public static void reportCyclicInheritanceHierarchyError(
@NotNull BindingTrace trace,
@NotNull ClassDescriptor classDescriptor,
@NotNull ClassDescriptor superclass) {
PsiElement psiElement =
BindingContextUtils.classDescriptorToDeclaration(
trace.getBindingContext(), classDescriptor);
PsiElement elementToMark = null;
if (psiElement instanceof JetClassOrObject) {
JetClassOrObject classOrObject = (JetClassOrObject) psiElement;
for (JetDelegationSpecifier delegationSpecifier : classOrObject.getDelegationSpecifiers()) {
JetTypeReference typeReference = delegationSpecifier.getTypeReference();
if (typeReference == null) continue;
JetType supertype = trace.get(TYPE, typeReference);
if (supertype != null && supertype.getConstructor() == superclass.getTypeConstructor()) {
elementToMark = typeReference;
}
}
}
if (elementToMark == null && psiElement instanceof PsiNameIdentifierOwner) {
PsiNameIdentifierOwner namedElement = (PsiNameIdentifierOwner) psiElement;
PsiElement nameIdentifier = namedElement.getNameIdentifier();
if (nameIdentifier != null) {
elementToMark = nameIdentifier;
}
}
if (elementToMark != null) {
trace.report(CYCLIC_INHERITANCE_HIERARCHY.on(elementToMark));
}
}
@NotNull
private static AnonymousFunctionDescriptor createFunctionDescriptor(
@NotNull JetFunctionLiteralExpression expression,
@NotNull ExpressionTypingContext context,
boolean functionTypeExpected) {
JetFunctionLiteral functionLiteral = expression.getFunctionLiteral();
JetTypeReference receiverTypeRef = functionLiteral.getReceiverTypeRef();
AnonymousFunctionDescriptor functionDescriptor =
new AnonymousFunctionDescriptor(
context.scope.getContainingDeclaration(),
Collections.<AnnotationDescriptor>emptyList(),
CallableMemberDescriptor.Kind.DECLARATION);
List<ValueParameterDescriptor> valueParameterDescriptors =
createValueParameterDescriptors(
context, functionLiteral,
functionDescriptor, functionTypeExpected);
JetType effectiveReceiverType;
if (receiverTypeRef == null) {
if (functionTypeExpected) {
effectiveReceiverType = KotlinBuiltIns.getInstance().getReceiverType(context.expectedType);
} else {
effectiveReceiverType = null;
}
} else {
effectiveReceiverType =
context
.expressionTypingServices
.getTypeResolver()
.resolveType(context.scope, receiverTypeRef, context.trace, true);
}
functionDescriptor.initialize(
effectiveReceiverType,
ReceiverParameterDescriptor.NO_RECEIVER_PARAMETER,
Collections.<TypeParameterDescriptorImpl>emptyList(),
valueParameterDescriptors,
/*unsubstitutedReturnType = */ null,
Modality.FINAL,
Visibilities.LOCAL);
BindingContextUtils.recordFunctionDeclarationToDescriptor(
context.trace, functionLiteral, functionDescriptor);
return functionDescriptor;
}