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| author | Taylor Cramer <cramertj@google.com> | 2018-05-22 17:10:14 -0700 |
|---|---|---|
| committer | Taylor Cramer <cramertj@google.com> | 2018-05-22 17:24:49 -0700 |
| commit | 640f6f07494ece4ebe7e4d9680fff9a83ab4b0d2 (patch) | |
| tree | c133b32639572dd26b335b2759416f081274fbf0 /src/libcore | |
| parent | a44abfdc29ee66ec1d51c2389405cbac479f35a7 (diff) | |
| download | rust-640f6f07494ece4ebe7e4d9680fff9a83ab4b0d2.tar.gz rust-640f6f07494ece4ebe7e4d9680fff9a83ab4b0d2.zip | |
Add Pinned type for opting out of Unpin on stable
Diffstat (limited to 'src/libcore')
| -rw-r--r-- | src/libcore/marker.rs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/libcore/marker.rs b/src/libcore/marker.rs index d4a87b13f04..77db165bcbd 100644 --- a/src/libcore/marker.rs +++ b/src/libcore/marker.rs @@ -607,6 +607,16 @@ unsafe impl<'a, T: ?Sized> Freeze for &'a mut T {} #[unstable(feature = "pin", issue = "49150")] pub auto trait Unpin {} +/// A type which does not implement `Unpin`. +/// +/// If a type contains a `Pinned`, it will not implement `Unpin` by default. +#[unstable(feature = "pin", issue = "49150")] +#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)] +pub struct Pinned; + +#[unstable(feature = "pin", issue = "49150")] +impl !Unpin for Pinned {} + /// Implementations of `Copy` for primitive types. /// /// Implementations that cannot be described in Rust |