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..56\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 | { |
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58 | my $_ = 'local'; |
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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 | } |
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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 | { |
69 | for our $_ ("bar") { |
70 | ok( $_ eq "bar", 'for our $_' ); |
71 | /(.)/; |
72 | ok( $1 eq "b", '...m// in for our $_' ); |
73 | } |
74 | ok( $_ eq 'global', '...our $_ restored outside for our $_' ); |
75 | } |
76 | |
77 | { |
78 | my $buf = ''; |
79 | sub tmap1 { /(.)/; $buf .= $1 } # uses our $_ |
80 | my $_ = 'x'; |
81 | sub tmap2 { /(.)/; $buf .= $1 } # uses my $_ |
82 | map { |
83 | tmap1(); |
84 | tmap2(); |
85 | ok( /^[67]\z/, 'local lexical $_ is seen in map' ); |
86 | { ok( our $_ eq 'global', 'our $_ still visible' ); } |
87 | ok( $_ == 6 || $_ == 7, 'local lexical $_ is still seen in map' ); |
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88 | { my $_ ; ok( !defined, 'nested my $_ is undefined' ); } |
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89 | } 6, 7; |
90 | ok( $buf eq 'gxgx', q/...map doesn't modify outer lexical $_/ ); |
91 | ok( $_ eq 'x', '...my $_ restored outside map' ); |
92 | ok( our $_ eq 'global', '...our $_ restored outside map' ); |
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93 | map { my $_; ok( !defined, 'redeclaring $_ in map block undefs it' ); } 1; |
94 | } |
95 | { map { my $_; ok( !defined, 'declaring $_ in map block undefs it' ); } 1; } |
96 | { |
97 | sub tmap3 () { return $_ }; |
98 | my $_ = 'local'; |
99 | sub tmap4 () { return $_ }; |
100 | my $x = join '-', map $_.tmap3.tmap4, 1 .. 2; |
101 | ok( $x eq '1globallocal-2globallocal', 'map without {}' ); |
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102 | } |
103 | { |
104 | my $buf = ''; |
105 | sub tgrep1 { /(.)/; $buf .= $1 } |
106 | my $_ = 'y'; |
107 | sub tgrep2 { /(.)/; $buf .= $1 } |
108 | grep { |
109 | tgrep1(); |
110 | tgrep2(); |
111 | ok( /^[89]\z/, 'local lexical $_ is seen in grep' ); |
112 | { ok( our $_ eq 'global', 'our $_ still visible' ); } |
113 | ok( $_ == 8 || $_ == 9, 'local lexical $_ is still seen in grep' ); |
114 | } 8, 9; |
115 | ok( $buf eq 'gygy', q/...grep doesn't modify outer lexical $_/ ); |
116 | ok( $_ eq 'y', '...my $_ restored outside grep' ); |
117 | ok( our $_ eq 'global', '...our $_ restored outside grep' ); |
118 | } |
119 | { |
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120 | sub tgrep3 () { return $_ }; |
121 | my $_ = 'local'; |
122 | sub tgrep4 () { return $_ }; |
123 | my $x = join '-', grep $_=$_.tgrep3.tgrep4, 1 .. 2; |
124 | ok( $x eq '1globallocal-2globallocal', 'grep without {} with side-effect' ); |
125 | ok( $_ eq 'local', '...but without extraneous side-effects' ); |
126 | } |
127 | { |
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128 | my $s = "toto"; |
129 | my $_ = "titi"; |
130 | $s =~ /to(?{ ok( $_ eq 'toto', 'my $_ in code-match # TODO' ) })to/ |
131 | or ok( 0, "\$s=$s should match!" ); |
132 | ok( our $_ eq 'global', '...our $_ restored outside code-match' ); |
133 | } |
134 | |
135 | { |
136 | my $_ = "abc"; |
137 | my $x = reverse; |
138 | ok( $x eq "cba", 'reverse without arguments picks up $_ # TODO' ); |
139 | } |
140 | |
141 | { |
142 | package notmain; |
143 | our $_ = 'notmain'; |
144 | ::ok( $::_ eq 'notmain', 'our $_ forced into main::' ); |
145 | /(.*)/; |
146 | ::ok( $1 eq 'notmain', '...m// defaults to our $_ in main::' ); |
147 | } |
148 | |
149 | my $file = 'dolbar1.tmp'; |
150 | END { unlink $file; } |
151 | { |
152 | open my $_, '>', $file or die "Can't open $file: $!"; |
153 | print $_ "hello\n"; |
154 | close $_; |
155 | ok( -s $file, 'writing to filehandle $_ works' ); |
156 | } |
157 | { |
158 | open my $_, $file or die "Can't open $file: $!"; |
159 | my $x = <$_>; |
160 | ok( $x eq "hello\n", 'reading from <$_> works' ); |
161 | close $_; |
162 | } |