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Add #[unstable] to HashState and DefaultState #21890

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Add #[unstable] to HashState and DefaultState #21890

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2 changes: 2 additions & 0 deletions src/libstd/collections/hash/state.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ use hash;
/// algorithm can implement the `Default` trait and create hash maps with the
/// `DefaultState` structure. This state is 0-sized and will simply delegate
/// to `Default` when asked to create a hasher.
#[unstable(feature = "std_misc", reason = "hasher stuff is unclear")]
pub trait HashState {
type Hasher: hash::Hasher;

Expand All @@ -35,6 +36,7 @@ pub trait HashState {
/// default trait.
///
/// This struct has is 0-sized and does not need construction.
#[unstable(feature = "std_misc", reason = "hasher stuff is unclear")]
pub struct DefaultState<H>;

impl<H: Default + hash::Hasher> HashState for DefaultState<H> {
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