From 42d51b88069a4f534633d90c01d46db59d458652 Mon Sep 17 00:00:00 2001
From: Botahamec <botahamec@outlook.com>
Date: Sun, 23 Oct 2022 13:17:29 -0400
Subject: Implement Error for Exun<E, RawUnexpected>

---
 src/exun.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/exun.rs b/src/exun.rs
index 5f6bb43..5e9a8e0 100644
--- a/src/exun.rs
+++ b/src/exun.rs
@@ -39,6 +39,16 @@ impl<E: Error + 'static, U: Error + 'static> Error for Exun<E, U> {
 	}
 }
 
+#[cfg(feature = "std")]
+impl<E: Error + 'static> Error for Exun<E, RawUnexpected> {
+	fn source(&self) -> Option<&(dyn Error + 'static)> {
+		match self {
+			Expected(ref e) => Some(e),
+			Unexpected(ref u) => u.source(),
+		}
+	}
+}
+
 #[cfg(feature = "std")]
 impl<E: Error, U> From<E> for Exun<E, U> {
 	fn from(e: E) -> Self {
-- 
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