Re: Aliasing methods in CPAN roles

2009-10-19 Thread Raphael Descamps
Am Freitag, den 16.10.2009, 10:54 +0400 schrieb Richard Hainsworth: Arising out of Freezing Roles is a related question. Suppose I download a module from CPAN with a role I want to use, but it introduces a method that I want that is in conflict with an existing method (say one taken from

r28846 - docs/Perl6/Spec

2009-10-19 Thread pugs-commits
Author: lwall Date: 2009-10-19 19:20:38 +0200 (Mon, 19 Oct 2009) New Revision: 28846 Modified: docs/Perl6/Spec/S12-objects.pod Log: [S12] treat all delegation objects equally including arrays and hashes Modified: docs/Perl6/Spec/S12-objects.pod

Re: Aliasing methods in CPAN roles

2009-10-19 Thread David Green
On 2009-Oct-18, at 3:44 pm, Jon Lang wrote: David Green wrote: I would expect that role Logging { method log(Numeric $x:) {...} } means the invocant is really of type Numeric Logging, without Logging having to do Numeric. On the other hand, I can see that strictly that might not make

Re: Aliasing methods in CPAN roles

2009-10-19 Thread Jon Lang
Raphael Descamps wrote: I personally don't understand why we don't have a exclude and alias operator in Perl 6 but I have not read all the synopses and don't have an overview. I don't think that it's explicitly spelled out anywhere; but the reason is fairly straightforward: exclude and alias

unusual invocants

2009-10-19 Thread Jon Lang
In Aiasing methods in CPAN roles, David Green wrote: Jon Lang wrote: David Green wrote: I would expect that role Logging { method log(Numeric $x:) {...} } means the invocant is really of type Numeric Logging, without Logging having to do Numeric.  On the other hand, I can see that strictly

Re: unusual invocants

2009-10-19 Thread David Green
On 2009-Oct-19, at 5:50 pm, Jon Lang wrote: In Aiasing methods in CPAN roles, David Green wrote: I don't want my special log() method to work only for other types that explicitly do NumLog; I want it to work for any type that directly does Numeric does Logging. But if Logging doesn't do

Re: Aliasing methods in CPAN roles

2009-10-19 Thread Jon Lang
Raphael Descamps wrote: In the original traits paper the aliasing is not deep: to respect the flattening property, the semantic of the role must not change, so aliasing a recursive method will call the original method. It's a known theoretical weakness of the traits paper and freezing roles

Re: unusual invocants

2009-10-19 Thread Jon Lang
David Green wrote: Jon Lang wrote: In Aiasing methods in CPAN roles, David Green wrote: I don't want my special log() method to work only for other types that explicitly do NumLog; I want it to work for any type that directly does Numeric does Logging. But if Logging doesn't do Numeric,