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| author | Konrad Borowski <konrad@borowski.pw> | 2020-01-18 18:35:36 +0100 |
|---|---|---|
| committer | Konrad Borowski <konrad@borowski.pw> | 2020-01-18 18:50:10 +0100 |
| commit | a70b24018936fe59f0a037adfa13f2255d8aa5d2 (patch) | |
| tree | 8f5d0fdb31f426167ddf30852d81be478b47477b /src/libcore | |
| parent | 8c28fe89c7d33953841e8c210e769ba8ce5ceedb (diff) | |
| download | rust-a70b24018936fe59f0a037adfa13f2255d8aa5d2.tar.gz rust-a70b24018936fe59f0a037adfa13f2255d8aa5d2.zip | |
Make iter::Empty<T> implement Send and Sync for any T
Diffstat (limited to 'src/libcore')
| -rw-r--r-- | src/libcore/iter/sources.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libcore/iter/sources.rs b/src/libcore/iter/sources.rs index a65d47cc2c1..25dfc573e41 100644 --- a/src/libcore/iter/sources.rs +++ b/src/libcore/iter/sources.rs @@ -208,6 +208,11 @@ pub fn repeat_with<A, F: FnMut() -> A>(repeater: F) -> RepeatWith<F> { #[stable(feature = "iter_empty", since = "1.2.0")] pub struct Empty<T>(marker::PhantomData<T>); +#[stable(feature = "iter_empty_send_sync", since = "1.42.0")] +unsafe impl<T> Send for Empty<T> {} +#[stable(feature = "iter_empty_send_sync", since = "1.42.0")] +unsafe impl<T> Sync for Empty<T> {} + #[stable(feature = "core_impl_debug", since = "1.9.0")] impl<T> fmt::Debug for Empty<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |