protected function reduceRule171() {
$this->semValue = new Stmt\Interface_($this->semStack[$this->stackPos-(6-2)], ['extends' => $this->semStack[$this->stackPos-(6-3)], 'stmts' => $this->semStack[$this->stackPos-(6-5)]], $this->startAttributeStack[$this->stackPos-(6-1)] + $this->endAttributes);
$this->checkInterface($this->semValue, $this->stackPos-(6-2));
}