Enum abi_stable::std_types::cow::RCow

#[repr(C)]
pub enum RCow<'a, B, O = <B as BorrowOwned<'a>>::ROwned> where
    B: BorrowOwned<'a>,  {
    Borrowed(B),
    Owned(O),
    __Impossible {
        ref_: &'a (),
        wtf: Void,
    },
}

Ffi-safe equivalent of ::std::borrow::Cow.

Variants

Borrowed(B)Owned(O)__Impossible

Fields of __Impossible

ref_: &'a ()wtf: Void

Methods

impl<'a, B> RCow<'a, B> where
    B: BorrowOwned<'a>, 

pub fn to_mut(&mut self) -> &mut B::ROwned

Get a mutable reference to the owner form of RCow, converting to the owned form if it is currently the borrowed form.

pub fn into_owned(self) -> B::ROwned

Unwraps into the owned owner form of RCow, converting to the owned form if it is currently the borrowed form.

Trait Implementations

impl<'a, B> IntoReprRust for RCow<'a, B> where
    B: BorrowOwned<'a>, 

type ReprRust = Cow<'a, B::Borrowed>

fn into_rust(self) -> Self::ReprRust

impl<'a, B, O> SharedStableAbi for RCow<'a, B, O> where
    B: BorrowOwned<'a>,
    O: __StableAbi,
    B: __StableAbi,
    <B as SharedStableAbi>::StaticEquivalent: BorrowOwned<'static>, 

type IsNonZeroType = False

Whether this type has a single invalid bit-pattern.

type Kind = __ValueKind

The kind of abi stability of this type,there are 2:

type StaticEquivalent = RCow<'static, __StaticEquivalent<B>, __StaticEquivalent<O>>

A version of the type which does not borrow anything, used to create a UTypeId for doing layout checking.

const S_LAYOUT: &'static TypeLayout

The layout of the type provided by implementors.

const S_ABI_INFO: &'static AbiInfoWrapper

The layout of the type,derived from Self::LAYOUT and associated types.

impl<'a, B> Into<Cow<'a, <B as BorrowOwned<'a>>::Borrowed>> for RCow<'a, B> where
    B: BorrowOwned<'a>, 

fn into(self) -> Cow<'a, B::Borrowed>

Performs the conversion.

impl<'a, B> Eq for RCow<'a, B> where
    B::Borrowed: Eq,
    B: BorrowOwned<'a>, 

impl<'a, B> Copy for RCow<'a, B> where
    B: BorrowOwned<'a>,
    B::ROwned: Copy, 

impl<'a, B> PartialOrd<RCow<'a, B, <B as BorrowOwned<'a>>::ROwned>> for RCow<'a, B> where
    B::Borrowed: PartialOrd,
    B: BorrowOwned<'a>, 

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a, B> PartialEq<RCow<'a, B, <B as BorrowOwned<'a>>::ROwned>> for RCow<'a, B> where
    B::Borrowed: PartialEq,
    B: BorrowOwned<'a>, 

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'a, B> From<Cow<'a, <B as BorrowOwned<'a>>::Borrowed>> for RCow<'a, B> where
    B: BorrowOwned<'a>, 

fn from(this: Cow<'a, B::Borrowed>) -> Self

Performs the conversion.

impl<'a, B> AsRef<<B as BorrowOwned<'a>>::Borrowed> for RCow<'a, B> where
    B: BorrowOwned<'a>, 

fn as_ref(&self) -> &B::Borrowed

Performs the conversion.

impl<'a, B> Clone for RCow<'a, B> where
    B: BorrowOwned<'a>,
    B::ROwned: Clone, 

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, B> Ord for RCow<'a, B> where
    B::Borrowed: Ord,
    B: BorrowOwned<'a>, 

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

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

Restrict a value to a certain interval.

impl<'a, B> Deref for RCow<'a, B> where
    B: BorrowOwned<'a>, 

type Target = B::Borrowed

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, B> Display for RCow<'a, B> where
    B: BorrowOwned<'a>,
    B::Borrowed: Display, 

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'a, B> Debug for RCow<'a, B> where
    B::Borrowed: Debug,
    B: BorrowOwned<'a>, 

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'a, B> Hash for RCow<'a, B> where
    B::Borrowed: Hash,
    B: BorrowOwned<'a>, 

fn hash<H>(&self, state: &mut H) where
    H: Hasher, 

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl<'de, 'a, B> Deserialize<'de> for RCow<'a, B> where
    B: BorrowOwned<'a>,
    Cow<'a, B::Borrowed>: Deserialize<'de>, 

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
    D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl<'a, B> Serialize for RCow<'a, B> where
    B: BorrowOwned<'a>,
    B::Borrowed: Serialize, 

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where
    S: Serializer, 

Serialize this value into the given Serde serializer.