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
|
#!./perl
#line 3 warn.t
BEGIN {
chdir 't' if -d 't';
require './test.pl'; require './charset_tools.pl';
set_up_inc('../lib');
}
plan 33;
my @warnings;
my $wa = []; my $ea = [];
$SIG{__WARN__} = sub { push @warnings, $_[0] };
@warnings = ();
$@ = "";
warn "foo\n";
ok @warnings==1 && $warnings[0] eq "foo\n";
@warnings = ();
$@ = "";
warn "foo", "bar\n";
ok @warnings==1 && $warnings[0] eq "foobar\n";
@warnings = ();
$@ = "";
warn "foo";
ok @warnings==1 && $warnings[0] eq "foo at warn.t line 28.\n";
@warnings = ();
$@ = "";
warn $wa;
ok @warnings==1 && ref($warnings[0]) eq "ARRAY" && $warnings[0] == $wa;
@warnings = ();
$@ = "";
warn "";
ok @warnings==1 &&
$warnings[0] eq "Warning: something's wrong at warn.t line 38.\n";
@warnings = ();
$@ = "";
warn;
ok @warnings==1 &&
$warnings[0] eq "Warning: something's wrong at warn.t line 44.\n";
@warnings = ();
$@ = "ERR\n";
warn "foo\n";
ok @warnings==1 && $warnings[0] eq "foo\n";
@warnings = ();
$@ = "ERR\n";
warn "foo", "bar\n";
ok @warnings==1 && $warnings[0] eq "foobar\n";
@warnings = ();
$@ = "ERR\n";
warn "foo";
ok @warnings==1 && $warnings[0] eq "foo at warn.t line 60.\n";
@warnings = ();
$@ = "ERR\n";
warn $wa;
ok @warnings==1 && ref($warnings[0]) eq "ARRAY" && $warnings[0] == $wa;
@warnings = ();
$@ = "ERR\n";
warn "";
ok @warnings==1 &&
$warnings[0] eq "ERR\n\t...caught at warn.t line 70.\n";
@warnings = ();
$@ = "ERR\n";
warn;
ok @warnings==1 &&
$warnings[0] eq "ERR\n\t...caught at warn.t line 76.\n";
@warnings = ();
$@ = $ea;
warn "foo\n";
ok @warnings==1 && $warnings[0] eq "foo\n";
@warnings = ();
$@ = $ea;
warn "foo", "bar\n";
ok @warnings==1 && $warnings[0] eq "foobar\n";
@warnings = ();
$@ = $ea;
warn "foo";
ok @warnings==1 && $warnings[0] eq "foo at warn.t line 92.\n";
@warnings = ();
$@ = $ea;
warn $wa;
ok @warnings==1 && ref($warnings[0]) eq "ARRAY" && $warnings[0] == $wa;
@warnings = ();
$@ = $ea;
warn "";
ok @warnings==1 && ref($warnings[0]) eq "ARRAY" && $warnings[0] == $ea;
@warnings = ();
$@ = $ea;
warn;
ok @warnings==1 && ref($warnings[0]) eq "ARRAY" && $warnings[0] == $ea;
fresh_perl_like(
'
$a = "\xee\n";
print STDERR $a; warn $a;
utf8::upgrade($a);
print STDERR $a; warn $a;
',
qr/^\xee(?:\r?\n\xee){3}/,
{ switches => [ "-C0" ] },
'warn emits logical characters, not internal bytes [perl #45549]'
);
SKIP: {
skip_if_miniperl('miniperl ignores -C', 1);
$ee = uni_to_native("\xee");
$bytes = byte_utf8a_to_utf8n("\xc3\xae");
fresh_perl_like(
"
\$a = \"$ee\n\";
print STDERR \$a; warn \$a;
utf8::upgrade(\$a);
print STDERR \$a; warn \$a;
",
qr/^$bytes(?:\r?\n$bytes){3}/,
{ switches => ['-CE'] },
'warn respects :utf8 layer'
);
}
$bytes = byte_utf8a_to_utf8n("\xc4\xac");
fresh_perl_like(
'warn chr 300',
qr/^Wide character in warn .*\n$bytes at /,
{ switches => [ "-C0" ] },
'Wide character in warn (not print)'
);
fresh_perl_like(
'warn []',
qr/^ARRAY\(0x[\da-f]+\) at /a,
{ },
'warn stringifies in the absence of $SIG{__WARN__}'
);
use Tie::Scalar;
tie $@, "Tie::StdScalar";
$@ = "foo\n";
@warnings = ();
warn;
is @warnings, 1;
like $warnings[0], qr/^foo\n\t\.\.\.caught at warn\.t /,
'...caught is appended to tied $@';
$@ = \$_;
@warnings = ();
{
local *{ref(tied $@) . "::STORE"} = sub {};
undef $@;
}
warn;
is @warnings, 1;
is $warnings[0], \$_, '!SvOK tied $@ that returns ref is used';
untie $@;
@warnings = ();
{
package o;
use overload '""' => sub { "" };
}
tie $t, Tie::StdScalar;
$t = bless [], o;
{
local *{ref(tied $t) . "::STORE"} = sub {};
undef $t;
}
warn $t;
is @warnings, 1;
object_ok $warnings[0], 'o',
'warn $tie_returning_object_that_stringifes_emptily';
@warnings = ();
eval "#line 42 Cholmondeley\n \$\@ = '3'; warn";
eval "#line 42 Cholmondeley\n \$\@ = 3; warn";
is @warnings, 2;
is $warnings[1], $warnings[0], 'warn treats $@=3 and $@="3" the same way';
fresh_perl_is(<<'EOF', "should be line 4 at - line 4.\n", {stderr => 1}, "");
${
foo
} = "should be line 4";
warn $foo;
EOF
TODO: {
local $::TODO = "Line numbers don't yet match up for \${ EXPR }";
my $expected = <<'EOF';
line 1 at - line 1.
line 4 at - line 3.
also line 4 at - line 4.
line 5 at - line 5.
EOF
fresh_perl_is(<<'EOF', $expected, {stderr => 1}, "");
warn "line 1";
(${
foo
} = "line 5") && warn("line 4"); warn("also line 4");
warn $foo;
EOF
}
1;
# RT #132602 pp_warn in scalar context was extending the stack then
# setting SP back to the old, freed stack frame
fresh_perl_is(<<'EOF', "OK\n", {stderr => 1}, "RT #132602");
$SIG{__WARN__} = sub {};
my (@a, @b);
for my $i (1..300) {
push @a, $i;
() = (@a, warn);
}
# mess with the stack some more for ASan's benefit
for my $i (1..100) {
push @a, $i;
@b = @a;
}
print "OK\n";
EOF
|
