Re: Type::Library messages lost when used with named parameters in Type::Params

A workaround for the actual issue, but can you wrap the call in an eval() block, check the error eval catches (if it does catch anything), and print your custom message?

#!/usr/bin/perl
use warnings;
use strict;

sub divide {
    return 1 / 0;
}

my $x;

eval { $x = divide(); }; 

if ($@ =~ /Illegal division/){

    print "Don't divide by zero, dummy!\n";

    # die with called function's error if required

    die $@;
}

print "$x\n";
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-stevieb

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Re^2: Type::Library messages lost when used with named parameters in Type::Params by 1nickt (Canon) on Jun 30, 2015 at 00:35 UTC
Hi Stevie, thanks, yeah, that would work. But I assume that the Type::* modules do that under the hood ... If I had to eval a test to print a message, there wouldn't be much point in using the whole Type::* infrastructure.... As the docs say, the default message is a "vaguely sensible default." So if I can't get my messages to print, it won't be the end of the world. But it's frustrating that it only stops working in a certain case. I'm going to see if I can figure out how to fix it in Type::Tiny before I give up :)	[reply]

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Re^2: Type::Library messages lost when used with named parameters in Type::Params
by 1nickt (Canon) on Jun 30, 2015 at 00:35 UTC

Hi Stevie, thanks, yeah, that would work. But I assume that the Type::* modules do that under the hood ... If I had to eval a test to print a message, there wouldn't be much point in using the whole Type::* infrastructure....

As the docs say, the default message is a "vaguely sensible default." So if I can't get my messages to print, it won't be the end of the world. But it's frustrating that it only stops working in a certain case.

I'm going to see if I can figure out how to fix it in Type::Tiny before I give up :)

[reply]