The ref and at will work unless f. is applied (but, why?)
v1=: 'v' at o
v1
v_11_
v1 20 NB. invoked from different locale
32
If f. is absolutely necessary than consider f. proof verb:
fv=: 2 : '3 : ((m ref n),'' y'')'
'v' fv o
3 : 'v_11_ y'
('v' fv o) f. 20
32
--- Oleg Kobchenko <[EMAIL PROTECTED]> wrote:
> Why would referencing instance members fail?
>
> ref=: 4 : 'x,''_'',(":>y),''_'''
> at=: 2 : '(m ref n)~'
>
> o=. conew 'test'
> ('a' ref o)
> a_11_
>
> ('a' ref o)=: 12
> ('v' ref o)=: 3 : 'a + y'
> ('v' ref o)~ 23
> 35
>
> ('w' ref o)=: 3 : 'a=: a + y'
> ('w' ref o)~ 100
> 112
> ('a' ref o)~
> 112
>
> 'w' at o 2000
> 2112
> 'a' at o
> 2112
>
> 'codestroy' at o ''
> 1
> 'a' at o
> |locale error: at
> | (m ref n)~
>
>
> --- Pascal Jasmin <[EMAIL PROTECTED]> wrote:
>
> > That is very nice solution, and if I had remembered the evoke adverb, I
> > might have settled for
> > it. Raul's solution actually generates a verb, and not the string
> > representation of the
> member.
> > That is preferable because all callees will know how to execute a verb,
> > and won't detroy the
> > reference by evoking it.
> >
> > The other problem is that this technique forces you to write all your class
> > verbs to take the
> > instance variable as a parameter (x), (so that they are f. proof) because
> > evoking the string
> > loses the entire context for the function that you normally have if you
> > called v2__o. The
> verb
> > v2_3_ will always execute correctly, but if the verb references instance
> > variables, then as a
> > string, 'v2_3_'~ will fail.
> >
> >
> > ----- Original Message ----
> > From: Oleg Kobchenko <[EMAIL PROTECTED]>
> > To: Programming forum <[email protected]>
> > Sent: Monday, October 30, 2006 8:00:32 PM
> > Subject: RE: [Jprogramming] passing object functions to other objects
> >
> > Actually if it's just a name generator (like Raul's refname),
> > it can be a dyad, not necessarily a conjunction.
> >
> > ref=: 4 : 'x,''_'',(":>y),''_'''
> >
> > 100 ('v1' ref 'abc')~ ('n1' ref 'abc')~
> > 223
> >
> > Verb allows additional operations
> >
> > ((;:'n2 n3 n4') ref&.> <'abc')=: i.3
> > ((;:'n2 n3 n4') "[EMAIL PROTECTED]&> <'abc')
> > 0 1 2
> >
> >
> > Conjunction is necessary, when a value is deferenced.
> >
> > at=: 2 : '(m,''_'',(":>n),''_'')~'
> >
> > 'n1' at 'abc'
> > 123
> > 100 'v1' at 'abc' 'n1' at 'abc'
> > 223
> >
> > This will not allow assignment, but it conceils
> > the redirection.
> >
> >
> > --- Oleg Kobchenko <[EMAIL PROTECTED]> wrote:
> >
> > > It depends on what class the value of name is:
> > > verbs cannot return verbs. So conjunction is used:
> > >
> > > of=: 2 : 'm,''_'',(":>n),''_'''
> > >
> > > n1_abc_=: 123
> > > v1_abc_=: +
> > >
> > > 'n1' of 'abc'
> > > n1_abc_
> > > ('n1' of 'abc')~
> > > 123
> > >
> > > 'v1' of 'abc'
> > > v1_abc_
> > > ('v1' of 'abc')~
> > > +
> > > 100 ('v1' of 'abc')~ ('n1' of 'abc')~
> > > 223
> > >
> > > o=. conew 'ptest'
> > > ('n2' of o)
> > > n2_1_
> > >
> > > ('n2' of o)=: 456
> > > ('v2' of o)=: -
> > >
> > > ('n2' of o)~ ('v2' of o)~ 400
> > > 56
> > >
> > > ('codestroy' of o)~''
> > > 1
> > > n2_1_
> > > |locale error
> > > | n2_1_
> > >
> > >
> > > --- "Miller, Raul D" <[EMAIL PROTECTED]> wrote:
> > >
> > > > Oleg Kobchenko wrote:
> > > > >What are we trying to achieve here?
> > > > Given a name and a locale, a mechanism to create a reference
> > > > to the named member of that locale which remains valid in an
> > > > arbitrary locale.
> > > > --
> > > > Raul
> > >
> > >
> > >
> > >
> > > ____________________________________________________________________________________
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> >
> >
> >
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> >
> >
> >
> >
> >
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> >
>
>
>
>
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