参考资料：
php:laravel底层外围代码剖析之make办法的实现
Laravel加载过程---make办法

实例化Illuminate\Contracts\Http\Kernel

make办法

/public/index.php
$app = require_once __DIR__.'/../bootstrap/app.php';$kernel = $app->make(Illuminate\Contracts\Http\Kernel::class);
$app->make() => 父类Application中的make() => resolve()办法

resolve办法

vendor/laravel/framework/src/Illuminate/Container/Container.php
/** * 第一次调用 * $abstract Illuminate\Contracts\Http\Kernel::class * $concrete 匿名函数 *  * 第二次调用 * $abstract 'App\Http\Kernel' * $concrete 'App\Http\Kernel' （getConcrete办法返回） * 执行build()办法获取App\Http\Kernel的实例化对象，返回给getClosure() */protected function resolve($abstract, $parameters = [], $raiseEvents = true){       ...    //依据$abstract从bindings数组中获取$concrete匿名函数    $concrete = $this->getConcrete($abstract);    //判断$concrete和$abstract是否雷同，或者$concrete是一个匿名函数    if ($this->isBuildable($concrete, $abstract)) {        //实例化$concrete的类        $object = $this->build($concrete);    } else {        //递归执行make        $object = $this->make($concrete);    }    ... }

getClosure()办法递归调用

/** * 第一次调用 * $abstract 'Illuminate\Contracts\Http\Kernel' * $concrete 'App\Http\Kernel' *  * 第二次调用 * 获取App\Http\Kernel的实例，向上返回给build()办法 */protected function getClosure($abstract, $concrete){    return function ($container, $parameters = []) use ($abstract, $concrete) {        if ($abstract == $concrete) {            return $container->build($concrete);        }        return $container->resolve($concrete, $parameters, $raiseEvents = false);    };}

build办法

vendor/laravel/framework/src/Illuminate/Container/Container.php
/** * 第一次调用 * $concrete 匿名函数 *  * 第二次调用 * $concrete 'App\Http\Kernel'  * 执行反射，获取App\Http\Kernel类的实例化对象 * 返回给resolve()办法 */public function build($concrete){    if ($concrete instanceof Closure) {        //bind()办法中$concrete = $this->getClosure($abstract, $concrete);        return $concrete($this, $this->getLastParameterOverride());    }    $reflector = new ReflectionClass($concrete);    if (! $reflector->isInstantiable()) {        return $this->notInstantiable($concrete);    }    $this->buildStack[] = $concrete;    $constructor = $reflector->getConstructor();    if (is_null($constructor)) {        array_pop($this->buildStack);        return new $concrete;    }    $dependencies = $constructor->getParameters();    $instances = $this->resolveDependencies(        $dependencies    );    array_pop($this->buildStack);    return $reflector->newInstanceArgs($instances);}