(I wanted to put this discussion into a separate post, think it will stir much controversy)
> argument signatures are lengthy in Perl
With the same technique like demonstrated in yield() one could simulate a syntac sugar function sig(), which would assign arguments from the upper caller sig( my($a,$b) ). sig could easily handle a lot more like:
- setting default values,
- check of obligatory parameters,
- handling named parameters,
- checking types
- automatic creation of API documentation.
- allowing docstrings
But the need to declare each variable to be lexical is cumbersome, who really wants to constantly repeat my ?
sub test {
sig my $x='default', my $y, named => my $named, OPT;
... code ...
}
so having a new keyword or syntax would facilitate things a lot
something like
sub test {
mine $x='default', $y, named => $named, @OPT;
...
}
or even better
sub test {
| $x='default', $y, named => $named, @OPT |;
...
}
while I'm not sure if it's possible to use | w/o dangerous ambiguity.
Cheers Rolf
( addicted to the Perl Programming Language)
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.