1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
|
#!./perl -w
BEGIN {
chdir 't' if -d 't';
@INC = qw(../lib lib);
}
BEGIN { require "./test.pl"; }
# This test depends on t/lib/Devel/switchd*.pm.
plan(tests => 19);
my $r;
my $filename = tempfile();
SKIP: {
open my $f, ">$filename"
or skip( "Can't write temp file $filename: $!" );
print $f <<'__SWDTEST__';
package Bar;
sub bar { $_[0] * $_[0] }
package Foo;
sub foo {
my $s;
$s += Bar::bar($_) for 1..$_[0];
}
package main;
Foo::foo(3);
__SWDTEST__
close $f;
$| = 1; # Unbufferize.
$r = runperl(
switches => [ '-Ilib', '-f', '-d:switchd' ],
progfile => $filename,
args => ['3'],
);
like($r,
qr/^sub<Devel::switchd::import>;import<Devel::switchd>;DB<main,$::tempfile_regexp,9>;sub<Foo::foo>;DB<Foo,$::tempfile_regexp,5>;DB<Foo,$::tempfile_regexp,6>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;$/,
'Got debugging output: 1');
$r = runperl(
switches => [ '-Ilib', '-f', '-d:switchd=a,42' ],
progfile => $filename,
args => ['4'],
);
like($r,
qr/^sub<Devel::switchd::import>;import<Devel::switchd a 42>;DB<main,$::tempfile_regexp,9>;sub<Foo::foo>;DB<Foo,$::tempfile_regexp,5>;DB<Foo,$::tempfile_regexp,6>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;$/,
'Got debugging output: 2');
$r = runperl(
switches => [ '-Ilib', '-f', '-d:-switchd=a,42' ],
progfile => $filename,
args => ['4'],
);
like($r,
qr/^sub<Devel::switchd::unimport>;unimport<Devel::switchd a 42>;DB<main,$::tempfile_regexp,9>;sub<Foo::foo>;DB<Foo,$::tempfile_regexp,5>;DB<Foo,$::tempfile_regexp,6>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;sub<Bar::bar>;DB<Bar,$::tempfile_regexp,2>;$/,
'Got debugging output: 3');
}
# [perl #71806]
cmp_ok(
runperl( # less is useful for something :-)
switches => [ '"-Mless ++INC->{q-Devel/_.pm-}"' ],
progs => [
'#!perl -d:_',
'sub DB::DB{} print scalar @{q/_</.__FILE__}',
],
),
'>',
0,
'The debugger can see the lines of the main program under #!perl -d',
);
like
runperl(
switches => [ '"-Mless ++INC->{q-Devel/_.pm-}"' ],
progs => [
'#!perl -d:_',
'sub DB::DB{} print line=>__LINE__',
],
),
qr/line2/,
'#!perl -d:whatever does not throw line numbers off';
# [perl #48332]
like(
runperl(
switches => [ '-Ilib', '-d:switchd_empty' ],
progs => [
'sub foo { print qq _1\n_ }',
'*old_foo = \&foo;',
'*foo = sub { print qq _2\n_ };',
'old_foo(); foo();',
],
),
qr "1\r?\n2\r?\n",
'Subroutine redefinition works in the debugger [perl #48332]',
);
# [rt.cpan.org #69862]
like(
runperl(
switches => [ '-Ilib', '-d:switchd_empty' ],
progs => [
'sub DB::sub { goto &$DB::sub }',
'sub foo { print qq _1\n_ }',
'sub bar { print qq _2\n_ }',
'delete $::{foo}; eval { foo() };',
'my $bar = *bar; undef *bar; eval { &$bar };',
],
),
qr "1\r?\n2\r?\n",
'Subroutines no longer found under their names can be called',
);
# [rt.cpan.org #69862]
like(
runperl(
switches => [ '-Ilib', '-d:switchd_empty' ],
progs => [
'sub DB::sub { goto &$DB::sub }',
'sub foo { goto &bar::baz; }',
'sub bar::baz { print qq _ok\n_ }',
'delete $::{bar::::};',
'foo();',
],
),
qr "ok\r?\n",
'No crash when calling orphaned subroutine via goto &',
);
# test when DB::DB is seen but not defined [perl #114990]
like(
runperl(
switches => [ '-Ilib', '-d:nodb' ],
prog => [ '1' ],
stderr => 1,
),
qr/^No DB::DB routine defined/,
"No crash when *DB::DB exists but not &DB::DB",
);
like(
runperl(
switches => [ '-Ilib' ],
prog => 'sub DB::DB; BEGIN { $^P = 0x22; } for(0..9){ warn }',
stderr => 1,
),
qr/^No DB::DB routine defined/,
"No crash when &DB::DB exists but isn't actually defined",
);
# or seen and defined later
is(
runperl(
switches => [ '-Ilib', '-d:nodb' ], # nodb.pm contains *DB::DB...if 0
prog => 'warn; sub DB::DB { print qq-ok\n-; exit }',
stderr => 1,
),
"ok\n",
"DB::DB works after '*DB::DB if 0'",
);
# [perl #115742] Recursive DB::DB clobbering its own pad
like(
runperl(
switches => [ '-Ilib' ],
progs => [ split "\n", <<'='
BEGIN {
$^P = 0x22;
}
package DB;
sub DB {
my $x = 42;
return if $__++;
$^D |= 1 << 30; # allow recursive calls
main::foo();
print $x//q-u-, qq-\n-;
}
package main;
chop;
sub foo { chop; }
=
],
stderr => 1,
),
qr/42/,
"Recursive DB::DB does not clobber its own pad",
);
# [perl #118627]
like(
runperl(
switches => [ '-Ilib', '-d:switchd_empty' ],
prog => 'print @{q|_<-e|}',
),
qr "use Devel::switchd_empty;(?:BEGIN|\r?\nprint)",
# miniperl tacks a BEGIN block on to the same line
'Copy on write does not mangle ${"_<-e"}[0] [perl #118627]',
);
# PERL5DB with embedded newlines
{
local $ENV{PERL5DB} = "sub DB::DB{}\nwarn";
is(
runperl(
switches => [ '-Ilib', '-ld' ],
prog => 'warn',
stderr => 1
),
"Warning: something's wrong.\n"
."Warning: something's wrong at -e line 1.\n",
'PERL5DB with embedded newlines',
);
}
# test that DB::goto works
is(
runperl(
switches => [ '-Ilib', '-d:switchd_goto' ],
prog => 'sub baz { print qq|hello;\n| } sub foo { goto &baz } foo()',
stderr => 1,
),
"goto<main::baz>;hello;\n",
"DB::goto"
);
# Test that %DB::lsub is not vivified
is(
runperl(
switches => [ '-Ilib', '-d:switchd_empty' ],
progs => ['sub DB::sub {} sub foo : lvalue {} foo();',
'print qq-ok\n- unless defined *DB::lsub{HASH}'],
),
"ok\n",
"%DB::lsub is not vivified"
);
# Test setting of breakpoints without *DB::dbline aliased
is(
runperl(
switches => [ '-Ilib', '-d:nodb' ],
progs => [ split "\n",
'sub DB::DB {
$DB::single = 0, return if $DB::single; print qq[ok\n]; exit
}
${q(_<).__FILE__}{6} = 1; # set a breakpoint
sub foo {
die; # line 6
}
foo();
'
],
stderr => 1
),
"ok\n",
"setting breakpoints without *DB::dbline aliased"
);
# [perl #121255]
# Check that utf8 caches are flushed when $DB::sub is set
is(
runperl(
switches => [ '-Ilib', '-d:switchd_empty' ],
progs => [ split "\n",
'sub DB::sub{length($DB::sub); goto &$DB::sub}
${^UTF8CACHE}=-1;
print
eval qq|sub oo\x{25f} { 42 }
sub ooooo\x{25f} { oo\x{25f}() }
ooooo\x{25f}()|
|| $@,
qq|\n|;
'
],
stderr => 1
),
"42\n",
'UTF8 length caches on $DB::sub are flushed'
);
# [perl #122771] -d conflicting with sort optimisations
is(
runperl(
switches => [ '-Ilib', '-d:switchd_empty' ],
prog => 'BEGIN { $^P &= ~0x4 } sort { $$b <=> $$a } (); print qq-42\n-',
),
"42\n",
'-d does not conflict with sort optimisations'
);
|
