Commit | Line | Data |
---|---|---|
6b78add2 RGS |
1 | #!./perl |
2 | ||
3 | BEGIN { | |
4 | chdir 't' if -d 't'; | |
5 | @INC = qw(../lib); | |
6 | } | |
7 | ||
768fd157 | 8 | BEGIN { require "./test.pl"; } |
6b78add2 | 9 | |
211a4342 | 10 | plan( tests => 50 ); |
6b78add2 RGS |
11 | |
12 | # Used to segfault (bug #15479) | |
d963bf01 | 13 | fresh_perl_like( |
fdf38e49 | 14 | 'delete $::{STDERR}; my %a = ""', |
d963bf01 | 15 | qr/Odd number of elements in hash assignment at - line 1\./, |
6b78add2 RGS |
16 | { switches => [ '-w' ] }, |
17 | 'delete $::{STDERR} and print a warning', | |
18 | ); | |
b862623f RGS |
19 | |
20 | # Used to segfault | |
21 | fresh_perl_is( | |
22 | 'BEGIN { $::{"X::"} = 2 }', | |
23 | '', | |
24 | { switches => [ '-w' ] }, | |
25 | q(Insert a non-GV in a stash, under warnings 'once'), | |
26 | ); | |
adc51b97 | 27 | |
218fa151 FC |
28 | # Used to segfault, too |
29 | SKIP: { | |
30 | skip_if_miniperl('requires XS'); | |
799fd3b9 | 31 | fresh_perl_like( |
218fa151 | 32 | 'sub foo::bar{}; $mro::{get_mro}=*foo::bar; undef %foo::; require mro', |
799fd3b9 | 33 | qr/^Subroutine mro::get_mro redefined at /, |
218fa151 FC |
34 | { switches => [ '-w' ] }, |
35 | q(Defining an XSUB over an existing sub with no stash under warnings), | |
36 | ); | |
37 | } | |
38 | ||
adc51b97 RGS |
39 | package tyrone::slothrop; |
40 | $bongo::shaftsbury::scalar = 1; | |
aec56d99 NC |
41 | |
42 | package main; | |
43 | ||
44 | # Used to warn | |
45 | # Unbalanced string table refcount: (1) for "A::" during global destruction. | |
46 | # for ithreads. | |
47 | { | |
48 | local $ENV{PERL_DESTRUCT_LEVEL} = 2; | |
49 | fresh_perl_is( | |
fdf38e49 | 50 | 'package A::B; sub a { // }; %A::=""', |
aec56d99 | 51 | '', |
20e5bab4 | 52 | {}, |
aec56d99 | 53 | ); |
a420522d | 54 | # Variant of the above which creates an object that persists until global |
fdf38e49 NC |
55 | # destruction, and triggers an assertion failure prior to change |
56 | # a420522db95b7762 | |
a420522d | 57 | fresh_perl_is( |
fdf38e49 | 58 | 'use Exporter; package A; sub a { // }; delete $::{$_} for keys %::', |
a420522d | 59 | '', |
20e5bab4 | 60 | {}, |
a420522d | 61 | ); |
aec56d99 | 62 | } |
ce10b5d1 RGS |
63 | |
64 | # now tests with strictures | |
65 | ||
d018fae5 BM |
66 | { |
67 | use strict; | |
d018fae5 BM |
68 | ok( !exists $pig::{bodine}, q(referencing a non-existent stash element doesn't produce stricture errors) ); |
69 | } | |
70 | ||
71 | SKIP: { | |
1fda6ccf | 72 | eval { require B; 1 } or skip "no B", 29; |
d018fae5 BM |
73 | |
74 | *b = \&B::svref_2object; | |
75 | my $CVf_ANON = B::CVf_ANON(); | |
76 | ||
77 | my $sub = do { | |
78 | package one; | |
79 | \&{"one"}; | |
80 | }; | |
81 | delete $one::{one}; | |
82 | my $gv = b($sub)->GV; | |
83 | ||
bbce3ca6 | 84 | object_ok( $gv, "B::GV", "deleted stash entry leaves CV with valid GV"); |
d018fae5 BM |
85 | is( b($sub)->CvFLAGS & $CVf_ANON, $CVf_ANON, "...and CVf_ANON set"); |
86 | is( eval { $gv->NAME }, "__ANON__", "...and an __ANON__ name"); | |
87 | is( eval { $gv->STASH->NAME }, "one", "...but leaves stash intact"); | |
88 | ||
89 | $sub = do { | |
90 | package two; | |
91 | \&{"two"}; | |
92 | }; | |
93 | %two:: = (); | |
94 | $gv = b($sub)->GV; | |
95 | ||
bbce3ca6 | 96 | object_ok( $gv, "B::GV", "cleared stash leaves CV with valid GV"); |
d018fae5 BM |
97 | is( b($sub)->CvFLAGS & $CVf_ANON, $CVf_ANON, "...and CVf_ANON set"); |
98 | is( eval { $gv->NAME }, "__ANON__", "...and an __ANON__ name"); | |
2d0d1ecc | 99 | is( eval { $gv->STASH->NAME }, "two", "...but leaves stash intact"); |
d018fae5 BM |
100 | |
101 | $sub = do { | |
102 | package three; | |
103 | \&{"three"}; | |
104 | }; | |
105 | undef %three::; | |
106 | $gv = b($sub)->GV; | |
107 | ||
bbce3ca6 | 108 | object_ok( $gv, "B::GV", "undefed stash leaves CV with valid GV"); |
d018fae5 BM |
109 | is( b($sub)->CvFLAGS & $CVf_ANON, $CVf_ANON, "...and CVf_ANON set"); |
110 | is( eval { $gv->NAME }, "__ANON__", "...and an __ANON__ name"); | |
111 | is( eval { $gv->STASH->NAME }, "__ANON__", "...and an __ANON__ stash"); | |
112 | ||
803f2748 DM |
113 | my $sub = do { |
114 | package four; | |
115 | sub { 1 }; | |
116 | }; | |
117 | %four:: = (); | |
118 | ||
119 | my $gv = B::svref_2object($sub)->GV; | |
120 | ok($gv->isa(q/B::GV/), "cleared stash leaves anon CV with valid GV"); | |
121 | ||
122 | my $st = eval { $gv->STASH->NAME }; | |
fecc7607 | 123 | is($st, q/four/, "...but leaves the stash intact"); |
803f2748 DM |
124 | |
125 | my $sub = do { | |
126 | package five; | |
127 | sub { 1 }; | |
128 | }; | |
129 | undef %five::; | |
130 | ||
131 | $gv = B::svref_2object($sub)->GV; | |
132 | ok($gv->isa(q/B::GV/), "undefed stash leaves anon CV with valid GV"); | |
133 | ||
134 | $st = eval { $gv->STASH->NAME }; | |
135 | { local $TODO = 'STASHES not anonymized'; | |
136 | is($st, q/__ANON__/, "...and an __ANON__ stash"); | |
d018fae5 | 137 | } |
803f2748 | 138 | |
57f45d7b FC |
139 | my $sub = do { |
140 | package six; | |
141 | \&{"six"} | |
142 | }; | |
143 | my $stash_glob = delete $::{"six::"}; | |
144 | # Now free the GV while the stash still exists (though detached) | |
145 | delete $$stash_glob{"six"}; | |
146 | $gv = B::svref_2object($sub)->GV; | |
147 | ok($gv->isa(q/B::GV/), | |
148 | 'anonymised CV whose stash is detached still has a GV'); | |
149 | is $gv->STASH->NAME, '__ANON__', | |
150 | 'CV anonymised when its stash is detached becomes __ANON__::__ANON__'; | |
151 | ||
803f2748 | 152 | # CvSTASH should be null on a named sub if the stash has been deleted |
4c74a7df DM |
153 | { |
154 | package FOO; | |
155 | sub foo {} | |
156 | my $rfoo = \&foo; | |
157 | package main; | |
158 | delete $::{'FOO::'}; | |
159 | my $cv = B::svref_2object($rfoo); | |
803f2748 | 160 | # (is there a better way of testing for NULL ?) |
4c74a7df DM |
161 | my $stash = $cv->STASH; |
162 | like($stash, qr/B::SPECIAL/, "NULL CvSTASH on named sub"); | |
163 | } | |
803f2748 DM |
164 | |
165 | # on glob reassignment, orphaned CV should have anon CvGV | |
166 | ||
167 | { | |
168 | my $r; | |
169 | eval q[ | |
170 | package FOO2; | |
171 | sub f{}; | |
172 | $r = \&f; | |
173 | *f = sub {}; | |
174 | ]; | |
175 | delete $FOO2::{f}; | |
176 | my $cv = B::svref_2object($r); | |
177 | my $gv = $cv->GV; | |
178 | ok($gv->isa(q/B::GV/), "orphaned CV has valid GV"); | |
179 | is($gv->NAME, '__ANON__', "orphaned CV has anon GV"); | |
180 | } | |
181 | ||
182 | # deleting __ANON__ glob shouldn't break things | |
183 | ||
184 | { | |
185 | package FOO3; | |
186 | sub named {}; | |
187 | my $anon = sub {}; | |
188 | my $named = eval q[\&named]; | |
189 | package main; | |
190 | delete $FOO3::{named}; # make named anonymous | |
191 | ||
192 | delete $FOO3::{__ANON__}; # whoops! | |
193 | my ($cv,$gv); | |
194 | $cv = B::svref_2object($named); | |
195 | $gv = $cv->GV; | |
196 | ok($gv->isa(q/B::GV/), "ex-named CV has valid GV"); | |
197 | is($gv->NAME, '__ANON__', "ex-named CV has anon GV"); | |
198 | ||
199 | $cv = B::svref_2object($anon); | |
200 | $gv = $cv->GV; | |
201 | ok($gv->isa(q/B::GV/), "anon CV has valid GV"); | |
202 | is($gv->NAME, '__ANON__', "anon CV has anon GV"); | |
203 | } | |
ce057ba8 NC |
204 | |
205 | { | |
206 | my $r; | |
207 | { | |
208 | package bloop; | |
209 | ||
210 | BEGIN { | |
211 | $r = \&main::whack; | |
212 | } | |
213 | } | |
214 | ||
215 | my $br = B::svref_2object($r); | |
216 | is ($br->STASH->NAME, 'bloop', | |
217 | 'stub records the package it was compiled in'); | |
218 | # Arguably this shouldn't quite be here, but it's easy to add it | |
219 | # here, and tricky to figure out a different good place for it. | |
220 | like ($br->FILE, qr/stash/i, | |
221 | 'stub records the file it was compiled in'); | |
222 | ||
223 | # We need to take this reference "late", after the subroutine is | |
224 | # defined. | |
225 | $br = B::svref_2object(eval 'sub whack {}; \&whack'); | |
226 | die $@ if $@; | |
227 | ||
228 | is ($br->STASH->NAME, 'main', | |
229 | 'definition overrides the package it was compiled in'); | |
230 | like ($br->FILE, qr/eval/, | |
231 | 'definition overrides the file it was compiled in'); | |
232 | } | |
d018fae5 | 233 | } |
cfc1e951 | 234 | |
53226d62 FC |
235 | # [perl #58530] |
236 | fresh_perl_is( | |
237 | 'sub foo { 1 }; use overload q/""/ => \&foo;' . | |
238 | 'delete $main::{foo}; bless []', | |
239 | "", | |
240 | {}, | |
241 | "no segfault with overload/deleted stash entry [#58530]", | |
242 | ); | |
243 | ||
cfc1e951 DM |
244 | # make sure having a sub called __ANON__ doesn't confuse perl. |
245 | ||
246 | { | |
247 | my $c; | |
248 | sub __ANON__ { $c = (caller(0))[3]; } | |
249 | __ANON__(); | |
250 | is ($c, 'main::__ANON__', '__ANON__ sub called ok'); | |
251 | } | |
78b79c77 | 252 | |
6116ba54 | 253 | |
78b79c77 FC |
254 | # Stashes that are effectively renamed |
255 | { | |
256 | package rile; | |
257 | ||
6116ba54 DM |
258 | use Config; |
259 | ||
78b79c77 FC |
260 | my $obj = bless []; |
261 | my $globref = \*tat; | |
262 | ||
263 | # effectively rename a stash | |
264 | *slin:: = *rile::; *rile:: = *zor::; | |
265 | ||
266 | ::is *$globref, "*rile::tat", | |
267 | 'globs stringify the same way when stashes are moved'; | |
268 | ::is ref $obj, "rile", | |
269 | 'ref() returns the same thing when an object’s stash is moved'; | |
270 | ::like "$obj", qr "^rile=ARRAY\(0x[\da-f]+\)\z", | |
271 | 'objects stringify the same way when their stashes are moved'; | |
2b2e8705 | 272 | ::is eval '__PACKAGE__', 'rile', |
1e35da33 | 273 | '__PACKAGE__ returns the same when the current stash is moved'; |
78b79c77 FC |
274 | |
275 | # Now detach it completely from the symtab, making it effect- | |
276 | # ively anonymous | |
277 | my $life_raft = \%slin::; | |
278 | *slin:: = *zor::; | |
279 | ||
280 | ::is *$globref, "*rile::tat", | |
281 | 'globs stringify the same way when stashes are detached'; | |
282 | ::is ref $obj, "rile", | |
283 | 'ref() returns the same thing when an object’s stash is detached'; | |
284 | ::like "$obj", qr "^rile=ARRAY\(0x[\da-f]+\)\z", | |
285 | 'objects stringify the same way when their stashes are detached'; | |
9343f4cf | 286 | ::is eval '__PACKAGE__', 'rile', |
1e35da33 | 287 | '__PACKAGE__ returns the same when the current stash is detached'; |
78b79c77 FC |
288 | } |
289 | ||
2d0d1ecc FC |
290 | # Setting the name during undef %stash:: should have no effect. |
291 | { | |
292 | my $glob = \*Phoo::glob; | |
293 | sub o::DESTROY { eval '++$Phoo::bar' } | |
294 | no strict 'refs'; | |
295 | ${"Phoo::thing1"} = bless [], "o"; | |
296 | undef %Phoo::; | |
297 | is "$$glob", "*__ANON__::glob", | |
298 | "setting stash name during undef has no effect"; | |
299 | } | |
78b79c77 | 300 | |
088225fd FC |
301 | # [perl #88134] incorrect package structure |
302 | { | |
303 | package Bear::; | |
304 | sub baz{1} | |
305 | package main; | |
306 | ok eval { Bear::::baz() }, | |
307 | 'packages ending with :: are self-consistent'; | |
308 | } | |
46c0ec20 FC |
309 | |
310 | # [perl #88138] ' not equivalent to :: before a null | |
311 | ${"a'\0b"} = "c"; | |
312 | is ${"a::\0b"}, "c", "' is equivalent to :: before a null"; | |
03d9f026 FC |
313 | |
314 | # [perl #101486] Clobbering the current package | |
315 | ok eval ' | |
316 | package Do; | |
317 | BEGIN { *Do:: = *Re:: } | |
318 | sub foo{}; | |
319 | 1 | |
320 | ', 'no crashing or errors when clobbering the current package'; | |
211a4342 FC |
321 | |
322 | # Bareword lookup should not vivify stashes | |
323 | is runperl( | |
324 | prog => | |
325 | 'sub foo { print shift, qq-\n- } SUPER::foo bar if 0; foo SUPER', | |
326 | stderr => 1, | |
327 | ), | |
328 | "SUPER\n", | |
329 | 'bareword lookup does not vivify stashes'; |