From 853613be156c36618c4fe626f61ef30eff4609dc Mon Sep 17 00:00:00 2001
From: XiangMin Liu <635750556@qq.com>
Date: Sat, 5 Dec 2020 01:29:37 +0800
Subject: [PATCH] fix(kernel): Fix IdeHelper error

---
 src/Leevel/Kernel/Utils/IdeHelper.php | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/src/Leevel/Kernel/Utils/IdeHelper.php b/src/Leevel/Kernel/Utils/IdeHelper.php
index 6932ce57b..f1c4a5dea 100644
--- a/src/Leevel/Kernel/Utils/IdeHelper.php
+++ b/src/Leevel/Kernel/Utils/IdeHelper.php
@@ -26,9 +26,8 @@
 use ReflectionFunction;
 use ReflectionFunctionAbstract;
 use ReflectionMethod;
-use ReflectionNamedType;
 use ReflectionParameter;
-use ReflectionType;
+use ReflectionUnionType;
 
 /**
  * IDE 生成.
@@ -159,21 +158,15 @@ protected function getReflectorReturnType(ReflectionFunctionAbstract $reflector)
             return '';
         }
 
-        $returnType = $this->convertReflectionNamedType($returnType);
+        if ($returnType instanceof ReflectionUnionType) {
+            return (string) $returnType;
+        }
 
-        return ($returnType->allowsNull() ? '?' : '').
+        return ($returnType->allowsNull() && 'mixed' !== $returnType->getName() ? '?' : '').
             (!$returnType->isBuiltin() ? '\\' : '').
             $returnType->getName();
     }
 
-    /**
-     * 转换为 \ReflectionNamedType.
-     */
-    protected function convertReflectionNamedType(ReflectionType $reflectionType): ReflectionNamedType
-    {
-        return $reflectionType;
-    }
-
     /**
      * 整理方法参数.
      */
@@ -184,7 +177,9 @@ protected function normalizeParam(ReflectionParameter $param, bool $onlyReturnNa
         }
 
         $paramClassName = null;
-        if (($reflectionType = $param->getType()) && false === $reflectionType->isBuiltin()) {
+        if (($reflectionType = $param->getType()) && 
+            !($reflectionType instanceof ReflectionUnionType) &&
+            false === $reflectionType->isBuiltin()) {
             $paramClassName = $reflectionType->getName();
         }