From: Jeff Wood <jeff.darklight@...>
Date: 2005-10-20T08:52:00+09:00
Subject: Re: Method annotation and anonymous functions

Of course, my use of '->' doesn't take into consideration the
suggestions for new style syntax for blocks ->( a, b ) { ... }

...

You've always done a great job with things, I guess I'm just
suggesting another bit of punctuation that would state ( attribute of
surrounding method ).

j.

On 10/19/05, Jeff Wood <jeff.darklight@gmail.com> wrote:
> Most languages define some token that specifically states method attribute...
> Java uses @... since @ isn't a used char otherwise.
>
> for us ... it would need to be something else ...
>
> and it would simply bind to the function its declared in, just like
> functions bind to the classes they are declared in.
>
> how 'bout
>
> def method1( a, b )
>   ->visibility = true
>   ->returns = int
>   # actually do some work...
>   ...
> end
>
> just thinking out loud... since it would have a new punctuation it
> wouldn't introduce incompatibility.
>
> j.
>
> On 10/19/05, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:
> > Hi,
> >
> > In message "Re: Method annotation and anonymous functions"
> >     on Thu, 20 Oct 2005 03:26:49 +0900, stevetuckner <stevetuckner@usfamily.net> writes:
> >
> > |Anonymous functions:
> > |
> > |x = def (a=1,b=2) { ... }
> > |y = def(a,b=3) begin
> > |    .....
> > |end
> >
> > Probably I will not use "def" for anonymous function, because there
> > are tow major differences in def statement and anonymous def above:
> >
> >   * def statement defines new name for a method, anonymous def does
> >     not define any name.
> >
> >   * besides that, def statement introduces a whole new scope,
> >     anonymous def should be a closure, that allows access to external
> >     local variables.
> >
> > |Annotated functions:
> > |
> > |class A
> > |    def foo(a, b)
> > |    .visibility   :private      # how can this be parsed? (the above
> > |line has no trailing marker to signal it as one expression
> > |    .returns Integer
> > |    begin
> > |        ....
> > |    end
> >
> > This is a too big syntactic incompatibility.
> >
> >                                                         matz.
> >
> >
>
>
> --
> "http://ruby-lang.org -- do you ruby?"
>
> Jeff Wood
>
>


--
"http://ruby-lang.org -- do you ruby?"

Jeff Wood