Enum time::format_description::parse::format_item::Item

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pub(super) enum Item<'a> {
    Literal(&'a [u8]),
    Component(Component),
    Optional {
        value: Box<[Self]>,
        span: Span,
    },
    First {
        value: Box<[Box<[Self]>]>,
        span: Span,
    },
}
Expand description

A description of how to format and parse one part of a type.

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Literal(&'a [u8])

A literal string.

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Component(Component)

Part of a type, along with its modifiers.

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Optional

A sequence of optional items.

Fields

§value: Box<[Self]>

The items themselves.

§span: Span

The span of the full sequence.

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First

The first matching parse of a sequence of format descriptions.

Fields

§value: Box<[Box<[Self]>]>

The sequence of format descriptions.

§span: Span

The span of the full sequence.

Implementations§

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impl Item<'_>

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pub(super) fn from_ast(ast_item: Item<'_>) -> Result<Item<'_>, Error>

Parse an AST item into a format item.

Trait Implementations§

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impl From<Item<'_>> for OwnedFormatItem

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fn from(item: Item<'_>) -> Self

Converts to this type from the input type.
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impl<'a> TryFrom<Item<'a>> for BorrowedFormatItem<'a>

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(item: Item<'a>) -> Result<Self, Self::Error>

Performs the conversion.

Auto Trait Implementations§

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impl<'a> Freeze for Item<'a>

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impl<'a> RefUnwindSafe for Item<'a>

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impl<'a> Send for Item<'a>

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impl<'a> Sync for Item<'a>

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impl<'a> Unpin for Item<'a>

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impl<'a> UnwindSafe for Item<'a>

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<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> SizedTypeProperties for T

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#[doc(hidden)] const IS_ZST: bool = _

🔬This is a nightly-only experimental API. (sized_type_properties)
true if this type requires no storage. false if its size is greater than zero. Read more
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#[doc(hidden)] const LAYOUT: Layout = _

🔬This is a nightly-only experimental API. (sized_type_properties)
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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.
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impl<T> TyCompat<Maybe> for T
where T: ?Sized,

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impl<T> TyCompat<T> for T
where T: ?Sized,