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compiler/rustc_middle/src/traits/solve/inspect/format.rs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| use super::*; | ||
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| pub(super) struct ProofTreeFormatter<'a, 'b> { | ||
| pub(super) f: &'a mut (dyn Write + 'b), | ||
| pub(super) on_newline: bool, | ||
| } | ||
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| impl Write for ProofTreeFormatter<'_, '_> { | ||
| fn write_str(&mut self, s: &str) -> std::fmt::Result { | ||
| for line in s.split_inclusive("\n") { | ||
| if self.on_newline { | ||
| self.f.write_str(" ")?; | ||
| } | ||
| self.on_newline = line.ends_with("\n"); | ||
| self.f.write_str(line)?; | ||
| } | ||
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| Ok(()) | ||
| } | ||
| } | ||
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| impl ProofTreeFormatter<'_, '_> { | ||
| fn nested(&mut self) -> ProofTreeFormatter<'_, '_> { | ||
| ProofTreeFormatter { f: self, on_newline: true } | ||
| } | ||
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| pub(super) fn format_goal_evaluation(&mut self, goal: &GoalEvaluation<'_>) -> std::fmt::Result { | ||
| let f = &mut *self.f; | ||
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| let goal_text = match goal.is_normalizes_to_hack { | ||
| IsNormalizesToHack::Yes => "NORMALIZES-TO HACK GOAL", | ||
| IsNormalizesToHack::No => "GOAL", | ||
| }; | ||
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| writeln!(f, "{}: {:?}", goal_text, goal.uncanonicalized_goal,)?; | ||
| writeln!(f, "CANONICALIZED: {:?}", goal.canonicalized_goal)?; | ||
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| match &goal.kind { | ||
| GoalEvaluationKind::CacheHit(CacheHit::Global) => { | ||
| writeln!(f, "GLOBAL CACHE HIT: {:?}", goal.result) | ||
| } | ||
| GoalEvaluationKind::CacheHit(CacheHit::Provisional) => { | ||
| writeln!(f, "PROVISIONAL CACHE HIT: {:?}", goal.result) | ||
| } | ||
| GoalEvaluationKind::Uncached { revisions } => { | ||
| for (n, step) in revisions.iter().enumerate() { | ||
| let f = &mut *self.f; | ||
| writeln!(f, "REVISION {n}: {:?}", step.result)?; | ||
| let mut f = self.nested(); | ||
| f.format_evaluation_step(step)?; | ||
| } | ||
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| let f = &mut *self.f; | ||
| writeln!(f, "RESULT: {:?}", goal.result) | ||
| } | ||
| }?; | ||
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| if goal.returned_goals.len() > 0 { | ||
| let f = &mut *self.f; | ||
| writeln!(f, "NESTED GOALS ADDED TO CALLER: [")?; | ||
| let mut f = self.nested(); | ||
| for goal in goal.returned_goals.iter() { | ||
| writeln!(f, "ADDED GOAL: {:?},", goal)?; | ||
| } | ||
| writeln!(self.f, "]")?; | ||
| } | ||
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| Ok(()) | ||
| } | ||
|
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| pub(super) fn format_evaluation_step( | ||
| &mut self, | ||
| evaluation_step: &GoalEvaluationStep<'_>, | ||
| ) -> std::fmt::Result { | ||
| let f = &mut *self.f; | ||
| writeln!(f, "INSTANTIATED: {:?}", evaluation_step.instantiated_goal)?; | ||
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| for candidate in &evaluation_step.candidates { | ||
| let mut f = self.nested(); | ||
| f.format_candidate(candidate)?; | ||
| } | ||
| for nested_goal_evaluation in &evaluation_step.nested_goal_evaluations { | ||
| let mut f = self.nested(); | ||
| f.format_nested_goal_evaluation(nested_goal_evaluation)?; | ||
| } | ||
|
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| Ok(()) | ||
| } | ||
|
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| pub(super) fn format_candidate(&mut self, candidate: &GoalCandidate<'_>) -> std::fmt::Result { | ||
| let f = &mut *self.f; | ||
|
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| match &candidate.kind { | ||
| CandidateKind::NormalizedSelfTyAssembly => { | ||
| writeln!(f, "NORMALIZING SELF TY FOR ASSEMBLY:") | ||
| } | ||
| CandidateKind::Candidate { name, result } => { | ||
| writeln!(f, "CANDIDATE {}: {:?}", name, result) | ||
| } | ||
| }?; | ||
|
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| let mut f = self.nested(); | ||
| for candidate in &candidate.candidates { | ||
| f.format_candidate(candidate)?; | ||
| } | ||
| for nested_evaluations in &candidate.nested_goal_evaluations { | ||
| f.format_nested_goal_evaluation(nested_evaluations)?; | ||
| } | ||
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| Ok(()) | ||
| } | ||
|
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| pub(super) fn format_nested_goal_evaluation( | ||
| &mut self, | ||
| nested_goal_evaluation: &AddedGoalsEvaluation<'_>, | ||
| ) -> std::fmt::Result { | ||
| let f = &mut *self.f; | ||
| writeln!(f, "TRY_EVALUATE_ADDED_GOALS: {:?}", nested_goal_evaluation.result)?; | ||
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| for (n, revision) in nested_goal_evaluation.evaluations.iter().enumerate() { | ||
| let f = &mut *self.f; | ||
| writeln!(f, "REVISION {n}")?; | ||
| let mut f = self.nested(); | ||
| for goal_evaluation in revision { | ||
| f.format_goal_evaluation(goal_evaluation)?; | ||
| } | ||
| } | ||
|
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| Ok(()) | ||
| } | ||
| } |