I believe the attempt with the RFC was to mimic the syntax that C# went with,
the RFC is here: https://wiki.php.net/rfc/propertygetsetsyntax
The first public would apply to either of the get/set which did not have it
further defined, for example:
public $Hours {
get { ... }
private set { ... }
}
Also, with automatic implementations (at present) the parent access level
controls the automatic property generation:
private $Hours {
public get;
public set;
}
Would define an internal variable of $__Hours as private. Perhaps it should
always be a private internal variable, it was not designated in the rfc and I
made it this way to be the most flexible for the author.
-----Original Message-----
From: Rasmus Schultz [mailto:ras...@mindplay.dk]
Sent: Monday, December 05, 2011 5:11 PM
To: internals@lists.php.net
Subject: [PHP-DEV] Re: Patch: getters/setters syntax Implementation
2011/12/4 Clint M Priest <cpri...@zerocue.com>:
> Updated patch w/o white-space:
http://www.clintpriest.com/patches/accessors_v1.patch
>
> In the end it is a relatively simple patch. The new syntax
> effectively
creates internal functions on the object and the system looks for those
functions and calls them at the appropriate time.
>
> Example:
> class z {
> public $Hours {
> public get { return $this->_Hours; }
> protected set { $this->_Hours = $value; }
> }
> }
>
> Defines:
> $o->__getHours();
> $o->__setHours($value);
You forgot to declare the backing field z::$_Hours in this example.
>From a semantic point of view, I find it misleading to first declare $Hours as
>public, then lowering the bar by making the set-accessor protected.
The most common use-case for accessors is public - so I would suggest a syntax
more along the lines of this:
class z {
private $_hours;
get $hours { // accessor is public by default
return $this->_hours;
}
protected set $hours {
$this->_hours = $hours; // local variable $hours is the new value
}
}
And perhaps a short form for added convenience, where the backing-field is
automatically added for you - e.g.:
class z {
get $hours { // accessor is public by default
return $value; // $value provides access to the backing field (same way
$this provides access to the object context)
}
protected set $hours {
$value = $hours; // local variable $hours is the new value, $value
references the backing field
}
}
thoughts?
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