Add Error impls to a few key error types

1 files changed, 14 insertions, 0 deletions

diff --git a/src/libserialize/base64.rs b/src/libserialize/base64.rs
index c999157b89a..e69a0ea7929 100644
--- a/src/libserialize/base64.rs
+++ b/src/libserialize/base64.rs
@@ -13,6 +13,7 @@
 //! Base64 binary-to-text encoding
 use std::fmt;
 use std::string;
+use std::error;
 
 /// Available encoding character sets
 pub enum CharacterSet {
@@ -178,6 +179,19 @@ impl fmt::Show for FromBase64Error {
     }
 }
 
+impl error::Error for FromBase64Error {
+    fn description(&self) -> &str {
+        match *self {
+            InvalidBase64Byte(_, _) => "invalid character",
+            InvalidBase64Length => "invalid length",
+        }
+    }
+
+    fn detail(&self) -> Option<String> {
+        Some(self.to_string())
+    }
+}
+
 impl<'a> FromBase64 for &'a str {
     /**
      * Convert any base64 encoded string (literal, `@`, `&`, or `~`)