PhpReflection::getReturnType() can handle PHP 7.1 nullable types

src/DI/PhpReflection.php

@@ -84,7 +84,7 @@ public static function getParameterType(\ReflectionParameter $param)
 	public static function getReturnType(\ReflectionFunctionAbstract $func)
 	{
 		if (PHP_VERSION_ID >= 70000 && $func->hasReturnType()) {
-			$type = (string) $func->getReturnType();
+			$type = PHP_VERSION_ID >= 70100 ? $func->getReturnType()->getName() : (string) $func->getReturnType();
 			return strtolower($type) === 'self' ? $func->getDeclaringClass()->getName() : $type;
 		}
 		$type = preg_replace('#[|\s].*#', '', (string) self::parseAnnotation($func, 'return'));

tests/DI/PhpReflection.getReturnType.php71.phpt

@@ -0,0 +1,90 @@
+<?php
+
+/**
+ * Test: Nette\DI\PhpReflection::getReturnType
+ * @phpversion 7.1
+ */
+
+namespace NS
+{
+	use Test\B;
+
+	class A
+	{
+		function noType()
+		{}
+
+		function classType(): B
+		{}
+
+		function nativeType(): string
+		{}
+
+		function selfType(): self
+		{}
+
+		function nullableClassType(): ?B
+		{}
+
+		function nullableNativeType(): ?string
+		{}
+
+		function nullableSelfType(): ?self
+		{}
+
+		/** @return B */
+		function annotationClassType()
+		{}
+
+		/** @return B|string */
+		function annotationUnionType()
+		{}
+
+		/** @return String */
+		function annotationNativeType()
+		{}
+
+		/** @return self */
+		function annotationSelfType()
+		{}
+	}
+
+	/** @return B */
+	function annotationClassType()
+	{}
+}
+
+
+namespace
+{
+	use Nette\DI\PhpReflection;
+	use Tester\Assert;
+
+	require __DIR__ . '/../bootstrap.php';
+
+
+	Assert::null(PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'noType')));
+
+	Assert::same('Test\B', PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'classType')));
+
+	Assert::same('string', PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'nativeType')));
+
+	Assert::same('NS\A', PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'selfType')));
+
+	Assert::same('Test\B', PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'nullableClassType')));
+
+	Assert::same('string', PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'nullableNativeType')));
+
+	Assert::same('NS\A', PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'nullableSelfType')));
+
+	Assert::same('Test\B', PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'annotationClassType')));
+
+	Assert::same('Test\B', PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'annotationUnionType')));
+
+	Assert::same('string', PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'annotationNativeType')));
+
+	Assert::same('NS\A', PhpReflection::getReturnType(new \ReflectionMethod(NS\A::class, 'annotationSelfType')));
+
+	// class name expanding is NOT supported for global functions
+	Assert::same('B', PhpReflection::getReturnType(new \ReflectionFunction('NS\annotationClassType')));
+}