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\Block\Renderer;
16
17use League\CommonMark\Block\Element\AbstractBlock;
18use League\CommonMark\Block\Element\Document;
19use League\CommonMark\ElementRendererInterface;
20
21final class DocumentRenderer implements BlockRendererInterface
22{
23    /**
24     * @param Document                 $block
25     * @param ElementRendererInterface $htmlRenderer
26     * @param bool                     $inTightList
27     *
28     * @return string
29     */
30    public function render(AbstractBlock $block, ElementRendererInterface $htmlRenderer, bool $inTightList = false)
31    {
32        if (!($block instanceof Document)) {
33            throw new \InvalidArgumentException('Incompatible block type: ' . \get_class($block));
34        }
35
36        $wholeDoc = $htmlRenderer->renderBlocks($block->children());
37
38        return $wholeDoc === '' ? '' : $wholeDoc . "\n";
39    }
40}
41