W3cubDocs

/Rust

Enum std::borrow::Cow

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

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);

Variants

Borrowed(&'a B)

Borrowed data.

Owned(B::Owned)

Owned data.

Methods

`impl<'a, B> Cow<'a, B> where B: ToOwned + ?Sized` [src]

`fn to_mut(&mut self) -> &mut B::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<[_]> = Cow::Owned(vec![1, 2, 3]);

let hello = cow.to_mut();

assert_eq!(hello, &[1, 2, 3]);

`fn into_owned(self) -> B::Owned`

Extracts the owned data.

Clones the data if it is not already owned.

Examples

use std::borrow::Cow;

let cow: Cow<[_]> = Cow::Owned(vec![1, 2, 3]);

let hello = cow.into_owned();

assert_eq!(vec![1, 2, 3], hello);

Trait Implementations

`impl<'a, B> Display for Cow<'a, B> where B: Display + ToOwned + ?Sized, B::Owned: Display` [src]

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

Formats the value using the given formatter.

`impl<'a, B> PartialOrd<Cow<'a, B>> for Cow<'a, B> where B: PartialOrd + ToOwned + ?Sized` [src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, B> Hash for Cow<'a, B> where B: Hash + ToOwned + ?Sized` [src]

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

Feeds this value into the state given, updating the hasher as necessary.

`fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher`
1.3.0

Feeds a slice of this type into the state provided.

`impl<'a, B> Eq for Cow<'a, B> where B: Eq + ToOwned + ?Sized` [src]

`impl<'a> From<&'a str> for Cow<'a, str>` [src]

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

Performs the conversion.

`impl<'a> From<String> for Cow<'a, str>` [src]

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

Performs the conversion.

`impl<'a, T> From<&'a [T]> for Cow<'a, [T]> where T: Clone`
1.7.0
[src]

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

Performs the conversion.

`impl<'a, T> From<Vec<T>> for Cow<'a, [T]> where T: Clone`
1.7.0
[src]

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

Performs the conversion.

`impl<'a, B> Ord for Cow<'a, B> where B: Ord + ToOwned + ?Sized` [src]

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

This method returns an Ordering between self and other. Read more

`impl<'a, T> AsRef<T> for Cow<'a, T> where T: ToOwned + ?Sized` [src]

`fn as_ref(&self) -> &T`

Performs the conversion.

`impl<'a, B> Clone for Cow<'a, B> where B: ToOwned + ?Sized` [src]

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

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

`impl<'a> Add<&'a str> for Cow<'a, str>`
1.14.0
[src]

`type Output = Cow<'a, str>`

The resulting type after applying the + operator

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

The method for the + operator

`impl<'a> Add<Cow<'a, str>> for Cow<'a, str>`
1.14.0
[src]

`type Output = Cow<'a, str>`

The resulting type after applying the + operator

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

The method for the + operator

`impl<'a, B> Debug for Cow<'a, B> where B: Debug + ToOwned + ?Sized, B::Owned: Debug` [src]

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

Formats the value using the given formatter.

`impl<'a, B> Default for Cow<'a, B> where B: ToOwned + ?Sized, B::Owned: Default`
1.11.0
[src]

`fn default() -> Cow<'a, B>`

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

`impl<'a> FromIterator<char> for Cow<'a, str>`
1.12.0
[src]

`fn from_iter(it: I) -> Cow<'a, str> where I: IntoIterator<Item=char>`

Creates a value from an iterator. Read more

`impl<'a, 'b> FromIterator<&'b str> for Cow<'a, str>`
1.12.0
[src]

`fn from_iter(it: I) -> Cow<'a, str> where I: IntoIterator<Item=&'b str>`

Creates a value from an iterator. Read more

`impl<'a> FromIterator<String> for Cow<'a, str>`
1.12.0
[src]

`fn from_iter(it: I) -> Cow<'a, str> where I: IntoIterator<Item=String>`

Creates a value from an iterator. Read more

`impl<'a, T> FromIterator<T> for Cow<'a, [T]> where T: Clone` [src]

`fn from_iter(it: I) -> Cow<'a, [T]> where I: IntoIterator<Item=T>`

Creates a value from an iterator. Read more

`impl<'a, B> Deref for Cow<'a, B> where B: ToOwned + ?Sized` [src]

`type Target = B`

The resulting type after dereferencing

`fn deref(&self) -> &B`

The method called to dereference a value

`impl<'a> AddAssign<&'a str> for Cow<'a, str>`
1.14.0
[src]

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

The method for the += operator

`impl<'a> AddAssign<Cow<'a, str>> for Cow<'a, str>`
1.14.0
[src]

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

The method for the += operator

`impl<'a, 'b, B, C> PartialEq<Cow<'b, C>> for Cow<'a, B> where B: PartialEq<C> + ToOwned + ?Sized, C: ToOwned + ?Sized` [src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialEq<str> for Cow<'a, str>` [src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialEq<&'b str> for Cow<'a, str>` [src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialEq<String> for Cow<'a, str>` [src]

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

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

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

This method tests for !=.

`impl<'a, 'b, A, B> PartialEq<&'b [B]> for Cow<'a, [A]> where A: Clone + PartialEq` [src]

`fn eq(&self, other: &&'b [B]) -> bool`

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

`fn ne(&self, other: &&'b [B]) -> bool`

This method tests for !=.

`impl<'a, 'b, A, B> PartialEq<&'b mut [B]> for Cow<'a, [A]> where A: Clone + PartialEq` [src]

`fn eq(&self, other: &&'b mut [B]) -> bool`

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

`fn ne(&self, other: &&'b mut [B]) -> bool`

This method tests for !=.

`impl<'a, 'b, A, B> PartialEq<Vec> for Cow<'a, [A]> where A: Clone + PartialEq` [src]

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

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

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

This method tests for !=.

`impl<'a, B> Borrow for Cow<'a, B> where B: ToOwned + ?Sized, B::Owned: 'a` [src]

`fn borrow(&self) -> &B`

Immutably borrows from an owned value. Read more

`impl<'a, 'b> PartialEq<OsStr> for Cow<'a, OsStr>`
1.8.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<OsStr> for Cow<'a, OsStr>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, 'b> PartialEq<&'b OsStr> for Cow<'a, OsStr>`
1.8.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<&'b OsStr> for Cow<'a, OsStr>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, 'b> PartialEq<OsString> for Cow<'a, OsStr>`
1.8.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<OsString> for Cow<'a, OsStr>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a> From<&'a Path> for Cow<'a, Path>`
1.6.0
[src]

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

Performs the conversion.

`impl<'a> From<PathBuf> for Cow<'a, Path>`
1.6.0
[src]

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

Performs the conversion.

`impl<'a> AsRef<Path> for Cow<'a, OsStr>`
1.8.0
[src]

`fn as_ref(&self) -> &Path`

Performs the conversion.

`impl<'a, 'b> PartialEq<Path> for Cow<'a, Path>`
1.6.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<Path> for Cow<'a, Path>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, 'b> PartialEq<&'b Path> for Cow<'a, Path>`
1.6.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<&'b Path> for Cow<'a, Path>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, 'b> PartialEq<PathBuf> for Cow<'a, Path>`
1.6.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<PathBuf> for Cow<'a, Path>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, 'b> PartialEq<PathBuf> for Cow<'a, OsStr>`
1.8.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<PathBuf> for Cow<'a, OsStr>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, 'b> PartialEq<Path> for Cow<'a, OsStr>`
1.8.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<Path> for Cow<'a, OsStr>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, 'b> PartialEq<&'a Path> for Cow<'b, OsStr>`
1.8.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<&'a Path> for Cow<'b, OsStr>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, 'b> PartialEq<OsStr> for Cow<'a, Path>`
1.8.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<OsStr> for Cow<'a, Path>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, 'b> PartialEq<&'b OsStr> for Cow<'a, Path>`
1.8.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<&'b OsStr> for Cow<'a, Path>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

`impl<'a, 'b> PartialEq<OsString> for Cow<'a, Path>`
1.8.0
[src]

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

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

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

This method tests for !=.

`impl<'a, 'b> PartialOrd<OsString> for Cow<'a, Path>`
1.8.0
[src]

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

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

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

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

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

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

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

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

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

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

© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/borrow/enum.Cow.html

Enum std::borrow::Cow

Examples

Variants

Methods

impl<'a, B> Cow<'a, B> where B: ToOwned + ?Sized [src]

fn to_mut(&mut self) -> &mut B::Owned

Examples

fn into_owned(self) -> B::Owned

Examples

Trait Implementations

impl<'a, B> Display for Cow<'a, B> where B: Display + ToOwned + ?Sized, B::Owned: Display [src]

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

impl<'a, B> PartialOrd<Cow<'a, B>> for Cow<'a, B> where B: PartialOrd<B> + ToOwned + ?Sized [src]

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

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

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

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

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

impl<'a, B> Hash for Cow<'a, B> where B: Hash + ToOwned + ?Sized [src]

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

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher1.3.0

impl<'a, B> Eq for Cow<'a, B> where B: Eq + ToOwned + ?Sized [src]

impl<'a> From<&'a str> for Cow<'a, str> [src]

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

impl<'a> From<String> for Cow<'a, str> [src]

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

impl<'a, T> From<&'a [T]> for Cow<'a, [T]> where T: Clone 1.7.0 [src]

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

impl<'a, T> From<Vec<T>> for Cow<'a, [T]> where T: Clone 1.7.0 [src]

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

impl<'a, B> Ord for Cow<'a, B> where B: Ord + ToOwned + ?Sized [src]

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

impl<'a, T> AsRef<T> for Cow<'a, T> where T: ToOwned + ?Sized [src]

fn as_ref(&self) -> &T

impl<'a, B> Clone for Cow<'a, B> where B: ToOwned + ?Sized [src]

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

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

impl<'a> Add<&'a str> for Cow<'a, str> 1.14.0 [src]

type Output = Cow<'a, str>

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

impl<'a> Add<Cow<'a, str>> for Cow<'a, str> 1.14.0 [src]

type Output = Cow<'a, str>

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

impl<'a, B> Debug for Cow<'a, B> where B: Debug + ToOwned + ?Sized, B::Owned: Debug [src]

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

impl<'a, B> Default for Cow<'a, B> where B: ToOwned + ?Sized, B::Owned: Default 1.11.0 [src]

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

impl<'a> FromIterator<char> for Cow<'a, str> 1.12.0 [src]

fn from_iter<I>(it: I) -> Cow<'a, str> where I: IntoIterator<Item=char>

impl<'a, 'b> FromIterator<&'b str> for Cow<'a, str> 1.12.0 [src]

fn from_iter<I>(it: I) -> Cow<'a, str> where I: IntoIterator<Item=&'b str>

impl<'a> FromIterator<String> for Cow<'a, str> 1.12.0 [src]

fn from_iter<I>(it: I) -> Cow<'a, str> where I: IntoIterator<Item=String>

impl<'a, T> FromIterator<T> for Cow<'a, [T]> where T: Clone [src]

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

impl<'a, B> Deref for Cow<'a, B> where B: ToOwned + ?Sized [src]

type Target = B

fn deref(&self) -> &B

impl<'a> AddAssign<&'a str> for Cow<'a, str> 1.14.0 [src]

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

impl<'a> AddAssign<Cow<'a, str>> for Cow<'a, str> 1.14.0 [src]

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

impl<'a, 'b, B, C> PartialEq<Cow<'b, C>> for Cow<'a, B> where B: PartialEq<C> + ToOwned + ?Sized, C: ToOwned + ?Sized [src]

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

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

impl<'a, 'b> PartialEq<str> for Cow<'a, str> [src]

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

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

impl<'a, 'b> PartialEq<&'b str> for Cow<'a, str> [src]

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

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

impl<'a, 'b> PartialEq<String> for Cow<'a, str> [src]

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

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

impl<'a, 'b, A, B> PartialEq<&'b [B]> for Cow<'a, [A]> where A: Clone + PartialEq<B> [src]

fn eq(&self, other: &&'b [B]) -> bool

fn ne(&self, other: &&'b [B]) -> bool

impl<'a, 'b, A, B> PartialEq<&'b mut [B]> for Cow<'a, [A]> where A: Clone + PartialEq<B> [src]

fn eq(&self, other: &&'b mut [B]) -> bool

fn ne(&self, other: &&'b mut [B]) -> bool

`impl<'a, B> Cow<'a, B> where B: ToOwned + ?Sized` [src]

`fn to_mut(&mut self) -> &mut B::Owned`

`fn into_owned(self) -> B::Owned`

`impl<'a, B> Display for Cow<'a, B> where B: Display + ToOwned + ?Sized, B::Owned: Display` [src]

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

`impl<'a, B> PartialOrd<Cow<'a, B>> for Cow<'a, B> where B: PartialOrd<B> + ToOwned + ?Sized` [src]

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

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

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

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

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

`impl<'a, B> Hash for Cow<'a, B> where B: Hash + ToOwned + ?Sized` [src]

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

`fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher`
1.3.0

`impl<'a, B> Eq for Cow<'a, B> where B: Eq + ToOwned + ?Sized` [src]

`impl<'a> From<&'a str> for Cow<'a, str>` [src]

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

`impl<'a> From<String> for Cow<'a, str>` [src]

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

`impl<'a, T> From<&'a [T]> for Cow<'a, [T]> where T: Clone`
1.7.0
[src]

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

`impl<'a, T> From<Vec<T>> for Cow<'a, [T]> where T: Clone`
1.7.0
[src]

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

`impl<'a, B> Ord for Cow<'a, B> where B: Ord + ToOwned + ?Sized` [src]

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

`impl<'a, T> AsRef<T> for Cow<'a, T> where T: ToOwned + ?Sized` [src]

`fn as_ref(&self) -> &T`

`impl<'a, B> Clone for Cow<'a, B> where B: ToOwned + ?Sized` [src]

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

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

`impl<'a> Add<&'a str> for Cow<'a, str>`
1.14.0
[src]

`type Output = Cow<'a, str>`

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

`impl<'a> Add<Cow<'a, str>> for Cow<'a, str>`
1.14.0
[src]

`type Output = Cow<'a, str>`

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

`impl<'a, B> Debug for Cow<'a, B> where B: Debug + ToOwned + ?Sized, B::Owned: Debug` [src]

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

`impl<'a, B> Default for Cow<'a, B> where B: ToOwned + ?Sized, B::Owned: Default`
1.11.0
[src]

`fn default() -> Cow<'a, B>`

`impl<'a> FromIterator<char> for Cow<'a, str>`
1.12.0
[src]

`fn from_iter<I>(it: I) -> Cow<'a, str> where I: IntoIterator<Item=char>`

`impl<'a, 'b> FromIterator<&'b str> for Cow<'a, str>`
1.12.0
[src]

`fn from_iter<I>(it: I) -> Cow<'a, str> where I: IntoIterator<Item=&'b str>`

`impl<'a> FromIterator<String> for Cow<'a, str>`
1.12.0
[src]

`fn from_iter<I>(it: I) -> Cow<'a, str> where I: IntoIterator<Item=String>`

`impl<'a, T> FromIterator<T> for Cow<'a, [T]> where T: Clone` [src]

`fn from_iter<I>(it: I) -> Cow<'a, [T]> where I: IntoIterator<Item=T>`

`impl<'a, B> Deref for Cow<'a, B> where B: ToOwned + ?Sized` [src]

`type Target = B`

`fn deref(&self) -> &B`

`impl<'a> AddAssign<&'a str> for Cow<'a, str>`
1.14.0
[src]

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

`impl<'a> AddAssign<Cow<'a, str>> for Cow<'a, str>`
1.14.0
[src]

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

`impl<'a, 'b, B, C> PartialEq<Cow<'b, C>> for Cow<'a, B> where B: PartialEq<C> + ToOwned + ?Sized, C: ToOwned + ?Sized` [src]

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

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

`impl<'a, 'b> PartialEq<str> for Cow<'a, str>` [src]

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

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

`impl<'a, 'b> PartialEq<&'b str> for Cow<'a, str>` [src]

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

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

`impl<'a, 'b> PartialEq<String> for Cow<'a, str>` [src]

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

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

`impl<'a, 'b, A, B> PartialEq<&'b [B]> for Cow<'a, [A]> where A: Clone + PartialEq<B>` [src]

`fn eq(&self, other: &&'b [B]) -> bool`

`fn ne(&self, other: &&'b [B]) -> bool`

`impl<'a, 'b, A, B> PartialEq<&'b mut [B]> for Cow<'a, [A]> where A: Clone + PartialEq<B>` [src]

`fn eq(&self, other: &&'b mut [B]) -> bool`

`fn ne(&self, other: &&'b mut [B]) -> bool`

`impl<'a, 'b, A, B> PartialEq<Vec<B>> for Cow<'a, [A]> where A: Clone + PartialEq<B>` [src]

`fn eq(&self, other: &Vec<B>) -> bool`

`fn ne(&self, other: &Vec<B>) -> bool`

`impl<'a, B> Borrow<B> for Cow<'a, B> where B: ToOwned + ?Sized, B::Owned: 'a` [src]

`fn borrow(&self) -> &B`

`impl<'a, 'b> PartialEq<OsStr> for Cow<'a, OsStr>`
1.8.0
[src]

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