# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1546136694 -3600
# Node ID 0dbb285f903edca5e8db751578b4fecfb1808933
# Parent  8132030ff04a7541a60f0e4eaa7f80b619b4fa3c
util.promise: Remove references to callbacks after settling promise

This is to help the garbage collector.

diff -r 8132030ff04a -r 0dbb285f903e util/promise.lua
--- a/util/promise.lua	Sun Dec 30 03:20:37 2018 +0100
+++ b/util/promise.lua	Sun Dec 30 03:24:54 2018 +0100
@@ -49,6 +49,9 @@
 	for _, cb in ipairs(cbs) do
 		cb(value);
 	end
+	-- No need to keep references to callbacks
+	promise._pending_on_fulfilled = nil;
+	promise._pending_on_rejected = nil;
 	return true;
 end