added Factory::fromCallable()

Author: dg

src/PhpGenerator/Factory.php

@@ -101,6 +101,16 @@ public function fromFunctionReflection(\ReflectionFunction $from)
 	}
 
 
+	/** @return Method|GlobalFunction|Closure */
+	public function fromCallable(callable $from)
+	{
+		$ref = Nette\Utils\Callback::toReflection($from);
+		return $ref instanceof \ReflectionMethod
+			? self::fromMethodReflection($ref)
+			: self::fromFunctionReflection($ref);
+	}
+
+
 	public function fromParameterReflection(\ReflectionParameter $from): Parameter
 	{
 		$param = new Parameter($from->getName());

tests/PhpGenerator/Factory.phpt

@@ -38,3 +38,13 @@ Assert::same('trim', $res->getName());
 
 $res = $factory->fromFunctionReflection(new \ReflectionFunction(function () {}));
 Assert::type(Nette\PhpGenerator\Closure::class, $res);
+
+
+$res = $factory->fromCallable('trim');
+Assert::type(Nette\PhpGenerator\GlobalFunction::class, $res);
+Assert::same('trim', $res->getName());
+
+
+$res = $factory->fromCallable([new ReflectionClass(stdClass::class), 'getName']);
+Assert::type(Nette\PhpGenerator\Method::class, $res);
+Assert::same('getName', $res->getName());