Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/zendframework/zend-stdlib/src/AbstractOptions.php

@@ -0,0 +1,176 @@
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link      http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Stdlib;
+
+use Traversable;
+
+abstract class AbstractOptions implements ParameterObjectInterface
+{
+    /**
+     * We use the __ prefix to avoid collisions with properties in
+     * user-implementations.
+     *
+     * @var bool
+     */
+    protected $__strictMode__ = true;
+
+    /**
+     * Constructor
+     *
+     * @param  array|Traversable|null $options
+     */
+    public function __construct($options = null)
+    {
+        if (null !== $options) {
+            $this->setFromArray($options);
+        }
+    }
+
+    /**
+     * Set one or more configuration properties
+     *
+     * @param  array|Traversable|AbstractOptions $options
+     * @throws Exception\InvalidArgumentException
+     * @return AbstractOptions Provides fluent interface
+     */
+    public function setFromArray($options)
+    {
+        if ($options instanceof self) {
+            $options = $options->toArray();
+        }
+
+        if (!is_array($options) && !$options instanceof Traversable) {
+            throw new Exception\InvalidArgumentException(
+                sprintf(
+                    'Parameter provided to %s must be an %s, %s or %s',
+                    __METHOD__,
+                    'array',
+                    'Traversable',
+                    'Zend\Stdlib\AbstractOptions'
+                )
+            );
+        }
+
+        foreach ($options as $key => $value) {
+            $this->__set($key, $value);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Cast to array
+     *
+     * @return array
+     */
+    public function toArray()
+    {
+        $array = [];
+        $transform = function ($letters) {
+            $letter = array_shift($letters);
+            return '_' . strtolower($letter);
+        };
+        foreach ($this as $key => $value) {
+            if ($key === '__strictMode__') {
+                continue;
+            }
+            $normalizedKey = preg_replace_callback('/([A-Z])/', $transform, $key);
+            $array[$normalizedKey] = $value;
+        }
+        return $array;
+    }
+
+    /**
+     * Set a configuration property
+     *
+     * @see ParameterObject::__set()
+     * @param string $key
+     * @param mixed $value
+     * @throws Exception\BadMethodCallException
+     * @return void
+     */
+    public function __set($key, $value)
+    {
+        $setter = 'set' . str_replace('_', '', $key);
+
+        if (is_callable([$this, $setter])) {
+            $this->{$setter}($value);
+
+            return;
+        }
+
+        if ($this->__strictMode__) {
+            throw new Exception\BadMethodCallException(sprintf(
+                'The option "%s" does not have a callable "%s" ("%s") setter method which must be defined',
+                $key,
+                'set' . str_replace(' ', '', ucwords(str_replace('_', ' ', $key))),
+                $setter
+            ));
+        }
+    }
+
+    /**
+     * Get a configuration property
+     *
+     * @see ParameterObject::__get()
+     * @param string $key
+     * @throws Exception\BadMethodCallException
+     * @return mixed
+     */
+    public function __get($key)
+    {
+        $getter = 'get' . str_replace('_', '', $key);
+
+        if (is_callable([$this, $getter])) {
+            return $this->{$getter}();
+        }
+
+        throw new Exception\BadMethodCallException(sprintf(
+            'The option "%s" does not have a callable "%s" getter method which must be defined',
+            $key,
+            'get' . str_replace(' ', '', ucwords(str_replace('_', ' ', $key)))
+        ));
+    }
+
+    /**
+     * Test if a configuration property is null
+     * @see ParameterObject::__isset()
+     * @param string $key
+     * @return bool
+     */
+    public function __isset($key)
+    {
+        $getter = 'get' . str_replace('_', '', $key);
+
+        return method_exists($this, $getter) && null !== $this->__get($key);
+    }
+
+    /**
+     * Set a configuration property to NULL
+     *
+     * @see ParameterObject::__unset()
+     * @param string $key
+     * @throws Exception\InvalidArgumentException
+     * @return void
+     */
+    public function __unset($key)
+    {
+        try {
+            $this->__set($key, null);
+        } catch (Exception\BadMethodCallException $e) {
+            throw new Exception\InvalidArgumentException(
+                'The class property $' . $key . ' cannot be unset as'
+                . ' NULL is an invalid value for it',
+                0,
+                $e
+            );
+        }
+    }
+}