From cffb6e6e7bf6c2178ab8dafd092f59c0b521d69b Mon Sep 17 00:00:00 2001 From: Kim Alvefur Date: Sun, 17 Mar 2019 20:40:01 +0100 Subject: util.serialization: Optimize handling of last table separator Fewer next() calls and a step towards allowing use of a different iterator. --- util/serialization.lua | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) (limited to 'util') diff --git a/util/serialization.lua b/util/serialization.lua index 7ae77a3a..c64bfec1 100644 --- a/util/serialization.lua +++ b/util/serialization.lua @@ -163,7 +163,9 @@ local function new(opt) local indent = s_rep(indentwith, d); local numkey = 1; local ktyp, vtyp; + local had_items = false; for k,v in next,t do + had_items = true; o[l], l = itemstart, l + 1; o[l], l = indent, l + 1; ktyp, vtyp = type(k), type(v); @@ -194,14 +196,10 @@ local function new(opt) else o[l], l = ser(v), l + 1; end - -- last item? - if next(t, k) ~= nil then - o[l], l = itemsep, l + 1; - else - o[l], l = itemlast, l + 1; - end + o[l], l = itemsep, l + 1; end - if next(t) ~= nil then + if had_items then + o[l - 1] = itemlast; o[l], l = s_rep(indentwith, d-1), l + 1; end o[l], l = tend, l +1; -- cgit v1.2.3