Commit | Line | Data |
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81689caa HS |
1 | #!./perl |
2 | ||
81689caa HS |
3 | BEGIN { |
4 | chdir 't' if -d 't'; | |
20822f61 | 5 | @INC = '../lib'; |
4a32f131 | 6 | require './test.pl'; |
81689caa HS |
7 | } |
8 | ||
4a32f131 NC |
9 | plan (106); |
10 | ||
81689caa HS |
11 | sub expected { |
12 | my($object, $package, $type) = @_; | |
81689caa | 13 | print "# $object $package $type\n"; |
4a32f131 NC |
14 | is(ref($object), $package); |
15 | my $r = qr/^\Q$package\E=(\w+)\(0x([0-9a-f]+)\)$/; | |
16 | like("$object", $r); | |
17 | "$object" =~ $r; | |
18 | is($1, $type); | |
19 | # in 64-bit platforms hex warns for 32+ -bit values | |
20 | cmp_ok(do {no warnings 'portable'; hex($2)}, '==', $object); | |
81689caa HS |
21 | } |
22 | ||
23 | # test blessing simple types | |
24 | ||
25 | $a1 = bless {}, "A"; | |
4a32f131 | 26 | expected($a1, "A", "HASH"); |
81689caa | 27 | $b1 = bless [], "B"; |
4a32f131 | 28 | expected($b1, "B", "ARRAY"); |
81689caa | 29 | $c1 = bless \(map "$_", "test"), "C"; |
4a32f131 | 30 | expected($c1, "C", "SCALAR"); |
016a42f3 | 31 | our $test = "foo"; $d1 = bless \*test, "D"; |
4a32f131 | 32 | expected($d1, "D", "GLOB"); |
81689caa | 33 | $e1 = bless sub { 1 }, "E"; |
4a32f131 | 34 | expected($e1, "E", "CODE"); |
81689caa | 35 | $f1 = bless \[], "F"; |
4a32f131 | 36 | expected($f1, "F", "REF"); |
81689caa | 37 | $g1 = bless \substr("test", 1, 2), "G"; |
4a32f131 | 38 | expected($g1, "G", "LVALUE"); |
81689caa HS |
39 | |
40 | # blessing ref to object doesn't modify object | |
41 | ||
4a32f131 NC |
42 | expected(bless(\$a1, "F"), "F", "REF"); |
43 | expected($a1, "A", "HASH"); | |
81689caa HS |
44 | |
45 | # reblessing does modify object | |
46 | ||
016a42f3 | 47 | bless $a1, "A2"; |
4a32f131 | 48 | expected($a1, "A2", "HASH"); |
81689caa HS |
49 | |
50 | # local and my | |
51 | { | |
52 | local $a1 = bless $a1, "A3"; # should rebless outer $a1 | |
53 | local $b1 = bless [], "B3"; | |
54 | my $c1 = bless $c1, "C3"; # should rebless outer $c1 | |
016a42f3 | 55 | our $test2 = ""; my $d1 = bless \*test2, "D3"; |
4a32f131 NC |
56 | expected($a1, "A3", "HASH"); |
57 | expected($b1, "B3", "ARRAY"); | |
58 | expected($c1, "C3", "SCALAR"); | |
59 | expected($d1, "D3", "GLOB"); | |
81689caa | 60 | } |
4a32f131 NC |
61 | expected($a1, "A3", "HASH"); |
62 | expected($b1, "B", "ARRAY"); | |
63 | expected($c1, "C3", "SCALAR"); | |
64 | expected($d1, "D", "GLOB"); | |
81689caa HS |
65 | |
66 | # class is magic | |
67 | "E" =~ /(.)/; | |
4a32f131 | 68 | expected(bless({}, $1), "E", "HASH"); |
81689caa HS |
69 | { |
70 | local $! = 1; | |
71 | my $string = "$!"; | |
72 | $! = 2; # attempt to avoid cached string | |
73 | $! = 1; | |
4a32f131 | 74 | expected(bless({}, $!), $string, "HASH"); |
81689caa HS |
75 | |
76 | # ref is ref to magic | |
77 | { | |
78 | { | |
79 | package F; | |
4a32f131 | 80 | sub test { main::is(${$_[0]}, $string) } |
81689caa HS |
81 | } |
82 | $! = 2; | |
83 | $f1 = bless \$!, "F"; | |
84 | $! = 1; | |
85 | $f1->test; | |
81689caa HS |
86 | } |
87 | } | |
88 | ||
89 | # ref is magic | |
90 | ### example of magic variable that is a reference?? | |
91 | ||
92 | # no class, or empty string (with a warning), or undef (with two) | |
4a32f131 | 93 | expected(bless([]), 'main', "ARRAY"); |
81689caa HS |
94 | { |
95 | local $SIG{__WARN__} = sub { push @w, join '', @_ }; | |
43a954af | 96 | use warnings; |
81689caa HS |
97 | |
98 | $m = bless []; | |
4a32f131 NC |
99 | expected($m, 'main', "ARRAY"); |
100 | is (scalar @w, 0); | |
81689caa HS |
101 | |
102 | @w = (); | |
103 | $m = bless [], ''; | |
4a32f131 NC |
104 | expected($m, 'main', "ARRAY"); |
105 | is (scalar @w, 1); | |
81689caa HS |
106 | |
107 | @w = (); | |
108 | $m = bless [], undef; | |
4a32f131 NC |
109 | expected($m, 'main', "ARRAY"); |
110 | is (scalar @w, 2); | |
81689caa HS |
111 | } |
112 | ||
113 | # class is a ref | |
114 | $a1 = bless {}, "A4"; | |
115 | $b1 = eval { bless {}, $a1 }; | |
4a32f131 | 116 | isnt ($@, '', "class is a ref"); |
016a42f3 HS |
117 | |
118 | # class is an overloaded ref | |
119 | { | |
120 | package H4; | |
121 | use overload '""' => sub { "C4" }; | |
122 | } | |
123 | $h1 = bless {}, "H4"; | |
124 | $c4 = eval { bless \$test, $h1 }; | |
4a32f131 NC |
125 | is ($@, '', "class is an overloaded ref"); |
126 | expected($c4, 'C4', "SCALAR"); |