Building on Michal's example, here is a "more minimal example" --
which also "fails" in Clojure:
(ns test
(:require [clojure.core.async :as async]))
(defmacro silly [obj pat1 body1 other]
`(case ~obj
~pat1 ~body1
~other))
(let []
(def out (java.io.StringWriter.))
(defn log [& args]
(doseq [arg args]
(.write out (str arg))
(.write out "\n")))
(async/<!! (async/go
(silly :dog
:dog (log "with-go: woof woof")
(log "with-go: other"))))
(str out))
On Mon, Feb 17, 2014 at 5:14 PM, t x <[email protected]> wrote:
> Hi Michal,
>
> Does this mean:
>
> (a) the reported behavior is normal (and my bug report is invalid) or
>
> (b) this error happens in both cljs + clojure ?
>
> Thanks!
>
> On Mon, Feb 17, 2014 at 4:33 PM, Michał Marczyk
> <[email protected]> wrote:
>> Just to be clear, the above is a version of t x's bug-report modified
>> to use a StringWriter instead of console.log.
>>
>> Cheers,
>> Michał
>>
>>
>> On 18 February 2014 01:25, Michał Marczyk <[email protected]> wrote:
>>> The same thing happens in Clojure:
>>>
>>> (defmacro silly [object pat1 body1 pat2 body2]
>>> `(case (:tag ~object)
>>> ~pat1 ~body1
>>> ~body2))
>>>
>>> (def out (java.io.StringWriter.))
>>>
>>> (defn log [& args]
>>> (doseq [arg args]
>>> (.write out (str arg))
>>> (.write out "\n")))
>>>
>>> (defn init []
>>> (silly {:tag :dog}
>>> :dog (log "without-go: woof woof")
>>> cat (log "without-go: unrecognized"))
>>> (async/go
>>> (silly {:tag :dog}
>>> :dog (log "with-go: woof woof")
>>> cat (log "with-go: unrecognized"))))
>>>
>>> (init)
>>>
>>> (print (str out))
>>> without-go: woof woof
>>> with-go: woof woof
>>> with-go: unrecognized
>>> nil
>>>
>>> Cheers,
>>> Michał
>>>
>>>
>>> On 18 February 2014 01:01, t x <[email protected]> wrote:
>>>> Thanks for verifying!
>>>>
>>>> @tbaldridge: can you enlighten us on if:
>>>>
>>>> * I'm doing something stupid or
>>>> * this is an actual bug in cljs/core.async?
>>>>
>>>> Thanks!
>>>>
>>>> On Mon, Feb 17, 2014 at 2:10 PM, Manuel Paccagnella
>>>> <[email protected]> wrote:
>>>>> Tested on Linux x64, Chromium 31.0.1650.63 and Firefox 26.0. Same
>>>>> behaviour
>>>>> that you have seen. However, I haven't looked at the code yet.
>>>>>
>>>>> Il giorno lunedì 17 febbraio 2014 20:34:22 UTC+1, t x ha scritto:
>>>>>>
>>>>>> Can anyone verify whether this bug is reproducible?
>>>>>>
>>>>>> On Mon, Feb 17, 2014 at 12:28 AM, t x <[email protected]> wrote:
>>>>>> > Hi,
>>>>>> >
>>>>>> > repo: https://github.com/txrev319/bug-report
>>>>>> >
>>>>>> > I have a really weird bug where:
>>>>>> >
>>>>>> > * (my-macro ...) ==> everything works
>>>>>> >
>>>>>> > * (async/go (my-macro ...)) ==> something weird happens
>>>>>> >
>>>>>> >
>>>>>> > A minimal failure case is documented at:
>>>>>> > https://github.com/txrev319/bug-report/blob/master/src/app.cljx
>>>>>> >
>>>>>> > It depends on the macro defined in:
>>>>>> > https://github.com/txrev319/bug-report/blob/master/src/macros.cljx
>>>>>> >
>>>>>> > The bug can be replicated by following the instructions at:
>>>>>> > https://github.com/txrev319/bug-report/blob/master/README.md
>>>>>> >
>>>>>> > I *believe* I have included everything required to replicate the
>>>>>> > bug. If I am missing anything, please let me know.
>>>>>> >
>>>>>> >
>>>>>> > Extra info:
>>>>>> >
>>>>>> > $ lein --version
>>>>>> > Leiningen 2.2.0 on Java 1.7.0_45 Java HotSpot(TM) 64-Bit Server VM
>>>>>> >
>>>>>> > I'm on 64-bit OSX.
>>>>>> >
>>>>>> >
>>>>>> > Thanks!
>>>>>
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