bound()

From \vendor\laravel\framework\src\Illuminate\Container\Container.php

/**
 * 判断给定的抽像类是否已经与该容器绑定。
 *
 * @param  string  $abstract
 * @return bool
 */
public function bound($abstract)
{
    $abstract = $this->normalize($abstract);

    return isset($this->bindings[$abstract]) || isset($this->instances[$abstract]) || $this->isAlias($abstract);
}

resolved()

From \vendor\laravel\framework\src\Illuminate\Container\Container.php

/**
 * 判断给定的抽像类是否已经处理.
 *
 * @param  string  $abstract
 * @return bool
 */
public function resolved($abstract)
{
    $abstract = $this->normalize($abstract);

    if ($this->isAlias($abstract)) {
        $abstract = $this->getAlias($abstract);
    }

    return isset($this->resolved[$abstract]) || isset($this->instances[$abstract]);
}

spl_autoload_register()

spl_autoload_register — 注册给定的函数作为 __autoload 的实现
https://secure.php.net/manual/zh/function.spl-autoload-register.php

class_alias()

class_alias — 为一个类创建别名
https://secure.php.net/manual/zh/function.class-alias.php

Pipeline