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https://github.com/leanprover/lean4.git
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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.
69 lines
1.5 KiB
Lean4
69 lines
1.5 KiB
Lean4
/-!
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This module tests various mis-uses of termination_by and decreasing_by:
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* use in non-recursive functions
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* that all or none of a recursive group have termination_by.
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* mismatched structural/non-structural
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-/
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def nonRecursive1 (n : Nat) : Nat := n
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termination_by n -- Error
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def nonRecursive2 (n : Nat) : Nat := n
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decreasing_by sorry -- Error
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def nonRecursive3 (n : Nat) : Nat := n
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termination_by n -- Error
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decreasing_by sorry
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partial def partial1 (n : Nat) : Nat := partial1 n
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termination_by n -- Error
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partial def partial2 (n : Nat) : Nat := partial2 n
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decreasing_by sorry -- Error
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partial def partial3 (n : Nat) : Nat := partial3 n
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termination_by n -- Error
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decreasing_by sorry
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unsafe def unsafe1 (n : Nat) : Nat := unsafe1 n
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termination_by n -- Error
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unsafe def unsafe2 (n : Nat) : Nat := unsafe2 n
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decreasing_by sorry -- Error
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unsafe def unsafe3 (n : Nat) : Nat := unsafe3 n
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termination_by x -- Error
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decreasing_by sorry
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unsafe def withWhere (n : Nat) : Nat := foo n
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where foo (n : Nat) := n
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termination_by n -- Error
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unsafe def withLetRec (n : Nat) : Nat :=
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let rec foo (n : Nat) := n
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termination_by n -- Error
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foo n
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mutual
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def rec : Nat → Nat
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| 0 => 0
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| n+1 => rec n + notrec n
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termination_by x => x
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def notrec (n : Nat) : Nat := n
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termination_by n -- Error
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end
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mutual
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def isEven : Nat → Bool
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| 0 => true
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| n+1 => isOdd n
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termination_by x => x -- Error
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def isOdd : Nat → Bool
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| 0 => false
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| n+1 => isEven n
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termination_by? -- still works
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end
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