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Make TypeChecker::known_type_outlives_obligations owned.

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This avoids the need to arena allocate it. `ConstraintConversion` needs
some simple lifetime adjustments to allow this.
This commit is contained in:
Nicholas Nethercote 2024-10-29 12:36:56 +11:00
parent 4c8a23ab0d
commit 227ecc803f
3 changed files with 7 additions and 9 deletions
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4
compiler/rustc_borrowck/src/type_check/constraint_conversion.rs
View File

@ -37,7 +37,7 @@ pub(crate) struct ConstraintConversion<'a, 'tcx> {
region_bound_pairs: &'a RegionBoundPairs<'tcx>,
implicit_region_bound: ty::Region<'tcx>,
param_env: ty::ParamEnv<'tcx>,
known_type_outlives_obligations: &'tcx [ty::PolyTypeOutlivesPredicate<'tcx>],
known_type_outlives_obligations: &'a [ty::PolyTypeOutlivesPredicate<'tcx>],
locations: Locations,
span: Span,
category: ConstraintCategory<'tcx>,
@ -52,7 +52,7 @@ impl<'a, 'tcx> ConstraintConversion<'a, 'tcx> {
region_bound_pairs: &'a RegionBoundPairs<'tcx>,
implicit_region_bound: ty::Region<'tcx>,
param_env: ty::ParamEnv<'tcx>,
known_type_outlives_obligations: &'tcx [ty::PolyTypeOutlivesPredicate<'tcx>],
known_type_outlives_obligations: &'a [ty::PolyTypeOutlivesPredicate<'tcx>],
locations: Locations,
span: Span,
category: ConstraintCategory<'tcx>,

6
compiler/rustc_borrowck/src/type_check/free_region_relations.rs
View File

@ -46,7 +46,7 @@ type NormalizedInputsAndOutput<'tcx> = Vec<Ty<'tcx>>;
pub(crate) struct CreateResult<'tcx> {
pub(crate) universal_region_relations: Frozen<UniversalRegionRelations<'tcx>>,
pub(crate) region_bound_pairs: RegionBoundPairs<'tcx>,
pub(crate) known_type_outlives_obligations: &'tcx [ty::PolyTypeOutlivesPredicate<'tcx>],
pub(crate) known_type_outlives_obligations: Vec<ty::PolyTypeOutlivesPredicate<'tcx>>,
pub(crate) normalized_inputs_and_output: NormalizedInputsAndOutput<'tcx>,
}
@ -250,8 +250,6 @@ impl<'tcx> UniversalRegionRelationsBuilder<'_, 'tcx> {
known_type_outlives_obligations.push(outlives);
}
let known_type_outlives_obligations =
self.infcx.tcx.arena.alloc_slice(&known_type_outlives_obligations);
let unnormalized_input_output_tys = self
.universal_regions
@ -340,7 +338,7 @@ impl<'tcx> UniversalRegionRelationsBuilder<'_, 'tcx> {
&self.region_bound_pairs,
self.implicit_region_bound,
param_env,
known_type_outlives_obligations,
&known_type_outlives_obligations,
Locations::All(span),
span,
ConstraintCategory::Internal,

6
compiler/rustc_borrowck/src/type_check/mod.rs
View File

@ -844,7 +844,7 @@ struct TypeChecker<'a, 'tcx> {
/// all of the promoted items.
user_type_annotations: &'a CanonicalUserTypeAnnotations<'tcx>,
region_bound_pairs: &'a RegionBoundPairs<'tcx>,
known_type_outlives_obligations: &'tcx [ty::PolyTypeOutlivesPredicate<'tcx>],
known_type_outlives_obligations: Vec<ty::PolyTypeOutlivesPredicate<'tcx>>,
implicit_region_bound: ty::Region<'tcx>,
reported_errors: FxIndexSet<(Ty<'tcx>, Span)>,
universal_regions: &'a UniversalRegions<'tcx>,
@ -1028,7 +1028,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
self.region_bound_pairs,
self.implicit_region_bound,
self.param_env,
self.known_type_outlives_obligations,
&self.known_type_outlives_obligations,
locations,
locations.span(self.body),
category,
@ -2790,7 +2790,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
self.region_bound_pairs,
self.implicit_region_bound,
self.param_env,
self.known_type_outlives_obligations,
&self.known_type_outlives_obligations,
locations,
self.body.span, // irrelevant; will be overridden.
ConstraintCategory::Boring, // same as above.