From 75c0c5c2b460614fba6705c6e0d64859815a613c Mon Sep 17 00:00:00 2001
From: Emilio Jesus Gallego Arias
Date: Sun, 24 Sep 2017 00:40:19 +0200
Subject: [stm] Switch to a functional API

We make the Stm API functional over an opaque `doc` type. This allows
to have a much better picture of what the toplevel is doing; now
almost all users of STM private data are marked by typing.

For now only, the API is functional; a PR switching the internals
should come soon thou; however we must first fix some initialization
bugs.

Due to some users, we modify `feedback` internally to include a
"document id" field; we don't expose this change in the IDE protocol
yet.
---
 API/API.mli | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'API/API.mli')

diff --git a/API/API.mli b/API/API.mli
index 3ed326ff0e..5c421ade48 100644
--- a/API/API.mli
+++ b/API/API.mli
@@ -5768,8 +5768,11 @@ end
 
 module Stm :
 sig
+  type doc
   type state
-  val state_of_id :
+
+  val get_doc : Feedback.doc_id -> doc
+  val state_of_id : doc:doc ->
     Stateid.t -> [ `Valid of state option | `Expired | `Error of exn ]
 end
 
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