rfc:callable-interfaces

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rfc:callable-interfaces [2016/04/06 11:44] – Adding case when an interface may not be callable ocramiusrfc:callable-interfaces [2016/04/06 12:00] – ocramius
Line 108: Line 108:
     passParameter($callable);     passParameter($callable);
 } }
 +</code>
 +
 +===== Still Open for Discussion =====
 +
 +How will **instanceof** behave, when asked for a type-check against **callable**?
 +
 +<code php>
 +interface RegisterUser {
 +    public function __invoke(Username $username) : UserRegistration;
 +}
 +
 +interface DeleteUserRegistration {
 +    public function __invoke(Username $username) : UserRegistration;
 +}
 +
 +$register = function (Username $username) : UserRegistration {
 +    return new UserRegistration(...);
 +};
 +
 +var_dump($register instanceof DeleteUserRegistration); // true? false? possibly want to keep current semantics here.
 </code> </code>
  
rfc/callable-interfaces.txt · Last modified: 2017/09/22 13:28 by 127.0.0.1

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