# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1540637761 -7200
# Node ID ce403b6470f863cfd0464f74722ca100cb5951e9
# Parent  0bc399953c2716b990e4da8b4e2455167ce7f06b
util.serialization: Encode non-fatal error in way that can be restored

It could previously encode to eg `{ [nil] = ... }` which doesn't get decoded

diff -r 0bc399953c27 -r ce403b6470f8 util/serialization.lua
--- a/util/serialization.lua	Sat Oct 27 12:54:57 2018 +0200
+++ b/util/serialization.lua	Sat Oct 27 12:56:01 2018 +0200
@@ -39,7 +39,7 @@
 end
 
 local function nonfatal_fallback(x, why)
-	return s_format("nil --[[%s: %s]]", type(x), why or "fail");
+	return s_format("{__type=%q,__error=%q}", type(x), why or "fail");
 end
 
 local string_escapes = {