1<?php
2
3/*
4 * This file is part of the league/commonmark package.
5 *
6 * (c) Colin O'Dell <colinodell@gmail.com>
7 *
8 * Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
9 *  - (c) John MacFarlane
10 *
11 * For the full copyright and license information, please view the LICENSE
12 * file that was distributed with this source code.
13 */
14
15namespace League\CommonMark;
16
17use League\CommonMark\Block\Element\AbstractBlock;
18
19/**
20 * @internal
21 */
22class UnmatchedBlockCloser
23{
24    /**
25     * @var ContextInterface
26     */
27    private $context;
28
29    /**
30     * @var AbstractBlock
31     */
32    private $oldTip;
33
34    /**
35     * @var AbstractBlock
36     */
37    private $lastMatchedContainer;
38
39    /**
40     * @param ContextInterface $context
41     */
42    public function __construct(ContextInterface $context)
43    {
44        $this->context = $context;
45
46        $this->resetTip();
47    }
48
49    /**
50     * @param AbstractBlock $block
51     *
52     * @return void
53     */
54    public function setLastMatchedContainer(AbstractBlock $block)
55    {
56        $this->lastMatchedContainer = $block;
57    }
58
59    /**
60     * @return void
61     */
62    public function closeUnmatchedBlocks()
63    {
64        $endLine = $this->context->getLineNumber() - 1;
65
66        while ($this->oldTip !== $this->lastMatchedContainer) {
67            /** @var AbstractBlock $oldTip */
68            $oldTip = $this->oldTip->parent();
69            $this->oldTip->finalize($this->context, $endLine);
70            $this->oldTip = $oldTip;
71        }
72    }
73
74    /**
75     * @return void
76     */
77    public function resetTip()
78    {
79        if ($this->context->getTip() === null) {
80            throw new \RuntimeException('No tip to reset to');
81        }
82
83        $this->oldTip = $this->context->getTip();
84    }
85
86    public function areAllClosed(): bool
87    {
88        return $this->context->getTip() === $this->lastMatchedContainer;
89    }
90}
91