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Use tracing instrumentation for better bug diagnosing

This commit is contained in:
Oli Scherer 2021-03-05 10:21:38 +00:00
parent 327cc62b0d
commit f261a82a8d
1 changed files with 3 additions and 8 deletions
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11
compiler/rustc_mir/src/borrow_check/region_infer/opaque_types.rs
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@ -47,6 +47,7 @@ impl<'tcx> RegionInferenceContext<'tcx> {
/// Calling `universal_upper_bound` for such a region gives `fr_fn_body`,
/// which has no `external_name` in which case we use `'empty` as the
/// region to pass to `infer_opaque_definition_from_instantiation`.
#[instrument(skip(self, infcx))]
pub(in crate::borrow_check) fn infer_opaque_types(
&self,
infcx: &InferCtxt<'_, 'tcx>,
@ -56,10 +57,7 @@ impl<'tcx> RegionInferenceContext<'tcx> {
opaque_ty_decls
.into_iter()
.map(|(opaque_def_id, ty::ResolvedOpaqueTy { concrete_type, substs })| {
debug!(
"infer_opaque_types(concrete_type = {:?}, substs = {:?})",
concrete_type, substs
);
debug!(?concrete_type, ?substs);
let mut subst_regions = vec![self.universal_regions.fr_static];
let universal_substs =
@ -110,10 +108,7 @@ impl<'tcx> RegionInferenceContext<'tcx> {
}
});
debug!(
"infer_opaque_types(universal_concrete_type = {:?}, universal_substs = {:?})",
universal_concrete_type, universal_substs
);
debug!(?universal_concrete_type, ?universal_substs);
let remapped_type = infcx.infer_opaque_definition_from_instantiation(
opaque_def_id,