Enum SubtypeCheck 

pub enum SubtypeCheck {
    Covariant,
    Contravariant,
}

Represents the kind of subtyping check to perform.

Variants

Covariant

The type is a covariant check.

Contravariant

The type is a contravariant check.

Trait Implementations

impl Clone for SubtypeCheck

fn clone(&self) -> SubtypeCheck

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SubtypeCheck

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

Formats the value using the given formatter.

impl Hash for SubtypeCheck

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 SubtypeCheck

fn eq(&self, other: &SubtypeCheck) -> 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 SubtypeCheck

impl Eq for SubtypeCheck

impl StructuralPartialEq for SubtypeCheck