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Rollup merge of #105243 - RalfJung:no-op-let, r=Mark-Simulacrum

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remove no-op 'let _ = '

Also see the discussion at https://github.com/rust-lang/rust/pull/93563#discussion_r1034057555.

I don't know why these `Drop` implementations exist to begin with, given that their body does literally nothing, but did not want to change that. (It might affect dropck.)

Cc `````@ibraheemdev````` `````@Amanieu`````
This commit is contained in:
Matthias Krüger 2022-12-06 13:27:42 +01:00 committed by GitHub
commit 7d8e329194
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1 changed files with 3 additions and 9 deletions
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12
library/std/src/sync/mpsc/mod.rs
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@ -629,9 +629,7 @@ impl<T> Clone for Sender<T> {
#[stable(feature = "rust1", since = "1.0.0")]
impl<T> Drop for Sender<T> {
fn drop(&mut self) {
let _ = self.inner;
}
fn drop(&mut self) {}
}
#[stable(feature = "mpsc_debug", since = "1.8.0")]
@ -751,9 +749,7 @@ impl<T> Clone for SyncSender<T> {
#[stable(feature = "rust1", since = "1.0.0")]
impl<T> Drop for SyncSender<T> {
fn drop(&mut self) {
let _ = self.inner;
}
fn drop(&mut self) {}
}
#[stable(feature = "mpsc_debug", since = "1.8.0")]
@ -1094,9 +1090,7 @@ impl<T> IntoIterator for Receiver<T> {
#[stable(feature = "rust1", since = "1.0.0")]
impl<T> Drop for Receiver<T> {
fn drop(&mut self) {
let _ = self.inner;
}
fn drop(&mut self) {}
}
#[stable(feature = "mpsc_debug", since = "1.8.0")]