@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;
}
@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;
}
@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;
}
@Nullable
private PsiType getNominalTypeInner(@Nullable PsiElement resolved) {
if (resolved == null && !"class".equals(getReferenceName())) {
resolved = resolve();
}
if (resolved instanceof PsiClass) {
final PsiElementFactory factory = JavaPsiFacade.getInstance(getProject()).getElementFactory();
if (PsiUtil.isInstanceThisRef(this)) {
final PsiClassType categoryType = GdkMethodUtil.getCategoryType((PsiClass) resolved);
if (categoryType != null) {
return categoryType;
} else {
return factory.createType((PsiClass) resolved);
}
} else if (PsiUtil.isSuperReference(this)) {
PsiClass contextClass = PsiUtil.getContextClass(this);
if (GrTraitUtil.isTrait(contextClass)) {
PsiClassType[] extendsTypes = contextClass.getExtendsListTypes();
PsiClassType[] implementsTypes = contextClass.getImplementsListTypes();
PsiClassType[] superTypes =
ArrayUtil.mergeArrays(implementsTypes, extendsTypes, PsiClassType.ARRAY_FACTORY);
return PsiIntersectionType.createIntersection(ArrayUtil.reverseArray(superTypes));
}
return factory.createType((PsiClass) resolved);
}
if (getParent() instanceof GrReferenceExpression) {
return factory.createType((PsiClass) resolved);
} else {
return TypesUtil.createJavaLangClassType(
factory.createType((PsiClass) resolved), getProject(), getResolveScope());
}
}
if (resolved instanceof GrVariable) {
return ((GrVariable) resolved).getDeclaredType();
}
if (resolved instanceof PsiVariable) {
return ((PsiVariable) resolved).getType();
}
if (resolved instanceof PsiMethod) {
PsiMethod method = (PsiMethod) resolved;
if (PropertyUtil.isSimplePropertySetter(method)
&& !method.getName().equals(getReferenceName())) {
return method.getParameterList().getParameters()[0].getType();
}
// 'class' property with explicit generic
PsiClass containingClass = method.getContainingClass();
if (containingClass != null
&& CommonClassNames.JAVA_LANG_OBJECT.equals(containingClass.getQualifiedName())
&& "getClass".equals(method.getName())) {
return TypesUtil.createJavaLangClassType(
PsiImplUtil.getQualifierType(this), getProject(), getResolveScope());
}
return PsiUtil.getSmartReturnType(method);
}
if (resolved == null) {
final PsiType fromClassRef = getTypeFromClassRef(this);
if (fromClassRef != null) {
return fromClassRef;
}
final PsiType fromMapAccess = getTypeFromMapAccess(this);
if (fromMapAccess != null) {
return fromMapAccess;
}
final PsiType fromSpreadOperator = getTypeFromSpreadOperator(this);
if (fromSpreadOperator != null) {
return fromSpreadOperator;
}
}
return null;
}
@NotNull
public Class classToClass(@NotNull PsiClass psiClass) {
Set<String> modifiers = modifiersListToModifiersSet(psiClass.getModifierList());
List<Field> fields = fieldsToFieldList(psiClass.getFields(), psiClass);
List<Element> typeParameters = elementsToElementList(psiClass.getTypeParameters());
List<Type> implementsTypes = typesToNotNullableTypeList(psiClass.getImplementsListTypes());
List<Type> extendsTypes = typesToNotNullableTypeList(psiClass.getExtendsListTypes());
IdentifierImpl name = new IdentifierImpl(psiClass.getName());
List<Expression> baseClassParams = new LinkedList<Expression>();
List<Member> members = getMembers(psiClass);
// we try to find super() call and generate class declaration like that: class A(name: String, i
// : Int) : Base(name)
SuperVisitor visitor = new SuperVisitor();
psiClass.accept(visitor);
Collection<PsiExpressionList> resolvedSuperCallParameters =
visitor.getResolvedSuperCallParameters();
if (resolvedSuperCallParameters.size() == 1) {
baseClassParams.addAll(
expressionsToExpressionList(
resolvedSuperCallParameters.toArray(new PsiExpressionList[1])[0].getExpressions()));
}
// we create primary constructor from all non final fields and fields without initializers
if (!psiClass.isEnum()
&& !psiClass.isInterface()
&& psiClass.getConstructors().length > 1
&& getPrimaryConstructorForThisCase(psiClass) == null) {
List<Field> finalOrWithEmptyInitializer = getFinalOrWithEmptyInitializer(fields);
Map<String, String> initializers = new HashMap<String, String>();
for (Member m : members) {
// and modify secondaries
if (m.getKind() == INode.Kind.CONSTRUCTOR) {
Function f = (Function) m;
if (!((Constructor) f).isPrimary()) {
for (Field fo : finalOrWithEmptyInitializer) {
String init = getDefaultInitializer(fo);
initializers.put(fo.getIdentifier().toKotlin(), init);
}
List<Statement> newStatements = new LinkedList<Statement>();
for (Statement s : f.getBlock().getStatements()) {
boolean isRemoved = false;
if (s.getKind() == INode.Kind.ASSIGNMENT_EXPRESSION) {
AssignmentExpression assignmentExpression = (AssignmentExpression) s;
if (assignmentExpression.getLeft().getKind() == INode.Kind.CALL_CHAIN) {
for (Field fo : finalOrWithEmptyInitializer) {
String id = fo.getIdentifier().toKotlin();
if (((CallChainExpression) assignmentExpression.getLeft())
.getIdentifier()
.toKotlin()
.endsWith("." + id)) {
initializers.put(id, assignmentExpression.getRight().toKotlin());
isRemoved = true;
}
}
}
}
if (!isRemoved) {
newStatements.add(s);
}
}
newStatements.add(
0,
new DummyStringExpression(
"val __ = "
+ createPrimaryConstructorInvocation(
name.toKotlin(), finalOrWithEmptyInitializer, initializers)));
f.setBlock(new Block(newStatements));
}
}
}
members.add(
new Constructor(
Identifier.EMPTY_IDENTIFIER,
Collections.<String>emptySet(),
new ClassType(name),
Collections.<Element>emptyList(),
new ParameterList(createParametersFromFields(finalOrWithEmptyInitializer)),
new Block(createInitStatementsFromFields(finalOrWithEmptyInitializer)),
true));
}
if (psiClass.isInterface()) {
return new Trait(
this,
name,
modifiers,
typeParameters,
extendsTypes,
Collections.<Expression>emptyList(),
implementsTypes,
members);
}
if (psiClass.isEnum()) {
return new Enum(
this,
name,
modifiers,
typeParameters,
Collections.<Type>emptyList(),
Collections.<Expression>emptyList(),
implementsTypes,
members);
}
return new Class(
this,
name,
modifiers,
typeParameters,
extendsTypes,
baseClassParams,
implementsTypes,
members);
}
