php-flasher/src/Laravel/ServiceProvider/Providers/Laravel50.php

<?php

namespace Flasher\Laravel\ServiceProvider\Providers;

use Illuminate\Foundation\Application;
use Illuminate\Support\Facades\Blade;

final class Laravel50 extends Laravel
{
    public function shouldBeUsed()
    {
        return $this->app instanceof Application && 0 === strpos(Application::VERSION, '5.0');
    }

    public function registerBladeDirectives()
    {
        Blade::extend(function ($view, $compiler) {
            $pattern = $compiler->createPlainMatcher('flasher_render(.*)');

            return preg_replace($pattern, '$1<?php echo app(\'flasher.presenter.html\')->render($2); ?>', $view);
        });
    }
}