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|
#!./perl
# "This IS structured code. It's just randomly structured."
print "1..22\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");
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;
|
