Container: added getServiceType()

Author: lookyman

src/DI/Container.php

@@ -106,6 +106,26 @@ public function getService($name)
 	}
 
 
+	/**
+	 * Gets the service type by name.
+	 * @param  string
+	 * @return string
+	 * @throws MissingServiceException
+	 */
+	public function getServiceType($name)
+	{
+		if (isset($this->meta[self::ALIASES][$name])) {
+			return $this->getServiceType($this->meta[self::ALIASES][$name]);
+
+		} elseif (isset($this->meta[self::SERVICES][$name])) {
+			return $this->meta[self::SERVICES][$name];
+
+		} else {
+			throw new MissingServiceException("Service '$name' not found.");
+		}
+	}
+
+
 	/**
 	 * Does the service exist?
 	 * @param  string service name

tests/DI/Container.getServiceType.phpt

@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * Test: Nette\DI\Container getServiceType.
+ */
+
+use Nette\DI\Container;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+class MyContainer extends Container
+{
+
+	protected $meta = [
+		'services' => [
+			'one' => 'One',
+			'two' => 'Two',
+		],
+		'aliases' => [
+			'three' => 'one',
+		],
+	];
+
+}
+
+
+$container = new MyContainer;
+
+Assert::same('One', $container->getServiceType('one'));
+Assert::same('Two', $container->getServiceType('two'));
+Assert::same('One', $container->getServiceType('three'));
+
+Assert::exception(function () use ($container) {
+	$container->getServiceType('four');
+}, Nette\DI\MissingServiceException::class, "Service 'four' not found.");