final public function replaceChildren()

in src/core/Node.hack [129:158]

• 29 lines of code
• 10 McCabe index (conditional complexity)

  final public function replaceChildren(\XHPChild ...$children): this {
    if ($this->__isRendered) {
      throw new UseAfterRenderException(
        Str\format("Can't %s after render", __FUNCTION__),
      );
    }
    // This function has been micro-optimized
    $new_children = vec[];
    foreach ($children as $xhp) {
      if ($xhp is frag) {
        foreach ($xhp->children as $child) {
          $new_children[] = $child;
        }
      } else if (!($xhp is Traversable<_>)) {
        $new_children[] = $xhp;
      } else {
        foreach ($xhp as $element) {
          if ($element is frag) {
            foreach ($element->children as $child) {
              $new_children[] = $child;
            }
          } else if ($element !== null) {
            $new_children[] = $element as \XHPChild;
          }
        }
      }
    }
    $this->children = $new_children;
    return $this;
  }