Promise::XS::Promise - promise object
See Promise::XS.
This is Promise::XS’s actual promise object class. It implements these methods:
then()
catch()
finally()
… which behave as they normally do in promise implementations.
Additionally, all() and race() may be used, thus:
all()
race()
my $p3 = Promise::XS::Promise->all( $p1, $p2, .. ); my $p3 = Promise::XS::Promise->race( $p1, $p2, .. );
… or, just:
my $p3 = ref($p1)->all( $p1, $p2, .. ); my $p3 = ref($p1)->race( $p1, $p2, .. );
… or even:
my $p3 = $p1->all( $p1, $p2, .. ); my $p3 = $p1->race( $p1, $p2, .. );
(Note the repetition of $p1 in these last examples!)
Subclassing this class won’t work because the above-named methods always return instances of (exactly) this class. That may change eventually, but for now this is what’s what.
To install Promise::XS, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Promise::XS
CPAN shell
perl -MCPAN -e shell install Promise::XS
For more information on module installation, please visit the detailed CPAN module installation guide.