add more proxy methods to deferred value

Author: taylorotwell

src/Illuminate/View/Component.php

@@ -2,10 +2,13 @@
 
 namespace Illuminate\View;
 
+use ArrayIterator;
 use Closure;
 use Illuminate\Container\Container;
 use Illuminate\Contracts\Support\DeferringDisplayableValue;
+use Illuminate\Support\Enumerable;
 use Illuminate\Support\Str;
+use IteratorAggregate;
 use ReflectionClass;
 use ReflectionMethod;
 use ReflectionProperty;
@@ -197,7 +200,7 @@ protected function createInvokableVariable(string $method)
     {
         return new class(function () use ($method) {
             return $this->{$method}();
-        }) implements DeferringDisplayableValue {
+        }) implements DeferringDisplayableValue, IteratorAggregate {
             protected $callable;
 
             public function __construct(Closure $callable)
@@ -210,6 +213,23 @@ public function resolveDisplayableValue()
                 return $this->__invoke();
             }
 
+            public function getIterator()
+            {
+                $result = $this->__invoke();
+
+                return new ArrayIterator($result instanceof Enumerable ? $result->all() : $result);
+            }
+
+            public function __get($key)
+            {
+                return $this->__invoke()->{$key};
+            }
+
+            public function __call($method, $parameters)
+            {
+                return $this->__invoke()->{$method}(...$parameters);
+            }
+
             public function __invoke()
             {
                 return call_user_func($this->callable);
@@ -219,7 +239,6 @@ public function __toString()
             {
                 return (string) $this->__invoke();
             }
-
         };
     }