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Struct slog::FnValue

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pub struct FnValue<V: Value, F>(pub F)
where
    F: for<'c, 'd> Fn(&'c Record<'d>) -> V;
Expand description

Explicit lazy-closure Value

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§0: F

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impl<'a, V: 'a + Value, F> Value for FnValue<V, F>where F: 'a + for<'c, 'd> Fn(&'c Record<'d>) -> V,

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fn serialize( &self, record: &Record<'_>, key: Key, serializer: &mut dyn Serializer ) -> Result

Serialize self into Serializer Read more

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impl<V, F> RefUnwindSafe for FnValue<V, F>where F: RefUnwindSafe,

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impl<V, F> Send for FnValue<V, F>where F: Send,

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impl<V, F> Sync for FnValue<V, F>where F: Sync,

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impl<V, F> Unpin for FnValue<V, F>where F: Unpin,

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impl<V, F> UnwindSafe for FnValue<V, F>where F: UnwindSafe,

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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, 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.
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impl<T> SendSyncUnwindSafe for Twhere T: Send + Sync + UnwindSafe + ?Sized,