Record projections are now defined as fixpoints in order to block

[helm.git] / helm / software / components / ng_tactics / nCicElim.ml

diff --git a/helm/software/components/ng_tactics/nCicElim.ml b/helm/software/components/ng_tactics/nCicElim.ml
index 684874ce62bbdc87e22d0c4213aaa4dd583290d2..79a22b07720fa9d5a3e7b2503324653a249becd7 100644 (file)
--- a/helm/software/components/ng_tactics/nCicElim.ml
+++ b/helm/software/components/ng_tactics/nCicElim.ml
@@ -98,7 +98,7 @@ let mk_elim uri leftno [it] (outsort,suffix) =
                       params @
                       [p_name] @
                       k_names @
-                      List.map (fun _ -> CicNotationPt.Implicit)
+                      List.map (fun _ -> CicNotationPt.Implicit `JustOne)
                        (List.tl args) @
                       [mk_appl (name::abs)])))
               | _ -> mk_id name,None
@@ -148,7 +148,8 @@ let mk_elim uri leftno [it] (outsort,suffix) =
      (function x::_ -> x | _ -> assert false) 80 
      (CicNotationPres.mpres_of_box boxml)));
 *)
-  CicNotationPt.Theorem (`Definition,srec_name,CicNotationPt.Implicit,Some res)
+  CicNotationPt.Theorem
+   (`Definition,srec_name,CicNotationPt.Implicit `JustOne,Some res)
 ;;
 
 let ast_of_sort s =
@@ -194,6 +195,8 @@ let rec nth_prod projs n ty =
   | _ -> assert false
 ;;
 
+(* this code should be unified with NTermCicContent.nast_of_cic0,
+   but the two contexts have different types *)
 let rec pp rels =
  function
     NCic.Rel i -> List.nth rels (i - 1)
@@ -201,11 +204,45 @@ let rec pp rels =
      CicNotationPt.Ident
       (NCicPp.ppterm ~metasenv:[] ~subst:[] ~context:[] t,None)
   | NCic.Sort s -> CicNotationPt.Sort (fst (ast_of_sort s))
+  | NCic.Meta _
+  | NCic.Implicit _ -> assert false
   | NCic.Appl l -> CicNotationPt.Appl (List.map (pp rels) l)
   | NCic.Prod (n,s,t) ->
      let n = mk_id n in
       CicNotationPt.Binder (`Pi, (n,Some (pp rels s)), pp (n::rels) t)
-  | _ -> assert false (* not implemented yet *)
+  | NCic.Lambda (n,s,t) ->
+     let n = mk_id n in
+      CicNotationPt.Binder (`Lambda, (n,Some (pp rels s)), pp (n::rels) t)
+  | NCic.LetIn (n,s,ty,t) ->
+     let n = mk_id n in
+      CicNotationPt.LetIn ((n, Some (pp rels ty)), pp rels s, pp (n::rels) t)
+  | NCic.Match (NReference.Ref (uri,_) as r,outty,te,patterns) ->
+    let name = NUri.name_of_uri uri in
+    let case_indty = Some (name, None) in
+    let constructors, leftno =
+     let _,leftno,tys,_,n = NCicEnvironment.get_checked_indtys r in
+     let _,_,_,cl  = List.nth tys n in
+      cl,leftno
+    in
+    let rec eat_branch n rels ty pat =
+      match (ty, pat) with
+      | NCic.Prod (name, s, t), _ when n > 0 ->
+         eat_branch (pred n) rels t pat
+      | NCic.Prod (_, _, t), NCic.Lambda (name, s, t') ->
+          let cv, rhs = eat_branch 0 ((mk_id name)::rels) t t' in
+           (mk_id name, Some (pp rels s)) :: cv, rhs
+      | _, _ -> [], pp rels pat
+    in
+    let patterns =
+      try
+        List.map2
+          (fun (_, name, ty) pat ->
+            let capture_variables,rhs = eat_branch leftno rels ty pat in
+             CicNotationPt.Pattern (name, None, capture_variables), rhs
+          ) constructors patterns
+      with Invalid_argument _ -> assert false
+    in
+     CicNotationPt.Case (pp rels te, case_indty, Some (pp rels outty), patterns)
 ;;
 
 let mk_projection leftno tyname consname consty (projname,_,_) i =
@@ -222,31 +259,32 @@ let mk_projection leftno tyname consname consty (projname,_,_) i =
        HExtlib.mk_list underscore (argsno - i -1) in
      let branch = CicNotationPt.Pattern (consname,None,bvars), bvar in
      let projs,outtype = nth_prod [] i ty in
-prerr_endline ("outtype[" ^ string_of_int i ^ "]: " ^ NCicPp.ppterm ~metasenv:[] ~subst:[] ~context:[] ty);
-prerr_endline ("XXX[" ^ string_of_int i ^ "]: " ^ NCicPp.ppterm ~metasenv:[] ~subst:[] ~context:[] outtype);
      let rels =
       List.map
        (fun name -> mk_appl (mk_id name :: List.rev names @ [arg])) projs
       @ names in
      let outtype = pp rels outtype in
      let outtype= CicNotationPt.Binder (`Lambda, (arg, Some arg_ty), outtype) in
-      CicNotationPt.Binder
-       (`Lambda, (arg,Some arg_ty),
-         CicNotationPt.Case (arg,None,Some outtype,[branch]))
+      [arg, Some arg_ty], CicNotationPt.Case (arg,None,Some outtype,[branch])
    | _,NCic.Prod (name,_,t) ->
       let name = mk_id name in
-       CicNotationPt.Binder
-        (`Lambda, (name,None), aux (name::names) t (leftno - 1))
+      let params,body = aux (name::names) t (leftno - 1) in
+       (name,None)::params, body
    | _,_ -> assert false
  in
- let res = aux [] consty leftno in
+ let params,bo = aux [] consty leftno in
+ let pprojname = mk_id projname in
+ let res =
+  CicNotationPt.LetRec (`Inductive,
+   [params, (pprojname,None), bo, leftno], pprojname) in
 (* prerr_endline
    (BoxPp.render_to_string
      ~map_unicode_to_tex:false
      (function x::_ -> x | _ -> assert false)
      80 (CicNotationPres.render (fun _ -> None)
      (TermContentPres.pp_ast res)));*)
-  CicNotationPt.Theorem (`Definition,projname,CicNotationPt.Implicit,Some res)
+  CicNotationPt.Theorem
+   (`Definition,projname,CicNotationPt.Implicit `JustOne,Some res)
 ;;
 
 let mk_projections (_,_,_,_,obj) =