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Struct FromFn 

pub struct FromFn<F>(/* private fields */);

Implements fmt::Debug and fmt::Display via the provided closure.

Created with from_fn.

Trait Implementations

1.93.0Source
impl<F> Debug for FromFn<F>where
    F: Fn(&mut Formatter<'_>) -> Result<(), Error>,
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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>
Formats the value using the given formatter. Read more
1.93.0Source
impl<F> Display for FromFn<F>where
    F: Fn(&mut Formatter<'_>) -> Result<(), Error>,
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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>
Formats the value using the given formatter. Read more

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

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impl<T> Any for Twhere
    T: 'static + ?Sized,
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fn type_id(&self) -> TypeId
Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere
    T: ?Sized,
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fn borrow(&self) -> &T
Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere
    T: ?Sized,
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
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impl<T> From<T> for T
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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere
    U: From<T>,
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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToString for Twhere
    T: Display + ?Sized,
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fn to_string(&self) -> String
Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for Twhere
    U: Into<T>,
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type Error = Infallible
The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
    U: TryFrom<T>,
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type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
Performs the conversion.

© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/fmt/struct.FromFn.html