comment on

Prototypes do nothing on method calls. There is plenty of talk about this in various forums. So they do not affect good users.

If someone tries to call UNIVERSAL::isa(...) with arguments (what use would it be otherwise) they will get the compile time error.

For example, this:

> perl -e 'sub method() { }; main->method(1, 2, 3);'
[download]

works, but this:

> perl -e 'sub method() { }; main::method("main", 1, 2, 3);'
Too many arguments for main::method at -e line 1, near "3)"
Execution of -e aborted due to compilation errors.
[download]

does not.

In reply to Re^2: Good use for prototypes. On methods no less! by polymorpheus
in thread Good use for prototypes. On methods no less! by polymorpheus

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.


Perl Monk, Perl Meditation
	PerlMonks