rfc:mixed_type_v2

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rfc:mixed_type_v2 [2020/04/20 11:16]
danack unlinked email address to avoid spam.
rfc:mixed_type_v2 [2020/05/22 14:22] (current)
kocsismate
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   * Author: Máté Kocsis <kocsismate@php.net>, Danack<danack@php.net>   * Author: Máté Kocsis <kocsismate@php.net>, Danack<danack@php.net>
   * Based on previous RFC by: Michael Moravec   * Based on previous RFC by: Michael Moravec
-  * Status: In Draft+  * Status: Implemented
   * Implementation: https://github.com/php/php-src/pull/5313   * Implementation: https://github.com/php/php-src/pull/5313
   * First Published at: https://wiki.php.net/rfc/mixed_type_v2   * First Published at: https://wiki.php.net/rfc/mixed_type_v2
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 //INVALID - Fatal error: Mixed types cannot be nullable, null is already part of the mixed type. //INVALID - Fatal error: Mixed types cannot be nullable, null is already part of the mixed type.
 function bar(): ?mixed {} function bar(): ?mixed {}
 +</code>
 +
 +
 +
 +==== Explicit returns ==== 
 +
 +When using mixed as a return type, a value must be explicitly returned from the function, otherwise a TypeError will be thrown.
 +
 +<code php>
 +function foo(): mixed {}
 +
 +foo();
 +
 +// Uncaught TypeError: Return value of foo() must be of 
 +// the type mixed, none returned
 +</code>
 +
 +This is consistent with the existing behaviour for other return types.
 +
 +<code php>
 +function bar(): ?int {}
 +bar();
 +// Uncaught TypeError: Return value of bar() must be of 
 +// the type int or null, none returned
 +
 </code> </code>
  
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 Not analyzed. Not analyzed.
  
-===== Proposed Voting Choices ===== +===== Vote =====  
 +The vote starts on 2020-05-07 and ends on 2020-05-21 12:00 UTC. The vote requires 2/3 majority to be accepted.
  
-Add ''mixed'' as a type to be used as parameter, return and class property types - yes/no.+<doodle title="Add mixed as a type to be used as parameter, return and class property types?" auth="kocsismate" voteType="single" closed="true"> 
 +   * Yes 
 +   * No 
 +</doodle>
  
  
rfc/mixed_type_v2.1587381400.txt.gz · Last modified: 2020/04/20 11:16 by danack