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#./perl
use Test::More;
no warnings 'experimental::builtin';
use builtin qw(refaddr);
{
package Stringifies;
use overload (
fallback => 1,
'""' => sub { "foo" },
'0+' => sub { 42 },
cos => sub { "far side of overload table" },
);
sub new { bless {}, shift };
}
my $x = Stringifies->new;
my $y = qr//;
my $ystr = "$y";
is( "$x", "foo", "stringifies" );
is( "$y", $ystr, "stringifies qr//" );
is( 0 + $x, 42, "numifies" );
is( cos($x), "far side of overload table", "cosinusfies" );
{
no overloading;
is( "$x", overload::StrVal($x), "no stringification" );
is( "$y", overload::StrVal($y), "no stringification of qr//" );
is( 0 + $x, refaddr($x), "no numification" );
is( cos($x), cos(refaddr($x)), "no cosinusfication" );
{
no overloading '""';
is( "$x", overload::StrVal($x), "no stringification" );
is( "$y", overload::StrVal($y), "no stringification of qr//" );
is( 0 + $x, refaddr($x), "no numification" );
is( cos($x), cos(refaddr($x)), "no cosinusfication" );
}
}
{
no overloading '""';
is( "$x", overload::StrVal($x), "no stringification" );
is( "$y", overload::StrVal($y), "no stringification of qr//" );
is( 0 + $x, 42, "numifies" );
is( cos($x), "far side of overload table", "cosinusfies" );
my $q = qr/abc/;
ok "abc" =~ $q, '=~ qr// with no "" overloading';
ok "abcd" =~ /${q}d/, '=~ /foo$qr/ with no "" overloading';
{
no overloading 'qr';
my $q = qr/abc/;
ok "abc" =~ $q, '=~ qr// with no "" or qr overloading';
ok "abcd" =~ /${q}d/, '=~ /foo$qr/ with no "" or qr overloading';
}
{
no overloading;
is( "$x", overload::StrVal($x), "no stringification" );
is( "$y", overload::StrVal($y), "no stringification of qr//" );
is( 0 + $x, refaddr($x), "no numification" );
is( cos($x), cos(refaddr($x)), "no cosinusfication" );
}
use overloading '""';
is( "$x", "foo", "stringifies" );
is( "$y", $ystr, "stringifies qr//" );
is( 0 + $x, 42, "numifies" );
is( cos($x), "far side of overload table", "cosinusfies" );
no overloading '0+';
is( "$x", "foo", "stringifies" );
is( "$y", $ystr, "stringifies qr//" );
is( 0 + $x, refaddr($x), "no numification" );
is( cos($x), "far side of overload table", "cosinusfies" );
{
no overloading '""';
is( "$x", overload::StrVal($x), "no stringification" );
is( "$y", overload::StrVal($y), "no stringification of qr//" );
is( 0 + $x, refaddr($x), "no numification" );
is( cos($x), "far side of overload table", "cosinusfies" );
{
use overloading;
is( "$x", "foo", "stringifies" );
is( "$y", $ystr, "stringifies qr//" );
is( 0 + $x, 42, "numifies" );
is( cos($x), "far side of overload table", "cosinusfies" );
}
}
is( "$x", "foo", "stringifies" );
is( "$y", $ystr, "stringifies qr//" );
is( 0 + $x, refaddr($x), "no numification" );
is( cos($x), "far side of overload table", "cosinusfies" );
no overloading "cos";
is( "$x", "foo", "stringifies" );
is( "$y", $ystr, "stringifies qr//" );
is( 0 + $x, refaddr($x), "no numification" );
is( cos($x), cos(refaddr($x)), "no cosinusfication" );
BEGIN { ok(exists($^H{overloading}), "overloading hint present") }
use overloading;
BEGIN { ok(!exists($^H{overloading}), "overloading hint removed") }
}
done_testing();
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