From 3b4ac1406c42ec751f6cc6fbdc96d7a88e6da75c Mon Sep 17 00:00:00 2001
From: "Neal H. Walfield" <neal@pep.foundation>
Date: Wed, 5 Jun 2019 17:26:19 +0200
Subject: rfc2822: Improve expect message

---
 rfc2822/src/grammar.lalrpop | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rfc2822/src/grammar.lalrpop b/rfc2822/src/grammar.lalrpop
index 0df87445..4f664c5c 100644
--- a/rfc2822/src/grammar.lalrpop
+++ b/rfc2822/src/grammar.lalrpop
@@ -645,7 +645,8 @@ addr_spec : Vec<Component> = {
 
         // The local part may start with comments and the domain part
         // may end with comments.
-        let local_part = l.pop().expect("empty local_part");
+        let local_part = l.pop()
+            .expect(&format!("empty local-part ({:?})", input));
         let domain = d.remove(0);
 
         let mut v = components_merge(
-- 
cgit v1.2.3