pub struct FromFn<F>(/* private fields */)
where
F: Fn(&mut Formatter<'_>) -> Result<(), Error>;
🔬This is a nightly-only experimental API. (
debug_closure_helpers
)Expand description
Implements fmt::Debug
and fmt::Display
using a function.
Created with from_fn
.
Trait Implementations§
Auto Trait Implementations§
impl<F> Freeze for FromFn<F>where
F: Freeze,
impl<F> RefUnwindSafe for FromFn<F>where
F: RefUnwindSafe,
impl<F> Send for FromFn<F>where
F: Send,
impl<F> Sync for FromFn<F>where
F: Sync,
impl<F> Unpin for FromFn<F>where
F: Unpin,
impl<F> UnwindSafe for FromFn<F>where
F: UnwindSafe,
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
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
Source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
Source§impl<T> Pointable for T
impl<T> Pointable for T
Source§impl<T> PolicyExt for Twhere
T: ?Sized,
impl<T> PolicyExt for Twhere
T: ?Sized,
Source§impl<T> ToStringFallible for Twhere
T: Display,
impl<T> ToStringFallible for Twhere
T: Display,
Source§fn try_to_string(&self) -> Result<String, TryReserveError>
fn try_to_string(&self) -> Result<String, TryReserveError>
ToString::to_string
, but without panic on OOM.