08eb78a5b2
This PR sets up the new integrated test/bench suite. It then migrates all benchmarks and some related tests to the new suite. There's also some documentation and some linting. For now, a lot of the old tests are left alone so this PR doesn't become even larger than it already is. Eventually, all tests should be migrated to the new suite though so there isn't a confusing mix of two systems.
33 lines
923 B
Text
33 lines
923 B
Text
/-!
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# Rewrite tactic "steals" goals
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-/
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/-!
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https://github.com/leanprover/lean4/issues/10172
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There were two metaprogramming bugs:
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- `rw` didn't filter old vs new metavariables when coming up with new goals.
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- it also didn't make the new metavariables be synthetic opaque, so the old one was
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being assigned, even with old vs new filtering.
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-/
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example (l m : List Nat) (i : Nat) (hi' : i < (l ++ m).length)
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(hh : ∀ hi, l[i]'hi = 5) : (l ++ m)[i] = 5 := by
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rw [List.getElem_append_left]
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· rw [hh] -- used to be Error: unsolved goal `i < l.length`
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· sorry -- used to be Error: No goals to be solved
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/-!
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While we're here, we could address a missing occurs check.
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https://leanprover.zulipchat.com/#narrow/channel/270676-lean4/topic/rewrite.20with.20the.20goal/near/538108360
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-/
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/--
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error: Occurs check failed: Expression
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?k
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contains the goal ?k
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-/
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#guard_msgs in
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example : 1 = 2 := by
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refine ?k
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rw [?k]
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