Struct rustc_trait_selection::traits::query::type_op::AscribeUserType
source · [−]pub struct AscribeUserType<'tcx> {
pub mir_ty: Ty<'tcx>,
pub def_id: DefId,
pub user_substs: UserSubsts<'tcx>,
}Fields
mir_ty: Ty<'tcx>def_id: DefIduser_substs: UserSubsts<'tcx>Trait Implementations
sourceimpl<'tcx> QueryTypeOp<'tcx> for AscribeUserType<'tcx>
impl<'tcx> QueryTypeOp<'tcx> for AscribeUserType<'tcx>
type QueryResponse = ()
sourcefn try_fast_path(
_tcx: TyCtxt<'tcx>,
_key: &ParamEnvAnd<'tcx, Self>
) -> Option<Self::QueryResponse>
fn try_fast_path(
_tcx: TyCtxt<'tcx>,
_key: &ParamEnvAnd<'tcx, Self>
) -> Option<Self::QueryResponse>
Give query the option for a simple fast path that never
actually hits the tcx cache lookup etc. Return Some(r) with
a final result or None to do the full path. Read more
sourcefn perform_query(
tcx: TyCtxt<'tcx>,
canonicalized: Canonicalized<'tcx, ParamEnvAnd<'tcx, Self>>
) -> Fallible<CanonicalizedQueryResponse<'tcx, ()>>
fn perform_query(
tcx: TyCtxt<'tcx>,
canonicalized: Canonicalized<'tcx, ParamEnvAnd<'tcx, Self>>
) -> Fallible<CanonicalizedQueryResponse<'tcx, ()>>
Performs the actual query with the canonicalized key – the
real work happens here. This method is not given an infcx
because it shouldn’t need one – and if it had access to one,
it might do things like invoke sub_regions, which would be
bad, because it would create subregion relationships that are
not captured in the return value. Read more
fn fully_perform_into(
query_key: ParamEnvAnd<'tcx, Self>,
infcx: &InferCtxt<'_, 'tcx>,
output_query_region_constraints: &mut QueryRegionConstraints<'tcx>
) -> Fallible<(Self::QueryResponse, Option<Canonical<'tcx, ParamEnvAnd<'tcx, Self>>>, PredicateObligations<'tcx>, Certainty)>
Auto Trait Implementations
impl<'tcx> !RefUnwindSafe for AscribeUserType<'tcx>
impl<'tcx> Send for AscribeUserType<'tcx>
impl<'tcx> Sync for AscribeUserType<'tcx>
impl<'tcx> Unpin for AscribeUserType<'tcx>
impl<'tcx> !UnwindSafe for AscribeUserType<'tcx>
Blanket Implementations
sourceimpl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T where
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T where
T: Copy,
fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<'tcx, T> IsSuggestable<'tcx> for T where
T: TypeVisitable<'tcx>,
impl<'tcx, T> IsSuggestable<'tcx> for T where
T: TypeVisitable<'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: 40 bytes