fixup! Add slope_it_is_breadcrumb_empty Twig function (#13)

Author: asprega

README.md

@@ -140,6 +140,12 @@ Home > Value of entity property > Cool stuff
 
 In which the first two items are anchors and the last one is text only.
 
+Furthermore, in case you need to know whether the breadcrumb has items or not, you can use:
+
+```
+{{ slope_it_is_breadcrumb_empty() }}
+```
+
 ### How the breadcrumb is generated
 
 Under the hood, this is the business logic involved, for each item, in the breadcrumb generation:

src/Twig/BreadcrumbExtension.php

@@ -41,7 +41,7 @@ public function getFunctions(): array
         return [
             new TwigFunction(
                 'slope_it_breadcrumb',
-                [ $this, 'renderBreadcrumb' ],
+                [$this, 'renderBreadcrumb'],
                 [
                     'is_safe' => [ 'html' ],
                     'needs_environment' => true,
@@ -50,7 +50,7 @@ public function getFunctions(): array
             ),
             new TwigFunction(
                 'slope_it_is_breadcrumb_empty',
-                [ $this, 'isBreadcrumbEmpty' ]
+                [$this, 'isBreadcrumbEmpty']
             )
         ];
     }
@@ -60,6 +60,11 @@ public function getName(): string
         return 'slope_it_breadcrumb';
     }
 
+    public function isBreadcrumbEmpty(): bool
+    {
+        return \count($this->builder->getItems()) === 0;
+    }
+
     public function renderBreadcrumb(Environment $twig, array $context): string
     {
         $breadcrumb = [];
@@ -69,9 +74,4 @@ public function renderBreadcrumb(Environment $twig, array $context): string
 
         return $twig->render($this->template, [ 'items' => $breadcrumb ]);
     }
-
-    public function isBreadcrumbEmpty(): bool
-    {
-        return 0 === \count($this->builder->getItems());
-    }
 }