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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.
40 lines
1014 B
Lean4
40 lines
1014 B
Lean4
inductive LazyList (α : Type u)
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| nil : LazyList α
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| cons (hd : α) (tl : LazyList α) : LazyList α
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| delayed (t : Thunk (LazyList α)) : LazyList α
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namespace LazyList
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def force : LazyList α → Option (α × LazyList α)
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| delayed as => force as.get
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| nil => none
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| cons a as => some (a,as)
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def length : LazyList α → Nat
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| nil => 0
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| cons _ as => length as + 1
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| delayed as => length as.get
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theorem F_force_some_len_minus_one {L L' : LazyList α}
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: L.force = some (a, L') → L'.length = L.length - 1
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:= sorry
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end LazyList
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structure LazyBatchQueue (τ) :=
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F : LazyList τ
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F_len : Nat
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h_lens : F.length = F_len
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def deq (Q : LazyBatchQueue τ) : Option (τ × LazyBatchQueue τ) :=
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match h:Q.F.force with
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| some (x, F') =>
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some (x,
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⟨F', Q.F_len - 1,
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by simp [LazyList.F_force_some_len_minus_one h, Q.h_lens]⟩)
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| none => none
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theorem deq_correct (Q : LazyBatchQueue τ) : deq Q = none ↔ Q.F.force = none := by
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simp [deq]
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split <;> simp [*]
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