From d72e5c154faeea1d55387bc8c039d97f63ebd1c4 Mon Sep 17 00:00:00 2001
From: Pierre-Marie Pédrot
Date: Sun, 3 Mar 2019 21:03:37 +0100
Subject: Change the representation of kernel case.

We store bound variable names instead of functions for both branches and
predicate, and we furthermore add the parameters in the node. Let bindings
are not taken into account and require an environment lookup for retrieval.
---
 vernac/comDefinition.ml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'vernac/comDefinition.ml')

diff --git a/vernac/comDefinition.ml b/vernac/comDefinition.ml
index c54adb45f9..b3ffb864f2 100644
--- a/vernac/comDefinition.ml
+++ b/vernac/comDefinition.ml
@@ -69,9 +69,10 @@ let protect_pattern_in_binder bl c ctypopt =
         | LetIn (x,b,t,c) ->
           let evd,c = aux (push_rel (LocalDef (x,b,t)) env) evd c in
           evd, mkLetIn (x,t,b,c)
-        | Case (ci,p,iv,a,bl) ->
+        | Case (ci,u,pms,p,iv,a,bl) ->
+          let (ci, p, iv, a, bl) = EConstr.expand_case env evd (ci, u, pms, p, iv, a, bl) in
           let evd,bl = Array.fold_left_map (aux env) evd bl in
-          evd, mkCase (ci,p,iv,a,bl)
+          evd, mkCase (EConstr.contract_case env evd (ci, p, iv, a, bl))
         | Cast (c,_,_)    -> f env evd c  (* we remove the cast we had set *)
         (* This last case may happen when reaching the proof of an
            impossible case, as when pattern-matching on a vector of length 1 *)
-- 
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