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/* *******************************************************************
* Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
* 2005 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
*
* Contributors:
* PARC initial implementation
* Adrian Colyer, Andy Clement, overhaul for generics
* ******************************************************************/
package org.aspectj.weaver;
import java.lang.ref.ReferenceQueue;
import java.lang.ref.SoftReference;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.WeakHashMap;
import org.aspectj.bridge.IMessageHandler;
import org.aspectj.bridge.ISourceLocation;
import org.aspectj.bridge.Message;
import org.aspectj.bridge.MessageUtil;
import org.aspectj.bridge.IMessage.Kind;
import org.aspectj.bridge.context.PinpointingMessageHandler;
import org.aspectj.util.IStructureModel;
import org.aspectj.weaver.UnresolvedType.TypeKind;
import org.aspectj.weaver.patterns.DeclarePrecedence;
import org.aspectj.weaver.patterns.Pointcut;
import org.aspectj.weaver.patterns.TypePattern;
import org.aspectj.weaver.tools.PointcutDesignatorHandler;
import org.aspectj.weaver.tools.Trace;
import org.aspectj.weaver.tools.TraceFactory;
/**
* A World is a collection of known types and crosscutting members.
*/
public abstract class World implements Dump.INode {
/** handler for any messages produced during resolution etc. */
private IMessageHandler messageHandler = IMessageHandler.SYSTEM_ERR;
/**
* handler for cross-reference information produced during the weaving process
*/
private ICrossReferenceHandler xrefHandler = null;
/**
* Currently 'active' scope in which to lookup (resolve) typevariable references
*/
private TypeVariableDeclaringElement typeVariableLookupScope;
/** The heart of the world, a map from type signatures to resolved types */
protected TypeMap typeMap = new TypeMap(this); // Signature to ResolvedType
/** New pointcut designators this world supports */
private Set pointcutDesignators;
// see pr145963
/** Should we create the hierarchy for binary classes and aspects */
public static boolean createInjarHierarchy = true;
/** Calculator for working out aspect precedence */
private final AspectPrecedenceCalculator precedenceCalculator;
/** All of the type and shadow mungers known to us */
private final CrosscuttingMembersSet crosscuttingMembersSet = new CrosscuttingMembersSet(this);
/** The structure model for the compilation */
private IStructureModel model = null;
/** for processing Xlint messages */
private Lint lint = new Lint(this);
/** XnoInline option setting passed down to weaver */
private boolean XnoInline;
/** XlazyTjp option setting passed down to weaver */
private boolean XlazyTjp;
/** XhasMember option setting passed down to weaver */
private boolean XhasMember = false;
/**
* Xpinpoint controls whether we put out developer info showing the source of messages
*/
private boolean Xpinpoint = false;
/** When behaving in a Java 5 way autoboxing is considered */
private boolean behaveInJava5Way = false;
/** Determines if this world could be used for multiple compiles */
private boolean incrementalCompileCouldFollow = false;
/** The level of the aspectjrt.jar the code we generate needs to run on */
private String targetAspectjRuntimeLevel = Constants.RUNTIME_LEVEL_DEFAULT;
/** Flags for the new joinpoints that are 'optional' */
private boolean optionalJoinpoint_ArrayConstruction = false; // Command line
// flag:
// "-Xjoinpoints:arrayconstruction"
private boolean optionalJoinpoint_Synchronization = false; // Command line
// flag:
// "-Xjoinpoints:synchronization"
private boolean addSerialVerUID = false;
private Properties extraConfiguration = null;
private boolean checkedAdvancedConfiguration = false;
private boolean synchronizationPointcutsInUse = false;
// Xset'table options
private boolean runMinimalMemory = false;
private boolean shouldPipelineCompilation = true;
private boolean shouldGenerateStackMaps = false;
protected boolean bcelRepositoryCaching = xsetBCEL_REPOSITORY_CACHING_DEFAULT.equalsIgnoreCase("true");
private boolean fastMethodPacking = false;
private boolean completeBinaryTypes = false;
public boolean forDEBUG_structuralChangesCode = false;
public boolean forDEBUG_bridgingCode = false;
private static Trace trace = TraceFactory.getTraceFactory().getTrace(World.class);
private long errorThreshold;
private long warningThreshold;
/**
* A list of RuntimeExceptions containing full stack information for every type we couldn't find.
*/
private List dumpState_cantFindTypeExceptions = null;
/**
* Play God. On the first day, God created the primitive types and put them in the type map.
*/
protected World() {
super();
if (trace.isTraceEnabled())
trace.enter("", this);
Dump.registerNode(this.getClass(), this);
typeMap.put("B", ResolvedType.BYTE);
typeMap.put("S", ResolvedType.SHORT);
typeMap.put("I", ResolvedType.INT);
typeMap.put("J", ResolvedType.LONG);
typeMap.put("F", ResolvedType.FLOAT);
typeMap.put("D", ResolvedType.DOUBLE);
typeMap.put("C", ResolvedType.CHAR);
typeMap.put("Z", ResolvedType.BOOLEAN);
typeMap.put("V", ResolvedType.VOID);
precedenceCalculator = new AspectPrecedenceCalculator(this);
if (trace.isTraceEnabled())
trace.exit("");
}
/**
* Dump processing when a fatal error occurs
*/
public void accept(Dump.IVisitor visitor) {
// visitor.visitObject("Extra configuration:");
// visitor.visitList(extraConfiguration.);
visitor.visitObject("Shadow mungers:");
visitor.visitList(crosscuttingMembersSet.getShadowMungers());
visitor.visitObject("Type mungers:");
visitor.visitList(crosscuttingMembersSet.getTypeMungers());
visitor.visitObject("Late Type mungers:");
visitor.visitList(crosscuttingMembersSet.getLateTypeMungers());
if (dumpState_cantFindTypeExceptions != null) {
visitor.visitObject("Cant find type problems:");
visitor.visitList(dumpState_cantFindTypeExceptions);
dumpState_cantFindTypeExceptions = null;
}
}
// ==========================================================================
// ===
// T Y P E R E S O L U T I O N
// ==========================================================================
// ===
/**
* Resolve a type that we require to be present in the world
*/
public ResolvedType resolve(UnresolvedType ty) {
return resolve(ty, false);
}
/**
* Attempt to resolve a type - the source location gives you some context in which resolution is taking place. In the case of an
* error where we can't find the type - we can then at least report why (source location) we were trying to resolve it.
*/
public ResolvedType resolve(UnresolvedType ty, ISourceLocation isl) {
ResolvedType ret = resolve(ty, true);
if (ResolvedType.isMissing(ty)) {
// IMessage msg = null;
getLint().cantFindType.signal(WeaverMessages.format(WeaverMessages.CANT_FIND_TYPE, ty.getName()), isl);
// if (isl!=null) {
// msg = MessageUtil.error(WeaverMessages.format(WeaverMessages.
// CANT_FIND_TYPE,ty.getName()),isl);
// } else {
// msg = MessageUtil.error(WeaverMessages.format(WeaverMessages.
// CANT_FIND_TYPE,ty.getName()));
// }
// messageHandler.handleMessage(msg);
}
return ret;
}
/**
* Convenience method for resolving an array of unresolved types in one hit. Useful for e.g. resolving type parameters in
* signatures.
*/
public ResolvedType[] resolve(UnresolvedType[] types) {
if (types == null)
return new ResolvedType[0];
ResolvedType[] ret = new ResolvedType[types.length];
for (int i = 0; i < types.length; i++) {
ret[i] = resolve(types[i]);
}
return ret;
}
/**
* Resolve a type. This the hub of type resolution. The resolved type is added to the type map by signature.
*/
public ResolvedType resolve(UnresolvedType ty, boolean allowMissing) {
// special resolution processing for already resolved types.
if (ty instanceof ResolvedType) {
ResolvedType rty = (ResolvedType) ty;
rty = resolve(rty);
return rty;
}
// dispatch back to the type variable reference to resolve its
// constituent parts
// don't do this for other unresolved types otherwise you'll end up in a
// loop
if (ty.isTypeVariableReference()) {
return ty.resolve(this);
}
// if we've already got a resolved type for the signature, just return
// it
// after updating the world
String signature = ty.getSignature();
ResolvedType ret = typeMap.get(signature);
if (ret != null) {
ret.world = this; // Set the world for the RTX
return ret;
} else if (signature.equals("?") || signature.equals("*")) {
// might be a problem here, not sure '?' should make it to here as a
// signature, the
// proper signature for wildcard '?' is '*'
// fault in generic wildcard, can't be done earlier because of init
// issues
// TODO ought to be shared single instance representing this
ResolvedType something = new BoundedReferenceType("*", "Ljava/lang/Object", this);
typeMap.put("?", something);
return something;
}
// no existing resolved type, create one
if (ty.isArray()) {
ResolvedType componentType = resolve(ty.getComponentType(), allowMissing);
// String brackets =
// signature.substring(0,signature.lastIndexOf("[")+1);
ret = new ArrayReferenceType(signature, "[" + componentType.getErasureSignature(), this, componentType);
} else {
ret = resolveToReferenceType(ty, allowMissing);
if (!allowMissing && ret.isMissing()) {
ret = handleRequiredMissingTypeDuringResolution(ty);
}
if (completeBinaryTypes) {
completeBinaryType(ret);
}
}
// Pulling in the type may have already put the right entry in the map
if (typeMap.get(signature) == null && !ret.isMissing()) {
typeMap.put(signature, ret);
}
return ret;
}
/**
* Called when a type is resolved - enables its type hierarchy to be finished off before we proceed
*/
protected void completeBinaryType(ResolvedType ret) {
}
/**
* Return true if the classloader relating to this world is definetly the one that will define the specified class. Return false
* otherwise or we don't know for certain.
*/
public boolean isLocallyDefined(String classname) {
return false;
}
/**
* We tried to resolve a type and couldn't find it...
*/
private ResolvedType handleRequiredMissingTypeDuringResolution(UnresolvedType ty) {
// defer the message until someone asks a question of the type that we
// can't answer
// just from the signature.
// MessageUtil.error(messageHandler,
// WeaverMessages.format(WeaverMessages.CANT_FIND_TYPE,ty.getName()));
if (dumpState_cantFindTypeExceptions == null) {
dumpState_cantFindTypeExceptions = new ArrayList();
}
if (dumpState_cantFindTypeExceptions.size() < 100) { // limit growth
dumpState_cantFindTypeExceptions.add(new RuntimeException("Can't find type " + ty.getName()));
}
return new MissingResolvedTypeWithKnownSignature(ty.getSignature(), this);
}
/**
* Some TypeFactory operations create resolved types directly, but these won't be in the typeMap - this resolution process puts
* them there. Resolved types are also told their world which is needed for the special autoboxing resolved types.
*/
public ResolvedType resolve(ResolvedType ty) {
if (ty.isTypeVariableReference())
return ty; // until type variables have proper sigs...
ResolvedType resolved = typeMap.get(ty.getSignature());
if (resolved == null) {
typeMap.put(ty.getSignature(), ty);
resolved = ty;
}
resolved.world = this;
return resolved;
}
/**
* Convenience method for finding a type by name and resolving it in one step.
*/
public ResolvedType resolve(String name) {
// trace.enter("resolve", this, new Object[] {name});
ResolvedType ret = resolve(UnresolvedType.forName(name));
// trace.exit("resolve", ret);
return ret;
}
public ResolvedType resolve(String name, boolean allowMissing) {
return resolve(UnresolvedType.forName(name), allowMissing);
}
/**
* Resolve to a ReferenceType - simple, raw, parameterized, or generic. Raw, parameterized, and generic versions of a type share
* a delegate.
*/
private final ResolvedType resolveToReferenceType(UnresolvedType ty, boolean allowMissing) {
if (ty.isParameterizedType()) {
// ======= parameterized types ================
ResolvedType rt = resolveGenericTypeFor(ty, allowMissing);
if (rt.isMissing())
return rt;
ReferenceType genericType = (ReferenceType) rt;
ReferenceType parameterizedType = TypeFactory.createParameterizedType(genericType, ty.typeParameters, this);
return parameterizedType;
} else if (ty.isGenericType()) {
// ======= generic types ======================
ReferenceType genericType = (ReferenceType) resolveGenericTypeFor(ty, false);
return genericType;
} else if (ty.isGenericWildcard()) {
// ======= generic wildcard types =============
return resolveGenericWildcardFor((WildcardedUnresolvedType) ty);
} else {
// ======= simple and raw types ===============
String erasedSignature = ty.getErasureSignature();
ReferenceType simpleOrRawType = new ReferenceType(erasedSignature, this);
if (ty.needsModifiableDelegate())
simpleOrRawType.setNeedsModifiableDelegate(true);
ReferenceTypeDelegate delegate = resolveDelegate(simpleOrRawType);
// 117854
// if (delegate == null) return ResolvedType.MISSING;
if (delegate == null)
return new MissingResolvedTypeWithKnownSignature(ty.getSignature(), erasedSignature, this);// ResolvedType
// .
// MISSING
// ;
if (delegate.isGeneric() && behaveInJava5Way) {
// ======== raw type ===========
simpleOrRawType.typeKind = TypeKind.RAW;
ReferenceType genericType = makeGenericTypeFrom(delegate, simpleOrRawType);
// name =
// ReferenceType.fromTypeX(UnresolvedType.forRawTypeNames(
// ty.getName()),this);
simpleOrRawType.setDelegate(delegate);
genericType.setDelegate(delegate);
simpleOrRawType.setGenericType(genericType);
return simpleOrRawType;
} else {
// ======== simple type =========
simpleOrRawType.setDelegate(delegate);
return simpleOrRawType;
}
}
}
/**
* Attempt to resolve a type that should be a generic type.
*/
public ResolvedType resolveGenericTypeFor(UnresolvedType anUnresolvedType, boolean allowMissing) {
// Look up the raw type by signature
String rawSignature = anUnresolvedType.getRawType().getSignature();
ResolvedType rawType = typeMap.get(rawSignature);
if (rawType == null) {
rawType = resolve(UnresolvedType.forSignature(rawSignature), allowMissing);
typeMap.put(rawSignature, rawType);
}
if (rawType.isMissing())
return rawType;
// Does the raw type know its generic form? (It will if we created the
// raw type from a source type, it won't if its been created just
// through
// being referenced, e.g. java.util.List
ResolvedType genericType = rawType.getGenericType();
// There is a special case to consider here (testGenericsBang_pr95993
// highlights it)
// You may have an unresolvedType for a parameterized type but it
// is backed by a simple type rather than a generic type. This occurs
// for
// inner types of generic types that inherit their enclosing types
// type variables.
if (rawType.isSimpleType() && (anUnresolvedType.typeParameters == null || anUnresolvedType.typeParameters.length == 0)) {
rawType.world = this;
return rawType;
}
if (genericType != null) {
genericType.world = this;
return genericType;
} else {
// Fault in the generic that underpins the raw type ;)
ReferenceTypeDelegate delegate = resolveDelegate((ReferenceType) rawType);
ReferenceType genericRefType = makeGenericTypeFrom(delegate, ((ReferenceType) rawType));
((ReferenceType) rawType).setGenericType(genericRefType);
genericRefType.setDelegate(delegate);
((ReferenceType) rawType).setDelegate(delegate);
return genericRefType;
}
}
private ReferenceType makeGenericTypeFrom(ReferenceTypeDelegate delegate, ReferenceType rawType) {
String genericSig = delegate.getDeclaredGenericSignature();
if (genericSig != null) {
return new ReferenceType(UnresolvedType.forGenericTypeSignature(rawType.getSignature(), delegate
.getDeclaredGenericSignature()), this);
} else {
return new ReferenceType(UnresolvedType.forGenericTypeVariables(rawType.getSignature(), delegate.getTypeVariables()),
this);
}
}
/**
* Go from an unresolved generic wildcard (represented by UnresolvedType) to a resolved version (BoundedReferenceType).
*/
private ReferenceType resolveGenericWildcardFor(WildcardedUnresolvedType aType) {
BoundedReferenceType ret = null;
// FIXME asc doesnt take account of additional interface bounds (e.g. ?
// super R & Serializable - can you do that?)
if (aType.isExtends()) {
ReferenceType upperBound = (ReferenceType) resolve(aType.getUpperBound());
ret = new BoundedReferenceType(upperBound, true, this);
} else if (aType.isSuper()) {
ReferenceType lowerBound = (ReferenceType) resolve(aType.getLowerBound());
ret = new BoundedReferenceType(lowerBound, false, this);
} else {
// must be ? on its own!
ret = new BoundedReferenceType("*", "Ljava/lang/Object", this);
}
return ret;
}
/**
* Find the ReferenceTypeDelegate behind this reference type so that it can fulfill its contract.
*/
protected abstract ReferenceTypeDelegate resolveDelegate(ReferenceType ty);
/**
* Special resolution for "core" types like OBJECT. These are resolved just like any other type, but if they are not found it is
* more serious and we issue an error message immediately.
*/
// OPTIMIZE streamline path for core types? They are just simple types,
// could look straight in the typemap?
public ResolvedType getCoreType(UnresolvedType tx) {
ResolvedType coreTy = resolve(tx, true);
if (coreTy.isMissing()) {
MessageUtil.error(messageHandler, WeaverMessages.format(WeaverMessages.CANT_FIND_CORE_TYPE, tx.getName()));
}
return coreTy;
}
/**
* Lookup a type by signature, if not found then build one and put it in the map.
*/
public ReferenceType lookupOrCreateName(UnresolvedType ty) {
String signature = ty.getSignature();
ReferenceType ret = lookupBySignature(signature);
if (ret == null) {
ret = ReferenceType.fromTypeX(ty, this);
typeMap.put(signature, ret);
}
return ret;
}
/**
* Lookup a reference type in the world by its signature. Returns null if not found.
*/
public ReferenceType lookupBySignature(String signature) {
return (ReferenceType) typeMap.get(signature);
}
// ==========================================================================
// ===
// T Y P E R E S O L U T I O N -- E N D
// ==========================================================================
// ===
/**
* Member resolution is achieved by resolving the declaring type and then looking up the member in the resolved declaring type.
*/
public ResolvedMember resolve(Member member) {
ResolvedType declaring = member.getDeclaringType().resolve(this);
if (declaring.isRawType())
declaring = declaring.getGenericType();
ResolvedMember ret;
if (member.getKind() == Member.FIELD) {
ret = declaring.lookupField(member);
} else {
ret = declaring.lookupMethod(member);
}
if (ret != null)
return ret;
return declaring.lookupSyntheticMember(member);
}
public abstract IWeavingSupport getWeavingSupport();
/**
* Create an advice shadow munger from the given advice attribute
*/
// public abstract Advice createAdviceMunger(AjAttribute.AdviceAttribute
// attribute, Pointcut pointcut, Member signature);
/**
* Create an advice shadow munger for the given advice kind
*/
public final Advice createAdviceMunger(AdviceKind kind, Pointcut p, Member signature, int extraParameterFlags,
IHasSourceLocation loc) {
AjAttribute.AdviceAttribute attribute = new AjAttribute.AdviceAttribute(kind, p, extraParameterFlags, loc.getStart(), loc
.getEnd(), loc.getSourceContext());
return getWeavingSupport().createAdviceMunger(attribute, p, signature);
}
/**
* Same signature as org.aspectj.util.PartialOrder.PartialComparable.compareTo
*/
public int compareByPrecedence(ResolvedType aspect1, ResolvedType aspect2) {
return precedenceCalculator.compareByPrecedence(aspect1, aspect2);
}
public Integer getPrecedenceIfAny(ResolvedType aspect1, ResolvedType aspect2) {
return precedenceCalculator.getPrecedenceIfAny(aspect1, aspect2);
}
/**
* compares by precedence with the additional rule that a super-aspect is sorted before its sub-aspects
*/
public int compareByPrecedenceAndHierarchy(ResolvedType aspect1, ResolvedType aspect2) {
return precedenceCalculator.compareByPrecedenceAndHierarchy(aspect1, aspect2);
}
// simple property getter and setters
// ===========================================================
/**
* Nobody should hold onto a copy of this message handler, or setMessageHandler won't work right.
*/
public IMessageHandler getMessageHandler() {
return messageHandler;
}
public void setMessageHandler(IMessageHandler messageHandler) {
if (this.isInPinpointMode()) {
this.messageHandler = new PinpointingMessageHandler(messageHandler);
} else {
this.messageHandler = messageHandler;
}
}
/**
* convenenience method for creating and issuing messages via the message handler - if you supply two locations you will get two
* messages.
*/
public void showMessage(Kind kind, String message, ISourceLocation loc1, ISourceLocation loc2) {
if (loc1 != null) {
messageHandler.handleMessage(new Message(message, kind, null, loc1));
if (loc2 != null) {
messageHandler.handleMessage(new Message(message, kind, null, loc2));
}
} else {
messageHandler.handleMessage(new Message(message, kind, null, loc2));
}
}
public void setCrossReferenceHandler(ICrossReferenceHandler xrefHandler) {
this.xrefHandler = xrefHandler;
}
/**
* Get the cross-reference handler for the world, may be null.
*/
public ICrossReferenceHandler getCrossReferenceHandler() {
return xrefHandler;
}
public void setTypeVariableLookupScope(TypeVariableDeclaringElement scope) {
typeVariableLookupScope = scope;
}
public TypeVariableDeclaringElement getTypeVariableLookupScope() {
return typeVariableLookupScope;
}
public List getDeclareParents() {
return crosscuttingMembersSet.getDeclareParents();
}
public List getDeclareAnnotationOnTypes() {
return crosscuttingMembersSet.getDeclareAnnotationOnTypes();
}
public List getDeclareAnnotationOnFields() {
return crosscuttingMembersSet.getDeclareAnnotationOnFields();
}
public List getDeclareAnnotationOnMethods() {
return crosscuttingMembersSet.getDeclareAnnotationOnMethods();
}
public List getDeclareSoft() {
return crosscuttingMembersSet.getDeclareSofts();
}
public CrosscuttingMembersSet getCrosscuttingMembersSet() {
return crosscuttingMembersSet;
}
public IStructureModel getModel() {
return model;
}
public void setModel(IStructureModel model) {
this.model = model;
}
public Lint getLint() {
return lint;
}
public void setLint(Lint lint) {
this.lint = lint;
}
public boolean isXnoInline() {
return XnoInline;
}
public void setXnoInline(boolean xnoInline) {
XnoInline = xnoInline;
}
public boolean isXlazyTjp() {
return XlazyTjp;
}
public void setXlazyTjp(boolean b) {
XlazyTjp = b;
}
public boolean isHasMemberSupportEnabled() {
return XhasMember;
}
public void setXHasMemberSupportEnabled(boolean b) {
XhasMember = b;
}
public boolean isInPinpointMode() {
return Xpinpoint;
}
public void setPinpointMode(boolean b) {
Xpinpoint = b;
}
public void setBehaveInJava5Way(boolean b) {
behaveInJava5Way = b;
}
/**
* Set the error and warning threashold which can be taken from CompilerOptions (see bug 129282)
*
* @param errorThreshold
* @param warningThreshold
*/
public void setErrorAndWarningThreshold(long errorThreshold, long warningThreshold) {
this.errorThreshold = errorThreshold;
this.warningThreshold = warningThreshold;
}
/**
* @return true if ignoring the UnusedDeclaredThrownException and false if this compiler option is set to error or warning
*/
public boolean isIgnoringUnusedDeclaredThrownException() {
// the 0x800000 is CompilerOptions.UnusedDeclaredThrownException
// which is ASTNode.bit24
if ((errorThreshold & 0x800000) != 0 || (warningThreshold & 0x800000) != 0)
return false;
return true;
}
public void performExtraConfiguration(String config) {
if (config == null)
return;
// Bunch of name value pairs to split
extraConfiguration = new Properties();
int pos = -1;
while ((pos = config.indexOf(",")) != -1) {
String nvpair = config.substring(0, pos);
int pos2 = nvpair.indexOf("=");
if (pos2 != -1) {
String n = nvpair.substring(0, pos2);
String v = nvpair.substring(pos2 + 1);
extraConfiguration.setProperty(n, v);
}
config = config.substring(pos + 1);
}
if (config.length() > 0) {
int pos2 = config.indexOf("=");
if (pos2 != -1) {
String n = config.substring(0, pos2);
String v = config.substring(pos2 + 1);
extraConfiguration.setProperty(n, v);
}
}
ensureAdvancedConfigurationProcessed();
}
/**
* may return null
*/
public Properties getExtraConfiguration() {
return extraConfiguration;
}
public final static String xsetWEAVE_JAVA_PACKAGES = "weaveJavaPackages"; // default
// false
// -
// controls
// LTW
public final static String xsetWEAVE_JAVAX_PACKAGES = "weaveJavaxPackages"; // default
// false
// -
// controls
// LTW
public final static String xsetCAPTURE_ALL_CONTEXT = "captureAllContext"; // default
// false
public final static String xsetRUN_MINIMAL_MEMORY = "runMinimalMemory"; // default
// true
public final static String xsetDEBUG_STRUCTURAL_CHANGES_CODE = "debugStructuralChangesCode"; // default
// false
public final static String xsetDEBUG_BRIDGING = "debugBridging"; // default
// false
public final static String xsetBCEL_REPOSITORY_CACHING = "bcelRepositoryCaching";
public final static String xsetPIPELINE_COMPILATION = "pipelineCompilation";
public final static String xsetGENERATE_STACKMAPS = "generateStackMaps";
public final static String xsetPIPELINE_COMPILATION_DEFAULT = "true";
public final static String xsetCOMPLETE_BINARY_TYPES = "completeBinaryTypes";
public final static String xsetCOMPLETE_BINARY_TYPES_DEFAULT = "false";
public final static String xsetBCEL_REPOSITORY_CACHING_DEFAULT = "true";
public final static String xsetFAST_PACK_METHODS = "fastPackMethods"; // default
// TRUE
public boolean isInJava5Mode() {
return behaveInJava5Way;
}
public void setTargetAspectjRuntimeLevel(String s) {
targetAspectjRuntimeLevel = s;
}
public void setOptionalJoinpoints(String jps) {
if (jps == null)
return;
if (jps.indexOf("arrayconstruction") != -1)
optionalJoinpoint_ArrayConstruction = true;
if (jps.indexOf("synchronization") != -1)
optionalJoinpoint_Synchronization = true;
}
public boolean isJoinpointArrayConstructionEnabled() {
return optionalJoinpoint_ArrayConstruction;
}
public boolean isJoinpointSynchronizationEnabled() {
return optionalJoinpoint_Synchronization;
}
public String getTargetAspectjRuntimeLevel() {
return targetAspectjRuntimeLevel;
}
// OPTIMIZE are users falling foul of not supplying -1.5 and so targetting
// the old runtime?
public boolean isTargettingAspectJRuntime12() {
boolean b = false; // pr116679
if (!isInJava5Mode())
b = true;
else
b = getTargetAspectjRuntimeLevel().equals(org.aspectj.weaver.Constants.RUNTIME_LEVEL_12);
// System.err.println("Asked if targetting runtime 1.2 , returning: "+b);
return b;
}
/*
* Map of types in the world, can have 'references' to expendable ones which can be garbage collected to recover memory. An
* expendable type is a reference type that is not exposed to the weaver (ie just pulled in for type resolution purposes).
*/
protected static class TypeMap {
private static boolean debug = false;
// Strategy for entries in the expendable map
public final static int DONT_USE_REFS = 0; // Hang around forever
public final static int USE_WEAK_REFS = 1; // Collected asap
public final static int USE_SOFT_REFS = 2; // Collected when short on
// memory
// SECRETAPI - Can switch to a policy of choice ;)
public static int policy = USE_SOFT_REFS;
// Map of types that never get thrown away
private final Map /* String -> ResolvedType */tMap = new HashMap();
// Map of types that may be ejected from the cache if we need space
private final Map expendableMap = Collections.synchronizedMap(new WeakHashMap());
private final World w;
// profiling tools...
private boolean memoryProfiling = false;
private int maxExpendableMapSize = -1;
private int collectedTypes = 0;
private final ReferenceQueue rq = new ReferenceQueue();
private static Trace trace = TraceFactory.getTraceFactory().getTrace(World.TypeMap.class);
TypeMap(World w) {
if (trace.isTraceEnabled())
trace.enter("", this, w);
this.w = w;
memoryProfiling = false;// !w.getMessageHandler().isIgnoring(Message.
// INFO);
if (trace.isTraceEnabled())
trace.exit("");
}
/**
* Add a new type into the map, the key is the type signature. Some types do *not* go in the map, these are ones involving
* *member* type variables. The reason is that when all you have is the signature which gives you a type variable name, you
* cannot guarantee you are using the type variable in the same way as someone previously working with a similarly named
* type variable. So, these do not go into the map: - TypeVariableReferenceType. - ParameterizedType where a member type
* variable is involved. - BoundedReferenceType when one of the bounds is a type variable.
*
* definition: "member type variables" - a tvar declared on a generic method/ctor as opposed to those you see declared on a
* generic type.
*/
public ResolvedType put(String key, ResolvedType type) {
if (type.isParameterizedType() && type.isParameterizedWithTypeVariable()) {
if (debug)
System.err
.println("Not putting a parameterized type that utilises member declared type variables into the typemap: key="
+ key + " type=" + type);
return type;
}
if (type.isTypeVariableReference()) {
if (debug)
System.err.println("Not putting a type variable reference type into the typemap: key=" + key + " type=" + type);
return type;
}
// this test should be improved - only avoid putting them in if one
// of the
// bounds is a member type variable
if (type instanceof BoundedReferenceType) {
if (debug)
System.err.println("Not putting a bounded reference type into the typemap: key=" + key + " type=" + type);
return type;
}
if (type instanceof MissingResolvedTypeWithKnownSignature) {
if (debug)
System.err.println("Not putting a missing type into the typemap: key=" + key + " type=" + type);
return type;
}
if ((type instanceof ReferenceType) && (((ReferenceType) type).getDelegate() == null) && w.isExpendable(type)) {
if (debug)
System.err.println("Not putting expendable ref type with null delegate into typemap: key=" + key + " type="
+ type);
return type;
}
if (w.isExpendable(type)) {
// Dont use reference queue for tracking if not profiling...
if (policy == USE_WEAK_REFS) {
if (memoryProfiling)
expendableMap.put(key, new WeakReference(type, rq));
else
expendableMap.put(key, new WeakReference(type));
} else if (policy == USE_SOFT_REFS) {
if (memoryProfiling)
expendableMap.put(key, new SoftReference(type, rq));
else
expendableMap.put(key, new SoftReference(type));
} else {
expendableMap.put(key, type);
}
if (memoryProfiling && expendableMap.size() > maxExpendableMapSize) {
maxExpendableMapSize = expendableMap.size();
}
return type;
} else {
return (ResolvedType) tMap.put(key, type);
}
}
public void report() {
if (!memoryProfiling)
return;
checkq();
w.getMessageHandler().handleMessage(
MessageUtil.info("MEMORY: world expendable type map reached maximum size of #" + maxExpendableMapSize
+ " entries"));
w.getMessageHandler().handleMessage(
MessageUtil.info("MEMORY: types collected through garbage collection #" + collectedTypes + " entries"));
}
public void checkq() {
if (!memoryProfiling)
return;
while (rq.poll() != null)
collectedTypes++;
}
/**
* Lookup a type by its signature, always look in the real map before the expendable map
*/
public ResolvedType get(String key) {
checkq();
ResolvedType ret = (ResolvedType) tMap.get(key);
if (ret == null) {
if (policy == USE_WEAK_REFS) {
WeakReference ref = (WeakReference) expendableMap.get(key);
if (ref != null) {
ret = (ResolvedType) ref.get();
}
} else if (policy == USE_SOFT_REFS) {
SoftReference ref = (SoftReference) expendableMap.get(key);
if (ref != null) {
ret = (ResolvedType) ref.get();
}
} else {
return (ResolvedType) expendableMap.get(key);
}
}
return ret;
}
/** Remove a type from the map */
public ResolvedType remove(String key) {
ResolvedType ret = (ResolvedType) tMap.remove(key);
if (ret == null) {
if (policy == USE_WEAK_REFS) {
WeakReference wref = (WeakReference) expendableMap.remove(key);
if (wref != null)
ret = (ResolvedType) wref.get();
} else if (policy == USE_SOFT_REFS) {
SoftReference wref = (SoftReference) expendableMap.remove(key);
if (wref != null)
ret = (ResolvedType) wref.get();
} else {
ret = (ResolvedType) expendableMap.remove(key);
}
}
return ret;
}
// public ResolvedType[] getAllTypes() {
// List/* ResolvedType */results = new ArrayList();
//
// collectTypes(expendableMap, results);
// collectTypes(tMap, results);
// return (ResolvedType[]) results.toArray(new
// ResolvedType[results.size()]);
// }
//
// private void collectTypes(Map map, List/* ResolvedType */results) {
// for (Iterator iterator = map.keySet().iterator();
// iterator.hasNext();) {
// String key = (String) iterator.next();
// ResolvedType type = get(key);
// if (type != null)
// results.add(type);
// else
// System.err.println("null!:" + key);
// }
// }
}
/**
* Reference types we don't intend to weave may be ejected from the cache if we need the space.
*/
protected boolean isExpendable(ResolvedType type) {
return (!type.equals(UnresolvedType.OBJECT) && (!type.isExposedToWeaver()) && (!type.isPrimitiveType()));
}
/**
* This class is used to compute and store precedence relationships between aspects.
*/
private static class AspectPrecedenceCalculator {
private final World world;
private final Map cachedResults;
public AspectPrecedenceCalculator(World forSomeWorld) {
world = forSomeWorld;
cachedResults = new HashMap();
}
/**
* Ask every declare precedence in the world to order the two aspects. If more than one declare precedence gives an
* ordering, and the orderings conflict, then that's an error.
*/
public int compareByPrecedence(ResolvedType firstAspect, ResolvedType secondAspect) {
PrecedenceCacheKey key = new PrecedenceCacheKey(firstAspect, secondAspect);
if (cachedResults.containsKey(key)) {
return ((Integer) cachedResults.get(key)).intValue();
} else {
int order = 0;
DeclarePrecedence orderer = null; // Records the declare
// precedence statement that
// gives the first ordering
for (Iterator i = world.getCrosscuttingMembersSet().getDeclareDominates().iterator(); i.hasNext();) {
DeclarePrecedence d = (DeclarePrecedence) i.next();
int thisOrder = d.compare(firstAspect, secondAspect);
if (thisOrder != 0) {
if (orderer == null)
orderer = d;
if (order != 0 && order != thisOrder) {
ISourceLocation[] isls = new ISourceLocation[2];
isls[0] = orderer.getSourceLocation();
isls[1] = d.getSourceLocation();
Message m = new Message("conflicting declare precedence orderings for aspects: "
+ firstAspect.getName() + " and " + secondAspect.getName(), null, true, isls);
world.getMessageHandler().handleMessage(m);
} else {
order = thisOrder;
}
}
}
cachedResults.put(key, new Integer(order));
return order;
}
}
public Integer getPrecedenceIfAny(ResolvedType aspect1, ResolvedType aspect2) {
return (Integer) cachedResults.get(new PrecedenceCacheKey(aspect1, aspect2));
}
public int compareByPrecedenceAndHierarchy(ResolvedType firstAspect, ResolvedType secondAspect) {
if (firstAspect.equals(secondAspect))
return 0;
int ret = compareByPrecedence(firstAspect, secondAspect);
if (ret != 0)
return ret;
if (firstAspect.isAssignableFrom(secondAspect))
return -1;
else if (secondAspect.isAssignableFrom(firstAspect))
return +1;
return 0;
}
private static class PrecedenceCacheKey {
public ResolvedType aspect1;
public ResolvedType aspect2;
public PrecedenceCacheKey(ResolvedType a1, ResolvedType a2) {
aspect1 = a1;
aspect2 = a2;
}
public boolean equals(Object obj) {
if (!(obj instanceof PrecedenceCacheKey))
return false;
PrecedenceCacheKey other = (PrecedenceCacheKey) obj;
return (aspect1 == other.aspect1 && aspect2 == other.aspect2);
}
public int hashCode() {
return aspect1.hashCode() + aspect2.hashCode();
}
}
}
public void validateType(UnresolvedType type) {
}
// --- with java5 we can get into a recursive mess if we aren't careful when
// resolving types (*cough* java.lang.Enum) ---
// --- this first map is for java15 delegates which may try and recursively
// access the same type variables.
// --- I would rather stash this against a reference type - but we don't
// guarantee referencetypes are unique for
// so we can't :(
private final Map workInProgress1 = new HashMap();
public TypeVariable[] getTypeVariablesCurrentlyBeingProcessed(Class baseClass) {
return (TypeVariable[]) workInProgress1.get(baseClass);
}
public void recordTypeVariablesCurrentlyBeingProcessed(Class baseClass, TypeVariable[] typeVariables) {
workInProgress1.put(baseClass, typeVariables);
}
public void forgetTypeVariablesCurrentlyBeingProcessed(Class baseClass) {
workInProgress1.remove(baseClass);
}
public void setAddSerialVerUID(boolean b) {
addSerialVerUID = b;
}
public boolean isAddSerialVerUID() {
return addSerialVerUID;
}
/** be careful calling this - pr152257 */
public void flush() {
typeMap.expendableMap.clear();
}
public void ensureAdvancedConfigurationProcessed() {
// Check *once* whether the user has switched asm support off
if (!checkedAdvancedConfiguration) {
Properties p = getExtraConfiguration();
if (p != null) {
String s = p.getProperty(xsetBCEL_REPOSITORY_CACHING, xsetBCEL_REPOSITORY_CACHING_DEFAULT);
bcelRepositoryCaching = s.equalsIgnoreCase("true");
if (!bcelRepositoryCaching) {
getMessageHandler().handleMessage(
MessageUtil
.info("[bcelRepositoryCaching=false] AspectJ will not use a bcel cache for class information"));
}
s = p.getProperty(xsetFAST_PACK_METHODS, "true");
fastMethodPacking = s.equalsIgnoreCase("true");
s = p.getProperty(xsetPIPELINE_COMPILATION, xsetPIPELINE_COMPILATION_DEFAULT);
shouldPipelineCompilation = s.equalsIgnoreCase("true");
s = p.getProperty(xsetGENERATE_STACKMAPS, "false");
shouldGenerateStackMaps = s.equalsIgnoreCase("true");
s = p.getProperty(xsetCOMPLETE_BINARY_TYPES, xsetCOMPLETE_BINARY_TYPES_DEFAULT);
completeBinaryTypes = s.equalsIgnoreCase("true");
if (completeBinaryTypes) {
getMessageHandler().handleMessage(
MessageUtil.info("[completeBinaryTypes=true] Completion of binary types activated"));
}
s = p.getProperty(xsetRUN_MINIMAL_MEMORY, "false");
runMinimalMemory = s.equalsIgnoreCase("true");
// if (runMinimalMemory)
// getMessageHandler().handleMessage(MessageUtil.info(
// "[runMinimalMemory=true] Optimizing bcel processing (and cost of performance) to use less memory"
// ));
s = p.getProperty(xsetDEBUG_STRUCTURAL_CHANGES_CODE, "false");
forDEBUG_structuralChangesCode = s.equalsIgnoreCase("true");
s = p.getProperty(xsetDEBUG_BRIDGING, "false");
forDEBUG_bridgingCode = s.equalsIgnoreCase("true");
}
checkedAdvancedConfiguration = true;
}
}
public boolean isRunMinimalMemory() {
ensureAdvancedConfigurationProcessed();
return runMinimalMemory;
}
public boolean shouldFastPackMethods() {
ensureAdvancedConfigurationProcessed();
return fastMethodPacking;
}
public boolean shouldPipelineCompilation() {
ensureAdvancedConfigurationProcessed();
return shouldPipelineCompilation;
}
public boolean shouldGenerateStackMaps() {
ensureAdvancedConfigurationProcessed();
return shouldGenerateStackMaps;
}
public void setIncrementalCompileCouldFollow(boolean b) {
incrementalCompileCouldFollow = b;
}
public boolean couldIncrementalCompileFollow() {
return incrementalCompileCouldFollow;
}
public void setSynchronizationPointcutsInUse() {
if (trace.isTraceEnabled())
trace.enter("setSynchronizationPointcutsInUse", this);
synchronizationPointcutsInUse = true;
if (trace.isTraceEnabled())
trace.exit("setSynchronizationPointcutsInUse");
}
public boolean areSynchronizationPointcutsInUse() {
return synchronizationPointcutsInUse;
}
/**
* Register a new pointcut designator handler with the world - this can be used by any pointcut parsers attached to the world.
*
* @param designatorHandler handler for the new pointcut
*/
public void registerPointcutHandler(PointcutDesignatorHandler designatorHandler) {
if (pointcutDesignators == null)
pointcutDesignators = new HashSet();
pointcutDesignators.add(designatorHandler);
}
public Set getRegisteredPointcutHandlers() {
if (pointcutDesignators == null)
return Collections.EMPTY_SET;
return pointcutDesignators;
}
public void reportMatch(ShadowMunger munger, Shadow shadow) {
}
public void reportCheckerMatch(Checker checker, Shadow shadow) {
}
/**
* @return true if this world has the activation and scope of application of the aspects controlled via aop.xml files
*/
public boolean isXmlConfigured() {
return false;
}
public boolean isAspectIncluded(ResolvedType aspectType) {
return true;
}
public TypePattern getAspectScope(ResolvedType declaringType) {
return null;
}
}
