make myclabs/php-enum compatible

Author: lihsai0

composer.json

@@ -19,7 +19,7 @@
     ],
     "require": {
         "php": ">=5.3.3",
-        "myclabs/php-enum": "1.6.6"
+        "myclabs/php-enum": "~1.6.6 || ~1.7.7 || ~1.8.4"
     },
     "require-dev": {
         "paragonie/random_compat": ">=2",

src/Qiniu/Enum/QiniuEnum.php

@@ -1,41 +1,49 @@
 <?php
+// phpcs:disable
+// PSR1.Classes.ClassDeclaration.MultipleClasses
 
 namespace Qiniu\Enum;
 
 use MyCLabs\Enum\Enum;
 
-/**
- * 扩展 MyCLabs\Enum\Enum 以使用其新版本的 from 方法
- *
- * @link https://github.com/myclabs/php-enum
- */
-abstract class QiniuEnum extends Enum
-{
-    /**
-     * @param mixed $value
-     * @return static
-     */
-    public static function from($value)
+if (method_exists("MyCLabs\\Enum\\Enum", "from")) {
+    abstract class QiniuEnum extends Enum
     {
-        $key = self::assertValidValueReturningKey($value);
-
-        return self::__callStatic($key, array());
     }
-
+} else {
     /**
-     * Asserts valid enum value
+     * poly fill MyCLabs\Enum\Enum::from in low version
      *
-     * @psalm-pure
-     * @psalm-assert T $value
-     * @param mixed $value
-     * @return string
+     * @link https://github.com/myclabs/php-enum
      */
-    private static function assertValidValueReturningKey($value)
+    abstract class QiniuEnum extends Enum
     {
-        if (false === ($key = self::search($value))) {
-            throw new \UnexpectedValueException("Value '$value' is not part of the enum " . __CLASS__);
+        /**
+         * @param mixed $value
+         * @return static
+         */
+        public static function from($value)
+        {
+            $key = self::assertValidValueReturningKey($value);
+
+            return self::__callStatic($key, array());
         }
 
-        return $key;
+        /**
+         * Asserts valid enum value
+         *
+         * @psalm-pure
+         * @psalm-assert T $value
+         * @param mixed $value
+         * @return string
+         */
+        private static function assertValidValueReturningKey($value)
+        {
+            if (false === ($key = self::search($value))) {
+                throw new \UnexpectedValueException("Value '$value' is not part of the enum " . __CLASS__);
+            }
+
+            return $key;
+        }
     }
 }