function OutputFormatterStyleStack::pop

Pops a style from the stack.

Throws

InvalidArgumentException When style tags incorrectly nested

File

vendor/symfony/console/Formatter/OutputFormatterStyleStack.php, line 56

Class

OutputFormatterStyleStack

@author Jean-François Simon <contact@jfsimon.fr>

Namespace

Symfony\Component\Console\Formatter

Code

public function pop(?OutputFormatterStyleInterface $style = null) : OutputFormatterStyleInterface {
    if (!$this->styles) {
        return $this->emptyStyle;
    }
    if (null === $style) {
        return array_pop($this->styles);
    }
    foreach (array_reverse($this->styles, true) as $index => $stackedStyle) {
        if ($style->apply('') === $stackedStyle->apply('')) {
            $this->styles = \array_slice($this->styles, 0, $index);
            return $stackedStyle;
        }
    }
    throw new InvalidArgumentException('Incorrectly nested style tag found.');
}