From c1605ada3340fe1a5b32bd93fc08e0c649dc8a52 Mon Sep 17 00:00:00 2001
From: Richard Walters <rwalters@digitalstirling.com>
Date: Fri, 9 Oct 2020 13:34:59 -0700
Subject: Implement std::error::Error for custom error types

---
 src/lib.rs                               | 6 ++++++
 src/percent_encoded_character_decoder.rs | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index 3b3a02c..375deb3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -178,6 +178,12 @@ impl std::fmt::Display for Error {
     }
 }
 
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        None
+    }
+}
+
 impl From<percent_encoded_character_decoder::Error> for Error {
     fn from(error: percent_encoded_character_decoder::Error) -> Self {
         match error {
diff --git a/src/percent_encoded_character_decoder.rs b/src/percent_encoded_character_decoder.rs
index 2fd2753..781a643 100644
--- a/src/percent_encoded_character_decoder.rs
+++ b/src/percent_encoded_character_decoder.rs
@@ -44,6 +44,12 @@ impl std::fmt::Display for Error {
     }
 }
 
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        None
+    }
+}
+
 pub struct PercentEncodedCharacterDecoder {
     decoded_character: u8,
     digits_left: usize,
-- 
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