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Viewing: overloaded-coderefs.t

use Moo::_strictures;
use Test::More;

my $codified = 0;
{
  package Dark::Side;
  use overload
    q[&{}]   => sub { $codified++; shift->to_code },
    fallback => 1;
  sub new {
    my $class = shift;
    my $code = shift;
    bless \$code, $class;
  }
  sub to_code {
    my $self = shift;
    eval "sub { $$self }";
  }
}

{
  package The::Force;
  use Sub::Quote;
  use base 'Dark::Side';
  sub to_code {
    my $self = shift;
    return quote_sub $$self;
  }
}

my $darkside = Dark::Side->new('my $dummy = "join the dark side"; $_[0] * 2');
is($darkside->(6), 12, 'check Dark::Side coderef');

my $theforce = The::Force->new('my $dummy = "use the force Luke"; $_[0] * 2');
is($theforce->(6), 12, 'check The::Force coderef');

my $luke = The::Force->new('my $z = "I am your father"');
{
  package Doubleena;
  use Moo;
  has a => (is => "rw", coerce => $darkside, isa => sub { 1 });
  has b => (is => "rw", coerce => $theforce, isa => $luke);
}

my $o = Doubleena->new(a => 11, b => 12);
is($o->a, 22, 'non-Sub::Quoted inlined coercion overload works');
is($o->b, 24, 'Sub::Quoted inlined coercion overload works');
my $codified_before = $codified;
$o->a(5);
is($codified_before, $codified, "repeated calls to accessor don't re-trigger overload");

use B::Deparse;
my $constructor = B::Deparse->new->coderef2text(Doubleena->can('new'));

like($constructor, qr{use the force Luke}, 'Sub::Quoted coercion got inlined');
unlike($constructor, qr{join the dark side}, 'non-Sub::Quoted coercion was not inlined');
like($constructor, qr{I am your father}, 'Sub::Quoted isa got inlined');

require Scalar::Util;
is(
  Scalar::Util::refaddr($luke),
  Scalar::Util::refaddr(
    Moo->_constructor_maker_for("Doubleena")->all_attribute_specs->{"b"}{"isa"}
  ),
  '$spec->{isa} reference is not mutated',
);
is(
  Scalar::Util::refaddr($theforce),
  Scalar::Util::refaddr(
    Moo->_constructor_maker_for("Doubleena")->all_attribute_specs->{"b"}{"coerce"}
  ),
  '$spec->{coerce} reference is not mutated',
);

done_testing;

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