--- a/src/Pure/PIDE/document.ML Sun Apr 06 21:01:45 2014 +0200
+++ b/src/Pure/PIDE/document.ML Mon Apr 07 13:06:34 2014 +0200
@@ -18,7 +18,7 @@
type state
val init_state: state
val define_blob: string -> string -> state -> state
- type blob_digest = (string * string option) Exn.result
+ type blob_digest = (string * string * string option) Exn.result
val define_command: Document_ID.command -> string -> blob_digest list -> string ->
state -> state
val remove_versions: Document_ID.version list -> state -> state
@@ -219,7 +219,8 @@
(** main state -- document structure and execution process **)
-type blob_digest = (string * string option) Exn.result; (* file node name, raw digest*)
+type blob_digest =
+ (string * string * string option) Exn.result; (* file node name, path, raw digest*)
type execution =
{version_id: Document_ID.version, (*static version id*)
@@ -291,6 +292,10 @@
NONE => error ("Undefined blob: " ^ digest)
| SOME content => content);
+fun resolve_blob state (blob_digest: blob_digest) =
+ blob_digest |> Exn.map_result (fn (file, path, raw_digest) =>
+ (file, path, Option.map (the_blob state) raw_digest));
+
(* commands *)
@@ -338,7 +343,7 @@
val blobs' =
(commands', Symtab.empty) |->
Inttab.fold (fn (_, (_, blobs, _)) => blobs |>
- fold (fn Exn.Res (_, SOME b) => Symtab.update (b, the_blob state b) | _ => I));
+ fold (fn Exn.Res (_, _, SOME b) => Symtab.update (b, the_blob state b) | _ => I));
in (versions', blobs', commands', execution) end);
@@ -505,7 +510,7 @@
val command_visible = visible_command node command_id';
val command_overlays = overlays node command_id';
val (command_name, blob_digests, span0) = the_command state command_id';
- val blobs = (map o Exn.map_result o apsnd o Option.map) (the_blob state) blob_digests;
+ val blobs = map (resolve_blob state) blob_digests;
val span = Lazy.force span0;
val eval' =