From a335b6de27f7da7df46ec7a4091b6d1ea8ba2fba Mon Sep 17 00:00:00 2001 From: Kim Alvefur Date: Sun, 17 Mar 2019 21:16:27 +0100 Subject: util.serialization: Allow overriding table iterator Could be useful to eg swap it out with sorted_pairs to get a stable serialization. Default to next() wrapper to avoid metatable tricks from pairs(). --- util/serialization.lua | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'util') diff --git a/util/serialization.lua b/util/serialization.lua index c64bfec1..2ead8c12 100644 --- a/util/serialization.lua +++ b/util/serialization.lua @@ -33,6 +33,10 @@ local function to_hex(s) return (s_gsub(s, ".", char_to_hex)); end +local function rawpairs(t) + return next, t, nil; +end + local function fatal_error(obj, why) error("Can't serialize "..type(obj) .. (why and ": ".. why or "")); end @@ -122,6 +126,7 @@ local function new(opt) local freeze = opt.freeze; local maxdepth = opt.maxdepth or 127; local multirefs = opt.multiref; + local table_pairs = opt.table_iterator or rawpairs; -- serialize one table, recursively -- t - table being serialized @@ -164,7 +169,7 @@ local function new(opt) local numkey = 1; local ktyp, vtyp; local had_items = false; - for k,v in next,t do + for k,v in table_pairs(t) do had_items = true; o[l], l = itemstart, l + 1; o[l], l = indent, l + 1; -- cgit v1.2.3