DisplayOption

display_more::display_option

Struct DisplayOption 

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pub struct DisplayOption<'a, T: Display>(pub &'a Option<T>);
Expand description

Implement Display for Option<T> if T is Display.

It outputs a literal string "None" if it is None. Otherwise it invokes the Display implementation for T.

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§0: &'a Option<T>

Trait Implementations§

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impl<T: Display> Display for DisplayOption<'_, T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a, T> Freeze for DisplayOption<'a, T>

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impl<'a, T> RefUnwindSafe for DisplayOption<'a, T>
where T: RefUnwindSafe,

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impl<'a, T> Send for DisplayOption<'a, T>
where T: Sync,

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impl<'a, T> Sync for DisplayOption<'a, T>
where T: Sync,

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impl<'a, T> Unpin for DisplayOption<'a, T>

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impl<'a, T> UnwindSafe for DisplayOption<'a, T>
where T: RefUnwindSafe,

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impl<T> Any for T
where 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 T
where 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 T
where 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 T
where 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 T
where 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 T
where 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 T
where 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.