lean4-htt/tests/pkg/module
Sebastian Ullrich db6aa9d8d3
feat: move instance-class check to declaration site (#12325)
This PR adds a warning to any `def` of class type that does not also
declare an appropriate reducibility.

The warning check runs after elaboration (checking the actual
reducibility status via `getReducibilityStatus`) rather than
syntactically checking modifiers before elaboration. This is necessary
to accommodate patterns like `@[to_additive (attr :=
implicit_reducible)]` in Mathlib, where the reducibility attribute is
applied during `.afterCompilation` by another attribute, and would be
missed by a purely syntactic check.

---------

Co-authored-by: Paul Reichert <6992158+datokrat@users.noreply.github.com>
Co-authored-by: Kim Morrison <kim@tqft.net>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-06 03:23:27 +00:00
..
Module feat: move instance-class check to declaration site (#12325) 2026-03-06 03:23:27 +00:00
lakefile.toml feat: module system is no longer experimental (#11637) 2025-12-12 21:20:26 +00:00
lean-toolchain chore: relative lean-toolchains (#12652) 2026-02-25 10:23:35 +00:00
Module.lean fix: privacy checks and import all (#10550) 2025-09-26 13:26:10 +00:00
test.sh fix: import-merging theorems under the module system (#10556) 2025-09-26 13:02:51 +00:00