# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1540566565 -3600
# Node ID 7c65e3f38e6e4f99ebbcc58a5c9809a980660061
# Parent  5fa73fbb047f2d1f0df1c3f8fc943f106098f077
util.promise: Switch from pcall to xpcall to get tracebacks on exceptions

diff -r 5fa73fbb047f -r 7c65e3f38e6e util/promise.lua
--- a/util/promise.lua	Fri Oct 26 09:23:31 2018 +0100
+++ b/util/promise.lua	Fri Oct 26 16:09:25 2018 +0100
@@ -15,7 +15,7 @@
 		return default;
 	end
 	return function (param)
-		local ok, ret = pcall(f, param);
+		local ok, ret = xpcall(f, debug.traceback, param);
 		if ok then
 			resolve(ret);
 		else