On Fri, Feb 02, 2007 at 08:14:53PM +0100, Dr.Ruud wrote:
: I would expect
: 
:   %hash.exists{$key}
: 

Except $foo.bar{$key} is interpreted as $foo.bar().{$key}.  Things like
"exists" and "delete" need to evaluate the key before calling the method
in question, not after.

: with the shortcut
: 
:   %hash.:{$key}
: 
: to test (at run-time) for existance of the element, and expect
: 
:   %hash.:exists
: 
: to test (at compile time if possible) for the validity of 'exists', more
: like
: 
:   %hash.can('exists');
: 
:   %hash.has('exists');
: 
:   %hash.does('exists');

Why would you expect colon to do that?  I don't see the prior art...

Larry

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