lean4-htt/tests/elab/simproc_erase.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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Text

import Lean.Meta.Tactic.Simp.BuiltinSimprocs
def foo (x : Nat) : Nat :=
x + 10
open Lean Meta
/-- doc-comment for reduceFoo -/
simproc reduceFoo (foo _) := fun e => do
unless e.isAppOfArity ``foo 1 do return .continue
let some n ← Nat.fromExpr? e.appArg! | return .continue
return .done { expr := mkNatLit (n+10) }
example : x + foo 2 = 12 + x := by
simp
rw [Nat.add_comm]
attribute [-simp] reduceFoo
example : x + foo 2 = 12 + x := by
fail_if_success simp
simp [foo]
rw [Nat.add_comm]
attribute [simp] reduceFoo
example : x + foo 2 = 12 + x := by
simp
rw [Nat.add_comm]
example (h : 12 = x) : 10 + 2 = x := by
simp
guard_target =ₛ 12 = x
assumption
attribute [-simp] Nat.reduceAdd
example (h : 12 = x) : 10 + 2 = x := by
fail_if_success simp
simp [Nat.reduceAdd]
guard_target =ₛ 12 = x
assumption
attribute [simp] Nat.reduceAdd
example (h : 12 = x) : 10 + 2 = x := by
simp
guard_target =ₛ 12 = x
assumption