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t/close-over.t  view on Meta::CPAN

#!/usr/bin/env perl
use strict;
use warnings;
use Test::More;
use Test::Fatal;

use B;
use Eval::Closure;

use Test::Requires 'PadWalker';

{
    my $foo = [];
    my $env = { '$foo' => \$foo };

    my $code = eval_closure(
        source      => 'sub { push @$foo, @_ }',
        environment => $env,
    );
    is_deeply(scalar(PadWalker::closed_over($code)), $env,
              "closed over the right things");
}

{
    my $foo = {};
    my $bar = [];
    my $env = { '$foo' => \$bar, '$bar' => \$foo };

    my $code = eval_closure(
        source      => 'sub { push @$foo, @_; $bar->{foo} = \@_ }',
        environment => $env,
    );
    is_deeply(scalar(PadWalker::closed_over($code)), $env,
              "closed over the right things");
}

{
    # i feel dirty
    my $c = eval_closure(source => 'sub { }');
    my $b = B::svref_2object($c);
    my @scopes;
    while ($b->isa('B::CV')) {
        push @scopes, $b;