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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.lang.reflect.Modifier;
- import java.util.ArrayList;
- import java.util.Collection;
- import java.util.List;
- import java.util.Map;
-
- import org.aspectj.util.FuzzyBoolean;
- import org.aspectj.weaver.Advice;
- import org.aspectj.weaver.AjcMemberMaker;
- import org.aspectj.weaver.CompressingDataOutputStream;
- import org.aspectj.weaver.CrosscuttingMembers;
- import org.aspectj.weaver.ISourceContext;
- import org.aspectj.weaver.Member;
- import org.aspectj.weaver.NameMangler;
- import org.aspectj.weaver.ResolvedMemberImpl;
- import org.aspectj.weaver.ResolvedType;
- import org.aspectj.weaver.Shadow;
- import org.aspectj.weaver.ShadowMunger;
- 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.Test;
-
- public class PerCflow extends PerClause {
- private final boolean isBelow;
- private final Pointcut entry;
-
- public PerCflow(Pointcut entry, boolean isBelow) {
- this.entry = entry;
- this.isBelow = isBelow;
- }
-
- // -----
-
- 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.MAYBE;
- }
-
- protected FuzzyBoolean matchInternal(Shadow shadow) {
- return FuzzyBoolean.YES;
- }
-
- public void resolveBindings(IScope scope, Bindings bindings) {
- // assert bindings == null;
- entry.resolve(scope);
- }
-
- public Pointcut parameterizeWith(Map<String,UnresolvedType> typeVariableMap, World w) {
- PerCflow ret = new PerCflow(entry.parameterizeWith(typeVariableMap, w), isBelow);
- ret.copyLocationFrom(this);
- return ret;
- }
-
- protected Test findResidueInternal(Shadow shadow, ExposedState state) {
- Expr myInstance = Expr.makeCallExpr(AjcMemberMaker.perCflowAspectOfMethod(inAspect), Expr.NONE, inAspect);
- state.setAspectInstance(myInstance);
- return Test.makeCall(AjcMemberMaker.perCflowHasAspectMethod(inAspect), Expr.NONE);
- }
-
- public PerClause concretize(ResolvedType inAspect) {
- PerCflow ret = new PerCflow(entry, isBelow);
- ret.inAspect = inAspect;
- if (inAspect.isAbstract()) {
- return ret;
- }
-
- Member cflowStackField = new ResolvedMemberImpl(Member.FIELD, inAspect, Modifier.STATIC | Modifier.PUBLIC | Modifier.FINAL,
- UnresolvedType.forName(NameMangler.CFLOW_STACK_TYPE), NameMangler.PERCFLOW_FIELD_NAME, UnresolvedType.NONE);
-
- World world = inAspect.getWorld();
-
- CrosscuttingMembers xcut = inAspect.crosscuttingMembers;
-
- Collection<ShadowMunger> previousCflowEntries = xcut.getCflowEntries();
- Pointcut concreteEntry = entry.concretize(inAspect, inAspect, 0, null); // IntMap
- // .
- // EMPTY
- // )
- // ;
- List<ShadowMunger> innerCflowEntries = new ArrayList<ShadowMunger>(xcut.getCflowEntries());
- innerCflowEntries.removeAll(previousCflowEntries);
-
- xcut.addConcreteShadowMunger(Advice.makePerCflowEntry(world, concreteEntry, isBelow, cflowStackField, inAspect,
- innerCflowEntries));
-
- // ATAJ: add a munger to add the aspectOf(..) to the @AJ aspects
- if (inAspect.isAnnotationStyleAspect() && !inAspect.isAbstract()) {
- inAspect.crosscuttingMembers.addLateTypeMunger(inAspect.getWorld().getWeavingSupport()
- .makePerClauseAspect(inAspect, getKind()));
- }
-
- // ATAJ inline around advice support - don't use a late munger to allow
- // around inling for itself
- if (inAspect.isAnnotationStyleAspect() && !inAspect.getWorld().isXnoInline()) {
- inAspect.crosscuttingMembers.addTypeMunger(inAspect.getWorld().getWeavingSupport()
- .createAccessForInlineMunger(inAspect));
- }
-
- return ret;
- }
-
- public void write(CompressingDataOutputStream s) throws IOException {
- PERCFLOW.write(s);
- entry.write(s);
- s.writeBoolean(isBelow);
- writeLocation(s);
- }
-
- public static PerClause readPerClause(VersionedDataInputStream s, ISourceContext context) throws IOException {
- PerCflow ret = new PerCflow(Pointcut.read(s, context), s.readBoolean());
- ret.readLocation(context, s);
- return ret;
- }
-
- public PerClause.Kind getKind() {
- return PERCFLOW;
- }
-
- public Pointcut getEntry() {
- return entry;
- }
-
- public String toString() {
- return "percflow(" + inAspect + " on " + entry + ")";
- }
-
- public String toDeclarationString() {
- if (isBelow) {
- return "percflowbelow(" + entry + ")";
- }
- return "percflow(" + entry + ")";
- }
-
- public boolean equals(Object other) {
- if (!(other instanceof PerCflow)) {
- return false;
- }
- PerCflow pc = (PerCflow) other;
- return (pc.isBelow && isBelow) && ((pc.inAspect == null) ? (inAspect == null) : pc.inAspect.equals(inAspect))
- && ((pc.entry == null) ? (entry == null) : pc.entry.equals(entry));
- }
-
- public int hashCode() {
- int result = 17;
- result = 37 * result + (isBelow ? 0 : 1);
- result = 37 * result + ((inAspect == null) ? 0 : inAspect.hashCode());
- result = 37 * result + ((entry == null) ? 0 : entry.hashCode());
- return result;
- }
-
- }
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