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	diff --git a/omnitools/src/Reflection/CodeClass.php b/omnitools/src/Reflection/CodeClass.php
	index 1a7d9d0..d827e76 100644
	--- a/omnitools/src/Reflection/CodeClass.php
	+++ b/omnitools/src/Reflection/CodeClass.php
	@@ -1,107 +1,111 @@
	<?php
	declare(strict_types=1);

	namespace Keruald\OmniTools\Reflection;

	use Keruald\OmniTools\Collections\Vector;

	use InvalidArgumentException;
	use ReflectionClass;
	use ReflectionException;
	use ReflectionMethod;

	class CodeClass {

	///
	/// CodeClass constructor
	///

	public function __construct (
	private readonly string $className,
	) {
	}

	+ public static function from (object $object) : self {
	+ return new self($object::class);
	+ }
	+
	///
	/// Class name helper methods
	///

	public function getClassName () : string {
	return $this->className;
	}

	/**
	* @throws ReflectionException
	*/
	public function getShortClassName () : string {
	$class = new ReflectionClass($this->className);

	return $class->getShortName();
	}

	///
	/// Represented class constructor helper methods
	///

	/**
	* @throws ReflectionException
	* @throws InvalidArgumentException
	*/
	public function getConstructor () : ReflectionMethod {
	$class = new ReflectionClass($this->className);
	$constructor = $class->getConstructor();

	return match ($constructor) {
	null => throw new InvalidArgumentException(
	"This class doesn't have a constructor."
	),
	default => $constructor,
	};
	}

	/**
	* @throws ReflectionException
	*/
	public function getConstructorArgumentsTypes () : Vector {
	$class = new ReflectionClass($this->className);
	$constructor = $class->getConstructor();

	if ($constructor === null) {
	return new Vector;
	}

	return CodeMethod::fromReflectionMethod($constructor)
	->getArgumentsType();
	}

	/**
	*
	* This method can be used for dependency injection to build a class,
	* like a controller in a MVC model, from a services' container.
	*
	* Each argument of the constructor is substituted by an item from
	* $services. To match properly services and constructor arguments,
	* each arguments need to have a type, and those types should properly
	* exist in $services, without duplicate.
	*
	* @param iterable $services a collection with keys as type names and values
	* @return object A new instance of the reflected class
	* @throws ReflectionException
	*/
	public function newInstanceFromServices (iterable $services) : object {
	$args = $this->getConstructorArgumentsTypes()
	->map(function (string $type) use ($services) : mixed {
	foreach ($services as $value) {
	if (CodeVariable::from($value)->hasType($type)) {
	return $value;
	}
	}

	throw new InvalidArgumentException("No instance of type $type can be found.");
	});

	$class = new ReflectionClass($this->className);
	return $class->newInstance(...$args);

	}

	}
	diff --git a/omnitools/tests/Reflection/CodeClassTest.php b/omnitools/tests/Reflection/CodeClassTest.php
	index 60d56b2..00fb36d 100644
	--- a/omnitools/tests/Reflection/CodeClassTest.php
	+++ b/omnitools/tests/Reflection/CodeClassTest.php
	@@ -1,121 +1,129 @@
	<?php
	declare(strict_types=1);

	namespace Keruald\OmniTools\Tests\Reflection;

	use Keruald\OmniTools\Collections\ArrayUtilities;
	use Keruald\OmniTools\Collections\HashMap;
	use Keruald\OmniTools\Collections\Vector;
	use Keruald\OmniTools\DateTime\DateStamp;
	use Keruald\OmniTools\HTTP\Requests\Request;
	use Keruald\OmniTools\Network\IPv4Range;
	use Keruald\OmniTools\Reflection\CodeClass;

	use PHPUnit\Framework\TestCase;

	use InvalidArgumentException;

	class CodeClassTest extends TestCase {

	private CodeClass $class;

	protected function setUp () : void {
	$this->class = new CodeClass(AcmeApplication::class);
	}

	+ public function testFrom () {
	+ $date = new DateStamp(2010, 11, 25);
	+ $class = CodeClass::from($date);
	+
	+ $this->assertInstanceOf(CodeClass::class, $class);
	+ $this->assertEquals(DateStamp::class, $class->getClassName());
	+ }
	+
	public function testGetClassName () {
	$this->assertEquals(
	AcmeApplication::class,
	$this->class->getClassName(),
	);
	}

	public function testGetShortClassName () {
	$this->assertEquals(
	"AcmeApplication",
	$this->class->getShortClassName(),
	);
	}

	public function testNewInstanceFromServices () {
	$services = [
	// Some objects (in different order than the constructor)
	"request" => new Request(),
	"date" => DateStamp::fromUnixTime(), // another name than in class
	"session" => new HashMap(),

	// Scalar values
	"counter" => 666,
	"isSecure" => false,
	"temperature" => 26.6,
	"inventory" => [],

	// An object not needed by the controller
	"ip_range" => IPv4Range::from("127.0.0.1/32"),
	];

	$app = $this->class->newInstanceFromServices($services);

	$this->assertInstanceOf(AcmeApplication::class, $app);
	$this->assertEquals($services["date"], $app->getDateStamp());
	}

	public function testNewInstanceFromServicesWithMissingService () {
	$incompleteServices = [
	"foo",
	];

	$this->expectException(InvalidArgumentException::class);
	$this->class->newInstanceFromServices($incompleteServices);
	}

	public function testNewInstanceFromServicesWithoutConstructor () {
	$services = [
	"foo",
	];

	$class = new CodeClass(ArrayUtilities::class); // No constructor
	$utilities = $class->newInstanceFromServices($services);

	$this->assertInstanceOf(ArrayUtilities::class, $utilities);
	}

	public function testGetConstructorArgumentsTypes () {
	$expected = Vector::from([
	Request::class,
	HashMap::class,
	DateStamp::class,
	"int",
	"array",
	"float",
	"bool",
	]);

	$actual = $this->class->getConstructorArgumentsTypes();
	$this->assertEquals($expected, $actual);
	}

	public function testGetConstructorArgumentsTypesWhenNotExisting () {
	$class = new CodeClass(ArrayUtilities::class); // No constructor

	$this->assertEquals(new Vector, $class->getConstructorArgumentsTypes());
	}

	public function testGetConstructor () {
	$constructor = $this->class->getConstructor();

	$this->assertEquals("__construct", $constructor->getName());
	$this->assertEquals(
	AcmeApplication::class,
	$constructor->getDeclaringClass()->getName()
	);
	}

	public function testGetConstructorWhenNotExisting () {
	$this->expectException(InvalidArgumentException::class);

	$class = new CodeClass(ArrayUtilities::class); // No constructor
	$class->getConstructor();
	}

	}

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