Exemplo n.º 1
0
  @Override
  @Nullable
  public CommonProblemDescriptor[] checkElement(
      @NotNull final RefEntity refEntity,
      @NotNull final AnalysisScope scope,
      @NotNull final InspectionManager manager,
      @NotNull final GlobalInspectionContext globalContext,
      @NotNull final ProblemDescriptionsProcessor processor) {
    if (refEntity instanceof RefJavaElement) {
      final RefJavaElement refElement = (RefJavaElement) refEntity;
      if (refElement instanceof RefParameter) return null;
      if (!refElement.isReferenced()) return null;
      if (refElement.isSyntheticJSP()) return null;
      if (refElement.isFinal()) return null;
      if (!((RefElementImpl) refElement).checkFlag(CanBeFinalAnnotator.CAN_BE_FINAL_MASK))
        return null;

      final PsiMember psiMember = (PsiMember) refElement.getElement();
      if (psiMember == null || !CanBeFinalHandler.allowToBeFinal(psiMember)) return null;

      PsiIdentifier psiIdentifier = null;
      if (refElement instanceof RefClass) {
        RefClass refClass = (RefClass) refElement;
        if (refClass.isInterface() || refClass.isAnonymous() || refClass.isAbstract()) return null;
        if (!isReportClasses()) return null;
        psiIdentifier = ((PsiClass) psiMember).getNameIdentifier();
      } else if (refElement instanceof RefMethod) {
        RefMethod refMethod = (RefMethod) refElement;
        if (refMethod.getOwnerClass().isFinal()) return null;
        if (!isReportMethods()) return null;
        psiIdentifier = ((PsiMethod) psiMember).getNameIdentifier();
      } else if (refElement instanceof RefField) {
        if (!isReportFields()) return null;
        psiIdentifier = ((PsiField) psiMember).getNameIdentifier();
      }

      if (psiIdentifier != null) {
        return new ProblemDescriptor[] {
          manager.createProblemDescriptor(
              psiIdentifier,
              InspectionsBundle.message("inspection.export.results.can.be.final.description"),
              new AcceptSuggested(globalContext.getRefManager()),
              ProblemHighlightType.GENERIC_ERROR_OR_WARNING,
              false)
        };
      }
    }
    return null;
  }
  @Nullable
  public CommonProblemDescriptor[] checkElement(
      final RefEntity refEntity,
      final AnalysisScope scope,
      final InspectionManager manager,
      final GlobalInspectionContext globalContext,
      final ProblemDescriptionsProcessor processor) {
    if (refEntity instanceof RefMethod) {
      final RefMethod refMethod = (RefMethod) refEntity;

      if (refMethod.isSyntheticJSP()) return null;

      if (refMethod.isExternalOverride()) return null;

      if (!(refMethod.isStatic() || refMethod.isConstructor())
          && !refMethod.getSuperMethods().isEmpty()) return null;

      if ((refMethod.isAbstract() || refMethod.getOwnerClass().isInterface())
          && refMethod.getDerivedMethods().isEmpty()) return null;

      if (RefUtil.isEntryPoint(refMethod)) return null;

      if (refMethod.isAppMain()) return null;

      final ArrayList<RefParameter> unusedParameters = getUnusedParameters(refMethod);

      if (unusedParameters.isEmpty()) return null;

      final List<ProblemDescriptor> result = new ArrayList<ProblemDescriptor>();
      for (RefParameter refParameter : unusedParameters) {
        final PsiIdentifier psiIdentifier = refParameter.getElement().getNameIdentifier();
        if (psiIdentifier != null) {
          result.add(
              manager.createProblemDescriptor(
                  psiIdentifier,
                  refMethod.isAbstract()
                      ? InspectionsBundle.message("inspection.unused.parameter.composer")
                      : InspectionsBundle.message("inspection.unused.parameter.composer1"),
                  new AcceptSuggested(
                      globalContext.getRefManager(), processor, refParameter.toString()),
                  ProblemHighlightType.LIKE_UNUSED_SYMBOL,
                  false));
        }
      }
      return result.toArray(new CommonProblemDescriptor[result.size()]);
    }
    return null;
  }
  @Override
  public CommonProblemDescriptor[] checkElement(
      @NotNull RefEntity refEntity,
      @NotNull AnalysisScope scope,
      @NotNull final InspectionManager manager,
      @NotNull final GlobalInspectionContext globalContext) {
    if (refEntity instanceof RefMethod) {
      RefMethod refMethod = (RefMethod) refEntity;
      if (!refMethod.isReferenced()) return null;
      if (hasNonInvertedCalls(refMethod)) return null;
      if (!refMethod.getSuperMethods().isEmpty()) return null;
      final PsiMethod psiMethod = (PsiMethod) refMethod.getElement();
      final PsiIdentifier psiIdentifier = psiMethod.getNameIdentifier();
      if (psiIdentifier != null) {
        final Collection<RefElement> inReferences = refMethod.getInReferences();
        if (inReferences.size() == 1) {
          final RefElement refElement = inReferences.iterator().next();
          final PsiElement usagesContainer = refElement.getElement();
          if (usagesContainer == null) return null;
          if (ReferencesSearch.search(psiMethod, new LocalSearchScope(usagesContainer))
              .forEach(
                  new Processor<PsiReference>() {
                    private final Set<PsiReference> myFoundRefs = new HashSet<>();

                    @Override
                    public boolean process(PsiReference reference) {
                      myFoundRefs.add(reference);
                      return myFoundRefs.size() < 2;
                    }
                  })) return null;
        }
        return new ProblemDescriptor[] {
          manager.createProblemDescriptor(
              psiIdentifier,
              InspectionsBundle.message("boolean.method.is.always.inverted.problem.descriptor"),
              (LocalQuickFix) getQuickFix(null),
              ProblemHighlightType.GENERIC_ERROR_OR_WARNING,
              false)
        };
      }
    }
    return null;
  }
  @Nullable
  public CommonProblemDescriptor[] checkElement(
      RefEntity refEntity,
      AnalysisScope scope,
      InspectionManager manager,
      GlobalInspectionContext globalContext,
      ProblemDescriptionsProcessor processor) {
    ArrayList<ProblemDescriptor> problems = null;
    if (refEntity instanceof RefMethod) {
      final RefMethod refMethod = (RefMethod) refEntity;

      if (refMethod.hasSuperMethods()) return null;

      if (refMethod.isEntry()) return null;

      RefParameter[] parameters = refMethod.getParameters();
      for (RefParameter refParameter : parameters) {
        String value = refParameter.getActualValueIfSame();
        if (value != null) {
          if (problems == null) problems = new ArrayList<ProblemDescriptor>(1);
          final String paramName = refParameter.getName();
          problems.add(
              manager.createProblemDescriptor(
                  refParameter.getElement(),
                  InspectionsBundle.message(
                      "inspection.same.parameter.problem.descriptor",
                      "<code>" + paramName + "</code>",
                      "<code>" + value + "</code>"),
                  new InlineParameterValueFix(paramName, value),
                  ProblemHighlightType.GENERIC_ERROR_OR_WARNING,
                  false));
        }
      }
    }

    return problems == null ? null : problems.toArray(new CommonProblemDescriptor[problems.size()]);
  }
  @Override
  @Nullable
  public CommonProblemDescriptor[] checkElement(
      @NotNull final RefEntity refEntity,
      @NotNull final AnalysisScope scope,
      @NotNull final InspectionManager manager,
      @NotNull final GlobalInspectionContext globalContext,
      @NotNull final ProblemDescriptionsProcessor processor) {
    if (refEntity instanceof RefJavaElement) {
      final RefJavaElement refElement = (RefJavaElement) refEntity;

      if (refElement instanceof RefParameter) return null;
      if (refElement.isSyntheticJSP()) return null;

      // ignore entry points.
      if (refElement.isEntry()) return null;

      // ignore implicit constructors. User should not be able to see them.
      if (refElement instanceof RefImplicitConstructor) return null;

      if (refElement instanceof RefField
          && ((RefField) refElement).getElement() instanceof PsiEnumConstant) return null;

      // ignore library override methods.
      if (refElement instanceof RefMethod) {
        RefMethod refMethod = (RefMethod) refElement;
        if (refMethod.isExternalOverride()) return null;
        if (refMethod.isEntry()) return null;
      }

      // ignore anonymous classes. They do not have access modifiers.
      if (refElement instanceof RefClass) {
        RefClass refClass = (RefClass) refElement;
        if (refClass.isAnonymous()
            || refClass.isEntry()
            || refClass.isTestCase()
            || refClass.isServlet()
            || refClass.isApplet()
            || refClass.isLocalClass()) return null;
        if (isTopLevelClass(refClass) && !SUGGEST_PACKAGE_LOCAL_FOR_TOP_CLASSES) return null;
      }

      // ignore unreferenced code. They could be a potential entry points.
      if (refElement.getInReferences().isEmpty()) return null;

      // ignore interface members. They always have public access modifier.
      if (refElement.getOwner() instanceof RefClass) {
        RefClass refClass = (RefClass) refElement.getOwner();
        if (refClass.isInterface()) return null;
      }
      String access = getPossibleAccess(refElement);
      if (access != refElement.getAccessModifier() && access != null) {
        final PsiElement element = refElement.getElement();
        final PsiElement nameIdentifier =
            element != null ? HighlightUsagesHandler.getNameIdentifier(element) : null;
        if (nameIdentifier != null) {
          return new ProblemDescriptor[] {
            manager.createProblemDescriptor(
                nameIdentifier,
                access.equals(PsiModifier.PRIVATE)
                    ? CAN_BE_PRIVATE
                    : access.equals(PsiModifier.PACKAGE_LOCAL)
                        ? CAN_BE_PACKAGE_LOCAL
                        : CAN_BE_PROTECTED,
                new AcceptSuggestedAccess(globalContext.getRefManager(), access),
                ProblemHighlightType.GENERIC_ERROR_OR_WARNING,
                false)
          };
        }
      }
    }
    return null;
  }