Created
September 22, 2010 04:26
-
-
Save dhotson/591139 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<?php | |
// Define the 'class' class | |
$class = Obj() | |
->fn('new', function ($class) { | |
$newClass = Obj($class->methods) | |
->fn('new', function($class) { | |
$obj = Obj($class->imethods); | |
$args = func_get_args(); | |
array_shift($args); | |
call_user_func_array(array($obj, 'init'), $args); | |
return $obj; | |
}); | |
return $newClass; | |
}) | |
->fn('def', function ($t, $name, $fn) { | |
$t->imethods[$name] = $fn; | |
return $t; | |
}) | |
->fn('extend', function ($t) { | |
return clone $t; | |
}); | |
// Define a new class | |
$animal = $class->new() | |
->def('init', function($t, $name) { | |
$t->name = $name; | |
}) | |
->def('speak', function($t) { | |
echo "My name is $t->name\n"; | |
}); | |
// Extend a class | |
$dog = $animal->extend() | |
->def('speak', function($t) { | |
echo "My name is $t->name, I have just met you and I love you, SQUIRREL!\n"; | |
}) | |
->def('bark', function($t) { | |
echo "Woof!\n"; | |
}); | |
$jimmy = $animal->new('Jimmy'); | |
$jimmy->speak(); | |
$doug = $dog->new('Doug'); | |
$doug->speak(); | |
$doug->bark(); | |
// ---- The guts... | |
class Obj | |
{ | |
public function __construct($methods=array()) | |
{ | |
$this->methods = $methods; | |
} | |
public function method($name) | |
{ | |
if (!isset($this->methods[$name])) | |
throw new BadMethodCallException(); | |
return $this->methods[$name]; | |
} | |
public function fn($name, $fn) | |
{ | |
$this->methods[$name] = $fn; | |
return $this; | |
} | |
public function __call($name, $args) | |
{ | |
return call_user_func_array( | |
$this->method($name), | |
array_merge(array($this), $args) | |
); | |
} | |
} | |
// Allow chaining method calls off the constructor.. | |
function Obj($methods=array()) | |
{ | |
return new Obj($methods); | |
} |
Heh.. it's funny you should mention that. We recently deployed 5.3 on our production servers, which led me to thinking about what kind of crazy evil stuff I could implement using closures. This is the result.
a good amount of overhead, but you can get around the serialization problem via:
http://github.com/jeremeamia/super_closure
Hah, that's a pretty cool hack. /impressed
very interesting!
I like it :)
Neat.
Very cool, could be a good way to implement inceptors, sequences. tried an implementation http://gist.github.com/594135/ haven't tested it at all though
Definitely not OO !
Cool stuff!
Forked with view to providing a replacement for StdClass that allows you to attach callable methods to.
This pattern is mostly used in javascript.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
yeah .. 5.3 .. I am actually looking forward to the day we upgrade our production environment to that version .. it's going to be a total map/reduce party!