php - 如何优化我的特征代码以避免在子类中具有相同值的两个属性

Question

我有这段代码，但我觉得有些不对劲。我必须为两个不同的属性分配相同的值。一个来自我的特质，另一个来自我现在的班级。

我希望我可以完全隔离我的特征，而不必在我的子类构造函数中进行此分配。

代码：

interface ARepoInterface extends BaseRepoInterface {}

interface BRepoInterface extends BaseRepoInterface {}


trait Foo {
    protected BaseRepoInterface $repo;

    public function method(array $array): void {
      // Do stuff with $repo
    }
}

class A
{
    private ARepoInterface $ARepo;
    protected BaseRepoInterface $repo;

    use Foo;

    public function __construct(ARepoInterface $ARepo)
    {
        //@todo This is weird
        $this->ARepo = $this->repo = $ARepo;
    }
    //Other methods
}

class B
{
    private BRepoInterface $BRepo;
    protected BaseRepoInterface $repo;

    use Foo;

    public function __construct(BRepoInterface $BRepo)
    {
        //@todo This is weird
        $this->BRepo = $this->repo = $BRepo;
    }
    //Other methods
}

预先感谢您的建议

Answer 1

事实上 PHP 并不关心类型提示，所以一个属性就足够了。

interface ARepoInterface extends BaseRepoInterface { public function A(); }

class A
{
    use Foo;

    public function __construct(ARepoInterface $ARepo)
    {
        $this->repo = $ARepo;
    }

    public function methodDoStuffWithARepoInterface()
    {
        $this->repo->A();
    }
}

别担心，智能感知仍然有效。