Enum Mutability

pub enum Mutability {
    Immutable,
    Mutable,
    Reference,
}

The mutability attribute of a variable.

Variants

Immutable

The variable can’t be changed.

Mutable

The variable can be changed locally.

Reference

Only relevant for a parameter. The parameter is an in-out parameter and a change in it affects the outer scope.

Trait Implementations

impl Clone for Mutability

fn clone(&self) -> Mutability

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Mutability

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

Formats the value using the given formatter.

impl Hash for Mutability

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

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 PartialEq for Mutability

fn eq(&self, other: &Mutability) -> 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 Copy for Mutability

impl Eq for Mutability

impl StructuralPartialEq for Mutability