1use strict;
2use Test::More tests => 4;
3
4BEGIN {
5    $ENV{ PERL_JSON_BACKEND } = 0;
6}
7
8use JSON::PP;
9
10my $json = JSON::PP->new->convert_blessed;
11
12my $obj = OverloadedObject->new( 'foo' );
13ok( $obj eq 'foo' );
14is( $json->encode( [ $obj ] ), q{["foo"]} );
15
16# rt.cpan.org #64783
17my $foo  = bless {}, 'Foo';
18my $bar  = bless {}, 'Bar';
19
20eval q{ $json->encode( $foo ) };
21ok($@);
22eval q{ $json->encode( $bar ) };
23ok(!$@);
24
25
26package Foo;
27
28use strict;
29use overload (
30    'eq' => sub { 0 },
31    '""' => sub { $_[0] },
32    fallback => 1,
33);
34
35sub TO_JSON {
36    return $_[0];
37}
38
39package Bar;
40
41use strict;
42use overload (
43    'eq' => sub { 0 },
44    '""' => sub { $_[0] },
45    fallback => 1,
46);
47
48sub TO_JSON {
49    return overload::StrVal($_[0]);
50}
51
52
53package OverloadedObject;
54
55use overload 'eq' => sub { $_[0]->{v} eq $_[1] }, '""' => sub { $_[0]->{v} }, fallback => 1;
56
57
58sub new {
59    bless { v => $_[1] }, $_[0];
60}
61
62
63sub TO_JSON { "$_[0]"; }
64
65