Struct rustc::middle::ty::ProjectionPredicateExperimental

pub struct ProjectionPredicate<'tcx> {
    pub projection_ty: ProjectionTy<'tcx>,
    pub ty: Ty<'tcx>,
}

This kind of predicate has no direct correspondent in the syntax, but it roughly corresponds to the syntactic forms:

1. T : TraitRef<..., Item=Type>
2. <T as TraitRef<...>>::Item == Type (NYI)

In particular, form #1 is "desugared" to the combination of a normal trait predicate (T : TraitRef<...>) and one of these predicates. Form #2 is a broader form in that it also permits equality between arbitrary types. Processing an instance of Form

2 eventually yields one of these ProjectionPredicate

instances to normalize the LHS.

Fields

projection_ty
ty

Trait Implementations

impl<'tcx> Combineable<'tcx> for ProjectionPredicate<'tcx>

fn combine<C: Combine<'tcx>>(combiner: &C, a: &ProjectionPredicate<'tcx>, b: &ProjectionPredicate<'tcx>) -> cres<'tcx, ProjectionPredicate<'tcx>>

impl<'tcx> RegionEscape for ProjectionPredicate<'tcx>

fn has_regions_escaping_depth(&self, depth: u32) -> bool

fn has_escaping_regions(&self) -> bool

impl<'tcx> Repr<'tcx> for ProjectionPredicate<'tcx>

fn repr(&self, tcx: &ctxt<'tcx>) -> String

impl<'tcx> HasProjectionTypes for ProjectionPredicate<'tcx>

fn has_projection_types(&self) -> bool

impl<'tcx> ReferencesError for ProjectionPredicate<'tcx>

fn references_error(&self) -> bool

impl<'tcx> TypeFoldable<'tcx> for ProjectionPredicate<'tcx>

fn fold_with<F: TypeFolder<'tcx>>(&self, folder: &mut F) -> ProjectionPredicate<'tcx>

impl<'tcx> UserString<'tcx> for ProjectionPredicate<'tcx>

fn user_string(&self, tcx: &ctxt<'tcx>) -> String

Derived Implementations

impl<'tcx> Show for ProjectionPredicate<'tcx>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

impl<'tcx, __S: Writer> Hash<__S> for ProjectionPredicate<'tcx>

fn hash(&self, __arg_0: &mut __S)

impl<'tcx> Eq for ProjectionPredicate<'tcx>

fn assert_receiver_is_total_eq(&self)

impl<'tcx> PartialEq for ProjectionPredicate<'tcx>

fn eq(&self, __arg_0: &ProjectionPredicate<'tcx>) -> bool

fn ne(&self, __arg_0: &ProjectionPredicate<'tcx>) -> bool

impl<'tcx> Clone for ProjectionPredicate<'tcx>

fn clone(&self) -> ProjectionPredicate<'tcx>

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