Commit | Line | Data |
---|---|---|
d97c33b5 DM |
1 | #!./perl |
2 | ||
3 | # A place to put some simple leak tests. Uses XS::APItest to make | |
64dc9714 | 4 | # PL_sv_count available, allowing us to run a bit of code multiple times and |
d97c33b5 DM |
5 | # see if the count increases. |
6 | ||
7 | BEGIN { | |
8 | chdir 't'; | |
9 | @INC = '../lib'; | |
10 | require './test.pl'; | |
11 | ||
12 | eval { require XS::APItest; XS::APItest->import('sv_count'); 1 } | |
13 | or skip_all("XS::APItest not available"); | |
14 | } | |
15 | ||
ef09a500 DM |
16 | use Config; |
17 | ||
7f5d1fb2 | 18 | plan tests => 114; |
d97c33b5 DM |
19 | |
20 | # run some code N times. If the number of SVs at the end of loop N is | |
21 | # greater than (N-1)*delta at the end of loop 1, we've got a leak | |
22 | # | |
23 | sub leak { | |
24 | my ($n, $delta, $code, @rest) = @_; | |
25 | my $sv0 = 0; | |
26 | my $sv1 = 0; | |
27 | for my $i (1..$n) { | |
28 | &$code(); | |
29 | $sv1 = sv_count(); | |
30 | $sv0 = $sv1 if $i == 1; | |
31 | } | |
32 | cmp_ok($sv1-$sv0, '<=', ($n-1)*$delta, @rest); | |
33 | } | |
34 | ||
1cac5c33 FC |
35 | # Like leak, but run a string eval instead. |
36 | # The code is used instead of the test name | |
2e880be7 FC |
37 | # if the name is absent. |
38 | sub eleak { | |
39 | my ($n,$delta,$code,@rest) = @_; | |
1cac5c33 | 40 | leak $n, $delta, sub { eval $code }, |
2e880be7 FC |
41 | @rest ? @rest : $code |
42 | } | |
43 | ||
8bd05d90 DM |
44 | # run some expression N times. The expr is concatenated N times and then |
45 | # evaled, ensuring that that there are no scope exits between executions. | |
46 | # If the number of SVs at the end of expr N is greater than (N-1)*delta at | |
47 | # the end of expr 1, we've got a leak | |
48 | # | |
49 | sub leak_expr { | |
50 | my ($n, $delta, $expr, @rest) = @_; | |
51 | my $sv0 = 0; | |
52 | my $sv1 = 0; | |
53 | my $true = 1; # avoid stuff being optimised away | |
54 | my $code1 = "($expr || \$true)"; | |
55 | my $code = "$code1 && (\$sv0 = sv_count())" . ("&& $code1" x 4) | |
56 | . " && (\$sv1 = sv_count())"; | |
57 | if (eval $code) { | |
58 | cmp_ok($sv1-$sv0, '<=', ($n-1)*$delta, @rest); | |
59 | } | |
60 | else { | |
61 | fail("eval @rest: $@"); | |
62 | } | |
63 | } | |
64 | ||
65 | ||
d97c33b5 DM |
66 | my @a; |
67 | ||
68 | leak(5, 0, sub {}, "basic check 1 of leak test infrastructure"); | |
69 | leak(5, 0, sub {push @a,1;pop @a}, "basic check 2 of leak test infrastructure"); | |
70 | leak(5, 1, sub {push @a,1;}, "basic check 3 of leak test infrastructure"); | |
459defa1 | 71 | |
38b1111c FC |
72 | # Fatal warnings |
73 | my $f = "use warnings FATAL =>"; | |
74 | my $all = "$f 'all';"; | |
38b1111c FC |
75 | eleak(2, 0, "$f 'deprecated'; qq|\\c\{|", 'qq|\c{| with fatal warnings'); |
76 | eleak(2, 0, "$f 'syntax'; qq|\\c`|", 'qq|\c`| with fatal warnings'); | |
77 | eleak(2, 0, "$all /\$\\ /", '/$\ / with fatal warnings'); | |
78 | eleak(2, 0, "$all s//\\1/", 's//\1/ with fatal warnings'); | |
79 | eleak(2, 0, "$all qq|\\i|", 'qq|\i| with fatal warnings'); | |
80 | eleak(2, 0, "$f 'digit'; qq|\\o{9}|", 'qq|\o{9}| with fatal warnings'); | |
81 | eleak(2, 0, "$f 'misc'; sub foo{} sub foo:lvalue", | |
82 | 'ignored :lvalue with fatal warnings'); | |
83 | eleak(2, 0, "no warnings; use feature ':all'; $f 'misc'; | |
84 | my sub foo{} sub foo:lvalue", | |
85 | 'ignored mysub :lvalue with fatal warnings'); | |
86 | eleak(2, 0, "no warnings; use feature ':all'; $all | |
87 | my sub foo{} sub foo:lvalue{}", | |
88 | 'fatal mysub redef warning'); | |
89 | eleak(2, 0, "$all sub foo{} sub foo{}", 'fatal sub redef warning'); | |
90 | eleak(2, 0, "$all *x=sub {}", | |
91 | 'fatal sub redef warning with sub-to-glob assignment'); | |
92 | eleak(2, 0, "$all *x=sub() {1}", | |
93 | 'fatal const sub redef warning with sub-to-glob assignment'); | |
94 | eleak(2, 0, "$all XS::APItest::newCONSTSUB(\\%main::=>name=>0=>1)", | |
95934569 | 95 | 'newCONSTSUB sub redefinition with fatal warnings'); |
38b1111c FC |
96 | eleak(2, 0, "$f 'misc'; my\$a,my\$a", 'double my with fatal warnings'); |
97 | eleak(2, 0, "$f 'misc'; our\$a,our\$a", 'double our with fatal warnings'); | |
98 | eleak(2, 0, "$f 'closure'; | |
99 | sub foo { my \$x; format=\n\@\n\$x\n.\n} write; ", | |
af32a010 | 100 | 'format closing over unavailable var with fatal warnings'); |
38b1111c FC |
101 | eleak(2, 0, "$all /(?{})?/ ", '(?{})? with fatal warnings'); |
102 | eleak(2, 0, "$all /(?{})+/ ", '(?{})+ with fatal warnings'); | |
103 | eleak(2, 0, "$all /[\\i]/ ", 'invalid charclass escape with fatal warns'); | |
104 | eleak(2, 0, "$all /[:foo:]/ ", '/[:foo:]/ with fatal warnings'); | |
105 | eleak(2, 0, "$all /[a-\\d]/ ", '[a-\d] char class with fatal warnings'); | |
106 | eleak(2, 0, "$all v111111111111111111111111111111111111111111111111", | |
107 | 'vstring num overflow with fatal warnings'); | |
38b1111c | 108 | |
e88567f2 | 109 | eleak(2, 0, 'sub{<*>}'); |
11ddfebc FC |
110 | # Use a random number of ops, so that the glob op does not reuse the same |
111 | # address each time, giving us false passes. | |
a1ba7ec6 | 112 | leak(2, 0, sub { eval '$x+'x(1 + rand() * 100) . '<*>'; }, |
11ddfebc | 113 | 'freeing partly iterated glob'); |
e88567f2 | 114 | |
110af908 FC |
115 | eleak(2, 0, 'goto sub {}', 'goto &sub in eval'); |
116 | eleak(2, 0, '() = sort { goto sub {} } 1,2', 'goto &sub in sort'); | |
117 | eleak(2, 0, '/(?{ goto sub {} })/', 'goto &sub in regexp'); | |
118 | ||
459defa1 DM |
119 | sub TIEARRAY { bless [], $_[0] } |
120 | sub FETCH { $_[0]->[$_[1]] } | |
121 | sub STORE { $_[0]->[$_[1]] = $_[2] } | |
122 | ||
123 | # local $tied_elem[..] leaks <20020502143736.N16831@dansat.data-plan.com>" | |
124 | { | |
125 | tie my @a, 'main'; | |
126 | leak(5, 0, sub {local $a[0]}, "local \$tied[0]"); | |
127 | } | |
128 | ||
5f7f7af5 FC |
129 | # Overloading |
130 | require overload; | |
131 | eleak(2, 0, "BEGIN{overload::constant integer=>sub{}} 1,1,1,1,1,1,1,1,1,1", | |
132 | '"too many errors" from constant overloading returning undef'); | |
133 | # getting this one to leak was complicated; we have to unset LOCALIZE_HH: | |
134 | eleak(2, 0, 'BEGIN{overload::constant integer=>sub{}; $^H &= ~ 0x00020000} | |
135 | 1,1,1,1,1,1,1,1,1,1', | |
136 | '"too many errors" from constant overloading with $^H sabotaged'); | |
137 | eleak(2, 0, "BEGIN{overload::constant integer=>sub{}; undef %^H} | |
138 | 1,1,1,1,1,1,1,1,1,1", | |
139 | '"too many errors" from constant overloading with %^H undefined'); | |
140 | ||
141 | ||
8bd05d90 DM |
142 | # [perl #74484] repeated tries leaked SVs on the tmps stack |
143 | ||
2e64971a | 144 | leak_expr(5, 0, q{"YYYYYa" =~ /.+?(a(.+?)|b)/ }, "trie leak"); |
b2a2a901 DM |
145 | |
146 | # [perl #48004] map/grep didn't free tmps till the end | |
147 | ||
148 | { | |
149 | # qr/1/ just creates tmps that are hopefully freed per iteration | |
150 | ||
151 | my $s; | |
152 | my @a; | |
153 | my @count = (0) x 4; # pre-allocate | |
154 | ||
155 | grep qr/1/ && ($count[$_] = sv_count()) && 99, 0..3; | |
156 | is(@count[3] - @count[0], 0, "void grep expr: no new tmps per iter"); | |
157 | grep { qr/1/ && ($count[$_] = sv_count()) && 99 } 0..3; | |
158 | is(@count[3] - @count[0], 0, "void grep block: no new tmps per iter"); | |
159 | ||
160 | $s = grep qr/1/ && ($count[$_] = sv_count()) && 99, 0..3; | |
161 | is(@count[3] - @count[0], 0, "scalar grep expr: no new tmps per iter"); | |
162 | $s = grep { qr/1/ && ($count[$_] = sv_count()) && 99 } 0..3; | |
163 | is(@count[3] - @count[0], 0, "scalar grep block: no new tmps per iter"); | |
164 | ||
165 | @a = grep qr/1/ && ($count[$_] = sv_count()) && 99, 0..3; | |
166 | is(@count[3] - @count[0], 0, "list grep expr: no new tmps per iter"); | |
167 | @a = grep { qr/1/ && ($count[$_] = sv_count()) && 99 } 0..3; | |
168 | is(@count[3] - @count[0], 0, "list grep block: no new tmps per iter"); | |
169 | ||
170 | ||
171 | map qr/1/ && ($count[$_] = sv_count()) && 99, 0..3; | |
172 | is(@count[3] - @count[0], 0, "void map expr: no new tmps per iter"); | |
173 | map { qr/1/ && ($count[$_] = sv_count()) && 99 } 0..3; | |
174 | is(@count[3] - @count[0], 0, "void map block: no new tmps per iter"); | |
175 | ||
176 | $s = map qr/1/ && ($count[$_] = sv_count()) && 99, 0..3; | |
177 | is(@count[3] - @count[0], 0, "scalar map expr: no new tmps per iter"); | |
178 | $s = map { qr/1/ && ($count[$_] = sv_count()) && 99 } 0..3; | |
179 | is(@count[3] - @count[0], 0, "scalar map block: no new tmps per iter"); | |
180 | ||
181 | @a = map qr/1/ && ($count[$_] = sv_count()) && 99, 0..3; | |
182 | is(@count[3] - @count[0], 3, "list map expr: one new tmp per iter"); | |
183 | @a = map { qr/1/ && ($count[$_] = sv_count()) && 99 } 0..3; | |
184 | is(@count[3] - @count[0], 3, "list map block: one new tmp per iter"); | |
185 | ||
186 | } | |
a50d6ed0 TC |
187 | |
188 | SKIP: | |
189 | { # broken by 304474c3, fixed by cefd5c7c, but didn't seem to cause | |
190 | # any other test failures | |
191 | # base test case from ribasushi (Peter Rabbitson) | |
192 | eval { require Scalar::Util; Scalar::Util->import("weaken"); 1; } | |
193 | or skip "no weaken", 1; | |
194 | my $weak; | |
195 | { | |
196 | $weak = my $in = {}; | |
197 | weaken($weak); | |
198 | my $out = { in => $in, in => undef } | |
199 | } | |
200 | ok(!$weak, "hash referenced weakened SV released"); | |
201 | } | |
64dc9714 | 202 | |
c9af70d5 FC |
203 | # prototype() errors |
204 | leak(2,0, sub { eval { prototype "CORE::fu" } }, 'prototype errors'); | |
205 | ||
64dc9714 DM |
206 | # RT #72246: rcatline memory leak on bad $/ |
207 | ||
208 | leak(2, 0, | |
209 | sub { | |
210 | my $f; | |
211 | open CATLINE, '<', \$f; | |
212 | local $/ = "\x{262E}"; | |
213 | my $str = "\x{2622}"; | |
214 | eval { $str .= <CATLINE> }; | |
215 | }, | |
216 | "rcatline leak" | |
217 | ); | |
a17b8556 JP |
218 | |
219 | { | |
220 | my $RE = qr/ | |
221 | (?: | |
222 | <(?<tag> | |
223 | \s* | |
224 | [^>\s]+ | |
225 | )> | |
226 | )?? | |
227 | /xis; | |
228 | ||
229 | "<html><body></body></html>" =~ m/$RE/gcs; | |
230 | ||
231 | leak(5, 0, sub { | |
232 | my $tag = $+{tag}; | |
233 | }, "named regexp captures"); | |
234 | } | |
bcb2959f | 235 | |
2e880be7 FC |
236 | eleak(2,0,'/[:]/'); |
237 | eleak(2,0,'/[\xdf]/i'); | |
f248b511 | 238 | eleak(2,0,'s![^/]!!'); |
3451022d FC |
239 | eleak(2,0,'/[pp]/'); |
240 | eleak(2,0,'/[[:ascii:]]/'); | |
e5fcdda9 FC |
241 | eleak(2,0,'/[[.zog.]]/'); |
242 | eleak(2,0,'/[.zog.]/'); | |
7f5d1fb2 KW |
243 | |
244 | # These can generate one ref count, but just once. | |
245 | eleak(4,1,'chr(0x100) =~ /[[:punct:]]/'); | |
246 | eleak(4,1,'chr(0x100) =~ /[[:^punct:]]/'); | |
247 | eleak(4,1,'chr(0x100) =~ /[[:word:]]/'); | |
248 | eleak(4,1,'chr(0x100) =~ /[[:^word:]]/'); | |
249 | ||
4aca0fe6 | 250 | eleak(2,0,'chr(0x100) =~ /\P{Assigned}/'); |
e1ff3a88 | 251 | leak(2,0,sub { /(??{})/ }, '/(??{})/'); |
2e880be7 | 252 | |
bcb2959f | 253 | leak(2,0,sub { !$^V }, '[perl #109762] version object in boolean context'); |
d97935e0 DM |
254 | |
255 | ||
256 | # [perl #114356] run-time rexexp with unchanging pattern got | |
257 | # inflated refcounts | |
1cac5c33 | 258 | eleak(2, 0, q{ my $x = "x"; "abc" =~ /$x/ for 1..5 }, '#114356'); |
d97935e0 | 259 | |
1cac5c33 | 260 | eleak(2, 0, 'sub', '"sub" with nothing following'); |
12d3c230 | 261 | eleak(2, 0, '+sub:a{}', 'anon subs with invalid attributes'); |
9ffcdca1 | 262 | eleak(2, 0, 'no warnings; sub a{1 1}', 'sub with syntax error'); |
4d2dfd15 | 263 | eleak(2, 0, 'no warnings; sub {1 1}', 'anon sub with syntax error'); |
8ca8859f FC |
264 | eleak(2, 0, 'no warnings; use feature ":all"; my sub a{1 1}', |
265 | 'my sub with syntax error'); | |
12d3c230 | 266 | |
1cdc9186 FC |
267 | # Reification (or lack thereof) |
268 | leak(2, 0, sub { sub { local $_[0]; shift }->(1) }, | |
269 | 'local $_[0] on surreal @_, followed by shift'); | |
270 | leak(2, 0, sub { sub { local $_[0]; \@_ }->(1) }, | |
271 | 'local $_[0] on surreal @_, followed by reification'); | |
272 | ||
47c8e7fe FC |
273 | # Syntax errors |
274 | eleak(2, 0, '"${<<END}" | |
275 | ', 'unterminated here-doc in quotes in multiline eval'); | |
276 | eleak(2, 0, '"${<<END | |
277 | }"', 'unterminated here-doc in multiline quotes in eval'); | |
1cac5c33 | 278 | leak(2, 0, sub { eval { do './op/svleak.pl' } }, |
2d85e411 | 279 | 'unterminated here-doc in file'); |
47c8e7fe FC |
280 | eleak(2, 0, 'tr/9-0//'); |
281 | eleak(2, 0, 'tr/a-z-0//'); | |
282 | eleak(2, 0, 'no warnings; nonexistent_function 33838', | |
a577af66 | 283 | 'bareword followed by number'); |
10002bc1 FC |
284 | eleak(2, 0, '//dd;'x20, '"too many errors" when parsing m// flags'); |
285 | eleak(2, 0, 's///dd;'x20, '"too many errors" when parsing s/// flags'); | |
1cac5c33 | 286 | eleak(2, 0, 'no warnings; 2 2;BEGIN{}', |
9eb48717 | 287 | 'BEGIN block after syntax error'); |
600beb2e FC |
288 | { |
289 | local %INC; # in case Errno is already loaded | |
290 | eleak(2, 0, 'no warnings; 2@!{', | |
291 | 'implicit "use Errno" after syntax error'); | |
292 | } | |
3ce3dcd9 | 293 | eleak(2, 0, "\"\$\0\356\"", 'qq containing $ <null> something'); |
3ac7ff8f | 294 | eleak(2, 0, 'END OF TERMS AND CONDITIONS', 'END followed by words'); |
14ca8ff4 | 295 | eleak(2, 0, "+ + +;qq|\\N{a}|"x10,'qq"\N{a}" after errors'); |
b6407c49 FC |
296 | eleak(2, 0, "qq|\\N{%}|", 'qq"\N{%}" (invalid charname)'); |
297 | eleak(2, 0, "qq|\\N{au}|;", 'qq"\N{invalid}"'); | |
38b1111c | 298 | eleak(2, 0, "qq|\\c|;"x10, '"too many errors" from qq"\c"'); |
38b1111c FC |
299 | eleak(2, 0, "qq|\\o|;"x10, '"too many errors" from qq"\o"'); |
300 | eleak(2, 0, "qq|\\x{|;"x10, '"too many errors" from qq"\x{"'); | |
301 | eleak(2, 0, "qq|\\N|;"x10, '"too many errors" from qq"\N"'); | |
302 | eleak(2, 0, "qq|\\N{|;"x10, '"too many errors" from qq"\N{"'); | |
303 | eleak(2, 0, "qq|\\N{U+GETG}|;"x10,'"too many errors" from qq"\N{U+JUNK}"'); | |
9e942bf5 | 304 | |
9fa29fa7 FC |
305 | |
306 | # [perl #114764] Attributes leak scalars | |
307 | leak(2, 0, sub { eval 'my $x : shared' }, 'my $x :shared used to leak'); | |
895cdc83 | 308 | |
c25611d5 FC |
309 | eleak(2, 0, 'ref: 1', 'labels'); |
310 | ||
895cdc83 FC |
311 | # Tied hash iteration was leaking if the hash was freed before itera- |
312 | # tion was over. | |
313 | package t { | |
314 | sub TIEHASH { bless [] } | |
315 | sub FIRSTKEY { 0 } | |
316 | } | |
317 | leak(2, 0, sub { | |
318 | my $h = {}; | |
319 | tie %$h, t; | |
320 | each %$h; | |
321 | undef $h; | |
322 | }, 'tied hash iteration does not leak'); | |
9c744f4f | 323 | |
33b889b0 RZ |
324 | package explosive_scalar { |
325 | sub TIESCALAR { my $self = shift; bless [undef, {@_}], $self } | |
326 | sub FETCH { die 'FETCH' if $_[0][1]{FETCH}; $_[0][0] } | |
327 | sub STORE { die 'STORE' if $_[0][1]{STORE}; $_[0][0] = $_[1] } | |
328 | } | |
329 | tie my $die_on_fetch, 'explosive_scalar', FETCH => 1; | |
330 | ||
39984de3 FC |
331 | # List assignment was leaking when assigning explosive scalars to |
332 | # aggregates. | |
9c744f4f | 333 | leak(2, 0, sub { |
33b889b0 RZ |
334 | eval {%a = ($die_on_fetch, 0)}; # key |
335 | eval {%a = (0, $die_on_fetch)}; # value | |
336 | eval {%a = ($die_on_fetch, $die_on_fetch)}; # both | |
499ace3b | 337 | eval {%a = ($die_on_fetch)}; # key, odd elements |
9c744f4f | 338 | }, 'hash assignment does not leak'); |
39984de3 | 339 | leak(2, 0, sub { |
33b889b0 RZ |
340 | eval {@a = ($die_on_fetch)}; |
341 | eval {($die_on_fetch, $b) = ($b, $die_on_fetch)}; | |
342 | # restore | |
343 | tie $die_on_fetch, 'explosive_scalar', FETCH => 1; | |
39984de3 | 344 | }, 'array assignment does not leak'); |
9c744f4f | 345 | |
0db511c0 FC |
346 | # [perl #107000] |
347 | package hhtie { | |
348 | sub TIEHASH { bless [] } | |
349 | sub STORE { $_[0][0]{$_[1]} = $_[2] } | |
350 | sub FETCH { die if $explosive; $_[0][0]{$_[1]} } | |
351 | sub FIRSTKEY { keys %{$_[0][0]}; each %{$_[0][0]} } | |
352 | sub NEXTKEY { each %{$_[0][0]} } | |
353 | } | |
1cac5c33 | 354 | leak(2, 0, sub { |
0db511c0 FC |
355 | eval q` |
356 | BEGIN { | |
357 | $hhtie::explosive = 0; | |
358 | tie %^H, hhtie; | |
359 | $^H{foo} = bar; | |
360 | $hhtie::explosive = 1; | |
361 | } | |
362 | { 1; } | |
363 | `; | |
364 | }, 'hint-hash copying does not leak'); | |
33b889b0 RZ |
365 | |
366 | package explosive_array { | |
367 | sub TIEARRAY { bless [[], {}], $_[0] } | |
368 | sub FETCH { die if $_[0]->[1]{FETCH}; $_[0]->[0][$_[1]] } | |
369 | sub FETCHSIZE { die if $_[0]->[1]{FETCHSIZE}; scalar @{ $_[0]->[0] } } | |
370 | sub STORE { die if $_[0]->[1]{STORE}; $_[0]->[0][$_[1]] = $_[2] } | |
371 | sub CLEAR { die if $_[0]->[1]{CLEAR}; @{$_[0]->[0]} = () } | |
372 | sub EXTEND { die if $_[0]->[1]{EXTEND}; return } | |
373 | sub explode { my $self = shift; $self->[1] = {@_} } | |
374 | } | |
375 | ||
376 | leak(2, 0, sub { | |
377 | tie my @a, 'explosive_array'; | |
378 | tied(@a)->explode( STORE => 1 ); | |
379 | my $x = 0; | |
380 | eval { @a = ($x) }; | |
381 | }, 'explosive array assignment does not leak'); | |
382 | ||
383 | leak(2, 0, sub { | |
384 | my ($a, $b); | |
385 | eval { warn $die_on_fetch }; | |
386 | }, 'explosive warn argument'); | |
387 | ||
388 | leak(2, 0, sub { | |
389 | my $foo = sub { return $die_on_fetch }; | |
390 | my $res = eval { $foo->() }; | |
391 | my @res = eval { $foo->() }; | |
392 | }, 'function returning explosive does not leak'); | |
393 | ||
394 | leak(2, 0, sub { | |
395 | my $res = eval { {$die_on_fetch, 0} }; | |
396 | $res = eval { {0, $die_on_fetch} }; | |
397 | }, 'building anon hash with explosives does not leak'); | |
398 | ||
399 | leak(2, 0, sub { | |
3ed356df FC |
400 | my $res = eval { [$die_on_fetch] }; |
401 | }, 'building anon array with explosives does not leak'); | |
402 | ||
403 | leak(2, 0, sub { | |
33b889b0 RZ |
404 | my @a; |
405 | eval { push @a, $die_on_fetch }; | |
406 | }, 'pushing exploding scalar does not leak'); | |
ddac780e | 407 | |
644ac3a8 FC |
408 | leak(2, 0, sub { |
409 | eval { push @-, '' }; | |
410 | }, 'pushing onto read-only array does not leak'); | |
411 | ||
ddac780e FC |
412 | |
413 | # Run-time regexp code blocks | |
414 | { | |
2ac13048 FC |
415 | use re 'eval'; |
416 | my @tests = ('[(?{})]','(?{})'); | |
ddac780e | 417 | for my $t (@tests) { |
1cac5c33 | 418 | leak(2, 0, sub { |
ddac780e FC |
419 | / $t/; |
420 | }, "/ \$x/ where \$x is $t does not leak"); | |
1cac5c33 | 421 | leak(2, 0, sub { |
ddac780e FC |
422 | /(?{})$t/; |
423 | }, "/(?{})\$x/ where \$x is $t does not leak"); | |
424 | } | |
425 | } | |
104c40b0 FC |
426 | |
427 | ||
428 | { | |
429 | use warnings FATAL => 'all'; | |
430 | leak(2, 0, sub { | |
d861347e | 431 | no warnings 'once'; |
104c40b0 FC |
432 | eval { printf uNopened 42 }; |
433 | }, 'printfing to bad handle under fatal warnings does not leak'); | |
c7bd8b84 FC |
434 | open my $fh, ">", \my $buf; |
435 | leak(2, 0, sub { | |
436 | eval { printf $fh chr 2455 }; | |
437 | }, 'wide fatal warning does not make printf leak'); | |
438 | close $fh or die $!; | |
104c40b0 | 439 | } |
1e5f02b3 FC |
440 | |
441 | ||
442 | leak(2,0,sub{eval{require untohunothu}}, 'requiring nonexistent module'); |