Fix generate error when macroable class has a "fake" method (#1066)

Author: domkrm

CHANGELOG.md

@@ -16,6 +16,7 @@ All notable changes to this project will be documented in this file.
 ### Fixed
 - Compatibility with Lumen [\#1043 / mfn](https://github.com/barryvdh/laravel-ide-helper/pull/1043)
 - Allow model_locations to have glob patterns [\#1059 / saackearl](https://github.com/barryvdh/laravel-ide-helper/pull/1059)
+- Error when generating helper for macroable classes which are not facades and contain a "fake" method [\#1066 / domkrm] (https://github.com/barryvdh/laravel-ide-helper/pull/1066)
 
 2020-09-07, 2.8.1
 -----------------

src/Alias.php

@@ -17,6 +17,7 @@
 use Barryvdh\Reflection\DocBlock\Tag\MethodTag;
 use Closure;
 use Illuminate\Config\Repository as ConfigRepository;
+use Illuminate\Support\Facades\Facade;
 use ReflectionClass;
 
 class Alias
@@ -202,6 +203,10 @@ protected function detectFake()
     {
         $facade = $this->facade;
 
+        if (!is_subclass_of($facade, Facade::class)) {
+            return;
+        }
+
         if (!method_exists($facade, 'fake')) {
             return;
         }