function FrontMatterParseException::__construct

Constructs a new FrontMatterParseException instance.

Parameters

\Drupal\Component\Serialization\Exception\InvalidDataTypeException $exception: The exception thrown when attempting to parse front matter data.

File

core/lib/Drupal/Component/FrontMatter/Exception/FrontMatterParseException.php, line 30

Class

FrontMatterParseException

Defines a class for front matter parsing exceptions.

Namespace

Code

public function __construct(InvalidDataTypeException $exception) {
    $this->sourceLine = 1;
    // Attempt to extract the line number from the serializer error. This isn't
    // a very stable way to do this, however it is the only way given that
    // \Drupal\Component\Serialization\SerializationInterface does not have
    // methods for accessing this kind of information reliably.
    $message = 'An error occurred when attempting to parse front matter data';
    if ($exception) {
        preg_match('/line:?\\s?(\\d+)/i', $exception->getMessage(), $matches);
        if (!empty($matches[1])) {
            $message .= ' on line %d';
            // Add any matching line count to the existing source line so it
            // increases it by 1 to account for the front matter separator (---).
            $this->sourceLine += (int) $matches[1];
        }
    }
    parent::__construct(sprintf($message, $this->sourceLine), 0, $exception);
}