From 3979e83fcbf5e7bda9a1bad55fa9d594f36158de Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Mon, 25 Sep 2023 23:51:30 +0800
Subject: [PATCH] fixes #22706; turn "unknown hint" into a hint (#22755)

fixes #22706
---
 compiler/commands.nim  | 6 +++++-
 compiler/lineinfos.nim | 2 ++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/compiler/commands.nim b/compiler/commands.nim
index ac5366f10f..8c1da3cd32 100644
--- a/compiler/commands.nim
+++ b/compiler/commands.nim
@@ -205,7 +205,11 @@ proc processSpecificNote*(arg: string, state: TSpecialWord, pass: TCmdLinePass,
     # unfortunately, hintUser and warningUser clash, otherwise implementation would simplify a bit
     let x = findStr(noteMin, noteMax, id, errUnknown)
     if x != errUnknown: notes = {TNoteKind(x)}
-    else: localError(conf, info, "unknown $#: $#" % [name, id])
+    else:
+      if isSomeHint:
+        message(conf, info, hintUnknownHint, id)
+      else:
+        localError(conf, info, "unknown $#: $#" % [name, id])
   case id.normalize
   of "all": # other note groups would be easy to support via additional cases
     notes = if isSomeHint: {hintMin..hintMax} else: {warnMin..warnMax}
diff --git a/compiler/lineinfos.nim b/compiler/lineinfos.nim
index 7cc9c68f5d..544c5295c7 100644
--- a/compiler/lineinfos.nim
+++ b/compiler/lineinfos.nim
@@ -107,6 +107,7 @@ type
     hintUser = "User", hintUserRaw = "UserRaw", hintExtendedContext = "ExtendedContext",
     hintMsgOrigin = "MsgOrigin", # since 1.3.5
     hintDeclaredLoc = "DeclaredLoc", # since 1.5.1
+    hintUnknownHint = "UnknownHint"
 
 const
   MsgKindToStr*: array[TMsgKind, string] = [
@@ -229,6 +230,7 @@ const
     hintExtendedContext: "$1",
     hintMsgOrigin: "$1",
     hintDeclaredLoc: "$1",
+    hintUnknownHint: "unknown hint: $1"
   ]
 
 const