From 8b3696b4a14e84420fc56f5b560cf855a012b8de Mon Sep 17 00:00:00 2001
From: Andreas Gullberg Larsen <andreas.larsen84@gmail.com>
Date: Sat, 28 Dec 2024 00:15:30 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=92=A5Change=20UnitParser=20ctor=20to=20r?=
 =?UTF-8?q?equire=20unit=20abbreviations=20cache=20(#1477)?=
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Ref #1200

- Throw if `null` is given
- Remove fallback to default unit abbreviations
---
 UnitsNet/CustomCode/UnitParser.cs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/UnitsNet/CustomCode/UnitParser.cs b/UnitsNet/CustomCode/UnitParser.cs
index aecc6d526d..d3dab403cc 100644
--- a/UnitsNet/CustomCode/UnitParser.cs
+++ b/UnitsNet/CustomCode/UnitParser.cs
@@ -23,11 +23,11 @@ public sealed class UnitParser
         /// <summary>
         ///     Create a parser using the given unit abbreviations cache.
         /// </summary>
-        /// <param name="unitAbbreviationsCache"></param>
-        // TODO Change this to not fallback to built-in units abbreviations when given null, in v6: https://github.com/angularsen/UnitsNet/issues/1200
-        public UnitParser(UnitAbbreviationsCache? unitAbbreviationsCache)
+        /// <param name="unitAbbreviationsCache">The unit abbreviations to parse with.</param>
+        /// <exception cref="ArgumentNullException">No unit abbreviations cache was given.</exception>
+        public UnitParser(UnitAbbreviationsCache unitAbbreviationsCache)
         {
-            _unitAbbreviationsCache = unitAbbreviationsCache ?? UnitsNetSetup.Default.UnitAbbreviations;
+            _unitAbbreviationsCache = unitAbbreviationsCache ?? throw new ArgumentNullException(nameof(unitAbbreviationsCache));
         }
 
         /// <summary>