[erlang-questions] module_info and code switch
Wed Nov 27 10:07:44 CET 2013
On 26/11/13 21:02, Andreas Stenius wrote:
> 2013/11/26 Fred Youhanaie <fly@REDACTED>
>> Curiously I noticed that as soon as I load a new version of the module,
>> module_info/1 returns the attribute of the currently loaded version rather
>> than the version for the running process!
>> Is this intentional?
> I see that you call the local `module_info/1` function, but the
> implementation of that in your module is simply to forward the call to
> `erlang:get_module_info/2`, so it doesn't matter if you call it on your old
> or new version of the code, it will give the same result in both cases.
> Which will be that of the active version of the module, according to .
Thanks for the explanation.
So, this means that "-Vsn" is not reliable for identifying (introspection) the version of the code executing a function :-(
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