Type Alias rustc_infer::traits::query::CanonicalTypeOpEqGoal
source · pub type CanonicalTypeOpEqGoal<'tcx> = Canonical<'tcx, ParamEnvAnd<'tcx, Eq<'tcx>>>;
Aliased Type§
struct CanonicalTypeOpEqGoal<'tcx> {
pub value: ParamEnvAnd<'tcx, Eq<'tcx>>,
pub max_universe: UniverseIndex,
pub variables: &'tcx List<CanonicalVarInfo<'tcx>>,
}
Fields§
§value: ParamEnvAnd<'tcx, Eq<'tcx>>
§max_universe: UniverseIndex
§variables: &'tcx List<CanonicalVarInfo<'tcx>>
Trait Implementations§
source§impl<'tcx, V> CanonicalExt<'tcx, V> for Canonical<'tcx, V>
impl<'tcx, V> CanonicalExt<'tcx, V> for Canonical<'tcx, V>
source§fn substitute(
&self,
tcx: TyCtxt<'tcx>,
var_values: &CanonicalVarValues<'tcx>
) -> Vwhere
V: TypeFoldable<TyCtxt<'tcx>>,
fn substitute( &self, tcx: TyCtxt<'tcx>, var_values: &CanonicalVarValues<'tcx> ) -> Vwhere V: TypeFoldable<TyCtxt<'tcx>>,
Instantiate the wrapped value, replacing each canonical value
with the value given in
var_values
.source§fn substitute_projected<T>(
&self,
tcx: TyCtxt<'tcx>,
var_values: &CanonicalVarValues<'tcx>,
projection_fn: impl FnOnce(&V) -> T
) -> Twhere
T: TypeFoldable<TyCtxt<'tcx>>,
fn substitute_projected<T>( &self, tcx: TyCtxt<'tcx>, var_values: &CanonicalVarValues<'tcx>, projection_fn: impl FnOnce(&V) -> T ) -> Twhere T: TypeFoldable<TyCtxt<'tcx>>,
Allows one to apply a substitute to some subset of
self.value
. Invoke projection_fn
with self.value
to get
a value V that is expressed in terms of the same canonical
variables bound in self
(usually this extracts from subset
of self
). Apply the substitution var_values
to this value
V, replacing each of the canonical variables.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: 40 bytes