public function filter(\Closure $c)
{
$variableDeclarationList = [];
$blockList = [];
if ($this->variableDeclarationList !== null) {
$variableDeclarationList = $this->variableDeclarationList->filter($c);
}
if ($this->blockList !== null) {
$blockList = $this->blockList->filter($c);
}
return array_merge($variableDeclarationList, $blockList);
}
