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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:06:31 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:06:31 +0000
commit2ff14448863ac1a1dd9533461708e29aae170c2d (patch)
tree85b9fea2bbfe3f06473cfa381eed11f273b57c5c /src/tools/clippy/tests/ui/manual_instant_elapsed.rs
parentAdding debian version 1.64.0+dfsg1-1. (diff)
downloadrustc-2ff14448863ac1a1dd9533461708e29aae170c2d.tar.xz
rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.zip
Adding debian version 1.65.0+dfsg1-2.debian/1.65.0+dfsg1-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--src/tools/clippy/tests/ui/manual_instant_elapsed.rs27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/manual_instant_elapsed.rs b/src/tools/clippy/tests/ui/manual_instant_elapsed.rs
new file mode 100644
index 000000000..5b11b8453
--- /dev/null
+++ b/src/tools/clippy/tests/ui/manual_instant_elapsed.rs
@@ -0,0 +1,27 @@
+// run-rustfix
+#![warn(clippy::manual_instant_elapsed)]
+#![allow(clippy::unnecessary_operation)]
+#![allow(unused_variables)]
+#![allow(unused_must_use)]
+
+use std::time::Instant;
+
+fn main() {
+ let prev_instant = Instant::now();
+
+ {
+ // don't influence
+ let another_instant = Instant::now();
+ }
+
+ let duration = Instant::now() - prev_instant;
+
+ // don't catch
+ let duration = prev_instant.elapsed();
+
+ Instant::now() - duration;
+
+ let ref_to_instant = &Instant::now();
+
+ Instant::now() - *ref_to_instant; // to ensure parens are added correctly
+}