On Fri, Sep 14, 2018 at 10:42 PM ToddAndMargo <toddandma...@zoho.com> wrote:
> When I said "yet", I presumed the a variable can be > redefined at will: > > $ p6 'my $x; say $x.perl; > $x="abc"; say $x.perl; > $x=Nil; say $x.perl;' > Any > "abc" > Any > > And that the receiving method only cares what you feed it > at the time it is called. > Your example doesn't limit the type. If you limit the type, you'll get an error by assigning it something the type doesn't allow. my Int $x; $x = "abc"; # error can't put a string in an Int my Int:U $x; $x = 42; # error can't put a definite value in an Int:U my Int:D $x = 42; $x = Nil; # error, can't undefine. You're only allowed to put in things that fit. If an argument to a routine is limited, you can only pass in things that fit. Curt
