Hi there,
Assuming those two files A.pm and B.pm.
The file A.pm contains a class A and a role R with a private-method and
a $!private member. (the files are in the end of the e-mail)
1) I am wondering why a role can all its private methods:
> perl6 -I. -e 'use A; use B; my $b = B.new; $b.public-method()'
priv method
2) but can't write its private members:
> perl6 -I. -e 'use A; use B; my $b = B.new; $b.set_private(A.new); $b.r'
No such private method '!!private' for invocant of type 'B'
in method set_private at /home/martin/.workspace/p6/realerror/A.pm
(A) line 24
in block <unit> at -e line 1
WHEN! the set_private looks like this:
method set_private(A $a) {
self!private = $a;
}
3) It seems to work (well, it gets a error a bit later in $b.r):
> perl6 -I. -e 'use A; use B; my $b = B.new; $b.set_private(A.new); $b.r
'
P6opaque: no such attribute '$!private' in type B when trying to get a value
in method s at /home/martin/.workspace/p6/realerror/A.pm (A) line 11
in method s at /home/martin/.workspace/p6/realerror/A.pm (A) line 11
in method r at /home/martin/.workspace/p6/realerror/A.pm (A) line 6
in block <unit> at -e line 1
WHEN set_private looks like this:
method set_private(A $a) {
$!private = $a;
}
But method !s seems to be broken now.
I dont get why :( i would expect this to work. :-(
In addition I think the error message is broken: "No such private method
'!!private' for invocant of type 'B'" it was differently in 2016.11
Cheers
Martin
> cat A.pm
class A { ... }
role R {
has A $!private;
method r {
self!s;
}
method !s {
$!private!s if $!private; # line 12
say $.b;
}
method !private-method {
say "priv method";
}
method public-method {
self!private-method;
}
method set_private(A $a) {
$!private = $a;
}
}
class A does R {
has Str $.b = 'secret';
};
> cat B.pm
use v6;
use A;
class B does R {
method b { self.r }
}
