From fc942969263514071eea8235aec1d0fc0c77622f Mon Sep 17 00:00:00 2001
From: yaquawa <yaquawa@gmail.com>
Date: Wed, 22 Jul 2020 20:41:01 +0900
Subject: [PATCH] Added `@returnifempty`

---
 README.md          | 10 ++++++++++
 src/directives.php | 10 ++++++++++
 2 files changed, 20 insertions(+)

diff --git a/README.md b/README.md
index 56afacc..91001c6 100644
--- a/README.md
+++ b/README.md
@@ -227,6 +227,16 @@ Quickly output for classical  ```$errors->has('input_name')``` to determine if a
 @endhaserror
 ```
 
+### @returnifempty
+
+`return` if the given variable is empty. Useful when you want to return 'nothing' if the required parameter of a view component not provided.
+
+```blade
+@returnifempty($var)
+
+{{-- The following codes won't get executed if $var is empty --}}
+```
+
 ## Testing
 
 ```bash
diff --git a/src/directives.php b/src/directives.php
index 8396f83..bc25a8e 100644
--- a/src/directives.php
+++ b/src/directives.php
@@ -399,4 +399,14 @@
         return '<?php endif; ?>';
     },
 
+    /*
+    |---------------------------------------------------------------------
+    | @returnifempty
+    |---------------------------------------------------------------------
+    */
+
+    'returnifempty' => function ($expression) {
+        return "<?php if (empty($expression) || ($expression && !count($expression))) { return; } ?>";
+    },
+
 ];