3a457e6ad6
Many of our tests in `tests/lean/run/` produce output from `#eval` (or `#check`) statements, that is then ignored. This PR tries to capture all the useful output using `#guard_msgs`. I've only done a cursory check that the output is still sane --- there is a chance that some "unchecked" tests have already accumulated regressions and this just cements them! In the other direction, I did identify two rotten tests: * a minor one in `setStructInstNotation.lean`, where a comment says `Set Nat`, but `#check` actually prints `?_`. Weird? * `CompilerProbe.lean` is generating empty output, apparently indicating that something is broken, but I don't know the signficance of this file. In any case, I'll ask about these elsewhere. (This started by noticing that a recent `grind` test file had an untested `trace_state`, and then got carried away.)
23 lines
573 B
Text
23 lines
573 B
Text
class Trait (X : Type u) where
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R : Type v
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attribute [reducible] Trait.R
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class SemiInner (X : Type u) (R : outParam <| Type v) where
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semiInner : X → X → R
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@[reducible] instance (X) (R : Type u) [SemiInner X R] : Trait X := ⟨R⟩
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def norm {X} [Trait X] [inst : SemiInner X (Trait.R X)] (x : X) : Trait.R X := SemiInner.semiInner x x
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section Real
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def ℝ := Float
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instance : SemiInner ℝ ℝ := ⟨λ x y : Float => x * y⟩
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attribute [irreducible] ℝ
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variable (x : ℝ)
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/-- info: norm x : Trait.R ℝ -/
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#guard_msgs in
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#check (norm x : ℝ)
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