[erlang-questions] Erlang4Android

Loïc Hoguin <>
Fri Jan 18 16:50:33 CET 2013


Dialyzer will complain if the function is undefined. It also breaks 
expectations, what's the type going in? Out?

You shouldn't use it.

On 01/18/2013 04:32 PM, Tony Rogvall wrote:
> Wow, this must be abused without hesitation.
>
> Really nice !
>
> /Tony
>
> On 18 jan 2013, at 16:25, Björn Gustavsson <
> <mailto:>> wrote:
>
>>
>>
>>
>> On Tue, Jan 15, 2013 at 1:33 PM, Erik Reitsma <
>> <mailto:>> wrote:
>>
>>     On 01/15/2013 10:41 AM, Joe Armstrong wrote:
>>>     Golly - I read the code - you modified error_handler.erl !!!!
>>>
>>>     So what happens is ...
>>>
>>>        I call android:fooBar(Args) - fooBar is not defined in android.erl
>>>        so it's caught in error_handler and then android:rpc(fooBar,
>>>     [...]) is called
>>>        and this ends up as a Json call to a socket -
>>>
>>     Yes, that is what happens.
>>>
>> It might interest you to know, that in R16, you can have a handler for
>> undefined functions in each module. (We needed that to implement the parse
>> transformation for parameterized modules.)
>>
>> This new feature has just been merged to the master branch:
>>
>> https://github.com/erlang/otp/commit/209a479080214ab901116d48b90e91d6c056278d
>>
>> /Bjorn
>>
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-- 
Loïc Hoguin
Erlang Cowboy
Nine Nines
http://ninenines.eu



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