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use Test::More 'no_plan';
use Contextual::Return;
{
sub foo : lvalue {
my $x = 0;
my $wantarray = wantarray;
RVALUE {
BOOL { $x > 0 }
STR { "[$x]" }
NUM { $x }
}
LVALUE {
$x = $_[0] * $_;
is $CALLER::_, 'wunderbar' => 'Caller::_';
}
NVALUE {
ok !defined $wantarray => 'NVALUE context';
}
}
}
$_ = 'wunderbar';
for my $foo (foo 10) {
is $foo+0, 0 => "Pre-numerication";
is "$foo", "[0]" => "Pre-stringification";
ok !$foo => "Pre-boolification";
$foo = 99;
is $foo+0, 990 => "Post-numerication";
is "$foo", "[990]" => "Post-stringification";
ok $foo => "Post-boolification";
}
is 0+foo, 0 => "Ex-numerication";
is "".foo, "[0]" => "Ex-stringification";
ok !foo() => "Ex-boolification";
foo(1) = 99;
is 0+foo, 0 => "Ex-post-numerication";
is "".foo, "[0]" => "Ex-post-stringification";
ok !$foo => "Ex-post-boolification";
foo();
my $f = \foo();
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