lean4-htt/tests/elab/125.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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class HasElems (α : Type) : Type := (elems : Array α)
def elems (α : Type) [HasElems α] : Array α := HasElems.elems
inductive Foo : Type
| mk1 : Bool → Foo
| mk2 : Bool → Foo
open Foo
instance BoolElems : HasElems Bool := ⟨#[false, true]⟩
instance FooElems : HasElems Foo := ⟨(elems Bool).map mk1 ++ (elems Bool).map mk2⟩
def fooRepr (foo : Foo) :=
match foo with
| mk1 b => f!"OH {b}"
| mk2 b => f!"DR {b}"
instance : Repr Foo := ⟨fun s _ => fooRepr s⟩
/-- info: #[OH false, OH true, DR false, DR true] -/
#guard_msgs in
#eval elems Foo
/-- info: #[OH false, OH true] -/
#guard_msgs in
#eval #[false, true].map Foo.mk1
def Foo.toBool : Foo → Bool
| Foo.mk1 b => b
| Foo.mk2 b => b
/-- info: #[false, true] -/
#guard_msgs in
#eval #[Foo.mk1 false, Foo.mk2 true].map Foo.toBool