use strict;

use Test::More tests => 4;

BEGIN {

    $ENV{ PERL_JSON_BACKEND } = 0;

}

BEGIN { $ENV{PERL_JSON_BACKEND} ||= "JSON::backportPP"; }

use JSON;

my $json = JSON->new->convert_blessed;

my $obj = OverloadedObject->new( 'foo' );

ok( $obj eq 'foo' );

is( $json->encode( [ $obj ] ), q{["foo"]} );

# rt.cpan.org #64783

my $foo  = bless {}, 'Foo';

my $bar  = bless {}, 'Bar';

eval q{ $json->encode( $foo ) };

ok($@);

eval q{ $json->encode( $bar ) };

ok(!$@);

package Foo;

use strict;

use overload (

    'eq' => sub { 0 },

    '""' => sub { $_[0] },

    fallback => 1,

);

sub TO_JSON {

    return $_[0];

}

package Bar;

use strict;

use overload (

    'eq' => sub { 0 },

    '""' => sub { $_[0] },

    fallback => 1,

);

sub TO_JSON {

    return overload::StrVal($_[0]);

}

package OverloadedObject;

use overload 'eq' => sub { $_[0]->{v} eq $_[1] }, '""' => sub { $_[0]->{v} }, fallback => 1;

sub new {

    bless { v => $_[1] }, $_[0];

}

sub TO_JSON { "$_[0]"; }