private static String getDescriptorString(@NotNull DeclarationDescriptor descriptor) {
if (descriptor instanceof ClassDescriptor) {
return DescriptorUtils.getFqName(descriptor).asString();
} else if (descriptor instanceof ConstructorDescriptor) {
DeclarationDescriptor containingDeclaration = descriptor.getContainingDeclaration();
assert containingDeclaration != null;
return "constructor for " + containingDeclaration.getName();
} else if (descriptor instanceof PropertyGetterDescriptor) {
return "getter for "
+ ((PropertyGetterDescriptor) descriptor).getCorrespondingProperty().getName();
} else if (descriptor instanceof PropertySetterDescriptor) {
return "setter for "
+ ((PropertySetterDescriptor) descriptor).getCorrespondingProperty().getName();
} else if (descriptor instanceof PropertyDescriptor) {
if (((PropertyDescriptor) descriptor).isVar()) {
return "var " + descriptor.getName();
}
return "val " + descriptor.getName();
} else if (descriptor instanceof FunctionDescriptor) {
return "fun "
+ descriptor.getName()
+ DescriptorRenderer.FQ_NAMES_IN_TYPES.renderFunctionParameters(
(FunctionDescriptor) descriptor);
}
return DescriptorRenderer.FQ_NAMES_IN_TYPES.render(descriptor);
}
@Override
public void visitClassObject(@NotNull JetClassObject classObject) {
JetObjectDeclaration objectDeclaration = classObject.getObjectDeclaration();
DeclarationDescriptor container = owner.getOwnerForChildren();
MutableClassDescriptor classObjectDescriptor =
createClassDescriptorForSingleton(
objectDeclaration, getClassObjectName(container.getName()), ClassKind.CLASS_OBJECT);
PackageLikeBuilder.ClassObjectStatus status =
isEnumEntry(container)
|| isObject(container)
|| c.getTopDownAnalysisParameters().isDeclaredLocally()
? PackageLikeBuilder.ClassObjectStatus.NOT_ALLOWED
: owner.setClassObjectDescriptor(classObjectDescriptor);
switch (status) {
case DUPLICATE:
trace.report(MANY_CLASS_OBJECTS.on(classObject));
break;
case NOT_ALLOWED:
trace.report(CLASS_OBJECT_NOT_ALLOWED.on(classObject));
break;
case OK:
// Everything is OK so no errors to trace.
break;
}
}
public void checkRedeclarationsInInnerClassNames(@NotNull TopDownAnalysisContext c) {
for (ClassDescriptorWithResolutionScopes classDescriptor : c.getDeclaredClasses().values()) {
if (classDescriptor.getKind() == ClassKind.CLASS_OBJECT) {
// Class objects should be considered during analysing redeclarations in classes
continue;
}
Collection<DeclarationDescriptor> allDescriptors =
classDescriptor.getScopeForMemberLookup().getOwnDeclaredDescriptors();
ClassDescriptorWithResolutionScopes classObj = classDescriptor.getClassObjectDescriptor();
if (classObj != null) {
Collection<DeclarationDescriptor> classObjDescriptors =
classObj.getScopeForMemberLookup().getOwnDeclaredDescriptors();
if (!classObjDescriptors.isEmpty()) {
allDescriptors = Lists.newArrayList(allDescriptors);
allDescriptors.addAll(classObjDescriptors);
}
}
Multimap<Name, DeclarationDescriptor> descriptorMap = HashMultimap.create();
for (DeclarationDescriptor desc : allDescriptors) {
if (desc instanceof ClassDescriptor || desc instanceof PropertyDescriptor) {
descriptorMap.put(desc.getName(), desc);
}
}
reportRedeclarations(descriptorMap);
}
}
private static String getJvmInternalFQNameImpl(
BindingTrace bindingTrace, DeclarationDescriptor descriptor) {
if (descriptor instanceof FunctionDescriptor) {
throw new IllegalStateException("requested fq name for function: " + descriptor);
}
if (descriptor.getContainingDeclaration() instanceof ModuleDescriptor
|| descriptor instanceof ScriptDescriptor) {
return "";
}
if (descriptor instanceof ModuleDescriptor) {
throw new IllegalStateException("missed something");
}
if (descriptor instanceof ClassDescriptor) {
ClassDescriptor klass = (ClassDescriptor) descriptor;
if (klass.getKind() == ClassKind.OBJECT || klass.getKind() == ClassKind.CLASS_OBJECT) {
if (klass.getContainingDeclaration() instanceof ClassDescriptor) {
ClassDescriptor containingKlass = (ClassDescriptor) klass.getContainingDeclaration();
if (containingKlass.getKind() == ClassKind.ENUM_CLASS) {
return getJvmInternalName(bindingTrace, containingKlass).getInternalName();
} else {
return getJvmInternalName(bindingTrace, containingKlass).getInternalName()
+ JvmAbi.CLASS_OBJECT_SUFFIX;
}
}
}
JvmClassName name = bindingTrace.getBindingContext().get(FQN, descriptor);
if (name != null) {
return name.getInternalName();
}
}
DeclarationDescriptor container = descriptor.getContainingDeclaration();
if (container == null) {
throw new IllegalStateException("descriptor has no container: " + descriptor);
}
Name name = descriptor.getName();
String baseName = getJvmInternalName(bindingTrace, container).getInternalName();
if (!baseName.isEmpty()) {
return baseName
+ (container instanceof NamespaceDescriptor ? "/" : "$")
+ name.getIdentifier();
}
return name.getIdentifier();
}
private void reportRedeclarations(@NotNull Multimap<Name, DeclarationDescriptor> descriptorMap) {
Set<Pair<PsiElement, Name>> redeclarations = Sets.newHashSet();
for (Name name : descriptorMap.keySet()) {
Collection<DeclarationDescriptor> descriptors = descriptorMap.get(name);
if (descriptors.size() > 1) {
// We mustn't compare PropertyDescriptor with PropertyDescriptor because we do this at
// OverloadResolver
for (DeclarationDescriptor descriptor : descriptors) {
if (descriptor instanceof ClassDescriptor) {
for (DeclarationDescriptor descriptor2 : descriptors) {
if (descriptor == descriptor2) {
continue;
}
redeclarations.add(
Pair.create(
BindingContextUtils.classDescriptorToDeclaration(
trace.getBindingContext(), (ClassDescriptor) descriptor),
descriptor.getName()));
if (descriptor2 instanceof PropertyDescriptor) {
redeclarations.add(
Pair.create(
BindingContextUtils.descriptorToDeclaration(
trace.getBindingContext(), descriptor2),
descriptor2.getName()));
}
}
}
}
}
}
for (Pair<PsiElement, Name> redeclaration : redeclarations) {
trace.report(
REDECLARATION.on(redeclaration.getFirst(), redeclaration.getSecond().asString()));
}
}
private void checkRedeclarationsInPackages(@NotNull TopDownAnalysisContext c) {
for (MutablePackageFragmentDescriptor packageFragment :
Sets.newHashSet(c.getPackageFragments().values())) {
PackageViewDescriptor packageView =
packageFragment.getContainingDeclaration().getPackage(packageFragment.getFqName());
JetScope packageViewScope = packageView.getMemberScope();
Multimap<Name, DeclarationDescriptor> simpleNameDescriptors =
packageFragment.getMemberScope().getDeclaredDescriptorsAccessibleBySimpleName();
for (Name name : simpleNameDescriptors.keySet()) {
// Keep only properties with no receiver
Collection<DeclarationDescriptor> descriptors =
Collections2.filter(
simpleNameDescriptors.get(name),
new Predicate<DeclarationDescriptor>() {
@Override
public boolean apply(@Nullable DeclarationDescriptor descriptor) {
if (descriptor instanceof PropertyDescriptor) {
PropertyDescriptor propertyDescriptor = (PropertyDescriptor) descriptor;
return propertyDescriptor.getReceiverParameter() == null;
}
return true;
}
});
ContainerUtil.addIfNotNull(descriptors, packageViewScope.getPackage(name));
if (descriptors.size() > 1) {
for (DeclarationDescriptor declarationDescriptor : descriptors) {
for (PsiElement declaration : getDeclarationsByDescriptor(declarationDescriptor)) {
assert declaration != null
: "Null declaration for descriptor: "
+ declarationDescriptor
+ " "
+ (declarationDescriptor != null
? DescriptorRenderer.FQ_NAMES_IN_TYPES.render(declarationDescriptor)
: "");
trace.report(
REDECLARATION.on(declaration, declarationDescriptor.getName().asString()));
}
}
}
}
}
}