I'd like to point out that Todd is from Perl 5, which doesn't distinguish between subs and methods because its built-in OO is a minimalist hack. An introduction to true objects might be in order.
On Tue, Sep 11, 2018 at 8:34 AM Simon Proctor <simon.proc...@gmail.com> wrote: > Also Todd I gave a talk on signatures types and multi methods at The Perl > Conference this year. > > https://www.youtube.com/watch?v=Sy-qb5nXKyc&t=8606s > > That should be just before the start. > > > https://www.slideshare.net/SimonProctor8/perl6-signatures-types-and-multicall > > Slides are here. > > Hope this helps. > > Simon > > On Tue, 11 Sep 2018 at 13:05 Simon Proctor <simon.proc...@gmail.com> > wrote: > >> 1) why is it a "method" and not a "function"? >> >> methods are all on instance of a Class (or Role) they can locally access >> the instances data via self or $ or ... see below. >> >> 1-1/2) why is there a color after a$? What happens to $a? >> >> You can as an extra option give your instance object a different name, >> you seperate that from the rest of the args with a : >> >> 2) What is an "invocant"? Does it mean I can access it >> by placing it after something with a dot? Sort of >> like >> contains("abc", "b") >> "abc".contians("b") >> >> The incovant is the object you invoke the method on. It's the thing that >> gets assigned to self, $ (and whatever else you want to call it) >> >> 3) What makes the "invocant" special over the other second >> and third parameters? >> >> See about >> >> > class Foo { >> >> 4) I see no class called "Foo" over on >> https://docs.perl6.org/type.html >> >> That's a class being defined for this example >> >> 5) Are they creating a new class? If so, why? >> >> To make an example >> >> > method whoami($me:) { >> >> 6) where is @b and %c? >> >> In this case thet aren't being passed. >> >> >> > "Well I'm class $me.^name(), of course!" >> >> 7) why is there a caret in front of "name"? >> >> There are certain Meta Object methods that are access with a ^ infront of >> the name. I'd need to check the exact definition though. >> >> Please note the Perl5 docs have had decades of people working on them the >> Perl6 ones.... less so. There's bound to be some difference in scope. >> >> On Tue, 11 Sep 2018 at 12:11 ToddAndMargo <toddandma...@zoho.com> wrote: >> >>> On 09/11/2018 03:30 AM, JJ Merelo wrote: >>> > Also, "is no help whatsoever" is no help whatsoever. Saying what part >>> of >>> > it is not clear enough, or could be explained better, is. >>> > >>> >>> Well now, >>> >>> > method ($a: @b, %c) {}; # first argument is the invocant >>> >>> 1) why is it a "method" and not a "function"? >>> >>> 1-1/2) why is there a color after a$? What happens to $a? >>> >>> 2) What is an "invocant"? Does it mean I can access it >>> by placing it after something with a dot? Sort of >>> like >>> contains("abc", "b") >>> "abc".contians("b") >>> >>> 3) What makes the "invocant" special over the other second >>> and third parameters? >>> >>> > class Foo { >>> >>> 4) I see no class called "Foo" over on >>> https://docs.perl6.org/type.html >>> >>> 5) Are they creating a new class? If so, why? >>> >>> > method whoami($me:) { >>> >>> 6) where is @b and %c? >>> >>> > "Well I'm class $me.^name(), of course!" >>> >>> 7) why is there a caret in front of "name"? >>> >>> > } >>> > } >>> > >>> > >>> > say Foo.whoami; # OUTPUT: «Well I'm class Foo, of course!» >>> >>> 8) no clue how they got there >>> >>> >>> JJ, have you ever used Perl 5's perldocs? They are a bazillion >>> times easier to understand than Perl 6's. >>> >>> Thank you for the help with this? >>> >>> -T >>> >> -- >> Simon Proctor >> Cognoscite aliquid novum cotidie >> > -- > Simon Proctor > Cognoscite aliquid novum cotidie > -- brandon s allbery kf8nh allber...@gmail.com
