www.aleph1.co.uk Git - yaffs-website/blob - vendor/psy/psysh/src/ExecutionLoop.php

   1 <?php
   2
   3 /*
   4  * This file is part of Psy Shell.
   5  *
   6  * (c) 2012-2018 Justin Hileman
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Psy;
  13
  14 use Psy\Exception\ErrorException;
  15
  16 /**
  17  * The Psy Shell execution loop.
  18  */
  19 class ExecutionLoop
  20 {
  21     /**
  22      * Run the execution loop.
  23      *
  24      * @throws ThrowUpException if thrown by the `throw-up` command
  25      *
  26      * @param Shell $shell
  27      */
  28     public function run(Shell $shell)
  29     {
  30         $this->loadIncludes($shell);
  31
  32         $closure = new ExecutionLoopClosure($shell);
  33         $closure->execute();
  34     }
  35
  36     /**
  37      * Load user-defined includes.
  38      *
  39      * @param Shell $shell
  40      */
  41     protected function loadIncludes(Shell $shell)
  42     {
  43         // Load user-defined includes
  44         $load = function (Shell $__psysh__) {
  45             set_error_handler([$__psysh__, 'handleError']);
  46             foreach ($__psysh__->getIncludes() as $__psysh_include__) {
  47                 try {
  48                     include $__psysh_include__;
  49                 } catch (\Error $_e) {
  50                     $__psysh__->writeException(ErrorException::fromError($_e));
  51                 } catch (\Exception $_e) {
  52                     $__psysh__->writeException($_e);
  53                 }
  54             }
  55             restore_error_handler();
  56             unset($__psysh_include__);
  57
  58             // Override any new local variables with pre-defined scope variables
  59             extract($__psysh__->getScopeVariables(false));
  60
  61             // ... then add the whole mess of variables back.
  62             $__psysh__->setScopeVariables(get_defined_vars());
  63         };
  64
  65         $load($shell);
  66     }
  67 }