Nim: fixup defines for constructible C++ objects

Ref #91

include/nim/genode.nim

@@ -24,12 +24,11 @@ type RpcEffect* = object of RootEffect
 type Constructible* {.
   importcpp: "Genode::Constructible", header: "<util/reconstructible.h>", final, pure.} [T] = object
 
-template defineConstructible*(Final, Base: untyped) =
-  type Final* = Constructible[Base]
-  proc construct*(obj: Final) {.importcpp: "#.construct()".}
-  proc construct*(obj: ref Final) {.importcpp: "(*#).construct()".}
-  proc destruct*(obj: Final) {.importcpp: "#.destruct()".}
-  proc destruct*(obj: ref Final) {.importcpp: "(*#).destruct()".}
+proc construct*[T](x: Constructible[T]) {.importcpp.}
+  ## Construct a constructible C++ object.
+
+proc destruct*[T](x: Constructible[T]) {.importcpp.}
+  ## Destruct a constructible C++ object.
 
 #
 # Signals

include/nim/nitpickerclient.nim

@@ -27,9 +27,6 @@ type
 proc construct(conn: Connection; label: cstring) {.
   importcpp: "#.construct(#)".}
 
-proc destruct(conn: Connection) {.
-  importcpp: "#.destruct()".}
-
 proc newNitpickerClient*(label = ""): NitpickerClient =
   new result
   construct result.conn, label

include/nim/reportclient.nim

@@ -28,9 +28,6 @@ type
 proc construct(c: Connection, label: cstring, bufferSize: csize) {.
   importcpp: "#.construct(*genodeEnv, @)", tags: [RpcEffect].}
 
-proc destruct(c: Connection) {.tags: [RpcEffect],
-  importcpp: "#.destruct()".}
-
 proc dataspace(c: Connection): DataspaceCapability {.tags: [RpcEffect],
   importcpp: "#->dataspace()".}
 

include/nim/romclient.nim

@@ -29,9 +29,6 @@ type
 proc construct(c: Connection, label: cstring) {.
   importcpp: "#.construct(*genodeEnv, @)", tags: [RpcEffect].}
 
-proc destruct(c: Connection) {.tags: [RpcEffect],
-  importcpp: "#.destruct()".}
-
 proc dataspace(c: Connection): DataspaceCapability {.tags: [RpcEffect],
   importcpp: "#->dataspace()".}
   ## Return the current dataspace capability from the ROM server.