From 379daa6dd8018befca15e4a4afb584bd6bbed4b2 Mon Sep 17 00:00:00 2001
From: Oli Sturm <oliver+commitsigning@oliversturm.com>
Date: Fri, 24 Nov 2023 15:52:28 +0000
Subject: [PATCH] feat: add label sample

---
 samples/CS9/Program.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/samples/CS9/Program.cs b/samples/CS9/Program.cs
index 3eb02e1..c715fce 100644
--- a/samples/CS9/Program.cs
+++ b/samples/CS9/Program.cs
@@ -35,7 +35,9 @@ namespace CS9 {
     //   the element lists must be "complete"!
     static OrderValue OrderValueCategory(Order o) =>
       o switch {
-        (< 0, _) => throw new ArgumentException("Positive itemCounts please!"),
+        // Labels are optional here but can be useful
+        // for readability
+        (itemCount: < 0, itemPrice: _) => throw new ArgumentException("Positive itemCounts please!"),
         (_, < 0) => throw new ArgumentException("Positive itemPrices please!"),
         (>= 100, _) => OrderValue.ValuableDueToHighCount,
         (_, >= 1000) => OrderValue.ValuableDueToHighItemPrice,