Enum ImplPolarity

pub enum ImplPolarity {
    Positive,
    Negative,
    Reservation,
}

Variants

Positive

impl Trait for Type

Negative

impl !Trait for Type

Reservation

#[rustc_reservation_impl] impl Trait for Type

This is a “stability hack”, not a real Rust feature. See #64631 for details.

Implementations

impl ImplPolarity

pub fn as_str(self) -> &'static str

The polarity marker in front of the impl trait ref if applicable.

Trait Implementations

impl Clone for ImplPolarity

fn clone(&self) -> ImplPolarity

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ImplPolarity

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

Formats the value using the given formatter.

impl<__D> Decodable<__D> for ImplPolarity

where __D: TyDecoder,

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

impl Display for ImplPolarity

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

Formats the value using the given formatter.

impl<__E> Encodable<__E> for ImplPolarity

where __E: TyEncoder,

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

impl EraseType for ImplPolarity

type Result = [u8; 1]

impl Hash for ImplPolarity

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

where __H: Hasher,

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<__CTX> HashStable<__CTX> for ImplPolarity

fn hash_stable( &self, __hcx: &mut __CTX, __hasher: &mut StableHasher<SipHasher128>, )

impl<'tcx> Lift<TyCtxt<'tcx>> for ImplPolarity

type Lifted = ImplPolarity

fn lift_to_interner(self, _: TyCtxt<'tcx>) -> Option<Self>

impl Ord for ImplPolarity

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

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl ParameterizedOverTcx for ImplPolarity

type Value<'tcx> = ImplPolarity

impl PartialEq for ImplPolarity

fn eq(&self, other: &ImplPolarity) -> 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 PartialOrd for ImplPolarity

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Copy for ImplPolarity

impl Eq for ImplPolarity

impl StructuralPartialEq for ImplPolarity

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:

• Positive: 0 bytes
• Negative: 0 bytes
• Reservation: 0 bytes