On 2019-12-12 00:22, Fernando Santagata wrote:
On Thu, Dec 12, 2019 at 3:46 AM Todd Chester <toddandma...@zoho.com
<mailto:toddandma...@zoho.com>> wrote:
On 2019-12-11 10:22, Fernando Santagata wrote:
> File test.pm6
>
> unit module test;
> subset PosInt of Int is export where * > 0;
>
>
> File test.p6
>
> use lib '.';
> use test;
> sub mytest(PosInt $a) { say $a }
> mytest(1); # output: 1
> mytest(-1); # output Constraint type check failed in binding to
> parameter '$a'; expected test::PosInt but got Int (-1)
Hi Fernando,
What response do you get back with?
perl6 -c test.pl6
-T
I don't understand the reason for your question, but anyway:
$ perl6 -c test.pl6
Syntax OK
--
Fernando Santagata
Hi Frenando,
Thank you!
I was looking to see at what point in the process
the "constraint type" check triggered.
You test showed me that there is no benefit to using
a subset when it comes to trapping the error before
run time.
Another thank you for
subset PosInt of Int is export where * > 0;
I can export the subset from the module.
Can I export any other variable and constants the same way:
my $pi = 4.13 is export;
-T
