On Fri, Mar 12, 2004 at 03:47:57AM -0500, Austin Hastings wrote:
: > -----Original Message-----
: > From: Larry Wall [mailto:[EMAIL PROTECTED]
: > On Thu, Mar 11, 2004 at 11:38:11AM +0000, Andy Wardley wrote:
: > : Larry Wall wrote:
: > : > multi sub *scramble (String $s) returns String {...}
: > : [...]
: > : > Or you can just call it directly as a function:
: > : > scramble("hello")
: > :
: > : Can you also call scramble as a class method?
: > :
: > : class String is extended {
: > : method scramble { ..etc... }
: > : }
: > :
: > : String.scramble("hello")
: >
: > Not unless you write a class method that takes an extra argument.
: > Otherwise you're passing a class where it expects a string, and a
: > string where it expects nothing. However, much like in Perl 5 you
: > can always force which class's method to call with
: >
: > "hello".String::scramble();
:
: But it would work as a "class multi", right?
:
: class String is extended {
: multi scramble(String $s) {...}
: }
You probably have to decide whether that's a multi sub or a multi method,
at least syntactically. Though it may not matter which you pick because...
: "hello".scramble();
: String::scramble("hello"); # Way overspecified for a multi...
For a single argument function, those probably come out to the same thing
in the end. With more arguments you have to start distinguishing single
dispatch from multiple dispatch.
Larry
