pub(super) enum Item<'a> {
    Literal(Spanned<&'a [u8]>),
    EscapedBracket {
        _first: Unused<Location>,
        _second: Unused<Location>,
    },
    Component {
        _opening_bracket: Unused<Location>,
        _leading_whitespace: Unused<Option<Spanned<&'a [u8]>>>,
        name: Spanned<&'a [u8]>,
        modifiers: Box<[Modifier<'a>]>,
        _trailing_whitespace: Unused<Option<Spanned<&'a [u8]>>>,
        _closing_bracket: Unused<Location>,
    },
    Optional {
        opening_bracket: Location,
        _leading_whitespace: Unused<Option<Spanned<&'a [u8]>>>,
        _optional_kw: Unused<Spanned<&'a [u8]>>,
        _whitespace: Unused<Spanned<&'a [u8]>>,
        nested_format_description: NestedFormatDescription<'a>,
        closing_bracket: Location,
    },
    First {
        opening_bracket: Location,
        _leading_whitespace: Unused<Option<Spanned<&'a [u8]>>>,
        _first_kw: Unused<Spanned<&'a [u8]>>,
        _whitespace: Unused<Spanned<&'a [u8]>>,
        nested_format_descriptions: Box<[NestedFormatDescription<'a>]>,
        closing_bracket: Location,
    },
}
Available on (crate features formatting or parsing) and crate feature alloc only.
Expand description

One part of a complete format description.

Variants§

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Literal(Spanned<&'a [u8]>)

A literal string, formatted and parsed as-is.

This should never be present inside a nested format description.

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EscapedBracket

Fields

§_first: Unused<Location>

The first bracket.

§_second: Unused<Location>

The second bracket.

A sequence of brackets. The first acts as the escape character.

This should never be present if the lexer has BACKSLASH_ESCAPE set to true.

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Component

Fields

§_opening_bracket: Unused<Location>

Where the opening bracket was in the format string.

§_leading_whitespace: Unused<Option<Spanned<&'a [u8]>>>

Whitespace between the opening bracket and name.

§name: Spanned<&'a [u8]>

The name of the component.

§modifiers: Box<[Modifier<'a>]>

The modifiers for the component.

§_trailing_whitespace: Unused<Option<Spanned<&'a [u8]>>>

Whitespace between the modifiers and closing bracket.

§_closing_bracket: Unused<Location>

Where the closing bracket was in the format string.

Part of a type, along with its modifiers.

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Optional

Fields

§opening_bracket: Location

Where the opening bracket was in the format string.

§_leading_whitespace: Unused<Option<Spanned<&'a [u8]>>>

Whitespace between the opening bracket and “optional”.

§_optional_kw: Unused<Spanned<&'a [u8]>>

The “optional” keyword.

§_whitespace: Unused<Spanned<&'a [u8]>>

Whitespace between the “optional” keyword and the opening bracket.

§nested_format_description: NestedFormatDescription<'a>

The items within the optional sequence.

§closing_bracket: Location

Where the closing bracket was in the format string.

An optional sequence of items.

§

First

Fields

§opening_bracket: Location

Where the opening bracket was in the format string.

§_leading_whitespace: Unused<Option<Spanned<&'a [u8]>>>

Whitespace between the opening bracket and “first”.

§_first_kw: Unused<Spanned<&'a [u8]>>

The “first” keyword.

§_whitespace: Unused<Spanned<&'a [u8]>>

Whitespace between the “first” keyword and the opening bracket.

§nested_format_descriptions: Box<[NestedFormatDescription<'a>]>

The sequences of items to try.

§closing_bracket: Location

Where the closing bracket was in the format string.

The first matching parse of a sequence of items.

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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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.