fol evaluator

2 files changed, 36 insertions, 31 deletions

diff --git a/lib/protocols/Program.ml b/lib/protocols/Program.ml
index b82cafc..49e6e2d 100644
--- a/lib/protocols/Program.ml
+++ b/lib/protocols/Program.ml
@@ -1,17 +1,20 @@
-class type implementation = object
-  method entry_points : string BatFingerTree.t
-
-  method invoke :
-    entry:string ->
-    bindings:Concepts.Tuple.t ->
-    Context.t ->
-    (Handle.t, Concepts.Condition.condition) result
+module type PROGRAM = sig
+  type t
 end
 
-type Handle.protocol += Program of implementation
-type t = implementation
+module Make (P : PROGRAM) = struct
+  class type implementation = object
+    method invoke :
+      program:P.t ->
+      Context.t ->
+      (Handle.t, Concepts.Condition.condition) result
+  end
+
+  type Handle.protocol += Program of implementation
 
-let make impl = Program (impl :> implementation)
-let from handle = Handle.into handle (function Program impl -> Some impl | _ -> None)
-let entry_points i = Handle.invoke i (fun o -> o#entry_points)
-let invoke i ~entry ~bindings ctx = Handle.invoke i (fun o -> o#invoke ~entry ~bindings ctx)
+  type t = implementation
+
+  let make impl = Program (impl :> implementation)
+  let from handle = Handle.into handle (function Program impl -> Some impl | _ -> None)
+  let invoke i ~program ctx = Handle.invoke i (fun o -> o#invoke ~program ctx)
+end
diff --git a/lib/protocols/Program.mli b/lib/protocols/Program.mli
index a795f16..1d6c3ae 100644
--- a/lib/protocols/Program.mli
+++ b/lib/protocols/Program.mli
@@ -1,21 +1,23 @@
-type t
+module type PROGRAM = sig
+  type t
+end
+
+module Make (P : PROGRAM) : sig
+  type t
+
+  class type implementation = object
+    method invoke :
+      program:P.t ->
+      Context.t ->
+      (Handle.t, Concepts.Condition.condition) result
+  end
 
-class type implementation = object
-  method entry_points : string BatFingerTree.t
-  method invoke :
-    entry:string ->
-    bindings:Concepts.Tuple.t ->
+  val make : #implementation -> Handle.protocol
+  val from : Handle.t -> t Handle.interface option
+
+  val invoke :
+    t Handle.interface ->
+    program:P.t ->
     Context.t ->
     (Handle.t, Concepts.Condition.condition) result
 end
-
-val make : #implementation -> Handle.protocol
-val from : Handle.t -> t Handle.interface option
-val entry_points : t Handle.interface -> string BatFingerTree.t
-
-val invoke :
-  t Handle.interface ->
-  entry:string ->
-  bindings:Concepts.Tuple.t ->
-  Context.t ->
-  (Handle.t, Concepts.Condition.condition) result