rfc:generics

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
Next revisionBoth sides next revision
rfc:generics [2016/04/25 14:18] – additional notes on the is-keyword mindplayrfc:generics [2016/04/25 15:19] – mindplay
Line 327: Line 327:
  
 The same applies when overriding constructors and static methods. The same applies when overriding constructors and static methods.
 +
 +==== Generic Constructors ====
 +
 +Constructors may accept arbitrary type-arguments, just like any other method, e.g.:
 +
 +<code php>
 +class Hello<T1>
 +{
 +    public function __construct<T1,T2>()
 +    {
 +        // ...
 +    }
 +}
 +</code>
 +
 +In other words, the constructor may accept more type-arguments than those affecting the type.
  
 ==== Generic Closures ==== ==== Generic Closures ====
Line 365: Line 381:
  
 TODO: decide whether or not [[https://en.wikipedia.org/wiki/Bounded_quantification|bounded polymorphism]] should be supported. TODO: decide whether or not [[https://en.wikipedia.org/wiki/Bounded_quantification|bounded polymorphism]] should be supported.
 +
 +=== Multiple Constraints ===
 +
 +TODO: decide whether or not multiple constraints should be supported, e.g. with a Java-like syntax:
 +
 +<code php>
 +class A<T> where T is T1, T is T2 {
 +    // ...
 +}
 +</code>
 +
 +This may relate to the [[https://wiki.php.net/rfc/union_types|union types RFC]] - if implemented, it may be more natural to expect support for union types as bounds.
  
 ==== Autoloading ==== ==== Autoloading ====
rfc/generics.txt · Last modified: 2018/06/02 17:33 by mindplay

Page Tools