Skip to content

Fix tuto ltac2 match to use fresh #130

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
thomas-lamiaux merged 1 commit into from
Apr 29, 2026
Merged

Fix tuto ltac2 match to use fresh #130

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
12 changes: 7 additions & 5 deletions src/metaprogramming/ltac2/tutorial_matching_terms_and_goals.v
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -277,8 +277,9 @@ Ltac2 simplify_let0 (h : ident) : unit :=
lazy_match! type_h with
| let var := ?expr in @?body var =>
printf "the body is :%t" body;
set (x' := $expr) in *;
let x := Control.hyp @x' in
let x := Fresh.in_goal @x in
set ($x := $expr) in *;
let x := Control.hyp x in
change ($body $x) in h;
lazy head beta in h
| _ => Control.zero (Tactic_failure (Some (fprintf "the type %t of %I is not a letin" type_h h)))
Expand Down Expand Up @@ -347,9 +348,10 @@ Ltac2 simplify_let_bis0 (h : ident) : unit :=
let type_h := type (Control.hyp h) in
match Unsafe.kind type_h with
| LetIn _ expr body =>
set (x' := $expr) in *;
let x' := Control.hyp @x' in
let new_body := substnl [x'] 0 body in
let x := Fresh.in_goal @x in
set ($x := $expr) in *;
let x := Control.hyp x in
let new_body := substnl [x] 0 body in
change ($new_body) in h
| _ => Control.zero (Tactic_failure (Some (fprintf "the type %t of %I is not a letin" type_h h)))

Expand Down
Loading