1 files changed, 126 insertions, 0 deletions
diff --git a/src/toFromInterp_lib.ml b/src/toFromInterp_lib.ml
new file mode 100644
index 00000000..c29fcd84
--- /dev/null
+++ b/src/toFromInterp_lib.ml
@@ -0,0 +1,126 @@
+(************************************************************)
+(* Support for toFromInterp                                 *)
+(************************************************************)
+
+open Sail_lib;;
+open Value;;
+
+type vector_order =
+ | Order_inc
+ | Order_dec
+
+(* zencoded variants are for the OCaml backend, non-zencoded are for the Lem backend compiled to OCaml.
+   Sometimes they're just aliased. *)
+
+let zunitFromInterpValue v = match v with
+  | V_unit -> ()
+  | _ -> failwith "invalid interpreter value for unit"
+
+let zunitToInterpValue () = V_unit
+
+let unitFromInterpValue = zunitFromInterpValue
+let unitToInterpValue = zunitToInterpValue
+
+let zatomFromInterpValue typq_'n v = match v with
+  | V_int i when typq_'n = i -> i
+  | _ -> failwith "invalid interpreter value for atom"
+
+let zatomToInterpValue typq_'n v =
+  assert (typq_'n = v);
+  V_int v
+
+let atomFromInterpValue = zatomFromInterpValue
+let atomToInterpValue = zatomToInterpValue 
+
+let zintFromInterpValue v = match v with
+  | V_int i -> i
+  | _ -> failwith "invalid interpreter value for int"
+
+let zintToInterpValue v = V_int v
+
+let intFromInterpValue = zintFromInterpValue
+let intToInterpValue = zintToInterpValue 
+
+let znatFromInterpValue v = match v with
+  | V_int i when i >= Big_int.zero -> i
+  | _ -> failwith "invalid interpreter value for nat"
+
+let znatToInterpValue v =
+  assert (v >= Big_int.zero);
+  V_int v
+
+let natFromInterpValue = znatFromInterpValue
+let natToInterpValue = znatToInterpValue 
+
+
+let zboolFromInterpValue v = match v with
+  | V_bool b -> b
+  | _ -> failwith "invalid interpreter value for bool"
+
+let zboolToInterpValue v = V_bool v
+
+let boolFromInterpValue = zboolFromInterpValue
+let boolToInterpValue = zboolToInterpValue 
+
+let zstringFromInterpValue v = match v with
+  | V_string s -> s
+  | _ -> failwith "invalid interpreter value for string"
+
+let zstringToInterpValue v = V_string v
+
+let stringFromInterpValue = zstringFromInterpValue
+let stringToInterpValue = zstringToInterpValue 
+
+let zlistFromInterpValue typq_'a v = match v with
+  | V_list vs -> List.map typq_'a vs
+  | _ -> failwith "invalid interpreter value for list"
+
+let zlistToInterpValue typq_'a v = V_list (List.map typq_'a v)
+
+let listFromInterpValue = zlistFromInterpValue
+let listToInterpValue = zlistToInterpValue 
+
+let zvectorFromInterpValue typq_'n typq_'ord typq_'a v = match v with
+  | V_vector vs ->
+     assert (Big_int.of_int (List.length vs) = typq_'n);
+     List.map typq_'a vs
+  | _ -> failwith "invalid interpreter value for vector"
+
+let zvectorToInterpValue typq_'n typq_'ord typq_'a v =
+  assert (Big_int.of_int (List.length v) = typq_'n);
+  V_vector (List.map typq_'a v)
+
+let vectorFromInterpValue = zvectorFromInterpValue
+let vectorToInterpValue = zvectorToInterpValue 
+
+let zbitFromInterpValue v = match v with
+  | V_bit b -> b
+  | _ -> failwith "invalid interpreter value for bit"
+
+let zbitToInterpValue v = V_bit v
+
+let bitFromInterpValue = zbitFromInterpValue
+let bitToInterpValue = zbitToInterpValue
+
+let optionFromInterpValue typq_'a v = match v with
+  | V_ctor ("None", [v0]) -> None
+  | V_ctor ("Some", [v0]) -> Some (typq_'a v0)
+  | _ -> failwith "invalid interpreter value for option"
+
+let optionToInterpValue typq_'a v = match v with
+  | None -> V_ctor ("None", [(unitToInterpValue ())])
+  | Some (v0) -> V_ctor ("Some", [(typq_'a v0)])
+
+
+let bitsFromInterpValue typq_'n v = match v with
+  | V_vector vs ->
+     assert (Big_int.of_int (List.length vs) = typq_'n);
+     Lem.wordFromBitlist (List.map (fun b -> bitFromInterpValue b |> Sail_lib.bool_of_bit) vs)
+  | _ -> failwith "invalid interpreter value for bits"
+
+let bitsToInterpValue typq_'n v =
+  let bs = Lem.bitlistFromWord v in
+  assert (Big_int.of_int (List.length bs) = typq_'n);
+  V_vector (List.map (fun b -> Sail_lib.bit_of_bool b |> bitToInterpValue) bs)
+
+