diff options
Diffstat (limited to 'compiler/rustc_trait_selection')
4 files changed, 22 insertions, 34 deletions
diff --git a/compiler/rustc_trait_selection/src/traits/codegen.rs b/compiler/rustc_trait_selection/src/traits/codegen.rs index c0700748c79..26f8e7d34c6 100644 --- a/compiler/rustc_trait_selection/src/traits/codegen.rs +++ b/compiler/rustc_trait_selection/src/traits/codegen.rs @@ -18,7 +18,6 @@ use rustc_middle::ty::{self, TyCtxt}; /// obligations *could be* resolved if we wanted to. /// /// This also expects that `trait_ref` is fully normalized. -#[instrument(level = "debug", skip(tcx))] pub fn codegen_fulfill_obligation<'tcx>( tcx: TyCtxt<'tcx>, (param_env, trait_ref): (ty::ParamEnv<'tcx>, ty::PolyTraitRef<'tcx>), @@ -74,7 +73,6 @@ pub fn codegen_fulfill_obligation<'tcx>( // (ouz-a) This is required for `type-alias-impl-trait/assoc-projection-ice.rs` to pass let _ = infcx.inner.borrow_mut().opaque_type_storage.take_opaque_types(); - debug!("Cache miss: {trait_ref:?} => {impl_source:?}"); Ok(&*tcx.arena.alloc(impl_source)) }) } diff --git a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs index cfd9d711894..e84c462ca81 100644 --- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs +++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs @@ -28,7 +28,7 @@ use super::SelectionCandidate::{self, *}; use super::{EvaluatedCandidate, SelectionCandidateSet, SelectionContext, TraitObligationStack}; impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { - #[instrument(level = "debug", skip(self))] + #[instrument(level = "debug", skip(self), ret)] pub(super) fn candidate_from_obligation<'o>( &mut self, stack: &TraitObligationStack<'o, 'tcx>, @@ -48,7 +48,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { if let Some(c) = self.check_candidate_cache(stack.obligation.param_env, cache_fresh_trait_pred) { - debug!(candidate = ?c, "CACHE HIT"); + debug!("CACHE HIT"); return c; } @@ -61,7 +61,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let (candidate, dep_node) = self.in_task(|this| this.candidate_from_obligation_no_cache(stack)); - debug!(?candidate, "CACHE MISS"); + debug!("CACHE MISS"); self.insert_candidate_cache( stack.obligation.param_env, cache_fresh_trait_pred, diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 83838b70fb2..5da8cfab0b1 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -295,7 +295,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { /// Attempts to satisfy the obligation. If successful, this will affect the surrounding /// type environment by performing unification. - #[instrument(level = "debug", skip(self))] + #[instrument(level = "debug", skip(self), ret)] pub fn select( &mut self, obligation: &TraitObligation<'tcx>, @@ -325,10 +325,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { Err(SelectionError::Overflow(OverflowError::Canonical)) } Err(e) => Err(e), - Ok(candidate) => { - debug!(?candidate, "confirmed"); - Ok(Some(candidate)) - } + Ok(candidate) => Ok(Some(candidate)), } } @@ -435,6 +432,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { level = "debug", skip(self, previous_stack), fields(previous_stack = ?previous_stack.head()) + ret, )] fn evaluate_predicate_recursively<'o>( &mut self, @@ -450,7 +448,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { None => self.check_recursion_limit(&obligation, &obligation)?, } - let result = ensure_sufficient_stack(|| { + ensure_sufficient_stack(|| { let bound_predicate = obligation.predicate.kind(); match bound_predicate.skip_binder() { ty::PredicateKind::Trait(t) => { @@ -760,14 +758,10 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { bug!("TypeWellFormedFromEnv is only used for chalk") } } - }); - - debug!("finished: {:?} from {:?}", result, obligation); - - result + }) } - #[instrument(skip(self, previous_stack), level = "debug")] + #[instrument(skip(self, previous_stack), level = "debug", ret)] fn evaluate_trait_predicate_recursively<'o>( &mut self, previous_stack: TraitObligationStackList<'o, 'tcx>, @@ -798,12 +792,12 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // If a trait predicate is in the (local or global) evaluation cache, // then we know it holds without cycles. if let Some(result) = self.check_evaluation_cache(param_env, fresh_trait_pred) { - debug!(?result, "CACHE HIT"); + debug!("CACHE HIT"); return Ok(result); } if let Some(result) = stack.cache().get_provisional(fresh_trait_pred) { - debug!(?result, "PROVISIONAL CACHE HIT"); + debug!("PROVISIONAL CACHE HIT"); stack.update_reached_depth(result.reached_depth); return Ok(result.result); } @@ -826,11 +820,11 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let reached_depth = stack.reached_depth.get(); if reached_depth >= stack.depth { - debug!(?result, "CACHE MISS"); + debug!("CACHE MISS"); self.insert_evaluation_cache(param_env, fresh_trait_pred, dep_node, result); stack.cache().on_completion(stack.dfn); } else { - debug!(?result, "PROVISIONAL"); + debug!("PROVISIONAL"); debug!( "caching provisionally because {:?} \ is a cycle participant (at depth {}, reached depth {})", @@ -1023,7 +1017,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { #[instrument( level = "debug", skip(self, stack), - fields(depth = stack.obligation.recursion_depth) + fields(depth = stack.obligation.recursion_depth), + ret )] fn evaluate_candidate<'o>( &mut self, @@ -1056,7 +1051,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { result = result.max(EvaluatedToOkModuloRegions); } - debug!(?result); Ok(result) } @@ -1405,7 +1399,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { /// a projection, look at the bounds of `T::Bar`, see if we can find a /// `Baz` bound. We return indexes into the list returned by /// `tcx.item_bounds` for any applicable bounds. - #[instrument(level = "debug", skip(self))] + #[instrument(level = "debug", skip(self), ret)] fn match_projection_obligation_against_definition_bounds( &mut self, obligation: &TraitObligation<'tcx>, @@ -1435,7 +1429,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // unnecessary ambiguity. let mut distinct_normalized_bounds = FxHashSet::default(); - let matching_bounds = bounds + bounds .iter() .enumerate() .filter_map(|(idx, bound)| { @@ -1462,10 +1456,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } None }) - .collect(); - - debug!(?matching_bounds); - matching_bounds + .collect() } /// Equates the trait in `obligation` with trait bound. If the two traits @@ -2153,7 +2144,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } } - #[instrument(level = "debug", skip(self))] + #[instrument(level = "debug", skip(self), ret)] fn match_impl( &mut self, impl_def_id: DefId, @@ -2194,17 +2185,16 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { .at(&cause, obligation.param_env) .define_opaque_types(false) .eq(placeholder_obligation_trait_ref, impl_trait_ref) - .map_err(|e| debug!("match_impl: failed eq_trait_refs due to `{}`", e))?; + .map_err(|e| debug!("match_impl: failed eq_trait_refs due to `{e}`"))?; nested_obligations.extend(obligations); if !self.intercrate && self.tcx().impl_polarity(impl_def_id) == ty::ImplPolarity::Reservation { - debug!("match_impl: reservation impls only apply in intercrate mode"); + debug!("reservation impls only apply in intercrate mode"); return Err(()); } - debug!(?impl_substs, ?nested_obligations, "match_impl: success"); Ok(Normalized { value: impl_substs, obligations: nested_obligations }) } diff --git a/compiler/rustc_trait_selection/src/traits/wf.rs b/compiler/rustc_trait_selection/src/traits/wf.rs index 4bd179d2391..bb6009cb22a 100644 --- a/compiler/rustc_trait_selection/src/traits/wf.rs +++ b/compiler/rustc_trait_selection/src/traits/wf.rs @@ -841,7 +841,7 @@ pub fn object_region_bounds<'tcx>( /// /// Requires that trait definitions have been processed so that we can /// elaborate predicates and walk supertraits. -#[instrument(skip(tcx, predicates), level = "debug")] +#[instrument(skip(tcx, predicates), level = "debug", ret)] pub(crate) fn required_region_bounds<'tcx>( tcx: TyCtxt<'tcx>, erased_self_ty: Ty<'tcx>, |