prosody
5850d24a4ad3
tools/linedebug.lua

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tools/linedebug.lua @ 11193:5850d24a4ad3

tools/linedebug: Print each line of source executed The extremely verbose debug output. Nice for getting some idea which code runs most often, or where it pauses for no reason etc.
author Kim Alvefur <zash@zash.se>
date Wed, 28 Oct 2020 23:05:15 +0100
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11192:11f285a439a4 11193:5850d24a4ad3
1 local data = {}
2 local getinfo = debug.getinfo;
3 local function linehook(ev, li)
4 local S = getinfo(2, "S");
5 if S and S.source and S.source:match"^@" then
6 local file = S.source:sub(2);
7 local lines = data[file];
8 if not lines then
9 lines = {};
10 data[file] = lines;
11 for line in io.lines(file) do
12 lines[#lines+1] = line;
13 end
14 end
15 io.stderr:write(ev, " ", file, " ", li, " ", lines[li], "\n");
16 end
17 end
18 debug.sethook(linehook, "l");