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[16:26] <disbot4> <comborico> I want to make sure I have this correct.  "A method's signature can restrict the class caller by listing the class as the first parameter and appending a colon."  Example:     method create-point(::?CLASS:U $BAZ: $foo, $bar) {         $BAZ.new(x => $foo, y => $bar);     }

[16:28] <disbot4> <librasteve> it is possible to interpolate class names from variables, but that is an advanced trick

[16:30] <disbot4> <librasteve> here is typical thing that you could write:

[16:32] <disbot4> <librasteve>  method create-point(Shape:D: $foo, $bar) {     $!top-left = Point.new(x => $foo, y => $bar); } 

[16:34] <disbot4> <librasteve> https://raku.land/zef:librasteve/Math::Polygons has some examples - contributions welcome

[16:35] <disbot4> <librasteve> som in my example, you are calling this method with some code like:

[16:36] <disbot4> <librasteve>  my $square = Shape.new; $square.create-point(1,2); 

[16:37] <disbot4> <librasteve> and the type constraint on the invocant ($square) is Shape:D and that is delineated by a : colon from the rest of the Signature

[16:40] <disbot4> <comborico> Thanks

[16:46] <disbot4> <librasteve> i get the feeling that you are trying ::?CLASS:U to say something like "whatever calls this method must be the same class as the class  I declare the method in? That is pretty confusing to me since you already must be that class of object to get dispatched to a method declared in that class ;-)

[16:53] <disbot4> <comborico> True, I was trying to make sense of it myself.

[16:53] <disbot4> <comborico> I appreciate the help!

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