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1 | #!./perl -T |
2 | |
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3 | BEGIN { |
4 | chdir 't' if -d 't'; |
5 | @INC = '../lib'; |
6 | } |
7 | |
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8 | use warnings; |
9 | use strict; |
10 | $|++; |
11 | |
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12 | require "./test.pl"; |
13 | |
14 | plan(tests => 36); |
15 | |
16 | use vars qw($TODO); |
17 | |
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18 | =pod |
19 | |
20 | Even if you have a C<sub q{}>, calling C<q()> will be parsed as the |
21 | C<q()> operator. Calling C<&q()> or C<main::q()> gets you the function. |
22 | This test verifies this behavior for nine different operators. |
23 | |
24 | =cut |
25 | |
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26 | sub m { return "m-".shift } |
27 | sub q { return "q-".shift } |
28 | sub qq { return "qq-".shift } |
29 | sub qr { return "qr-".shift } |
30 | sub qw { return "qw-".shift } |
31 | sub qx { return "qx-".shift } |
32 | sub s { return "s-".shift } |
33 | sub tr { return "tr-".shift } |
34 | sub y { return "y-".shift } |
35 | |
36 | # m operator |
37 | can_ok( 'main', "m" ); |
38 | SILENCE_WARNING: { # Complains because $_ is undef |
39 | no warnings; |
40 | isnt( m('unqualified'), "m-unqualified", "m('unqualified') is oper" ); |
41 | } |
42 | is( main::m('main'), "m-main", "main::m() is func" ); |
43 | is( &m('amper'), "m-amper", "&m() is func" ); |
44 | |
45 | # q operator |
46 | can_ok( 'main', "q" ); |
47 | isnt( q('unqualified'), "q-unqualified", "q('unqualified') is oper" ); |
48 | is( main::q('main'), "q-main", "main::q() is func" ); |
49 | is( &q('amper'), "q-amper", "&q() is func" ); |
50 | |
51 | # qq operator |
52 | can_ok( 'main', "qq" ); |
53 | isnt( qq('unqualified'), "qq-unqualified", "qq('unqualified') is oper" ); |
54 | is( main::qq('main'), "qq-main", "main::qq() is func" ); |
55 | is( &qq('amper'), "qq-amper", "&qq() is func" ); |
56 | |
57 | # qr operator |
58 | can_ok( 'main', "qr" ); |
59 | isnt( qr('unqualified'), "qr-unqualified", "qr('unqualified') is oper" ); |
60 | is( main::qr('main'), "qr-main", "main::qr() is func" ); |
61 | is( &qr('amper'), "qr-amper", "&qr() is func" ); |
62 | |
63 | # qw operator |
64 | can_ok( 'main', "qw" ); |
65 | isnt( qw('unqualified'), "qw-unqualified", "qw('unqualified') is oper" ); |
66 | is( main::qw('main'), "qw-main", "main::qw() is func" ); |
67 | is( &qw('amper'), "qw-amper", "&qw() is func" ); |
68 | |
69 | # qx operator |
70 | can_ok( 'main', "qx" ); |
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71 | eval "qx('unqualified'". |
72 | ($^O eq 'MSWin32' ? " 2>&1)" : ")"); |
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73 | SKIP: { |
74 | skip("external command not portable on VMS", 1) if $^O eq 'VMS'; |
75 | TODO: { |
76 | local $TODO = $^O eq 'MSWin32' ? "Tainting of PATH not working of Windows" : $TODO; |
77 | like( $@, qr/^Insecure/, "qx('unqualified') doesn't work" ); |
78 | } |
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79 | } |
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80 | is( main::qx('main'), "qx-main", "main::qx() is func" ); |
81 | is( &qx('amper'), "qx-amper", "&qx() is func" ); |
82 | |
83 | # s operator |
84 | can_ok( 'main', "s" ); |
85 | eval "s('unqualified')"; |
86 | like( $@, qr/^Substitution replacement not terminated/, "s('unqualified') doesn't work" ); |
87 | is( main::s('main'), "s-main", "main::s() is func" ); |
88 | is( &s('amper'), "s-amper", "&s() is func" ); |
89 | |
90 | # tr operator |
91 | can_ok( 'main', "tr" ); |
92 | eval "tr('unqualified')"; |
93 | like( $@, qr/^Transliteration replacement not terminated/, "tr('unqualified') doesn't work" ); |
94 | is( main::tr('main'), "tr-main", "main::tr() is func" ); |
95 | is( &tr('amper'), "tr-amper", "&tr() is func" ); |
96 | |
97 | # y operator |
98 | can_ok( 'main', "y" ); |
99 | eval "y('unqualified')"; |
100 | like( $@, qr/^Transliteration replacement not terminated/, "y('unqualified') doesn't work" ); |
101 | is( main::y('main'), "y-main", "main::y() is func" ); |
102 | is( &y('amper'), "y-amper", "&y() is func" ); |
103 | |
104 | =pod |
105 | |
106 | from irc://irc.perl.org/p5p 2004/08/12 |
107 | |
108 | <kane-xs> bug or feature? |
109 | <purl> You decide!!!! |
110 | <kane-xs> [kane@coke ~]$ perlc -le'sub y{1};y(1)' |
111 | <kane-xs> Transliteration replacement not terminated at -e line 1. |
112 | <Nicholas> bug I think |
113 | <kane-xs> i'll perlbug |
114 | <rgs> feature |
115 | <kane-xs> smiles at rgs |
116 | <kane-xs> done |
117 | <rgs> will be closed at not a bug, |
118 | <rgs> like the previous reports of this one |
119 | <Nicholas> feature being first class and second class keywords? |
120 | <rgs> you have similar ones with q, qq, qr, qx, tr, s and m |
121 | <rgs> one could say 1st class keywords, yes |
122 | <rgs> and I forgot qw |
123 | <kane-xs> hmm silly... |
124 | <Nicholas> it's acutally operators, isn't it? |
125 | <Nicholas> as in you can't call a subroutine with the same name as an |
126 | operator unless you have the & ? |
127 | <kane-xs> or fqpn (fully qualified package name) |
128 | <kane-xs> main::y() works just fine |
129 | <kane-xs> as does &y; but not y() |
130 | <Andy> If that's a feature, then let's write a test that it continues |
131 | to work like that. |
132 | |
133 | =cut |