Switch .NET 5 target to .NET 6

CommunityToolkit.Common/CommunityToolkit.Common.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard2.1;net5.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netstandard2.1;net6.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -14,8 +14,8 @@
     <PackageTags>Incremental;Loading;Collection;IncrementalLoadingCollection;String;Array;Extensions;Helpers</PackageTags>
   </PropertyGroup>
 
-  <!-- .NET Standard 2.1 and .NET 5 already have [NotNullIfNotNull] and [NotNullWhen] -->
-  <PropertyGroup Condition="'$(TargetFramework)' == 'net5.0'">
+  <!-- .NET Standard 2.1 and .NET 6 already have [NotNullIfNotNull] and [NotNullWhen] -->
+  <PropertyGroup Condition="'$(TargetFramework)' == 'net6.0'">
     <DefineConstants>NETSTANDARD2_1_OR_GREATER</DefineConstants>
   </PropertyGroup>
 

CommunityToolkit.Common/Deferred/EventDeferral.cs

@@ -16,7 +16,7 @@ namespace CommunityToolkit.Common.Deferred;
 /// </summary>
 public class EventDeferral : IDisposable
 {
-    //// TODO: If/when .NET 5 is base, we can upgrade to non-generic version
+    //// TODO: If/when .NET 6 is base, we can upgrade to non-generic version
     private readonly TaskCompletionSource<object?> _taskCompletionSource = new();
 
     internal EventDeferral()

CommunityToolkit.Common/Extensions/TaskExtensions.cs

@@ -39,7 +39,7 @@ public static class TaskExtensions
         {
             // We need an explicit check to ensure the input task is not the cached
             // Task.CompletedTask instance, because that can internally be stored as
-            // a Task<T> for some given T (eg. on .NET 5 it's VoidTaskResult), which
+            // a Task<T> for some given T (eg. on .NET 6 it's VoidTaskResult), which
             // would cause the following code to return that result instead of null.
             if (task != Task.CompletedTask)
             {

CommunityToolkit.Diagnostics/Attributes/SkipLocalsInitAttribute.cs

@@ -2,7 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-#if !NET5_0
+#if !NET6_0_OR_GREATER
 
 namespace System.Runtime.CompilerServices;
 

CommunityToolkit.Diagnostics/CommunityToolkit.Diagnostics.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard2.1;net5.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netstandard2.1;net6.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -34,7 +34,7 @@
       </ItemGroup>
     </When>
 
-    <When Condition="'$(TargetFramework)' == 'net5.0'">
+    <When Condition="'$(TargetFramework)' == 'net6.0'">
       <PropertyGroup>
         <DefineConstants>NETSTANDARD2_1_OR_GREATER</DefineConstants>
       </PropertyGroup>

CommunityToolkit.HighPerformance/Attributes/SkipLocalsInitAttribute.cs

@@ -2,7 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-#if !NET5_0
+#if !NET6_0_OR_GREATER
 
 namespace System.Runtime.CompilerServices;
 

CommunityToolkit.HighPerformance/Buffers/ArrayPoolBufferWriter{T}.cs

@@ -9,7 +9,11 @@
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using CommunityToolkit.HighPerformance.Buffers.Views;
-using CommunityToolkit.HighPerformance.Helpers.Internals;
+#if NET6_0_OR_GREATER
+using BitOperations = System.Numerics.BitOperations;
+#else
+using BitOperations = CommunityToolkit.HighPerformance.Helpers.Internals.BitOperations;
+#endif
 
 namespace CommunityToolkit.HighPerformance.Buffers;
 
@@ -283,7 +287,7 @@ private void CheckBufferAndEnsureCapacity(int sizeHint)
     [MethodImpl(MethodImplOptions.NoInlining)]
     private void ResizeBuffer(int sizeHint)
     {
-        int minimumSize = this.index + sizeHint;
+        uint minimumSize = (uint)this.index + (uint)sizeHint;
 
         // The ArrayPool<T> class has a maximum threshold of 1024 * 1024 for the maximum length of
         // pooled arrays, and once this is exceeded it will just allocate a new array every time
@@ -292,10 +296,10 @@ private void ResizeBuffer(int sizeHint)
         // use is bigger than that threshold don't end up causing a resize every single time.
         if (minimumSize > 1024 * 1024)
         {
-            minimumSize = BitOperations.RoundUpPowerOfTwo(minimumSize);
+            minimumSize = BitOperations.RoundUpToPowerOf2(minimumSize);
         }
 
-        this.pool.Resize(ref this.array, minimumSize);
+        this.pool.Resize(ref this.array, (int)minimumSize);
     }
 
     /// <inheritdoc/>

CommunityToolkit.HighPerformance/Buffers/StringPool.cs

@@ -8,7 +8,11 @@
 using System.Runtime.CompilerServices;
 using System.Text;
 using CommunityToolkit.HighPerformance.Helpers;
+#if NET6_0_OR_GREATER
+using BitOperations = System.Numerics.BitOperations;
+#else
 using BitOperations = CommunityToolkit.HighPerformance.Helpers.Internals.BitOperations;
+#endif
 
 namespace CommunityToolkit.HighPerformance.Buffers;
 
@@ -66,13 +70,13 @@ public StringPool(int minimumSize)
         minimumSize = Math.Max(minimumSize, MinimumSize);
 
         // Calculates the rounded up factors for a specific size/factor pair
-        static void FindFactors(int size, int factor, out int x, out int y)
+        static void FindFactors(int size, int factor, out uint x, out uint y)
         {
             double a = Math.Sqrt((double)size / factor);
             double b = factor * a;
 
-            x = BitOperations.RoundUpPowerOfTwo((int)a);
-            y = BitOperations.RoundUpPowerOfTwo((int)b);
+            x = BitOperations.RoundUpToPowerOf2((uint)a);
+            y = BitOperations.RoundUpToPowerOf2((uint)b);
         }
 
         // We want to find two powers of 2 factors that produce a number
@@ -84,13 +88,13 @@ static void FindFactors(int size, int factor, out int x, out int y)
         // as well as the multithreading performance when locking on maps.
         // We still want to contraint this number to avoid situations where we
         // have a way too high number of maps compared to total size.
-        FindFactors(minimumSize, 2, out int x2, out int y2);
-        FindFactors(minimumSize, 3, out int x3, out int y3);
-        FindFactors(minimumSize, 4, out int x4, out int y4);
+        FindFactors(minimumSize, 2, out uint x2, out uint y2);
+        FindFactors(minimumSize, 3, out uint x3, out uint y3);
+        FindFactors(minimumSize, 4, out uint x4, out uint y4);
 
-        int p2 = x2 * y2;
-        int p3 = x3 * y3;
-        int p4 = x4 * y4;
+        uint p2 = x2 * y2;
+        uint p3 = x3 * y3;
+        uint p4 = x4 * y4;
 
         if (p3 < p2)
         {
@@ -113,12 +117,12 @@ static void FindFactors(int size, int factor, out int x, out int y)
         // This lets us lock on each individual maps when retrieving a string instance.
         foreach (ref FixedSizePriorityMap map in span)
         {
-            map = new FixedSizePriorityMap(y2);
+            map = new FixedSizePriorityMap((int)y2);
         }
 
-        this.numberOfMaps = x2;
+        this.numberOfMaps = (int)x2;
 
-        Size = p2;
+        Size = (int)p2;
     }
 
     /// <summary>

CommunityToolkit.HighPerformance/CommunityToolkit.HighPerformance.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard2.1;netcoreapp3.1;net5.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netstandard2.1;netcoreapp3.1;net6.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -45,9 +45,9 @@
       </ItemGroup>
     </When>
 
-    <When Condition="'$(TargetFramework)' == 'net5.0'">
+    <When Condition="'$(TargetFramework)' == 'net6.0'">
 
-      <!-- NETSTANDARD2_1_OR_GREATER: includes both .NET Standard 2.1, .NET Core 3.1 and .NET 5 -->
+      <!-- NETSTANDARD2_1_OR_GREATER: includes both .NET Standard 2.1, .NET Core 3.1 and .NET 6 -->
       <PropertyGroup>
         <DefineConstants>NETSTANDARD2_1_OR_GREATER</DefineConstants>
       </PropertyGroup>

CommunityToolkit.HighPerformance/Extensions/ArrayExtensions.1D.cs

@@ -33,7 +33,7 @@ public static partial class ArrayExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static ref T DangerousGetReference<T>(this T[] array)
     {
-#if NET5_0
+#if NET6_0_OR_GREATER
         return ref MemoryMarshal.GetArrayDataReference(array);
 #elif NETCOREAPP3_1
         RawArrayData? arrayData = Unsafe.As<RawArrayData>(array)!;
@@ -59,7 +59,7 @@ public static ref T DangerousGetReference<T>(this T[] array)
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static ref T DangerousGetReferenceAt<T>(this T[] array, int i)
     {
-#if NET5_0
+#if NET6_0_OR_GREATER
         ref T r0 = ref MemoryMarshal.GetArrayDataReference(array);
         ref T ri = ref Unsafe.Add(ref r0, (nint)(uint)i);
 

CommunityToolkit.HighPerformance/Extensions/ArrayExtensions.2D.cs

@@ -32,7 +32,9 @@ public static partial class ArrayExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static ref T DangerousGetReference<T>(this T[,] array)
     {
-#if NETCOREAPP3_1
+#if NET6_0_OR_GREATER
+        return ref Unsafe.As<byte, T>(ref MemoryMarshal.GetArrayDataReference(array));
+#elif NETCOREAPP3_1
         RawArray2DData? arrayData = Unsafe.As<RawArray2DData>(array)!;
         ref T r0 = ref Unsafe.As<byte, T>(ref arrayData.Data);
 
@@ -62,7 +64,14 @@ public static ref T DangerousGetReference<T>(this T[,] array)
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static ref T DangerousGetReferenceAt<T>(this T[,] array, int i, int j)
     {
-#if NETCOREAPP3_1
+#if NET6_0_OR_GREATER
+        int width = array.GetLength(1);
+        nint index = ((nint)(uint)i * (nint)(uint)width) + (nint)(uint)j;
+        ref T r0 = ref Unsafe.As<byte, T>(ref MemoryMarshal.GetArrayDataReference(array));
+        ref T ri = ref Unsafe.Add(ref r0, index);
+
+        return ref ri;
+#elif NETCOREAPP3_1
         RawArray2DData? arrayData = Unsafe.As<RawArray2DData>(array)!;
         nint offset = ((nint)(uint)i * (nint)(uint)arrayData.Width) + (nint)(uint)j;
         ref T r0 = ref Unsafe.As<byte, T>(ref arrayData.Data);

CommunityToolkit.HighPerformance/Extensions/ArrayExtensions.3D.cs

@@ -31,7 +31,9 @@ public static partial class ArrayExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static ref T DangerousGetReference<T>(this T[,,] array)
     {
-#if NETCOREAPP3_1
+#if NET6_0_OR_GREATER
+        return ref Unsafe.As<byte, T>(ref MemoryMarshal.GetArrayDataReference(array));
+#elif NETCOREAPP3_1
         RawArray3DData? arrayData = Unsafe.As<RawArray3DData>(array)!;
         ref T r0 = ref Unsafe.As<byte, T>(ref arrayData.Data);
 
@@ -62,7 +64,17 @@ public static ref T DangerousGetReference<T>(this T[,,] array)
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static ref T DangerousGetReferenceAt<T>(this T[,,] array, int i, int j, int k)
     {
-#if NETCOREAPP3_1
+#if NET6_0_OR_GREATER
+        int height = array.GetLength(1);
+        int width = array.GetLength(2);
+        nint index =
+            ((nint)(uint)i * (nint)(uint)height * (nint)(uint)width) +
+            ((nint)(uint)j * (nint)(uint)width) + (nint)(uint)k;
+        ref T r0 = ref Unsafe.As<byte, T>(ref MemoryMarshal.GetArrayDataReference(array));
+        ref T ri = ref Unsafe.Add(ref r0, index);
+
+        return ref ri;
+#elif NETCOREAPP3_1
         RawArray3DData? arrayData = Unsafe.As<RawArray3DData>(array)!;
         nint offset =
             ((nint)(uint)i * (nint)(uint)arrayData.Height * (nint)(uint)arrayData.Width) +

CommunityToolkit.HighPerformance/Extensions/ListExtensions.cs

@@ -2,7 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-#if NET5_0
+#if NET6_0_OR_GREATER
 
 using System;
 using System.Collections.Generic;

CommunityToolkit.HighPerformance/Extensions/NullableExtensions.cs

@@ -2,11 +2,12 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-// This extension is restricted to the .NET 5 because it shares the same BCL
+// This extension is restricted to the .NET 6 because it shares the same BCL
 // across all targets, ensuring that the layout of our Nullable<T> mapping type
 // will be correct. Exposing this API on older targets (especially .NET Standard)
 // is not guaranteed to be correct and could result in invalid memory accesses.
-#if NET5_0
+
+#if NET6_0_OR_GREATER
 
 using System;
 using System.Runtime.CompilerServices;

CommunityToolkit.HighPerformance/Extensions/StringExtensions.cs

@@ -28,7 +28,7 @@ public static class StringExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static ref char DangerousGetReference(this string text)
     {
-#if NETCOREAPP3_1 || NET5_0
+#if NETCOREAPP3_1_OR_GREATER
         return ref Unsafe.AsRef(text.GetPinnableReference());
 #else
         return ref MemoryMarshal.GetReference(text.AsSpan());
@@ -46,7 +46,7 @@ public static ref char DangerousGetReference(this string text)
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static ref char DangerousGetReferenceAt(this string text, int i)
     {
-#if NETCOREAPP3_1 || NET5_0
+#if NETCOREAPP3_1_OR_GREATER
         ref char r0 = ref Unsafe.AsRef(text.GetPinnableReference());
 #else
         ref char r0 = ref MemoryMarshal.GetReference(text.AsSpan());

CommunityToolkit.HighPerformance/Helpers/BitHelper.cs

@@ -4,7 +4,7 @@
 
 using System.Diagnostics.Contracts;
 using System.Runtime.CompilerServices;
-#if NETCOREAPP3_1 || NET5_0
+#if NETCOREAPP3_1_OR_GREATER
 using System.Runtime.Intrinsics.X86;
 #endif
 
@@ -233,7 +233,7 @@ public static unsafe uint SetFlag(uint value, int n, bool flag)
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static uint ExtractRange(uint value, byte start, byte length)
     {
-#if NETCOREAPP3_1 || NET5_0
+#if NETCOREAPP3_1_OR_GREATER
         if (Bmi1.IsSupported)
         {
             return Bmi1.BitFieldExtract(value, start, length);
@@ -280,7 +280,7 @@ public static uint SetRange(uint value, byte start, byte length, uint flags)
         uint loadMask = highBits << start;
         uint storeMask = (flags & highBits) << start;
 
-#if NETCOREAPP3_1 || NET5_0
+#if NETCOREAPP3_1_OR_GREATER
         if (Bmi1.IsSupported)
         {
             return Bmi1.AndNot(loadMask, value) | storeMask;
@@ -400,7 +400,7 @@ public static unsafe ulong SetFlag(ulong value, int n, bool flag)
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static ulong ExtractRange(ulong value, byte start, byte length)
     {
-#if NETCOREAPP3_1 || NET5_0
+#if NETCOREAPP3_1_OR_GREATER
         if (Bmi1.X64.IsSupported)
         {
             return Bmi1.X64.BitFieldExtract(value, start, length);
@@ -447,7 +447,7 @@ public static ulong SetRange(ulong value, byte start, byte length, ulong flags)
         ulong loadMask = highBits << start;
         ulong storeMask = (flags & highBits) << start;
 
-#if NETCOREAPP3_1 || NET5_0
+#if NETCOREAPP3_1_OR_GREATER
         if (Bmi1.X64.IsSupported)
         {
             return Bmi1.X64.AndNot(loadMask, value) | storeMask;