Commit | Line | Data |
59f00321 |
1 | #!./perl -w |
2 | |
3 | BEGIN { |
4 | chdir 't' if -d 't'; |
5 | @INC = '../lib'; |
6 | } |
7 | |
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8 | print "1..70\n"; |
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9 | |
10 | my $test = 0; |
11 | sub ok ($$) { |
12 | my ($ok, $name) = @_; |
13 | ++$test; |
14 | print $ok ? "ok $test - $name\n" : "not ok $test - $name\n"; |
15 | } |
16 | |
17 | $_ = 'global'; |
18 | ok( $_ eq 'global', '$_ initial value' ); |
19 | s/oba/abo/; |
20 | ok( $_ eq 'glabol', 's/// on global $_' ); |
21 | |
22 | { |
23 | my $_ = 'local'; |
24 | ok( $_ eq 'local', 'my $_ initial value' ); |
25 | s/oca/aco/; |
26 | ok( $_ eq 'lacol', 's/// on my $_' ); |
27 | /(..)/; |
28 | ok( $1 eq 'la', '// on my $_' ); |
29 | ok( tr/c/d/ == 1, 'tr/// on my $_ counts correctly' ); |
30 | ok( $_ eq 'ladol', 'tr/// on my $_' ); |
31 | { |
32 | my $_ = 'nested'; |
33 | ok( $_ eq 'nested', 'my $_ nested' ); |
34 | chop; |
35 | ok( $_ eq 'neste', 'chop on my $_' ); |
36 | } |
37 | { |
38 | our $_; |
39 | ok( $_ eq 'glabol', 'gains access to our global $_' ); |
40 | } |
41 | ok( $_ eq 'ladol', 'my $_ restored' ); |
42 | } |
43 | ok( $_ eq 'glabol', 'global $_ restored' ); |
44 | s/abo/oba/; |
45 | ok( $_ eq 'global', 's/// on global $_ again' ); |
46 | { |
47 | my $_ = 11; |
48 | our $_ = 22; |
49 | ok( $_ eq 22, 'our $_ is seen explicitly' ); |
50 | chop; |
51 | ok( $_ eq 2, '...default chop chops our $_' ); |
52 | /(.)/; |
53 | ok( $1 eq 2, '...default match sees our $_' ); |
54 | } |
55 | |
56 | $_ = "global"; |
57 | { |
a4fb8298 |
58 | my $_ = 'local'; |
59f00321 |
59 | for my $_ ("foo") { |
60 | ok( $_ eq "foo", 'for my $_' ); |
61 | /(.)/; |
62 | ok( $1 eq "f", '...m// in for my $_' ); |
63 | ok( our $_ eq 'global', '...our $_ inside for my $_' ); |
64 | } |
a4fb8298 |
65 | ok( $_ eq 'local', '...my $_ restored outside for my $_' ); |
66 | ok( our $_ eq 'global', '...our $_ restored outside for my $_' ); |
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67 | } |
68 | { |
aabe9514 |
69 | my $_ = 'local'; |
70 | for ("implicit foo") { # implicit "my $_" |
71 | ok( $_ eq "implicit foo", 'for implicit my $_' ); |
72 | /(.)/; |
73 | ok( $1 eq "i", '...m// in for implicity my $_' ); |
74 | ok( our $_ eq 'global', '...our $_ inside for implicit my $_' ); |
75 | } |
76 | ok( $_ eq 'local', '...my $_ restored outside for implicit my $_' ); |
77 | ok( our $_ eq 'global', '...our $_ restored outside for implicit my $_' ); |
78 | } |
79 | { |
80 | my $_ = 'local'; |
81 | ok( $_ eq "postfix foo", 'postfix for' ) for 'postfix foo'; |
82 | ok( $_ eq 'local', '...my $_ restored outside postfix for' ); |
83 | ok( our $_ eq 'global', '...our $_ restored outside postfix for' ); |
84 | } |
85 | { |
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86 | for our $_ ("bar") { |
87 | ok( $_ eq "bar", 'for our $_' ); |
88 | /(.)/; |
89 | ok( $1 eq "b", '...m// in for our $_' ); |
90 | } |
91 | ok( $_ eq 'global', '...our $_ restored outside for our $_' ); |
92 | } |
93 | |
94 | { |
95 | my $buf = ''; |
96 | sub tmap1 { /(.)/; $buf .= $1 } # uses our $_ |
97 | my $_ = 'x'; |
98 | sub tmap2 { /(.)/; $buf .= $1 } # uses my $_ |
99 | map { |
100 | tmap1(); |
101 | tmap2(); |
102 | ok( /^[67]\z/, 'local lexical $_ is seen in map' ); |
103 | { ok( our $_ eq 'global', 'our $_ still visible' ); } |
104 | ok( $_ == 6 || $_ == 7, 'local lexical $_ is still seen in map' ); |
a4fb8298 |
105 | { my $_ ; ok( !defined, 'nested my $_ is undefined' ); } |
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106 | } 6, 7; |
107 | ok( $buf eq 'gxgx', q/...map doesn't modify outer lexical $_/ ); |
108 | ok( $_ eq 'x', '...my $_ restored outside map' ); |
109 | ok( our $_ eq 'global', '...our $_ restored outside map' ); |
a4fb8298 |
110 | map { my $_; ok( !defined, 'redeclaring $_ in map block undefs it' ); } 1; |
111 | } |
112 | { map { my $_; ok( !defined, 'declaring $_ in map block undefs it' ); } 1; } |
113 | { |
114 | sub tmap3 () { return $_ }; |
115 | my $_ = 'local'; |
116 | sub tmap4 () { return $_ }; |
117 | my $x = join '-', map $_.tmap3.tmap4, 1 .. 2; |
118 | ok( $x eq '1globallocal-2globallocal', 'map without {}' ); |
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119 | } |
120 | { |
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121 | for my $_ (1) { |
122 | my $x = map $_, qw(a b); |
123 | ok( $x == 2, 'map in scalar context' ); |
124 | } |
125 | } |
126 | { |
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127 | my $buf = ''; |
128 | sub tgrep1 { /(.)/; $buf .= $1 } |
129 | my $_ = 'y'; |
130 | sub tgrep2 { /(.)/; $buf .= $1 } |
131 | grep { |
132 | tgrep1(); |
133 | tgrep2(); |
134 | ok( /^[89]\z/, 'local lexical $_ is seen in grep' ); |
135 | { ok( our $_ eq 'global', 'our $_ still visible' ); } |
136 | ok( $_ == 8 || $_ == 9, 'local lexical $_ is still seen in grep' ); |
137 | } 8, 9; |
138 | ok( $buf eq 'gygy', q/...grep doesn't modify outer lexical $_/ ); |
139 | ok( $_ eq 'y', '...my $_ restored outside grep' ); |
140 | ok( our $_ eq 'global', '...our $_ restored outside grep' ); |
141 | } |
142 | { |
a4fb8298 |
143 | sub tgrep3 () { return $_ }; |
144 | my $_ = 'local'; |
145 | sub tgrep4 () { return $_ }; |
146 | my $x = join '-', grep $_=$_.tgrep3.tgrep4, 1 .. 2; |
147 | ok( $x eq '1globallocal-2globallocal', 'grep without {} with side-effect' ); |
148 | ok( $_ eq 'local', '...but without extraneous side-effects' ); |
149 | } |
150 | { |
7cc47870 |
151 | for my $_ (1) { |
152 | my $x = grep $_, qw(a b); |
153 | ok( $x == 2, 'grep in scalar context' ); |
154 | } |
155 | } |
156 | { |
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157 | my $s = "toto"; |
158 | my $_ = "titi"; |
159 | $s =~ /to(?{ ok( $_ eq 'toto', 'my $_ in code-match # TODO' ) })to/ |
160 | or ok( 0, "\$s=$s should match!" ); |
161 | ok( our $_ eq 'global', '...our $_ restored outside code-match' ); |
162 | } |
163 | |
164 | { |
165 | my $_ = "abc"; |
166 | my $x = reverse; |
e1f795dc |
167 | ok( $x eq "cba", 'reverse without arguments picks up $_' ); |
59f00321 |
168 | } |
169 | |
170 | { |
171 | package notmain; |
172 | our $_ = 'notmain'; |
173 | ::ok( $::_ eq 'notmain', 'our $_ forced into main::' ); |
174 | /(.*)/; |
175 | ::ok( $1 eq 'notmain', '...m// defaults to our $_ in main::' ); |
176 | } |
177 | |
178 | my $file = 'dolbar1.tmp'; |
179 | END { unlink $file; } |
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 | } |
133706a6 |
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 | } |