Trait PlaceholderLike

pub trait PlaceholderLike<I>:
    Copy
    + Debug
    + Hash
    + Eq
where
    I: Interner,
{
    type Bound: BoundVarLike<I>;

    // Required methods
    fn universe(self) -> UniverseIndex;
    fn var(self) -> BoundVar;
    fn new(ui: UniverseIndex, bound: Self::Bound) -> Self;
    fn new_anon(ui: UniverseIndex, var: BoundVar) -> Self;
    fn with_updated_universe(self, ui: UniverseIndex) -> Self;
}

Common capabilities of placeholder kinds

Required Associated Types

type Bound: BoundVarLike<I>

Required Methods

fn universe(self) -> UniverseIndex

fn var(self) -> BoundVar

fn new(ui: UniverseIndex, bound: Self::Bound) -> Self

fn new_anon(ui: UniverseIndex, var: BoundVar) -> Self

fn with_updated_universe(self, ui: UniverseIndex) -> Self

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.

Implementors

impl<'tcx> PlaceholderLike<TyCtxt<'tcx>> for PlaceholderConst

type Bound = BoundVar

impl<'tcx> PlaceholderLike<TyCtxt<'tcx>> for PlaceholderRegion

type Bound = BoundRegion

impl<'tcx> PlaceholderLike<TyCtxt<'tcx>> for PlaceholderType

type Bound = BoundTy