From @peschwa

Consider the following snippet​:

23​:28 < psch> m​: role Bar​::Foo { }; class A { submethod BUILD { self does Bar​::Foo } }; A.new.WHAT.say
23​:28 <+camelia> rakudo-moar 617bb4​: OUTPUT«(Foo})␤»

Clearly, A is not of type 'Foo}'. As far as I can tell Perl6​::Metamodel​::Naming is involved, although I'm not sure why this only happens with mixins during BUILD. I'd expect .WHAT to report 'A+{Bar​::Foo}' instead.

From @jnthn

On Sun Apr 17 16​:34​:02 2016, peschwa@​gmail.com wrote​:

Consider the following snippet​:

23​:28 < psch> m​: role Bar​::Foo { }; class A { submethod BUILD { self
does Bar​::Foo } }; A.new.WHAT.say
23​:28 <+camelia> rakudo-moar 617bb4​: OUTPUT«(Foo})␤»

Clearly, A is not of type 'Foo}'. As far as I can tell
Perl6​::Metamodel​::Naming is involved, although I'm not sure why this
only happens with mixins during BUILD. I'd expect .WHAT to report
'A+{Bar​::Foo}' instead.

Nothing to do build BUILD. It golfs to​:

role Foo​::Bar { }; say (42 but Foo​::Bar).^shortname

And it'll be because of this overly-naive code​:

https://github.com/rakudo/rakudo/blob/nom/src/Perl6/Metamodel/Naming.nqp#L6

Maybe set_name should take an optional second parameter for the short name, and the mixin code can set it explicitly.

/jnthn

The RT System itself - Status changed from 'new' to 'open'

From @peschwa

On Wed Apr 20 02​:54​:29 2016, jnthn@​jnthn.net wrote​:

On Sun Apr 17 16​:34​:02 2016, peschwa@​gmail.com wrote​:

Consider the following snippet​:

23​:28 < psch> m​: role Bar​::Foo { }; class A { submethod BUILD { self
does Bar​::Foo } }; A.new.WHAT.say
23​:28 <+camelia> rakudo-moar 617bb4​: OUTPUT«(Foo})␤»

Clearly, A is not of type 'Foo}'. As far as I can tell
Perl6​::Metamodel​::Naming is involved, although I'm not sure why this
only happens with mixins during BUILD. I'd expect .WHAT to report
'A+{Bar​::Foo}' instead.

Nothing to do build BUILD. It golfs to​:

role Foo​::Bar { }; say (42 but Foo​::Bar).^shortname

And it'll be because of this overly-naive code​:

https://github.com/rakudo/rakudo/blob/nom/src/Perl6/Metamodel/Naming.nqp#L6

Maybe set_name should take an optional second parameter for the short
name, and the mixin code can set it explicitly.

/jnthn

Fixed in Rakudo commit 60550d15, test added in roast commit 95a5c18.

From @usev6

On Sun Apr 24 03​:51​:25 2016, peschwa@​gmail.com wrote​:

Fixed in Rakudo commit 60550d15, test added in roast commit 95a5c18.

Great! I'm closing this ticket as 'resolved'.

@usev6 - Status changed from 'open' to 'resolved'