pub struct Reason(/* private fields */);
Methods from Deref<Target = Cow<'static, str>>ยง
Sourcepub fn is_borrowed(&self) -> bool
๐ฌThis is a nightly-only experimental API. (cow_is_borrowed
)
pub fn is_borrowed(&self) -> bool
cow_is_borrowed
)Returns true if the data is borrowed, i.e. if to_mut
would require additional work.
ยงExamples
#![feature(cow_is_borrowed)]
use std::borrow::Cow;
let cow = Cow::Borrowed("moo");
assert!(cow.is_borrowed());
let bull: Cow<'_, str> = Cow::Owned("...moo?".to_string());
assert!(!bull.is_borrowed());
Sourcepub fn is_owned(&self) -> bool
๐ฌThis is a nightly-only experimental API. (cow_is_borrowed
)
pub fn is_owned(&self) -> bool
cow_is_borrowed
)Returns true if the data is owned, i.e. if to_mut
would be a no-op.
ยงExamples
#![feature(cow_is_borrowed)]
use std::borrow::Cow;
let cow: Cow<'_, str> = Cow::Owned("moo".to_string());
assert!(cow.is_owned());
let bull = Cow::Borrowed("...moo?");
assert!(!bull.is_owned());
Trait Implementationsยง
Sourceยงimpl Ord for Reason
impl Ord for Reason
1.21.0 ยท Sourceยงfn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
Sourceยงimpl PartialOrd for Reason
impl PartialOrd for Reason
impl Eq for Reason
impl StructuralPartialEq for Reason
Auto Trait Implementationsยง
impl Freeze for Reason
impl RefUnwindSafe for Reason
impl Send for Reason
impl Sync for Reason
impl Unpin for Reason
impl UnwindSafe for Reason
Blanket Implementationsยง
Sourceยงimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Sourceยงfn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Sourceยงimpl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Sourceยงimpl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Sourceยงfn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.