rfc:instance-method-call

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
Last revisionBoth sides next revision
rfc:instance-method-call [2010/11/26 20:22] – update feliperfc:instance-method-call [2014/04/08 22:47] – salathe
Line 3: Line 3:
   * Date: 2010-11-26   * Date: 2010-11-26
   * Author: Felipe Pena <felipe@php.net>   * Author: Felipe Pena <felipe@php.net>
-  * Status: Under Discussion+  * Status: Implemented (Syntax 2)
  
 ===== Introduction ===== ===== Introduction =====
  
 The purpose of RFC is to presents the support for instantiating a class and calling its methods and accessing its properties on same command. The purpose of RFC is to presents the support for instantiating a class and calling its methods and accessing its properties on same command.
 +We could use one of two syntaxes below:
 +
 +===== Syntax 1 (without brackets) =====
 +
 +  * %%new foo->bar()%% should be read as %%(new foo)->bar()%%
 +  * %%new $foo()->bar%% should be read as %%(new $foo())->bar%%
 +  * %%new $bar->y()->x%% should be read as %%(new ($bar->y)())->x%%
 +
 +===== Syntax 2 (with brackets) =====
 +
 +  * %%(new foo())->bar()%%
 +  * %%(new $foo())->bar%%
 +  * %%(new $bar->y)->x%%
 +  * %%(new foo)[0]%%
  
 ===== Examples ===== ===== Examples =====
 +
 +=== Using brackets ===
 +
 +<code php>
 +<?php
 +
 +class foo extends ArrayObject {
 + public function __construct($arr) {
 + parent::__construct($arr);
 + }
 +}
 +
 +var_dump( (new foo( array(1, array(4, 5), 3) ))[1][0] ); // int(4)
 +
 +?>
 +</code>
 +
 +<code php>
 +<?php
 +
 +class foo {
 + public $x = 1;
 +}
 +
 +class bar {
 + public $y = 'foo';
 +}
 +
 +$x = 'bar';
 +
 +$bar = new bar;
 +
 +var_dump((new bar)->y);     // foo
 +var_dump((new $x)->y);      // foo
 +var_dump((new $bar->y)->x); // 1
 +
 +?>
 +</code>
 +
 +<code php>
 +<?php
 +
 +class bar {
 + public $z;
 +
 + public function __construct() {
 + $this->z = new stdclass;
 + }
 + public function getZ() {
 + return $this->z;
 + }
 +}
 +
 +var_dump(clone (new bar)->z);
 +var_dump(clone (new bar)->getZ());
 +
 +?>
 +</code>
 +
 +=== Without brackets ===
  
 <code php> <code php>
Line 67: Line 141:
  
 try { try {
- $X = new foo()->Inexistent(3);+ $X = new foo->Inexistent(3);
 } catch (Exception $e) { } catch (Exception $e) {
  var_dump($e->getMessage()); // foobar  var_dump($e->getMessage()); // foobar
Line 77: Line 151:
 ===== Patch ===== ===== Patch =====
  
-- http://felipe.ath.cx/diff/instance-method-call.patch+  * http://felipe.ath.cx/diff/instance-method-call.patch (without brackets) 
 +  * http://felipe.ath.cx/diff/instance-method-call-2.patch (with brackets) 
 +  * http://felipe.ath.cx/diff/instance-method-call-3.patch (with brackets + array dereferencing) 
 + 
 +===== Changelog ===== 
 + 
 +  * 08/04/2014 - Closed as "implemented" 
 +  * 06/11/2011 - Implemented (Syntax 2) in [[http://git.php.net/?p=php-src.git;a=commit;h=ff48763f4b0fee906293815b42fe3e2a167702c8|ff48763f4b]] (PHP 5.4.0) 
 +  * 26/11/2010 - Posted RFC on internals 
 +  * 27/11/2010 - New syntax proposed 
 +  * 29/11/2010 - Added array dereferencing support (e.g. %%(new foo)[0]%%)
rfc/instance-method-call.txt · Last modified: 2017/09/22 13:28 by 127.0.0.1

Page Tools