Enum ItemPredicateId 

pub enum ItemPredicateId {
    Required(DefId, u32),
    Implied(DefId, u32),
    Unmapped(u32),
    TraitSelf,
}

Uniquely identifies a predicate.

Variants

Required(DefId, u32)

A predicate that counts as “input” for an item, e.g. where clauses on a function or impl. Numbered in some arbitrary but consistent order.

Implied(DefId, u32)

A predicate that counts as “output” of an item, e.g. supertrait clauses in a trait. Note that we count where clauses on a trait as implied. Numbered in some arbitrary but consistent order.

Unmapped(u32)

Predicate inside a non-item binder, e.g. within a dyn Trait. Numbered in some arbitrary but consistent order.

TraitSelf

The special Self: Trait clause available within trait Trait.

Trait Implementations

impl Clone for ItemPredicateId

fn clone(&self) -> ItemPredicateId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ItemPredicateId

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

Formats the value using the given formatter.

impl Hash for ItemPredicateId

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 PartialEq for ItemPredicateId

fn eq(&self, other: &ItemPredicateId) -> 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<'tcx, S: UnderOwnerState<'tcx>> SInto<S, GenericPredicateId> for ItemPredicateId

fn sinto(&self, s: &S) -> GenericPredicateId

impl Copy for ItemPredicateId

impl Eq for ItemPredicateId

impl StructuralPartialEq for ItemPredicateId