rfc:switch.default.multiple

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rfc:switch.default.multiple [2014/09/05 19:43] – levimrfc:switch.default.multiple [2017/09/22 13:28] (current) – external edit 127.0.0.1
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   * Date: 2014-08-05   * Date: 2014-08-05
   * Author: Levi Morrison <levim@php.net>   * Author: Levi Morrison <levim@php.net>
-  * Status: Under Discussion+  * Status: Accepted
   * First Published at: http://wiki.php.net/rfc/switch.default.multiple   * First Published at: http://wiki.php.net/rfc/switch.default.multiple
  
 ===== Introduction ===== ===== Introduction =====
  
-[[https://bugs.php.net/bug.php?id=67757|Bug 67757]] notes that the recently introduced PHP language specification differs from PHP's behavior when a switch statement defines multiple default cases.  The spec claims the following is a syntax error, while PHP will execute it just fine (resulting in the latter default block being taken).+[[https://bugs.php.net/bug.php?id=67757|Bug 67757]] notes that the recently introduced PHP language specification differs from PHP's behavior when a switch statement defines multiple default cases.  The spec claims the following is a syntax error, while PHP will execute it with the last default block being taken:
  
   switch ($expr) {   switch ($expr) {
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 There may be code out there (maybe generated code?) which relies on being able to define multiple default blocks and having only the last block executed. This RFC takes the position that multiple default blocks was an implementation detail that should not have been relied upon. There may be code out there (maybe generated code?) which relies on being able to define multiple default blocks and having only the last block executed. This RFC takes the position that multiple default blocks was an implementation detail that should not have been relied upon.
 +
 +===== Implementation =====
 +
 +  * PHP 5.7: https://github.com/php/php-src/pull/807
 +  * PHP 7.0: https://github.com/php/php-src/pull/808 (commit [[http://git.php.net/?p=php-src.git;a=commit;h=6967f78cc95ef6166f82dcb7e4395f594ce5ad0b|6967f78cc95ef6166f82dcb7e4395f594ce5ad0b]])
 +
 +Already landed in HHVM:
 +  * https://github.com/facebook/hhvm/commit/e77e2f74f9fd0619d5ae0555695d327af7dadffd
  
 ===== Proposed PHP Version(s) ===== ===== Proposed PHP Version(s) =====
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 ===== Vote ===== ===== Vote =====
  
 +This RFC modifies the PHP language and requires 2/3 vote in the affirmative to pass. Voting will remain open through Monday, September 15th.
  
-===== Implementation =====+Should we deprecate multiple default clauses in switch statements in PHP 5.7 and remove them in PHP 7, as outlined and implemented in this RFC?
  
-  * PHP 5.7: https://github.com/php/php-src/pull/807 +<doodle title="switch.default.multiple" auth="levim" voteType="single" closed="true"> 
-  *  PHP 7.0: https://github.com/sgolemon/php-src/compare/switch.default.multiple+   * Yes 
 +   * No 
 +</doodle>
  
-Already landed in HHVM: +Voting was unambiguously in favor of this RFC.
-  * https://github.com/facebook/hhvm/commit/e77e2f74f9fd0619d5ae0555695d327af7dadffd+
  
 ===== Changelog ===== ===== Changelog =====
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   * Levi Morrison claims ownership of RFC (2014-08-14 17:13 UTC)   * Levi Morrison claims ownership of RFC (2014-08-14 17:13 UTC)
     * Changes RFC to target PHP 7 for removal, with deprecations going into PHP 5.7.     * Changes RFC to target PHP 7 for removal, with deprecations going into PHP 5.7.
-  * Added implementation for PHP 5.7 (2014-09-05 13:42 UTC)+  * Added implementation for PHP 5.7 (2014-09-05 20:42 UTC) 
 +  * Voting is open (2014-09-05 21:19 UTC) and will close in ten days. 
 +  * Updated implementation for PHP 7.0 because of AST merge (2014-09-05 22:16 UTC)
rfc/switch.default.multiple.1409946185.txt.gz · Last modified: 2017/09/22 13:28 (external edit)

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