public static boolean proveExtendsBoundsDistinct(
PsiType type1, PsiType type2, PsiClass boundClass1, PsiClass boundClass2) {
if (boundClass1.isInterface() && boundClass2.isInterface()) return false;
if (boundClass1.isInterface()) {
return !(boundClass2.hasModifierProperty(PsiModifier.FINAL)
? InheritanceUtil.isInheritorOrSelf(boundClass2, boundClass1, true)
: true);
}
if (boundClass2.isInterface()) {
return !(boundClass1.hasModifierProperty(PsiModifier.FINAL)
? InheritanceUtil.isInheritorOrSelf(boundClass1, boundClass2, true)
: true);
}
if (boundClass1 instanceof PsiTypeParameter) {
return try2ProveTypeParameterDistinct(type2, boundClass1);
}
if (boundClass2 instanceof PsiTypeParameter) {
return try2ProveTypeParameterDistinct(type1, boundClass2);
}
return !InheritanceUtil.isInheritorOrSelf(boundClass1, boundClass2, true)
&& !InheritanceUtil.isInheritorOrSelf(boundClass2, boundClass1, true);
}
private boolean checkAccessibility(final PsiClass aClass) {
// We don't care about accessibility in javadoc
if (JavaResolveUtil.isInJavaDoc(myPlace)) {
return true;
}
if (PsiImplUtil.isInServerPage(aClass.getContainingFile())) {
PsiFile file = FileContextUtil.getContextFile(myPlace);
if (PsiImplUtil.isInServerPage(file)) {
return true;
}
}
boolean accessible = true;
if (aClass instanceof PsiTypeParameter) {
accessible = !myStaticContext;
}
PsiManager manager = aClass.getManager();
if (aClass.hasModifierProperty(PsiModifier.PRIVATE)) {
PsiElement parent = aClass.getParent();
while (true) {
PsiElement parentScope = parent.getParent();
if (parentScope instanceof PsiJavaFile) break;
parent = parentScope;
if (!(parentScope instanceof PsiClass)) break;
}
if (parent instanceof PsiDeclarationStatement) {
parent = parent.getParent();
}
accessible = false;
for (PsiElement placeParent = myPlace;
placeParent != null;
placeParent = placeParent.getContext()) {
if (manager.areElementsEquivalent(placeParent, parent)) accessible = true;
}
}
final JavaPsiFacade facade = JavaPsiFacade.getInstance(manager.getProject());
if (aClass.hasModifierProperty(PsiModifier.PROTECTED)) {
accessible = false;
if (myPlace != null && facade.arePackagesTheSame(aClass, myPlace)) {
accessible = true;
} else {
if (aClass.getContainingClass() != null) {
accessible =
myAccessClass == null
|| myPlace != null
&& facade.getResolveHelper().isAccessible(aClass, myPlace, myAccessClass);
}
}
}
if (aClass.hasModifierProperty(PsiModifier.PACKAGE_LOCAL)) {
if (myPlace == null || !facade.arePackagesTheSame(aClass, myPlace)) {
accessible = false;
}
}
return accessible;
}
public static boolean nameCanBeImported(@NotNull String fqName, @NotNull PsiElement context) {
final PsiClass containingClass = PsiTreeUtil.getParentOfType(context, PsiClass.class);
if (containingClass != null) {
if (fqName.equals(containingClass.getQualifiedName())) {
return true;
}
final String shortName = ClassUtil.extractClassName(fqName);
final PsiClass[] innerClasses = containingClass.getAllInnerClasses();
for (PsiClass innerClass : innerClasses) {
if (innerClass.hasModifierProperty(PsiModifier.PRIVATE)) {
continue;
}
if (innerClass.hasModifierProperty(PsiModifier.PACKAGE_LOCAL)) {
if (!ClassUtils.inSamePackage(innerClass, containingClass)) {
continue;
}
}
final String className = innerClass.getName();
if (shortName.equals(className)) {
return false;
}
}
PsiField field = containingClass.findFieldByName(shortName, false);
if (field != null) {
return false;
}
field = containingClass.findFieldByName(shortName, true);
if (field != null
&& PsiUtil.isAccessible(containingClass.getProject(), field, containingClass, null)) {
return false;
}
}
final PsiJavaFile file = PsiTreeUtil.getParentOfType(context, PsiJavaFile.class);
if (file == null) {
return false;
}
if (hasExactImportConflict(fqName, file)) {
return false;
}
if (hasOnDemandImportConflict(fqName, file, true)) {
return false;
}
if (containsConflictingReference(file, fqName)) {
return false;
}
if (containsConflictingClass(fqName, file)) {
return false;
}
return !containsConflictingClassName(fqName, file);
}
/**
* Creates a new {@link ClassElement} object.
*
* @param clazz class information.
* @return a new {@link ClassElement} object.
*/
public static ClassElement newClassElement(PsiClass clazz) {
ClassElement ce = new ClassElement();
// name
ce.setName(clazz.getName());
ce.setQualifiedName(clazz.getQualifiedName());
// super
PsiClass superClass = clazz.getSuperClass();
if (superClass != null
&& !CommonClassNames.JAVA_LANG_OBJECT.equals(superClass.getQualifiedName())) {
ce.setSuperName(superClass.getName());
}
// interfaces
ce.setImplementNames(PsiAdapter.getImplementsClassnames(clazz));
// other
ce.setEnum(clazz.isEnum());
ce.setDeprecated(clazz.isDeprecated());
ce.setException(PsiAdapter.isExceptionClass(clazz));
ce.setAbstract(clazz.hasModifierProperty(PsiModifier.ABSTRACT));
ce.setTypeParams(clazz.getTypeParameters().length);
return ce;
}
@SuppressWarnings({"HardCodedStringLiteral"})
private static JVMName getJVMSignature(
@Nullable PsiMethod method, boolean constructor, @Nullable PsiClass declaringClass) {
JVMNameBuffer signature = new JVMNameBuffer();
signature.append("(");
if (constructor) {
if (declaringClass != null) {
final PsiClass outerClass = declaringClass.getContainingClass();
if (outerClass != null) {
// declaring class is an inner class
if (!declaringClass.hasModifierProperty(PsiModifier.STATIC)) {
appendJvmClassQualifiedName(signature, getJVMQualifiedName(outerClass));
}
}
}
}
if (method != null) {
for (PsiParameter psiParameter : method.getParameterList().getParameters()) {
appendJVMSignature(signature, psiParameter.getType());
}
}
signature.append(")");
if (!constructor && method != null) {
appendJVMSignature(signature, method.getReturnType());
} else {
signature.append(new JVMRawText("V"));
}
return signature.toName();
}
private static boolean isClassAccepted(
final PsiClass clazz,
@Nullable final ClassKind classKind,
final boolean instantiatable,
final boolean concrete,
final boolean notInterface,
final boolean notEnum) {
if (classKind == ClassKind.ANNOTATION) return clazz.isAnnotationType();
if (classKind == ClassKind.ENUM) return clazz.isEnum();
if (instantiatable) {
if (PsiUtil.isInstantiatable(clazz)) {
return true;
}
} else if (concrete) {
if (!clazz.hasModifierProperty(PsiModifier.ABSTRACT) && !clazz.isInterface()) {
return true;
}
} else if (notInterface) {
if (!clazz.isInterface()) {
return true;
}
} else if (notEnum) {
if (!clazz.isEnum()) {
return true;
}
} else {
return true;
}
return false;
}
@NotNull
public Object[] getVariants() {
PsiElement context = getContext();
if (context == null) {
context = JavaPsiFacade.getInstance(getElement().getProject()).findPackage("");
}
if (context instanceof PsiPackage) {
final String[] extendClasses = getExtendClassNames();
if (extendClasses != null) {
return getSubclassVariants((PsiPackage) context, extendClasses);
}
return processPackage((PsiPackage) context);
}
if (context instanceof PsiClass) {
final PsiClass aClass = (PsiClass) context;
if (myInStaticImport) {
return ArrayUtil.mergeArrays(aClass.getInnerClasses(), aClass.getFields(), Object.class);
} else if (isDefinitelyStatic()) {
final PsiClass[] psiClasses = aClass.getInnerClasses();
final List<PsiClass> staticClasses = new ArrayList<PsiClass>(psiClasses.length);
for (PsiClass c : psiClasses) {
if (c.hasModifierProperty(PsiModifier.STATIC)) {
staticClasses.add(c);
}
}
return staticClasses.isEmpty()
? PsiClass.EMPTY_ARRAY
: staticClasses.toArray(new PsiClass[staticClasses.size()]);
}
}
return ArrayUtil.EMPTY_OBJECT_ARRAY;
}
@Override
public void visitAnonymousClass(@NotNull PsiAnonymousClass anonymousClass) {
if (anonymousClass instanceof PsiEnumConstantInitializer) {
return;
}
final PsiMember containingMember =
PsiTreeUtil.getParentOfType(anonymousClass, PsiMember.class);
if (containingMember == null || containingMember.hasModifierProperty(PsiModifier.STATIC)) {
return;
}
final PsiJavaCodeReferenceElement reference = anonymousClass.getBaseClassReference();
if (reference.resolve() == null) {
// don't warn on broken code
return;
}
final PsiClass containingClass = PsiTreeUtil.getParentOfType(anonymousClass, PsiClass.class);
if (containingClass == null) {
return;
}
if (containingClass.getContainingClass() != null
&& !containingClass.hasModifierProperty(PsiModifier.STATIC)) {
// strictly speaking can be named static inner class but not when part of the current
// containing class
return;
}
final InnerClassReferenceVisitor visitor = new InnerClassReferenceVisitor(anonymousClass);
anonymousClass.accept(visitor);
if (!visitor.canInnerClassBeStatic()) {
return;
}
if (hasReferenceToLocalClass(anonymousClass)) {
return;
}
registerClassError(anonymousClass);
}
@Nullable
private String verifyInnerClassDestination() {
PsiClass targetClass = findTargetClass();
if (targetClass == null) return null;
for (PsiElement element : myElementsToMove) {
if (PsiTreeUtil.isAncestor(element, targetClass, false)) {
return RefactoringBundle.message("move.class.to.inner.move.to.self.error");
}
final Language targetClassLanguage = targetClass.getLanguage();
if (!element.getLanguage().equals(targetClassLanguage)) {
return RefactoringBundle.message(
"move.to.different.language",
UsageViewUtil.getType(element),
((PsiClass) element).getQualifiedName(),
targetClass.getQualifiedName());
}
if (element.getLanguage().equals(Language.findLanguageByID("Groovy"))) {
return RefactoringBundle.message("dont.support.inner.classes", "Groovy");
}
}
while (targetClass != null) {
if (targetClass.getContainingClass() != null
&& !targetClass.hasModifierProperty(PsiModifier.STATIC)) {
return RefactoringBundle.message("move.class.to.inner.nonstatic.error");
}
targetClass = targetClass.getContainingClass();
}
return null;
}
@NotNull
public static SearchScope getClassUseScope(@NotNull PsiClass aClass) {
if (aClass instanceof PsiAnonymousClass) {
return new LocalSearchScope(aClass);
}
final GlobalSearchScope maximalUseScope = ResolveScopeManager.getElementUseScope(aClass);
PsiFile file = aClass.getContainingFile();
if (PsiImplUtil.isInServerPage(file)) return maximalUseScope;
final PsiClass containingClass = aClass.getContainingClass();
if (aClass.hasModifierProperty(PsiModifier.PUBLIC)
|| aClass.hasModifierProperty(PsiModifier.PROTECTED)) {
return containingClass == null ? maximalUseScope : containingClass.getUseScope();
} else if (aClass.hasModifierProperty(PsiModifier.PRIVATE)
|| aClass instanceof PsiTypeParameter) {
PsiClass topClass = PsiUtil.getTopLevelClass(aClass);
return new LocalSearchScope(topClass == null ? aClass.getContainingFile() : topClass);
} else {
PsiPackage aPackage = null;
if (file instanceof PsiJavaFile) {
aPackage =
JavaPsiFacade.getInstance(aClass.getProject())
.findPackage(((PsiJavaFile) file).getPackageName());
}
if (aPackage == null) {
PsiDirectory dir = file.getContainingDirectory();
if (dir != null) {
aPackage = JavaDirectoryService.getInstance().getPackage(dir);
}
}
if (aPackage != null) {
SearchScope scope = PackageScope.packageScope(aPackage, false);
scope = scope.intersectWith(maximalUseScope);
return scope;
}
return new LocalSearchScope(file);
}
}
private boolean isAccessible(PsiClass otherClass) {
if (otherClass.hasModifierProperty(PsiModifier.PRIVATE)) {
final PsiClass containingClass = otherClass.getContainingClass();
PsiClass containingPlaceClass = PsiTreeUtil.getParentOfType(myPlace, PsiClass.class, false);
while (containingPlaceClass != null) {
if (containingClass == containingPlaceClass) {
return true;
}
containingPlaceClass = PsiTreeUtil.getParentOfType(containingPlaceClass, PsiClass.class);
}
return false;
}
return true;
}
/**
* Allows to check if static import may be performed for the given element.
*
* @param element element to check
* @return target class that may be statically imported if any; <code>null</code> otherwise
*/
@Nullable
public static PsiClass getClassToPerformStaticImport(@NotNull PsiElement element) {
if (!PsiUtil.isLanguageLevel5OrHigher(element)) return null;
if (!(element instanceof PsiIdentifier)
|| !(element.getParent() instanceof PsiJavaCodeReferenceElement)) {
return null;
}
PsiJavaCodeReferenceElement refExpr = (PsiJavaCodeReferenceElement) element.getParent();
if (refExpr instanceof PsiMethodReferenceExpression) return null;
final PsiElement gParent = refExpr.getParent();
if (gParent instanceof PsiMethodReferenceExpression) return null;
if (!(gParent instanceof PsiJavaCodeReferenceElement)
|| isParameterizedReference((PsiJavaCodeReferenceElement) gParent)) return null;
PsiElement resolved = refExpr.resolve();
if (!(resolved instanceof PsiClass)) {
return null;
}
PsiClass psiClass = (PsiClass) resolved;
if (PsiUtil.isFromDefaultPackage(psiClass)
|| psiClass.hasModifierProperty(PsiModifier.PRIVATE)
|| psiClass.getQualifiedName() == null) return null;
final PsiElement ggParent = gParent.getParent();
if (ggParent instanceof PsiMethodCallExpression) {
final PsiMethodCallExpression call = (PsiMethodCallExpression) ggParent.copy();
final PsiElement qualifier = call.getMethodExpression().getQualifier();
if (qualifier == null) return null;
qualifier.delete();
final PsiMethod method = call.resolveMethod();
if (method != null && method.getContainingClass() != psiClass) return null;
} else {
final PsiJavaCodeReferenceElement copy = (PsiJavaCodeReferenceElement) gParent.copy();
final PsiElement qualifier = copy.getQualifier();
if (qualifier == null) return null;
qualifier.delete();
final PsiElement target = copy.resolve();
if (target != null && PsiTreeUtil.getParentOfType(target, PsiClass.class) != psiClass)
return null;
}
PsiFile file = refExpr.getContainingFile();
if (!(file instanceof PsiJavaFile)) return null;
PsiImportList importList = ((PsiJavaFile) file).getImportList();
if (importList == null) return null;
return psiClass;
}
@NotNull
private PsiSubstitutor mapSubstitutor(
PsiClass originalClass, PsiClass mappedClass, PsiSubstitutor substitutor) {
PsiTypeParameter[] typeParameters = mappedClass.getTypeParameters();
PsiTypeParameter[] originalTypeParameters = originalClass.getTypeParameters();
if (typeParameters.length != originalTypeParameters.length) {
if (originalTypeParameters.length == 0) {
return JavaPsiFacade.getElementFactory(mappedClass.getProject())
.createRawSubstitutor(mappedClass);
}
return substitutor;
}
Map<PsiTypeParameter, PsiType> substitutionMap = substitutor.getSubstitutionMap();
PsiSubstitutor mappedSubstitutor = PsiSubstitutor.EMPTY;
for (int i = 0; i < originalTypeParameters.length; i++) {
if (!substitutionMap.containsKey(originalTypeParameters[i])) continue;
PsiType originalSubstitute = substitutor.substitute(originalTypeParameters[i]);
if (originalSubstitute != null) {
PsiType substitute = mapType(originalSubstitute);
if (substitute == null) return substitutor;
mappedSubstitutor = mappedSubstitutor.put(typeParameters[i], substitute);
} else {
mappedSubstitutor = mappedSubstitutor.put(typeParameters[i], null);
}
}
if (mappedClass.hasModifierProperty(PsiModifier.STATIC)) {
return mappedSubstitutor;
}
PsiClass mappedContaining = mappedClass.getContainingClass();
PsiClass originalContaining = originalClass.getContainingClass();
//noinspection DoubleNegation
if ((mappedContaining != null) != (originalContaining != null)) {
return substitutor;
}
if (mappedContaining != null) {
return mappedSubstitutor.putAll(
mapSubstitutor(originalContaining, mappedContaining, substitutor));
}
return mappedSubstitutor;
}
@Override
public boolean execute(@NotNull PsiElement element, ResolveState state) {
if (!(element instanceof PsiClass)) return true;
final PsiClass aClass = (PsiClass) element;
final String name = aClass.getName();
if (!myClassName.equals(name)) {
return true;
}
boolean accessible = myPlace == null || checkAccessibility(aClass);
if (myCandidates == null) {
myCandidates = new SmartList<ClassCandidateInfo>();
} else {
String fqName = aClass.getQualifiedName();
if (fqName != null) {
for (int i = myCandidates.size() - 1; i >= 0; i--) {
ClassCandidateInfo info = myCandidates.get(i);
Domination domination =
dominates(aClass, accessible && isAccessible(aClass), fqName, info);
if (domination == Domination.DOMINATED_BY) {
return true;
} else if (domination == Domination.DOMINATES) {
myCandidates.remove(i);
}
}
}
}
myHasAccessibleCandidate |= accessible;
myHasInaccessibleCandidate |= !accessible;
myCandidates.add(
new ClassCandidateInfo(
aClass, state.get(PsiSubstitutor.KEY), !accessible, myCurrentFileContext));
myResult = null;
if (!accessible) return true;
if (aClass.hasModifierProperty(PsiModifier.PRIVATE)) {
final PsiClass containingPlaceClass =
PsiTreeUtil.getParentOfType(myPlace, PsiClass.class, false);
if (containingPlaceClass != null
&& !PsiTreeUtil.isAncestor(containingPlaceClass, aClass, true)) {
return true;
}
}
return myCurrentFileContext instanceof PsiImportStatementBase;
}
private static boolean isRunnable(final PsiClass psiClass) {
if (!(psiClass instanceof GrTypeDefinition)) return false;
if (psiClass instanceof PsiAnonymousClass) return false;
if (psiClass.isInterface()) return false;
final PsiClass runnable =
JavaPsiFacade.getInstance(psiClass.getProject())
.findClass("java.lang.Runnable", psiClass.getResolveScope());
if (runnable == null) return false;
final PsiMethod runMethod = runnable.getMethods()[0];
final PsiMethod[] runImplementations = psiClass.findMethodsBySignature(runMethod, false);
if (runImplementations.length == 1
&& runImplementations[0] instanceof GrMethod
&& ((GrMethod) runImplementations[0]).getBlock() != null) {
return psiClass.getContainingClass() == null
|| psiClass.hasModifierProperty(PsiModifier.STATIC);
}
return false;
}
private boolean processClass(
PsiClass resolve,
PsiSubstitutor originalSubstitutor,
final Map<PsiTypeParameter, PsiType> substMap) {
final PsiTypeParameter[] params = resolve.getTypeParameters();
for (final PsiTypeParameter param : params) {
final PsiType original = originalSubstitutor.substitute(param);
if (original == null) {
substMap.put(param, null);
} else {
substMap.put(param, substituteInternal(original));
}
}
if (resolve.hasModifierProperty(PsiModifier.STATIC)) return true;
final PsiClass containingClass = resolve.getContainingClass();
return containingClass == null
|| processClass(containingClass, originalSubstitutor, substMap);
}
@Override
public void handleInsert(final InsertionContext context, LookupElement item) {
final PsiClassType.ClassResolveResult resolveResult = myClassType.resolveGenerics();
final PsiClass psiClass = resolveResult.getElement();
if (psiClass == null || !psiClass.isValid()) {
return;
}
GroovyPsiElement place =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(), context.getStartOffset(), GroovyPsiElement.class, false);
boolean hasParams =
place != null && GroovyCompletionUtil.hasConstructorParameters(psiClass, place);
if (myTriggerFeature) {
FeatureUsageTracker.getInstance().triggerFeatureUsed(JavaCompletionFeatures.AFTER_NEW);
}
if (hasParams) {
ParenthesesInsertHandler.WITH_PARAMETERS.handleInsert(context, item);
} else {
ParenthesesInsertHandler.NO_PARAMETERS.handleInsert(context, item);
}
shortenRefsInGenerics(context);
if (hasParams) {
AutoPopupController.getInstance(context.getProject())
.autoPopupParameterInfo(context.getEditor(), null);
}
PsiDocumentManager.getInstance(context.getProject())
.doPostponedOperationsAndUnblockDocument(context.getDocument());
if (psiClass.hasModifierProperty(PsiModifier.ABSTRACT)) {
final Editor editor = context.getEditor();
final int offset = context.getTailOffset();
editor.getDocument().insertString(offset, " {}");
editor.getCaretModel().moveToOffset(offset + 2);
context.setLaterRunnable(generateAnonymousBody(editor, context.getFile()));
}
}
@Override
public void visitNewExpression(PsiNewExpression expression) {
if (FileTypeUtils.isInServerPageFile(expression)) {
return;
}
super.visitNewExpression(expression);
final PsiClass containingClass = getContainingContextClass(expression);
if (containingClass == null) {
return;
}
final PsiMethod constructor = expression.resolveConstructor();
if (constructor == null) {
final PsiJavaCodeReferenceElement classReference =
expression.getClassOrAnonymousClassReference();
if (classReference == null) {
return;
}
final PsiElement target = classReference.resolve();
if (!(target instanceof PsiClass)) {
return;
}
final PsiClass aClass = (PsiClass) target;
if (!aClass.hasModifierProperty(PsiModifier.PRIVATE)) {
return;
}
if (aClass.equals(containingClass)) {
return;
}
registerNewExpressionError(expression, aClass);
} else {
if (!constructor.hasModifierProperty(PsiModifier.PRIVATE)) {
return;
}
final PsiClass aClass = constructor.getContainingClass();
if (containingClass.equals(aClass)) {
return;
}
registerNewExpressionError(expression, aClass);
}
}
public PsiClass getParentClass(@NotNull PsiExpression initializerExpression) {
final PsiType type = initializerExpression.getType();
if (type != null && PsiUtil.isConstantExpression(initializerExpression)) {
if (type instanceof PsiPrimitiveType
|| PsiType.getJavaLangString(
initializerExpression.getManager(), initializerExpression.getResolveScope())
.equals(type)) {
return super.getParentClass(initializerExpression);
}
}
PsiElement parent = initializerExpression.getUserData(ElementToWorkOn.PARENT);
if (parent == null) parent = initializerExpression;
PsiClass aClass = PsiTreeUtil.getParentOfType(parent, PsiClass.class);
while (aClass != null) {
if (aClass.hasModifierProperty(PsiModifier.STATIC)) return aClass;
if (aClass.getParent() instanceof PsiJavaFile) return aClass;
aClass = PsiTreeUtil.getParentOfType(aClass, PsiClass.class);
}
return null;
}
private static boolean containsOnlyPrivates(final PsiClass aClass) {
final PsiField[] fields = aClass.getFields();
for (PsiField field : fields) {
if (!field.hasModifierProperty(PsiModifier.PRIVATE)) return false;
}
final PsiMethod[] methods = aClass.getMethods();
for (PsiMethod method : methods) {
if (!method.hasModifierProperty(PsiModifier.PRIVATE)) {
if (method.isConstructor()) { // skip non-private constructors with call to super only
final PsiCodeBlock body = method.getBody();
if (body != null) {
final PsiStatement[] statements = body.getStatements();
if (statements.length == 0) continue;
if (statements.length == 1 && statements[0] instanceof PsiExpressionStatement) {
final PsiExpression expression =
((PsiExpressionStatement) statements[0]).getExpression();
if (expression instanceof PsiMethodCallExpression) {
PsiReferenceExpression methodExpression =
((PsiMethodCallExpression) expression).getMethodExpression();
if (methodExpression.getText().equals(PsiKeyword.SUPER)) {
continue;
}
}
}
}
}
return false;
}
}
final PsiClass[] inners = aClass.getInnerClasses();
for (PsiClass inner : inners) {
if (!inner.hasModifierProperty(PsiModifier.PRIVATE)) return false;
}
return true;
}
@Override
public void visitClass(@NotNull PsiClass aClass) {
// no call to super, so that it doesn't drill down to inner classes
if (aClass.hasModifierProperty(PsiModifier.ABSTRACT)) {
return;
}
if (!UtilityClassUtil.isUtilityClass(aClass)) {
return;
}
if (ignoreClassesWithOnlyMain && hasOnlyMain(aClass)) {
return;
}
if (hasPrivateConstructor(aClass)) {
return;
}
final SearchScope scope = GlobalSearchScope.projectScope(aClass.getProject());
final Query<PsiClass> query = ClassInheritorsSearch.search(aClass, scope, true, true);
final PsiClass subclass = query.findFirst();
if (subclass != null) {
return;
}
registerClassError(aClass, aClass);
}
@Override
public void visitClass(@NotNull PsiClass aClass) {
if (!aClass.isEnum()) {
return;
}
if (!ClassUtils.isInnerClass(aClass)) {
return;
}
if (!aClass.hasModifierProperty(PsiModifier.STATIC)) {
return;
}
final PsiModifierList modifiers = aClass.getModifierList();
if (modifiers == null) {
return;
}
final PsiElement[] children = modifiers.getChildren();
for (final PsiElement child : children) {
final String text = child.getText();
if (PsiModifier.STATIC.equals(text)) {
registerError(child, child, aClass);
}
}
}
private void checkExpression(PsiExpression expression) {
if (expression == null) return;
final PsiType type = expression.getType();
if (!(type instanceof PsiClassType)) return;
if (IGNORE_TOSTRING
&& MethodUtils.isToString(PsiTreeUtil.getParentOfType(expression, PsiMethod.class)))
return;
if (IGNORE_EXCEPTION
&& (ExceptionUtils.isExceptionArgument(expression)
|| PsiTreeUtil.getParentOfType(
expression, PsiThrowStatement.class, true, PsiCodeBlock.class, PsiClass.class)
!= null)) return;
if (IGNORE_ASSERT
&& PsiTreeUtil.getParentOfType(
expression, PsiAssertStatement.class, true, PsiCodeBlock.class, PsiClass.class)
!= null) {
return;
}
if (IGNORE_NONNLS && NonNlsUtils.isNonNlsAnnotatedUse(expression)) return;
final PsiClassType classType = (PsiClassType) type;
if (type.equalsToText(CommonClassNames.JAVA_LANG_OBJECT)) return;
final PsiClass referencedClass = classType.resolve();
if (referencedClass == null || referencedClass instanceof PsiTypeParameter) return;
if (referencedClass.isEnum() || referencedClass.isInterface()) return;
if (referencedClass.hasModifierProperty(PsiModifier.ABSTRACT)
&& !(expression instanceof PsiSuperExpression)) return;
if (hasGoodToString(referencedClass)) return;
registerError(expression);
}
public static void renderClassItem(
LookupElementPresentation presentation, LookupItem item, PsiClass psiClass, boolean diamond) {
if (!(psiClass instanceof PsiTypeParameter)) {
presentation.setIcon(DefaultLookupItemRenderer.getRawIcon(item, presentation.isReal()));
}
final boolean bold = item.getAttribute(LookupItem.HIGHLIGHTED_ATTR) != null;
boolean strikeout = JavaElementLookupRenderer.isToStrikeout(item);
presentation.setItemText(getName(psiClass, item, diamond));
presentation.setStrikeout(strikeout);
presentation.setItemTextBold(bold);
String tailText = StringUtil.notNullize((String) item.getAttribute(LookupItem.TAIL_TEXT_ATTR));
PsiSubstitutor substitutor = (PsiSubstitutor) item.getAttribute(LookupItem.SUBSTITUTOR);
if (item instanceof PsiTypeLookupItem
&& ((PsiTypeLookupItem) item).isIndicateAnonymous()
&& (psiClass.isInterface() || psiClass.hasModifierProperty(PsiModifier.ABSTRACT))) {
tailText = "{...}" + tailText;
}
if (substitutor == null && !diamond && psiClass.getTypeParameters().length > 0) {
tailText =
"<"
+ StringUtil.join(
psiClass.getTypeParameters(),
new Function<PsiTypeParameter, String>() {
@Override
public String fun(PsiTypeParameter psiTypeParameter) {
return psiTypeParameter.getName();
}
},
"," + (showSpaceAfterComma(psiClass) ? " " : ""))
+ ">"
+ tailText;
}
presentation.setTailText(tailText, true);
}
public Collection<String> findConflicts(
@NotNull final PsiElement element, @NotNull final PsiElement[] allElementsToDelete) {
if (element instanceof PsiMethod) {
final PsiClass containingClass = ((PsiMethod) element).getContainingClass();
if (containingClass != null && !containingClass.hasModifierProperty(PsiModifier.ABSTRACT)) {
final PsiMethod[] superMethods = ((PsiMethod) element).findSuperMethods();
for (PsiMethod superMethod : superMethods) {
if (isInside(superMethod, allElementsToDelete)) continue;
if (superMethod.hasModifierProperty(PsiModifier.ABSTRACT)) {
String message =
RefactoringBundle.message(
"0.implements.1",
RefactoringUIUtil.getDescription(element, true),
RefactoringUIUtil.getDescription(superMethod, true));
return Collections.singletonList(message);
}
}
}
} else if (element instanceof PsiParameter) {
final PsiElement scope = ((PsiParameter) element).getDeclarationScope();
if (scope instanceof PsiMethod) {
final PsiMethod method = (PsiMethod) scope;
final PsiClass containingClass = method.getContainingClass();
if (containingClass != null) {
final int parameterIndex =
method.getParameterList().getParameterIndex((PsiParameter) element);
final PsiMethod methodCopy = (PsiMethod) method.copy();
methodCopy.getParameterList().getParameters()[parameterIndex].delete();
final MultiMap<PsiElement, String> conflicts = new MultiMap<>();
ConflictsUtil.checkMethodConflicts(containingClass, method, methodCopy, conflicts);
return (Collection<String>) conflicts.values();
}
}
}
return null;
}
public static MultiMap<PsiElement, String> checkConflicts(
final MemberInfoBase<? extends PsiMember>[] infos,
@NotNull final PsiClass subclass,
@Nullable PsiClass superClass,
@NotNull final PsiPackage targetPackage,
@NotNull PsiDirectory targetDirectory,
final InterfaceContainmentVerifier interfaceContainmentVerifier,
boolean movedMembers2Super) {
final Set<PsiMember> movedMembers = new HashSet<PsiMember>();
final Set<PsiMethod> abstractMethods = new HashSet<PsiMethod>();
final boolean isInterfaceTarget;
final PsiElement targetRepresentativeElement;
if (superClass != null) {
isInterfaceTarget = superClass.isInterface();
targetRepresentativeElement = superClass;
} else {
isInterfaceTarget = false;
targetRepresentativeElement = targetDirectory;
}
for (MemberInfoBase<? extends PsiMember> info : infos) {
PsiMember member = info.getMember();
if (member instanceof PsiMethod) {
if (!info.isToAbstract() && !isInterfaceTarget) {
movedMembers.add(member);
} else {
abstractMethods.add((PsiMethod) member);
}
} else {
movedMembers.add(member);
}
}
final MultiMap<PsiElement, String> conflicts = new MultiMap<PsiElement, String>();
final Set<PsiMethod> abstrMethods = new HashSet<PsiMethod>(abstractMethods);
if (superClass != null) {
for (PsiMethod method : subclass.getMethods()) {
if (!movedMembers.contains(method) && !method.hasModifierProperty(PsiModifier.PRIVATE)) {
if (method.findSuperMethods(superClass).length > 0) {
abstrMethods.add(method);
}
}
}
}
RefactoringConflictsUtil.analyzeAccessibilityConflicts(
movedMembers,
superClass,
conflicts,
VisibilityUtil.ESCALATE_VISIBILITY,
targetRepresentativeElement,
abstrMethods);
if (superClass != null) {
if (movedMembers2Super) {
checkSuperclassMembers(superClass, infos, conflicts);
if (isInterfaceTarget) {
checkInterfaceTarget(infos, conflicts);
}
} else {
final String qualifiedName = superClass.getQualifiedName();
assert qualifiedName != null;
if (superClass.hasModifierProperty(PsiModifier.PACKAGE_LOCAL)) {
if (!Comparing.strEqual(
StringUtil.getPackageName(qualifiedName), targetPackage.getQualifiedName())) {
conflicts.putValue(
superClass,
RefactoringUIUtil.getDescription(superClass, true)
+ " won't be accessible from "
+ RefactoringUIUtil.getDescription(targetPackage, true));
}
}
}
}
// check if moved methods use other members in the classes between Subclass and Superclass
List<PsiElement> checkModuleConflictsList = new ArrayList<PsiElement>();
for (PsiMember member : movedMembers) {
if (member instanceof PsiMethod
|| member instanceof PsiClass && !(member instanceof PsiCompiledElement)) {
ClassMemberReferencesVisitor visitor =
movedMembers2Super
? new ConflictingUsagesOfSubClassMembers(
member,
movedMembers,
abstractMethods,
subclass,
superClass,
superClass != null ? null : targetPackage,
conflicts,
interfaceContainmentVerifier)
: new ConflictingUsagesOfSuperClassMembers(
member, subclass, targetPackage, movedMembers, conflicts);
member.accept(visitor);
}
ContainerUtil.addIfNotNull(checkModuleConflictsList, member);
}
for (final PsiMethod method : abstractMethods) {
ContainerUtil.addIfNotNull(checkModuleConflictsList, method.getParameterList());
ContainerUtil.addIfNotNull(checkModuleConflictsList, method.getReturnTypeElement());
ContainerUtil.addIfNotNull(checkModuleConflictsList, method.getTypeParameterList());
}
RefactoringConflictsUtil.analyzeModuleConflicts(
subclass.getProject(),
checkModuleConflictsList,
new UsageInfo[0],
targetRepresentativeElement,
conflicts);
final String fqName = subclass.getQualifiedName();
final String packageName;
if (fqName != null) {
packageName = StringUtil.getPackageName(fqName);
} else {
final PsiFile psiFile = PsiTreeUtil.getParentOfType(subclass, PsiFile.class);
if (psiFile instanceof PsiClassOwner) {
packageName = ((PsiClassOwner) psiFile).getPackageName();
} else {
packageName = null;
}
}
final boolean toDifferentPackage =
!Comparing.strEqual(targetPackage.getQualifiedName(), packageName);
for (final PsiMethod abstractMethod : abstractMethods) {
abstractMethod.accept(
new ClassMemberReferencesVisitor(subclass) {
@Override
protected void visitClassMemberReferenceElement(
PsiMember classMember, PsiJavaCodeReferenceElement classMemberReference) {
if (classMember != null && willBeMoved(classMember, movedMembers)) {
boolean isAccessible = false;
if (classMember.hasModifierProperty(PsiModifier.PRIVATE)) {
isAccessible = true;
} else if (classMember.hasModifierProperty(PsiModifier.PACKAGE_LOCAL)
&& toDifferentPackage) {
isAccessible = true;
}
if (isAccessible) {
String message =
RefactoringUIUtil.getDescription(abstractMethod, false)
+ " uses "
+ RefactoringUIUtil.getDescription(classMember, true)
+ " which won't be accessible from the subclass.";
message = CommonRefactoringUtil.capitalize(message);
conflicts.putValue(classMember, message);
}
}
}
});
if (abstractMethod.hasModifierProperty(PsiModifier.PACKAGE_LOCAL) && toDifferentPackage) {
if (!isInterfaceTarget) {
String message =
"Can't make "
+ RefactoringUIUtil.getDescription(abstractMethod, false)
+ " abstract as it won't be accessible from the subclass.";
message = CommonRefactoringUtil.capitalize(message);
conflicts.putValue(abstractMethod, message);
}
}
}
return conflicts;
}
private void buildText(
@NotNull PsiClass aClass,
@NotNull PsiSubstitutor substitutor,
@NotNull StringBuilder buffer,
@NotNull TextType textType,
boolean annotated) {
if (aClass instanceof PsiAnonymousClass) {
ClassResolveResult baseResolveResult =
((PsiAnonymousClass) aClass).getBaseClassType().resolveGenerics();
PsiClass baseClass = baseResolveResult.getElement();
if (baseClass != null) {
buildText(baseClass, baseResolveResult.getSubstitutor(), buffer, textType, false);
}
return;
}
boolean qualified = textType != TextType.PRESENTABLE;
PsiClass enclosingClass = null;
if (!aClass.hasModifierProperty(PsiModifier.STATIC)) {
PsiElement parent = aClass.getParent();
if (parent instanceof PsiClass && !(parent instanceof PsiAnonymousClass)) {
enclosingClass = (PsiClass) parent;
}
}
if (enclosingClass != null) {
buildText(enclosingClass, substitutor, buffer, textType, false);
buffer.append('.');
} else if (qualified) {
String fqn = aClass.getQualifiedName();
if (fqn != null) {
String prefix = StringUtil.getPackageName(fqn);
if (!StringUtil.isEmpty(prefix)) {
buffer.append(prefix);
buffer.append('.');
}
}
}
if (annotated) {
PsiNameHelper.appendAnnotations(buffer, getAnnotations(), qualified);
}
buffer.append(aClass.getName());
PsiTypeParameter[] typeParameters = aClass.getTypeParameters();
if (typeParameters.length > 0) {
int pos = buffer.length();
buffer.append('<');
for (int i = 0; i < typeParameters.length; i++) {
PsiTypeParameter typeParameter = typeParameters[i];
PsiUtilCore.ensureValid(typeParameter);
if (i > 0) {
buffer.append(',');
if (textType == TextType.PRESENTABLE) buffer.append(' ');
}
PsiType substitutionResult = substitutor.substitute(typeParameter);
if (substitutionResult == null) {
buffer.setLength(pos);
pos = -1;
break;
}
PsiUtil.ensureValidType(substitutionResult);
if (textType == TextType.PRESENTABLE) {
buffer.append(substitutionResult.getPresentableText());
} else if (textType == TextType.CANONICAL) {
buffer.append(substitutionResult.getCanonicalText(annotated));
} else {
buffer.append(substitutionResult.getInternalCanonicalText());
}
}
if (pos >= 0) {
buffer.append('>');
}
}
}
private void buildText(
@NotNull PsiClass aClass,
@NotNull PsiSubstitutor substitutor,
@NotNull StringBuilder buffer,
boolean canonical,
boolean internal) {
if (aClass instanceof PsiAnonymousClass) {
ClassResolveResult baseResolveResult =
((PsiAnonymousClass) aClass).getBaseClassType().resolveGenerics();
PsiClass baseClass = baseResolveResult.getElement();
PsiSubstitutor baseSub = baseResolveResult.getSubstitutor();
if (baseClass != null) {
buildText(baseClass, baseSub, buffer, canonical, internal);
}
return;
}
if (canonical == internal) {
buffer.append(getAnnotationsTextPrefix(internal, false, true));
}
PsiClass enclosingClass = null;
if (!aClass.hasModifierProperty(PsiModifier.STATIC)) {
final PsiElement parent = aClass.getParent();
if (parent instanceof PsiClass && !(parent instanceof PsiAnonymousClass)) {
enclosingClass = (PsiClass) parent;
}
}
if (enclosingClass != null) {
buildText(enclosingClass, substitutor, buffer, canonical, false);
buffer.append('.');
buffer.append(aClass.getName());
} else {
final String name;
if (!canonical) {
name = aClass.getName();
} else {
final String qualifiedName = aClass.getQualifiedName();
if (qualifiedName == null) {
name = aClass.getName();
} else {
name = qualifiedName;
}
}
buffer.append(name);
}
PsiTypeParameter[] typeParameters = aClass.getTypeParameters();
if (typeParameters.length > 0) {
StringBuilder pineBuffer = new StringBuilder();
pineBuffer.append('<');
for (int i = 0; i < typeParameters.length; i++) {
PsiTypeParameter typeParameter = typeParameters[i];
assert typeParameter.isValid();
if (i > 0) pineBuffer.append(',');
final PsiType substitutionResult = substitutor.substitute(typeParameter);
if (substitutionResult == null) {
pineBuffer = null;
break;
}
assert substitutionResult.isValid();
if (canonical) {
if (internal) {
pineBuffer.append(substitutionResult.getInternalCanonicalText());
} else {
pineBuffer.append(substitutionResult.getCanonicalText());
}
} else {
pineBuffer.append(substitutionResult.getPresentableText());
}
}
if (pineBuffer != null) {
buffer.append(pineBuffer);
buffer.append('>');
}
}
}
protected void initialize() {
myDefaultConstructor = null;
final PsiClass psiClass = getElement();
LOG.assertTrue(psiClass != null);
PsiElement psiParent = psiClass.getParent();
if (psiParent instanceof PsiFile) {
if (isSyntheticJSP()) {
final RefFileImpl refFile =
(RefFileImpl) getRefManager().getReference(JspPsiUtil.getJspFile(psiClass));
LOG.assertTrue(refFile != null);
refFile.add(this);
} else if (psiParent instanceof PsiJavaFile) {
PsiJavaFile psiFile = (PsiJavaFile) psiParent;
String packageName = psiFile.getPackageName();
if (!"".equals(packageName)) {
((RefPackageImpl) getRefJavaManager().getPackage(packageName)).add(this);
} else {
((RefPackageImpl) getRefJavaManager().getDefaultPackage()).add(this);
}
}
final Module module = ModuleUtil.findModuleForPsiElement(psiClass);
LOG.assertTrue(module != null);
final RefModuleImpl refModule = ((RefModuleImpl) getRefManager().getRefModule(module));
LOG.assertTrue(refModule != null);
refModule.add(this);
} else {
while (!(psiParent instanceof PsiClass
|| psiParent instanceof PsiMethod
|| psiParent instanceof PsiField)) {
psiParent = psiParent.getParent();
}
RefElement refParent = getRefManager().getReference(psiParent);
LOG.assertTrue(refParent != null);
((RefElementImpl) refParent).add(this);
}
setAbstract(psiClass.hasModifierProperty(PsiModifier.ABSTRACT));
setAnonymous(psiClass instanceof PsiAnonymousClass);
setIsLocal(!(isAnonymous() || psiParent instanceof PsiClass || psiParent instanceof PsiFile));
setInterface(psiClass.isInterface());
initializeSuperReferences(psiClass);
PsiMethod[] psiMethods = psiClass.getMethods();
PsiField[] psiFields = psiClass.getFields();
setUtilityClass(psiMethods.length > 0 || psiFields.length > 0);
for (PsiField psiField : psiFields) {
getRefManager().getReference(psiField);
}
if (!isApplet()) {
final PsiClass servlet = getRefJavaManager().getServlet();
setServlet(servlet != null && psiClass.isInheritor(servlet, true));
}
if (!isApplet() && !isServlet()) {
setTestCase(TestUtil.isTestClass(psiClass));
for (RefClass refBase : getBaseClasses()) {
((RefClassImpl) refBase).setTestCase(true);
}
}
for (PsiMethod psiMethod : psiMethods) {
RefMethod refMethod = (RefMethod) getRefManager().getReference(psiMethod);
if (refMethod != null) {
if (psiMethod.isConstructor()) {
if (psiMethod.getParameterList().getParametersCount() > 0
|| !psiMethod.hasModifierProperty(PsiModifier.PRIVATE)) {
setUtilityClass(false);
}
addConstructor(refMethod);
if (psiMethod.getParameterList().getParametersCount() == 0) {
setDefaultConstructor((RefMethodImpl) refMethod);
}
} else {
if (!psiMethod.hasModifierProperty(PsiModifier.STATIC)) {
setUtilityClass(false);
}
}
}
}
if (getConstructors().size() == 0 && !isInterface() && !isAnonymous()) {
RefImplicitConstructorImpl refImplicitConstructor = new RefImplicitConstructorImpl(this);
setDefaultConstructor(refImplicitConstructor);
addConstructor(refImplicitConstructor);
}
if (isInterface()) {
for (int i = 0; i < psiFields.length && isUtilityClass(); i++) {
PsiField psiField = psiFields[i];
if (!psiField.hasModifierProperty(PsiModifier.STATIC)) {
setUtilityClass(false);
}
}
}
final PsiClass applet = getRefJavaManager().getApplet();
setApplet(applet != null && psiClass.isInheritor(applet, true));
getRefManager().fireNodeInitialized(this);
}
@NotNull
private static Set<String> findSingleImports(
@NotNull final PsiJavaFile file,
@NotNull String[] names,
@NotNull final Set<String> onDemandImports,
@NotNull Set<String> namesToImportStaticly) {
final GlobalSearchScope resolveScope = file.getResolveScope();
Set<String> namesToUseSingle = new THashSet<String>();
final String thisPackageName = file.getPackageName();
final Set<String> implicitlyImportedPackages =
new THashSet<String>(Arrays.asList(file.getImplicitlyImportedPackages()));
final PsiManager manager = file.getManager();
for (String name : names) {
String prefix = getPackageOrClassName(name);
if (prefix.length() == 0) continue;
final boolean isImplicitlyImported = implicitlyImportedPackages.contains(prefix);
if (!onDemandImports.contains(prefix) && !isImplicitlyImported) continue;
String shortName = PsiNameHelper.getShortClassName(name);
String thisPackageClass =
thisPackageName.length() > 0 ? thisPackageName + "." + shortName : shortName;
if (JavaPsiFacade.getInstance(manager.getProject()).findClass(thisPackageClass, resolveScope)
!= null) {
namesToUseSingle.add(name);
continue;
}
if (!isImplicitlyImported) {
String langPackageClass = JAVA_LANG_PACKAGE + "." + shortName; // TODO : JSP!
if (JavaPsiFacade.getInstance(manager.getProject())
.findClass(langPackageClass, resolveScope)
!= null) {
namesToUseSingle.add(name);
continue;
}
}
for (String onDemandName : onDemandImports) {
if (prefix.equals(onDemandName)) continue;
if (namesToImportStaticly.contains(name)) {
PsiClass aClass =
JavaPsiFacade.getInstance(manager.getProject()).findClass(onDemandName, resolveScope);
if (aClass != null) {
PsiField field = aClass.findFieldByName(shortName, true);
if (field != null && field.hasModifierProperty(PsiModifier.STATIC)) {
namesToUseSingle.add(name);
} else {
PsiClass inner = aClass.findInnerClassByName(shortName, true);
if (inner != null && inner.hasModifierProperty(PsiModifier.STATIC)) {
namesToUseSingle.add(name);
} else {
PsiMethod[] methods = aClass.findMethodsByName(shortName, true);
for (PsiMethod method : methods) {
if (method.hasModifierProperty(PsiModifier.STATIC)) {
namesToUseSingle.add(name);
}
}
}
}
}
} else {
PsiClass aClass =
JavaPsiFacade.getInstance(manager.getProject())
.findClass(onDemandName + "." + shortName, resolveScope);
if (aClass != null) {
namesToUseSingle.add(name);
}
}
}
}
return namesToUseSingle;
}
