public function getFirstChildx()

in src/core/Node.hack [192:198]

• 7 lines of code
• 2 McCabe index (conditional complexity)

  public function getFirstChildx(): \XHPChild {
    $child = $this->getFirstChild();
    if ($child is nonnull) {
      return $child;
    }
    invariant_violation('%s called on element with no children', __FUNCTION__);
  }