From e5ae12ab82e09539b77cfba3fa1c4c31f5b948db Mon Sep 17 00:00:00 2001
From: alirezaarzehgar <alirezaarzehgar82@gmail.com>
Date: Tue, 21 Jan 2025 00:24:28 +0330
Subject: [PATCH] net/url: add panic to unhex for imposible error case

Change-Id: I9f39b3d2a1a0a3e510afc874dd071302b2b0c89e
Reviewed-on: https://go-review.googlesource.com/c/go/+/643555
Reviewed-by: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
---
 src/net/url/url.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/net/url/url.go b/src/net/url/url.go
index 8a8de1c6a8..3acde9fb0f 100644
--- a/src/net/url/url.go
+++ b/src/net/url/url.go
@@ -67,8 +67,9 @@ func unhex(c byte) byte {
 		return c - 'a' + 10
 	case 'A' <= c && c <= 'F':
 		return c - 'A' + 10
+	default:
+		panic("invalid hex character")
 	}
-	return 0
 }
 
 type encoding int
-- 
2.50.0