From 6039e0c76997014ed3f78768f8558da98d373e4b Mon Sep 17 00:00:00 2001
From: Robin Krahl <robin.krahl@ireas.org>
Date: Sun, 6 Sep 2020 12:57:16 +0200
Subject: Make *Error, Model, DeviceWrapper non-exhaustive

Previously, all enums defined by the nitrokey crate were exhaustive.
This means that adding new variants to these enums is a breaking change.
To make it possible to add new features to nitrokey-rs without breaking
compatibility, this patch marks the Error, CommandError,
CommunicationError, LibraryError, Model and DeviceWrapper enums as
non-exhaustive.
---
 src/error.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/error.rs')

diff --git a/src/error.rs b/src/error.rs
index 64a2ce0..f1e91c3 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -11,6 +11,7 @@ use crate::device;
 
 /// An error returned by the nitrokey crate.
 #[derive(Debug)]
+#[non_exhaustive]
 pub enum Error {
     /// An error reported by the Nitrokey device in the response packet.
     CommandError(CommandError),
@@ -111,6 +112,7 @@ impl fmt::Display for Error {
 
 /// An error reported by the Nitrokey device in the response packet.
 #[derive(Clone, Copy, Debug, PartialEq)]
+#[non_exhaustive]
 pub enum CommandError {
     /// A packet with a wrong checksum has been sent or received.
     WrongCrc,
@@ -177,6 +179,7 @@ impl fmt::Display for CommandError {
 
 /// A device communication error.
 #[derive(Clone, Copy, Debug, PartialEq)]
+#[non_exhaustive]
 pub enum CommunicationError {
     /// Could not connect to a Nitrokey device.
     NotConnected,
@@ -215,6 +218,7 @@ impl fmt::Display for CommunicationError {
 
 /// A library usage error.
 #[derive(Clone, Copy, Debug, PartialEq)]
+#[non_exhaustive]
 pub enum LibraryError {
     /// A supplied string exceeded a length limit.
     StringTooLong,
-- 
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