Commit | Line | Data |
767a6a26 |
1 | pp_hot.c |
599cee73 |
2 | |
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3 | print() on unopened filehandle abc [pp_print] |
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4 | $f = $a = "abc" ; print $f $a |
5 | |
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6 | Filehandle %s opened only for input [pp_print] |
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7 | print STDIN "abc" ; |
8 | |
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9 | Filehandle %s opened only for output [pp_print] |
977289e4 |
10 | $a = <STDOUT> ; |
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11 | |
9a7dcd9c |
12 | print() on closed filehandle %s [pp_print] |
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13 | close STDIN ; print STDIN "abc" ; |
14 | |
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15 | uninitialized [pp_rv2av] |
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16 | my $a = undef ; my @b = @$a |
17 | |
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18 | uninitialized [pp_rv2hv] |
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19 | my $a = undef ; my %b = %$a |
20 | |
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21 | Odd number of elements in hash list [pp_aassign] |
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22 | %X = (1,2,3) ; |
23 | |
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24 | Reference found where even-sized list expected [pp_aassign] |
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25 | $X = [ 1 ..3 ]; |
26 | |
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27 | Filehandle %s opened only for output [Perl_do_readline] |
28 | open (FH, ">./xcv") ; |
29 | my $a = <FH> ; |
30 | |
31 | glob failed (can't start child: %s) [Perl_do_readline] <<TODO |
32 | |
9a7dcd9c |
33 | readline() on closed filehandle %s [Perl_do_readline] |
599cee73 |
34 | close STDIN ; $a = <STDIN>; |
35 | |
790090df |
36 | readline() on closed filehandle %s [Perl_do_readline] |
37 | readline(NONESUCH); |
38 | |
767a6a26 |
39 | glob failed (child exited with status %d%s) [Perl_do_readline] <<TODO |
40 | |
41 | Deep recursion on subroutine \"%s\" [Perl_sub_crush_depth] |
6bc102ca |
42 | sub fred { fred() if $a++ < 200} fred() |
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43 | |
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44 | Deep recursion on anonymous subroutine [Perl_sub_crush_depth] |
6bc102ca |
45 | $a = sub { &$a if $a++ < 200} &$a |
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46 | |
d804643f |
47 | Use of reference "%s" as array index [pp_aelem] |
48 | $x[\1] |
49 | |
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50 | __END__ |
767a6a26 |
51 | # pp_hot.c [pp_print] |
4438c4b7 |
52 | use warnings 'unopened' ; |
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53 | $f = $a = "abc" ; |
0453d815 |
54 | print $f $a; |
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55 | no warnings 'unopened' ; |
0453d815 |
56 | print $f $a; |
cf26e47f |
57 | use warnings; |
58 | no warnings 'unopened' ; |
59 | print $f $a; |
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60 | EXPECT |
2dd78f96 |
61 | print() on unopened filehandle abc at - line 4. |
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62 | ######## |
767a6a26 |
63 | # pp_hot.c [pp_print] |
4438c4b7 |
64 | use warnings 'io' ; |
977289e4 |
65 | # There is no guarantee that STDOUT is output only, or STDIN input only. |
66 | # Certainly on some BSDs (at least FreeBSD, Darwin, BSDi) file descriptors |
67 | # 1 and 2 are opened read/write on the tty, and the IO layers may reflect this. |
68 | # So we must make our own file handle that is read only. |
69 | my $file = "./xcv" ; unlink $file ; |
70 | open (FH, ">$file") or die $! ; |
71 | close FH or die $! ; |
72 | die "There is no file $file" unless -f $file ; |
73 | open (FH, "<$file") or die $! ; |
74 | print FH "anc" ; |
75 | open(FOO, "<&FH") or die $! ; |
76 | print FOO "anc" ; |
37bd1396 |
77 | no warnings 'io' ; |
977289e4 |
78 | print FH "anc" ; |
79 | print FOO "anc" ; |
80 | use warnings 'io' ; |
81 | print FH "anc" ; |
82 | print FOO "anc" ; |
83 | close (FH) or die $! ; |
84 | close (FOO) or die $! ; |
85 | unlink $file ; |
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86 | EXPECT |
977289e4 |
87 | Filehandle FH opened only for input at - line 12. |
88 | Filehandle FOO opened only for input at - line 14. |
89 | Filehandle FH opened only for input at - line 19. |
90 | Filehandle FOO opened only for input at - line 20. |
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91 | ######## |
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92 | # pp_hot.c [pp_print] |
4438c4b7 |
93 | use warnings 'closed' ; |
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94 | close STDIN ; |
95 | print STDIN "anc"; |
69282e91 |
96 | opendir STDIN, "."; |
97 | print STDIN "anc"; |
98 | closedir STDIN; |
4438c4b7 |
99 | no warnings 'closed' ; |
0453d815 |
100 | print STDIN "anc"; |
69282e91 |
101 | opendir STDIN, "."; |
102 | print STDIN "anc"; |
cf26e47f |
103 | use warnings; |
104 | no warnings 'closed' ; |
105 | print STDIN "anc"; |
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106 | EXPECT |
43693395 |
107 | print() on closed filehandle STDIN at - line 4. |
108 | print() on closed filehandle STDIN at - line 6. |
109 | (Are you trying to call print() on dirhandle STDIN?) |
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110 | ######## |
f55e507d |
111 | # pp_hot.c [pp_print] |
112 | # [ID 20020425.012] from Dave Steiner <steiner@bakerst.rutgers.edu> |
113 | # This goes segv on 5.7.3 |
114 | use warnings 'closed' ; |
115 | my $fh = *STDOUT{IO}; |
116 | close STDOUT or die "Can't close STDOUT"; |
117 | print $fh "Shouldn't print anything, but shouldn't SEGV either\n"; |
118 | EXPECT |
119 | print() on closed filehandle at - line 7. |
120 | ######## |
f62cb720 |
121 | # pp_hot.c [pp_print] |
122 | package foo; |
123 | use warnings 'closed'; |
124 | open my $fh1, "nonexistent"; |
125 | print $fh1 42; |
126 | open $fh2, "nonexistent"; |
127 | print $fh2 42; |
128 | open $bar::fh3, "nonexistent"; |
129 | print $bar::fh3 42; |
130 | open bar::FH4, "nonexistent"; |
131 | print bar::FH4 42; |
132 | EXPECT |
133 | print() on closed filehandle $fh1 at - line 5. |
134 | print() on closed filehandle $fh2 at - line 7. |
135 | print() on closed filehandle $fh3 at - line 9. |
136 | print() on closed filehandle FH4 at - line 11. |
137 | ######## |
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138 | # pp_hot.c [pp_rv2av] |
4438c4b7 |
139 | use warnings 'uninitialized' ; |
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140 | my $a = undef ; |
0453d815 |
141 | my @b = @$a; |
4438c4b7 |
142 | no warnings 'uninitialized' ; |
0453d815 |
143 | my @c = @$a; |
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144 | EXPECT |
29489e7c |
145 | Use of uninitialized value $a in array dereference at - line 4. |
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146 | ######## |
767a6a26 |
147 | # pp_hot.c [pp_rv2hv] |
4438c4b7 |
148 | use warnings 'uninitialized' ; |
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149 | my $a = undef ; |
0453d815 |
150 | my %b = %$a; |
4438c4b7 |
151 | no warnings 'uninitialized' ; |
0453d815 |
152 | my %c = %$a; |
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153 | EXPECT |
29489e7c |
154 | Use of uninitialized value $a in hash dereference at - line 4. |
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155 | ######## |
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156 | # pp_hot.c [pp_aassign] |
e476b1b5 |
157 | use warnings 'misc' ; |
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158 | my %X ; %X = (1,2,3) ; |
e476b1b5 |
159 | no warnings 'misc' ; |
0453d815 |
160 | my %Y ; %Y = (1,2,3) ; |
599cee73 |
161 | EXPECT |
162 | Odd number of elements in hash assignment at - line 3. |
163 | ######## |
767a6a26 |
164 | # pp_hot.c [pp_aassign] |
e476b1b5 |
165 | use warnings 'misc' ; |
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166 | my %X ; %X = [1 .. 3] ; |
e476b1b5 |
167 | no warnings 'misc' ; |
0453d815 |
168 | my %Y ; %Y = [1 .. 3] ; |
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169 | EXPECT |
170 | Reference found where even-sized list expected at - line 3. |
171 | ######## |
767a6a26 |
172 | # pp_hot.c [Perl_do_readline] |
4438c4b7 |
173 | use warnings 'closed' ; |
69282e91 |
174 | close STDIN ; $a = <STDIN> ; |
175 | opendir STDIN, "." ; $a = <STDIN> ; |
176 | closedir STDIN; |
4438c4b7 |
177 | no warnings 'closed' ; |
69282e91 |
178 | opendir STDIN, "." ; $a = <STDIN> ; |
0453d815 |
179 | $a = <STDIN> ; |
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180 | EXPECT |
43693395 |
181 | readline() on closed filehandle STDIN at - line 3. |
182 | readline() on closed filehandle STDIN at - line 4. |
183 | (Are you trying to call readline() on dirhandle STDIN?) |
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184 | ######## |
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185 | # pp_hot.c [Perl_do_readline] |
186 | use warnings 'io' ; |
187 | my $file = "./xcv" ; unlink $file ; |
977289e4 |
188 | open (FH, ">$file") or die $! ; |
767a6a26 |
189 | my $a = <FH> ; |
190 | no warnings 'io' ; |
191 | $a = <FH> ; |
977289e4 |
192 | use warnings 'io' ; |
193 | open(FOO, ">&FH") or die $! ; |
194 | $a = <FOO> ; |
195 | no warnings 'io' ; |
196 | $a = <FOO> ; |
197 | use warnings 'io' ; |
198 | $a = <FOO> ; |
199 | $a = <FH> ; |
200 | close (FH) or die $! ; |
201 | close (FOO) or die $! ; |
767a6a26 |
202 | unlink $file ; |
203 | EXPECT |
43693395 |
204 | Filehandle FH opened only for output at - line 5. |
977289e4 |
205 | Filehandle FOO opened only for output at - line 10. |
206 | Filehandle FOO opened only for output at - line 14. |
207 | Filehandle FH opened only for output at - line 15. |
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208 | ######## |
209 | # pp_hot.c [Perl_sub_crush_depth] |
4438c4b7 |
210 | use warnings 'recursion' ; |
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211 | sub fred |
212 | { |
213 | fred() if $a++ < 200 |
214 | } |
4a925ff6 |
215 | { |
216 | local $SIG{__WARN__} = sub { |
217 | die "ok\n" if $_[0] =~ /^Deep recursion on subroutine "main::fred"/ |
218 | }; |
219 | fred(); |
220 | } |
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221 | EXPECT |
4a925ff6 |
222 | ok |
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223 | ######## |
767a6a26 |
224 | # pp_hot.c [Perl_sub_crush_depth] |
4438c4b7 |
225 | no warnings 'recursion' ; |
0453d815 |
226 | sub fred |
227 | { |
228 | fred() if $a++ < 200 |
229 | } |
230 | { |
231 | local $SIG{__WARN__} = sub { |
232 | die "ok\n" if $_[0] =~ /^Deep recursion on subroutine "main::fred"/ |
233 | }; |
234 | fred(); |
235 | } |
236 | EXPECT |
237 | |
238 | ######## |
767a6a26 |
239 | # pp_hot.c [Perl_sub_crush_depth] |
4438c4b7 |
240 | use warnings 'recursion' ; |
599cee73 |
241 | $b = sub |
242 | { |
243 | &$b if $a++ < 200 |
244 | } ; |
245 | |
246 | &$b ; |
247 | EXPECT |
248 | Deep recursion on anonymous subroutine at - line 5. |
0453d815 |
249 | ######## |
767a6a26 |
250 | # pp_hot.c [Perl_sub_crush_depth] |
4438c4b7 |
251 | no warnings 'recursion' ; |
0453d815 |
252 | $b = sub |
253 | { |
254 | &$b if $a++ < 200 |
255 | } ; |
256 | |
257 | &$b ; |
258 | EXPECT |
6bc102ca |
259 | ######## |
260 | # pp_hot.c [pp_concat] |
8d6d96c1 |
261 | use warnings 'uninitialized'; |
262 | my($x, $y); |
263 | sub a { shift } |
264 | a($x . "x"); # should warn once |
265 | a($x . $y); # should warn twice |
266 | $x .= $y; # should warn once |
267 | $y .= $y; # should warn once |
268 | EXPECT |
29489e7c |
269 | Use of uninitialized value $x in concatenation (.) or string at - line 5. |
270 | Use of uninitialized value $y in concatenation (.) or string at - line 6. |
271 | Use of uninitialized value $x in concatenation (.) or string at - line 6. |
272 | Use of uninitialized value $y in concatenation (.) or string at - line 7. |
273 | Use of uninitialized value $y in concatenation (.) or string at - line 8. |
8d6d96c1 |
274 | ######## |
d804643f |
275 | # pp_hot.c [pp_aelem] |
276 | { |
277 | use warnings 'misc'; |
278 | print $x[\1]; |
279 | } |
280 | { |
281 | no warnings 'misc'; |
282 | print $x[\1]; |
283 | } |
284 | |
285 | EXPECT |
286 | OPTION regex |
287 | Use of reference ".*" as array index at - line 4. |
1f1cc344 |
288 | ######## |
289 | # pp_hot.c [pp_aelem] |
290 | package Foo;use overload q("") => sub {};package main;$a = bless {}, "Foo"; |
291 | $b = {}; |
292 | { |
293 | use warnings 'misc'; |
294 | print $x[$a]; |
295 | print $x[$b]; |
296 | } |
297 | { |
298 | no warnings 'misc'; |
299 | print $x[$a]; |
300 | print $x[$b]; |
301 | } |
302 | |
303 | EXPECT |
304 | OPTION regex |
305 | Use of reference ".*" as array index at - line 7. |