Skip to content

fix: namespacing for reduction_sys #437

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
fmontesi merged 1 commit into from
Mar 20, 2026
+3 −2
Merged

fix: namespacing for reduction_sys #437

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 3 additions & 2 deletions Cslib/Foundations/Data/Relation.lean
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -473,17 +473,18 @@ initialize Lean.registerBuiltinAttribute {
name := `reduction_sys
descr := "Register notation for a relation and its closures."
add := fun decl stx _ => MetaM.run' do
let currNamespace ← getCurrNamespace
match stx with
| `(attr | reduction_sys $sym) =>
let mut sym := sym
unless sym.getString.endsWith " " do
sym := Syntax.mkStrLit (sym.getString ++ " ")
liftCommandElabM <| do
modifyScope ({ · with currNamespace := decl.getPrefix })
modifyScope ({ · with currNamespace })
elabCommand (← `(scoped reduction_notation $(mkIdent decl) $sym))
| `(attr | reduction_sys) =>
liftCommandElabM <| do
modifyScope ({ · with currNamespace := decl.getPrefix })
modifyScope ({ · with currNamespace })
elabCommand (← `(scoped reduction_notation $(mkIdent decl)))
| _ => throwError "invalid syntax for 'reduction_sys' attribute"
}
Expand Down
Loading