diff options
Diffstat (limited to 'compiler/rustc_infer/src/infer/higher_ranked/mod.rs')
| -rw-r--r-- | compiler/rustc_infer/src/infer/higher_ranked/mod.rs | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/compiler/rustc_infer/src/infer/higher_ranked/mod.rs b/compiler/rustc_infer/src/infer/higher_ranked/mod.rs index d0d9efe15..0ce271c0e 100644 --- a/compiler/rustc_infer/src/infer/higher_ranked/mod.rs +++ b/compiler/rustc_infer/src/infer/higher_ranked/mod.rs @@ -69,7 +69,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> { /// For more details visit the relevant sections of the [rustc dev guide]. /// /// [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/traits/hrtb.html - #[instrument(level = "debug", skip(self))] + #[instrument(level = "debug", skip(self), ret)] pub fn replace_bound_vars_with_placeholders<T>(&self, binder: ty::Binder<'tcx, T>) -> T where T: TypeFoldable<'tcx> + Copy, @@ -81,19 +81,19 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> { let next_universe = self.create_next_universe(); let delegate = FnMutDelegate { - regions: |br: ty::BoundRegion| { + regions: &mut |br: ty::BoundRegion| { self.tcx.mk_region(ty::RePlaceholder(ty::PlaceholderRegion { universe: next_universe, name: br.kind, })) }, - types: |bound_ty: ty::BoundTy| { + types: &mut |bound_ty: ty::BoundTy| { self.tcx.mk_ty(ty::Placeholder(ty::PlaceholderType { universe: next_universe, name: bound_ty.var, })) }, - consts: |bound_var: ty::BoundVar, ty| { + consts: &mut |bound_var: ty::BoundVar, ty| { self.tcx.mk_const(ty::ConstS { kind: ty::ConstKind::Placeholder(ty::PlaceholderConst { universe: next_universe, @@ -104,9 +104,8 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> { }, }; - let result = self.tcx.replace_bound_vars_uncached(binder, delegate); - debug!(?next_universe, ?result); - result + debug!(?next_universe); + self.tcx.replace_bound_vars_uncached(binder, delegate) } /// See [RegionConstraintCollector::leak_check][1]. |