Trait Clause

Source

pub trait Clause<I: Interner<Clause = Self>>:
    Copy
    + Debug
    + Hash
    + Eq
    + TypeFoldable<I>
    + UpcastFrom<I, Binder<I, ClauseKind<I>>>
    + UpcastFrom<I, TraitRef<I>>
    + UpcastFrom<I, Binder<I, TraitRef<I>>>
    + UpcastFrom<I, TraitPredicate<I>>
    + UpcastFrom<I, Binder<I, TraitPredicate<I>>>
    + UpcastFrom<I, ProjectionPredicate<I>>
    + UpcastFrom<I, Binder<I, ProjectionPredicate<I>>>
    + IntoKind<Kind = Binder<I, ClauseKind<I>>>
    + Elaboratable<I> {
    // Required methods
    fn as_predicate(self) -> I::Predicate;
    fn instantiate_supertrait(
        self,
        cx: I,
        trait_ref: Binder<I, TraitRef<I>>,
    ) -> Self;

    // Provided methods
    fn as_trait_clause(self) -> Option<Binder<I, TraitPredicate<I>>> { ... }
    fn as_host_effect_clause(self) -> Option<Binder<I, HostEffectPredicate<I>>> { ... }
    fn as_projection_clause(self) -> Option<Binder<I, ProjectionPredicate<I>>> { ... }
}

Required Methods§

Source

fn as_predicate(self) -> I::Predicate

Source

fn instantiate_supertrait( self, cx: I, trait_ref: Binder<I, TraitRef<I>>, ) -> Self

Performs a instantiation suitable for going from a poly-trait-ref to supertraits that must hold if that poly-trait-ref holds. This is slightly different from a normal instantiation in terms of what happens with bound regions.