Trait rustc_middle::ty::visit::TypeVisitor

pub trait TypeVisitor<I>: Sizedwhere
    I: Interner,{
    type BreakTy = !;

    // Provided methods
    fn visit_binder<T>(
        &mut self,
        t: &<I as Interner>::Binder<T>
    ) -> ControlFlow<Self::BreakTy, ()>
       where T: TypeVisitable<I>,
             <I as Interner>::Binder<T>: TypeSuperVisitable<I> { ... }
    fn visit_ty(
        &mut self,
        t: <I as Interner>::Ty
    ) -> ControlFlow<Self::BreakTy, ()>
       where <I as Interner>::Ty: TypeSuperVisitable<I> { ... }
    fn visit_region(
        &mut self,
        _r: <I as Interner>::Region
    ) -> ControlFlow<Self::BreakTy, ()> { ... }
    fn visit_const(
        &mut self,
        c: <I as Interner>::Const
    ) -> ControlFlow<Self::BreakTy, ()>
       where <I as Interner>::Const: TypeSuperVisitable<I> { ... }
    fn visit_predicate(
        &mut self,
        p: <I as Interner>::Predicate
    ) -> ControlFlow<Self::BreakTy, ()>
       where <I as Interner>::Predicate: TypeSuperVisitable<I> { ... }
}

This trait is implemented for every visiting traversal. There is a visit method defined for every type of interest. Each such method has a default that recurses into the type’s fields in a non-custom fashion.

Provided Associated Types

type BreakTy = !

Provided Methods

fn visit_binder<T>( &mut self, t: &<I as Interner>::Binder<T> ) -> ControlFlow<Self::BreakTy, ()>where T: TypeVisitable<I>, <I as Interner>::Binder<T>: TypeSuperVisitable<I>,

fn visit_ty(&mut self, t: <I as Interner>::Ty) -> ControlFlow<Self::BreakTy, ()>where <I as Interner>::Ty: TypeSuperVisitable<I>,

fn visit_region( &mut self, _r: <I as Interner>::Region ) -> ControlFlow<Self::BreakTy, ()>

fn visit_const( &mut self, c: <I as Interner>::Const ) -> ControlFlow<Self::BreakTy, ()>where <I as Interner>::Const: TypeSuperVisitable<I>,

fn visit_predicate( &mut self, p: <I as Interner>::Predicate ) -> ControlFlow<Self::BreakTy, ()>where <I as Interner>::Predicate: TypeSuperVisitable<I>,

Implementors

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for IsSuggestableVisitor<'tcx>

type BreakTy = ()

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for HasEscapingVarsVisitor

type BreakTy = FoundEscapingVars

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for HasTypeFlagsVisitor

type BreakTy = FoundFlags

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for LateBoundRegionsCollector

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for MaxUniverse

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for ValidateBoundVars<'tcx>

type BreakTy = ()

impl TypeVisitor<TyCtxt<'_>> for ContainsRegion

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for GATSubstCollector<'tcx>

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for ParameterCollector

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for ImplTraitInTraitCollector<'tcx>

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for TraitObjectVisitor

impl<'tcx, OP> TypeVisitor<TyCtxt<'tcx>> for ConstrainOpaqueTypeRegionVisitor<'tcx, OP>where OP: FnMut(Region<'tcx>),

impl<'a, 'tcx> TypeVisitor<TyCtxt<'tcx>> for UnresolvedTypeOrConstFinder<'a, 'tcx>

impl<'a, 'tcx> TypeVisitor<TyCtxt<'tcx>> for MarkUsedGenericParams<'a, 'tcx>

impl<'tcx, V> TypeVisitor<TyCtxt<'tcx>> for DefIdVisitorSkeleton<'_, 'tcx, V>where V: DefIdVisitor<'tcx> + ?Sized,

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for Search<'tcx>

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for HasNumericInferVisitor

impl<'tcx, F, E> TypeVisitor<TyCtxt<'tcx>> for OrphanChecker<'tcx, F>where F: FnMut(Ty<'tcx>) -> Result<Ty<'tcx>, E>,

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for MaxEscapingBoundVarVisitor

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for ImplTraitInTraitFinder<'_, 'tcx>

impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for OpaqueTypeCollector<'tcx>