[erlang-questions] Finding a way to get function name from local function reference
Thu Jan 22 10:19:03 CET 2009
Then... <phew!> I am pleased to have helped :)
Coming from Java I too was used to a large measure of reflection
support. I think that perhaps it's inherent in the compilation/bytecode
of erlang that there's limits on this. e.g. to get full debugging info
in erlang you must have a compiler switch set that saves abstract code
with the Beam format.
For most purposes this "limitation" will be of no conseqence, of course,
and I actually view this as an advantage, since it means that there is
greater commercial protection for redistributed, compiled code (You can
even protect the abstract code you save in the beam (the compile:file
This, of course, is one rather small advantage amongst a veritable
universe of advantages that Erlang has over Java et al.
Sergey S wrote:
>> Yes. I *completely* misread and misunderstood the question <redface>.
> Hm... Your suggestion was helpful to me. I've rewritten the module for
> testing out performace of fuctions using apply as you suggested.
> Sources of the module itself and sample.erl illustrating how to use it
> can be found here: http://gist.github.com/50240
> bm:funs/4 takes module name, list of function names (or name prefix
> which all functions to test begin with), arguments to pass and number
> of iterates. Then it tests them and fine prints sorted results:
> 1> sample:bm().
> decompress_2..........1130 (1134) ms.
> decompress_1..........1500 (1531) ms.
> decompress_3..........1530 (1525) ms.
> Of cource, it would be much better to have the possibility of using
> function references, but it looks like there is no way to get the
> names of them at runtime (in the general case).
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