added PhpReflection::getClassTree()

Author: dg

src/DI/PhpReflection.php

@@ -101,6 +101,27 @@ public static function isBuiltinType($type)
 	}
 
 
+	/**
+	 * Returns class and all its descendants.
+	 * @return string[]
+	 */
+	public static function getClassTree(\ReflectionClass $class)
+	{
+		$getTraits = function ($type) use (& $getTraits) {
+			return array_reduce(class_uses($type) + class_parents($type), function ($carry, $type) use (& $getTraits) {
+				return array_merge($carry, $getTraits($type), trait_exists($type) ? [$type] : []);
+			}, []);
+		};
+		$class = $class->getName();
+		return array_merge(
+			[$class],
+			array_values(class_parents($class)),
+			array_values(class_implements($class)),
+			$getTraits($class)
+		);
+	}
+
+
 	/**
 	 * Expands class name into full name.
 	 * @param  string

tests/DI/PhpReflection.getClassTree.phpt

@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * Test: Nette\DI\PhpReflection::getClassTree
+ */
+
+use Nette\DI\PhpReflection;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+trait T1 {
+}
+
+trait T2 {
+	use T1;
+}
+
+interface I1 {
+}
+
+interface I2 extends I1 {
+}
+
+class C1 implements I2
+{
+	use T2;
+}
+
+class C2 extends C1
+{
+}
+
+Assert::same(['I1'], PhpReflection::getClassTree(new ReflectionClass('I1')));
+Assert::same(['I2', 'I1'], PhpReflection::getClassTree(new ReflectionClass('I2')));
+Assert::same(['T1'], PhpReflection::getClassTree(new ReflectionClass('T1')));
+Assert::same(['T2', 'T1'], PhpReflection::getClassTree(new ReflectionClass('T2')));
+Assert::same(['C1', 'I2', 'I1', 'T1', 'T2'], PhpReflection::getClassTree(new ReflectionClass('C1')));
+Assert::same(['C2', 'C1', 'I1', 'I2', 'T1', 'T2'], PhpReflection::getClassTree(new ReflectionClass('C2')));