From 4cee4bc18ff6b0159c00d48622181db145938601 Mon Sep 17 00:00:00 2001
From: Steven <asongala@163.com>
Date: Tue, 11 Apr 2023 01:33:36 +0800
Subject: [PATCH] Fix potential clippy issue of unused variable for
 `start_timer` and `add_to_trace` macros for no `print-trace` feature. (#45)

---
 src/perf_trace.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/perf_trace.rs b/src/perf_trace.rs
index cfda3f0..8766cb5 100644
--- a/src/perf_trace.rs
+++ b/src/perf_trace.rs
@@ -183,14 +183,16 @@ mod inner {
 
     #[macro_export]
     macro_rules! start_timer {
-        ($msg:expr) => {
+        ($msg:expr) => {{
+            let _ = $msg;
             $crate::perf_trace::TimerInfo
-        };
+        }};
     }
     #[macro_export]
     macro_rules! add_to_trace {
         ($title:expr, $msg:expr) => {
             let _ = $msg;
+            let _ = $title;
         };
     }