Enum ItemPredicateId 

pub enum ItemPredicateId<Id = DefId> {
    Required(Id, u32),
    Implied(Id, u32),
    Unmapped(u32),
    TraitSelf,
}

Uniquely identifies a predicate.

Variants

Required(Id, 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(Id, 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<Id> Clone for ItemPredicateId<Id>

where Id: Clone,

fn clone(&self) -> ItemPredicateId<Id>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Id> Debug for ItemPredicateId<Id>

where Id: Debug,

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

Formats the value using the given formatter.

impl<Id> Hash for ItemPredicateId<Id>

where Id: Hash,

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<Id> PartialEq for ItemPredicateId<Id>

where Id: PartialEq,

fn eq(&self, other: &ItemPredicateId<Id>) -> 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<DefId>

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

impl<Id> Eq for ItemPredicateId<Id>

where Id: Eq,

impl<Id> StructuralPartialEq for ItemPredicateId<Id>