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1 | #!./perl |
2 | |
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3 | BEGIN { |
4 | chdir 't' if -d 't'; |
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5 | @INC = '../lib'; |
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6 | require './test.pl'; |
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7 | } |
8 | |
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9 | plan (108); |
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10 | |
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11 | sub expected { |
12 | my($object, $package, $type) = @_; |
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13 | print "# $object $package $type\n"; |
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14 | is(ref($object), $package); |
15 | my $r = qr/^\Q$package\E=(\w+)\(0x([0-9a-f]+)\)$/; |
16 | like("$object", $r); |
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17 | if ("$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); |
21 | } |
22 | else { |
23 | fail(); fail(); |
24 | } |
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25 | } |
26 | |
27 | # test blessing simple types |
28 | |
29 | $a1 = bless {}, "A"; |
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30 | expected($a1, "A", "HASH"); |
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31 | $b1 = bless [], "B"; |
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32 | expected($b1, "B", "ARRAY"); |
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33 | $c1 = bless \(map "$_", "test"), "C"; |
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34 | expected($c1, "C", "SCALAR"); |
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35 | our $test = "foo"; $d1 = bless \*test, "D"; |
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36 | expected($d1, "D", "GLOB"); |
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37 | $e1 = bless sub { 1 }, "E"; |
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38 | expected($e1, "E", "CODE"); |
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39 | $f1 = bless \[], "F"; |
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40 | expected($f1, "F", "REF"); |
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41 | $g1 = bless \substr("test", 1, 2), "G"; |
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42 | expected($g1, "G", "LVALUE"); |
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43 | |
44 | # blessing ref to object doesn't modify object |
45 | |
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46 | expected(bless(\$a1, "F"), "F", "REF"); |
47 | expected($a1, "A", "HASH"); |
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48 | |
49 | # reblessing does modify object |
50 | |
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51 | bless $a1, "A2"; |
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52 | expected($a1, "A2", "HASH"); |
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53 | |
54 | # local and my |
55 | { |
56 | local $a1 = bless $a1, "A3"; # should rebless outer $a1 |
57 | local $b1 = bless [], "B3"; |
58 | my $c1 = bless $c1, "C3"; # should rebless outer $c1 |
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59 | our $test2 = ""; my $d1 = bless \*test2, "D3"; |
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60 | expected($a1, "A3", "HASH"); |
61 | expected($b1, "B3", "ARRAY"); |
62 | expected($c1, "C3", "SCALAR"); |
63 | expected($d1, "D3", "GLOB"); |
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64 | } |
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65 | expected($a1, "A3", "HASH"); |
66 | expected($b1, "B", "ARRAY"); |
67 | expected($c1, "C3", "SCALAR"); |
68 | expected($d1, "D", "GLOB"); |
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69 | |
70 | # class is magic |
71 | "E" =~ /(.)/; |
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72 | expected(bless({}, $1), "E", "HASH"); |
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73 | { |
74 | local $! = 1; |
75 | my $string = "$!"; |
76 | $! = 2; # attempt to avoid cached string |
77 | $! = 1; |
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78 | expected(bless({}, $!), $string, "HASH"); |
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79 | |
80 | # ref is ref to magic |
81 | { |
82 | { |
83 | package F; |
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84 | sub test { main::is(${$_[0]}, $string) } |
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85 | } |
86 | $! = 2; |
87 | $f1 = bless \$!, "F"; |
88 | $! = 1; |
89 | $f1->test; |
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90 | } |
91 | } |
92 | |
93 | # ref is magic |
94 | ### example of magic variable that is a reference?? |
95 | |
96 | # no class, or empty string (with a warning), or undef (with two) |
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97 | expected(bless([]), 'main', "ARRAY"); |
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98 | { |
99 | local $SIG{__WARN__} = sub { push @w, join '', @_ }; |
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100 | use warnings; |
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101 | |
102 | $m = bless []; |
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103 | expected($m, 'main', "ARRAY"); |
104 | is (scalar @w, 0); |
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105 | |
106 | @w = (); |
107 | $m = bless [], ''; |
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108 | expected($m, 'main', "ARRAY"); |
109 | is (scalar @w, 1); |
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110 | |
111 | @w = (); |
112 | $m = bless [], undef; |
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113 | expected($m, 'main', "ARRAY"); |
114 | is (scalar @w, 2); |
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115 | } |
116 | |
117 | # class is a ref |
118 | $a1 = bless {}, "A4"; |
119 | $b1 = eval { bless {}, $a1 }; |
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120 | isnt ($@, '', "class is a ref"); |
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121 | |
122 | # class is an overloaded ref |
123 | { |
124 | package H4; |
125 | use overload '""' => sub { "C4" }; |
126 | } |
127 | $h1 = bless {}, "H4"; |
128 | $c4 = eval { bless \$test, $h1 }; |
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129 | is ($@, '', "class is an overloaded ref"); |
130 | expected($c4, 'C4', "SCALAR"); |
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131 | |
132 | { |
133 | my %h = 1..2; |
134 | my($k) = keys %h; |
135 | my $x=\$k; |
136 | bless $x, 'pam'; |
137 | is(ref $x, 'pam'); |
138 | |
139 | my $a = bless \(keys %h), 'zap'; |
140 | is(ref $a, 'zap'); |
141 | } |