chore: merge from remote branch

.github/pull_request_template.md

@@ -1,5 +1,5 @@
 ---
 - [ ] I have reviewed CONTRIBUTING.md.
 - [ ] My commits and title use the [Conventional Commit](https://www.conventionalcommits.org/en/v1.0.0/) format.
-- [ ] I have documented any breaking changes according to [SemVer](https://semver.org/).
+- [ ] I have documented changes and additions in the CHANGELOG.md.
 ---

.github/workflows/build.yml

@@ -27,7 +27,7 @@ jobs:
         with:
           go-version: '1.17.7'
       - name: Build
-        run: GOOS=${{ matrix.goos }} GOARCH=${{ matrix.goarch }} go build
+        run: GOOS=${{ matrix.goos }} GOARCH=${{ matrix.goarch }} make
       - uses: actions/upload-artifact@v2
         if: matrix.goos == 'windows'
         with:

CHANGELOG.md

@@ -46,6 +46,8 @@ includes git commit, branch, and (new!!) release name.
 - Added `fg` and `bg` builtins
 - `job.foreground()` and `job.background()`, when `job` is a job object,
 foreground and backgrounds a job respectively.
+- Friendlier functions to the `hilbish.runner` interface, which also allow
+having and using multiple runners.
 
 ### Changed
 - **Breaking Change:** Upgraded to Lua 5.4.
@@ -56,6 +58,9 @@ This is probably one of (if not the) biggest things in this release.
 user input, exit code, and error. User input has been added to the return to
 account for runners wanting to prompt for continued input, and to add it
 properly to history.
+- **Breaking Change:** Job objects and timers are now Lua userdata instead
+of a table, so their functions require you to call them with a colon instead
+of a dot. (ie. `job.stop()` -> `job:stop()`)
 - All `fs` module functions which take paths now implicitly expand ~ to home.
 
 ### Fixed

CONTRIBUTING.md

@@ -29,8 +29,9 @@ For any code contributions (Lua and/or Go), you should follow these rules:
 1. Ensure that any new install or build dependencies are documented in
 the README.md and pull request.
 
-2. Mention any and all changes, this includes useful file locations and
-breaking changes.
+2. Mention any and all changes, feature additons, removals, etc. This includes
+useful file locations and breaking changes. Document them in the [changelog](CHANGELOG.md)
+in the pull request.
 
 3. We use [Semver](http://semver.org/) for versioning and
 [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/)

api.go

@@ -476,7 +476,7 @@ func hltimeout(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 	timer := timers.create(timerTimeout, interval, cb)
 	timer.start()
 	
-	return c.PushingNext1(t.Runtime, timer.lua()), nil
+	return c.PushingNext1(t.Runtime, rt.UserDataValue(timer.ud)), nil
 }
 
 // interval(cb, time)
@@ -502,7 +502,7 @@ func hlinterval(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 	timer := timers.create(timerInterval, interval, cb)
 	timer.start()
 
-	return c.PushingNext1(t.Runtime, timer.lua()), nil
+	return c.PushingNext1(t.Runtime, rt.UserDataValue(timer.ud)), nil
 }
 
 // complete(scope, cb)

docs/jobs.txt

@@ -20,8 +20,11 @@ and `execPath` is an absolute path for the command executable.
 - `disown(id)`: Removes a job by ID from the job table.
 
 # Job Object
-A job object on the Lua side is a table with some functions.
-On the under side it represents a job in the job table.
+A job object is a piece of `userdata`. All the functions of a job require
+you to call them with a colon, since they are *methods* for the job object.
+Example: hilbish.jobs.last():foreground()
+Which will foreground the last job.
+
 You can still have a job object for a disowned job,
 it just won't be *working* anywhere. :^)
 

docs/runner-mode.txt

@@ -35,8 +35,21 @@ The exit code has to be a number, it will be 0 otherwise and the error can be
 `nil` to indicate no error.
 
 ## Functions
-These are the functions for the `hilbish.runner` interface
+These are the "low level" functions for the `hilbish.runner` interface.
 
 + setMode(mode) > The same as `hilbish.runnerMode`
 + sh(input) -> input, code, err > Runs `input` in Hilbish's sh interpreter
 + lua(input) -> input, code, err > Evals `input` as Lua code
+
+The others here are defined in Lua and have EmmyLua documentation.
+These functions should be preferred over the previous ones.
++ setCurrent(mode) > The same as `setMode`, but works with runners managed
+via the functions below.
++ add(name, runner) > Adds a runner to a table of available runners. The `runner`
+argument is either a function or a table with a run callback.
++ set(name, runner) > The same as `add` but requires passing a table and
+overwrites if the `name`d runner already exists.
++ get(name) > runner > Gets a runner by name. It is a table with at least a
+run function, to run input.
++ exec(cmd, runnerName) > Runs `cmd` with a runner. If `runnerName` isn't passed,
+the current runner mode is used.

docs/timers.txt

@@ -16,9 +16,17 @@ a timer via ID.
 when the timer is triggered.
 
 # Timer Object
-Those previously mentioned functions return a `timer` object, to which you can
-stop and start a timer again. The functions of the timers interface also
-return a timer object.
+All those previously mentioned functions return a `timer` object, to which
+you can stop and start a timer again.
+
+An example of usage:
+local t = hilbish.timers.create(1, 5000, function()
+	print 'hello!'
+end)
+
+t:stop()
+print(t.running, t.duration, t.type)
+t:start()
 
 ## Properties
 - `duration`: amount of time the timer runs for in milliseconds

init_windows.go

@@ -0,0 +1,11 @@
+// +build windows
+
+package main
+
+import "golang.org/x/sys/windows"
+
+func init() {
+	var mode uint32
+	windows.GetConsoleMode(windows.Stdout, &mode)
+	windows.SetConsoleMode(windows.Stdout, mode | windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING)
+}

job.go

@@ -3,6 +3,7 @@ package main
 import (
 	"bytes"
 	"errors"
+	"fmt"
 	"io"
 	"os"
 	"os/exec"
@@ -15,6 +16,7 @@ import (
 )
 
 var jobs *jobHandler
+var jobMetaKey = rt.StringValue("hshjob")
 
 type job struct {
 	cmd string
@@ -32,6 +34,7 @@ type job struct {
 	cmderr io.Writer
 	stdout *bytes.Buffer
 	stderr *bytes.Buffer
+	ud *rt.UserData
 }
 
 func (j *job) start() error {
@@ -64,7 +67,7 @@ func (j *job) start() error {
 	j.pid = proc.Pid
 	j.running = true
 
-	hooks.Em.Emit("job.start", j.lua())
+	hooks.Em.Emit("job.start", rt.UserDataValue(j.ud))
 
 	return err
 }
@@ -79,7 +82,7 @@ func (j *job) stop() {
 
 func (j *job) finish() {
 	j.running = false
-	hooks.Em.Emit("job.done", j.lua())
+	hooks.Em.Emit("job.done", rt.UserDataValue(j.ud))
 }
 
 func (j *job) wait() {
@@ -107,28 +110,16 @@ func (j *job) getProc() *os.Process {
 	return nil
 }
 
-func (j *job) lua() rt.Value {
-	jobFuncs := map[string]util.LuaExport{
-		"stop": {j.luaStop, 0, false},
-		"start": {j.luaStart, 0, false},
-		"foreground": {j.luaForeground, 0, false},
-		"background": {j.luaBackground, 0, false},
+func luaStartJob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+	if err := c.Check1Arg(); err != nil {
+		return nil, err
 	}
-	luaJob := rt.NewTable()
-	util.SetExports(l, luaJob, jobFuncs)
 
-	luaJob.Set(rt.StringValue("cmd"), rt.StringValue(j.cmd))
-	luaJob.Set(rt.StringValue("running"), rt.BoolValue(j.running))
-	luaJob.Set(rt.StringValue("id"), rt.IntValue(int64(j.id)))
-	luaJob.Set(rt.StringValue("pid"), rt.IntValue(int64(j.pid)))
-	luaJob.Set(rt.StringValue("exitCode"), rt.IntValue(int64(j.exitCode)))
-	luaJob.Set(rt.StringValue("stdout"), rt.StringValue(string(j.stdout.Bytes())))
-	luaJob.Set(rt.StringValue("stderr"), rt.StringValue(string(j.stderr.Bytes())))
+	j, err := jobArg(c, 0)
+	if err != nil {
+		return nil, err
+	}
 
-	return rt.TableValue(luaJob)
-}
-
-func (j *job) luaStart(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 	if !j.running {
 		err := j.start()
 		exit := handleExecErr(err)
@@ -139,7 +130,16 @@ func (j *job) luaStart(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 	return c.Next(), nil
 }
 
-func (j *job) luaStop(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+func luaStopJob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+	if err := c.Check1Arg(); err != nil {
+		return nil, err
+	}
+
+	j, err := jobArg(c, 0)
+	if err != nil {
+		return nil, err
+	}
+
 	if j.running {
 		j.stop()
 		j.finish()
@@ -148,7 +148,16 @@ func (j *job) luaStop(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 	return c.Next(), nil
 }
 
-func (j *job) luaForeground(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+func luaForegroundJob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+	if err := c.Check1Arg(); err != nil {
+		return nil, err
+	}
+
+	j, err := jobArg(c, 0)
+	if err != nil {
+		return nil, err
+	}
+
 	if !j.running {
 		return nil, errors.New("job not running")
 	}
@@ -157,7 +166,7 @@ func (j *job) luaForeground(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 	jobs.foreground = true
 	// this is kinda funny
 	// background continues the process incase it got suspended
-	err := j.background()
+	err = j.background()
 	if err != nil {
 		return nil, err
 	}
@@ -171,12 +180,21 @@ func (j *job) luaForeground(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 	return c.Next(), nil
 }
 
-func (j *job) luaBackground(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+func luaBackgroundJob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+	if err := c.Check1Arg(); err != nil {
+		return nil, err
+	}
+
+	j, err := jobArg(c, 0)
+	if err != nil {
+		return nil, err
+	}
+
 	if !j.running {
 		return nil, errors.New("job not running")
 	}
 
-	err := j.background()
+	err = j.background()
 	if err != nil {
 		return nil, err
 	}
@@ -215,8 +233,10 @@ func (j *jobHandler) add(cmd string, args []string, path string) *job {
 		stdout: &bytes.Buffer{},
 		stderr: &bytes.Buffer{},
 	}
+	jb.ud = jobUserData(jb)
+
 	j.jobs[j.latestID] = jb
-	hooks.Em.Emit("job.add", jb.lua())
+	hooks.Em.Emit("job.add", rt.UserDataValue(jb.ud))
 
 	return jb
 }
@@ -257,6 +277,44 @@ func (j *jobHandler) stopAll() {
 }
 
 func (j *jobHandler) loader(rtm *rt.Runtime) *rt.Table {
+	jobMethods := rt.NewTable()
+	jFuncs := map[string]util.LuaExport{
+		"stop": {luaStopJob, 1, false},
+		"start": {luaStartJob, 1, false},
+		"foreground": {luaForegroundJob, 1, false},
+		"background": {luaBackgroundJob, 1, false},
+	}
+	util.SetExports(l, jobMethods, jFuncs)
+
+	jobMeta := rt.NewTable()
+	jobIndex := func(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+		j, _ := jobArg(c, 0)
+
+		arg := c.Arg(1)
+		val := jobMethods.Get(arg)
+
+		if val != rt.NilValue {
+			return c.PushingNext1(t.Runtime, val), nil
+		}
+
+		keyStr, _ := arg.TryString()
+
+		switch keyStr {
+			case "cmd": val = rt.StringValue(j.cmd)
+			case "running": val = rt.BoolValue(j.running)
+			case "id": val = rt.IntValue(int64(j.id))
+			case "pid": val = rt.IntValue(int64(j.pid))
+			case "exitCode": val = rt.IntValue(int64(j.exitCode))
+			case "stdout": val = rt.StringValue(string(j.stdout.Bytes()))
+			case "stderr": val = rt.StringValue(string(j.stderr.Bytes()))
+		}
+
+		return c.PushingNext1(t.Runtime, val), nil
+	}
+
+	jobMeta.Set(rt.StringValue("__index"), rt.FunctionValue(rt.NewGoFunction(jobIndex, "__index", 2, false)))
+	l.SetRegistry(jobMetaKey, rt.TableValue(jobMeta))
+
 	jobFuncs := map[string]util.LuaExport{
 		"all": {j.luaAllJobs, 0, false},
 		"last": {j.luaLastJob, 0, false},
@@ -271,6 +329,30 @@ func (j *jobHandler) loader(rtm *rt.Runtime) *rt.Table {
 	return luaJob
 }
 
+func jobArg(c *rt.GoCont, arg int) (*job, error) {
+	j, ok := valueToJob(c.Arg(arg))
+	if !ok {
+		return nil, fmt.Errorf("#%d must be a job", arg + 1)
+	}
+
+	return j, nil
+}
+
+func valueToJob(val rt.Value) (*job, bool) {
+	u, ok := val.TryUserData()
+	if !ok {
+		return nil, false
+	}
+
+	j, ok := u.Value().(*job)
+	return j, ok
+}
+
+func jobUserData(j *job) *rt.UserData {
+	jobMeta := l.Registry(jobMetaKey)
+	return rt.NewUserData(j, jobMeta.AsTable())
+}
+
 func (j *jobHandler) luaGetJob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 	j.mu.RLock()
 	defer j.mu.RUnlock()
@@ -288,7 +370,7 @@ func (j *jobHandler) luaGetJob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 		return c.Next(), nil
 	}
 
-	return c.PushingNext1(t.Runtime, job.lua()), nil
+	return c.PushingNext(t.Runtime, rt.UserDataValue(job.ud)), nil
 }
 
 func (j *jobHandler) luaAddJob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
@@ -317,7 +399,7 @@ func (j *jobHandler) luaAddJob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 
 	jb := j.add(cmd, args, execPath)
 
-	return c.PushingNext1(t.Runtime, jb.lua()), nil
+	return c.PushingNext1(t.Runtime, rt.UserDataValue(jb.ud)), nil
 }
 
 func (j *jobHandler) luaAllJobs(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
@@ -326,7 +408,7 @@ func (j *jobHandler) luaAllJobs(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 
 	jobTbl := rt.NewTable()
 	for id, job := range j.jobs {
-		jobTbl.Set(rt.IntValue(int64(id)), job.lua())
+		jobTbl.Set(rt.IntValue(int64(id)), rt.UserDataValue(job.ud))
 	}
 
 	return c.PushingNext1(t.Runtime, rt.TableValue(jobTbl)), nil
@@ -358,5 +440,5 @@ func (j *jobHandler) luaLastJob(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 		return c.Next(), nil
 	}
 
-	return c.PushingNext1(t.Runtime, job.lua()), nil
+	return c.PushingNext1(t.Runtime, rt.UserDataValue(job.ud)), nil
 }

nature/init.lua

@@ -8,6 +8,7 @@ require 'nature.commands'
 require 'nature.completions'
 require 'nature.opts'
 require 'nature.vim'
+require 'nature.runner'
 
 local shlvl = tonumber(os.getenv 'SHLVL')
 if shlvl ~= nil then

nature/runner.lua

@@ -0,0 +1,106 @@
+local currentRunner = 'hybrid'
+local runners = {}
+
+-- lsp shut up
+hilbish = hilbish
+
+--- Get a runner by name.
+--- @param name string
+--- @return table
+function hilbish.runner.get(name)
+	local r = runners[name]
+
+	if not r then
+		error(string.format('runner %s does not exist', name))
+	end
+
+	return r
+end
+
+--- Adds a runner to the table of available runners. If runner is a table,
+--- it must have the run function in it.
+--- @param name string
+--- @param runner function | table
+function hilbish.runner.add(name, runner)
+	if type(name) ~= 'string' then
+		error 'expected runner name to be a table'
+	end
+
+	if type(runner) == 'function' then
+		runner = {run = runner} -- this probably looks confusing
+	end
+
+	if type(runner) ~= 'table' then
+		error 'expected runner to be a table or function'
+	end
+
+	if runners[name] then
+		error(string.format('runner %s already exists', name))
+	end
+
+	hilbish.runner.set(name, runner)
+end
+
+--- Sets a runner by name. The runner table must have the run function in it.
+--- @param name string
+--- @param runner table
+function hilbish.runner.set(name, runner)
+	if not runner.run or type(runner.run) ~= 'function' then
+		error 'run function in runner missing'
+	end
+
+	runners[name] = runner
+end
+
+--- Executes cmd with a runner. If runnerName isn't passed, it uses
+--- the user's current runner.
+--- @param cmd string
+--- @param runnerName string?
+--- @return string, number, string
+function hilbish.runner.exec(cmd, runnerName)
+	if not runnerName then runnerName = currentRunner end
+
+	local r = hilbish.runner.get(runnerName)
+
+	return r.run(cmd)
+end
+
+--- Sets the current interactive/command line runner mode.
+--- @param name string
+function hilbish.runner.setCurrent(name)
+	local r = hilbish.runner.get(name)
+	currentRunner = name
+
+	hilbish.runner.setMode(r.run)
+end
+
+hilbish.runner.add('hybrid', function(input)
+	local cmdStr = hilbish.aliases.resolve(input)
+
+	local _, _, err = hilbish.runner.lua(cmdStr)
+	if not err then
+		return input, 0, nil
+	end
+
+	return hilbish.runner.sh(input)
+end)
+
+hilbish.runner.add('hybridRev', function(input)
+	local _, _, err = hilbish.runner.sh(input)
+	if not err then
+		return input, 0, nil
+	end
+
+	local cmdStr = hilbish.aliases.resolve(input)
+	return hilbish.runner.lua(cmdStr)
+end)
+
+hilbish.runner.add('lua', function(input)
+	local cmdStr = hilbish.aliases.resolve(input)
+	return hilbish.runner.lua(cmdStr)
+end)
+
+hilbish.runner.add('sh', function(input)
+	return hilbish.runner.sh(input)
+end)
+

readline/comp-group.go

@@ -73,6 +73,7 @@ func (g *CompletionGroup) updateTabFind(rl *Instance) {
 
 	// We perform filter right here, so we create a new completion group, and populate it with our results.
 	for i := range g.Suggestions {
+		if rl.regexSearch == nil { continue }
 		if rl.regexSearch.MatchString(g.Suggestions[i]) {
 			suggs = append(suggs, g.Suggestions[i])
 		} else if g.DisplayType == TabDisplayList && rl.regexSearch.MatchString(g.Descriptions[g.Suggestions[i]]) {

readline/tabfind.go

@@ -33,6 +33,7 @@ func (rl *Instance) updateTabFind(r []rune) {
 	var err error
 	rl.regexSearch, err = regexp.Compile("(?i)" + string(rl.tfLine))
 	if err != nil {
+		rl.RefreshPromptLog(err.Error())
 		rl.infoText = []rune(Red("Failed to match search regexp"))
 	}
 

timer.go

@@ -6,8 +6,6 @@ import (
 	"os"
 	"time"
 
-	"hilbish/util"
-	
 	rt "github.com/arnodel/golua/runtime"
 )
 
@@ -25,6 +23,7 @@ type timer struct{
 	fun *rt.Closure
 	th *timerHandler
 	ticker *time.Ticker
+	ud *rt.UserData
 	channel chan struct{}
 }
 
@@ -74,8 +73,17 @@ func (t *timer) stop() error {
 	return nil
 }
 
-func (t *timer) luaStart(thr *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
-	err := t.start()
+func timerStart(thr *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+	if err := c.Check1Arg(); err != nil {
+		return nil, err
+	}
+
+	t, err := timerArg(c, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	err = t.start()
 	if err != nil {
 		return nil, err
 	}
@@ -83,26 +91,20 @@ func (t *timer) luaStart(thr *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 	return c.Next(), nil
 }
 
-func (t *timer) luaStop(thr *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
-	err := t.stop()
+func timerStop(thr *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+	if err := c.Check1Arg(); err != nil {
+		return nil, err
+	}
+
+	t, err := timerArg(c, 0)
 	if err != nil {
 		return nil, err
 	}
-	
+
+	err = t.stop()
+	if err != nil {
+		return nil, err
+	}
+
 	return c.Next(), nil
 }
-
-func (t *timer) lua() rt.Value {
-	tExports := map[string]util.LuaExport{
-		"start": {t.luaStart, 0, false},
-		"stop": {t.luaStop, 0, false},
-	}
-	luaTimer := rt.NewTable()
-	util.SetExports(l, luaTimer, tExports)
-
-	luaTimer.Set(rt.StringValue("type"), rt.IntValue(int64(t.typ)))
-	luaTimer.Set(rt.StringValue("running"), rt.BoolValue(t.running))
-	luaTimer.Set(rt.StringValue("duration"), rt.IntValue(int64(t.dur / time.Millisecond)))
-
-	return rt.TableValue(luaTimer)
-}

timerhandler.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"sync"
 	"time"
 
@@ -10,6 +11,8 @@ import (
 )
 
 var timers *timerHandler
+var timerMetaKey = rt.StringValue("hshtimer")
+
 type timerHandler struct {
 	mu *sync.RWMutex
 	wg *sync.WaitGroup
@@ -44,6 +47,8 @@ func (th *timerHandler) create(typ timerType, dur time.Duration, fun *rt.Closure
 		th: th,
 		id: th.latestID,
 	}
+	t.ud = timerUserData(t)
+
 	th.timers[th.latestID] = t
 	
 	return t
@@ -75,7 +80,7 @@ func (th *timerHandler) luaCreate(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 
 	timerTyp := timerType(timerTypInt)
 	tmr := th.create(timerTyp, time.Duration(ms) * time.Millisecond, cb)
-	return c.PushingNext1(t.Runtime, tmr.lua()), nil
+	return c.PushingNext1(t.Runtime, rt.UserDataValue(tmr.ud)), nil
 }
 
 func (th *timerHandler) luaGet(thr *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
@@ -89,13 +94,45 @@ func (th *timerHandler) luaGet(thr *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 
 	t := th.get(int(id))
 	if t != nil {
-		return c.PushingNext1(thr.Runtime, t.lua()), nil
+		return c.PushingNext1(thr.Runtime, rt.UserDataValue(t.ud)), nil
 	}
 
 	return c.Next(), nil
 }
 
 func (th *timerHandler) loader(rtm *rt.Runtime) *rt.Table {
+	timerMethods := rt.NewTable()
+	timerFuncs := map[string]util.LuaExport{
+		"start": {timerStart, 1, false},
+		"stop": {timerStop, 1, false},
+	}
+	util.SetExports(rtm, timerMethods, timerFuncs)
+
+	timerMeta := rt.NewTable()
+	timerIndex := func(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+		ti, _ := timerArg(c, 0)
+
+		arg := c.Arg(1)
+		val := timerMethods.Get(arg)
+
+		if val != rt.NilValue {
+			return c.PushingNext1(t.Runtime, val), nil
+		}
+
+		keyStr, _ := arg.TryString()
+
+		switch keyStr {
+			case "type": val = rt.IntValue(int64(ti.typ))
+			case "running": val = rt.BoolValue(ti.running)
+			case "duration": val = rt.IntValue(int64(ti.dur / time.Millisecond))
+		}
+
+		return c.PushingNext1(t.Runtime, val), nil
+	}
+
+	timerMeta.Set(rt.StringValue("__index"), rt.FunctionValue(rt.NewGoFunction(timerIndex, "__index", 2, false)))
+	l.SetRegistry(timerMetaKey, rt.TableValue(timerMeta))
+
 	thExports := map[string]util.LuaExport{
 		"create": {th.luaCreate, 3, false},
 		"get": {th.luaGet, 1, false},
@@ -106,3 +143,27 @@ func (th *timerHandler) loader(rtm *rt.Runtime) *rt.Table {
 
 	return luaTh
 }
+
+func timerArg(c *rt.GoCont, arg int) (*timer, error) {
+	j, ok := valueToTimer(c.Arg(arg))
+	if !ok {
+		return nil, fmt.Errorf("#%d must be a timer", arg + 1)
+	}
+
+	return j, nil
+}
+
+func valueToTimer(val rt.Value) (*timer, bool) {
+	u, ok := val.TryUserData()
+	if !ok {
+		return nil, false
+	}
+
+	j, ok := u.Value().(*timer)
+	return j, ok
+}
+
+func timerUserData(j *timer) *rt.UserData {
+	timerMeta := l.Registry(timerMetaKey)
+	return rt.NewUserData(j, timerMeta.AsTable())
+}