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Date: Wed, 11 May 2016 10:51:31 +0300
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Subject: Re: [PHP-DEV] [RFC] [VOTE] PHP Attributes
From: dmitry@zend.com (Dmitry Stogov)



On 05/11/2016 10:27 AM, Stanislav Malyshev wrote:
> Hi!
>
>> Personally, I'm for AST as well, but it's possible to get the same power
>> translating string values of attributes into AST in the hooks.
> Extending this, it's also possible to get the same power just extracting
> phpdocs and applying AST to them.
In general yes, but we don't have grammar for doc-comments, and even 
extracting general string value may be not trivial.

/**
  * Adds two positive numbers
  *
  * @ensures $x + $y >=
  *                  0
  * // support for multi-line attribute values?
  * @on_enter @enter_function(__FUNCTION__);
  * '@' sign before enter_function() is a silence operator.
  */
function add($x, $y) {
     return $x + $y;
}