bjoernager/rust
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Move alloc::Bound to {core,std}::ops

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The stable reexport `std::collections::Bound` is now deprecated.

Another deprecated reexport could be added in `alloc`,
but that crate is unstable.
This commit is contained in:
Simon Sapin 2018-03-19 09:01:17 +01:00 • committed by Manish Goregaokar
parent 409744bcb9
commit c3a63970de
13 changed files with 64 additions and 63 deletions
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51
src/liballoc/lib.rs
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@ -204,57 +204,6 @@ mod std {
pub use core::ops; // RangeFull
}
/// An endpoint of a range of keys.
///
/// # Examples
///
/// `Bound`s are range endpoints:
///
/// ```
/// #![feature(collections_range)]
///
/// use std::collections::range::RangeArgument;
/// use std::collections::Bound::*;
///
/// assert_eq!((..100).start(), Unbounded);
/// assert_eq!((1..12).start(), Included(&1));
/// assert_eq!((1..12).end(), Excluded(&12));
/// ```
///
/// Using a tuple of `Bound`s as an argument to [`BTreeMap::range`].
/// Note that in most cases, it's better to use range syntax (`1..5`) instead.
///
/// ```
/// use std::collections::BTreeMap;
/// use std::collections::Bound::{Excluded, Included, Unbounded};
///
/// let mut map = BTreeMap::new();
/// map.insert(3, "a");
/// map.insert(5, "b");
/// map.insert(8, "c");
///
/// for (key, value) in map.range((Excluded(3), Included(8))) {
/// println!("{}: {}", key, value);
/// }
///
/// assert_eq!(Some((&3, &"a")), map.range((Unbounded, Included(5))).next());
/// ```
///
/// [`BTreeMap::range`]: btree_map/struct.BTreeMap.html#method.range
#[stable(feature = "collections_bound", since = "1.17.0")]
#[derive(Clone, Copy, Debug, Hash, PartialEq, Eq)]
pub enum Bound<T> {
/// An inclusive bound.
#[stable(feature = "collections_bound", since = "1.17.0")]
Included(#[stable(feature = "collections_bound", since = "1.17.0")] T),
/// An exclusive bound.
#[stable(feature = "collections_bound", since = "1.17.0")]
Excluded(#[stable(feature = "collections_bound", since = "1.17.0")] T),
/// An infinite endpoint. Indicates that there is no bound in this direction.
#[stable(feature = "collections_bound", since = "1.17.0")]
Unbounded,
}
/// An intermediate trait for specialization of `Extend`.
#[doc(hidden)]
trait SpecExtend<I: IntoIterator> {