1 files changed, 13 insertions, 0 deletions
diff --git a/lib/gitlab/relative_positioning/closed_range.rb b/lib/gitlab/relative_positioning/closed_range.rb
new file mode 100644
index 00000000000..8916d1face5
--- /dev/null
+++ b/lib/gitlab/relative_positioning/closed_range.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module RelativePositioning
+    class ClosedRange < RelativePositioning::Range
+      def initialize(lhs, rhs)
+        @lhs, @rhs = lhs, rhs
+        raise IllegalRange, 'Either lhs or rhs is missing' unless lhs && rhs
+        raise IllegalRange, 'lhs and rhs cannot be the same object' if lhs == rhs
+      end
+    end
+  end
+end