/**
* Constructor.
*
* @param Stream $stream
* @param Token|null $expected
*/
public function __construct(Stream $stream, Token $expected = null)
{
$this->actual = $stream->current();
$this->expected = $expected;
$this->tokenLine = $this->actual->getLine();
$message = sprintf('Unexpected token %s at line %d ("%s").', (string) $this->actual, $this->tokenLine, $stream->humanize());
if ($this->expected !== null) {
$message = sprintf('%s Expects token %s.', $message, (string) $this->expected);
}
parent::__construct($message);
}
