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1 | #!./perl |
2 | |
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3 | # $RCSfile: local.t,v $$Revision: 4.1 $$Date: 92/08/07 18:28:04 $ |
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4 | |
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5 | print "1..58\n"; |
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6 | |
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7 | $ENV{PERL_DESTRUCT_LEVEL} = 0; # XXX known to leaks scalars |
8 | |
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9 | sub foo { |
10 | local($a, $b) = @_; |
11 | local($c, $d); |
12 | $c = "ok 3\n"; |
13 | $d = "ok 4\n"; |
14 | { local($a,$c) = ("ok 9\n", "ok 10\n"); ($x, $y) = ($a, $c); } |
15 | print $a, $b; |
16 | $c . $d; |
17 | } |
18 | |
19 | $a = "ok 5\n"; |
20 | $b = "ok 6\n"; |
21 | $c = "ok 7\n"; |
22 | $d = "ok 8\n"; |
23 | |
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24 | print &foo("ok 1\n","ok 2\n"); |
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25 | |
26 | print $a,$b,$c,$d,$x,$y; |
27 | |
28 | # same thing, only with arrays and associative arrays |
29 | |
30 | sub foo2 { |
31 | local($a, @b) = @_; |
32 | local(@c, %d); |
33 | @c = "ok 13\n"; |
34 | $d{''} = "ok 14\n"; |
35 | { local($a,@c) = ("ok 19\n", "ok 20\n"); ($x, $y) = ($a, @c); } |
36 | print $a, @b; |
37 | $c[0] . $d{''}; |
38 | } |
39 | |
40 | $a = "ok 15\n"; |
41 | @b = "ok 16\n"; |
42 | @c = "ok 17\n"; |
43 | $d{''} = "ok 18\n"; |
44 | |
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45 | print &foo2("ok 11\n","ok 12\n"); |
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46 | |
47 | print $a,@b,@c,%d,$x,$y; |
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48 | |
49 | eval 'local($$e)'; |
50 | print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 21\n"; |
51 | |
52 | eval 'local(@$e)'; |
53 | print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 22\n"; |
54 | |
55 | eval 'local(%$e)'; |
56 | print +($@ =~ /Can't localize through a reference/) ? "" : "not ", "ok 23\n"; |
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57 | |
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58 | # Array and hash elements |
59 | |
60 | @a = ('a', 'b', 'c'); |
61 | { |
62 | local($a[1]) = 'foo'; |
63 | local($a[2]) = $a[2]; |
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64 | print +($a[1] eq 'foo') ? "" : "not ", "ok 24\n"; |
65 | print +($a[2] eq 'c') ? "" : "not ", "ok 25\n"; |
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66 | undef @a; |
67 | } |
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68 | print +($a[1] eq 'b') ? "" : "not ", "ok 26\n"; |
69 | print +($a[2] eq 'c') ? "" : "not ", "ok 27\n"; |
70 | print +(!defined $a[0]) ? "" : "not ", "ok 28\n"; |
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71 | |
72 | @a = ('a', 'b', 'c'); |
73 | { |
74 | local($a[1]) = "X"; |
75 | shift @a; |
76 | } |
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77 | print +($a[0].$a[1] eq "Xb") ? "" : "not ", "ok 29\n"; |
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78 | |
79 | %h = ('a' => 1, 'b' => 2, 'c' => 3); |
80 | { |
81 | local($h{'a'}) = 'foo'; |
82 | local($h{'b'}) = $h{'b'}; |
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83 | print +($h{'a'} eq 'foo') ? "" : "not ", "ok 30\n"; |
84 | print +($h{'b'} == 2) ? "" : "not ", "ok 31\n"; |
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85 | local($h{'c'}); |
86 | delete $h{'c'}; |
87 | } |
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88 | print +($h{'a'} == 1) ? "" : "not ", "ok 32\n"; |
89 | print +($h{'b'} == 2) ? "" : "not ", "ok 33\n"; |
90 | print +($h{'c'} == 3) ? "" : "not ", "ok 34\n"; |
91 | |
92 | # check for scope leakage |
93 | $a = 'outer'; |
94 | if (1) { local $a = 'inner' } |
95 | print +($a eq 'outer') ? "" : "not ", "ok 35\n"; |
96 | |
97 | # see if localization works when scope unwinds |
98 | local $m = 5; |
99 | eval { |
100 | for $m (6) { |
101 | local $m = 7; |
102 | die "bye"; |
103 | } |
104 | }; |
105 | print $m == 5 ? "" : "not ", "ok 36\n"; |
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106 | |
107 | # see if localization works on tied arrays |
108 | { |
109 | package TA; |
110 | sub TIEARRAY { bless [], $_[0] } |
111 | sub STORE { print "# STORE [@_]\n"; $_[0]->[$_[1]] = $_[2] } |
112 | sub FETCH { my $v = $_[0]->[$_[1]]; print "# FETCH [@_=$v]\n"; $v } |
113 | sub CLEAR { print "# CLEAR [@_]\n"; @{$_[0]} = (); } |
114 | sub FETCHSIZE { scalar(@{$_[0]}) } |
115 | sub SHIFT { shift (@{$_[0]}) } |
116 | sub EXTEND {} |
117 | } |
118 | |
119 | tie @a, 'TA'; |
120 | @a = ('a', 'b', 'c'); |
121 | { |
122 | local($a[1]) = 'foo'; |
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123 | local($a[2]) = $a[2]; |
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124 | print +($a[1] eq 'foo') ? "" : "not ", "ok 37\n"; |
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125 | print +($a[2] eq 'c') ? "" : "not ", "ok 38\n"; |
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126 | @a = (); |
127 | } |
128 | print +($a[1] eq 'b') ? "" : "not ", "ok 39\n"; |
129 | print +($a[2] eq 'c') ? "" : "not ", "ok 40\n"; |
130 | print +(!defined $a[0]) ? "" : "not ", "ok 41\n"; |
131 | |
132 | { |
133 | package TH; |
134 | sub TIEHASH { bless {}, $_[0] } |
135 | sub STORE { print "# STORE [@_]\n"; $_[0]->{$_[1]} = $_[2] } |
136 | sub FETCH { my $v = $_[0]->{$_[1]}; print "# FETCH [@_=$v]\n"; $v } |
137 | sub DELETE { print "# DELETE [@_]\n"; delete $_[0]->{$_[1]}; } |
138 | sub CLEAR { print "# CLEAR [@_]\n"; %{$_[0]} = (); } |
139 | } |
140 | |
141 | # see if localization works on tied hashes |
142 | tie %h, 'TH'; |
143 | %h = ('a' => 1, 'b' => 2, 'c' => 3); |
144 | |
145 | { |
146 | local($h{'a'}) = 'foo'; |
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147 | local($h{'b'}) = $h{'b'}; |
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148 | print +($h{'a'} eq 'foo') ? "" : "not ", "ok 42\n"; |
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149 | print +($h{'b'} == 2) ? "" : "not ", "ok 43\n"; |
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150 | local($h{'c'}); |
151 | delete $h{'c'}; |
152 | } |
153 | print +($h{'a'} == 1) ? "" : "not ", "ok 44\n"; |
154 | print +($h{'b'} == 2) ? "" : "not ", "ok 45\n"; |
155 | print +($h{'c'} == 3) ? "" : "not ", "ok 46\n"; |
156 | |
157 | @a = ('a', 'b', 'c'); |
158 | { |
159 | local($a[1]) = "X"; |
160 | shift @a; |
161 | } |
162 | print +($a[0].$a[1] eq "Xb") ? "" : "not ", "ok 47\n"; |
163 | |
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164 | # now try the same for %SIG |
165 | |
166 | $SIG{TERM} = 'foo'; |
167 | $SIG{INT} = \&foo; |
168 | $SIG{__WARN__} = $SIG{INT}; |
169 | { |
170 | local($SIG{TERM}) = $SIG{TERM}; |
171 | local($SIG{INT}) = $SIG{INT}; |
172 | local($SIG{__WARN__}) = $SIG{__WARN__}; |
173 | print +($SIG{TERM} eq 'main::foo') ? "" : "not ", "ok 48\n"; |
174 | print +($SIG{INT} eq \&foo) ? "" : "not ", "ok 49\n"; |
175 | print +($SIG{__WARN__} eq \&foo) ? "" : "not ", "ok 50\n"; |
176 | local($SIG{INT}); |
177 | delete $SIG{__WARN__}; |
178 | } |
179 | print +($SIG{TERM} eq 'main::foo') ? "" : "not ", "ok 51\n"; |
180 | print +($SIG{INT} eq \&foo) ? "" : "not ", "ok 52\n"; |
181 | print +($SIG{__WARN__} eq \&foo) ? "" : "not ", "ok 53\n"; |
182 | |
183 | # and for %ENV |
184 | |
185 | $ENV{_X_} = 'a'; |
186 | $ENV{_Y_} = 'b'; |
187 | $ENV{_Z_} = 'c'; |
188 | { |
189 | local($ENV{_X_}) = 'foo'; |
190 | local($ENV{_Y_}) = $ENV{_Y_}; |
191 | print +($ENV{_X_} eq 'foo') ? "" : "not ", "ok 54\n"; |
192 | print +($ENV{_Y_} eq 'b') ? "" : "not ", "ok 55\n"; |
193 | local($ENV{_Z_}); |
194 | delete $ENV{_Z_}; |
195 | } |
196 | print +($ENV{_X_} eq 'a') ? "" : "not ", "ok 56\n"; |
197 | print +($ENV{_Y_} eq 'b') ? "" : "not ", "ok 57\n"; |
198 | print +($ENV{_Z_} eq 'c') ? "" : "not ", "ok 58\n"; |
199 | |