Type Alias rustc_middle::thir::UserTy

type UserTy<'tcx> = Option<Box<CanonicalUserType<'tcx>>>;

Aliased Type

enum UserTy<'tcx> {
    None,
    Some(Box<Canonical<'tcx, UserType<'tcx>>, Global>),
}

Variants

None

No value.

Some(Box<Canonical<'tcx, UserType<'tcx>>, Global>)

Some value of type T.

Trait Implementations

impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for Option<T>

type Lifted = Option<<T as Lift<'tcx>>::Lifted>

fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted>

impl<T: ParameterizedOverTcx> ParameterizedOverTcx for Option<T>

type Value<'tcx> = Option<<T as ParameterizedOverTcx>::Value<'tcx>>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes

Size for each variant:

• None: 0 bytes
• Some: 8 bytes