@Nullable private static Type getThisTypeForFunction( @NotNull FunctionDescriptor functionDescriptor, @NotNull MethodContext context, @NotNull JetTypeMapper typeMapper) { ReceiverParameterDescriptor dispatchReceiver = functionDescriptor.getDispatchReceiverParameter(); if (functionDescriptor instanceof ConstructorDescriptor) { return typeMapper.mapType(functionDescriptor); } else if (dispatchReceiver != null) { return typeMapper.mapType(dispatchReceiver.getType()); } else if (isFunctionLiteral(functionDescriptor) || isLocalFunction(functionDescriptor) || isFunctionExpression(functionDescriptor)) { return typeMapper.mapType(context.getThisDescriptor()); } else { return null; } }