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Item

time::format_description::parse::format_item

Enum Item

pub(super) enum Item<'a, const VERSION: u8> {
    Literal(&'a str),
    Component(AstComponent),
    Optional {
        value: Vec<Self>,
        format: Spanned<bool>,
        span: Span,
    },
    First {
        value: Vec<Vec<Self>>,
        span: Span,
    },
}

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

Expand description

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

Variants§

Literal(&'a str)

A literal string.

Component(AstComponent)

Part of a type, along with its modifiers.

Optional

A sequence of optional items.

Fields

§value: Vec<Self>

The items themselves.

§format: Spanned<bool>

Whether the value should be formatted.

§span: Span

The span of the full sequence.

First

The first matching parse of a sequence of format descriptions.

Fields

§value: Vec<Vec<Self>>

The sequence of format descriptions.

§span: Span

The span of the full sequence.

Implementations§

impl<'a, const VERSION: u8> Item<'a, VERSION>

pub(super) fn optional_from_parts( opening_bracket: Location, modifiers: &[Modifier<'_>], nested_format_descriptions: Vec<NestedFormatDescription<'a, VERSION>>, closing_bracket: Location, ) -> Result<Self, Error>

Trait Implementations§

impl<const VERSION: u8> TryFrom<Item<'_, VERSION>> for OwnedFormatItem

type Error = Error

The type returned in the event of a conversion error.

fn try_from(item: Item<'_, VERSION>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a, const VERSION: u8> TryFrom<Item<'a, VERSION>> for BorrowedFormatItem<'a>

type Error = Error

The type returned in the event of a conversion error.

fn try_from(item: Item<'a, VERSION>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a, const VERSION: u8> TryFrom<Item<'a, VERSION>> for FormatDescriptionV3Inner<'a>

type Error = Error

The type returned in the event of a conversion error.

fn try_from(item: Item<'a, VERSION>) -> Result<Self, Self::Error>

Performs the conversion.

Auto Trait Implementations§

impl<'a, const VERSION: u8> Freeze for Item<'a, VERSION>

impl<'a, const VERSION: u8> RefUnwindSafe for Item<'a, VERSION>

impl<'a, const VERSION: u8> Send for Item<'a, VERSION>

impl<'a, const VERSION: u8> Sync for Item<'a, VERSION>

impl<'a, const VERSION: u8> Unpin for Item<'a, VERSION>

impl<'a, const VERSION: u8> UnsafeUnpin for Item<'a, VERSION>

impl<'a, const VERSION: u8> UnwindSafe for Item<'a, VERSION>

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

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

impl<T> SizedTypeProperties for T

#[doc(hidden)]
const SIZE: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const ALIGN: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const ALIGNMENT: Alignment = _

🔬This is a nightly-only experimental API. (ptr_alignment_type)

#[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

#[doc(hidden)]
const LAYOUT: Layout = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const MAX_SLICE_LEN: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

The largest safe length for a [Self]. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.