1#!perl -w
2
3use strict;
4use Test::More;
5
6BEGIN {use_ok('XS::APItest')};
7my (%sigils);
8BEGIN {
9    %sigils = (
10	       '$' => 'sv',
11	       '@' => 'av',
12	       '%' => 'hv',
13	       '&' => 'cv',
14	       '*' => 'gv'
15	      );
16}
17my %types = map {$_, eval "&to_${_}_amg()"} values %sigils;
18
19{
20    package None;
21}
22
23{
24    package Other;
25    use overload 'eq' => sub {no overloading; $_[0] == $_[1]},
26	'""' =>  sub {no overloading; "$_[0]"},
27	'~' => sub {return "Perl rules"};
28}
29
30{
31    package Same;
32    use overload 'eq' => sub {no overloading; $_[0] == $_[1]},
33	'""' =>  sub {no overloading; "$_[0]"},
34	map {$_ . '{}', sub {return $_[0]}} keys %sigils;
35}
36
37{
38    package Chain;
39    use overload 'eq' => sub {no overloading; $_[0] == $_[1]},
40	'""' =>  sub {no overloading; "$_[0]"},
41	map {$_ . '{}', sub {no overloading; return $_[0][0]}} keys %sigils;
42}
43
44my @non_ref = (['undef', undef],
45		 ['number', 42],
46		 ['string', 'Pie'],
47		);
48
49my @ref = (['unblessed SV', do {\my $whap}],
50	   ['unblessed AV', []],
51	   ['unblessed HV', {}],
52	   ['unblessed CV', sub {}],
53	   ['unblessed GV', \*STDOUT],
54	   ['no overloading', bless {}, 'None'],
55	   ['other overloading', bless {}, 'Other'],
56	   ['same overloading', bless {}, 'Same'],
57	  );
58
59while (my ($type, $enum) = each %types) {
60    foreach ([amagic_deref_call => \&amagic_deref_call],
61	     [tryAMAGICunDEREF_var => \&tryAMAGICunDEREF_var],
62	    ) {
63	my ($name, $func) = @$_;
64	foreach (@non_ref, @ref,
65		) {
66	    my ($desc, $input) = @$_;
67	    my $got = &$func($input, $enum);
68	    is($got, $input, "$name: expect no change for to_$type $desc");
69	}
70	foreach (@non_ref) {
71	    my ($desc, $sucker) = @$_;
72	    my $input = bless [$sucker], 'Chain';
73	    is(eval {&$func($input, $enum)}, undef,
74	       "$name: chain to $desc for to_$type");
75	    like($@, qr/Overloaded dereference did not return a reference/,
76		 'expected error');
77	}
78	foreach (@ref,
79		) {
80	    my ($desc, $sucker) = @$_;
81	    my $input = bless [$sucker], 'Chain';
82	    my $got = &$func($input, $enum);
83	    is($got, $sucker, "$name: chain to $desc for to_$type");
84	    $input = bless [bless [$sucker], 'Chain'], 'Chain';
85	    $got = &$func($input, $enum);
86	    is($got, $sucker, "$name: chain to chain to $desc for to_$type");
87	}
88    }
89}
90
91done_testing;
92