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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the league/commonmark package. |
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* |
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* (c) Colin O'Dell <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace League\CommonMark\Extension\TableOfContents; |
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use League\CommonMark\Configuration\ConfigurationAwareInterface; |
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use League\CommonMark\Configuration\ConfigurationInterface; |
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use League\CommonMark\Extension\TableOfContents\Node\TableOfContentsPlaceholder; |
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use League\CommonMark\Node\Block\AbstractBlock; |
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use League\CommonMark\Parser\Block\AbstractBlockContinueParser; |
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use League\CommonMark\Parser\Block\BlockContinue; |
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use League\CommonMark\Parser\Block\BlockContinueParserInterface; |
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use League\CommonMark\Parser\Block\BlockStart; |
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use League\CommonMark\Parser\Block\BlockStartParserInterface; |
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use League\CommonMark\Parser\Cursor; |
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use League\CommonMark\Parser\MarkdownParserStateInterface; |
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final class TableOfContentsPlaceholderParser extends AbstractBlockContinueParser |
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{ |
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/** |
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* @var TableOfContentsPlaceholder |
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* |
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* @psalm-readonly |
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*/ |
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private $block; |
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public function __construct() |
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{ |
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$this->block = new TableOfContentsPlaceholder(); |
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} |
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public function getBlock(): AbstractBlock |
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{ |
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return $this->block; |
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} |
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public function tryContinue(Cursor $cursor, BlockContinueParserInterface $activeBlockParser): ?BlockContinue |
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{ |
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return BlockContinue::none(); |
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} |
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public static function blockStartParser(): BlockStartParserInterface |
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{ |
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return new class () implements BlockStartParserInterface, ConfigurationAwareInterface { |
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/** |
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* @var ConfigurationInterface |
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* |
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* @psalm-readonly-allow-private-mutation |
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*/ |
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private $config; |
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public function tryStart(Cursor $cursor, MarkdownParserStateInterface $parserState): ?BlockStart |
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{ |
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$placeholder = $this->config->get('table_of_contents/placeholder'); |
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if ($placeholder === null) { |
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return BlockStart::none(); |
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} |
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// The placeholder must be the only thing on the line |
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if ($cursor->match('/^' . \preg_quote($placeholder, '/') . '$/') === null) { |
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return BlockStart::none(); |
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} |
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return BlockStart::of(new TableOfContentsPlaceholderParser())->at($cursor); |
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} |
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public function setConfiguration(ConfigurationInterface $configuration): void |
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{ |
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$this->config = $configuration; |
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} |
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}; |
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} |
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} |
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thephpleague /
commonmark
Loading history...
This check looks for function or method calls that always return null and whose return value is used.
The method
getObject()can return nothing but null, so it makes no sense to use the return value.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.