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.
42 lines
1 KiB
Text
42 lines
1 KiB
Text
namespace Tutorial
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/- This file contains the code examples that are used in the
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monad control docstring in "How `MonadControl` works" in src/Init/Control/Basic.lean -/
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def σ := Nat
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@[reducible]
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def β := String
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opaque foo : ∀ {α}, IO α → IO α
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opaque bar : StateT σ IO β
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def mapped_foo : StateT σ IO β := do
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let s ← get
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let (b, s') ← liftM <| foo <| StateT.run bar s
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set s'
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return b
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def stM (α : Type) := α × σ
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def restoreM (x : IO (stM α)) : StateT σ IO α := do
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let (a,s) ← liftM x
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set s
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return a
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def mapped_foo' : StateT σ IO β := do
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let s ← get
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let mapInBase := fun z => StateT.run z s
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restoreM <| foo <| mapInBase bar
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def control {α : Type}
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(f : ({β : Type} → StateT σ IO β → IO (stM β)) → IO (stM α))
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: StateT σ IO α := do
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let s ← get
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let mapInBase := fun {β} (z : StateT σ IO β) => StateT.run z s
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let r : IO (stM α) := f mapInBase
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restoreM r
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def mapped_foo'' : StateT σ IO β :=
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control (fun mapInBase => foo (mapInBase bar))
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end Tutorial
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