Re: Thoughts on the magicality of @_ and $

In answer to your first question, yes, named intermediate variables are in fact alises to the list elements (which means you need to watch for modifying constants).

Second question. Yes, Perl 6 gets named parameters, and the ability to truly parse subs as builtins (except perhaps the current print FILEHANDLE LIST semantics). Check out the Apocylypses.

Cheers,
Erik

Light a man a fire, he's warm for a day. Catch a man on fire, and he's warm for the rest of his life. - Terry Pratchet

Update: Alright, my question doesn't quite answer your second question. I'm sorry, I got confused on what you meant by "pass by name". :-( I just sent a message asking for clarification to the Perl 6 language group.

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Re: Re: Thoughts on the magicality of @_ and $_ by Juerd (Abbot) on Jun 28, 2002 at 19:39 UTC
Yes, Perl 6 gets named parameters, and the ability to truly parse subs as builtins (except perhaps the current print FILEHANDLE LIST semantics). `print FILEHANDLE LIST` will be gone. `FILEHANDLE.print(LIST)` (or `print FILEHANDLE : LIST`) is the new syntax, as filehandles are objects. IFF I understand correctly. - Yes, I reinvent wheels. - Spam: Visit eurotraQ.	[reply] [d/l] [select]
Re: Re: Re: Thoughts on the magicality of @_ and $_ by erikharrison (Deacon) on Jun 28, 2002 at 20:26 UTC
We use a space where a comma is expected to disambiguate between several (slightly obscure) constructs. For example, indirect object notation. Of course, this is totally supportable with the lexical parsing rules changes (yum). However, the language doesn't seem to directly support user defined methods using this trick themselves. Cheers, Erik Light a man a fire, he's warm for a day. Catch a man on fire, and he's warm for the rest of his life. - Terry Pratchet	[reply]


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Re: Thoughts on the magicality of @_ and $_