laravel服务容器延迟加载

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<?php

namespace App\Providers;

use App\Repositories\RecommendRepository;
use Illuminate\Support\ServiceProvider;

class HotcastProvider extends ServiceProvider
{
    /**
     * 服务提供者加是否延迟加载.
     *
     * @var bool
     */
    protected $defer = true;

    /**
     * Bootstrap the application services.
     *
     * @return void
     */
    public function boot()
    {
        //
    }

    /**
     * Register the application services.
     *
     * @return void
     */
    public function register()
    {

        $this->app->bind('App\Repositories\Contract\RecommendInterface','App\Repositories\RecommendRepository');

        $this->app->singleton('RecommendFacade',function (){
            return new RecommendRepository();
        });

    }

    /**
     * 获取由提供者提供的服务.
     *
     * @return array
     */
    public function provides()
    {
        return ['RecommendFacade','App\Repositories\Contract\RecommendInterface'];
    }
}