I wanted to change string into erlang fun, either on java side or on erlang. I
need it to create MatchSpecs from funs (there is dbg:fun2ms function). I'd like
user to enter fun in text area and then, if it's correct, turn into MatchSpec.
How can I do it?
regards,
Piotrek
----- "Vlad Dumitrescu" <vladd...@gmail.com> wrote:
> On Mon, Aug 16, 2010 at 16:12, Piotr Dorobisz
> <piotr.dorob...@erlang-solutions.com> wrote:
> > Is it possible to change string into erlang fun? Let say I have sth
> like that:
> > fun(X,Y)->X+Y end
> > I'd like to change it into OtpErlangFun and send to erlang node so
> it could be executed there.
>
> After creating the backend, you can do whatever you want with it,
> including call call("module", "fun", args)... The string arguments
> are
> really meant for when they come from the end user, defined in some
> dialogue, but sometimes it's useful to use them as an initialization
> step.
>
> OtpErlangFun can't be used to call anything (except by looking in the
> beam file and guessing the right index). It is only a reference to a
> fun that is already present in Erlang code.
>
> regards,
> Vlad
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