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- /* *******************************************************************
- * Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
- * All rights reserved.
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * PARC initial implementation
- * ******************************************************************/
-
- package org.aspectj.weaver.patterns;
-
- import java.io.IOException;
- import java.util.Map;
-
- import org.aspectj.util.FuzzyBoolean;
- import org.aspectj.weaver.AjcMemberMaker;
- import org.aspectj.weaver.CompressingDataOutputStream;
- import org.aspectj.weaver.ISourceContext;
- import org.aspectj.weaver.ResolvedMember;
- import org.aspectj.weaver.ResolvedType;
- import org.aspectj.weaver.Shadow;
- import org.aspectj.weaver.UnresolvedType;
- import org.aspectj.weaver.VersionedDataInputStream;
- import org.aspectj.weaver.World;
- import org.aspectj.weaver.ast.Expr;
- import org.aspectj.weaver.ast.Literal;
- import org.aspectj.weaver.ast.Test;
-
- public class PerSingleton extends PerClause {
-
- private ResolvedMember perSingletonAspectOfMethod;
-
- public PerSingleton() {
- }
-
- public Object accept(PatternNodeVisitor visitor, Object data) {
- return visitor.visit(this, data);
- }
-
- public int couldMatchKinds() {
- return Shadow.ALL_SHADOW_KINDS_BITS;
- }
-
- public FuzzyBoolean fastMatch(FastMatchInfo type) {
- return FuzzyBoolean.YES;
- }
-
- protected FuzzyBoolean matchInternal(Shadow shadow) {
- return FuzzyBoolean.YES;
- }
-
- public void resolveBindings(IScope scope, Bindings bindings) {
- // this method intentionally left blank
- }
-
- public Pointcut parameterizeWith(Map<String,UnresolvedType> typeVariableMap, World w) {
- return this;
- }
-
- public Test findResidueInternal(Shadow shadow, ExposedState state) {
- // TODO: the commented code is for slow Aspects.aspectOf() style - keep
- // or remove
- //
- // Expr myInstance =
- // Expr.makeCallExpr(AjcMemberMaker.perSingletonAspectOfMethod(inAspect),
- // Expr.NONE, inAspect);
- //
- // state.setAspectInstance(myInstance);
- //
- // // we have no test
- // // a NoAspectBoundException will be thrown if we need an instance of
- // this
- // // aspect before we are bound
- // return Literal.TRUE;
- // if (!Ajc5MemberMaker.isSlowAspect(inAspect)) {
- if (perSingletonAspectOfMethod == null) {
- // Build this just once
- perSingletonAspectOfMethod = AjcMemberMaker.perSingletonAspectOfMethod(inAspect);
- }
- Expr myInstance = Expr.makeCallExpr(perSingletonAspectOfMethod, Expr.NONE, inAspect);
-
- state.setAspectInstance(myInstance);
-
- // we have no test
- // a NoAspectBoundException will be thrown if we need an instance of
- // this
- // aspect before we are bound
- return Literal.TRUE;
- // } else {
- // CallExpr callAspectOf =Expr.makeCallExpr(
- // Ajc5MemberMaker.perSingletonAspectOfMethod(inAspect),
- // new Expr[]{
- // Expr.makeStringConstantExpr(inAspect.getName(), inAspect),
- // //FieldGet is using ResolvedType and I don't need that here
- // new FieldGetOn(Member.ajClassField, shadow.getEnclosingType())
- // },
- // inAspect
- // );
- // Expr castedCallAspectOf = new CastExpr(callAspectOf,
- // inAspect.getName());
- // state.setAspectInstance(castedCallAspectOf);
- // return Literal.TRUE;
- // }
- }
-
- public PerClause concretize(ResolvedType inAspect) {
- PerSingleton ret = new PerSingleton();
-
- ret.copyLocationFrom(this);
-
- World world = inAspect.getWorld();
-
- ret.inAspect = inAspect;
-
- // ATAJ: add a munger to add the aspectOf(..) to the @AJ aspects
- if (inAspect.isAnnotationStyleAspect() && !inAspect.isAbstract()) {
- // TODO will those change be ok if we add a serializable aspect ?
- // dig:
- // "can't be Serializable/Cloneable unless -XserializableAspects"
- if (getKind() == SINGLETON) { // pr149560
- inAspect.crosscuttingMembers.addTypeMunger(world.getWeavingSupport().makePerClauseAspect(inAspect, getKind()));
- } else {
- inAspect.crosscuttingMembers.addLateTypeMunger(world.getWeavingSupport().makePerClauseAspect(inAspect, getKind()));
- }
- }
-
- // ATAJ inline around advice support
- if (inAspect.isAnnotationStyleAspect() && !inAspect.getWorld().isXnoInline()) {
- inAspect.crosscuttingMembers.addTypeMunger(world.getWeavingSupport().createAccessForInlineMunger(inAspect));
- }
-
- return ret;
- }
-
- public void write(CompressingDataOutputStream s) throws IOException {
- SINGLETON.write(s);
- writeLocation(s);
- }
-
- public static PerClause readPerClause(VersionedDataInputStream s, ISourceContext context) throws IOException {
- PerSingleton ret = new PerSingleton();
- ret.readLocation(context, s);
- return ret;
- }
-
- public PerClause.Kind getKind() {
- return SINGLETON;
- }
-
- public String toString() {
- return "persingleton(" + inAspect + ")";
- }
-
- public String toDeclarationString() {
- return "";
- }
-
- public boolean equals(Object other) {
- if (!(other instanceof PerSingleton)) {
- return false;
- }
- PerSingleton pc = (PerSingleton) other;
- return ((pc.inAspect == null) ? (inAspect == null) : pc.inAspect.equals(inAspect));
- }
-
- public int hashCode() {
- int result = 17;
- result = 37 * result + ((inAspect == null) ? 0 : inAspect.hashCode());
- return result;
- }
-
- }
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