Remove hard module references in m_deps (#11281)

* [cache] break reference in m_deps

* [cache] use path + sign for module deps

* cleanup

* handle module deps from other context in genjson

src/codegen/codegen.ml

@@ -387,7 +387,8 @@ module Dump = struct
 		let dep = Hashtbl.create 0 in
 		List.iter (fun m ->
 			print "%s:\n" (Path.UniqueKey.lazy_path m.m_extra.m_file);
-			PMap.iter (fun _ m2 ->
+			PMap.iter (fun _ (sign,mpath) ->
+				let m2 = (com.cs#get_context sign)#find_module mpath in
 				let file = Path.UniqueKey.lazy_path m2.m_extra.m_file in
 				print "\t%s\n" file;
 				let l = try Hashtbl.find dep file with Not_found -> [] in

src/compiler/server.ml

@@ -307,7 +307,9 @@ let check_module sctx ctx m p =
 			end
 		in
 		let check_dependencies () =
-			PMap.iter (fun _ m2 -> match check m2 with
+			PMap.iter (fun _ (sign,mpath) ->
+				let m2 = (com.cs#get_context sign)#find_module mpath in
+				match check m2 with
 				| None -> ()
 				| Some reason -> raise (Dirty (DependencyDirty(m2.m_path,reason)))
 			) m.m_extra.m_deps;
@@ -407,7 +409,10 @@ let add_modules sctx ctx m p =
 				) m.m_types;
 				TypeloadModule.ModuleLevel.add_module ctx m p;
 				PMap.iter (Hashtbl.replace com.resources) m.m_extra.m_binded_res;
-				PMap.iter (fun _ m2 -> add_modules (tabs ^ "  ") m0 m2) m.m_extra.m_deps
+				PMap.iter (fun _ (sign,mpath) ->
+					let m2 = (com.cs#get_context sign)#find_module mpath in
+					add_modules (tabs ^ "  ") m0 m2
+				) m.m_extra.m_deps
 			)
 		end
 	in

src/context/display/displayJson.ml

@@ -182,13 +182,14 @@ let handler =
 		"server/module", (fun hctx ->
 			let sign = Digest.from_hex (hctx.jsonrpc#get_string_param "signature") in
 			let path = Path.parse_path (hctx.jsonrpc#get_string_param "path") in
-			let cc = hctx.display#get_cs#get_context sign in
+			let cs = hctx.display#get_cs in
+			let cc = cs#get_context sign in
 			let m = try
 				cc#find_module path
 			with Not_found ->
 				hctx.send_error [jstring "No such module"]
 			in
-			hctx.send_result (generate_module cc m)
+			hctx.send_result (generate_module cs cc m)
 		);
 		"server/type", (fun hctx ->
 			let sign = Digest.from_hex (hctx.jsonrpc#get_string_param "signature") in

src/context/memory.ml

@@ -33,12 +33,14 @@ let update_module_type_deps deps md =
 	) md.m_types;
 	!deps
 
-let rec scan_module_deps m h =
+let rec scan_module_deps cs m h =
 	if Hashtbl.mem h m.m_id then
 		()
 	else begin
 		Hashtbl.add h m.m_id m;
-		PMap.iter (fun _ m -> scan_module_deps m h) m.m_extra.m_deps
+		PMap.iter (fun _ (sign,mpath) ->
+			let m = (cs#get_context sign)#find_module mpath in
+			scan_module_deps cs m h) m.m_extra.m_deps
 	end
 
 let module_sign key md =
@@ -61,7 +63,7 @@ let get_out out =
 
 let get_module_memory cs all_modules m =
 	let mdeps = Hashtbl.create 0 in
-	scan_module_deps m mdeps;
+	scan_module_deps cs m mdeps;
 	let deps = ref [Obj.repr null_module] in
 	let out = ref all_modules in
 	let deps = Hashtbl.fold (fun _ md deps ->
@@ -272,8 +274,9 @@ let display_memory com =
 			());
 		if verbose then begin
 			print (Printf.sprintf "      %d total deps" (List.length deps));
-			PMap.iter (fun _ md ->
-				print (Printf.sprintf "      dep %s%s" (s_type_path md.m_path) (module_sign key md));
+			PMap.iter (fun _ (sign,mpath) ->
+				let md = (com.cs#get_context sign)#find_module mpath in
+				print (Printf.sprintf "      dep %s%s" (s_type_path mpath) (module_sign key md));
 			) m.m_extra.m_deps;
 		end;
 		flush stdout

src/core/json/genjson.ml

@@ -707,7 +707,7 @@ let generate_module_type ctx mt =
 
 (* module *)
 
-let generate_module cc m =
+let generate_module cs cc m =
 	jobject [
 		"id",jint m.m_id;
 		"path",generate_module_path m.m_path;
@@ -718,10 +718,12 @@ let generate_module cc m =
 			| MSGood -> "Good"
 			| MSBad reason -> Printer.s_module_skip_reason reason
 			| MSUnknown -> "Unknown");
-		"dependencies",jarray (PMap.fold (fun m acc -> (jobject [
-			"path",jstring (s_type_path m.m_path);
-			"sign",jstring (Digest.to_hex m.m_extra.m_sign);
-		]) :: acc) m.m_extra.m_deps []);
+		"dependencies",jarray (PMap.fold (fun (sign,mpath) acc ->
+			(jobject [
+				"path",jstring (s_type_path mpath);
+				"sign",jstring (Digest.to_hex ((cs#get_context sign)#find_module mpath).m_extra.m_sign);
+			]) :: acc
+		) m.m_extra.m_deps []);
 		"dependents",jarray (List.map (fun m -> (jobject [
 			"path",jstring (s_type_path m.m_path);
 			"sign",jstring (Digest.to_hex m.m_extra.m_sign);

src/core/tFunctions.ml

@@ -233,8 +233,8 @@ let null_abstract = {
 }
 
 let add_dependency ?(skip_postprocess=false) m mdep =
-	if m != null_module && m != mdep then begin
-		m.m_extra.m_deps <- PMap.add mdep.m_id mdep m.m_extra.m_deps;
+	if m != null_module && (m.m_path != mdep.m_path || m.m_extra.m_sign != mdep.m_extra.m_sign) then begin
+		m.m_extra.m_deps <- PMap.add mdep.m_id (mdep.m_extra.m_sign, mdep.m_path) m.m_extra.m_deps;
 		(* In case the module is cached, we'll have to run post-processing on it again (issue #10635) *)
 		if not skip_postprocess then m.m_extra.m_processed <- 0
 	end

src/core/tPrinting.ml

@@ -605,7 +605,7 @@ module Printer = struct
 			"m_cache_state",s_module_cache_state me.m_cache_state;
 			"m_added",string_of_int me.m_added;
 			"m_checked",string_of_int me.m_checked;
-			"m_deps",s_pmap string_of_int (fun m -> snd m.m_path) me.m_deps;
+			"m_deps",s_pmap string_of_int (fun (_,m) -> snd m) me.m_deps;
 			"m_processed",string_of_int me.m_processed;
 			"m_kind",s_module_kind me.m_kind;
 			"m_binded_res",""; (* TODO *)

src/core/tType.ml

@@ -390,7 +390,7 @@ and module_def_extra = {
 	mutable m_added : int;
 	mutable m_checked : int;
 	mutable m_processed : int;
-	mutable m_deps : (int,module_def) PMap.t;
+	mutable m_deps : (int,(string (* sign *) * path)) PMap.t;
 	mutable m_kind : module_kind;
 	mutable m_binded_res : (string, string) PMap.t;
 	mutable m_if_feature : (string *(tclass * tclass_field * bool)) list;