Struct cow_rc_str::CowRcStr

pub struct CowRcStr<'a> { /* fields omitted */ }

A string that is either shared (heap-allocated and reference-counted) or borrowed.

Equivalent to enum { Borrowed(&'a str), Shared(Rc<String>) }, but stored more compactly.

FIXME(https://github.com/rust-lang/rfcs/issues/1230): use an actual enum if/when the compiler can do this layout optimization.

Trait Implementations

impl<'a> AsRef<str> for CowRcStr<'a>

fn as_ref(&self) -> &str

Performs the conversion.

impl<'a> Borrow<str> for CowRcStr<'a>

fn borrow(&self) -> &str

Immutably borrows from an owned value.

impl<'a> Clone for CowRcStr<'a>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for CowRcStr<'a>

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

Formats the value using the given formatter.

impl<'a> Default for CowRcStr<'a>

fn default() -> Self

Returns the "default value" for a type.

impl<'a> Deref for CowRcStr<'a>

type Target = str

The resulting type after dereferencing.

fn deref(&self) -> &str

Dereferences the value.

impl<'a> Display for CowRcStr<'a>

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

Formats the value using the given formatter.

impl<'a> Drop for CowRcStr<'a>

fn drop(&mut self)

Executes the destructor for this type.

impl<'a> Eq for CowRcStr<'a>

impl<'a> From<&'a str> for CowRcStr<'a>

fn from(s: &'a str) -> Self

Performs the conversion.

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

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

Performs the conversion.

impl<'a> From<String> for CowRcStr<'a>

fn from(s: String) -> Self

Performs the conversion.

impl<'a> Hash for CowRcStr<'a>

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl<'a> Ord for CowRcStr<'a>

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

This method returns an Ordering between self and other.

#[must_use]fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]fn clamp(self, min: Self, max: Self) -> Self

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

Restrict a value to a certain interval.

impl<'a, T: AsRef<str>> PartialEq<T> for CowRcStr<'a>

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

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'a, T: AsRef<str>> PartialOrd<T> for CowRcStr<'a>

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

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

#[must_use]fn lt(&self, other: &Rhs) -> bool

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

#[must_use]fn le(&self, other: &Rhs) -> bool

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

#[must_use]fn gt(&self, other: &Rhs) -> bool

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

#[must_use]fn ge(&self, other: &Rhs) -> bool

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