[5.6] Allow the use of component('alias') as mentioned in the documentation

src/Illuminate/View/Compilers/BladeCompiler.php

@@ -4,6 +4,7 @@
 
 use Illuminate\Support\Arr;
 use Illuminate\Support\Str;
+use Illuminate\Support\Facades\View;
 
 class BladeCompiler extends Compiler implements CompilerInterface
 {
@@ -435,6 +436,8 @@ public function component($path, $alias = null)
     {
         $alias = $alias ?: array_last(explode('.', $path));
 
+        View::setComponentAlias($path, $alias);
+
         $this->directive($alias, function ($expression) use ($path) {
             return $expression
                         ? "<?php \$__env->startComponent('{$path}', {$expression}); ?>"

src/Illuminate/View/Concerns/ManagesComponents.php

@@ -34,6 +34,23 @@ trait ManagesComponents
      */
     protected $slotStack = [];
 
+    /**
+     * The component aliases.
+     */
+    protected $componentAliases = [];
+
+    /**
+     * Set a component alias.
+     *
+     * @param  string  $path
+     * @param  string  $alias
+     * @return void
+     */
+    public function setComponentAlias($path, $alias)
+    {
+        $this->componentAliases[$alias] = $path;
+    }
+
     /**
      * Start a component rendering process.
      *
@@ -44,7 +61,7 @@ trait ManagesComponents
     public function startComponent($name, array $data = [])
     {
         if (ob_start()) {
-            $this->componentStack[] = $name;
+            $this->componentStack[] = $this->componentAliases[$name] ?? $name;
 
             $this->componentData[$this->currentComponent()] = $data;
 

tests/View/Blade/AbstractBladeTestCase.php

@@ -4,15 +4,22 @@
 
 use Mockery as m;
 use PHPUnit\Framework\TestCase;
+use Illuminate\Support\Facades\View;
 use Illuminate\View\Compilers\BladeCompiler;
 
 abstract class AbstractBladeTestCase extends TestCase
 {
     protected $compiler;
+    protected $viewFactory;
 
     public function setUp()
     {
         $this->compiler = new BladeCompiler(m::mock('Illuminate\Filesystem\Filesystem'), __DIR__);
+
+        $this->viewFactory = m::mock('Illuminate\View\Factory');
+
+        View::swap($this->viewFactory);
+
         parent::setUp();
     }
 

tests/View/Blade/BladeCustomTest.php

@@ -93,6 +93,8 @@ public function testCustomIfElseConditions()
 
     public function testCustomComponents()
     {
+        $this->viewFactory->shouldReceive('setComponentAlias')->with('app.components.alert', 'alert');
+
         $this->compiler->component('app.components.alert', 'alert');
 
         $string = '@alert
@@ -104,6 +106,8 @@ public function testCustomComponents()
 
     public function testCustomComponentsWithSlots()
     {
+        $this->viewFactory->shouldReceive('setComponentAlias')->with('app.components.alert', 'alert');
+
         $this->compiler->component('app.components.alert', 'alert');
 
         $string = '@alert([\'type\' => \'danger\'])
@@ -115,6 +119,8 @@ public function testCustomComponentsWithSlots()
 
     public function testCustomComponentsDefaultAlias()
     {
+        $this->viewFactory->shouldReceive('setComponentAlias')->with('app.components.alert', 'alert');
+
         $this->compiler->component('app.components.alert');
 
         $string = '@alert

tests/View/ViewFactoryTest.php

@@ -336,6 +336,23 @@ public function testComponentHandling()
         $this->assertEquals('title<hr> component Taylor laravel.com', $contents);
     }
 
+    public function testComponentHandlingWithAlias()
+    {
+        $factory = $this->getFactory();
+        $factory->getFinder()->shouldReceive('find')->with('component-path')->andReturn(__DIR__.'/fixtures/component.php');
+        $factory->getEngineResolver()->shouldReceive('resolve')->andReturn(new \Illuminate\View\Engines\PhpEngine);
+        $factory->getDispatcher()->shouldReceive('dispatch');
+        $factory->setComponentAlias('component-path', 'component-alias');
+        $factory->startComponent('component-alias', ['name' => 'Taylor']);
+        $factory->slot('title');
+        $factory->slot('website', 'laravel.com');
+        echo 'title<hr>';
+        $factory->endSlot();
+        echo 'component';
+        $contents = $factory->renderComponent();
+        $this->assertEquals('title<hr> component Taylor laravel.com', $contents);
+    }
+
     public function testTranslation()
     {
         $container = new \Illuminate\Container\Container;