It doesn't require JSON::PP or JSON::XS : it works perfectly well with JSON newer than v4.0:

#!perl -l

use 5.012; # strict, //
use warnings;
use JSON 4.0;
use Data::Dumper;

select STDERR;

print $JSON::VERSION;

my $json_text = q({"flag":true});
my $json = JSON->new;
my $json_perl = $json->decode($json_text);
print "Before boolean_values = ", Dumper($json_perl);
$json->boolean_values(0,1);
my $json_perl_after = $json->decode($json_text);
print "After boolean_values = ", Dumper($json_perl_after);

__END__

4.02
Before boolean_values = $VAR1 = {
          'flag' => bless( do{\(my $o = 1)}, 'JSON::PP::Boolean' )
        };

After boolean_values = $VAR1 = {
          'flag' => 1
        };

[download]

Unlike what you said in Re^5: How do I make the JSON module convert true/false to 1/0 instead of a blessed Boolean object?, I believe the documentation is quite explicit about version requirements for that method: the text "boolean_values (since version 4.0)" is in bold header text in the POD, which I interpret as claiming that the method has only been supported since version 4.0. The only clarification in that section of the docs that I would like: not using brackets for "optional" arguments in POD, especially in code blocks, because brackets have very well-defined meaning in Perl, and boolean_values(0,1) works whereas boolean_values([0,1]) as their example implies does not.

(Note also that your example code in Re^2: How do I make the JSON module convert true/false to 1/0 instead of a blessed Boolean object? swapped the order of the arguments, so a false would decode as 1 and a true as 0, which would cause you some difficulty at some point.)

In reply to Re^5: How do I make the JSON module convert true/false to 1/0 instead of a blessed Boolean object? by pryrt
in thread How do I make the JSON module convert true/false to 1/0 instead of a blessed Boolean object? by Cody Fendant

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