File: vendor/sebastian/global-state/src/Restorer.php

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File: vendor/sebastian/global-state/src/Restorer.php
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Class: PHP Pokemon Script
Provides an API to manage a database of Pokemons
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<?php
/*
 * This file is part of the GlobalState package.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace SebastianBergmann\GlobalState;

use
ReflectionProperty;

/**
 * Restorer of snapshots of global state.
 */
class Restorer
{
   
/**
     * Deletes function definitions that are not defined in a snapshot.
     *
     * @param Snapshot $snapshot
     * @throws RuntimeException when the uopz_delete() function is not available
     * @see https://github.com/krakjoe/uopz
     */
   
public function restoreFunctions(Snapshot $snapshot)
    {
        if (!
function_exists('uopz_delete')) {
            throw new
RuntimeException('The uopz_delete() function is required for this operation');
        }

       
$functions = get_defined_functions();

        foreach (
array_diff($functions['user'], $snapshot->functions()) as $function) {
           
uopz_delete($function);
        }
    }

   
/**
     * Restores all global and super-global variables from a snapshot.
     *
     * @param Snapshot $snapshot
     */
   
public function restoreGlobalVariables(Snapshot $snapshot)
    {
       
$superGlobalArrays = $snapshot->superGlobalArrays();

        foreach (
$superGlobalArrays as $superGlobalArray) {
           
$this->restoreSuperGlobalArray($snapshot, $superGlobalArray);
        }

       
$globalVariables = $snapshot->globalVariables();

        foreach (
array_keys($GLOBALS) as $key) {
            if (
$key != 'GLOBALS' &&
                !
in_array($key, $superGlobalArrays) &&
                !
$snapshot->blacklist()->isGlobalVariableBlacklisted($key)) {
                if (isset(
$globalVariables[$key])) {
                   
$GLOBALS[$key] = $globalVariables[$key];
                } else {
                    unset(
$GLOBALS[$key]);
                }
            }
        }
    }

   
/**
     * Restores all static attributes in user-defined classes from this snapshot.
     *
     * @param Snapshot $snapshot
     */
   
public function restoreStaticAttributes(Snapshot $snapshot)
    {
       
$current = new Snapshot($snapshot->blacklist(), false, false, false, false, true, false, false, false, false);
       
$newClasses = array_diff($current->classes(), $snapshot->classes());
        unset(
$current);

        foreach (
$snapshot->staticAttributes() as $className => $staticAttributes) {
            foreach (
$staticAttributes as $name => $value) {
               
$reflector = new ReflectionProperty($className, $name);
               
$reflector->setAccessible(true);
               
$reflector->setValue($value);
            }
        }

        foreach (
$newClasses as $className) {
           
$class = new \ReflectionClass($className);
           
$defaults = $class->getDefaultProperties();

            foreach (
$class->getProperties() as $attribute) {
                if (!
$attribute->isStatic()) {
                    continue;
                }

               
$name = $attribute->getName();

                if (
$snapshot->blacklist()->isStaticAttributeBlacklisted($className, $name)) {
                    continue;
                }

                if (!isset(
$defaults[$name])) {
                    continue;
                }

               
$attribute->setAccessible(true);
               
$attribute->setValue($defaults[$name]);
            }
        }
    }

   
/**
     * Restores a super-global variable array from this snapshot.
     *
     * @param Snapshot $snapshot
     * @param $superGlobalArray
     */
   
private function restoreSuperGlobalArray(Snapshot $snapshot, $superGlobalArray)
    {
       
$superGlobalVariables = $snapshot->superGlobalVariables();

        if (isset(
$GLOBALS[$superGlobalArray]) &&
           
is_array($GLOBALS[$superGlobalArray]) &&
            isset(
$superGlobalVariables[$superGlobalArray])) {
           
$keys = array_keys(
               
array_merge(
                   
$GLOBALS[$superGlobalArray],
                   
$superGlobalVariables[$superGlobalArray]
                )
            );

            foreach (
$keys as $key) {
                if (isset(
$superGlobalVariables[$superGlobalArray][$key])) {
                   
$GLOBALS[$superGlobalArray][$key] = $superGlobalVariables[$superGlobalArray][$key];
                } else {
                    unset(
$GLOBALS[$superGlobalArray][$key]);
                }
            }
        }
    }
}


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