lean4-htt/tests/elab/partial_fixpoint_monadic.lean
Garmelon 08eb78a5b2
chore: switch to new test/bench suite (#12590)
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.
2026-02-25 13:51:53 +00:00

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/-!
Testing `partial_fixpoint` with monad transformers
-/
/-!
Using an `Option`-based monad
-/
abbrev M1 := ReaderT String (StateT String.Pos.Raw Option)
def parseAll1 (x : M1 α) : M1 (List α) := do
if String.Pos.Raw.atEnd (← read) (← get) then
return []
let val ← x
let list ← parseAll1 x
return val :: list
partial_fixpoint
/--
info: equations:
theorem parseAll1.eq_1 : ∀ {α : Type} (x : M1 α),
parseAll1 x = do
let __do_lift ← read
let __do_lift_1 ← get
have __do_jp : PUnit → M1 (List α) := fun y => do
let val ← x
let list ← parseAll1 x
pure (val :: list)
if String.Pos.Raw.atEnd __do_lift __do_lift_1 = true then pure []
else do
let y ← pure PUnit.unit
__do_jp y
-/
#guard_msgs in #print equations parseAll1
/-!
Using an `IO`-based monad
-/
abbrev M2 := ReaderT String (StateRefT String.Pos.Raw IO)
def parseAll2 (x : M2 α) : M2 (List α) := do
if String.Pos.Raw.atEnd (← read) (← get) then
return []
let val ← x
let list ← parseAll2 x
return val :: list
partial_fixpoint
/--
info: equations:
theorem parseAll2.eq_1 : ∀ {α : Type} (x : M2 α),
parseAll2 x = do
let __do_lift ← read
let __do_lift_1 ← get
have __do_jp : PUnit → M2 (List α) := fun y => do
let val ← x
let list ← parseAll2 x
pure (val :: list)
if String.Pos.Raw.atEnd __do_lift __do_lift_1 = true then pure []
else do
let y ← pure PUnit.unit
__do_jp y
-/
#guard_msgs in #print equations parseAll2