PHP IDE :: NuSphere Forums :: View topic - Code completion: Iterator and ArrayAccess usage

Posted: Fri Apr 20, 2007 3:02 pm

Since PHP 5.0 we have a great feature - implementable Iterators:
http://www.php.net/~helly/php/ext/spl/interfaceIterator.html

Unfortunately, phpEd does not use its declaration for type analysis in code completion:

Code:

<?php
class MyIterator implements Iterator
{
/**
* @return myObject
*/
function current() {
(...)
return $someObject;
}
(...)
}

$myIterator = new MyIterator(...);
foreach ($myIterator as $key => $element)
{
// Failed to identify type of "$element"
$element->|
}
?>

When Iterator is implemented, it should use the return value of current() method to find type of $element in foreach.

It would be also great, if phpEd uses ArrayAccess interface:
http://www.php.net/~helly/php/ext/spl/interfaceArrayAccess.html

Code:

<?php
class MyArray implements ArrayAccess
{
/**
* @return myObject
*/
function & offsetGet($offset)
(...)
return $someObject;
}
(...)
}

$myArray = new MyIterator(...);
$myArray[0]->|
// phpEd doesn't even try to recognize the type :(
?>

It would really speed up working with object collections with PHP5.

Posted: Tue Apr 24, 2007 3:04 pm

So has anyone found a trick or anything to get this to work. It would make my life much easier and obviously Nataniel's.

TW

Posted: Wed Apr 25, 2007 5:40 pm

I think it's answered there http://forum.nusphere.com/code-completion-for-php-spl-dom-pdo-and-dom-t1733.html

Posted: Wed Apr 25, 2007 5:53 pm

dmitri wrote:

I think it's answered there http://forum.nusphere.com/code-completion-for-php-spl-dom-pdo-and-dom-t1733.html

No, it's not? Adding SPL.php to the include list only allows to complete methods/classes of SPL itself, not the methods of custom objects using SPL features.

Posted: Wed Apr 25, 2007 5:56 pm

It doesn't work for me either.

Posted: Wed Apr 25, 2007 7:16 pm

Code completion recognizes many things and you can help it serve you better by providing prototypes and type hints. Could you please post a more detailed info regarding what does not work for you?

Posted: Wed Apr 25, 2007 9:24 pm

The $D-> is where I pressed ctrl N it should show the data var as an available option.

I really don't know how feasible this is to do but I would be a giant help.

TW

Posted: Thu Apr 26, 2007 2:12 pm

I saw this somewhere and I thought I would give it a try and it works.

Quote:

/** @var a */

Code:

class a {
public $data;
public function __construct( $d ){
$this->data = $d;
}
}

class b implements Iterator {
private $key;
private $data;

public function __constructor( $d ){
$this->data = $d;
}
public function current () {
return new b( $this->data );

}
public function key (){
return $this->key;
}
public function next (){;}
public function rewind (){;}
public function valid (){;}
}

$a = new b( 'me' );
foreach( $a as $d ){
/** @var a */
$d->data;
}

I can work with this I think. I haven't tried anything but the iterator but I assume it will work similarly.

Posted: Thu Apr 26, 2007 5:57 pm

did you mean this?

Code:

public function current () {
return new a( $this->data );

}

otherwise I see no way how to get a from b and how would code insight recognize this... Even with correction, I doubt if it's clear...

Posted: Thu Apr 26, 2007 6:50 pm

alas, I forgot some of the most important aspects of the object didn't I. Embarassed

What I was trying to point out is I can add a /** @var a */ to make the $d look like the correct data type. It is crude but it works.

Code Completion doesn't work complete from the current() method unless you directly call the current() method.