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mirror of https://github.com/koreader/koreader synced 2024-11-13 19:11:25 +00:00
koreader/frontend/dbg.lua
Frans de Jonge a2dcfe9aec
[doc] Tag @todo, @fixme and @warning (#5244)
This commit standardizes the various todos around the code a bit in a manner recognized by LDoc.

Besides drawing more attention by being displayed in the developer docs, they're also extractable with LDoc on the command line:

```sh
ldoc --tags todo,fixme *.lua
```

However, whether that particular usage offers any advantage over other search tools is questionable at best.

* and some random beautification
2019-08-23 19:53:53 +02:00

103 lines
2.3 KiB
Lua

local logger = require("logger")
local dump = require("dump")
local isAndroid, android = pcall(require, "android")
local Dbg = {
-- set to nil so first debug:turnOff call won't be skipped
is_on = nil,
is_verbose = nil,
ev_log = nil,
}
local Dbg_mt = {}
local function LvDEBUG(lv, ...)
local line = ""
for i,v in ipairs({...}) do
if type(v) == "table" then
line = line .. " " .. dump(v, lv)
else
line = line .. " " .. tostring(v)
end
end
if isAndroid then
android.LOGV(line)
else
io.stdout:write(string.format("# %s %s\n", os.date("%x-%X"), line))
io.stdout:flush()
end
end
function Dbg:turnOn()
if self.is_on == true then return end
self.is_on = true
logger:setLevel(logger.levels.dbg)
Dbg_mt.__call = function(dbg, ...) LvDEBUG(math.huge, ...) end
Dbg.guard = function(_, mod, method, pre_guard, post_guard)
local old_method = mod[method]
mod[method] = function(...)
if pre_guard then
pre_guard(...)
end
local values = {old_method(...)}
if post_guard then
post_guard(...)
end
return unpack(values)
end
end
Dbg.dassert = function(check, msg)
assert(check, msg)
return check
end
--- @todo close ev.log fd for children
-- create or clear ev log file
self.ev_log = io.open("ev.log", "w")
end
function Dbg:turnOff()
if self.is_on == false then return end
self.is_on = false
logger:setLevel(logger.levels.info)
function Dbg_mt.__call() end
function Dbg.guard() end
Dbg.dassert = function(check)
return check
end
if self.ev_log then
io.close(self.ev_log)
self.ev_log = nil
end
end
function Dbg:setVerbose(verbose)
self.is_verbose = verbose
end
function Dbg:v(...)
if self.is_verbose then
LvDEBUG(math.huge, ...)
end
end
function Dbg:logEv(ev)
local ev_value = tostring(ev.value)
local log = ev.type.."|"..ev.code.."|"
..ev_value.."|"..ev.time.sec.."|"..ev.time.usec.."\n"
if self.ev_log then
self.ev_log:write(log)
self.ev_log:flush()
end
end
function Dbg:traceback()
LvDEBUG(math.huge, debug.traceback())
end
setmetatable(Dbg, Dbg_mt)
Dbg:turnOff()
return Dbg