Beefy Boxes and Bandwidth Generously Provided by pair Networks
"be consistent"
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Typeless programming is great most of the time, but it can be a burning irritation as well. When the variables you are working with are malleable, like scalars, then you really don't care because of DWIM. When these scalars are actually object references, things can go all dark and blurry.
my $bork = Bork->new(); my $x = $bork->bork()->bork();
Quick quiz: What type of thing is $x anyway? What methods can you call on it? One of the great things about C++ and other strongly typed languages is that you have to prepare a holder for the thing you are requesting. It would be a lot more like:
Bork bork = new Bork(); Chef x = bork->bork()->bork();
No ambiguity there. Either you get a 'Chef', or you get a compile-time error.

With the coming Apocalypse, I only hope that there will be some sort of optional type checking mechanism that can backpropagate the request into the function itself, just like wantarray. Here's an idea:
my Bork:$bork = Bork->new(); my Chef:$x = $bork->bork()->bork();
Maybe the bork method would be able to return a number of different things, including a 'Chef', based on some sort of if (wanta('Chef')) { ... } type check.

Sure, you can say name your variables properly according to type, perhaps using the so-called Hungarian notation, but this can get quickly out of hand. You can also check the return types explicitly in some sort of paranoid gesture, but these are run-time errors and not compile time, which is really tough to test in comparison.

Strict type checking, please, but only on request.

In reply to Re: Griping about Typing by tadman
in thread Griping about Typing by Ovid

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 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? | Other CB clients
Other Users?
Others meditating upon the Monastery: (5)
As of 2021-10-18 13:12 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My first memorable Perl project was:







    Results (74 votes). Check out past polls.

    Notices?