Upgrade framework

vendor/league/commonmark/src/Node/Block/AbstractBlock.php

@@ -0,0 +1,63 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the league/commonmark package.
+ *
+ * (c) Colin O'Dell <colinodell@gmail.com>
+ *
+ * Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
+ *  - (c) John MacFarlane
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace League\CommonMark\Node\Block;
+
+use League\CommonMark\Node\Node;
+
+/**
+ * Block-level element
+ *
+ * @method parent() ?AbstractBlock
+ */
+abstract class AbstractBlock extends Node
+{
+    protected ?int $startLine = null;
+
+    protected ?int $endLine = null;
+
+    protected function setParent(?Node $node = null): void
+    {
+        if ($node && ! $node instanceof self) {
+            throw new \InvalidArgumentException('Parent of block must also be block (cannot be inline)');
+        }
+
+        parent::setParent($node);
+    }
+
+    public function setStartLine(?int $startLine): void
+    {
+        $this->startLine = $startLine;
+        if ($this->endLine === null) {
+            $this->endLine = $startLine;
+        }
+    }
+
+    public function getStartLine(): ?int
+    {
+        return $this->startLine;
+    }
+
+    public function setEndLine(?int $endLine): void
+    {
+        $this->endLine = $endLine;
+    }
+
+    public function getEndLine(): ?int
+    {
+        return $this->endLine;
+    }
+}