public static SimpleFunctionDescriptor createInvoke(FunctionDescriptor fd) {
int arity = fd.getValueParameters().size();
SimpleFunctionDescriptorImpl invokeDescriptor =
new SimpleFunctionDescriptorImpl(
fd.getExpectedThisObject().exists()
? JetStandardClasses.getReceiverFunction(arity)
: JetStandardClasses.getFunction(arity),
Collections.<AnnotationDescriptor>emptyList(),
Name.identifier("invoke"),
CallableMemberDescriptor.Kind.DECLARATION);
invokeDescriptor.initialize(
fd.getReceiverParameter().exists() ? fd.getReceiverParameter().getType() : null,
fd.getExpectedThisObject(),
Collections.<TypeParameterDescriptorImpl>emptyList(),
fd.getValueParameters(),
fd.getReturnType(),
Modality.FINAL,
Visibilities.PUBLIC,
/*isInline = */ false);
return invokeDescriptor;
}
@NotNull
public Collection<JetType> getSupertypesForCallableReference(
@NotNull FunctionDescriptor descriptor) {
ReceiverParameterDescriptor receiverParameter = descriptor.getReceiverParameter();
ReceiverParameterDescriptor expectedThisObject = descriptor.getExpectedThisObject();
List<TypeProjection> typeArguments = new ArrayList<TypeProjection>(2);
ClassDescriptor classDescriptor;
JetType receiverType;
if (receiverParameter != null) {
classDescriptor = kExtensionFunctionImpl;
receiverType = receiverParameter.getType();
typeArguments.add(new TypeProjectionImpl(receiverType));
} else if (expectedThisObject != null) {
classDescriptor = kMemberFunctionImpl;
receiverType = expectedThisObject.getType();
typeArguments.add(new TypeProjectionImpl(receiverType));
} else {
classDescriptor = kFunctionImpl;
receiverType = null;
}
//noinspection ConstantConditions
typeArguments.add(new TypeProjectionImpl(descriptor.getReturnType()));
JetType kFunctionImplType =
new JetTypeImpl(
classDescriptor.getDefaultType().getAnnotations(),
classDescriptor.getTypeConstructor(),
false,
typeArguments,
classDescriptor.getMemberScope(typeArguments));
JetType kFunctionType =
reflectionTypes.getKFunctionType(
Annotations.EMPTY,
receiverType,
DescriptorUtils.getValueParametersTypes(descriptor.getValueParameters()),
descriptor.getReturnType(),
receiverParameter != null);
return Arrays.asList(kFunctionImplType, kFunctionType);
}
public AccessorForFunctionDescriptor(
@NotNull FunctionDescriptor descriptor,
@NotNull DeclarationDescriptor containingDeclaration,
int index) {
super(
containingDeclaration,
Annotations.EMPTY,
Name.identifier(
(descriptor instanceof ConstructorDescriptor ? "$init" : descriptor.getName())
+ "$b$"
+ index),
Kind.DECLARATION);
initialize(
DescriptorUtils.getReceiverParameterType(descriptor.getReceiverParameter()),
descriptor instanceof ConstructorDescriptor
? NO_RECEIVER_PARAMETER
: descriptor.getExpectedThisObject(),
Collections.<TypeParameterDescriptor>emptyList(),
copyValueParameters(descriptor),
descriptor.getReturnType(),
Modality.FINAL,
Visibilities.INTERNAL);
}