time::format_description::parse::format_item

Enum OptionalFormat

enum OptionalFormat {
    False,
    True,
}

Available on (crate features formatting or parsing) and crate feature alloc only.

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False

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True

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impl OptionalFormat

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fn from_modifier_value(value: &Spanned<&[u8]>) -> Result<Self, Error>

Parse the modifier from its string representation.

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impl Default for OptionalFormat

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fn default() -> OptionalFormat

Returns the “default value” for a type. Read more

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impl From<OptionalFormat> for <OptionalFormat as ModifierValue>::Type

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fn from(modifier: OptionalFormat) -> Self

Converts to this type from the input type.

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impl ModifierValue for OptionalFormat

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type Type = bool

Auto Trait Implementations§

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impl UnwindSafe for OptionalFormat

Blanket Implementations§

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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 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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