From ca3ff6dc29df09bb77321eacfb072be8c48c0c54 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=ABl=20Poupard?= <ffoodd@users.noreply.github.com>
Date: Tue, 25 May 2021 07:23:41 +0200
Subject: [PATCH] Handle complex expressions in add() & subtract() (#34047)

---
 scss/_functions.scss | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/scss/_functions.scss b/scss/_functions.scss
index 9c06603150..8abc31164e 100644
--- a/scss/_functions.scss
+++ b/scss/_functions.scss
@@ -120,6 +120,14 @@
     @return $value1 + $value2;
   }
 
+  @if type-of($value1) != number {
+    $value1: unquote("(") + $value1 + unquote(")");
+  }
+
+  @if type-of($value2) != number {
+    $value2: unquote("(") + $value2 + unquote(")");
+  }
+
   @return if($return-calc == true, calc(#{$value1} + #{$value2}), $value1 + unquote(" + ") + $value2);
 }
 
@@ -140,5 +148,13 @@
     @return $value1 - $value2;
   }
 
+  @if type-of($value1) != number {
+    $value1: unquote("(") + $value1 + unquote(")");
+  }
+
+  @if type-of($value2) != number {
+    $value2: unquote("(") + $value2 + unquote(")");
+  }
+
   @return if($return-calc == true, calc(#{$value1} - #{$value2}), $value1 + unquote(" - ") + $value2);
 }