lean4-htt/tests/elab/issue12819.lean
Joachim Breitner b7380758ae
refactor: remove Lean.Environment.replay from core (#12972)
This PR removes the obsolete `Lean.Environment.replay` from
`src/Lean/Replay.lean` and replaces it with the improved version from
`src/LeanChecker/Replay.lean`, which includes fixes for duplicate
theorem handling and Quot/Eq dependency ordering. The primed names
(`Replay'`, `replay'`) are renamed back to `Replay` and `replay`.

A test for the original issue (nested inductives failing with `replay`)
is added as `tests/elab/issue12819.lean`.

Closes #12819

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-18 22:11:42 +00:00

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import Lean
open Lean Lean.Meta
inductive Nested where
| c : List Nested → Nested
run_meta show MetaM Unit from do
let env ← getEnv
let consts := env.constants.map₂.foldl (init := ∅) fun consts n info =>
consts.insert n info
let some importEnv := env.importEnv?
| unreachable!
let _ ← importEnv.replay consts