From 6577a7622d5053f35c16eed47516265c98e5212e Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Sat, 25 Jan 2020 11:59:11 +0100
Subject: Add print_time helper

---
 crates/ra_prof/src/lib.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'crates/ra_prof/src')

diff --git a/crates/ra_prof/src/lib.rs b/crates/ra_prof/src/lib.rs
index da541005a..c7973ddf4 100644
--- a/crates/ra_prof/src/lib.rs
+++ b/crates/ra_prof/src/lib.rs
@@ -106,6 +106,21 @@ pub fn profile(desc: &str) -> Profiler {
     })
 }
 
+pub fn print_time(desc: &str) -> impl Drop + '_ {
+    struct Guard<'a> {
+        desc: &'a str,
+        start: Instant,
+    }
+
+    impl Drop for Guard<'_> {
+        fn drop(&mut self) {
+            eprintln!("{}: {:?}", self.desc, self.start.elapsed())
+        }
+    }
+
+    Guard { desc, start: Instant::now() }
+}
+
 pub struct Profiler {
     desc: Option<String>,
 }
-- 
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