@NotNull
  protected UsageInfo[] findUsages() {
    final PsiManager manager = myMethod.getManager();
    final GlobalSearchScope searchScope = GlobalSearchScope.allScope(manager.getProject());
    final List<UsageInfo> usages = new ArrayList<UsageInfo>();
    for (PsiReference ref : ReferencesSearch.search(myMethod, searchScope, false)) {
      final PsiElement element = ref.getElement();
      if (element instanceof PsiReferenceExpression) {
        boolean isInternal = PsiTreeUtil.isAncestor(myMethod, element, true);
        usages.add(new MethodCallUsageInfo((PsiReferenceExpression) element, isInternal));
      } else if (element instanceof PsiDocTagValue) {
        usages.add(new JavadocUsageInfo(((PsiDocTagValue) element)));
      } else {
        throw new UnknownReferenceTypeException(element.getLanguage());
      }
    }

    if (myTargetClass.isInterface()) {
      addInheritorUsages(myTargetClass, searchScope, usages);
    }

    final PsiCodeBlock body = myMethod.getBody();
    if (body != null) {
      body.accept(
          new JavaRecursiveElementWalkingVisitor() {
            @Override
            public void visitNewExpression(PsiNewExpression expression) {
              if (MoveInstanceMembersUtil.getClassReferencedByThis(expression) != null) {
                usages.add(new InternalUsageInfo(expression));
              }
              super.visitNewExpression(expression);
            }

            @Override
            public void visitReferenceExpression(PsiReferenceExpression expression) {
              if (MoveInstanceMembersUtil.getClassReferencedByThis(expression) != null) {
                usages.add(new InternalUsageInfo(expression));
              } else if (!expression.isQualified()) {
                final PsiElement resolved = expression.resolve();
                if (myTargetVariable.equals(resolved)) {
                  usages.add(new InternalUsageInfo(expression));
                }
              }

              super.visitReferenceExpression(expression);
            }
          });
    }

    return usages.toArray(new UsageInfo[usages.size()]);
  }
  @NotNull
  protected UsageInfo[] findUsages() {
    ArrayList<UsageInfo> result = new ArrayList<UsageInfo>();

    PsiMethod[] overridingMethods =
        OverridingMethodsSearch.search(myMethodToSearchFor, true).toArray(PsiMethod.EMPTY_ARRAY);
    for (PsiMethod overridingMethod : overridingMethods) {
      result.add(new UsageInfo(overridingMethod));
    }
    if (!myGenerateDelegate) {
      PsiReference[] refs =
          MethodReferencesSearch.search(
                  myMethodToSearchFor, GlobalSearchScope.projectScope(myProject), true)
              .toArray(PsiReference.EMPTY_ARRAY);

      for (PsiReference ref1 : refs) {
        PsiElement ref = ref1.getElement();
        if (ref instanceof PsiMethod && ((PsiMethod) ref).isConstructor()) {
          DefaultConstructorImplicitUsageInfo implicitUsageInfo =
              new DefaultConstructorImplicitUsageInfo(
                  (PsiMethod) ref, ((PsiMethod) ref).getContainingClass(), myMethodToSearchFor);
          result.add(implicitUsageInfo);
        } else if (ref instanceof PsiClass) {
          result.add(new NoConstructorClassUsageInfo((PsiClass) ref));
        } else if (!IntroduceParameterUtil.insideMethodToBeReplaced(ref, myMethodToReplaceIn)) {
          result.add(new ExternalUsageInfo(ref));
        } else {
          result.add(new ChangedMethodCallInfo(ref));
        }
      }
    }

    if (myReplaceAllOccurences) {
      for (PsiElement expr : getOccurrences()) {
        result.add(new InternalUsageInfo(expr));
      }
    } else {
      if (myExpressionToSearch != null && myExpressionToSearch.isValid()) {
        result.add(new InternalUsageInfo(myExpressionToSearch));
      }
    }

    final UsageInfo[] usageInfos = result.toArray(new UsageInfo[result.size()]);
    return UsageViewUtil.removeDuplicatedUsages(usageInfos);
  }
  @NotNull
  public static UsageInfo[] findUsages(
      final PsiElement element,
      final String newName,
      boolean searchInStringsAndComments,
      boolean searchForTextOccurrences,
      Map<? extends PsiElement, String> allRenames) {
    final List<UsageInfo> result = Collections.synchronizedList(new ArrayList<UsageInfo>());

    PsiManager manager = element.getManager();
    GlobalSearchScope projectScope = GlobalSearchScope.projectScope(manager.getProject());
    RenamePsiElementProcessor processor = RenamePsiElementProcessor.forElement(element);

    Collection<PsiReference> refs = processor.findReferences(element, searchInStringsAndComments);
    for (final PsiReference ref : refs) {
      if (ref == null) {
        LOG.error("null reference from processor " + processor);
        continue;
      }
      PsiElement referenceElement = ref.getElement();
      result.add(
          new MoveRenameUsageInfo(
              referenceElement,
              ref,
              ref.getRangeInElement().getStartOffset(),
              ref.getRangeInElement().getEndOffset(),
              element,
              ref.resolve() == null));
    }

    processor.findCollisions(element, newName, allRenames, result);

    final PsiElement searchForInComments =
        processor.getElementToSearchInStringsAndComments(element);

    if (searchInStringsAndComments && searchForInComments != null) {
      String stringToSearch =
          ElementDescriptionUtil.getElementDescription(
              searchForInComments, NonCodeSearchDescriptionLocation.STRINGS_AND_COMMENTS);
      if (stringToSearch.length() > 0) {
        final String stringToReplace = getStringToReplace(element, newName, false, processor);
        TextOccurrencesUtil.UsageInfoFactory factory =
            new NonCodeUsageInfoFactory(searchForInComments, stringToReplace);
        TextOccurrencesUtil.addUsagesInStringsAndComments(
            searchForInComments, stringToSearch, result, factory);
      }
    }

    if (searchForTextOccurrences && searchForInComments != null) {
      String stringToSearch =
          ElementDescriptionUtil.getElementDescription(
              searchForInComments, NonCodeSearchDescriptionLocation.NON_JAVA);
      if (stringToSearch.length() > 0) {
        final String stringToReplace = getStringToReplace(element, newName, true, processor);
        addTextOccurrence(
            searchForInComments, result, projectScope, stringToSearch, stringToReplace);
      }

      final Pair<String, String> additionalStringToSearch =
          processor.getTextOccurrenceSearchStrings(searchForInComments, newName);
      if (additionalStringToSearch != null && additionalStringToSearch.first.length() > 0) {
        addTextOccurrence(
            searchForInComments,
            result,
            projectScope,
            additionalStringToSearch.first,
            additionalStringToSearch.second);
      }
    }

    return result.toArray(new UsageInfo[result.size()]);
  }