1 files changed, 19 insertions, 0 deletions
diff --git a/lib/protocols/Executable.mli b/lib/protocols/Executable.mli
new file mode 100644
index 0000000..ccb63e1
--- /dev/null
+++ b/lib/protocols/Executable.mli
@@ -0,0 +1,19 @@
+type t
+
+(** [within] is the directory the program's paths resolve against: the
+    branch state a stored program was read through, or whatever part of
+    the tree a caller hands over. *)
+class type implementation = object
+  method invoke :
+    Handle.t list -> within: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 list ->
+  within:Handle.t ->
+  (Handle.t, Concepts.Condition.condition) result