}
}
}
private void dumpUnchanged(UnwovenClassFile classFile) throws IOException {
if (zipOutputStream != null) {
writeZipEntry(getEntryName(classFile.getJavaClass().getClassName()), classFile.getBytes());
} else {
classFile.writeUnchangedBytes();
}
}
private String getEntryName(String className) {
// XXX what does bcel's getClassName do for inner names
return className.replace('.', '/') + ".class";
}
private void dump(UnwovenClassFile classFile, LazyClassGen clazz) throws IOException {
if (zipOutputStream != null) {
String mainClassName = classFile.getJavaClass().getClassName();
writeZipEntry(getEntryName(mainClassName), clazz.getJavaClass(world).getBytes());
List childClasses = clazz.getChildClasses(world);
if (!childClasses.isEmpty()) {
for (Iterator i = childClasses.iterator(); i.hasNext();) {
UnwovenClassFile.ChildClass c = i.next();
writeZipEntry(getEntryName(mainClassName + "$" + c.name), c.bytes);
}
}
} else {
classFile.writeWovenBytes(clazz.getJavaClass(world).getBytes(), clazz.getChildClasses(world));
}
}
private void writeZipEntry(String name, byte[] bytes) throws IOException {
ZipEntry newEntry = new ZipEntry(name); // ??? get compression scheme
// right
zipOutputStream.putNextEntry(newEntry);
zipOutputStream.write(bytes);
zipOutputStream.closeEntry();
}
/**
* Perform a fast match of the specified list of shadowmungers against the specified type. A subset of those that might match is
* returned.
*
* @param list list of all shadow mungers that might match
* @param type the target type
* @return a list of shadow mungers that might match with those that cannot (according to fast match rules) removed
*/
private List fastMatch(List list, ResolvedType type) {
if (list == null) {
return Collections.emptyList();
}
boolean isOverweaving = world.isOverWeaving();
WeaverStateInfo typeWeaverState = (isOverweaving ? type.getWeaverState() : null);
// here we do the coarsest grained fast match with no kind constraints
// this will remove all obvious non-matches and see if we need to do any
// weaving
FastMatchInfo info = new FastMatchInfo(type, null, world);
List result = new ArrayList();
if (world.areInfoMessagesEnabled() && world.isTimingEnabled()) {
for (ShadowMunger munger : list) {
if (typeWeaverState != null) { // will only be null if overweaving is ON and there is weaverstate
ResolvedType declaringAspect = munger.getDeclaringType();
if (typeWeaverState.isAspectAlreadyApplied(declaringAspect)) {
continue;
}
}
Pointcut pointcut = munger.getPointcut();
long starttime = System.nanoTime();
FuzzyBoolean fb = pointcut.fastMatch(info);
long endtime = System.nanoTime();
world.recordFastMatch(pointcut, endtime - starttime);
if (fb.maybeTrue()) {
result.add(munger);
}
}
} else {
for (ShadowMunger munger : list) {
if (typeWeaverState != null) { // will only be null if overweaving is ON and there is weaverstate
ResolvedType declaringAspect = munger.getConcreteAspect();// getDeclaringType();
if (typeWeaverState.isAspectAlreadyApplied(declaringAspect)) {
continue;
}
}
Pointcut pointcut = munger.getPointcut();
FuzzyBoolean fb = pointcut.fastMatch(info);
if (fb.maybeTrue()) {
result.add(munger);
}
}
}
return result;
}
public void setReweavableMode(boolean xNotReweavable) {
inReweavableMode = !xNotReweavable;
WeaverStateInfo.setReweavableModeDefaults(!xNotReweavable, false, true);
}
public boolean isReweavable() {
return inReweavableMode;
}
public World getWorld() {
return world;
}
public void tidyUp() {
if (trace.isTraceEnabled()) {
trace.enter("tidyUp", this);
}
shadowMungerList = null; // setup by prepareForWeave
typeMungerList = null; // setup by prepareForWeave
lateTypeMungerList = null; // setup by prepareForWeave
declareParentsList = null; // setup by prepareForWeave
if (trace.isTraceEnabled()) {
trace.exit("tidyUp");
}
}
public void write(CompressingDataOutputStream dos) throws IOException {
xcutSet.write(dos);
}
// only called for testing
public void setShadowMungers(List shadowMungers) {
shadowMungerList = shadowMungers;
}
}