Software / code / prosody
Changeset
9863:aebfd1601ae2
util.serialization: Optimize handling of last table separator
Fewer next() calls and a step towards allowing use of a different iterator.
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Sun, 17 Mar 2019 20:40:01 +0100 |
| parents | 9862:f5623a1b33e5 |
| children | 9864:9d80e679c371 |
| files | util/serialization.lua |
| diffstat | 1 files changed, 5 insertions(+), 7 deletions(-) [+] |
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--- a/util/serialization.lua Mon Mar 18 09:50:23 2019 +0000 +++ b/util/serialization.lua Sun Mar 17 20:40:01 2019 +0100 @@ -163,7 +163,9 @@ 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 @@ 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;
