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Date: Tue, 23 Apr 2019 14:57:45 +0100
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Subject: Re: [PHP-DEV] Object Type Casting Reloaded
From: markyr@gmail.com (Mark Randall)
Message-ID: <php.internals-105360@news.php.net>

On 23/04/2019 14:39, Mark Randall wrote:
> It keeps coming back to the feature we've all been praying to the PHP 
> Gods for... generics.

Replying to myself (sorry).

I just wanted to point out that the same syntax would also solve your 
other issue from the nullable casts thread:

function ncast<type T>($value) ?T {
    if ($value === null) {
      return null;
    }

    if (settype($value, T) === false) {
       throw new InvalidArgumentException('Cannot convert to ' . T);
    }

    return $value;
}

ncast<int>(null);
ncast<int>(12345);

ncast<string>(null);
ncast<string>('abcdef');

--
Mark Randall