[8.x] Add a BladeCompiler::renderComponent() method to render a component instance (#40745)

* Add a BladeCompiler::renderComponent() method to render a component instance

* Fix test

* Update BladeCompiler.php

Co-authored-by: Taylor Otwell <[email protected]>

Author: tobyzerner

src/Illuminate/Support/Facades/Blade.php

@@ -9,6 +9,7 @@
  * @method static bool check(string $name, array ...$parameters)
  * @method static string compileString(string $value)
  * @method static string render(string $string, array $data = [], bool $deleteCachedView = false)
+ * @method static string renderComponent(\Illuminate\View\Component $component)
  * @method static string getPath()
  * @method static string stripParentheses(string $expression)
  * @method static void aliasComponent(string $path, string|null $alias = null)

src/Illuminate/View/Compilers/BladeCompiler.php

@@ -3,7 +3,9 @@
 namespace Illuminate\View\Compilers;
 
 use Illuminate\Container\Container;
+use Illuminate\Contracts\Support\Htmlable;
 use Illuminate\Contracts\View\Factory as ViewFactory;
+use Illuminate\Contracts\View\View;
 use Illuminate\Support\Arr;
 use Illuminate\Support\Str;
 use Illuminate\Support\Traits\ReflectsClosures;
@@ -306,6 +308,30 @@ public function render()
         });
     }
 
+    /**
+     * Render a component instance to HTML.
+     *
+     * @param  \Illuminate\View\Component  $component
+     * @return string
+     */
+    public static function renderComponent(Component $component)
+    {
+        $data = $component->data();
+
+        $view = value($component->resolveView(), $data);
+
+        if ($view instanceof View) {
+            return $view->with($data)->render();
+        } elseif ($view instanceof Htmlable) {
+            return $view->toHtml();
+        } else {
+            return Container::getInstance()
+                ->make(ViewFactory::class)
+                ->make($view, $data)
+                ->render();
+        }
+    }
+
     /**
      * Store the blocks that do not receive compilation.
      *

tests/Integration/View/BladeTest.php

@@ -4,6 +4,7 @@
 
 use Illuminate\Support\Facades\Blade;
 use Illuminate\Support\Facades\View;
+use Illuminate\View\Component;
 use Orchestra\Testbench\TestCase;
 
 class BladeTest extends TestCase
@@ -13,6 +14,13 @@ public function test_rendering_blade_string()
         $this->assertSame('Hello Taylor', Blade::render('Hello {{ $name }}', ['name' => 'Taylor']));
     }
 
+    public function test_rendering_blade_component_instance()
+    {
+        $component = new HelloComponent('Taylor');
+
+        $this->assertSame('Hello Taylor', Blade::renderComponent($component));
+    }
+
     public function test_basic_blade_rendering()
     {
         $view = View::make('hello', ['name' => 'Taylor'])->render();
@@ -110,3 +118,18 @@ protected function getEnvironmentSetUp($app)
         $app['config']->set('view.paths', [__DIR__.'/templates']);
     }
 }
+
+class HelloComponent extends Component
+{
+    public $name;
+
+    public function __construct(string $name)
+    {
+        $this->name = $name;
+    }
+
+    public function render()
+    {
+        return 'Hello {{ $name }}';
+    }
+}