Adds support for macros (#500)

* Adds support for macros

* Fixes formatting

src/Alias.php

@@ -312,6 +312,24 @@ class Alias
                     }
                 }
             }
+
+            // Check if the class is macroable
+            $traits = collect($reflection->getTraitNames());
+            if ($traits->contains('Illuminate\Support\Traits\Macroable')) {
+                $properties = $reflection->getStaticProperties();
+                $macros = isset($properties['macros']) ? $properties['macros'] : [];
+                foreach ($macros as $macro_name => $macro_func) {
+                    $function = new \ReflectionFunction($macro_func);
+                    // Add macros
+                    $this->methods[] = new Macro(
+                        $function,
+                        $this->alias,
+                        $reflection,
+                        $macro_name,
+                        $this->interfaces
+                    );
+                }
+            }
         }
     }