From 6fffceb13fbaf412f770a24f9ff21dafad4bc906 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Oliver=20Scho=CC=88ndorn?= <oliver.schoendorn@icloud.com>
Date: Tue, 5 Sep 2017 16:21:28 +0200
Subject: [PATCH] Added alias argument to share method

---
 Source/DependencyInjector.php          |  8 +++++++-
 Source/DependencyInjectorInterface.php |  3 ++-
 Test/Unit/DependencyInjectorTest.php   | 19 +++++++++++++++++++
 3 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/Source/DependencyInjector.php b/Source/DependencyInjector.php
index 236a8a6..3c3f2a2 100644
--- a/Source/DependencyInjector.php
+++ b/Source/DependencyInjector.php
@@ -89,14 +89,20 @@ public function __construct(ReflectionHandlerInterface $reflectionHandler, Logge
      * The given class instance will be treated like a singleton (at least until overloaded).
      *
      * @param object $classInstance
+     * @param string|null $alias
      *
      * @return DependencyInjectorInterface
      */
-    public function share($classInstance): DependencyInjectorInterface
+    public function share($classInstance, string $alias = null): DependencyInjectorInterface
     {
         $classId = get_class($classInstance);
         $this->logger->debug('Registered shared instance of class {classId}', [ 'classId' => $classId ]);
         $this->sharedInstances[$classId] = $classInstance;
+
+        if ($alias) {
+            $this->alias($classId, $alias);
+        }
+
         return $this;
     }
 
diff --git a/Source/DependencyInjectorInterface.php b/Source/DependencyInjectorInterface.php
index 2c15198..cf186d3 100644
--- a/Source/DependencyInjectorInterface.php
+++ b/Source/DependencyInjectorInterface.php
@@ -40,10 +40,11 @@ public function __construct(ReflectionHandlerInterface $reflectionHandler, Logge
      * The given class instance will be treated like a singleton (at least until overloaded).
      *
      * @param object $classInstance
+     * @param string|null $alias
      *
      * @return DependencyInjectorInterface
      */
-    public function share($classInstance): DependencyInjectorInterface;
+    public function share($classInstance, string $alias = null): DependencyInjectorInterface;
 
     /**
      * Registers a new class id and a factory in order to create instances of the referenced class.
diff --git a/Test/Unit/DependencyInjectorTest.php b/Test/Unit/DependencyInjectorTest.php
index 2593473..1892a0d 100644
--- a/Test/Unit/DependencyInjectorTest.php
+++ b/Test/Unit/DependencyInjectorTest.php
@@ -85,6 +85,25 @@ public function testShare()
         verify($shares[TestClass01::class])->same($instance);
     }
 
+    public function testShareWithAlias()
+    {
+        verify($this->handler)->isInstanceOf(ReflectionHandlerInterface::class);
+        $alias = 'a random alias';
+        $instance = new TestClass01();
+        $di = new DependencyInjector($this->handler, $this->logger);
+        $accessor = new ClassAccessor($di);
+
+        verify($di->share($instance, $alias))->same($di);
+
+        $shares = $accessor->getProperty('sharedInstances');
+        verify(isset($shares[TestClass01::class]))->true();
+        verify($shares[TestClass01::class])->same($instance);
+
+        $aliases = $accessor->getProperty('aliases');
+        verify(isset($aliases[$alias]))->true();
+        verify($aliases[$alias])->equals(TestClass01::class);
+    }
+
     public function testDelegate()
     {
         $delegate = function() {};