Re: New Module Announcement: Object::InsideOut

Did you cover this test case? That ${} dereferencing (or actually, anything) is still legal? That numfication still worked correctly?

use Test::More tests => 2;
my $obj = Foo::Bar->new;
is( $obj->some_method, "ok" );
is( 0 + $obj, 42 );

package Foo::Bar;
use overload
    '${}' => 'some_method'
    '0+' => 'numify';
use Object::InsideOut;

sub numify { 42 }
sub some_method { "ok" }
[download]

Comment on Re: New Module Announcement: Object::InsideOut Download Code

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Re^2: New Module Announcement: Object::InsideOut by jdhedden (Deacon) on Nov 03, 2005 at 21:24 UTC
Because the object ID is stored in the object's scalar ref (i.e., $$self), overloading ${} deferencing is not allowed. I document this fact in the POD. However, all other forms of object deferencing through overloading are supported: Stringify, numerify, boolify, arrayify, hashify, globify and codify. Object::InsideOut simplifies defining these operations through the use of subroutine attributes. For example, your code would become: `use Test::More 'no_plan'; package Foo::Bar; { use Object::InsideOut; sub numify :Numerify { 42 } } package main; my $obj = Foo::Bar->new(); is(0 + $obj, 42);` [download] Remember: There's always one more bug.	[reply] [d/l]
Re^3: New Module Announcement: Object::InsideOut by diotalevi (Canon) on Nov 03, 2005 at 21:28 UTC
If you treat the scalar as an opaque object, store nothing inside it and use overload::StrVal as the key instead, you can allow ${} to be overloaded as well. Data::Postponed uses blessed scalars as the object and allows anything what so ever to be overloaded.	[reply]
Re^4: New Module Announcement: Object::InsideOut by jdhedden (Deacon) on Nov 04, 2005 at 13:11 UTC
Then you are back to the same performance problems encountered with Class::Std, namely you have to calculate the object ID on every access. It is an engineering trade-off that I feel is more than justified. By storing the object ID in the object's scalar, the only thing you give up is the capability to overload the ${} operator. Remember: There's always one more bug.	[reply]
Re^5: New Module Announcement: Object::InsideOut by Aristotle (Chancellor) on Nov 04, 2005 at 14:17 UTC
Re^6: New Module Announcement: Object::InsideOut by jdhedden (Deacon) on Jan 10, 2006 at 15:40 UTC


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