lean4-htt/tests/elab/boxing_bug.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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@[implicit_reducible]
def myCast : NatCast UInt8 where
natCast := UInt8.ofNat
class Semiring (α : Type u) where
[nsmul : SMul Nat α]
/--
trace: [Compiler.IR] [result]
def instSemiringUInt8._lam_0 (x_1 : @& tobj) (x_2 : u8) : u8 :=
let x_3 : u8 := UInt8.ofNat x_1;
let x_4 : u8 := UInt8.mul x_3 x_2;
ret x_4
def instSemiringUInt8._lam_0._boxed (x_1 : tobj) (x_2 : tagged) : tagged :=
let x_3 : u8 := unbox x_2;
let x_4 : u8 := instSemiringUInt8._lam_0 x_1 x_3;
dec x_1;
let x_5 : tagged := box x_4;
ret x_5
[Compiler.IR] [result]
def instSemiringUInt8._closed_0 : obj :=
let x_1 : obj := pap instSemiringUInt8._lam_0._boxed;
ret x_1
def instSemiringUInt8 : obj :=
let x_1 : obj := instSemiringUInt8._closed_0;
ret x_1
-/
#guard_msgs in
set_option trace.compiler.ir.result true in
attribute [local instance] myCast UInt8.intCast in
instance : Semiring UInt8 where
nsmul := ⟨(· * ·)⟩