Resolved: How to deal with exceptions in IO::Socket::INET?

Question:

Assume there’s no application listening at port 12340 in localhost.
Shouldn’t the command below print “error” ?

$ raku -e "IO::Socket::INET.new(:host('localhost'), :port(12340)) or die 'error'"
Could not connect socket: No connection could be made because the target machine actively refused it.

  in block <unit> at -e line 1

Answer:

The current implementation of nqp::connect, the underlying logic to make the connection, throws an X::AdHoc exception. Having IO::Socket::INET.new return a Failure if not able to connect, would make more sense to me indeed.
I’ve created a Pull Request to create this behaviour.
Until then, you can use the same code change locally:

sub connect($host, $port) {
    CATCH { return .Failure }
    IO::Socket::INET.new(:$host, :$port)
}

connect('localhost', 12340) or die 'error';

If you have better answer, please add a comment about this, thank you!

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