I am no expert on the compiler, but it looks to me like there is a missing
signature for vbargraph defining the four-argument case. There is a
similar restriction with button, checkbox, etc., but vgroup and hgroup have
explicit block-diagram arguments that cannot be "curried out", so to speak.
Maybe the right way to think about it is that "User Interface Elements" are
not Faust functions in the usual sense, but something else? It seems like
it shouldn't be hard to integrate them more completely, but again, I've not
looked at the details. Maybe they're parsed separately somehow...
- Julius
On Sat, May 1, 2021 at 9:56 AM Dario Sanfilippo <sanfilippo.da...@gmail.com>
wrote:
> Thank you for your answers, Oleg and Stéphane.
>
> I was wrong assuming that, at least for run-time cases, inputs could
> always be provided as arguments. If I'm not wrong, that is always possible
> with Faust-implemented functions (non-primitives).
>
> Ciao,
> Dario
>
> On Sat, 1 May 2021 at 18:41, Stéphane Letz <l...@grame.fr> wrote:
>
>>
>>
>> > Le 1 mai 2021 à 18:37, Oleg Nesterov <o...@redhat.com> a écrit :
>> >
>> > Hi Dario,
>> >
>> > I can't answer authoritatively, but nobody else bothered to reply and
>> > I hate the fact this list has a lot of unanswered technical questions.
>> >
>> > Add Stephane.
>> >
>> > On 04/25, Dario Sanfilippo wrote:
>> >>
>> >> Hello, list.
>> >>
>> >> I may be missing something obvious but would you know why
>> >>
>> >> process(x) = x : vbargraph("test", -1, 1);compiles
>> >>
>> >> while
>> >>
>> >> process(x) = vbargraph("test", -1, 1, x);
>> >>
>> >> doesn't?
>> >
>> > Because I think this is literally syntax error.
>> >
>> > See compiler/parser/faustparser.y:701
>> >
>> > vbargraph : VBARGRAPH LPAR uqstring PAR argument
>> PAR argument RPAR
>> >
>> > This means that faust simply can't parse, for example,
>> >
>> > process = 0;
>> > unused = vbargraph("test", 0,0,0);
>> >
>> > Oleg.
>>
>> Yes it it a syntax error, bargraph expects 3 arguments.
>>
>> Stéphane
>>
>> >
>>
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