Examples of org.aspectj.weaver.patterns.Pointcut$State

org.aspectj.weaver.patterns.Pointcut
The lifecycle of Pointcuts is modeled by Pointcut.State. It has three things:
Creation -- SYMBOLIC -- then resolve(IScope) -- RESOLVED -- concretize(...) -- CONCRETE @author Erik Hilsdale @author Jim HuguninA day in the life of a pointcut.... - AMC. ========================================== Pointcuts are created by the PatternParser, which is called by ajdt to parse a pointcut from the PseudoTokens AST node (which in turn are part of a PointcutDesignator AST node). Pointcuts are resolved by ajdt when an AdviceDeclaration or a PointcutDeclaration has its statements resolved. This happens as part of completeTypeBindings in the AjLookupEnvironment which is called after the diet parse phase of the compiler. Named pointcuts, and references to named pointcuts are instances of ReferencePointcut. At the end of the compilation process, the pointcuts are serialized (write method) into attributes in the class file. When the weaver loads the class files, it unpacks the attributes and deserializes the pointcuts (read). All aspects are added to the world, by calling addOrReplaceAspect on the crosscutting members set of the world. When aspects are added or replaced, the crosscutting members in the aspect are extracted as ShadowMungers (each holding a pointcut). The ShadowMungers are concretized, which concretizes the pointcuts. At this stage ReferencePointcuts are replaced by their declared content. During weaving, the weaver processes type by type. It first culls potentially matching ShadowMungers by calling the fastMatch method on their pointcuts. Only those that might match make it through to the next phase. At the next phase, all of the shadows within the type are created and passed to the pointcut for matching (match). When the actual munging happens, matched pointcuts are asked for their residue (findResidue) - the runtime test if any. Because of negation, findResidue may be called on pointcuts that could never match the shadow.

    boolean containsIfPcd = false;
    int[] pcLocation = new int[2];
    String pointcutExpression = getStringLiteralFor("value", ajAnnotations.pointcutAnnotation, pcLocation);
    try {
      ISourceContext context = new EclipseSourceContext(unit.compilationResult, pcLocation[0]);
      Pointcut pc = null;// abstract
      if (pointcutExpression == null || pointcutExpression.length() == 0) {
        noValueSupplied = true; // matches nothing pointcut
      } else {
        noValueSupplied = false;
        pc = new PatternParser(pointcutExpression, context).parsePointcut();
      }
      pcDecl.pointcutDesignator = (pc == null) ? null : new PointcutDesignator(pc);
      pcDecl.setGenerateSyntheticPointcutMethod();
      TypeDeclaration onType = (TypeDeclaration) typeStack.peek();
      pcDecl.postParse(onType);
      // EclipseFactory factory =
      // EclipseFactory.fromScopeLookupEnvironment
      // (methodDeclaration.scope);
      // int argsLength = methodDeclaration.arguments == null ? 0 :
      // methodDeclaration.arguments.length;
      FormalBinding[] bindings = buildFormalAdviceBindingsFrom(methodDeclaration);
      // FormalBinding[] bindings = new FormalBinding[argsLength];
      // for (int i = 0, len = bindings.length; i < len; i++) {
      // Argument arg = methodDeclaration.arguments[i];
      // String name = new String(arg.name);
      // UnresolvedType type =
      // factory.fromBinding(methodDeclaration.binding.parameters[i]);
      // bindings[i] = new FormalBinding(type, name, i, arg.sourceStart,
      // arg.sourceEnd, "unknown");
      // }
      swap(onType, methodDeclaration, pcDecl);
      if (pc != null) {
        // has an expression
        EclipseScope eScope = new EclipseScope(bindings, methodDeclaration.scope);
        char[] packageName = null;
        if (typeDecl.binding != null && typeDecl.binding.getPackage() != null) {
          packageName = typeDecl.binding.getPackage().readableName();
        }
        eScope.setLimitedImports(packageName);
        pc.resolve(eScope);
        HasIfPCDVisitor ifFinder = new HasIfPCDVisitor();
        pc.traverse(ifFinder, null);
        containsIfPcd = ifFinder.containsIfPcd;
      }
    } catch (ParserException pEx) {
      methodDeclaration.scope.problemReporter().parseError(pcLocation[0] + pEx.getLocation().getStart(),
          pcLocation[0] + pEx.getLocation().getEnd(), -1, pointcutExpression.toCharArray(), pointcutExpression,

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        for (Iterator it = attributes.iterator(); it.hasNext();) {
            AjAttribute attr = (AjAttribute) it.next();
            if (attr instanceof AjAttribute.PointcutDeclarationAttribute) {
                AjAttribute.PointcutDeclarationAttribute pcAttr = (AjAttribute.PointcutDeclarationAttribute) attr;
                Pointcut pointcut = pcAttr.reify().getPointcut();
                if (pointcut instanceof KindedPointcut) {
                    try {
                        Field sigField = KindedPointcut.class.getDeclaredField("signature");
                        sigField.setAccessible(true);
                        SignaturePattern signature = (SignaturePattern) sigField.get(pointcut);
                        DefinitionParserHelper.createAndAddPointcutDefToAspectDef(
                                signature.getName().toString(), pointcut.toString(), aspectDef
                        );
                    } catch (Exception e) {
                        throw new WrappedRuntimeException(e);
                    }
                }

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    UnresolvedType[] argumentTypes = new UnresolvedType[struct.method.getArgumentTypes().length];
    for (int i = 0; i < argumentTypes.length; i++) {
      argumentTypes[i] = UnresolvedType.forSignature(struct.method.getArgumentTypes()[i].getSignature());
    }


    Pointcut pc = null;
    if (struct.method.isAbstract()) {
      if ((pointcutExpr != null && isNullOrEmpty(pointcutExpr.getValue().stringifyValue())) || pointcutExpr == null) {
        // abstract pointcut
        // leave pc = null
      } else {
        reportError("Found defined @Pointcut on an abstract method", struct);
        return false;// stop
      }
    } else {
      if (pointcutExpr == null || isNullOrEmpty(pointcutExpr.getValue().stringifyValue())) {
        // the matches nothing pointcut (125475/125480) - perhaps not as
        // cleanly supported as it could be.
      } else {
        // if (pointcutExpr != null) {
        // use a LazyResolvedPointcutDefinition so that the pointcut is
        // resolved lazily
        // since for it to be resolved, we will need other pointcuts to
        // be registered as well
        pc = parsePointcut(pointcutExpr.getValue().stringifyValue(), struct, true);
        if (pc == null) {
          return false;// parse error
        }
        pc.setLocation(struct.context, -1, -1);// FIXME AVASM !! bMethod
        // is null here..
        // } else {
        // reportError("Found undefined @Pointcut on a non-abstract method",
        // struct);
        // return false;

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      if (declareError != null) {
        if (!STRING_DESC.equals(struct.field.getSignature()) || struct.field.getConstantValue() == null) {
          reportError("@DeclareError used on a non String constant field", struct);
          return false;
        }
        Pointcut pc = parsePointcut(declareError.getValue().stringifyValue(), struct, false);
        if (pc == null) {
          hasError = false;// cannot parse pointcut
        } else {
          DeclareErrorOrWarning deow = new DeclareErrorOrWarning(true, pc, struct.field.getConstantValue().toString());
          setDeclareErrorOrWarningLocation(model, deow, struct);
          struct.ajAttributes.add(new AjAttribute.DeclareAttribute(deow));
          hasError = true;
        }
      }
    }
    AnnotationGen warning = getAnnotation(runtimeAnnotations, AjcMemberMaker.DECLAREWARNING_ANNOTATION);
    boolean hasWarning = false;
    if (warning != null) {
      NameValuePair declareWarning = getAnnotationElement(warning, VALUE);
      if (declareWarning != null) {
        if (!STRING_DESC.equals(struct.field.getSignature()) || struct.field.getConstantValue() == null) {
          reportError("@DeclareWarning used on a non String constant field", struct);
          return false;
        }
        Pointcut pc = parsePointcut(declareWarning.getValue().stringifyValue(), struct, false);
        if (pc == null) {
          hasWarning = false;// cannot parse pointcut
        } else {
          DeclareErrorOrWarning deow = new DeclareErrorOrWarning(false, pc, struct.field.getConstantValue().toString());
          setDeclareErrorOrWarningLocation(model, deow, struct);

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   * @return pointcut, unresolved
   */
  private static Pointcut parsePointcut(String pointcutString, AjAttributeStruct struct, boolean allowIf) {
    try {
      PatternParser parser = new PatternParser(pointcutString, struct.context);
      Pointcut pointcut = parser.parsePointcut();
      parser.checkEof();
      pointcut.check(null, struct.enclosingType.getWorld());
      if (!allowIf && pointcutString.indexOf("if()") >= 0 && hasIf(pointcut)) {
        reportError("if() pointcut is not allowed at this pointcut location '" + pointcutString + "'", struct);
        return null;
      }
      pointcut.setLocation(struct.context, -1, -1);// FIXME -1,-1 is not
      // good enough
      return pointcut;
    } catch (ParserException e) {
      reportError("Invalid pointcut '" + pointcutString + "': " + e.toString()
          + (e.getLocation() == null ? "" : " at position " + e.getLocation().getStart()), struct);

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   * @param struct for which we are parsing the per clause
   * @return a PerClause instance
   */
  private static PerClause parsePerClausePointcut(String perClauseString, AjAttributeStruct struct) {
    final String pointcutString;
    Pointcut pointcut = null;
    TypePattern typePattern = null;
    final PerClause perClause;
    if (perClauseString.startsWith(PerClause.KindAnnotationPrefix.PERCFLOW.getName())) {
      pointcutString = PerClause.KindAnnotationPrefix.PERCFLOW.extractPointcut(perClauseString);
      pointcut = parsePointcut(pointcutString, struct, false);

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        IScope binding = new BindingScope(struct.enclosingType, struct.context, bindings);


        // joinpoint, staticJoinpoint binding
        int extraArgument = extractExtraArgument(struct.method);


        Pointcut pc = null;
        if (preResolvedPointcut != null) {
          pc = preResolvedPointcut.getPointcut();
          // pc.resolve(binding);
        } else {
          pc = parsePointcut(beforeAdvice.getValue().stringifyValue(), struct, false);
          if (pc == null) {
            return false;// parse error
          }
          pc = pc.resolve(binding);
        }
        setIgnoreUnboundBindingNames(pc, bindings);


        ISourceLocation sl = struct.context.makeSourceLocation(struct.bMethod.getDeclarationLineNumber(),
            struct.bMethod.getDeclarationOffset());

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        IScope binding = new BindingScope(struct.enclosingType, struct.context, bindings);


        // joinpoint, staticJoinpoint binding
        int extraArgument = extractExtraArgument(struct.method);


        Pointcut pc = null;
        if (preResolvedPointcut != null) {
          pc = preResolvedPointcut.getPointcut();
        } else {
          pc = parsePointcut(afterAdvice.getValue().stringifyValue(), struct, false);
          if (pc == null) {
            return false;// parse error
          }
          pc.resolve(binding);
        }
        setIgnoreUnboundBindingNames(pc, bindings);


        ISourceLocation sl = struct.context.makeSourceLocation(struct.bMethod.getDeclarationLineNumber(),
            struct.bMethod.getDeclarationOffset());

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      // return binding
      if (returned != null) {
        extraArgument |= Advice.ExtraArgument;
      }


      Pointcut pc = null;
      if (preResolvedPointcut != null) {
        pc = preResolvedPointcut.getPointcut();
      } else {
        pc = parsePointcut(pointcut, struct, false);
        if (pc == null) {
          return false;// parse error
        }
        pc.resolve(binding);
      }
      setIgnoreUnboundBindingNames(pc, bindings);


      ISourceLocation sl = struct.context.makeSourceLocation(struct.bMethod.getDeclarationLineNumber(),
          struct.bMethod.getDeclarationOffset());

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      // return binding
      if (thrownFormal != null) {
        extraArgument |= Advice.ExtraArgument;
      }


      Pointcut pc = null;
      if (preResolvedPointcut != null) {
        pc = preResolvedPointcut.getPointcut();
      } else {
        pc = parsePointcut(pointcut, struct, false);
        if (pc == null) {
          return false;// parse error
        }
        pc.resolve(binding);
      }
      setIgnoreUnboundBindingNames(pc, bindings);


      ISourceLocation sl = struct.context.makeSourceLocation(struct.bMethod.getDeclarationLineNumber(),
          struct.bMethod.getDeclarationOffset());

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