From 92e6fd4b258eae760dfae5ae76b9b51027a8f419 Mon Sep 17 00:00:00 2001
From: Ashfahan Khan <me@ashfahan.com>
Date: Tue, 11 Jun 2019 10:05:36 +0500
Subject: [PATCH] Add Error checking to prevent invalid breakpoint

Error checking to prevent invalid breakpoint name
---
 scss/mixins/_breakpoints.scss | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/scss/mixins/_breakpoints.scss b/scss/mixins/_breakpoints.scss
index 23a5de96be..f55ef78777 100644
--- a/scss/mixins/_breakpoints.scss
+++ b/scss/mixins/_breakpoints.scss
@@ -16,7 +16,10 @@
 //    md
 @function breakpoint-next($name, $breakpoints: $grid-breakpoints, $breakpoint-names: map-keys($breakpoints)) {
   $n: index($breakpoint-names, $name);
-  @return if($n != null and $n < length($breakpoint-names), nth($breakpoint-names, $n + 1), null);
+  @if $n == null {
+    @error "breakpoint `#{$name}` not found in `#{$breakpoints}`";
+  }
+  @return if($n < length($breakpoint-names), nth($breakpoint-names, $n + 1), null);
 }
 
 // Minimum breakpoint width. Null for the smallest (first) breakpoint.