From 53981fd70a8af4dd0903e3b36d763c895e1073cc Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Wed, 13 Sep 2023 09:38:11 +0200
Subject: [PATCH] Fix post-return compilation warning

---
 src/preserves.nim | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/preserves.nim b/src/preserves.nim
index aec2206..afde44f 100644
--- a/src/preserves.nim
+++ b/src/preserves.nim
@@ -1171,10 +1171,11 @@ proc fromPreserve*[T, E](v: var T; pr: Preserve[E]): bool {.gcsafe.} =
     result = fromPreserveHook(v, pr)
       # a previous branch determined that the hook does not compile but
       # calling it here explicitly produces a reasonable compiler error
-  if not result:
-    trace T, " !- ", pr
-  else:
-    trace T, " <- ", pr
+  when defined(tracePreserves):
+    if not result:
+      trace T, " !- ", pr
+    else:
+      trace T, " <- ", pr
 
 proc preserveTo*(pr: Preserve; T: typedesc): Option[T] =
   ## Reverse of `toPreserve`.