@NotNull
private static PsiClass[] getSupersInner(@NotNull PsiClass psiClass) {
PsiClassType[] extendsListTypes = psiClass.getExtendsListTypes();
PsiClassType[] implementsListTypes = psiClass.getImplementsListTypes();
if (psiClass.isInterface()) {
return resolveClassReferenceList(
extendsListTypes, psiClass.getManager(), psiClass.getResolveScope(), true);
}
if (psiClass instanceof PsiAnonymousClass) {
PsiAnonymousClass psiAnonymousClass = (PsiAnonymousClass) psiClass;
PsiClassType baseClassReference = psiAnonymousClass.getBaseClassType();
PsiClass baseClass = baseClassReference.resolve();
if (baseClass != null) {
if (baseClass.isInterface()) {
PsiClass objectClass =
JavaPsiFacade.getInstance(psiClass.getProject())
.findClass(CommonClassNames.JAVA_LANG_OBJECT, psiClass.getResolveScope());
return objectClass != null
? new PsiClass[] {objectClass, baseClass}
: new PsiClass[] {baseClass};
}
return new PsiClass[] {baseClass};
}
PsiClass objectClass =
JavaPsiFacade.getInstance(psiClass.getProject())
.findClass(CommonClassNames.JAVA_LANG_OBJECT, psiClass.getResolveScope());
return objectClass != null ? new PsiClass[] {objectClass} : PsiClass.EMPTY_ARRAY;
}
if (psiClass instanceof PsiTypeParameter) {
if (extendsListTypes.length == 0) {
final PsiClass objectClass =
JavaPsiFacade.getInstance(psiClass.getProject())
.findClass(CommonClassNames.JAVA_LANG_OBJECT, psiClass.getResolveScope());
return objectClass != null ? new PsiClass[] {objectClass} : PsiClass.EMPTY_ARRAY;
}
return resolveClassReferenceList(
extendsListTypes, psiClass.getManager(), psiClass.getResolveScope(), false);
}
PsiClass[] interfaces =
resolveClassReferenceList(
implementsListTypes, psiClass.getManager(), psiClass.getResolveScope(), false);
PsiClass superClass = getSuperClass(psiClass);
if (superClass == null) return interfaces;
PsiClass[] types = new PsiClass[interfaces.length + 1];
types[0] = superClass;
System.arraycopy(interfaces, 0, types, 1, interfaces.length);
return types;
}
@Nullable
public static PsiClass getSuperClass(@NotNull PsiClass psiClass) {
PsiManager manager = psiClass.getManager();
GlobalSearchScope resolveScope = psiClass.getResolveScope();
final JavaPsiFacade facade = JavaPsiFacade.getInstance(manager.getProject());
if (psiClass.isInterface()) {
return facade.findClass(CommonClassNames.JAVA_LANG_OBJECT, resolveScope);
}
if (psiClass.isEnum()) {
return facade.findClass(CommonClassNames.JAVA_LANG_ENUM, resolveScope);
}
if (psiClass instanceof PsiAnonymousClass) {
PsiClassType baseClassReference = ((PsiAnonymousClass) psiClass).getBaseClassType();
PsiClass baseClass = baseClassReference.resolve();
if (baseClass == null || baseClass.isInterface())
return facade.findClass(CommonClassNames.JAVA_LANG_OBJECT, resolveScope);
return baseClass;
}
if (CommonClassNames.JAVA_LANG_OBJECT.equals(psiClass.getQualifiedName())) return null;
final PsiClassType[] referenceElements = psiClass.getExtendsListTypes();
if (referenceElements.length == 0)
return facade.findClass(CommonClassNames.JAVA_LANG_OBJECT, resolveScope);
PsiClass psiResoved = referenceElements[0].resolve();
return psiResoved == null
? facade.findClass(CommonClassNames.JAVA_LANG_OBJECT, resolveScope)
: psiResoved;
}
public static boolean isClassEquivalentTo(@NotNull PsiClass aClass, PsiElement another) {
if (aClass == another) return true;
if (!(another instanceof PsiClass)) return false;
String name1 = aClass.getName();
if (name1 == null) return false;
if (!another.isValid()) return false;
String name2 = ((PsiClass) another).getName();
if (name2 == null) return false;
if (name1.hashCode() != name2.hashCode()) return false;
if (!name1.equals(name2)) return false;
String qName1 = aClass.getQualifiedName();
String qName2 = ((PsiClass) another).getQualifiedName();
if (qName1 == null || qName2 == null) {
//noinspection StringEquality
if (qName1 != qName2) return false;
if (aClass instanceof PsiTypeParameter && another instanceof PsiTypeParameter) {
PsiTypeParameter p1 = (PsiTypeParameter) aClass;
PsiTypeParameter p2 = (PsiTypeParameter) another;
return p1.getIndex() == p2.getIndex()
&& aClass.getManager().areElementsEquivalent(p1.getOwner(), p2.getOwner());
} else {
return false;
}
}
if (qName1.hashCode() != qName2.hashCode() || !qName1.equals(qName2)) {
return false;
}
if (originalElement(aClass).equals(originalElement((PsiClass) another))) {
return true;
}
final PsiFile file1 = aClass.getContainingFile().getOriginalFile();
final PsiFile file2 = another.getContainingFile().getOriginalFile();
// see com.intellij.openapi.vcs.changes.PsiChangeTracker
// see com.intellij.psi.impl.PsiFileFactoryImpl#createFileFromText(CharSequence,PsiFile)
final PsiFile original1 = file1.getUserData(PsiFileFactory.ORIGINAL_FILE);
final PsiFile original2 = file2.getUserData(PsiFileFactory.ORIGINAL_FILE);
if (original1 == original2 && original1 != null
|| original1 == file2
|| original2 == file1
|| file1 == file2) {
return compareClassSeqNumber(aClass, (PsiClass) another);
}
final FileIndexFacade fileIndex =
ServiceManager.getService(file1.getProject(), FileIndexFacade.class);
final VirtualFile vfile1 = file1.getViewProvider().getVirtualFile();
final VirtualFile vfile2 = file2.getViewProvider().getVirtualFile();
boolean lib1 = fileIndex.isInLibraryClasses(vfile1);
boolean lib2 = fileIndex.isInLibraryClasses(vfile2);
return (fileIndex.isInSource(vfile1) || lib1) && (fileIndex.isInSource(vfile2) || lib2);
}
@NotNull
public static PsiClass[] getInterfaces(@NotNull PsiClass psiClass) {
if (psiClass.isInterface()) {
final PsiClassType[] extendsListTypes = psiClass.getExtendsListTypes();
return resolveClassReferenceList(
extendsListTypes, psiClass.getManager(), psiClass.getResolveScope(), false);
}
if (psiClass instanceof PsiAnonymousClass) {
PsiClassType baseClassReference = ((PsiAnonymousClass) psiClass).getBaseClassType();
PsiClass baseClass = baseClassReference.resolve();
return baseClass != null && baseClass.isInterface()
? new PsiClass[] {baseClass}
: PsiClass.EMPTY_ARRAY;
}
final PsiClassType[] implementsListTypes = psiClass.getImplementsListTypes();
return resolveClassReferenceList(
implementsListTypes, psiClass.getManager(), psiClass.getResolveScope(), false);
}
@NotNull
public static PsiClassType[] getSuperTypes(@NotNull PsiClass psiClass) {
if (psiClass instanceof PsiAnonymousClass) {
PsiClassType baseClassType = ((PsiAnonymousClass) psiClass).getBaseClassType();
PsiClass baseClass = baseClassType.resolve();
if (baseClass == null || !baseClass.isInterface()) {
return new PsiClassType[] {baseClassType};
} else {
PsiClassType objectType =
PsiType.getJavaLangObject(psiClass.getManager(), psiClass.getResolveScope());
return new PsiClassType[] {objectType, baseClassType};
}
}
PsiClassType[] extendsTypes = psiClass.getExtendsListTypes();
PsiClassType[] implementsTypes = psiClass.getImplementsListTypes();
boolean hasExtends = extendsTypes.length != 0;
int extendsListLength = extendsTypes.length + (hasExtends ? 0 : 1);
PsiClassType[] result = new PsiClassType[extendsListLength + implementsTypes.length];
System.arraycopy(extendsTypes, 0, result, 0, extendsTypes.length);
if (!hasExtends) {
if (CommonClassNames.JAVA_LANG_OBJECT.equals(psiClass.getQualifiedName())) {
return PsiClassType.EMPTY_ARRAY;
}
PsiManager manager = psiClass.getManager();
PsiClassType objectType = PsiType.getJavaLangObject(manager, psiClass.getResolveScope());
result[0] = objectType;
}
System.arraycopy(implementsTypes, 0, result, extendsListLength, implementsTypes.length);
for (int i = 0; i < result.length; i++) {
PsiClassType type = result[i];
result[i] = (PsiClassType) PsiUtil.captureToplevelWildcards(type, psiClass);
}
return result;
}
private static PsiClassType getEnumSuperType(
@NotNull PsiClass psiClass, @NotNull PsiElementFactory factory) {
PsiClassType superType;
final PsiManager manager = psiClass.getManager();
final PsiClass enumClass =
JavaPsiFacade.getInstance(manager.getProject())
.findClass("java.lang.Enum", psiClass.getResolveScope());
if (enumClass == null) {
try {
superType = (PsiClassType) factory.createTypeFromText("java.lang.Enum", null);
} catch (IncorrectOperationException e) {
superType = null;
}
} else {
final PsiTypeParameter[] typeParameters = enumClass.getTypeParameters();
PsiSubstitutor substitutor = PsiSubstitutor.EMPTY;
if (typeParameters.length == 1) {
substitutor = substitutor.put(typeParameters[0], factory.createType(psiClass));
}
superType = new PsiImmediateClassType(enumClass, substitutor);
}
return superType;
}
public static int insertClassReference(
PsiClass psiClass, PsiFile file, int startOffset, int endOffset) {
final Project project = file.getProject();
PsiDocumentManager documentManager = PsiDocumentManager.getInstance(project);
documentManager.commitAllDocuments();
final PsiManager manager = file.getManager();
final Document document =
FileDocumentManager.getInstance().getDocument(file.getViewProvider().getVirtualFile());
final PsiReference reference = file.findReferenceAt(startOffset);
if (reference != null) {
final PsiElement resolved = reference.resolve();
if (resolved instanceof PsiClass) {
if (((PsiClass) resolved).getQualifiedName() == null
|| manager.areElementsEquivalent(psiClass, resolved)) {
return endOffset;
}
}
}
String name = psiClass.getName();
if (name == null) {
return endOffset;
}
assert document != null;
document.replaceString(startOffset, endOffset, name);
int newEndOffset = startOffset + name.length();
final RangeMarker toDelete = insertTemporary(newEndOffset, document, " ");
documentManager.commitAllDocuments();
PsiElement element = file.findElementAt(startOffset);
if (element instanceof PsiIdentifier) {
PsiElement parent = element.getParent();
if (parent instanceof PsiJavaCodeReferenceElement
&& !((PsiJavaCodeReferenceElement) parent).isQualified()
&& !(parent.getParent() instanceof PsiPackageStatement)) {
PsiJavaCodeReferenceElement ref = (PsiJavaCodeReferenceElement) parent;
if (psiClass.isValid()
&& !psiClass.getManager().areElementsEquivalent(psiClass, resolveReference(ref))) {
final boolean staticImport = ref instanceof PsiImportStaticReferenceElement;
PsiElement newElement;
try {
newElement =
staticImport
? ((PsiImportStaticReferenceElement) ref).bindToTargetClass(psiClass)
: ref.bindToElement(psiClass);
} catch (IncorrectOperationException e) {
return endOffset; // can happen if fqn contains reserved words, for example
}
final RangeMarker rangeMarker = document.createRangeMarker(newElement.getTextRange());
documentManager.doPostponedOperationsAndUnblockDocument(document);
documentManager.commitDocument(document);
newElement =
CodeInsightUtilCore.findElementInRange(
file,
rangeMarker.getStartOffset(),
rangeMarker.getEndOffset(),
PsiJavaCodeReferenceElement.class,
JavaLanguage.INSTANCE);
rangeMarker.dispose();
if (newElement != null) {
newEndOffset = newElement.getTextRange().getEndOffset();
if (!(newElement instanceof PsiReferenceExpression)) {
PsiReferenceParameterList parameterList =
((PsiJavaCodeReferenceElement) newElement).getParameterList();
if (parameterList != null) {
newEndOffset = parameterList.getTextRange().getStartOffset();
}
}
if (!staticImport
&& !psiClass
.getManager()
.areElementsEquivalent(psiClass, resolveReference((PsiReference) newElement))
&& !PsiUtil.isInnerClass(psiClass)) {
final String qName = psiClass.getQualifiedName();
if (qName != null) {
document.replaceString(
newElement.getTextRange().getStartOffset(), newEndOffset, qName);
newEndOffset = newElement.getTextRange().getStartOffset() + qName.length();
}
}
}
}
}
}
if (toDelete.isValid()) {
document.deleteString(toDelete.getStartOffset(), toDelete.getEndOffset());
}
return newEndOffset;
}