#[non_exhaustive]
pub enum BorrowedFormatItem<'a> { Literal(&'a [u8]), Component(Component), Compound(&'a [BorrowedFormatItem<'a>]), Optional(&'a BorrowedFormatItem<'a>), First(&'a [BorrowedFormatItem<'a>]), }
Available on crate feature cookies and (crate features formatting or parsing) only.
Expand description

A complete description of how to format and parse a type.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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Literal(&'a [u8])

Bytes that are formatted as-is.

Note: These bytes should be UTF-8, but are not required to be. The value is passed through String::from_utf8_lossy when necessary.

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Component(Component)

A minimal representation of a single non-literal item.

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Compound(&'a [BorrowedFormatItem<'a>])

A series of literals or components that collectively form a partial or complete description.

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Optional(&'a BorrowedFormatItem<'a>)

A FormatItem that may or may not be present when parsing. If parsing fails, there will be no effect on the resulting struct.

This variant has no effect on formatting, as the value is guaranteed to be present.

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First(&'a [BorrowedFormatItem<'a>])

A series of FormatItems where, when parsing, the first successful parse is used. When formatting, the first element of the slice is used. An empty slice is a no-op when formatting or parsing.

Trait Implementations§

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impl<'a> Clone for BorrowedFormatItem<'a>

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fn clone(&self) -> BorrowedFormatItem<'a>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BorrowedFormatItem<'_>

Available on crate feature alloc only.
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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl<'a> From<&'a [BorrowedFormatItem<'_>]> for BorrowedFormatItem<'a>

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fn from(items: &'a [BorrowedFormatItem<'_>]) -> BorrowedFormatItem<'a>

Converts to this type from the input type.
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impl From<&BorrowedFormatItem<'_>> for OwnedFormatItem

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fn from(item: &BorrowedFormatItem<'_>) -> OwnedFormatItem

Converts to this type from the input type.
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impl From<BorrowedFormatItem<'_>> for OwnedFormatItem

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fn from(item: BorrowedFormatItem<'_>) -> OwnedFormatItem

Converts to this type from the input type.
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impl From<Component> for BorrowedFormatItem<'_>

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fn from(component: Component) -> BorrowedFormatItem<'_>

Converts to this type from the input type.
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impl PartialEq<&[BorrowedFormatItem<'_>]> for BorrowedFormatItem<'_>

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fn eq(&self, rhs: &&[BorrowedFormatItem<'_>]) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<BorrowedFormatItem<'_>> for &[BorrowedFormatItem<'_>]

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fn eq(&self, rhs: &BorrowedFormatItem<'_>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<BorrowedFormatItem<'_>> for Component

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fn eq(&self, rhs: &BorrowedFormatItem<'_>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<Component> for BorrowedFormatItem<'_>

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fn eq(&self, rhs: &Component) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'a> PartialEq for BorrowedFormatItem<'a>

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fn eq(&self, other: &BorrowedFormatItem<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl TryFrom<BorrowedFormatItem<'_>> for Component

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type Error = DifferentVariant

The type returned in the event of a conversion error.
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fn try_from( value: BorrowedFormatItem<'_>, ) -> Result<Component, <Component as TryFrom<BorrowedFormatItem<'_>>>::Error>

Performs the conversion.
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impl<'a> TryFrom<BorrowedFormatItem<'a>> for &[BorrowedFormatItem<'a>]

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type Error = DifferentVariant

The type returned in the event of a conversion error.
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fn try_from( value: BorrowedFormatItem<'a>, ) -> Result<&[BorrowedFormatItem<'a>], <&[BorrowedFormatItem<'a>] as TryFrom<BorrowedFormatItem<'a>>>::Error>

Performs the conversion.
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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<BorrowedFormatItem<'a>, <BorrowedFormatItem<'a> as TryFrom<Item<'a>>>::Error>

Performs the conversion.
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impl<'a> Eq for BorrowedFormatItem<'a>

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impl Formattable for BorrowedFormatItem<'_>

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impl Parsable for BorrowedFormatItem<'_>

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impl<'a> StructuralPartialEq for BorrowedFormatItem<'a>

Auto Trait Implementations§

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impl<'a> Freeze for BorrowedFormatItem<'a>

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impl<'a> RefUnwindSafe for BorrowedFormatItem<'a>

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impl<'a> Send for BorrowedFormatItem<'a>

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impl<'a> Sync for BorrowedFormatItem<'a>

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impl<'a> Unpin for BorrowedFormatItem<'a>

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impl<'a> UnwindSafe for BorrowedFormatItem<'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> CloneToUninit for T
where T: Clone,

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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more