Online PHP editor | rfc for AajsP

@ 2022-12-02T14:34:28Z

<?php

/**
 * segfault test
 *
 * I encountered during app bug hunt, whereby instead of
 * `$w->method()` it called `$this->method()`.
 *
 * However, I discovered that infinite recursion which
 * usually triggers memory limit or max_recursion_depth
 *
 * For minimal testcase for segfault see: method4()
 */

class Y
{
  public function method()
  {
  }
}

class X
{
  public function method(): array
  {
    $ws = [new Y];
    return array_map(function ($w) {
      return ['id' => 3, 'something' => $this->method()]; 
      // this effectivly recurses (I was debugging a typo, this should have been `$w->method()`)
    }, $ws);
  }

  public function method2()
  {
    $this->method2();
  }

  public function method3()
  {
    $a = function (){ $this->method3(); };
    $a();
  }

  // minimal testcase for segfault <---------------------- MINIMAL TESTCASE
  public function method4()
  {
    $a = function (){ $this->method4(); };
    array_map($a,[1]);
  }
}

// original test-harnes
// (new X)->method();

// Allowed memory size exhausted
// (new X)->method2();

// also, Allowed memory size exhausted
//(new X)->method3();

// minimal testcase for segfault
(new X)->method4();

Output for git.master_jit, git.master: Process exited with code 139.
Output for rfc.property-hooks: Fatal error: Out of memory (allocated 27262976 bytes) (tried to allocate 20480 bytes) in /in/AajsP on line 47 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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