diff options
Diffstat (limited to 'compiler/rustc_middle/src/traits/solve')
| -rw-r--r-- | compiler/rustc_middle/src/traits/solve/cache.rs | 2 | ||||
| -rw-r--r-- | compiler/rustc_middle/src/traits/solve/inspect.rs | 11 | ||||
| -rw-r--r-- | compiler/rustc_middle/src/traits/solve/inspect/format.rs | 13 |
3 files changed, 21 insertions, 5 deletions
diff --git a/compiler/rustc_middle/src/traits/solve/cache.rs b/compiler/rustc_middle/src/traits/solve/cache.rs index e9e9cc418..4f90af0a2 100644 --- a/compiler/rustc_middle/src/traits/solve/cache.rs +++ b/compiler/rustc_middle/src/traits/solve/cache.rs @@ -5,7 +5,7 @@ use rustc_data_structures::sync::Lock; use rustc_query_system::cache::WithDepNode; use rustc_query_system::dep_graph::DepNodeIndex; use rustc_session::Limit; -/// The trait solver cache used by `-Ztrait-solver=next`. +/// The trait solver cache used by `-Znext-solver`. /// /// FIXME(@lcnr): link to some official documentation of how /// this works. diff --git a/compiler/rustc_middle/src/traits/solve/inspect.rs b/compiler/rustc_middle/src/traits/solve/inspect.rs index a5916c4ab..77d112d0a 100644 --- a/compiler/rustc_middle/src/traits/solve/inspect.rs +++ b/compiler/rustc_middle/src/traits/solve/inspect.rs @@ -19,8 +19,8 @@ //! [canonicalized]: https://rustc-dev-guide.rust-lang.org/solve/canonicalization.html use super::{ - CandidateSource, Canonical, CanonicalInput, Certainty, Goal, IsNormalizesToHack, NoSolution, - QueryInput, QueryResult, + CandidateSource, Canonical, CanonicalInput, Certainty, Goal, GoalSource, IsNormalizesToHack, + NoSolution, QueryInput, QueryResult, }; use crate::{infer::canonical::CanonicalVarValues, ty}; use format::ProofTreeFormatter; @@ -115,13 +115,15 @@ impl Debug for Probe<'_> { pub enum ProbeStep<'tcx> { /// We added a goal to the `EvalCtxt` which will get proven /// the next time `EvalCtxt::try_evaluate_added_goals` is called. - AddGoal(CanonicalState<'tcx, Goal<'tcx, ty::Predicate<'tcx>>>), + AddGoal(GoalSource, CanonicalState<'tcx, Goal<'tcx, ty::Predicate<'tcx>>>), /// The inside of a `EvalCtxt::try_evaluate_added_goals` call. EvaluateGoals(AddedGoalsEvaluation<'tcx>), /// A call to `probe` while proving the current goal. This is /// used whenever there are multiple candidates to prove the /// current goalby . NestedProbe(Probe<'tcx>), + CommitIfOkStart, + CommitIfOkSuccess, } /// What kind of probe we're in. In case the probe represents a candidate, or @@ -142,6 +144,9 @@ pub enum ProbeKind<'tcx> { /// Used in the probe that wraps normalizing the non-self type for the unsize /// trait, which is also structurally matched on. UnsizeAssembly, + /// A call to `EvalCtxt::commit_if_ok` which failed, causing the work + /// to be discarded. + CommitIfOk, /// During upcasting from some source object to target object type, used to /// do a probe to find out what projection type(s) may be used to prove that /// the source type upholds all of the target type's object bounds. diff --git a/compiler/rustc_middle/src/traits/solve/inspect/format.rs b/compiler/rustc_middle/src/traits/solve/inspect/format.rs index 4b73d8e41..4e2207ed5 100644 --- a/compiler/rustc_middle/src/traits/solve/inspect/format.rs +++ b/compiler/rustc_middle/src/traits/solve/inspect/format.rs @@ -109,6 +109,9 @@ impl<'a, 'b> ProofTreeFormatter<'a, 'b> { ProbeKind::UpcastProjectionCompatibility => { writeln!(self.f, "PROBING FOR PROJECTION COMPATIBILITY FOR UPCASTING:") } + ProbeKind::CommitIfOk => { + writeln!(self.f, "COMMIT_IF_OK:") + } ProbeKind::MiscCandidate { name, result } => { writeln!(self.f, "CANDIDATE {name}: {result:?}") } @@ -120,9 +123,17 @@ impl<'a, 'b> ProofTreeFormatter<'a, 'b> { self.nested(|this| { for step in &probe.steps { match step { - ProbeStep::AddGoal(goal) => writeln!(this.f, "ADDED GOAL: {goal:?}")?, + ProbeStep::AddGoal(source, goal) => { + let source = match source { + GoalSource::Misc => "misc", + GoalSource::ImplWhereBound => "impl where-bound", + }; + writeln!(this.f, "ADDED GOAL ({source}): {goal:?}")? + } ProbeStep::EvaluateGoals(eval) => this.format_added_goals_evaluation(eval)?, ProbeStep::NestedProbe(probe) => this.format_probe(probe)?, + ProbeStep::CommitIfOkStart => writeln!(this.f, "COMMIT_IF_OK START")?, + ProbeStep::CommitIfOkSuccess => writeln!(this.f, "COMMIT_IF_OK SUCCESS")?, } } Ok(()) |