pub struct Extensions<'a> { /* private fields */ }
Available on crate feature
std
only.Expand description
An immutable, read-only reference to a Span’s extensions.
Implementations§
Trait Implementations§
Auto Trait Implementations§
impl<'a> Freeze for Extensions<'a>
impl<'a> !RefUnwindSafe for Extensions<'a>
impl<'a> !Send for Extensions<'a>
impl<'a> Sync for Extensions<'a>
impl<'a> Unpin for Extensions<'a>
impl<'a> !UnwindSafe for Extensions<'a>
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more