From 8cf8879941ae9feb51fcba58ea6fdccf49a96048 Mon Sep 17 00:00:00 2001
From: alaviss <alaviss@users.noreply.github.com>
Date: Tue, 21 Apr 2020 09:21:36 +0000
Subject: [PATCH] asyncdispatch: export Callback (#14042) [backport]

This let us see the definition of `Callback` in docs, which is required
to even make use of asyncdispatch.

Ref #13539.

(cherry picked from commit 7beed44fc9e80882ba54f222994e522377c1ad1d)
---
 lib/pure/asyncdispatch.nim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/pure/asyncdispatch.nim b/lib/pure/asyncdispatch.nim
index f540c52074..4ea97259df 100644
--- a/lib/pure/asyncdispatch.nim
+++ b/lib/pure/asyncdispatch.nim
@@ -267,7 +267,7 @@ when defined(windows) or defined(nimdoc):
       pcd: PostCallbackDataPtr
     AsyncEvent* = ptr AsyncEventImpl
 
-    Callback = proc (fd: AsyncFD): bool {.closure, gcsafe.}
+    Callback* = proc (fd: AsyncFD): bool {.closure, gcsafe.}
 
   proc hash(x: AsyncFD): Hash {.borrow.}
   proc `==`*(x: AsyncFD, y: AsyncFD): bool {.borrow.}
@@ -1093,7 +1093,7 @@ else:
                                      # queue.
   type
     AsyncFD* = distinct cint
-    Callback = proc (fd: AsyncFD): bool {.closure, gcsafe.}
+    Callback* = proc (fd: AsyncFD): bool {.closure, gcsafe.}
 
     AsyncData = object
       readList: seq[Callback]