Enum RustcAssertVarianceKind 

pub enum RustcAssertVarianceKind {
    Covariant,
    Invariant,
    Contravariant,
    Bivariant,
}

Variants

Covariant

Invariant

Contravariant

Bivariant

Trait Implementations

impl Clone for RustcAssertVarianceKind

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RustcAssertVarianceKind

impl Debug for RustcAssertVarianceKind

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

Formats the value using the given formatter.

impl<__D: SpanDecoder> Decodable<__D> for RustcAssertVarianceKind

fn decode(__decoder: &mut __D) -> Self

impl<__E: SpanEncoder> Encodable<__E> for RustcAssertVarianceKind

fn encode(&self, __encoder: &mut __E)

impl Eq for RustcAssertVarianceKind

impl PartialEq for RustcAssertVarianceKind

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

Equality operator ==.

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

Inequality operator !=.

impl PrintAttribute for RustcAssertVarianceKind

fn should_render(&self) -> bool

Whether or not this will render as something meaningful, or if it’s skipped (which will force the containing struct to also skip printing a comma and the field name).

fn print_attribute(&self, __p: &mut Printer)

impl StableHash for RustcAssertVarianceKind

fn stable_hash<__Hcx: StableHashCtxt>( &self, __hcx: &mut __Hcx, __hasher: &mut StableHasher, )

impl StructuralPartialEq for RustcAssertVarianceKind

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

• Covariant: 0 bytes
• Invariant: 0 bytes
• Contravariant: 0 bytes
• Bivariant: 0 bytes