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; }