Commit | Line | Data |
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1 | #!./perl |
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2 | |
3 | BEGIN { |
4 | chdir 't' if -d 't'; |
5 | @INC = '../lib'; |
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6 | require './test.pl'; |
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7 | } |
8 | |
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9 | print "1..70\n"; |
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10 | |
11 | my $test = 0; |
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12 | sub ok ($@) { |
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13 | my ($ok, $name) = @_; |
14 | ++$test; |
15 | print $ok ? "ok $test - $name\n" : "not ok $test - $name\n"; |
16 | } |
17 | |
18 | $_ = 'global'; |
19 | ok( $_ eq 'global', '$_ initial value' ); |
20 | s/oba/abo/; |
21 | ok( $_ eq 'glabol', 's/// on global $_' ); |
22 | |
23 | { |
24 | my $_ = 'local'; |
25 | ok( $_ eq 'local', 'my $_ initial value' ); |
26 | s/oca/aco/; |
27 | ok( $_ eq 'lacol', 's/// on my $_' ); |
28 | /(..)/; |
29 | ok( $1 eq 'la', '// on my $_' ); |
30 | ok( tr/c/d/ == 1, 'tr/// on my $_ counts correctly' ); |
31 | ok( $_ eq 'ladol', 'tr/// on my $_' ); |
32 | { |
33 | my $_ = 'nested'; |
34 | ok( $_ eq 'nested', 'my $_ nested' ); |
35 | chop; |
36 | ok( $_ eq 'neste', 'chop on my $_' ); |
37 | } |
38 | { |
39 | our $_; |
40 | ok( $_ eq 'glabol', 'gains access to our global $_' ); |
41 | } |
42 | ok( $_ eq 'ladol', 'my $_ restored' ); |
43 | } |
44 | ok( $_ eq 'glabol', 'global $_ restored' ); |
45 | s/abo/oba/; |
46 | ok( $_ eq 'global', 's/// on global $_ again' ); |
47 | { |
48 | my $_ = 11; |
49 | our $_ = 22; |
50 | ok( $_ eq 22, 'our $_ is seen explicitly' ); |
51 | chop; |
52 | ok( $_ eq 2, '...default chop chops our $_' ); |
53 | /(.)/; |
54 | ok( $1 eq 2, '...default match sees our $_' ); |
55 | } |
56 | |
57 | $_ = "global"; |
58 | { |
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59 | my $_ = 'local'; |
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60 | for my $_ ("foo") { |
61 | ok( $_ eq "foo", 'for my $_' ); |
62 | /(.)/; |
63 | ok( $1 eq "f", '...m// in for my $_' ); |
64 | ok( our $_ eq 'global', '...our $_ inside for my $_' ); |
65 | } |
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66 | ok( $_ eq 'local', '...my $_ restored outside for my $_' ); |
67 | ok( our $_ eq 'global', '...our $_ restored outside for my $_' ); |
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68 | } |
69 | { |
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70 | my $_ = 'local'; |
71 | for ("implicit foo") { # implicit "my $_" |
72 | ok( $_ eq "implicit foo", 'for implicit my $_' ); |
73 | /(.)/; |
74 | ok( $1 eq "i", '...m// in for implicity my $_' ); |
75 | ok( our $_ eq 'global', '...our $_ inside for implicit my $_' ); |
76 | } |
77 | ok( $_ eq 'local', '...my $_ restored outside for implicit my $_' ); |
78 | ok( our $_ eq 'global', '...our $_ restored outside for implicit my $_' ); |
79 | } |
80 | { |
81 | my $_ = 'local'; |
82 | ok( $_ eq "postfix foo", 'postfix for' ) for 'postfix foo'; |
83 | ok( $_ eq 'local', '...my $_ restored outside postfix for' ); |
84 | ok( our $_ eq 'global', '...our $_ restored outside postfix for' ); |
85 | } |
86 | { |
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87 | for our $_ ("bar") { |
88 | ok( $_ eq "bar", 'for our $_' ); |
89 | /(.)/; |
90 | ok( $1 eq "b", '...m// in for our $_' ); |
91 | } |
92 | ok( $_ eq 'global', '...our $_ restored outside for our $_' ); |
93 | } |
94 | |
95 | { |
96 | my $buf = ''; |
97 | sub tmap1 { /(.)/; $buf .= $1 } # uses our $_ |
98 | my $_ = 'x'; |
99 | sub tmap2 { /(.)/; $buf .= $1 } # uses my $_ |
100 | map { |
101 | tmap1(); |
102 | tmap2(); |
103 | ok( /^[67]\z/, 'local lexical $_ is seen in map' ); |
104 | { ok( our $_ eq 'global', 'our $_ still visible' ); } |
105 | ok( $_ == 6 || $_ == 7, 'local lexical $_ is still seen in map' ); |
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106 | { my $_ ; ok( !defined, 'nested my $_ is undefined' ); } |
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107 | } 6, 7; |
108 | ok( $buf eq 'gxgx', q/...map doesn't modify outer lexical $_/ ); |
109 | ok( $_ eq 'x', '...my $_ restored outside map' ); |
110 | ok( our $_ eq 'global', '...our $_ restored outside map' ); |
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111 | map { my $_; ok( !defined, 'redeclaring $_ in map block undefs it' ); } 1; |
112 | } |
113 | { map { my $_; ok( !defined, 'declaring $_ in map block undefs it' ); } 1; } |
114 | { |
115 | sub tmap3 () { return $_ }; |
116 | my $_ = 'local'; |
117 | sub tmap4 () { return $_ }; |
118 | my $x = join '-', map $_.tmap3.tmap4, 1 .. 2; |
119 | ok( $x eq '1globallocal-2globallocal', 'map without {}' ); |
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120 | } |
121 | { |
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122 | for my $_ (1) { |
123 | my $x = map $_, qw(a b); |
124 | ok( $x == 2, 'map in scalar context' ); |
125 | } |
126 | } |
127 | { |
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128 | my $buf = ''; |
129 | sub tgrep1 { /(.)/; $buf .= $1 } |
130 | my $_ = 'y'; |
131 | sub tgrep2 { /(.)/; $buf .= $1 } |
132 | grep { |
133 | tgrep1(); |
134 | tgrep2(); |
135 | ok( /^[89]\z/, 'local lexical $_ is seen in grep' ); |
136 | { ok( our $_ eq 'global', 'our $_ still visible' ); } |
137 | ok( $_ == 8 || $_ == 9, 'local lexical $_ is still seen in grep' ); |
138 | } 8, 9; |
139 | ok( $buf eq 'gygy', q/...grep doesn't modify outer lexical $_/ ); |
140 | ok( $_ eq 'y', '...my $_ restored outside grep' ); |
141 | ok( our $_ eq 'global', '...our $_ restored outside grep' ); |
142 | } |
143 | { |
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144 | sub tgrep3 () { return $_ }; |
145 | my $_ = 'local'; |
146 | sub tgrep4 () { return $_ }; |
147 | my $x = join '-', grep $_=$_.tgrep3.tgrep4, 1 .. 2; |
148 | ok( $x eq '1globallocal-2globallocal', 'grep without {} with side-effect' ); |
149 | ok( $_ eq 'local', '...but without extraneous side-effects' ); |
150 | } |
151 | { |
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152 | for my $_ (1) { |
153 | my $x = grep $_, qw(a b); |
154 | ok( $x == 2, 'grep in scalar context' ); |
155 | } |
156 | } |
157 | { |
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158 | my $s = "toto"; |
159 | my $_ = "titi"; |
160 | $s =~ /to(?{ ok( $_ eq 'toto', 'my $_ in code-match # TODO' ) })to/ |
161 | or ok( 0, "\$s=$s should match!" ); |
162 | ok( our $_ eq 'global', '...our $_ restored outside code-match' ); |
163 | } |
164 | |
165 | { |
166 | my $_ = "abc"; |
167 | my $x = reverse; |
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168 | ok( $x eq "cba", 'reverse without arguments picks up $_' ); |
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169 | } |
170 | |
171 | { |
172 | package notmain; |
173 | our $_ = 'notmain'; |
174 | ::ok( $::_ eq 'notmain', 'our $_ forced into main::' ); |
175 | /(.*)/; |
176 | ::ok( $1 eq 'notmain', '...m// defaults to our $_ in main::' ); |
177 | } |
178 | |
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179 | my $file = tempfile(); |
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180 | { |
181 | open my $_, '>', $file or die "Can't open $file: $!"; |
182 | print $_ "hello\n"; |
183 | close $_; |
184 | ok( -s $file, 'writing to filehandle $_ works' ); |
185 | } |
186 | { |
187 | open my $_, $file or die "Can't open $file: $!"; |
188 | my $x = <$_>; |
189 | ok( $x eq "hello\n", 'reading from <$_> works' ); |
190 | close $_; |
191 | } |
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192 | |
193 | { |
194 | $fqdb::_ = 'fqdb'; |
195 | ok( $fqdb::_ eq 'fqdb', 'fully qualified $_ is not in main' ); |
196 | ok( eval q/$fqdb::_/ eq 'fqdb', 'fully qualified, evaled $_ is not in main' ); |
197 | package fqdb; |
198 | ::ok( $_ ne 'fqdb', 'unqualified $_ is in main' ); |
199 | ::ok( q/$_/ ne 'fqdb', 'unqualified, evaled $_ is in main' ); |
200 | } |