@bensu I’m looking to load another .js that is on the page. I guess I can just use DOM methods

document.createElement() etc

@arohner: can you add it as a foreign lib?

https://github.com/bensu/doo/issues/25

Not really. This is a .js file that other users will load in a normal <script src=“”>, so I’d like to test that behavior

@bensu while you’re here, I’m also seeing 404: /js/cljs_deps.js. I assume that’s something to do with :asset-path, but I’m not sure what value it should be

What libraries should I look at to build a client/server where multiple clients will be displaying a page, and then from a ‘control’ page can tell one of the clients to display a different page? Based off searching I’m thinking maybe sente for communication between client and server?

the js/cljs_deps.js is a harmless warning

I'm trying to figure out how to remove it, but I should document that in the meanwhile

ok, so you are testing a library that expects the user to add scripts

hmm

let me think about it and get back to you. I'm not sure how to do that (and I have to go to bed now)

no worries. thanks

what's the best way to run tests now? I'm using figwheel, can this help somehow?

is sublime text 2 clojurescript support still decent? like, paredit/indentation at least?

@asolovyov: something using doo is probably what you want (lein-doo is a thing :))

@martinklepsch: I made a setup where figwheel runs my tests on reload, will see how it works

don't want to have another process

I'm running Clojurescript repl on Node. Should I be able to require libraries using (:require '[ :as]) ?

I keep getting "Use of undeclared Var" messages and not sure if this is something expected

@aleksander: this is a warning telling you that there’s a var somewhere that hasn’t been declared previously

The problem in that case was (:require instead of (require. I mix it up all the time 😓 Also managed to require one lib in the repl so I now know its possible Thanks for the answer!

@jensontech: error comes from that rethinkdb file I would try again without that dependency.

@aleksander: this may help: https://twitter.com/socksy/status/659509865119903744

@martinklepsch: yeah, probably should still have it printed out somewhere nearby all the time

Is there a way to import one of the XMLHttpRequest "node polyfills" so that I can use ClojureScript libraries like cljs-http? Or should I go with the route of wrapping nodejs http? I've tried simply including them in the {:npm {:dependencies []}} and also (def XMLHttpRequest (node/require "name of polyfill")). In all cases i was still getting ReferenceError: XMLHttpRequest is not defined at [object Object].goog.net.DefaultXmlHttpFactory.createInstance (/Users/aleksander/projects/provider-poller/out/goog /net/xmlhttp.js:176:16)

Greetings. I’m a relative n00b when it comes to packaging and distributing ClojureScript libraries. I’m looking to merge khroma-tests and khroma, without shipping the khroma-tests dependencies when the library gets installed. This is the best way I can think of setting up the project: https://gist.github.com/ricardojmendez/7c196c2813785b05da89 Any comments or improvements?

I don’t want to have the devcards dependency on the main project, since it’s used solely for the tests. Having a separate profile seems like the best way to do that.

@ricardo looks good, I generally use the :dev profile for this stuff

but only because leiningen does include the :dev profile for some tasks automatically

but the general idea of putting it into a profile is good

eg. lein repl will include :dev while lein jar will not

less with-profile calls 😉

Ah, right. In this case it’s best to leave it explicit, since the examples won’t even work on the repl anyway - you need to be running as an extension. Thanks @thheller!

yeah but how do you call cljsbuild?

lein with-profile khroma-tests cljsbuild auto

(renaming from that file examples-> khroma-tests)

yeah with :dev that would just be lein cljsbuild auto

but if you are fine with with-profile that is perfectly fine to use

But then if they load it on a ClojureScript REPL, they’d have namespaces available that wouldn’t actually work.

:dev just is convenient

Indeed. I guess this is very much an edge case.

Thanks for the tip on :dev being included by default on those cases, though, I was wondering what was the rule.

I think most tasks actually have a default profile they include

eg. if you want something only to happen in uberjar put it in the :uberjar profile

Ayup.

Man, I’m such a pack rat. I have a hard time forgoing history for khroma-tests and just plunking the files into khroma… but the alternative is merging it with the parallel history up until now. That’ll result in an ugly commit tree.

hehe I just force push over those thoughts ... no time for regrets 😉

😛

is (volatile! nil) a js var? Or what’s the fastest mutable reference in cljs?

@denik atoms are pretty fast, fundamentally you’re just setting a field

does cljs.js have a different way to enable/disable warnings from the normal compiler options (https://github.com/clojure/clojurescript/wiki/Compiler-Options#warnings)? adding :warnings {:undeclared-var false} to the options I pass to cljs.js/compile-str seems to have no effect.

@dnolen faster than volatile?

volatile is a Clojure thing, it just means no locking semantics

what is it in cljs

but we don’t have locks in ClojureScript anyway

b/c it’s implemented

volatile is just a box like atom

it’s there only for interop

no perf semantics worth talking about

so I thought, so they’re synonymous?

@mhuebert: might just be a bug

so single item array vs atom/volatile - which one is faster

@denik not synonymous

@denik questions like that don’t really make much sense

atoms can have watches, volatiles not (I think)

why not?

because JS engines variance is significant here

if you’re really interested in what’s the fastest thing you can change

loop bindings

ah great, thanks!!

@dnolen ok, thanks I will make a simple example.

is this comparison accurate about clojurescript?

source: https://youtu.be/n1GgVWOThhY?t=12m52s

not sure how javascript interop is complicated in clojurescript @mike … I also think they are neglecting things like figwheel in their tooling comparison and hyper-focusing on IDEs

@tyler: what about safety? let's say I want to refactor my clojurescript code, how would it be easier than doing so in javascript?

Type safety is definitely a limitation in clojurescript. The question is whether it provides you with any objective benefits in practice.

@mike: From my point of view, Scala.js code is safer while Clojurescript one is much more concise. Tried Scala.js too a while ago

@malch concise in what way? is scala.js too busy/verbose?

what about elm? that is nice code

what about elm? how is it compared to clojurescript?

@mike You can compare it yourself https://github.com/ochrons/scalajs-spa-tutorial/blob/master/client/src/main/scala/spatutorial/client/components/Bootstrap.scala - Scala.js

https://github.com/Day8/re-frame/blob/master/examples/todomvc/src/todomvc/views.cljs - cljs

Never really tried elm, but heard great things about it

But you can reimplement Elm in clojurescript (to a point, of course)

Elm is type safe also (written in Haskell)

what do you mean by reimplementing elm? is it a language, or a library?

Like core.async was inspired by Go’s channels

@mike: https://github.com/Day8/re-frame#guiding-philosophy

@mike that grid is ridiculous

ClojureScript has IDE integration, and JS interop is first class

and the grid is of course missing more important things like maturity, adoption, deployments etc.

what IDE integration?

but that’s why you make grids

to pretend your thing is better

I found one for intellij, but it says it will not be free.

Cursive isn’t free but that’s a different dimension beyond IDE or not

people don’t really blink when IDE == commercial

as far as simple / fancy text editor integration, these things exist

@mike: I’m using CIDER (Emacs) for cljs programming. I’m probably one of the few, who tried Cursive, but came back 😄

the worst part of the grid to my mind is that Scala.js gets green for 'Very good' interop; the same colour as ES6

to be clear Scala.js is super cool. That grid is not.

@malch: this is cool as well https://github.com/jamesmacaulay/zelkova

Right, knew about this one for a while, didn’t have time to try it though. @richiardiandrea Thank you for reminding 😊

it is in my queue as well

that grid is FUD. Tooling for cljs is awesome.

oh, and Types alone != tooling

@mike That’s exactly the point I was making: https://github.com/jamesmacaulay/zelkova

And well, even by their own rules we have Cursive so Cljs should be at least yellow there.

and why did they leave out Elm? Elm could be green on all those columns too.

maybe they only wanted Scalajs to have all greens.

@malch: what's the link between zelkova and that grid?

anyway, I’ll wave that as just FUD.

what's the IDE for elm?

why do you need an IDE? What does that have to do with anything?

tooling is not an IDE

@mike: Not the grid specifically, zelkova is an implementation of Elm ideas in cljs

if they had a column that said “IDE”, then okay, I would agree Elm might not fit in that column. But it says “TOOLABLE"

Hm, yeah, that's a point, it's "toolable" so tha ability to build tools around that

@malch: I don't know anything about elm, what are these elm ideas?

a big part of Elm is the Elm Architecture. which is implemented in CLJS with zelkova and re-frame.

and in Reactjs with re-dux.

here https://github.com/evancz/elm-architecture-tutorial/

I suppose Elm wouldn't get green on JS interop, because I don't think Elm can manipulate JS objects directly. But then again I don't get why Clojurescript has bad JS interop

In that grid

this might not be accurate, I'm just trying to have the big picture, please correct me: om ~ (react + falcor) (reagent + (re-frame or zelkova)) (react + redux) elm

If anything it should be easier than in Scala, since you don't have to type it

I believe you can modify JS objects in Elm via ports

@mike: at least that's how I understand it as well

@mike more or less though Om is now venturing into innovations over Relay / Falcor

@dnolen: but it still has react for the view part?

@mike for rendering on Web/iOS/Android yes

but many React idioms don’t really apply since we use React as rendering

not as application architecture

Hm. I’m trying to write a (greasemonkey-style) userscript with clojurescript. This requires a specific comment block. I used the instructions from here: https://groups.google.com/forum/?fromgroups=#!topic/clojurescript/_qViDrdu30U However, with :advanced the comment block is removed. :whitespace keeps it. Isn’t @preserve supposed to preserve it?

I'm trying to set up a new clojurescript project from a lein template. I'd like to use something akin to Chestnut but more up-to-date, and include om-bootstrap and devcards. I've tried setting this up myself hodge-podging from the Chestnut and devcards templates, and so far it's a big bag of fail. Any suggestions?

@kevinmershon: unless you need to do some backend stuff, you could just go straight figwheel

@halcyon: I do need to do a backend, yes.

who doesn't need backend?

I was reading up on Chestnut's issues on GitHub, and apparently the dependencies are pretty outdated, and the method in which you load up the repl is redundant ever since figwheel incorporated its own repl. I'd rather do without those redundancies, but I like the project structure Chestnut provides

is chesnut for om next?

Chestnut is just a template to start off a basic clojurescript project with a backend based in ring

why doesn't om come with an official template?

@mike I suppose I might have meant if you don’t need to write a clojure backend. Although there are plenty of SPAs that don’t require a backend

I need to write a Clojure backend.

@halcyon: I see.

it introduced itself as: Application template for ClojureScript/Om with live reloading.

@mike: http://jackschaedler.github.io/goya/

@lvh I don’t know if @preserve is still a thing, I recall that maybe going away?

That would certainly explain it. https://developers.google.com/closure/compiler/docs/js-for-compiler#tag-license still suggests it’s a thing, though.

(@license also doesn’t work)

@mike just not interested in maintaining templates.

@lvh I don’t know how up-to-date those pages are

I just follow along on the mailing list

I’ll try /**!, /*!; the issue tracker suggests the team hasn’t done that yet; but I don’t know how up-to-date the issue tracker is.

Gotcha. Thanks, @dnolen!

Are folks using 0.5.0-SNAPSHOT without problems? Wanting to push a release.

@dnolen: Last updated July 22, 2015.

I guess what I'm looking for is: figwheel (with om), compojure, and devcards all in one lein template

kevinmershon: that’d be nice, but FWIW I’ve stopped wanting that as much after setting it up once or twice. It’s just not that hard

Also I am pretty happy about those folks working on making the projects better rather than having to maintain templates 😉

@kevinmershon: things are still newish and these things require a base of knowledge, an automatic template would just get you standing on the end of a plank

Yeah, I'm clunking around with my project config trying to make it all work together.

bhauman++

setting up figwheel a few times was very instructive

bhauman: I’m working on getting devcards into all the things, FWIW

so good

@lvh that makes me happy

It's criminal that I haven't used Om.next and started devcard tooling for it

bhauman: It helps make it easier to demonstrate how to use things; I hope that in the long run this will make us better at helping junior folks.

@lvh: yeah would love to hear some longer term stories around how its working

I’m working on hiring more junior people so I’ll let you know

:)_

man to be a junior dev exploring ClojureScript for my job, such a cool experience, you are going to ruin them for all other dev setups

Speaking of which I think I'm getting tired of hearing that people should "learn ClojureScript in order to learn some new ideas to bring back to their JavaScript environment". ClojureScript is first class and better programming language period. This is no longer a "what floats your boat" situation.

@bhauman couldn’t agree more

I’m gonna go drive a Lotus Elise so I can bring back some new ideas to driving my Ford Fiesta

@halcyon: I love it

gonna use that

now I want a Lotus Elise and a job that let me write cljs

https://twitter.com/cfelde/status/664161265317781504

oh nice!

going where no ClojureScript has gone before

Oh, wait, I think I might know why this isn’t working. I’m adding the javascript as a :foreign-lib; those aren’t supposed to be affected by advanced compilation at all

so I guess something else is stripping comments...

@dnolen: thats sick

@bhauman: on what venn diagram does figwheel meet Office

I'm sure someone will create a lib using a xls sheet as a datastore

Apparently it works with just Closure, so there’s something about Clojurescript’s handling of foreign-libs, apparently… https://closure-compiler.appspot.com/home#code%3D%252F%252F%2520%253D%253DClosureCompiler%253D%253D%250A%252F%252F%2520%2540compilation_level%2520ADVANCED_OPTIMIZATIONS%250A%252F%252F%2520%2540output_file_name%2520default.js%250A%252F%252F%2520%253D%253D%252FClosureCompiler%253D%253D%250A%252F**%250A%2520*%2520%2540fileoverview%250A%2520*%2520This%2520file%2520contains%2520nothing%2520but%2520a%2520comment%2520block%2520which%2520is%2520to%2520be%2520preserved%250A%2520*%2520by%2520the%2520google%2520closure%2520compiler.%2520This%2520comment%2520block%2520contains%2520a%2520comment%250A%2520*%2520block%2520which%2520is%2520necessary%2520to%2520be%2520in%2520the%2520output%2520of%2520the%2520compiled%2520javascript%250A%2520*%2520even%2520in%2520advanced%2520compilation%2520mode.%250A%2520*%252F%250A%252F**%250A%2520*%2520%2540preserve%250A%252F%252F%2520%253D%253DUserScript%253D%253D%250A%252F%252F%2520%2540description%2520xyzzy%250A%252F%252F%2520%2540name%2520crunch%250A%252F%252F%2520%253D%253D%252FUserScript%253D%253D%250A%2520*%252F

That’s a very big URL 😕

xls sheet, as in ATM machine

Huh, that's kinda scary. I don't even remember when was the last time I even used Office or something like that.

@colin.yates: like a new moon

Is js(-inline)-comment a thing end-users are supposed to use ?

@lvh: not really

it’s there for doing type annotations which isn’t really fully supported yet

It doesn’t seem to emit JS comments if I call it from Clojurescript code at least; so I’m guessing I stumbled on some internals.

Aha.

so no you should not be using it

dnolen: Are there any other ways to get a comment to show up in the resulting source code besides :foreign-libs + @preserve?

no

not beyond :preamble

I didn’t know about :preamble. Thanks!

Good times when people don’t remember good old :preamble

@martinklepsch: ha!

Is Object by itself (not js/Object) supposed to be valid syntax in ClojureScript?

@stuartsierra: hrm it’s just never been the case

that’s only supported for deftype defrecord reify specify etc.

OK, but it is valid in deftype/defrecord/reify/etc.?

yes

js/Object might be a problem there, I never tried that myself

shouldn't it be object lower-case?

it depends

(extend-type object …)

vs.

Just updated all the deps for the flappy bird code. The code still works flawlessly and appears to be quicker. https://github.com/bhauman/flappy-bird-demo/commit/6a5e301a64db040486aa43369e609aac805d108c

(deftype Foo [] Object (toString [this] …))

for an older project that was very cool

@bhauman: nice though it better still work!

while tooling woes have been more frequent than I’d like

old code should work!

not just cljs: sablono, react, core.async ... all of it works flawlessly and more than likely better

the magic of transpiling

(defmacro reporting-failing-actions [& body]
     `(let [old-report-fn# ~'clojure.test/report] ; CLJC
        (binding [clojure.test/report #(do (old-report-fn# %) ; CLJC
                                           (report-failing-actions %))]
          ~@body)))

I thought I could def the report fn with reader conditionals but then I’m not sure how I’d properly unwind that inside the macro.

@martinklepsch: conditional reading just doesn’t cover macros

@bhauman: triggered by your tweet: so far haven't found any problems with 0.5.0, been using it for development every day since thursday. There is only one weird thing with cider and repl-api/cljs-repl, but I'm really unsure what's that, maybe my emacs setup or something... And including piggieback makes cider unable to connect to nrepl, but I'm pretty sure that's not figwheel's problem.

@bhauman: it’s working pretty well for me, it’s my primary mode of working on Om Next along with Node.js REPL + cljs.test

testing is one of ClojureScript’s killer apps for me now 😛

I made tests run in browser on every figwheel's reload, and (because we don't have many yet) that's quite nice to get feedback

@bhauman: also, I've reported before 0.5.0 that .cljc reloading is broken in figwheel for me - that is fixed

@asolovyov: great!

@dnolen: really good to hear!

okay, I’m still stumped by something I see other people are dealing with in the context of upgrading to 1.7.170, seeing Exception in thread "main" java.lang.AssertionError: No ns form found in <snip>/src/deps.cljs

this is in a separate project I’m including in my cljsbuild :source-paths. I have upgraded to lein-cljsbuild 1.1.1

when I leave that src path out, the problem disappears (of course)

wondering how to debug this, not even sure why it’s happening

@ddellacosta: this is because you have a deps.cljs file in your source tree

I see, so that’s a no-no in any case then?

I guess I have to figure out how to make that work correctly

@dnolen, so I guess I should flip the question: how can I include a separate project in the cljsbuild source-paths so I don’t have to constantly delete my built CLJS files, run lein install on that project, etc. during development, if I have a deps.cljs file in the source path (for that project)?

is that not possible now?

Just makes sure it's on classpath not source path

@ddellacosta: I have often just added a path to the other project in my source-paths :source-paths ["src" "../my-other-project/src"]

@dnolen, I see—and in that case cljsbuild will pick up the changes? @bhauman yeah, that’s exactly how I’m doing this—the problem I guess is that there is a deps.cljs in that separate project’s source path

didn’t realize that was verboten

@ddellacosta: gotcha

makes sense

I am amazed it ever worked

I see

if there’s a better way to be able to include separate projects in the source path so that you don’t have to jump through hoops during development, I’d love to hear it

we just tried it randomly one day to see if it works, and it did, so we kept doing it

otherwise the pain of writing code, installing it, cleaning and recompiling from scratch was too much

especially if what you wrote the first time was not working…a nightmare

@ddellacosta: https://github.com/technomancy/leiningen/blob/master/doc/TUTORIAL.md#checkout-dependencies

should that work for lein cljsbuild? I hasn’t for us in my experience, but I’ll try it again and see

It’s worked for me.

@exupero and you don’t have to add the checkout dependencies explicitly to your main project’s cljsbuild config?

No, just the project-level list of dependencies.

okay, let me try that again and see if it works

@dnolen @exupero yeah, so, as I suspected this is just the same thing all over again just with checkouts:

Exception in thread "main" java.lang.AssertionError: No ns form found in <snip>checkouts/<snip>/src/deps.cljs, compiling:(/private/var/folders/yb/qrynr_s51rvd7l9x3fqqtrfr0000gn/T/form-init4629892169254164810.clj:1:125)

this is a real step backward for development in our large project, unfortunately—back ye old clean, re-install separate project, re-build from scratch flow.

right I don’t know if cljsbuild knows anything about checkouts

if we are not doing this the right way, would love to know—would be happy to tweak this, just not sure what else to do

I would just move deps.cljs and be done with it

i.e. put it in standard places

resources/deps.cljs

then checkouts should work for you or whatever really

ah, I see—that is the magic bit I didn’t realize. Will happily move to resources/deps.cljs, thanks @dnolen

@dnolen would it be good for me to add that that is the standard location for that here? https://github.com/clojure/clojurescript/wiki/Dependencies

I certainly wasn’t aware, maybe should have been

@dnolen: I’m not sure what that tells me. Can you give me a pointer how to get this working? Tried multiple things but none worked. 😕

@martinklepsch: write the macro twice or once and require it into the expected places

@dnolen: should this work?

/**
 * Given a cljs symbol, strip the namespace part.
 */
cljs_browser_repl.views.utils.strip_namespace = (function cljs_browser_repl$views$utils$strip_namespace(sym){
return clojure.string.join.call(null,cljs.core.drop_while.call(null,(function (p1__24688_SHARP_){
return cljs.core.re_find.call(null,/\./,p1__24688_SHARP_);
}),clojure.string.split.call(null,[cljs.core.str(sym)].join(''),/\\//,(2))));
});

(defn strip-namespace
  "Given a cljs symbol, strip the namespace part."
  [sym]
  (string/join (drop-while #(re-find #"\." %) (string/split (str sym) #"\/" 2 ) ) ) )

gives a SyntaxError: expected expression, got ','

@richiardiandrea: I have no idea what I’m looking at

in plain english please

ok 😄

I defined a function with a regex, and when this function is compiled to js, it gives me a SyntaxError: expected expression, got ','

right still no idea what the problem is

The regex is #"\." converted to /\./ what am I doing wrong?

so I don’t know whether it should work or not

it is a regex literal...

I always forget the quoting rules and I don’t have time at the moment to load that in

oki

somebody else will have to chime in

In Clojure (JVM) the \ character is special inside a Regex literal.

I am escaping the dot (I want to match it exactly)

I will try in the jvm

So the string "\\." contains one literal backslash and a dot. The regex #"\." should match one literal dot.

yes

I don't know if ClojureScript matches this behavior.

@kevinmershon: A more up to date alternative to the Chestnut template? I just use the Reagent template, which is much better. Ripping out the Reagent bits and replacing them with Om takes a minute or so.

I went here: https://regex101.com/#javascript and the /\./ definitely works in Javascript...

weird

@tord I ended up restarting from figwheel after a convincing conversation with @bhauman and @halcyon

(re-find #"\." "this.is.a.thing") works in ClojureScript (Figwheel REPL) for me.

I'm currently geeking out on how accessible this community is.

@richiardiandrea: you should also in general qualify your environment or everyone is going to get confused

I believe this is in a bootstrapped context?

no no, it is in a cljs app this one

you're right

right that just changes all assumptions

and very few people are going to be able to give you a straight answer

myself included

but yes if it works in ClojureScript JVM but not ClojureScript JS it can be assumed to be a bug

and then just report it in JIRA and someone will get around to it eventually or you can take it yourself

works for @stuartsierra in the REPL so I need more investigation 😄

ok tnx and sorry for the noise

What libraries should I look at to build a client/server where multiple clients will be displaying a page, and then from a ‘control’ page can tell one of the clients to display a different page? Based off searching I’m thinking maybe sente for communication between client and server?

@richiardiandrea: It might not be the #”\.” regex, but the second one: (string/split (str sym) #"\/" 2 ) /\\// is not a valid expression

/\\// being the resulting JS regex

oh

That's it. (re-seq #"\/" "this/is/a/thing") => #object[SyntaxError SyntaxError: Unexpected token ,]

should work as /\// in javascript right?

Correct me if I’m wrong (no repl at the moment), but in cljs it should just be #”/“and it will be escaped correctly

(re-seq #"/" "this/is/a/thing") => ("/" "/" "/")

it is converted by the compiler probably

The / is not a special character in Clojure(Script) regex syntax #"", so it should not be escaped.

I don't know why that particular error results.

ah

because just /// is not a JavaScript regex I assumed I needed to escape

how do I print compilation time warning from my macro?

println outputs it to compiled js output

No thoughts on libraries to pick from? Just trying to figure out where to start. 😛

@darwin: There is a function debug-prn in cljs.util. That might help.

@mocker sente could work yes

I haven’t used it myself so I can’t say much more about it

@maria: helped, thanks

@dnolen: The use case is basically: Bunch of TVs displaying dash boards, I want to have a page that can control what each TV is looking at.

@ddellacosta: sorry I missed your last comment earlier. Sure I would add a recommendation. resources isn’t really a standard location it just on the classpath without being in your sources path.

@ddellacosta: in the wiki I would say “one possible location is …"

no worries. Yeah, that makes sense—will add, and maybe note your point re: why resources vs. elsewhere

Which seems like it shouldn’t be too hard, but not sure about most efficient way to design. Something controlling iframe that has the dashboard maybe?

@mocker: if you’re using sente don’t see why you need to bother - WebSockets should cover you, you can broadcast to the other clients

(assuming your dashboards & control panel are all web based clients)

Dashboards are web based, but already exist. So this would be wrapping around to control them.

@mocker Using cljs to change which URL each iframe points to?

@kevinmershon: Kinda what I was thinking.

That'll work so long as you don't need to manipulate the contents of the frame

If you do, I'd suggest building a browser plugin so you can get elevated privileges in the browser

@kevinmershon: No other way to display external page besides iframe though, rigth?

That depends... If it's just html you could load it in and inject it into your cljs app using ajax. But if it has JavaScript and styles you're going to lose all that

@kevinmershon: Ok, you’ve given me some things to think about.

Thanks everyone.

now I would like to know and print macro call-site location, (meta &form) is nil in my case, any ideas?

I want to print compile-time warning including file location:

(defmacro my-fn [& args]
  (binding [*out* *err*]
    (println (pr-str (meta &form)))))

@darwin you might have to experiment a bit here, not sure why you wouldn’t get line col information

I thought it is because my macro is expanded as a result of another macro expansion, but that is not the case, even top-level macro does not get meta info

investigating...

@darwin yeah it could easily be a bug

and perhaps why source mapping gets weird around macros

tried to test it under Clojure 1.7.0 and 1.8.0-RC1 and several clojurescript versions, but without luck

will leave it as a possible future improvement