Update

src/compiler/rewrite/aform.ml

@@ -21,6 +21,9 @@ open Ident
 open Zelus
 open Deftypes
 
+let unbound x =
+  Misc.internal_error "A-normal form" Ident.fprint_t x
+
 type 'a tree = | Leaf of 'a | Lpar of 'a tree list
 
 (* the type of the accumulator *)
@@ -40,7 +43,7 @@ let rec matching eq_list ({ pat_desc } as p) ({ e_desc } as e) =
     | _ -> (Aux.eq_make p e) :: eq_list 
 
 let find { renaming; subst } id =
-  try Env.find id renaming with | Not_found -> assert false
+  try Env.find id renaming with | Not_found -> unbound id
 
 let rec make_pat t =
   match t with
@@ -94,7 +97,7 @@ let pattern funs ({ renaming; subst } as acc) ({ pat_desc } as p) =
        | Not_found ->
           try
             make_pat (Env.find x subst)
-          with | Not_found -> assert false in
+          with | Not_found -> unbound x in
      p, acc
   | _ -> raise Mapfold.Fallback
 
@@ -107,12 +110,12 @@ let expression funs ({ renaming; subst } as acc) ({ e_desc } as e) =
        | Not_found ->
           try
             make_exp (Env.find x subst)
-          with | Not_found -> assert false in
+          with | Not_found -> unbound x in
      e, acc
   | _ -> raise Mapfold.Fallback
 
 let equation funs acc eq =
-  let ({ eq_desc } as eq), acc = Mapfold.equation_it funs acc eq in
+  let ({ eq_desc } as eq), acc = Mapfold.equation funs acc eq in
   let eq = match eq_desc with
     | EQeq(p, e) ->
        Aux.par (matching [] p e)
@@ -124,9 +127,12 @@ let vardec_list funs ({ renaming; subst } as acc) v_list =
   (* default value of combine function, it is not split into a tuple *)
   (* but a single name. The code below makes this assumption. *)
   let vardec v_list ({ var_name } as v) =
-    let t = Env.find var_name subst in
+    let n_list =
+      try [Env.find var_name renaming]
+      with Not_found ->
+        try names [] (Env.find var_name subst) with Not_found -> unbound var_name in
     List.fold_left
-      (fun v_list n -> { v with var_name = n } :: v_list) v_list (names [] t) in
+      (fun v_list n -> { v with var_name = n } :: v_list) v_list n_list in
   List.fold_left vardec [] v_list, acc
 
 let set_index funs acc n =

src/compiler/rewrite/inline.ml

@@ -24,7 +24,7 @@ open Error
 open Mapfold
 
 let error { kind; loc } =
-  Format.eprintf "Error during static reduction\n";
+  Format.eprintf "Error during inlining\n";
   Error.message loc kind;
   raise Error
 

src/compiler/rewrite/period.ml

@@ -82,17 +82,18 @@ let period major time phase period =
   (*  and z = major && (time >= last h) in z] *)
   let h = Ident.fresh "h" in
   let z = Ident.fresh "z" in
-  Aux.e_local (Aux.block_make [Aux.vardec h false
-                                 (Some(Aux.plus (Aux.var time) phase)) None;
-                               Aux.vardec z false None None]
-                 [Aux.eq_and
-                    (Aux.id_eq h (Aux.horizon
-                                    (Aux.ifthenelse (Aux.var z)
-                                        (Aux.plus (Aux.last_star h) period)
-                                        (Aux.last_star h))))
-                       (Aux.id_eq z (Aux.and_op major
-                                       (Aux.greater_or_equal (Aux.var time)
-                                          (Aux.last_star z))))])
+  Aux.e_local
+    (Aux.block_make [Aux.vardec h false
+                       (Some(Aux.plus (Aux.var time) phase)) None;
+                     Aux.vardec z false None None]
+       [Aux.eq_and
+          (Aux.id_eq h (Aux.horizon
+                          (Aux.ifthenelse (Aux.var z)
+                             (Aux.plus (Aux.last_star h) period)
+                             (Aux.last_star h))))
+          (Aux.id_eq z (Aux.and_op major
+                          (Aux.greater_or_equal (Aux.var time)
+                             (Aux.last_star z))))])
     (Aux.var z)
 
 (* Add the extra input parameter "time" for hybrid nodes *)
@@ -103,7 +104,7 @@ let funexp funs acc ({ f_kind } as f) =
      let time, _ = intro acc_local in
      { f with f_args = [Aux.vardec time false None None] :: f_args;
               f_env = Env.add time Typinfo.no_ienv f_env }, acc
-  | _ -> raise Mapfold.Fallback
+  | _ -> Mapfold.funexp funs acc f
 
 (* add the extra time argument for the application of hybrid nodes *)
 let expression funs acc ({ e_desc } as e) =

src/ctests/good/t_3.zls

@@ -1,6 +1,9 @@
 let node f1 () returns (o)
   if true then o = 1 else o = 2
 
+let hybrid f11 (z) returns (o)
+    der o = 1.0 init 0.0 reset z -> 2.0
+
 let node f2 () returns (o)
   o = f1() + f1()
 
@@ -10,4 +13,4 @@ let node f3 () returns (o)
   | B -> do o = f2 () until false then A
   init
     if true then B else A
-  end
+  end