diff options
Diffstat (limited to '')
| -rw-r--r-- | lib/protocols/Evaluator.ml | 11 | ||||
| -rw-r--r-- | lib/protocols/Evaluator.mli | 10 |
2 files changed, 21 insertions, 0 deletions
diff --git a/lib/protocols/Evaluator.ml b/lib/protocols/Evaluator.ml new file mode 100644 index 0000000..789fb9d --- /dev/null +++ b/lib/protocols/Evaluator.ml @@ -0,0 +1,11 @@ +class type implementation = object + method invoke : Handle.t -> (Handle.t, Concepts.Condition.condition) result +end + +type Handle.protocol += Evaluator of implementation +type t = implementation + +let make impl = Evaluator (impl :> implementation) +let from handle = Handle.into handle (function Evaluator impl -> Some impl | _ -> None) +let require = Handle.require from +let invoke i program = Handle.invoke i (fun o -> o#invoke program) diff --git a/lib/protocols/Evaluator.mli b/lib/protocols/Evaluator.mli new file mode 100644 index 0000000..3d42b5c --- /dev/null +++ b/lib/protocols/Evaluator.mli @@ -0,0 +1,10 @@ +type t + +class type implementation = object + method invoke : Handle.t -> (Handle.t, Concepts.Condition.condition) result +end + +val make : #implementation -> Handle.protocol +val from : Handle.t -> t Handle.interface option +val require : Handle.t -> (t Handle.interface, Concepts.Condition.condition) result +val invoke : t Handle.interface -> Handle.t -> (Handle.t, Concepts.Condition.condition) result |