Andrew, the metadata you are seeing is added by the CLJS compiler to the
Clojure objects it creates as it is reading CLJS code. You did not add it
explicitly in your code anywhere, and we're not saying you did.
The problem here is that the metadata did not *stay* in Clojure but got emitted
into the compiled js code.
So what likely happened is that some *Clojure* code (e.g. cljs a macro) emitted
an object constructed by the Compiler, but the metadata on that object was not
stripped out before being emitted as js code.
We need a minimum reproducible case. Here is a possibility to explore:
;;CLJ code
(defmacro macro-identity [x] x)
;; CLJS code
(def do-i-have-extra-metadata? (macro-identity {:foo :bar}))
Then see if the compiled output of do-i-have-extra-metadata? has extra metadata.
If that does not seem to work, look for places in your codebase where some
object is crossing from clojurescript->clojure->clojurescript. Start with
Clojure macros.
On Tuesday, February 3, 2015 at 12:06:11 PM UTC-6, David Nolen wrote:
> You have as much of an idea why this happening as I do.
>
>
> Which is zero :)
>
>
> Without a minimal reproducer there is nothing for anyone to do.
>
>
> You need to sort yourself what line of your ClojureScript or your
> ClojureScript dependencies is generating these maps.
>
>
> Then maybe someone can offer a solution.
>
>
> David
>
>
> On Tue, Feb 3, 2015 at 12:50 PM, Andrew S <hell...@floatingmachine.com> wrote:
> Ok, I'm sorry if I'm missing the train of thought on this, but how
>
> does any ordinary clojure(script) map lead to what you call metadata
>
> leakage that contains paths to files? Of course I use maps all over
>
> the place (doesn't everyone?), but I don't see how this connects to
>
> the problem I'm having.
>
>
>
>
>
> On Tue, Feb 3, 2015 at 6:40 PM, David Nolen <dnolen...@gmail.com> wrote:
>
> > Yes {:foo :bar}
>
> >
>
> > David
>
> >
>
> > On Tue, Feb 3, 2015 at 12:35 PM, Andrew S <hell...@floatingmachine.com>
>
> > wrote:
>
> >>
>
> >> Ok, can you clarify the type of map literal that would do this? I have
>
> >> not written any of my own macros on this app, but perhaps a library I
>
> >> depend on has them. By map literal, do you just mean a {:foo :bar}
>
> >> type of syntax, or something else? I also have not added any metadata
>
> >> myself to anything in the app using the caret or with-meta syntax.
>
> >>
>
> >> On Tue, Feb 3, 2015 at 6:29 PM, David Nolen <dnolen...@gmail.com>
>
> >> wrote:
>
> >> > The problem is metadata leakage. This has nothing to do with specifying
>
> >> > paths in your code. Somewhere you are writing map literals (perhaps in a
>
> >> > macro?) and compiler metadata is leaking.
>
> >> >
>
> >> > David
>
> >> >
>
> >> > On Tue, Feb 3, 2015 at 11:38 AM, Andrew S
>
> >> > <hell...@floatingmachine.com>
>
> >> > wrote:
>
> >> >>
>
> >> >> I can try to produce an example if I know where to start. There is
>
> >> >> nowhere in my app that I am specifying a path to a file, so I'm not
>
> >> >> sure where this is happening.
>
> >> >>
>
> >> >> On Tue, Feb 3, 2015 at 5:37 PM, David Nolen <dnolen...@gmail.com>
>
> >> >> wrote:
>
> >> >> > Looks like metadata leakage. Need a minimal example though.
>
> >> >> >
>
> >> >> > Thanks,
>
> >> >> > David
>
> >> >> >
>
> >> >> > On Tue, Feb 3, 2015 at 10:57 AM, Andrew S
>
> >> >> > <hell...@floatingmachine.com>
>
> >> >> > wrote:
>
> >> >> >>
>
> >> >> >> Grepping over the files created by a :none optimization reveals the
>
> >> >> >> path in places like this:
>
> >> >> >>
>
> >> >> >> cljs.core.PersistentArrayMap(null, 5, [new
>
> >> >> >> cljs.core.Keyword(null,"end-column","end-column",1425389514),55,new
>
> >> >> >> cljs.core.Keyword(null,"end-line","end-line",1837326455),101,new
>
> >> >> >> cljs.core.Keyword(null,"column","column",2078222095),3,new
>
> >> >> >> cljs.core.Keyword(null,"line","line",212345235),96,new
>
> >> >> >>
>
> >> >> >>
>
> >> >> >>
>
> >> >> >> cljs.core.Keyword(null,"file","file",-1269645878),"/Users/andrew/path/to/file.cljs"],
>
> >> >> >> null)));
>
> >> >> >>
>
> >> >> >> Does this shed any light on the cause of this? I have no idea what
>
> >> >> >> this cljs.core.Keyword is doing with a file path.
>
> >> >> >>
>
> >> >> >> On Tue, Feb 3, 2015 at 4:30 PM, Mike Fikes <mikef...@gmail.com>
>
> >> >> >> wrote:
>
> >> >> >> > Try the :pseudo-names compiler option to see what the :advanced
>
> >> >> >> > code
>
> >> >> >> > is
>
> >> >> >> > referring to
>
> >> >> >> >
>
> >> >> >> >
>
> >> >> >> > (https://github.com/clojure/clojurescript/wiki/Compiler-Options#pseudo-names).
>
> >> >> >> >
>
> >> >> >> > --
>
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>
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> >> >> >>
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> >> >> >>
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>
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>
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