List of usage examples for org.eclipse.jdt.internal.core CompilationUnit getElementAt
@Override public IJavaElement getElementAt(int position) throws JavaModelException
From source file:org.eclipse.ajdt.core.parserbridge.AJCompilationUnitProblemFinder.java
License:Open Source License
public static boolean isARealProblem(CategorizedProblem categorizedProblem, CompilationUnit unit, AJProjectModelFacade model, boolean hasModel, boolean isJavaFileInAJEditor) { int numArgs = categorizedProblem.getArguments() == null ? 0 : categorizedProblem.getArguments().length; String firstArg = numArgs > 0 ? categorizedProblem.getArguments()[0] : null; String secondArg = numArgs > 1 ? categorizedProblem.getArguments()[1] : null; int id = categorizedProblem.getID(); if (!hasModel && (id == IProblem.UndefinedType || id == IProblem.UndefinedName || id == IProblem.UnresolvedVariable || // AJDT 3.6 id == IProblem.UndefinedField || id == IProblem.UndefinedMethod || id == IProblem.UndefinedConstructor || id == IProblem.IllegalCast || id == IProblem.AbstractMethodMustBeImplemented) // anonymous interface with ITDs implementing abstract method ) {/*from w ww. j a va 2 s .co m*/ // if there is no model, don't take any chances. // everything that might be an ITD reference is ignored return false; } if (categorizedProblem.getSourceStart() == 0) { // a place for all problems that don't have source locations // because they come from ITDs return false; } if (numArgs > 0 && id == IProblem.UndefinedMethod && (extraAspectMethods.contains(firstArg)) || extraAspectMethods.contains(secondArg)) { // probably hasAspect or aspectOf return false; } if (numArgs > 1 && (id == IProblem.DuplicateField || id == IProblem.DuplicateMethod) && (aspectMemberNames.contains(firstArg) || aspectMemberNames.contains(secondArg)) || declareAnnotationKinds.contains(firstArg) || declareAnnotationKinds.contains(secondArg)) { // declare statement if more than one exist in a file // or around advice if more than one of the same kind exists in the aspect return false; } if (numArgs > 1 && id == IProblem.DuplicateMethod && isTranslatedAdviceName(firstArg, secondArg)) { // more than one before or after advice exists // in same file with same number and types of arguments // as per bug 318132, before and after names are translated // to 'b' and 'a' respectively return false; } if (numArgs == 0 && id == IProblem.MissingReturnType) { // ITD constructors don't have return types // check the name to see if there is a $ in it String problemRegion = extractProblemRegion(categorizedProblem, unit); if (problemRegion.indexOf("$") != -1) { return false; } String[] parts = problemRegion.split("\\("); String name = parts[0].trim(); if (aspectMemberNames.contains(name)) { // advice---before or after return false; } } if (numArgs == 0 && id == IProblem.InvalidExplicitConstructorCall) { // ITD constructor making explicit this() call. // lots of potential for false negatives return false; } if (numArgs == 0 && id == IProblem.MethodRequiresBody) { // Likely to be a pointcut definition return false; } if (numArgs == 2 && id == IProblem.ParsingErrorInsertToComplete && firstArg.equals(";") && secondArg.equals("FieldDeclaration")) { // might be a declare statement String problemRegion = extractProblemRegion(categorizedProblem, unit); if (aspectMemberNames.contains(problemRegion)) { return false; } } // this one is not used any more since the '@' is being removed from the text // if (numArgs == 1 && // id == IProblem.ParsingErrorDeleteToken && // firstArg.equals("@")) { // // likely to be declare annotation declaration // // declare @type, declare @constructor, declare @method, declare @field // String problemRegion = extractNextJavaIdentifier(unit, categorizedProblem.getSourceEnd()); // if (declareAnnotationKinds.contains(problemRegion)) { // return false; // } // } if (numArgs == 1 && id == IProblem.UndefinedType && declareAnnotationKinds.contains(firstArg)) { // alternate error of declare annotations return false; } if (numArgs == 1 && id == IProblem.UndefinedType && firstArg.equals("declare")) { // from a declare declaration return false; } if (numArgs == 1 && id == IProblem.UndefinedType && firstArg.equals("pointcut")) { // from a pointcut declaration return false; } if (numArgs > 0 && (id == IProblem.UndefinedName || id == IProblem.UnresolvedVariable || // AJDT 3.6 id == IProblem.UndefinedField || id == IProblem.UndefinedMethod || id == IProblem.UndefinedType || id == IProblem.UndefinedConstructor) && isITDName(categorizedProblem, unit, model, isJavaFileInAJEditor)) { // a reference inside an aspect to an ITD that it declares return false; } if (hasModel && id == IProblem.ShouldReturnValue && categorizedProblem.getSourceStart() == 0 && categorizedProblem.getSourceEnd() == 0) { // from an inserted ITD that has already been removed // this problem comes because the bodies of the ITDs inserted by ITDInserter // are always empty even when there should be a return value return false; } if (hasModel && (id == IProblem.NotVisibleType || id == IProblem.MethodReducesVisibility) && categorizedProblem.getSourceStart() == 0) { // declare parents type that is not visible by current // type. this is fine as long as it is visible // in the scope of the declare parents declaration. return false; } if ((id == IProblem.NotVisibleConstructor || id == IProblem.NotVisibleField || id == IProblem.NotVisibleMethod || id == IProblem.NotVisibleType) && isPrivilegedAspect(categorizedProblem, unit, isJavaFileInAJEditor)) { // a privileged aspect should be able to see all private/protected members return false; } try { if (numArgs > 1 && id == IProblem.DuplicateMethod && simpleNamesEquals(firstArg, secondArg)) { // bug 280385 // no arg constructor ITD when the target type // has an implicit no arg constructor IJavaElement elt = unit.getElementAt(categorizedProblem.getSourceStart()); // here, check to see if the method name is the same as the // type name. If so, then look for the default constructor, // if none exists, then we can ignore this problem if (elt.getElementType() == IJavaElement.TYPE) { IType type = (IType) elt; if (type.getElementName().equals(firstArg)) { IMethod method = type.getMethod(type.getElementName(), new String[0]); if (!method.exists()) { return false; } } } } if (id == IProblem.ReturnTypeMismatch && numArgs == 2 && typeAtPositionIsArg(categorizedProblem, unit, firstArg)) { if (findLastSegment(getITDTargetType(categorizedProblem, unit, isJavaFileInAJEditor)) .equals(findLastSegment(secondArg))) { // bug 284358 // this problem occurs when 'this' is returned from an ITD method // the resolver thinks there is a type mismath because it was // expecting the aspect type (argument 1) instead of the ITD type // (argument 2) return false; } if (insideITD(categorizedProblem, unit, isJavaFileInAJEditor) && isThisExpression(categorizedProblem, unit)) { // Bug 361170 // Likely a this expresion that is casted to a super type of the ITD return false; } } if (numArgs > 0 && (id == IProblem.UndefinedMethod || id == IProblem.UndefinedName || id == IProblem.UnresolvedVariable) && // AJDT 3.6 (adviceBodyNames.contains(firstArg) || adviceBodyNames.contains(secondArg)) && insideAdvice(categorizedProblem, unit)) { // proceed/thisJoinPoint... statement return false; } if (numArgs == 1 && (id == IProblem.ParsingErrorDeleteToken || id == IProblem.ParsingErrorDeleteTokens) && aspectMemberNames.contains(firstArg) && insideITD(categorizedProblem, unit, isJavaFileInAJEditor)) { // the implements or extends clause of a declare statement return false; } if (id == IProblem.ParameterMismatch && insideITD(categorizedProblem, unit, isJavaFileInAJEditor)) { // Probably a reference to 'this' inside an ITD // compiler thinks 'this' refers to the containing aspect // not the target type return false; } if (id == IProblem.AbstractMethodInAbstractClass && insideITD(categorizedProblem, unit, isJavaFileInAJEditor)) { // an abstract method ITD inside a concrete aspect // ITDs are allowed to be abstract if the target // type is an abstract class, but problem finder does not know this return false; } if (id == IProblem.IllegalAbstractModifierCombinationForMethod && insideITD(categorizedProblem, unit, isJavaFileInAJEditor)) { // private abstract itd in aspect return false; } if (id == IProblem.UnusedPrivateField && (insideITD(categorizedProblem, unit, isJavaFileInAJEditor) || getITDNames(unit, model).size() > 0)) { // private itd is said to be unused, even if it is really used elsewhere // also, if this type has some ITDs, then we really don't know if it is used in the // ITDs, so just be safe and ignore this problem return false; } if (numArgs > 0 && (id == IProblem.UndefinedName || id == IProblem.UnresolvedVariable || // AJDT 3.6 id == IProblem.UndefinedField || id == IProblem.UndefinedMethod || id == IProblem.UndefinedType || id == IProblem.UndefinedConstructor) && insideITD(categorizedProblem, unit, isJavaFileInAJEditor)) { // likely to be a reference inside an ITD to a name in the target type // also will erroneously filter out truly undefined names return false; } if (numArgs > 0 && (id == IProblem.UndefinedType || id == IProblem.InternalTypeNameProvided) && firstArg.indexOf('$') != -1) { // based on previous test, we are not inside of an ITD, // so we may be defining a field or variable with a // type of an inner class using a '.'. // the AspectsConvertingParser converts this '.' into a '$' // ignore. return false; } if (id == IProblem.NonStaticAccessToStaticField && isITDName(categorizedProblem, unit, model, isJavaFileInAJEditor)) { // this is a reference to an ITD field on an interface // compiler thinks that all fields in interfaces are static final return false; } if ((id == IProblem.UnhandledException || id == IProblem.UnhandledExceptionInImplicitConstructorCall || id == IProblem.UnhandledExceptionInDefaultConstructor) && (!model.hasModel() || isSoftened(categorizedProblem, unit, model, isJavaFileInAJEditor))) { return false; } if (id == IProblem.UninitializedBlankFinalField && unit.getElementAt(categorizedProblem.getSourceStart()) == null) { // likely to be inserted dummy fields for organize imports // this only happens when the last declaration is an interface // these dummy fields are implicitly converted to public static final return false; } if (id == IProblem.AbstractMethodsInConcreteClass && isAspect(categorizedProblem, unit, isJavaFileInAJEditor)) { /* AJDT 1.7 */ // an aspect that has an abstract ITD will have this problem // in this case it is a spurious problem. Filter it // unfortunately, this also means filtering real problems // where concrete aspects have abstract methods // new for 1.7 return false; } if (id == IProblem.JavadocMissingReturnTag && insidePointcut(categorizedProblem, unit)) { // pointcuts are parsed as methods with 'pointcut' // as the return type // when JavaDoc checking is set, the parser thinks that // 'pointcut' should have its own javadoc tag return false; } if (numArgs == 1 && id == IProblem.ShouldReturnValue && firstArg.equals("int") && insideAdvice(categorizedProblem, unit)) { // Bug 318132: after keyword is changed to 'int a' to avoid throwing exceptions while // evaluating variables during debug return false; } if ((id == IProblem.InvalidTypeForCollection || id == IProblem.InvalidTypeForCollectionTarget14 || id == IProblem.IncompatibleTypesInConditionalOperator || id == IProblem.IllegalCast) && insideITD(categorizedProblem, unit, isJavaFileInAJEditor) && // I wish there were a more precise way of doing this. Need to // look for a 'this' expression. extractProblemRegion(categorizedProblem, unit).contains("this")) { // Bug 347021 // a 'this' expression in an ITD refers to the target type, not the aspect. // these problems here indicate that the aspect type is being used instead // of the target type. return false; } } catch (JavaModelException e) { } if (id == IProblem.AbstractMethodMustBeImplemented && isITDName(categorizedProblem, unit, model, isJavaFileInAJEditor)) { // a type implements an interface with an ITD method on it return false; } if (id == IProblem.AbstractMethodMustBeImplemented && (!hasModel || isAbstractITD(categorizedProblem, model, unit, isJavaFileInAJEditor))) { // this one is very tricky and rare. // there is a abstract method ITD defined on a supertype // since this type was altered using AspectConvertingParser, // the implementation of this abstract method is not necessarily there return false; } return true; }
From source file:org.eclipse.ajdt.core.parserbridge.AJCompilationUnitProblemFinder.java
License:Open Source License
private static String getTypeNameAtPosition(CategorizedProblem categorizedProblem, CompilationUnit unit) throws JavaModelException { IJavaElement elt = unit.getElementAt(categorizedProblem.getSourceStart()); IType type = elt != null ? (IType) elt.getAncestor(IJavaElement.TYPE) : null; if (type == null) { // just return the name of the CU int dotIndex = unit.getElementName().indexOf('.'); if (dotIndex > 0) { return unit.getElementName().substring(0, dotIndex); } else {/*ww w. j av a 2s .co m*/ return unit.getElementName(); } } return type.getElementName(); }
From source file:org.eclipse.ajdt.core.parserbridge.AJCompilationUnitProblemFinder.java
License:Open Source License
private static boolean insideAdvice(CategorizedProblem categorizedProblem, CompilationUnit unit) throws JavaModelException { IJavaElement candidate = unit.getElementAt(categorizedProblem.getSourceStart()); while (candidate != null && !(candidate instanceof ICompilationUnit)) { if (candidate instanceof AdviceElement) { return true; }/*w ww .j av a 2s. c o m*/ candidate = candidate.getParent(); } return false; }
From source file:org.eclipse.ajdt.core.parserbridge.AJCompilationUnitProblemFinder.java
License:Open Source License
private static boolean insidePointcut(CategorizedProblem categorizedProblem, CompilationUnit unit) throws JavaModelException { IJavaElement candidate = unit.getElementAt(categorizedProblem.getSourceStart()); while (candidate != null && !(candidate instanceof ICompilationUnit)) { if (candidate instanceof PointcutElement) { return true; }/*from ww w. j a va 2 s . c om*/ candidate = candidate.getParent(); } return false; }
From source file:org.eclipse.ajdt.core.parserbridge.AJCompilationUnitProblemFinder.java
License:Open Source License
private static boolean isSoftened(CategorizedProblem problem, CompilationUnit unit, AJProjectModelFacade model, boolean isJavaFileInAJEditor) throws JavaModelException { if (isJavaFileInAJEditor) { // we don't know...be safe and // let compiler do the errors return true; }//w w w . j av a 2 s . co m IJavaElement elt = unit.getElementAt(problem.getSourceStart()); List softens = model.getRelationshipsForElement(elt, AJRelationshipManager.SOFTENED_BY, true); return softens.size() > 0; }
From source file:org.eclipse.ajdt.core.parserbridge.AJCompilationUnitProblemFinder.java
License:Open Source License
private static boolean isAspect(CategorizedProblem problem, CompilationUnit unit, boolean isJavaFileInAJEditor) { if (isJavaFileInAJEditor) { // we don't know...be safe and // let compiler do the errors return true; }/* ww w .j a va 2 s .c o m*/ if (unit instanceof AJCompilationUnit) { try { IJavaElement elt = unit.getElementAt(problem.getSourceStart()); if (elt != null) { IType type = (IType) elt.getAncestor(IJavaElement.TYPE); return type != null && type instanceof AspectElement; } } catch (JavaModelException e) { } } return false; }
From source file:org.eclipse.ajdt.core.parserbridge.AJCompilationUnitProblemFinder.java
License:Open Source License
private static boolean isPrivilegedAspect(CategorizedProblem problem, CompilationUnit unit, boolean isJavaFileInAJEditor) { if (isJavaFileInAJEditor) { // we don't know...be safe and // let compiler do the errors return true; }/* ww w . j a v a 2s.c om*/ if (unit instanceof AJCompilationUnit) { try { IJavaElement elt = unit.getElementAt(problem.getSourceStart()); if (elt != null) { IType type = (IType) elt.getAncestor(IJavaElement.TYPE); if (type != null && type instanceof AspectElement) { AspectElement aspectType = (AspectElement) type; return aspectType.isPrivileged(); } } } catch (JavaModelException e) { } } return false; }
From source file:org.eclipse.ajdt.core.parserbridge.AJCompilationUnitProblemFinder.java
License:Open Source License
private static boolean insideITD(CategorizedProblem categorizedProblem, CompilationUnit unit, boolean isJavaFileInAJEditor) throws JavaModelException { if (isJavaFileInAJEditor) { // we don't know...be safe and // let compiler do the errors return true; }/* w w w. jav a 2 s. c o m*/ IJavaElement elementAt = unit.getElementAt(categorizedProblem.getSourceStart()); return elementAt instanceof IntertypeElement || elementAt instanceof DeclareElement; }
From source file:org.eclipse.ajdt.core.parserbridge.AJCompilationUnitProblemFinder.java
License:Open Source License
private static String getITDTargetType(CategorizedProblem categorizedProblem, CompilationUnit unit, boolean isJavaFileInAJEditor) throws JavaModelException { if (isJavaFileInAJEditor) { // we don't know...be safe and // let compiler do the errors return ""; }//from www. j a v a2 s . c om IJavaElement elementAt = unit.getElementAt(categorizedProblem.getSourceStart()); if (elementAt instanceof IntertypeElement) { IntertypeElement itd = (IntertypeElement) elementAt; return new String(itd.getTargetType()); } return ""; }