From 487f96c2f1700d17e5ed7623183a26a5345a3537 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Sat, 26 Sep 2020 23:17:53 +0200
Subject: util.serialization: Let freeze metamethod return a literal string

Enables custom serialization, such as creating a datatype that
serializes into a variable reference.
---
 util/serialization.lua | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/util/serialization.lua b/util/serialization.lua
index d70e92ba..d310a3e8 100644
--- a/util/serialization.lua
+++ b/util/serialization.lua
@@ -150,6 +150,10 @@ local function new(opt)
 
 				if type(fr) == "function" then
 					t = fr(t);
+					if type(t) == "string" then
+						o[l], l = t, l + 1;
+						return l;
+					end
 					if type(tag) == "string" then
 						o[l], l = tag, l + 1;
 					end
-- 
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