Struct rustc_middle::ty::util::OpaqueTypeExpander
source · [−]struct OpaqueTypeExpander<'tcx> {
seen_opaque_tys: FxHashSet<DefId>,
expanded_cache: FxHashMap<(DefId, SubstsRef<'tcx>), Ty<'tcx>>,
primary_def_id: Option<DefId>,
found_recursion: bool,
found_any_recursion: bool,
check_recursion: bool,
tcx: TyCtxt<'tcx>,
}Fields
seen_opaque_tys: FxHashSet<DefId>expanded_cache: FxHashMap<(DefId, SubstsRef<'tcx>), Ty<'tcx>>primary_def_id: Option<DefId>found_recursion: boolfound_any_recursion: boolcheck_recursion: boolWhether or not to check for recursive opaque types.
This is true when we’re explicitly checking for opaque type
recursion, and ‘false’ otherwise to avoid unnecessary work.
tcx: TyCtxt<'tcx>Implementations
sourceimpl<'tcx> OpaqueTypeExpander<'tcx>
impl<'tcx> OpaqueTypeExpander<'tcx>
Trait Implementations
sourceimpl<'tcx> TypeFolder<'tcx> for OpaqueTypeExpander<'tcx>
impl<'tcx> TypeFolder<'tcx> for OpaqueTypeExpander<'tcx>
fn tcx(&self) -> TyCtxt<'tcx>
fn fold_ty(&mut self, t: Ty<'tcx>) -> Ty<'tcx>
type Error = !
fn fold_binder<T>(&mut self, t: Binder<'tcx, T>) -> Binder<'tcx, T> where
T: TypeFoldable<'tcx>,
Self: TypeFolder<'tcx, Error = !>,
fn fold_region(&mut self, r: Region<'tcx>) -> Region<'tcx> where
Self: TypeFolder<'tcx, Error = !>,
fn fold_const(&mut self, c: &'tcx Const<'tcx>) -> &'tcx Const<'tcx> where
Self: TypeFolder<'tcx, Error = !>,
fn fold_predicate(&mut self, p: Predicate<'tcx>) -> Predicate<'tcx> where
Self: TypeFolder<'tcx, Error = !>,
fn fold_mir_const(&mut self, c: ConstantKind<'tcx>) -> ConstantKind<'tcx> where
Self: TypeFolder<'tcx, Error = !>,
Auto Trait Implementations
impl<'tcx> !RefUnwindSafe for OpaqueTypeExpander<'tcx>
impl<'tcx> !Send for OpaqueTypeExpander<'tcx>
impl<'tcx> !Sync for OpaqueTypeExpander<'tcx>
impl<'tcx> Unpin for OpaqueTypeExpander<'tcx>
impl<'tcx> !UnwindSafe for OpaqueTypeExpander<'tcx>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<'tcx, F> FallibleTypeFolder<'tcx> for F where
F: TypeFolder<'tcx, Error = !>,
impl<'tcx, F> FallibleTypeFolder<'tcx> for F where
F: TypeFolder<'tcx, Error = !>,
fn try_fold_binder<T>(
&mut self,
t: Binder<'tcx, T>
) -> Result<Binder<'tcx, T>, Self::Error> where
T: TypeFoldable<'tcx>,
fn try_fold_ty(&mut self, t: Ty<'tcx>) -> Result<Ty<'tcx>, Self::Error>
fn try_fold_region(
&mut self,
r: Region<'tcx>
) -> Result<Region<'tcx>, Self::Error>
fn try_fold_const(
&mut self,
c: &'tcx Const<'tcx>
) -> Result<&'tcx Const<'tcx>, Self::Error>
fn try_fold_predicate(
&mut self,
p: Predicate<'tcx>
) -> Result<Predicate<'tcx>, Self::Error>
fn try_fold_mir_const(
&mut self,
c: ConstantKind<'tcx>
) -> Result<ConstantKind<'tcx>, Self::Error>
sourceimpl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
impl<'a, T> Captures<'a> for T where
T: ?Sized,
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: 88 bytes