bjoernager/rust
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Add intern table for List<PlaceElem<'tcx>>

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This commit is contained in:
Santiago Pastorino 2019-10-11 16:19:59 -03:00
parent 190802cfca
commit a19aed2226
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GPG key ID: 88C941CDA1D46432
1 changed files with 20 additions and 2 deletions
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22
src/librustc/ty/context.rs
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@ -21,7 +21,7 @@ use crate::middle::cstore::EncodedMetadata;
use crate::middle::lang_items;
use crate::middle::resolve_lifetime::{self, ObjectLifetimeDefault};
use crate::middle::stability;
use crate::mir::{Body, interpret, ProjectionKind, Promoted};
use crate::mir::{Body, interpret, PlaceElem, ProjectionKind, Promoted};
use crate::mir::interpret::{ConstValue, Allocation, Scalar};
use crate::ty::subst::{GenericArg, InternalSubsts, SubstsRef, Subst};
use crate::ty::ReprOptions;
@ -106,6 +106,7 @@ pub struct CtxtInterners<'tcx> {
goal: InternedSet<'tcx, GoalKind<'tcx>>,
goal_list: InternedSet<'tcx, List<Goal<'tcx>>>,
projs: InternedSet<'tcx, List<ProjectionKind>>,
place_elems: InternedSet<'tcx, List<PlaceElem<'tcx>>>,
const_: InternedSet<'tcx, Const<'tcx>>,
}
@ -124,6 +125,7 @@ impl<'tcx> CtxtInterners<'tcx> {
goal: Default::default(),
goal_list: Default::default(),
projs: Default::default(),
place_elems: Default::default(),
const_: Default::default(),
}
}
@ -2145,6 +2147,13 @@ impl<'tcx> Borrow<[ProjectionKind]>
}
}
impl<'tcx> Borrow<[PlaceElem<'tcx>]>
for Interned<'tcx, List<PlaceElem<'tcx>>> {
fn borrow(&self) -> &[PlaceElem<'tcx>] {
&self.0[..]
}
}
impl<'tcx> Borrow<RegionKind> for Interned<'tcx, RegionKind> {
fn borrow(&self) -> &RegionKind {
&self.0
@ -2245,7 +2254,8 @@ slice_interners!(
predicates: _intern_predicates(Predicate<'tcx>),
clauses: _intern_clauses(Clause<'tcx>),
goal_list: _intern_goals(Goal<'tcx>),
projs: _intern_projs(ProjectionKind)
projs: _intern_projs(ProjectionKind),
place_elems: _intern_place_elems(PlaceElem<'tcx>)
);
impl<'tcx> TyCtxt<'tcx> {
@ -2631,6 +2641,14 @@ impl<'tcx> TyCtxt<'tcx> {
}
}
pub fn intern_place_elems(self, ts: &[PlaceElem<'tcx>]) -> &'tcx List<PlaceElem<'tcx>> {
if ts.len() == 0 {
List::empty()
} else {
self._intern_place_elems(ts)
}
}
pub fn intern_canonical_var_infos(self, ts: &[CanonicalVarInfo]) -> CanonicalVarInfos<'tcx> {
if ts.len() == 0 {
List::empty()