Using references from the shell?
Wed Aug 20 16:14:31 CEST 2003
I dont think you can create a reference manually. But if you want to see the
contents of a reference, you can do term_to_binary(Ref) to see what it
Erlang (BEAM) emulator version 5.2 [threads:0]
Eshell V5.2 (abort with ^G)
2> io:format("~p~n", [v(-1)]).
> -----Original Message-----
> From: Massimo Cesaro [mailto:]
> Sent: 20 August 2003 08:09
> Subject: Using references from the shell?
> this is my first post on this list, but we studying/learning/using
> Erlang since June.
> We are developing a softswitch application using Erlang and OTP and me
> and my team are really amazed of what we can accomplish using this
> wonderful middleware in record time.
> Several of modules in the application have functions taking references
> (created with make_ref()) as parameters. I'd like to test those
> functions manually, using the Erlang shell, but the shell parser balks
> when I try to input a reference by hand. I.e.
> 153> otr:connect(Source, Dest, #Ref<0.0.0.4363>, bridge).
> ** 1: syntax error before: Ref **
> I tried several variations on the theme, with the same result.
> In this case, the reference value I'm using was generated
> internally by
> another module (using make_ref()), and stored in an ets
> table. I should
> check for reference value equality.
> I understand that what I see in the shell is just a
> "rendering" of the
> real reference (I read a former thread in this list about the real
> format of references, courtesy of Rickard Green).
> The question is, can I handle references from the shell, or am I
> supposed to write a test module and pass references as opaque values?
> Massimo Cesaro - Eidetix
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