On Thu, Jan 25, 2018 at 7:52 AM, Derick Rethans <der...@php.net> wrote:
> On Wed, 24 Jan 2018, Michael Morris wrote: > > > Ok, here's another idea I've been mulling over. This I know is possible > > because I've done it using user land code, specifically Drupal 8's > > Assertion\Inspector class. > > > > https://api.drupal.org/api/drupal/core%21lib%21Drupal% > 21Component%21Assertion%21Inspector.php/class/Inspector/8.5.x > > > > These methods provide a means to inspect collections - arrays usually but > > also Traversables. They fill a hole in the PHP library - the ability to > > check collection integrity. > > IMO, it makes a lot more sense to check integrity when creating the > "array" structure. Instead, I would suggest to add a native Collection > type, that takes a "type" as argument. They aren't quite full generics, > but it does 1. fix something; 2. isn't really complicated. > > What I am suggesting is to add a new syntax "Collection<$type>", > mimicking a class, but having a type as "argument": > > Just like to point out if it's considered a class, or takes the same space there is likely collisions. While most collection classes on github look to be in a namespace, there are lots that aren't. Of course github only gives us a view of open source projects that happen to be on github. > $a = new Collection<integer>; > > And then $a can act as if you'd use an ArrayAccess'ed class. > Upon each set or update, the type of the value can then be checked > against the type. > > Consequently, this would also mean you can type hint on Collection<type> > instead of for example an earlier suggested array of type, where upon > passing in the array each member was checked for its type (slow). > > And on top of this, this could be extended to do proper generics too. > > cheers, > Derick > > -- > https://derickrethans.nl | https://xdebug.org | https://dram.io > Like Xdebug? Consider a donation: https://xdebug.org/donate.php, > or become my Patron: https://www.patreon.com/derickr > twitter: @derickr and @xdebug > > -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: http://www.php.net/unsub.php > >
