public static boolean isInside(PsiElement place, PsiElement ancestor) { if (SafeDeleteProcessor.isInside(place, ancestor)) return true; if (PsiTreeUtil.getParentOfType(place, PsiComment.class, false) != null && ancestor instanceof PsiClass) { final PsiClass aClass = (PsiClass) ancestor; if (aClass.getParent() instanceof PsiJavaFile) { final PsiJavaFile file = (PsiJavaFile) aClass.getParent(); if (PsiTreeUtil.isAncestor(file, place, false)) { if (file.getClasses().length == 1) { // file will be deleted on class deletion return true; } } } } return false; }
@Nullable public UsageInfo[] preprocessUsages(final Project project, final UsageInfo[] usages) { final ArrayList<UsageInfo> result = new ArrayList<>(); final ArrayList<UsageInfo> overridingMethods = new ArrayList<>(); final ArrayList<SafeDeleteParameterCallHierarchyUsageInfo> delegatingParams = new ArrayList<>(); final ArrayList<SafeDeleteMethodCalleeUsageInfo> calleesSafeToDelete = new ArrayList<>(); for (UsageInfo usage : usages) { if (usage.isNonCodeUsage) { result.add(usage); } else if (usage instanceof SafeDeleteMethodCalleeUsageInfo) { calleesSafeToDelete.add((SafeDeleteMethodCalleeUsageInfo) usage); } else if (usage instanceof SafeDeleteOverridingMethodUsageInfo) { overridingMethods.add(usage); } else if (usage instanceof SafeDeleteParameterCallHierarchyUsageInfo) { delegatingParams.add((SafeDeleteParameterCallHierarchyUsageInfo) usage); } else if (usage instanceof SafeDeleteAnnotation) { result.add( new SafeDeleteAnnotation( (PsiAnnotation) usage.getElement(), ((SafeDeleteAnnotation) usage).getReferencedElement(), true)); } else { result.add(usage); } } if (!overridingMethods.isEmpty()) { if (ApplicationManager.getApplication().isUnitTestMode()) { result.addAll(overridingMethods); } else { OverridingMethodsDialog dialog = new OverridingMethodsDialog(project, overridingMethods); if (!dialog.showAndGet()) { return null; } final ArrayList<UsageInfo> selected = dialog.getSelected(); final Set<UsageInfo> unselected = new HashSet<>(overridingMethods); unselected.removeAll(selected); if (!unselected.isEmpty()) { final List<PsiMethod> unselectedMethods = ContainerUtil.map( unselected, info -> ((SafeDeleteOverridingMethodUsageInfo) info).getOverridingMethod()); for (Iterator<UsageInfo> iterator = result.iterator(); iterator.hasNext(); ) { final UsageInfo info = iterator.next(); if (info instanceof SafeDeleteOverrideAnnotation && !allSuperMethodsSelectedToDelete( unselectedMethods, ((SafeDeleteOverrideAnnotation) info).getMethod())) { iterator.remove(); } } } result.addAll(selected); } } if (!delegatingParams.isEmpty()) { final SafeDeleteParameterCallHierarchyUsageInfo parameterHierarchyUsageInfo = delegatingParams.get(0); if (ApplicationManager.getApplication().isUnitTestMode()) { result.addAll(delegatingParams); } else { final PsiMethod method = parameterHierarchyUsageInfo.getCalledMethod(); final PsiParameter parameter = parameterHierarchyUsageInfo.getReferencedElement(); final int parameterIndex = method.getParameterList().getParameterIndex(parameter); final JavaCallerChooser chooser = new SafeDeleteJavaCallerChooser(method, project, result) { @Override protected ArrayList<SafeDeleteParameterCallHierarchyUsageInfo> getTopLevelItems() { return delegatingParams; } @Override protected int getParameterIdx() { return parameterIndex; } }; TreeUtil.expand(chooser.getTree(), 2); if (!chooser.showAndGet()) { return null; } } } if (!calleesSafeToDelete.isEmpty()) { if (ApplicationManager.getApplication().isUnitTestMode()) { result.addAll(calleesSafeToDelete); } else { final PsiMethod method = calleesSafeToDelete.get(0).getCallerMethod(); final ArrayList<UsageInfo> list = new ArrayList<>(); JavaCallerChooser chooser = new SafeDeleteJavaCalleeChooser(method, project, list) { @Override protected ArrayList<SafeDeleteMethodCalleeUsageInfo> getTopLevelItems() { return calleesSafeToDelete; } }; TreeUtil.expand(chooser.getTree(), 2); if (!chooser.showAndGet()) { return null; } result.addAll(list); final List<PsiElement> methodsToDelete = new ArrayList<>(); for (UsageInfo info : list) { methodsToDelete.add(info.getElement()); } methodsToDelete.add(method); final Condition<PsiElement> insideDeletedCondition = getUsageInsideDeletedFilter( methodsToDelete.toArray(new PsiElement[methodsToDelete.size()])); for (UsageInfo info : list) { SafeDeleteProcessor.addNonCodeUsages( info.getElement(), result, insideDeletedCondition, JavaRefactoringSettings.getInstance().RENAME_SEARCH_FOR_TEXT_FOR_METHOD, JavaRefactoringSettings.getInstance().RENAME_SEARCH_IN_COMMENTS_FOR_METHOD); } } } return result.toArray(new UsageInfo[result.size()]); }