pub struct FieldFn<F>(_);
Expand description
A FormatFields
implementation that formats fields by calling a function
or closure.
Trait Implementations
sourceimpl<'a, F> MakeVisitor<&'a mut (dyn Write + 'a)> for FieldFn<F> where
F: Fn(&mut dyn Write, &Field, &dyn Debug) -> Result + Clone,
impl<'a, F> MakeVisitor<&'a mut (dyn Write + 'a)> for FieldFn<F> where
F: Fn(&mut dyn Write, &Field, &dyn Debug) -> Result + Clone,
type Visitor = FieldFnVisitor<'a, F>
type Visitor = FieldFnVisitor<'a, F>
The visitor type produced by this MakeVisitor
.
sourcefn make_visitor(&self, writer: &'a mut dyn Write) -> Self::Visitor
fn make_visitor(&self, writer: &'a mut dyn Write) -> Self::Visitor
Make a new visitor for the provided target
.
Auto Trait Implementations
impl<F> RefUnwindSafe for FieldFn<F> where
F: RefUnwindSafe,
impl<F> Send for FieldFn<F> where
F: Send,
impl<F> Sync for FieldFn<F> where
F: Sync,
impl<F> Unpin for FieldFn<F> where
F: Unpin,
impl<F> UnwindSafe for FieldFn<F> where
F: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T, M> MakeExt<T> for M where
M: MakeVisitor<T> + Sealed<MakeExtMarker<T>>,
impl<T, M> MakeExt<T> for M where
M: MakeVisitor<T> + Sealed<MakeExtMarker<T>>,
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more