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.)
32 lines
714 B
Text
32 lines
714 B
Text
import Init.System.IO
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structure MyState :=
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bs : Nat := 0 -- backtrackable state
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ps : Nat := 0 -- non backtrackable state
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instance : Repr MyState where
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reprPrec s _ := repr (s.bs, s.ps)
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instance : EStateM.Backtrackable Nat MyState :=
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{ save := fun s => s.bs,
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restore := fun s d => { s with bs := d } }
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abbrev M := EStateM String MyState
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def bInc : M Unit := -- increment backtrackble counter
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modify $ fun s => { s with bs := s.bs + 1 }
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def pInc : M Unit := -- increment nonbacktrackable counter
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modify $ fun s => { s with ps := s.ps + 1 }
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def tst : M MyState :=
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do bInc;
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pInc;
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((bInc *> throw "failed") <|> pInc);
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pInc;
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get
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/-- info: some (1, 3) -/
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#guard_msgs in
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#eval tst.run' {}
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