From 078866987b3a0abe7a12b8d1950c4296ef61990d Mon Sep 17 00:00:00 2001
From: CarloToso <105941898+CarloToso@users.noreply.github.com>
Date: Sat, 7 Jan 2023 16:11:01 +0100
Subject: [PATCH]  Requires.NotNull-->ArgumentNullException.ThrowIfNull
 (#18820)

---
 .../Subsystem/PredictionSubsystem/CommandPrediction.cs      | 2 +-
 .../Subsystem/PredictionSubsystem/ICommandPredictor.cs      | 4 ++--
 .../engine/Subsystem/SubsystemManager.cs                    | 6 +++---
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/System.Management.Automation/engine/Subsystem/PredictionSubsystem/CommandPrediction.cs b/src/System.Management.Automation/engine/Subsystem/PredictionSubsystem/CommandPrediction.cs
index 7a87b25931..7ed70e247a 100644
--- a/src/System.Management.Automation/engine/Subsystem/PredictionSubsystem/CommandPrediction.cs
+++ b/src/System.Management.Automation/engine/Subsystem/PredictionSubsystem/CommandPrediction.cs
@@ -142,7 +142,7 @@ namespace System.Management.Automation.Subsystem.Prediction
         /// <param name="history">History command lines provided as references for prediction.</param>
         public static void OnCommandLineAccepted(PredictionClient client, IReadOnlyList<string> history)
         {
-            Requires.NotNull(history, nameof(history));
+            ArgumentNullException.ThrowIfNull(history);
 
             var predictors = SubsystemManager.GetSubsystems<ICommandPredictor>();
             if (predictors.Count == 0)
diff --git a/src/System.Management.Automation/engine/Subsystem/PredictionSubsystem/ICommandPredictor.cs b/src/System.Management.Automation/engine/Subsystem/PredictionSubsystem/ICommandPredictor.cs
index d528067452..95e8487bba 100644
--- a/src/System.Management.Automation/engine/Subsystem/PredictionSubsystem/ICommandPredictor.cs
+++ b/src/System.Management.Automation/engine/Subsystem/PredictionSubsystem/ICommandPredictor.cs
@@ -181,8 +181,8 @@ namespace System.Management.Automation.Subsystem.Prediction
         /// <param name="inputTokens">The <see cref="Token"/> objects from parsing the current command line input.</param>
         public PredictionContext(Ast inputAst, Token[] inputTokens)
         {
-            Requires.NotNull(inputAst, nameof(inputAst));
-            Requires.NotNull(inputTokens, nameof(inputTokens));
+            ArgumentNullException.ThrowIfNull(inputAst);
+            ArgumentNullException.ThrowIfNull(inputTokens);
 
             var cursor = inputAst.Extent.EndScriptPosition;
             var astContext = CompletionAnalysis.ExtractAstContext(inputAst, inputTokens, cursor);
diff --git a/src/System.Management.Automation/engine/Subsystem/SubsystemManager.cs b/src/System.Management.Automation/engine/Subsystem/SubsystemManager.cs
index 1af41a6745..022c163a16 100644
--- a/src/System.Management.Automation/engine/Subsystem/SubsystemManager.cs
+++ b/src/System.Management.Automation/engine/Subsystem/SubsystemManager.cs
@@ -131,7 +131,7 @@ namespace System.Management.Automation.Subsystem
         /// <returns>The <see cref="SubsystemInfo"/> object that represents the concrete subsystem.</returns>
         public static SubsystemInfo GetSubsystemInfo(Type subsystemType)
         {
-            Requires.NotNull(subsystemType, nameof(subsystemType));
+            ArgumentNullException.ThrowIfNull(subsystemType);
 
             if (s_subSystemTypeMap.TryGetValue(subsystemType, out SubsystemInfo? subsystemInfo))
             {
@@ -180,7 +180,7 @@ namespace System.Management.Automation.Subsystem
             where TConcreteSubsystem : class, ISubsystem
             where TImplementation : class, TConcreteSubsystem
         {
-            Requires.NotNull(proxy, nameof(proxy));
+            ArgumentNullException.ThrowIfNull(proxy);
 
             RegisterSubsystem(GetSubsystemInfo(typeof(TConcreteSubsystem)), proxy);
         }
@@ -192,7 +192,7 @@ namespace System.Management.Automation.Subsystem
         /// <param name="proxy">An instance of the implementation.</param>
         public static void RegisterSubsystem(SubsystemKind kind, ISubsystem proxy)
         {
-            Requires.NotNull(proxy, nameof(proxy));
+            ArgumentNullException.ThrowIfNull(proxy);
 
             SubsystemInfo info = GetSubsystemInfo(kind);
             if (!info.SubsystemType.IsAssignableFrom(proxy.GetType()))