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HashMap feature parity: impl Extend, notes on more

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Chris Morgan 2022-01-25 21:53:49 +11:00
parent 0a1c85f865
commit 2bcbd9c551
1 changed files with 15 additions and 0 deletions
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15
src/lib.rs
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@ -71,6 +71,10 @@ macro_rules! impl_common_methods {
self.$field.shrink_to_fit() self.$field.shrink_to_fit()
} }
// Additional stable methods (as of 1.60.0-nightly) that could be added:
// try_reserve(&mut self, additional: usize) -> Result<(), TryReserveError> (1.57.0)
// shrink_to(&mut self, min_capacity: usize) (1.56.0)
/// Returns the number of items in the collection. /// Returns the number of items in the collection.
#[inline] #[inline]
pub fn len(&self) -> usize { pub fn len(&self) -> usize {
@ -203,6 +207,8 @@ impl<A: ?Sized + UncheckedAnyExt> Map<A> {
} }
} }
// rustc 1.60.0-nightly has another method try_insert that would be nice to add when stable.
/// Removes the `T` value from the collection, /// Removes the `T` value from the collection,
/// returning it if there was one or `None` if there was not. /// returning it if there was one or `None` if there was not.
#[inline] #[inline]
@ -233,6 +239,15 @@ impl<A: ?Sized + UncheckedAnyExt> Map<A> {
} }
} }
impl<A: ?Sized + UncheckedAnyExt> Extend<Box<A>> for Map<A> {
#[inline]
fn extend<T: IntoIterator<Item = Box<A>>>(&mut self, iter: T) {
for item in iter {
let _ = unsafe { self.raw.insert(item.type_id(), item) };
}
}
}
impl<A: ?Sized + UncheckedAnyExt> AsRef<RawMap<A>> for Map<A> { impl<A: ?Sized + UncheckedAnyExt> AsRef<RawMap<A>> for Map<A> {
#[inline] #[inline]
fn as_ref(&self) -> &RawMap<A> { fn as_ref(&self) -> &RawMap<A> {