Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
prototypes on methods, so that I can do
$obj->do { stuff(@_) }

hey, a man can dream :-)

update: ysth wanted to know what the prototype for my example was. I'll explain.

First, I'll note I posted this originally because the OP made me think of Re: Automatic Loop Counter not in perl. But that may not be clear enough.

So, anyway, one of the things I do quite a lot is pass around code blocks (or anonymous subroutines subroutine references - in perl it's all the same - as, as far as I'm concerned, it should be)

That means I do a lot of stuff like

$object->method(sub { my ($arg) = @_; # stuff });
Which just looks ugly. Especially when compared to
@result = map { insert(@your_code_here) } @input;
or even
sub one_hundred_and_one_times(&) { my $block = shift; $block->() for (0 .. 100); } @result = one_hundred_and_one_times { more($stuff) };
Sadly, that doesn't work for methods, since method calls ignore prototypes.

In other words, I'd just like

$object->method { # code block };
to pass "sub { # code block }" to "$object->method()" if "method" is declared with a "&" prototype.

updated fixed syntax in example.


In reply to Re: what would you like to see in perl5.12? by Joost
in thread what would you like to see in perl5.12? by ysth

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others chanting in the Monastery: (1)
As of 2024-04-16 14:51 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found