Enum Cow 

pub(crate) enum Cow<'a, B>
where
    B: 'a + ToOwned + ?Sized,
{
    Borrowed(&'a B),
    Owned(<B as ToOwned>::Owned),
}

A clone-on-write smart pointer.

The type Cow is a smart pointer providing clone-on-write functionality: it can enclose and provide immutable access to borrowed data, and clone the data lazily when mutation or ownership is required. The type is designed to work with general borrowed data via the Borrow trait.

Cow implements Deref, which means that you can call non-mutating methods directly on the data it encloses. If mutation is desired, to_mut will obtain a mutable reference to an owned value, cloning if necessary.

If you need reference-counting pointers, note that Rc::make_mut and Arc::make_mut can provide clone-on-write functionality as well.

Examples

use std::borrow::Cow;

fn abs_all(input: &mut Cow<'_, [i32]>) {
    for i in 0..input.len() {
        let v = input[i];
        if v < 0 {
            // Clones into a vector if not already owned.
            input.to_mut()[i] = -v;
        }
    }
}

// No clone occurs because `input` doesn't need to be mutated.
let slice = [0, 1, 2];
let mut input = Cow::from(&slice[..]);
abs_all(&mut input);

// Clone occurs because `input` needs to be mutated.
let slice = [-1, 0, 1];
let mut input = Cow::from(&slice[..]);
abs_all(&mut input);

// No clone occurs because `input` is already owned.
let mut input = Cow::from(vec![-1, 0, 1]);
abs_all(&mut input);

Another example showing how to keep Cow in a struct:

use std::borrow::Cow;

struct Items<'a, X> where [X]: ToOwned<Owned = Vec<X>> {
    values: Cow<'a, [X]>,
}

impl<'a, X: Clone + 'a> Items<'a, X> where [X]: ToOwned<Owned = Vec<X>> {
    fn new(v: Cow<'a, [X]>) -> Self {
        Items { values: v }
    }
}

// Creates a container from borrowed values of a slice
let readonly = [1, 2];
let borrowed = Items::new((&readonly[..]).into());
match borrowed {
    Items { values: Cow::Borrowed(b) } => println!("borrowed {b:?}"),
    _ => panic!("expect borrowed value"),
}

let mut clone_on_write = borrowed;
// Mutates the data from slice into owned vec and pushes a new value on top
clone_on_write.values.to_mut().push(3);
println!("clone_on_write = {:?}", clone_on_write.values);

// The data was mutated. Let's check it out.
match clone_on_write {
    Items { values: Cow::Owned(_) } => println!("clone_on_write contains owned data"),
    _ => panic!("expect owned data"),
}

Variants

Borrowed(&'a B)

Borrowed data.

Owned(<B as ToOwned>::Owned)

Owned data.

Implementations

impl<B> Cow<'_, B>

where B: ToOwned + ?Sized,

pub const fn is_borrowed(c: &Cow<'_, B>) -> bool

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

Returns true if the data is borrowed, i.e. if to_mut would require additional work.

Note: this is an associated function, which means that you have to call it as Cow::is_borrowed(&c) instead of c.is_borrowed(). This is so that there is no conflict with a method on the inner type.

Examples

#![feature(cow_is_borrowed)]
use std::borrow::Cow;

let cow = Cow::Borrowed("moo");
assert!(Cow::is_borrowed(&cow));

let bull: Cow<'_, str> = Cow::Owned("...moo?".to_string());
assert!(!Cow::is_borrowed(&bull));

pub const fn is_owned(c: &Cow<'_, B>) -> bool

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

Returns true if the data is owned, i.e. if to_mut would be a no-op.

Note: this is an associated function, which means that you have to call it as Cow::is_owned(&c) instead of c.is_owned(). This is so that there is no conflict with a method on the inner type.

Examples

#![feature(cow_is_borrowed)]
use std::borrow::Cow;

let cow: Cow<'_, str> = Cow::Owned("moo".to_string());
assert!(Cow::is_owned(&cow));

let bull = Cow::Borrowed("...moo?");
assert!(!Cow::is_owned(&bull));

pub fn to_mut(&mut self) -> &mut <B as ToOwned>::Owned

Acquires a mutable reference to the owned form of the data.

Clones the data if it is not already owned.

Examples

use std::borrow::Cow;

let mut cow = Cow::Borrowed("foo");
cow.to_mut().make_ascii_uppercase();

assert_eq!(
  cow,
  Cow::Owned(String::from("FOO")) as Cow<'_, str>
);

pub fn into_owned(self) -> <B as ToOwned>::Owned

Extracts the owned data.

Clones the data if it is not already owned.

Examples

Calling into_owned on a Cow::Borrowed returns a clone of the borrowed data:

use std::borrow::Cow;

let s = "Hello world!";
let cow = Cow::Borrowed(s);

assert_eq!(
  cow.into_owned(),
  String::from(s)
);

Calling into_owned on a Cow::Owned returns the owned data. The data is moved out of the Cow without being cloned.

use std::borrow::Cow;

let s = "Hello world!";
let cow: Cow<'_, str> = Cow::Owned(String::from(s));

assert_eq!(
  cow.into_owned(),
  String::from(s)
);

Trait Implementations

impl<'i> Accumulate<&'i str> for Cow<'i, str>

Available on crate feature alloc only.

fn initial(_capacity: Option<usize>) -> Cow<'i, str>

Create a new Extend of the correct type

fn accumulate(&mut self, acc: &'i str)

Accumulate the input into an accumulator

impl<'i> Accumulate<Cow<'i, str>> for Cow<'i, str>

Available on crate feature alloc only.

fn initial(_capacity: Option<usize>) -> Cow<'i, str>

Create a new Extend of the correct type

fn accumulate(&mut self, acc: Cow<'i, str>)

Accumulate the input into an accumulator

impl<'i> Accumulate<Cow<'i, str>> for String

Available on crate feature alloc only.

fn initial(capacity: Option<usize>) -> String

Create a new Extend of the correct type

fn accumulate(&mut self, acc: Cow<'i, str>)

Accumulate the input into an accumulator

impl<'i> Accumulate<Cow<'i, str>> for String

Available on crate feature alloc only.

fn initial(capacity: Option<usize>) -> String

Create a new Extend of the correct type

fn accumulate(&mut self, acc: Cow<'i, str>)

Accumulate the input into an accumulator

impl Accumulate<String> for Cow<'_, str>

Available on crate feature alloc only.

fn initial(_capacity: Option<usize>) -> Cow<'_, str>

Create a new Extend of the correct type

fn accumulate(&mut self, acc: String)

Accumulate the input into an accumulator

impl Accumulate<char> for Cow<'_, str>

Available on crate feature alloc only.

fn initial(_capacity: Option<usize>) -> Cow<'_, str>

Create a new Extend of the correct type

fn accumulate(&mut self, acc: char)

Accumulate the input into an accumulator

impl<'a> Add<&'a str> for Cow<'a, str>

Available on non-no_global_oom_handling only.

type Output = Cow<'a, str>

The resulting type after applying the + operator.

fn add(self, rhs: &'a str) -> <Cow<'a, str> as Add<&'a str>>::Output

Performs the + operation.

impl<'a> Add for Cow<'a, str>

Available on non-no_global_oom_handling only.

type Output = Cow<'a, str>

The resulting type after applying the + operator.

fn add(self, rhs: Cow<'a, str>) -> <Cow<'a, str> as Add>::Output

Performs the + operation.

impl<'a> AddAssign<&'a str> for Cow<'a, str>

Available on non-no_global_oom_handling only.

fn add_assign(&mut self, rhs: &'a str)

Performs the += operation.

impl<'a> AddAssign for Cow<'a, str>

Available on non-no_global_oom_handling only.

fn add_assign(&mut self, rhs: Cow<'a, str>)

Performs the += operation.

impl<'a, A> Arbitrary<'a> for Cow<'a, A>

where A: ToOwned + 'a + ?Sized, <A as ToOwned>::Owned: Arbitrary<'a>,

fn arbitrary(u: &mut Unstructured<'a>) -> Result<Cow<'a, A>, Error>

Generate an arbitrary value of Self from the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

impl<'a> Arg for Cow<'a, CStr>

Available on crate feature alloc only.

fn as_str(&self) -> Result<&str, Errno>

Returns a view of this string as a string slice.

fn to_string_lossy(&self) -> Cow<'_, str>

Returns a potentially-lossy rendering of this string as a Cow<'_, str>.

fn as_cow_c_str(&self) -> Result<Cow<'_, CStr>, Errno>

Returns a view of this string as a maybe-owned CStr.

fn into_c_str<'b>(self) -> Result<Cow<'b, CStr>, Errno>

where Cow<'a, CStr>: 'b,

Consumes self and returns a view of this string as a maybe-owned CStr.

fn into_with_c_str<T, F>(self, f: F) -> Result<T, Errno>

where Cow<'a, CStr>: Sized, F: FnOnce(&CStr) -> Result<T, Errno>,

Runs a closure with self passed in as a &CStr.

impl<'a> Arg for Cow<'a, OsStr>

Available on crate feature std only.

fn as_str(&self) -> Result<&str, Errno>

Returns a view of this string as a string slice.

fn to_string_lossy(&self) -> Cow<'_, str>

Returns a potentially-lossy rendering of this string as a Cow<'_, str>.

fn as_cow_c_str(&self) -> Result<Cow<'_, CStr>, Errno>

Returns a view of this string as a maybe-owned CStr.

fn into_c_str<'b>(self) -> Result<Cow<'b, CStr>, Errno>

where Cow<'a, OsStr>: 'b,

Consumes self and returns a view of this string as a maybe-owned CStr.

fn into_with_c_str<T, F>(self, f: F) -> Result<T, Errno>

where Cow<'a, OsStr>: Sized, F: FnOnce(&CStr) -> Result<T, Errno>,

Runs a closure with self passed in as a &CStr.

impl<'a> Arg for Cow<'a, str>

Available on crate feature alloc only.

fn as_str(&self) -> Result<&str, Errno>

Returns a view of this string as a string slice.

fn to_string_lossy(&self) -> Cow<'_, str>

Returns a potentially-lossy rendering of this string as a Cow<'_, str>.

fn as_cow_c_str(&self) -> Result<Cow<'_, CStr>, Errno>

Returns a view of this string as a maybe-owned CStr.

fn into_c_str<'b>(self) -> Result<Cow<'b, CStr>, Errno>

where Cow<'a, str>: 'b,

Consumes self and returns a view of this string as a maybe-owned CStr.

fn into_with_c_str<T, F>(self, f: F) -> Result<T, Errno>

where Cow<'a, str>: Sized, F: FnOnce(&CStr) -> Result<T, Errno>,

Runs a closure with self passed in as a &CStr.

impl AsRef<Path> for Cow<'_, OsStr>

fn as_ref(&self) -> &Path

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<Path> for Cow<'_, OsStr>

fn as_ref(&self) -> &Path

Converts this type into a shared reference of the (usually inferred) input type.

impl<T> AsRef<T> for Cow<'_, T>

where T: ToOwned + ?Sized,

fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.

impl<'a, B> Borrow<B> for Cow<'a, B>

where B: ToOwned + ?Sized,

fn borrow(&self) -> &B

Immutably borrows from an owned value.

impl<B> Clone for Cow<'_, B>

where B: ToOwned + ?Sized,

fn clone(&self) -> Cow<'_, B>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Cow<'_, B>)

Performs copy-assignment from source.

impl<B> Debug for Cow<'_, B>

where B: Debug + ToOwned + ?Sized, <B as ToOwned>::Owned: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<B> Default for Cow<'_, B>

where B: ToOwned + ?Sized, <B as ToOwned>::Owned: Default,

fn default() -> Cow<'_, B>

Creates an owned Cow<’a, B> with the default value for the contained owned value.

impl<B> Deref for Cow<'_, B>

where B: ToOwned + ?Sized,

type Target = B

The resulting type after dereferencing.

fn deref(&self) -> &B

Dereferences the value.

impl<'de, 'a> Deserialize<'de> for Cow<'a, [u8]>

where 'de: 'a,

Available on crate features std or alloc only.

fn deserialize<D>( deserializer: D, ) -> Result<Cow<'a, [u8]>, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

impl<'de, 'a> Deserialize<'de> for Cow<'a, Bytes>

where 'de: 'a,

Available on crate features std or alloc only.

fn deserialize<D>( deserializer: D, ) -> Result<Cow<'a, Bytes>, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

impl<'de, 'a, T> Deserialize<'de> for Cow<'a, T>

where T: ToOwned + ?Sized, <T as ToOwned>::Owned: Deserialize<'de>,

Available on crate features std or alloc only.

fn deserialize<D>( deserializer: D, ) -> Result<Cow<'a, T>, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<B> Display for Cow<'_, B>

where B: Display + ToOwned + ?Sized, <B as ToOwned>::Owned: Display,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<T> EncodeAsVarULE<T> for Cow<'_, T>

where T: VarULE + ToOwned + ?Sized,

Available on crate feature alloc only.

fn encode_var_ule_as_slices<R>(&self, cb: impl FnOnce(&[&[u8]]) -> R) -> R

Calls cb with a piecewise list of byte slices that when concatenated produce the memory pattern of the corresponding instance of T.

fn encode_var_ule_len(&self) -> usize

Return the length, in bytes, of the corresponding VarULE type

fn encode_var_ule_write(&self, dst: &mut [u8])

Write the corresponding VarULE type to the dst buffer. dst should be the size of Self::encode_var_ule_len()

impl<'a> Extend<Cow<'a, OsStr>> for OsString

fn extend<T>(&mut self, iter: T)

where T: IntoIterator<Item = Cow<'a, OsStr>>,

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

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

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

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

Reserves capacity in a collection for the given number of additional elements.

impl<'a> Extend<Cow<'a, str>> for String

Available on non-no_global_oom_handling only.

fn extend<I>(&mut self, iter: I)

where I: IntoIterator<Item = Cow<'a, str>>,

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, s: Cow<'a, str>)

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

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

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

Reserves capacity in a collection for the given number of additional elements.

impl<'b> Extend<Cow<'b, str>> for String

fn extend<'a, S>( &'a mut self, stream: S, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'a>>

where S: IntoStream<Item = Cow<'b, str>> + 'a, <S as IntoStream>::IntoStream: Send,

Extends a collection with the contents of a stream.

impl<'a, T> From<&'a [T]> for Cow<'a, [T]>

where T: Clone,

fn from(s: &'a [T]) -> Cow<'a, [T]>

Creates a Borrowed variant of Cow from a slice.

This conversion does not allocate or clone the data.

impl<'a, T, const N: usize> From<&'a [T; N]> for Cow<'a, [T]>

where T: Clone,

fn from(s: &'a [T; N]) -> Cow<'a, [T]>

Creates a Borrowed variant of Cow from a reference to an array.

This conversion does not allocate or clone the data.

impl<'a> From<&'a AsciiStr> for Cow<'a, AsciiStr>

fn from(s: &'a AsciiStr) -> Cow<'a, AsciiStr>

Converts to this type from the input type.

impl<'a> From<&'a BStr> for Cow<'a, BStr>

Available on crate feature alloc only.

fn from(s: &'a BStr) -> Cow<'a, BStr>

Converts to this type from the input type.

impl<'a> From<&'a BString> for Cow<'a, BStr>

fn from(s: &'a BString) -> Cow<'a, BStr>

Converts to this type from the input type.

impl<'a> From<&'a ByteStr> for Cow<'a, ByteStr>

fn from(s: &'a ByteStr) -> Cow<'a, ByteStr>

Converts to this type from the input type.

impl<'a> From<&'a ByteString> for Cow<'a, ByteStr>

fn from(s: &'a ByteString) -> Cow<'a, ByteStr>

Converts to this type from the input type.

impl<'a> From<&'a CStr> for Cow<'a, CStr>

fn from(s: &'a CStr) -> Cow<'a, CStr>

Converts a CStr into a borrowed Cow without copying or allocating.

impl<'a> From<&'a CString> for Cow<'a, CStr>

fn from(s: &'a CString) -> Cow<'a, CStr>

Converts a &CString into a borrowed Cow without copying or allocating.

impl<'a> From<&'a OsStr> for Cow<'a, OsStr>

fn from(s: &'a OsStr) -> Cow<'a, OsStr>

Converts the string reference into a Cow::Borrowed.

impl<'a> From<&'a OsString> for Cow<'a, OsStr>

fn from(s: &'a OsString) -> Cow<'a, OsStr>

Converts the string reference into a Cow::Borrowed.

impl<'a> From<&'a Path> for Cow<'a, Path>

fn from(s: &'a Path) -> Cow<'a, Path>

Creates a clone-on-write pointer from a reference to Path.

This conversion does not clone or allocate.

impl<'a> From<&'a Path> for Cow<'a, Path>

fn from(s: &'a Path) -> Cow<'a, Path>

Converts to this type from the input type.

impl<'a> From<&'a PathBuf> for Cow<'a, Path>

fn from(p: &'a PathBuf) -> Cow<'a, Path>

Creates a clone-on-write pointer from a reference to PathBuf.

This conversion does not clone or allocate.

impl<'a> From<&'a PathBuf> for Cow<'a, Path>

fn from(p: &'a PathBuf) -> Cow<'a, Path>

Converts to this type from the input type.

impl<'a> From<&'a RawOsStr> for Cow<'a, RawOsStr>

fn from(value: &'a RawOsStr) -> Cow<'a, RawOsStr>

Converts to this type from the input type.

impl<'a> From<&'a String> for Cow<'a, str>

Available on non-no_global_oom_handling only.

fn from(s: &'a String) -> Cow<'a, str>

Converts a String reference into a Borrowed variant. No heap allocation is performed, and the string is not copied.

Example

let s = "eggplant".to_string();
assert_eq!(Cow::from(&s), Cow::Borrowed("eggplant"));

impl<'a, K, V> From<&'a TiSlice<K, V>> for Cow<'a, TiSlice<K, V>>

where V: Clone,

Available on crate feature alloc only.

fn from(value: &'a TiSlice<K, V>) -> Cow<'a, TiSlice<K, V>>

Converts to this type from the input type.

impl<'a, T> From<&'a Vec<T>> for Cow<'a, [T]>

where T: Clone,

fn from(v: &'a Vec<T>) -> Cow<'a, [T]>

Creates a Borrowed variant of Cow from a reference to Vec.

This conversion does not allocate or clone the data.

impl<'a> From<&'a str> for Cow<'a, str>

Available on non-no_global_oom_handling only.

fn from(s: &'a str) -> Cow<'a, str>

Converts a string slice into a Borrowed variant. No heap allocation is performed, and the string is not copied.

Example

assert_eq!(Cow::from("eggplant"), Cow::Borrowed("eggplant"));

impl From<AsciiString> for Cow<'static, AsciiStr>

fn from(string: AsciiString) -> Cow<'static, AsciiStr>

Converts to this type from the input type.

impl<'a> From<BString> for Cow<'a, BStr>

fn from(s: BString) -> Cow<'a, BStr>

Converts to this type from the input type.

impl<'a> From<ByteString> for Cow<'a, ByteStr>

fn from(s: ByteString) -> Cow<'a, ByteStr>

Converts to this type from the input type.

impl<'a> From<CString> for Cow<'a, CStr>

fn from(s: CString) -> Cow<'a, CStr>

Converts a CString into an owned Cow without copying or allocating.

impl<'a, T> From<Cow<'a, [T]>> for Vec<T>

where [T]: ToOwned<Owned = Vec<T>>,

fn from(s: Cow<'a, [T]>) -> Vec<T>

Converts a clone-on-write slice into a vector.

If s already owns a Vec<T>, it will be returned directly. If s is borrowing a slice, a new Vec<T> will be allocated and filled by cloning s’s items into it.

Examples

let o: Cow<'_, [i32]> = Cow::Owned(vec![1, 2, 3]);
let b: Cow<'_, [i32]> = Cow::Borrowed(&[1, 2, 3]);
assert_eq!(Vec::from(o), Vec::from(b));

impl<'a, B> From<Cow<'a, B>> for Arc<B>

where B: ToOwned + ?Sized, Arc<B>: From<&'a B> + From<<B as ToOwned>::Owned>,

fn from(cow: Cow<'a, B>) -> Arc<B>

Creates an atomically reference-counted pointer from a clone-on-write pointer by copying its content.

Example

let cow: Cow<'_, str> = Cow::Borrowed("eggplant");
let shared: Arc<str> = Arc::from(cow);
assert_eq!("eggplant", &shared[..]);

impl<'a> From<Cow<'a, Path>> for PathBuf

fn from(p: Cow<'a, Path>) -> PathBuf

Converts a clone-on-write pointer to an owned path.

Converting from a Cow::Owned does not clone or allocate.

impl<'a, T> From<Cow<'a, T>> for Cow<'a, T>

where T: Cowable + ?Sized,

fn from(value: Cow<'a, T>) -> Cow<'a, T>

Converts to this type from the input type.

impl<'a> From<Cow<'a, str>> for String

Available on non-no_global_oom_handling only.

fn from(s: Cow<'a, str>) -> String

Converts a clone-on-write string to an owned instance of String.

This extracts the owned string, clones the string if it is not already owned.

Example

// If the string is not owned...
let cow: Cow<'_, str> = Cow::Borrowed("eggplant");
// It will allocate on the heap and copy the string.
let owned: String = String::from(cow);
assert_eq!(&owned[..], "eggplant");

impl From<KeyName> for Cow<'static, str>

fn from(name: KeyName) -> Cow<'static, str>

Converts to this type from the input type.

impl<'a> From<OsString> for Cow<'a, OsStr>

fn from(s: OsString) -> Cow<'a, OsStr>

Moves the string into a Cow::Owned.

impl<'a> From<PathBuf> for Cow<'a, Path>

fn from(s: PathBuf) -> Cow<'a, Path>

Creates a clone-on-write pointer from an owned instance of PathBuf.

This conversion does not clone or allocate.

impl<'a> From<PathBuf> for Cow<'a, Path>

fn from(s: PathBuf) -> Cow<'a, Path>

Converts to this type from the input type.

impl<'a> From<PercentDecode<'a>> for Cow<'a, [u8]>

Available on crate feature alloc only.

fn from(iter: PercentDecode<'a>) -> Cow<'a, [u8]>

Converts to this type from the input type.

impl<'a> From<PercentEncode<'a>> for Cow<'a, str>

Available on crate feature alloc only.

fn from(iter: PercentEncode<'a>) -> Cow<'a, str>

Converts to this type from the input type.

impl From<RawOsString> for Cow<'_, RawOsStr>

fn from(value: RawOsString) -> Cow<'_, RawOsStr>

Converts to this type from the input type.

impl<'a> From<String> for Cow<'a, str>

Available on non-no_global_oom_handling only.

fn from(s: String) -> Cow<'a, str>

Converts a String into an Owned variant. No heap allocation is performed, and the string is not copied.

Example

let s = "eggplant".to_string();
let s2 = "eggplant".to_string();
assert_eq!(Cow::from(s), Cow::<'static, str>::Owned(s2));

impl<K, V> From<TiVec<K, V>> for Cow<'_, TiSlice<K, V>>

where V: Clone,

fn from(vec: TiVec<K, V>) -> Cow<'_, TiSlice<K, V>>

Converts to this type from the input type.

impl<'a, T> From<Vec<T>> for Cow<'a, [T]>

where T: Clone,

fn from(v: Vec<T>) -> Cow<'a, [T]>

Creates an Owned variant of Cow from an owned instance of Vec.

This conversion does not allocate or clone the data.

impl<'a, 'b> FromIterator<&'b str> for Cow<'a, str>

Available on non-no_global_oom_handling only.

fn from_iter<I>(it: I) -> Cow<'a, str>

where I: IntoIterator<Item = &'b str>,

Creates a value from an iterator.

impl<'a> FromIterator<AsciiChar> for Cow<'a, str>

Available on non-no_global_oom_handling only.

fn from_iter<T>(it: T) -> Cow<'a, str>

where T: IntoIterator<Item = AsciiChar>,

Creates a value from an iterator.

impl<'a> FromIterator<Cow<'a, OsStr>> for OsString

fn from_iter<I>(iter: I) -> OsString

where I: IntoIterator<Item = Cow<'a, OsStr>>,

Creates a value from an iterator.

impl<'a> FromIterator<Cow<'a, str>> for Box<str>

Available on non-no_global_oom_handling only.

fn from_iter<T>(iter: T) -> Box<str>

where T: IntoIterator<Item = Cow<'a, str>>,

Creates a value from an iterator.

impl<'a> FromIterator<Cow<'a, str>> for String

Available on non-no_global_oom_handling only.

fn from_iter<I>(iter: I) -> String

where I: IntoIterator<Item = Cow<'a, str>>,

Creates a value from an iterator.

impl<'a> FromIterator<String> for Cow<'a, str>

Available on non-no_global_oom_handling only.

fn from_iter<I>(it: I) -> Cow<'a, str>

where I: IntoIterator<Item = String>,

Creates a value from an iterator.

impl<'a, T> FromIterator<T> for Cow<'a, [T]>

where T: Clone,

fn from_iter<I>(it: I) -> Cow<'a, [T]>

where I: IntoIterator<Item = T>,

Creates a value from an iterator.

impl<'a> FromIterator<char> for Cow<'a, str>

Available on non-no_global_oom_handling only.

fn from_iter<I>(it: I) -> Cow<'a, str>

where I: IntoIterator<Item = char>,

Creates a value from an iterator.

impl<'b> FromStream<Cow<'b, str>> for String

fn from_stream<'a, S>( stream: S, ) -> Pin<Box<dyn Future<Output = String> + Send + 'a>>

where S: IntoStream<Item = Cow<'b, str>> + 'a, <S as IntoStream>::IntoStream: Send,

Creates a value from a stream.

impl<'b, T> FromStream<T> for Cow<'b, [T]>

where T: Clone + Send,

fn from_stream<'a, S>( stream: S, ) -> Pin<Box<dyn Future<Output = Cow<'b, [T]>> + Send + 'a>>

where S: IntoStream<Item = T> + 'a, <S as IntoStream>::IntoStream: Send,

Creates a value from a stream.

impl<B> Hash for Cow<'_, B>

where B: Hash + ToOwned + ?Sized,

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a, B> IntoAsciiString for Cow<'a, B>

where B: 'a + ToOwned + ?Sized, &'a B: IntoAsciiString, <B as ToOwned>::Owned: IntoAsciiString,

unsafe fn into_ascii_string_unchecked(self) -> AsciiString

Convert to AsciiString without checking for non-ASCII characters.

fn into_ascii_string(self) -> Result<AsciiString, FromAsciiError<Cow<'a, B>>>

Convert to AsciiString.

impl<'de, 'a, E> IntoDeserializer<'de, E> for Cow<'a, str>

where E: Error,

Available on crate features std or alloc only.

type Deserializer = CowStrDeserializer<'a, E>

The type of the deserializer being converted into.

fn into_deserializer(self) -> CowStrDeserializer<'a, E>

Convert this value into a deserializer.

impl<B> Ord for Cow<'_, B>

where B: Ord + ToOwned + ?Sized,

fn cmp(&self, other: &Cow<'_, B>) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl<T, U> PartialEq<&[U]> for Cow<'_, [T]>

where T: PartialEq<U> + Clone,

fn eq(&self, other: &&[U]) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &&[U]) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> PartialEq<&'a BStr> for Cow<'a, [u8]>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> PartialEq<&'a BStr> for Cow<'a, BStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> PartialEq<&'a BStr> for Cow<'a, str>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<&ByteStr> for Cow<'_, [u8]>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<&ByteStr> for Cow<'_, ByteStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<&ByteStr> for Cow<'_, str>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<&CStr> for Cow<'_, CStr>

Available on non-no_global_oom_handling only.

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<&OsStr> for Cow<'_, OsStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<&OsStr> for Cow<'_, Path>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<&Path> for Cow<'_, OsStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<&Path> for Cow<'_, Path>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b> PartialEq<&'b Path> for Cow<'a, Path>

fn eq(&self, other: &&'b Path) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b> PartialEq<&'a Path> for Cow<'b, OsStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T, U> PartialEq<&mut [U]> for Cow<'_, [T]>

where T: PartialEq<U> + Clone,

fn eq(&self, other: &&mut [U]) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &&mut [U]) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<&str> for Cow<'_, str>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<ByteString> for Cow<'_, [u8]>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<ByteString> for Cow<'_, ByteStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<ByteString> for Cow<'_, str>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<CStr> for Cow<'_, CStr>

Available on non-no_global_oom_handling only.

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<CString> for Cow<'_, CStr>

Available on non-no_global_oom_handling only.

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, CStr>> for CStr

Available on non-no_global_oom_handling only.

fn eq(&self, other: &Cow<'_, CStr>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Cow<'_, CStr>) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, OsStr>> for &OsStr

fn eq(&self, other: &Cow<'_, OsStr>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, OsStr>> for &Path

fn eq(&self, other: &Cow<'_, OsStr>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, OsStr>> for OsStr

fn eq(&self, other: &Cow<'_, OsStr>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, OsStr>> for Path

fn eq(&self, other: &Cow<'_, OsStr>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, OsStr>> for PathBuf

fn eq(&self, other: &Cow<'_, OsStr>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, Path>> for &OsStr

fn eq(&self, other: &Cow<'_, Path>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, Path>> for &Path

fn eq(&self, other: &Cow<'_, Path>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, Path>> for OsStr

fn eq(&self, other: &Cow<'_, Path>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, Path>> for Path

fn eq(&self, other: &Cow<'_, Path>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, Path>> for PathBuf

fn eq(&self, other: &Cow<'_, Path>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, str>> for &str

fn eq(&self, other: &Cow<'_, str>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Cow<'_, str>) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, str>> for String

fn eq(&self, other: &Cow<'_, str>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Cow<'_, str>) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Cow<'_, str>> for str

fn eq(&self, other: &Cow<'_, str>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Cow<'_, str>) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b> PartialEq<Cow<'a, OsStr>> for Path

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b> PartialEq<Cow<'a, Path>> for &'b Path

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b> PartialEq<Cow<'a, Path>> for Path

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b, B, C> PartialEq<Cow<'b, C>> for Cow<'a, B>

where B: PartialEq<C> + ToOwned + ?Sized, C: ToOwned + ?Sized,

fn eq(&self, other: &Cow<'b, C>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b> PartialEq<Cow<'b, OsStr>> for &'a Path

fn eq(&self, other: &Cow<'b, OsStr>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<OsStr> for Cow<'_, OsStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<OsStr> for Cow<'_, Path>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<OsString> for Cow<'_, OsStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<OsString> for Cow<'_, Path>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Path> for Cow<'_, OsStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Path> for Cow<'_, Path>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b> PartialEq<Path> for Cow<'a, OsStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b> PartialEq<Path> for Cow<'a, Path>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<PathBuf> for Cow<'_, OsStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<PathBuf> for Cow<'_, Path>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b> PartialEq<PathBuf> for Cow<'a, OsStr>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, 'b> PartialEq<PathBuf> for Cow<'a, Path>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<String> for Cow<'_, str>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T, U, A> PartialEq<Vec<U, A>> for Cow<'_, [T]>

where A: Allocator, T: PartialEq<U> + Clone,

fn eq(&self, other: &Vec<U, A>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Vec<U, A>) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<str> for Cow<'_, str>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<&ByteStr> for Cow<'_, [u8]>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<&ByteStr> for Cow<'_, ByteStr>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<&ByteStr> for Cow<'_, str>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<&OsStr> for Cow<'_, OsStr>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<&OsStr> for Cow<'_, Path>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<&Path> for Cow<'_, OsStr>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<&Path> for Cow<'_, Path>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, 'b> PartialOrd<&'b Path> for Cow<'a, Path>

fn partial_cmp(&self, other: &&'b Path) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, 'b> PartialOrd<&'a Path> for Cow<'b, OsStr>

fn partial_cmp(&self, other: &&'a Path) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<ByteString> for Cow<'_, [u8]>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<ByteString> for Cow<'_, ByteStr>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<ByteString> for Cow<'_, str>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Cow<'_, OsStr>> for &OsStr

fn partial_cmp(&self, other: &Cow<'_, OsStr>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Cow<'_, OsStr>> for &Path

fn partial_cmp(&self, other: &Cow<'_, OsStr>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Cow<'_, OsStr>> for OsStr

fn partial_cmp(&self, other: &Cow<'_, OsStr>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Cow<'_, OsStr>> for Path

fn partial_cmp(&self, other: &Cow<'_, OsStr>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Cow<'_, OsStr>> for PathBuf

fn partial_cmp(&self, other: &Cow<'_, OsStr>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Cow<'_, Path>> for &OsStr

fn partial_cmp(&self, other: &Cow<'_, Path>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Cow<'_, Path>> for &Path

fn partial_cmp(&self, other: &Cow<'_, Path>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Cow<'_, Path>> for OsStr

fn partial_cmp(&self, other: &Cow<'_, Path>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Cow<'_, Path>> for Path

fn partial_cmp(&self, other: &Cow<'_, Path>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Cow<'_, Path>> for PathBuf

fn partial_cmp(&self, other: &Cow<'_, Path>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, 'b> PartialOrd<Cow<'a, OsStr>> for Path

fn partial_cmp(&self, other: &Cow<'a, OsStr>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, 'b> PartialOrd<Cow<'a, Path>> for &'b Path

fn partial_cmp(&self, other: &Cow<'a, Path>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, 'b> PartialOrd<Cow<'a, Path>> for Path

fn partial_cmp(&self, other: &Cow<'a, Path>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, 'b> PartialOrd<Cow<'b, OsStr>> for &'a Path

fn partial_cmp(&self, other: &Cow<'b, OsStr>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<OsStr> for Cow<'_, OsStr>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<OsStr> for Cow<'_, Path>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<OsString> for Cow<'_, OsStr>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<OsString> for Cow<'_, Path>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Path> for Cow<'_, OsStr>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Path> for Cow<'_, Path>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, 'b> PartialOrd<Path> for Cow<'a, OsStr>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, 'b> PartialOrd<Path> for Cow<'a, Path>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<PathBuf> for Cow<'_, OsStr>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<PathBuf> for Cow<'_, Path>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, 'b> PartialOrd<PathBuf> for Cow<'a, OsStr>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, 'b> PartialOrd<PathBuf> for Cow<'a, Path>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, B> PartialOrd for Cow<'a, B>

where B: PartialOrd + ToOwned + ?Sized,

fn partial_cmp(&self, other: &Cow<'a, B>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a> RawOsStrCow<'a> for Cow<'a, RawOsStr>

fn from_os_str(string: Cow<'a, OsStr>) -> Cow<'a, RawOsStr>

Converts a platform-native string back to this representation.

fn into_os_str(self) -> Cow<'a, OsStr>

Converts this representation back to a platform-native string.

fn into_raw_bytes(self) -> Cow<'a, [u8]>

👎Deprecated:

enable the ‘conversions’ feature

Returns the byte string stored by this container.

impl<'a> Replacer for &'a Cow<'a, [u8]>

fn replace_append(&mut self, caps: &Captures<'_>, dst: &mut Vec<u8>)

Appends possibly empty data to dst to replace the current match.

fn no_expansion(&mut self) -> Option<Cow<'_, [u8]>>

Return a fixed unchanging replacement byte string.

fn by_ref<'r>(&'r mut self) -> ReplacerRef<'r, Self>

Returns a type that implements Replacer, but that borrows and wraps this Replacer.

impl<'a> Replacer for &'a Cow<'a, str>

fn replace_append(&mut self, caps: &Captures<'_>, dst: &mut String)

Appends possibly empty data to dst to replace the current match.

fn no_expansion(&mut self) -> Option<Cow<'_, str>>

Return a fixed unchanging replacement string.

fn by_ref<'r>(&'r mut self) -> ReplacerRef<'r, Self>

Returns a type that implements Replacer, but that borrows and wraps this Replacer.

impl<'a> Replacer for Cow<'a, [u8]>

fn replace_append(&mut self, caps: &Captures<'_>, dst: &mut Vec<u8>)

Appends possibly empty data to dst to replace the current match.

fn no_expansion(&mut self) -> Option<Cow<'_, [u8]>>

Return a fixed unchanging replacement byte string.

fn by_ref<'r>(&'r mut self) -> ReplacerRef<'r, Self>

Returns a type that implements Replacer, but that borrows and wraps this Replacer.

impl<'a> Replacer for Cow<'a, str>

fn replace_append(&mut self, caps: &Captures<'_>, dst: &mut String)

Appends possibly empty data to dst to replace the current match.

fn no_expansion(&mut self) -> Option<Cow<'_, str>>

Return a fixed unchanging replacement string.

fn by_ref<'r>(&'r mut self) -> ReplacerRef<'r, Self>

Returns a type that implements Replacer, but that borrows and wraps this Replacer.

impl<'a> Serialize for Cow<'a, [u8]>

Available on crate features std or alloc only.

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

where S: Serializer,

impl<'a> Serialize for Cow<'a, Bytes>

Available on crate features std or alloc only.

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

where S: Serializer,

impl<'a, T> Serialize for Cow<'a, T>

where T: Serialize + ToOwned + ?Sized,

Available on crate features std or alloc only.

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

where S: Serializer,

Serialize this value into the given Serde serializer.

impl<'s> StringBuilder<'s> for Cow<'s, str>

Available on crate feature alloc only.

fn clear(&mut self)

fn push_str(&mut self, append: &'s str) -> bool

fn push_char(&mut self, append: char) -> bool

impl<'a> ToKey for Cow<'a, str>

fn to_key(&self) -> Key<'_>

Perform the conversion.

impl ToStatic for Cow<'_, [u8]>

type Owned = Cow<'static, [u8]>

fn to_static(&self) -> <Cow<'_, [u8]> as ToStatic>::Owned

impl ToStatic for Cow<'_, str>

type Owned = Cow<'static, str>

fn to_static(&self) -> <Cow<'_, str> as ToStatic>::Owned

impl WriteTomlKey for Cow<'_, str>

Available on crate feature alloc only.

fn write_toml_key<W>(&self, writer: &mut W) -> Result<(), Error>

where W: TomlWrite + ?Sized,

impl WriteTomlKey for Cow<'_, str>

Available on crate feature alloc only.

fn write_toml_key<W>(&self, writer: &mut W) -> Result<(), Error>

where W: TomlWrite + ?Sized,

impl WriteTomlValue for Cow<'_, str>

Available on crate feature alloc only.

fn write_toml_value<W>(&self, writer: &mut W) -> Result<(), Error>

where W: TomlWrite + ?Sized,

impl WriteTomlValue for Cow<'_, str>

Available on crate feature alloc only.

fn write_toml_value<W>(&self, writer: &mut W) -> Result<(), Error>

where W: TomlWrite + ?Sized,

impl<T> DerefPure for Cow<'_, [T]>

where T: Clone,

Available on non-no_global_oom_handling only.

impl<T> DerefPure for Cow<'_, T>

where T: Clone,

impl DerefPure for Cow<'_, str>

Available on non-no_global_oom_handling only.

impl<B> Eq for Cow<'_, B>

where B: Eq + ToOwned + ?Sized,

impl<T> IoSafe for Cow<'_, T>

where T: Clone + IoSafe,