Trait Clause

pub trait Clause<I>:
    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>
where
    I: Interner<Clause = Self>,
{
    // Required methods
    fn as_predicate(self) -> <I as Interner>::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

fn as_predicate(self) -> <I as Interner>::Predicate

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.

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>>>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<'tcx> Clause<TyCtxt<'tcx>> for Clause<'tcx>

fn as_predicate(self) -> Predicate<'tcx>

fn instantiate_supertrait( self, tcx: TyCtxt<'tcx>, trait_ref: Binder<TyCtxt<'tcx>, TraitRef<TyCtxt<'tcx>>>, ) -> Clause<'tcx>

Implementors