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.
51 lines
1.5 KiB
Text
51 lines
1.5 KiB
Text
import Init.Control.Option
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universe u v
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def OptionT2 (m : Type u → Type v) (α : Type u) : Type v :=
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m (Option α)
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namespace OptionT2
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variable {m : Type u → Type v} [Monad m] {α β : Type u}
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@[inline] protected def bind (ma : OptionT2 m α) (f : α → OptionT2 m β) : OptionT2 m β :=
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(do {
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let a? ← ma;
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(match a? with
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| some a => f a
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| none => pure none)
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} : m (Option β))
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@[inline] protected def pure (a : α) : OptionT2 m α :=
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(Pure.pure (some a) : m (Option α))
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@[inline] protected def orelse (ma : OptionT2 m α) (mb : Unit → OptionT2 m α) : OptionT2 m α :=
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(do { let a? ← ma;
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(match a? with
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| some a => pure (some a)
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| _ => mb ()) } : m (Option α))
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@[inline] protected def fail : OptionT2 m α :=
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(pure none : m (Option α))
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end OptionT2
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instance optMonad1 {m} [Monad m] : Monad (OptionT2 m) :=
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{ pure := OptionT2.pure, bind := OptionT2.bind }
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def optMonad2 {m} [Monad m] : Monad (OptionT m) :=
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{ pure := OptionT.pure, bind := OptionT.bind }
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def optAlt1 {m} [Monad m] : Alternative (OptionT m) :=
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{ failure := OptionT.fail,
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orElse := OptionT.orElse,
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toApplicative := Monad.toApplicative }
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def optAlt2 {m} [Monad m] : Alternative (OptionT m) :=
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⟨OptionT.fail, OptionT.orElse⟩ -- it works because it treats `toApplicative` as an instance implicit argument
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def optAlt3 {m} [Monad m] : Alternative (OptionT2 m) :=
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{ failure := OptionT2.fail,
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orElse := OptionT2.orelse,
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toApplicative := Monad.toApplicative }
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