lean4-htt/tests/elab/471.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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inductive vec : Nat → Type where
| nil : vec 0
| cons : Int → vec n → vec n.succ
def vec_len : vec n → Nat
| vec.nil => 0
| x@(vec.cons h t) => vec_len t + 1
def vec_len' : {n : Nat} → vec n → Nat
| _, vec.nil => 0
| _, x@(vec.cons h t) => vec_len' t + 1
def tst1 : vec (n+1) → Int × vec (n+1) × vec n
| x@(vec.cons h t) => (h, x, t)
def tst2 : vec n → Option (Int × vec n)
| x@(vec.cons h t) => some (h, x)
| _ => none
example (a : Int) (x : vec n) : tst2 (vec.cons a x) = some (a, vec.cons a x) :=
rfl
def vec_len_non_as : vec n → Nat
| vec.nil => 0
| vec.cons h t => vec_len_non_as t + 1
def list_len : List Int → Nat
| List.nil => 0
| x@(List.cons h t) => list_len t + 1