Fix references to file modules

Author: amiralies

analysis/src/References.ml

@@ -459,15 +459,30 @@ let forLocalStamp ~full:{file; extra; package} stamp tip =
 let allReferencesForLocItem ~full:({file; package} as full) locItem =
   match locItem.locType with
   | TopLevelModule moduleName ->
-    let locs =
-      match Hashtbl.find_opt full.extra.fileReferences moduleName with
+    let otherModulesReferences =
+      package.localModules
+      |> Utils.filterMap (fun name ->
+             match ProcessCmt.fileForModule ~package name with
+             | None -> None
+             | Some file -> ProcessCmt.getFullFromCmt ~uri:file.uri)
+      |> List.map (fun full ->
+             match Hashtbl.find_opt full.extra.fileReferences moduleName with
+             | None -> []
+             | Some locs ->
+               locs
+               |> List.map (fun loc ->
+                      (Uri2.fromPath loc.Location.loc_start.pos_fname, [loc])))
+      |> List.flatten
+    in
+    let targetModuleReference =
+      match Hashtbl.find_opt package.pathsForModule moduleName with
       | None -> []
-      | Some locs ->
-        locs
-        |> List.map (fun loc ->
-               (Uri2.fromPath loc.Location.loc_start.pos_fname, [loc]))
+      | Some paths -> (
+        match SharedTypes.getSrc paths with
+        | None -> []
+        | Some src -> [(Uri2.fromPath src, [Utils.topLoc src])])
     in
-    locs
+    List.append targetModuleReference otherModulesReferences
   | Typed (_, _, NotFound) | LModule NotFound | Constant _ -> []
   | TypeDefinition (_, _, stamp) -> forLocalStamp ~full stamp Type
   | Typed (_, _, (LocalReference (stamp, tip) | Definition (stamp, tip)))

analysis/tests/src/expected/Cross.res.txt

@@ -3,6 +3,7 @@ References tests/src/Cross.res 0:17
 {"uri": "Cross.res", "range": {"start": {"line": 0, "character": 15}, "end": {"line": 0, "character": 25}}},
 {"uri": "Cross.res", "range": {"start": {"line": 3, "character": 16}, "end": {"line": 3, "character": 26}}},
 {"uri": "Cross.res", "range": {"start": {"line": 6, "character": 13}, "end": {"line": 6, "character": 23}}},
-{"uri": "Cross.res", "range": {"start": {"line": 8, "character": 16}, "end": {"line": 8, "character": 26}}}
+{"uri": "Cross.res", "range": {"start": {"line": 8, "character": 16}, "end": {"line": 8, "character": 26}}},
+{"uri": "References.res", "range": {"start": {"line": 0, "character": 0}, "end": {"line": 0, "character": 0}}}
 ]