1 files changed, 50 insertions, 0 deletions
diff --git a/vendor/ramsey/collection/src/AbstractSet.php b/vendor/ramsey/collection/src/AbstractSet.php
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+++ b/vendor/ramsey/collection/src/AbstractSet.php
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+<?php
+
+/**
+ * This file is part of the ramsey/collection library
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
+ * @license http://opensource.org/licenses/MIT MIT
+ */
+
+declare(strict_types=1);
+
+namespace Ramsey\Collection;
+
+/**
+ * This class contains the basic implementation of a collection that does not
+ * allow duplicated values (a set), to minimize the effort required to implement
+ * this specific type of collection.
+ *
+ * @template T
+ * @template-extends AbstractCollection<T>
+ */
+abstract class AbstractSet extends AbstractCollection
+{
+    /**
+     * @inheritDoc
+     */
+    public function add($element): bool
+    {
+        if ($this->contains($element)) {
+            return false;
+        }
+
+        return parent::add($element);
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function offsetSet($offset, $value): void
+    {
+        if ($this->contains($value)) {
+            return;
+        }
+
+        parent::offsetSet($offset, $value);
+    }
+}