FromFn in core::fmt - Rust (original) (raw)
Struct FromFn
pub struct FromFn<F>(/* private fields */)
where
F: Fn(&mut Formatter<'_>) -> Result;🔬This is a nightly-only experimental API. (debug_closure_helpers #117729)
Expand description
Implements fmt::Debug and fmt::Display using a function.
Created with from_fn.
Trait Implementations§
impl Debug for FromFn
where F: Fn(&mut Formatter<'_>) -> Result,
fn fmt(&self, f: &mut Formatter<'_>) -> Result
Formats the value using the given formatter. Read more
impl Display for FromFn
where F: Fn(&mut Formatter<'_>) -> Result,
fn fmt(&self, f: &mut Formatter<'_>) -> Result
Formats the value using the given formatter. Read more
Auto Trait Implementations§
impl Freeze for FromFn
where F: Freeze,
impl RefUnwindSafe for FromFn
where F: RefUnwindSafe,
impl Send for FromFn
where F: Send,
impl Sync for FromFn
where F: Sync,
impl Unpin for FromFn
where F: Unpin,
impl UnwindSafe for FromFn
where F: UnwindSafe,
Blanket Implementations§
impl Any for T
where T: 'static + ?Sized,
fn type_id(&self) -> TypeId
Gets the TypeId of self. Read more
impl Borrow for T
where T: ?Sized,
fn borrow(&self) -> &T
Immutably borrows from an owned value. Read more
impl BorrowMut for T
where T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl From for T
fn from(t: T) -> T
Returns the argument unchanged.
impl<T, U> Into for T
where U: From,
fn into(self) -> U
Calls U::from(self).
That is, this conversion is whatever the implementation of[From](../convert/trait.From.html "trait core::convert::From")<T> for U chooses to do.
impl<T, U> TryFrom for T
where U: Into,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>
Performs the conversion.
impl<T, U> TryInto for T
where U: TryFrom,
type Error = <U as TryFrom>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom>::Error>
Performs the conversion.