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
|
#!./perl
# "This IS structured code. It's just randomly structured."
print "1..27\n";
while ($?) {
$foo = 1;
label1:
$foo = 2;
goto label2;
} continue {
$foo = 0;
goto label4;
label3:
$foo = 4;
goto label4;
}
goto label1;
$foo = 3;
label2:
print "#1\t:$foo: == 2\n";
if ($foo == 2) {print "ok 1\n";} else {print "not ok 1\n";}
goto label3;
label4:
print "#2\t:$foo: == 4\n";
if ($foo == 4) {print "ok 2\n";} else {print "not ok 2\n";}
$PERL = ($^O eq 'MSWin32') ? '.\perl' : ($^O eq 'MacOS') ? $^X : ($^O eq 'NetWare') ? 'perl' : './perl';
$CMD = qq[$PERL -e "goto foo;" 2>&1 ];
$x = `$CMD`;
if ($x =~ /label/) {print "ok 3\n";} else {print "not ok 3\n";}
sub foo {
goto bar;
print "not ok 4\n";
return;
bar:
print "ok 4\n";
}
&foo;
sub bar {
$x = 'bypass';
eval "goto $x";
}
&bar;
exit;
FINALE:
print "ok 13\n";
# does goto LABEL handle block contexts correctly?
my $cond = 1;
for (1) {
if ($cond == 1) {
$cond = 0;
goto OTHER;
}
elsif ($cond == 0) {
OTHER:
$cond = 2;
print "ok 14\n";
goto THIRD;
}
else {
THIRD:
print "ok 15\n";
}
}
print "ok 16\n";
# Does goto work correctly within a for(;;) loop?
# (BUG ID 20010309.004)
for(my $i=0;!$i++;) {
my $x=1;
goto label;
label: print (defined $x?"ok ": "not ok ", "17\n")
}
# Does goto work correctly going *to* a for(;;) loop?
# (make sure it doesn't skip the initializer)
my ($z, $y) = (0);
FORL1: for($y="ok 18\n"; $z;) {print $y; goto TEST19}
($y,$z) = ("not ok 18\n", 1);
goto FORL1;
# Even from within the loop?
TEST19: $z = 0;
FORL2: for($y="ok 19\n"; 1;) {
if ($z) {
print $y;
last;
}
($y, $z) = ("not ok 19\n", 1);
goto FORL2;
}
# Does goto work correctly within a try block?
# (BUG ID 20000313.004)
my $ok = 0;
eval {
my $variable = 1;
goto LABEL20;
LABEL20: $ok = 1 if $variable;
};
print ($ok&&!$@ ? "ok 20\n" : "not ok 20\n");
# And within an eval-string?
$ok = 0;
eval q{
my $variable = 1;
goto LABEL21;
LABEL21: $ok = 1 if $variable;
};
print ($ok&&!$@ ? "ok 21\n" : "not ok 21\n");
# Test that goto works in nested eval-string
$ok = 0;
{eval q{
eval q{
goto LABEL22;
};
$ok = 0;
last;
LABEL22: $ok = 1;
};
$ok = 0 if $@;
}
print ($ok ? "ok 22\n" : "not ok 22\n");
{
my $false = 0;
$ok = 0;
{ goto A; A: $ok = 1 } continue { }
print "not " unless $ok;
print "ok 23 - #20357 goto inside /{ } continue { }/ loop\n";
$ok = 0;
{ do { goto A; A: $ok = 1 } while $false }
print "not " unless $ok;
print "ok 24 - #20154 goto inside /do { } while ()/ loop\n";
$ok = 0;
foreach(1) { goto A; A: $ok = 1 } continue { };
print "not " unless $ok;
print "ok 25 - goto inside /foreach () { } continue { }/ loop\n";
$ok = 0;
sub a {
A: { if ($false) { redo A; B: $ok = 1; redo A; } }
goto B unless $r++
}
a();
print "not " unless $ok;
print "ok 26 - #19061 loop label wiped away by goto\n";
$ok = 0;
for ($p=1;$p && goto A;$p=0) { A: $ok = 1 }
print "not " unless $ok;
print "ok 27 - weird case of goto and for(;;) loop\n";
}
exit;
bypass:
print "ok 5\n";
# Test autoloading mechanism.
sub two {
($pack, $file, $line) = caller; # Should indicate original call stats.
print "@_ $pack $file $line" eq "1 2 3 main $FILE $LINE"
? "ok 7\n"
: "not ok 7\n";
}
sub one {
eval <<'END';
sub one { print "ok 6\n"; goto &two; print "not ok 6\n"; }
END
goto &one;
}
$FILE = __FILE__;
$LINE = __LINE__ + 1;
&one(1,2,3);
$wherever = NOWHERE;
eval { goto $wherever };
print $@ =~ /Can't find label NOWHERE/ ? "ok 8\n" : "not ok 8\n";
# see if a modified @_ propagates
{
package Foo;
sub DESTROY { my $s = shift; print "ok $s->[0]\n"; }
sub show { print "# @_\nnot ok $_[0][0]\n" if @_ != 5; }
sub start { push @_, 1, "foo", {}; goto &show; }
for (9..11) { start(bless([$_]), 'bar'); }
}
sub auto {
goto &loadit;
}
sub AUTOLOAD { print @_ }
auto("ok 12\n");
$wherever = FINALE;
goto $wherever;
|
