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module("luacov", package.seeall)
local stats = require("luacov.stats")
data = stats.load()
statsfile = stats.start()
tick = package.loaded["luacov.tick"]
ctr = 0
local function on_line(_, line_nr)
if tick then
ctr = ctr + 1
if ctr == 100 then
ctr = 0
stats.save(data, statsfile)
end
end
local name = debug.getinfo(2, "S").source
if name:match("^@") then
name = name:sub(2)
local file = data[name]
if not file then
file = {}
file.max = 0
data[name] = file
end
if line_nr > file.max then
file.max = line_nr
end
local current = file[line_nr]
if not current then
file[line_nr] = 1
else
file[line_nr] = current + 1
end
end
end
local luacovlock = os.tmpname()
function on_exit()
os.remove(luacovlock)
stats.save(data, statsfile)
stats.stop(statsfile)
end
if not tick then
on_exit_trick = io.open(luacovlock, "w")
debug.setmetatable(on_exit_trick, { __gc = on_exit } )
end
debug.sethook(on_line, "l")
rawcoroutinecreate = coroutine.create
function coroutine.create(...)
local co = rawcoroutinecreate(...)
debug.sethook(co, on_line, "l")
return co
end
function coroutine.wrap(...)
local co = rawcoroutinecreate(...)
debug.sethook(co, on_line, "l")
return function()
local r = { coroutine.resume(co) }
if not r[1] then
error(r[2])
end
return unpack(r, 2)
end
end
local rawexit = os.exit
function os.exit(...)
on_exit()
rawexit(...)
end
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