Blittable strings generator implementation

Improvements to fixed array generator

.editorconfig

@@ -0,0 +1,129 @@
+[*.{cs,vb}]
+
+# IDE0003: Remove qualification
+dotnet_diagnostic.IDE0003.severity = error
+dotnet_style_operator_placement_when_wrapping = beginning_of_line
+tab_width = 4
+indent_size = 4
+end_of_line = crlf
+dotnet_style_coalesce_expression = true:suggestion
+dotnet_style_null_propagation = true:suggestion
+dotnet_style_prefer_is_null_check_over_reference_equality_method = true:error
+dotnet_style_prefer_auto_properties = true:error
+dotnet_style_object_initializer = true:suggestion
+dotnet_style_collection_initializer = true:suggestion
+dotnet_style_prefer_simplified_boolean_expressions = true:suggestion
+dotnet_style_prefer_conditional_expression_over_assignment = true:silent
+dotnet_style_prefer_conditional_expression_over_return = true:silent
+dotnet_style_explicit_tuple_names = true:suggestion
+dotnet_style_prefer_inferred_tuple_names = true:suggestion
+dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion
+dotnet_style_prefer_compound_assignment = true:suggestion
+dotnet_style_prefer_simplified_interpolation = true:suggestion
+dotnet_style_namespace_match_folder = true:suggestion
+
+[*.cs]
+csharp_indent_labels = one_less_than_current
+csharp_space_around_binary_operators = before_and_after
+csharp_using_directive_placement = outside_namespace:error
+csharp_prefer_simple_using_statement = true:error
+csharp_prefer_braces = true:silent
+csharp_style_namespace_declarations = file_scoped:error
+csharp_style_prefer_method_group_conversion = true:silent
+csharp_style_expression_bodied_methods = false:silent
+csharp_style_expression_bodied_constructors = false:silent
+csharp_style_expression_bodied_operators = false:silent
+csharp_style_expression_bodied_properties = true:silent
+csharp_style_expression_bodied_indexers = true:silent
+csharp_style_expression_bodied_accessors = true:silent
+csharp_style_expression_bodied_lambdas = true:silent
+csharp_style_expression_bodied_local_functions = false:silent
+csharp_style_throw_expression = true:suggestion
+csharp_style_prefer_null_check_over_type_check = true:suggestion
+csharp_prefer_simple_default_expression = true:suggestion
+csharp_style_prefer_local_over_anonymous_function = true:error
+csharp_style_prefer_index_operator = true:suggestion
+csharp_style_prefer_range_operator = true:suggestion
+csharp_style_implicit_object_creation_when_type_is_apparent = true:suggestion
+csharp_style_prefer_tuple_swap = true:suggestion
+csharp_style_inlined_variable_declaration = true:suggestion
+csharp_style_deconstructed_variable_declaration = true:error
+csharp_style_unused_value_assignment_preference = discard_variable:error
+csharp_style_unused_value_expression_statement_preference = discard_variable:silent
+csharp_prefer_static_local_function = true:suggestion
+csharp_style_allow_embedded_statements_on_same_line_experimental = true:silent
+csharp_style_allow_blank_lines_between_consecutive_braces_experimental = false:suggestion
+csharp_style_allow_blank_line_after_colon_in_constructor_initializer_experimental = true:silent
+csharp_style_conditional_delegate_call = true:suggestion
+csharp_style_prefer_parameter_null_checking = true:suggestion
+csharp_style_prefer_switch_expression = true:suggestion
+csharp_style_prefer_pattern_matching = true:silent
+csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion
+csharp_style_pattern_matching_over_as_with_null_check = true:suggestion
+csharp_style_prefer_not_pattern = true:suggestion
+csharp_style_prefer_extended_property_pattern = true:suggestion
+csharp_style_var_for_built_in_types = true:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+csharp_style_var_elsewhere = true:suggestion
+[*.{cs,vb}]
+#### Naming styles ####
+
+# Naming rules
+
+dotnet_naming_rule.interface_should_be_begins_with_i.severity = suggestion
+dotnet_naming_rule.interface_should_be_begins_with_i.symbols = interface
+dotnet_naming_rule.interface_should_be_begins_with_i.style = begins_with_i
+
+dotnet_naming_rule.types_should_be_pascal_case.severity = suggestion
+dotnet_naming_rule.types_should_be_pascal_case.symbols = types
+dotnet_naming_rule.types_should_be_pascal_case.style = pascal_case
+
+dotnet_naming_rule.non_field_members_should_be_pascal_case.severity = suggestion
+dotnet_naming_rule.non_field_members_should_be_pascal_case.symbols = non_field_members
+dotnet_naming_rule.non_field_members_should_be_pascal_case.style = pascal_case
+
+# Symbol specifications
+
+dotnet_naming_symbols.interface.applicable_kinds = interface
+dotnet_naming_symbols.interface.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.interface.required_modifiers = 
+
+dotnet_naming_symbols.types.applicable_kinds = class, struct, interface, enum
+dotnet_naming_symbols.types.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.types.required_modifiers = 
+
+dotnet_naming_symbols.non_field_members.applicable_kinds = property, event, method
+dotnet_naming_symbols.non_field_members.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.non_field_members.required_modifiers = 
+
+# Naming styles
+
+dotnet_naming_style.begins_with_i.required_prefix = I
+dotnet_naming_style.begins_with_i.required_suffix = 
+dotnet_naming_style.begins_with_i.word_separator = 
+dotnet_naming_style.begins_with_i.capitalization = pascal_case
+
+dotnet_naming_style.pascal_case.required_prefix = 
+dotnet_naming_style.pascal_case.required_suffix = 
+dotnet_naming_style.pascal_case.word_separator = 
+dotnet_naming_style.pascal_case.capitalization = pascal_case
+
+dotnet_naming_style.pascal_case.required_prefix = 
+dotnet_naming_style.pascal_case.required_suffix = 
+dotnet_naming_style.pascal_case.word_separator = 
+dotnet_naming_style.pascal_case.capitalization = pascal_case
+dotnet_style_readonly_field = true:suggestion
+dotnet_style_predefined_type_for_locals_parameters_members = true:silent
+dotnet_style_predefined_type_for_member_access = true:silent
+dotnet_style_require_accessibility_modifiers = for_non_interface_members:silent
+dotnet_style_allow_multiple_blank_lines_experimental = true:silent
+dotnet_style_allow_statement_immediately_after_block_experimental = false:suggestion
+dotnet_code_quality_unused_parameters = all:error
+dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:suggestion
+dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:suggestion
+dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:suggestion
+dotnet_style_parentheses_in_other_operators = never_if_unnecessary:suggestion
+dotnet_style_qualification_for_field = true:error
+dotnet_style_qualification_for_property = true:error
+dotnet_style_qualification_for_method = true:error
+dotnet_style_qualification_for_event = true:error

.github/CODEOWNERS

@@ -0,0 +1 @@
+*	amacocian@yahoo.com

.github/dependabot.yml

@@ -0,0 +1,16 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: "nuget"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/cd.yaml

@@ -4,10 +4,7 @@ on:
   push:
     branches:
       - master
-  pull_request:
-    branches:
-      - master
-      
+
 jobs:
 
   build:
@@ -20,21 +17,23 @@ jobs:
 
     env:
       Configuration: Release
-      Solution_Path: SystemExtensions.sln
-      Test_Project_Path: SystemExtensions.Tests\SystemExtensions.Tests.csproj
+      Solution_Path: SystemExtensions.slnx
+      Test_Project_Path: SystemExtensions.Tests\SystemExtensions.NetStandard.Tests.csproj
+      DI_Test_Project_Path: SystemExtensions.DependencyInjection.Tests\SystemExtensions.NetStandard.DependencyInjection.Tests.csproj
       Source_Project_Path: SystemExtensions.NetStandard\SystemExtensions.NetStandard.csproj
+      Core_Project_Path: SystemExtensions.NetCore\SystemExtensions.NetCore.csproj
       Actions_Allow_Unsecure_Commands: true
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         fetch-depth: 0
 
     - name: Install .NET Core
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: '5.0.202'
+        dotnet-version: '10.0.x'
 
     - name: Setup MSBuild.exe
       uses: microsoft/setup-msbuild@v1.0.1
@@ -44,12 +43,35 @@ jobs:
       env:
         RuntimeIdentifier: win-${{ matrix.targetplatform }}
 
-    - name: Build Slim project
+    - name: Build SystemExtensions.NetStandard project
       run: dotnet build SystemExtensions.NetStandard -c $env:Configuration
 
-    - name: Push nuget package
-      uses: brandedoutcast/publish-nuget@v2.5.5
-      with:
-         PROJECT_FILE_PATH: SystemExtensions.NetStandard\SystemExtensions.NetStandard.csproj
-         NUGET_KEY: ${{secrets.NUGET_API_KEY}}
-    
+    - name: Build SystemExtensions.NetCore project
+      run: dotnet build SystemExtensions.NetCore -c $env:Configuration
+
+    - name: Build SystemExtensions.NetStandard.DependencyInjection project
+      run: dotnet build SystemExtensions.NetStandard.DependencyInjection -c $env:Configuration
+
+    - name: Build SystemExtensions.NetStandard.Security project
+      run: dotnet build SystemExtensions.NetStandard.Security -c $env:Configuration
+
+    - name: Build SystemExtensions.NetStandard.Generators project
+      run: dotnet build SystemExtensions.NetStandard.Generators -c $env:Configuration
+
+    - name: Package SystemExtensions.NetStandard
+      run: dotnet pack -c Release -o . SystemExtensions.NetStandard\SystemExtensions.NetStandard.csproj
+
+    - name: Package SystemExtensions.NetCore
+      run: dotnet pack -c Release -o . SystemExtensions.NetCore\SystemExtensions.NetCore.csproj
+
+    - name: Package SystemExtensions.NetStandard.DependencyInjection
+      run: dotnet pack -c Release -o . SystemExtensions.NetStandard.DependencyInjection\SystemExtensions.NetStandard.DependencyInjection.csproj
+
+    - name: Package SystemExtensions.NetStandard.Security
+      run: dotnet pack -c Release -o . SystemExtensions.NetStandard.Security\SystemExtensions.NetStandard.Security.csproj
+
+    - name: Package SystemExtensions.NetStandard.Generators
+      run: dotnet pack -c Release -o . SystemExtensions.NetStandard.Generators\SystemExtensions.NetStandard.Generators.csproj
+
+    - name: Publish
+      run: dotnet nuget push *.nupkg --api-key ${{ secrets.NUGET_API_KEY }} --source https://api.nuget.org/v3/index.json --skip-duplicate

.github/workflows/ci.yaml

@@ -19,21 +19,23 @@ jobs:
     runs-on: windows-latest
 
     env:
-      Solution_Path: Slim.sln
-      Test_Project_Path: SystemExtensions.Tests\SystemExtensions.Tests.csproj
+      Solution_Path: SystemExtensions.slnx
+      Test_Project_Path: SystemExtensions.Tests\SystemExtensions.NetStandard.Tests.csproj
+      DI_Test_Project_Path: SystemExtensions.DependencyInjection.Tests\SystemExtensions.NetStandard.DependencyInjection.Tests.csproj
+      Sec_Test_Project_Path: SystemExtensions.NetStandard.Security.Tests\SystemExtensions.NetStandard.Security.Tests.csproj
       Source_Project_Path: SystemExtensions.NetStandard\SystemExtensions.NetStandard.csproj
       Actions_Allow_Unsecure_Commands: true
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         fetch-depth: 0
 
     - name: Install .NET Core
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: '5.0.202'
+        dotnet-version: '10.0.x'
 
     - name: Setup MSBuild.exe
       uses: microsoft/setup-msbuild@v1.0.1
@@ -41,6 +43,12 @@ jobs:
     - name: Execute Unit Tests
       run: dotnet test $env:Test_Project_Path
 
+    - name: Execute DI Unit Tests
+      run: dotnet test $env:DI_Test_Project_Path
+
+    - name: Execute Security Unit Tests
+      run: dotnet test $env:Sec_Test_Project_Path
+
     - name: Restore Project
       run: msbuild $env:Solution_Path /t:Restore /p:Configuration=$env:Configuration /p:RuntimeIdentifier=$env:RuntimeIdentifier
       env:

SystemExtensions.DependencyInjection.Tests/Http/HttpClientBuilderTests.cs

@@ -0,0 +1,96 @@
+using FluentAssertions;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NSubstitute;
+using NSubstitute.ExceptionExtensions;
+using System;
+using System.Linq;
+using System.Net.Http;
+using System.Threading.Tasks;
+using SystemExtensions.NetStandard.DependencyInjection.Tests.Http.Models;
+
+namespace SystemExtensions.NetStandard.DependencyInjection.Tests.Http;
+
+[TestClass]
+public sealed class HttpClientBuilderTests
+{
+    private const string SomeHeader = "SomeHeader";
+    private const string SomeValue = "SomeValue";
+
+    private readonly HttpClientBuilder<object> httpClientBuilder;
+    private readonly IServiceCollection serviceProducerMock = Substitute.For<IServiceCollection>();
+    private readonly Uri baseAddress = new("http://contoso.co");
+
+    public HttpClientBuilderTests()
+    {
+        this.httpClientBuilder = new HttpClientBuilder<object>(this.serviceProducerMock);
+    }
+
+    [TestMethod]
+    public void Constructor_NullServiceProducer_Throws()
+    {
+        var action = () => new HttpClientBuilder<object>(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void WithMessageHandler_NullHandler_Throws()
+    {
+        var action = () => this.httpClientBuilder.WithMessageHandler(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void WithBaseAddress_NullBaseAddress_Throws()
+    {
+        var action = () => this.httpClientBuilder.WithBaseAddress(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void WithDefaultRequestHeadersSetup_NullSetup_Throws()
+    {
+        var action = () => this.httpClientBuilder.WithDefaultRequestHeadersSetup(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void Build_ReturnsServiceProducer()
+    {
+        var producer = this.httpClientBuilder.Build();
+
+        producer.Should().BeEquivalentTo(this.serviceProducerMock);
+    }
+
+    [TestMethod]
+    public async Task HttpClientBuilder_RegistersClientCorrectly_IServiceProviderReturnsExpected()
+    {
+        var container = new ServiceCollection();
+        var messageHandler = new HttpMessageHandlerMock();
+        new HttpClientBuilder<object>(container)
+            .WithBaseAddress(this.baseAddress)
+            .WithDefaultRequestHeadersSetup(header => header.TryAddWithoutValidation(SomeHeader, SomeValue))
+            .WithMaxResponseBufferSize(5)
+            .WithMessageHandler(sp => messageHandler)
+            .WithTimeout(TimeSpan.FromSeconds(5))
+            .Build();
+
+        var di = container.BuildServiceProvider();
+        var client = di.GetService<IHttpClient<object>>();
+        await client.GetAsync("");
+
+        client.Should().NotBeNull();
+        client.BaseAddress.Should().Be(this.baseAddress);
+        client.DefaultRequestHeaders.Should().HaveCount(1);
+        client.DefaultRequestHeaders.First().Key.Should().Be(SomeHeader);
+        client.DefaultRequestHeaders.First().Value.Should().HaveCount(1);
+        client.DefaultRequestHeaders.First().Value.First().Should().Be(SomeValue);
+        client.MaxResponseContentBufferSize.Should().Be(5);
+        client.Timeout.Should().Be(TimeSpan.FromSeconds(5));
+        messageHandler.Called.Should().BeTrue();
+    }
+}

SystemExtensions.DependencyInjection.Tests/Http/Models/HttpMessageHandlerMock.cs

@@ -0,0 +1,16 @@
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace SystemExtensions.NetStandard.DependencyInjection.Tests.Http.Models;
+public sealed class HttpMessageHandlerMock : HttpMessageHandler
+{
+    public bool Called { get; private set; }
+
+    protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+    {
+        this.Called = true;
+
+        return Task.FromResult(new HttpResponseMessage());
+    }
+}

SystemExtensions.DependencyInjection.Tests/SystemExtensions.NetStandard.DependencyInjection.Tests.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.5.2" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.5.2" />
+    <PackageReference Include="coverlet.collector" Version="6.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="NSubstitute" Version="5.1.0" />
+    <PackageReference Include="NSubstitute.Analyzers.CSharp" Version="1.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SystemExtensions.NetStandard.DependencyInjection\SystemExtensions.NetStandard.DependencyInjection.csproj" />
+  </ItemGroup>
+
+</Project>

SystemExtensions.DependencyInjection.Tests/WebSockets/ClientWebSocketBuilderTests.cs

@@ -0,0 +1,70 @@
+using FluentAssertions;
+using global::SystemExtensions.NetStandard.DependencyInjection.Tests.Http.Models;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NSubstitute;
+using System;
+using System.Extensions;
+using System.Linq;
+using System.Net.Http;
+using System.Net.WebSockets;
+using System.Threading.Tasks;
+
+namespace SystemExtensions.NetStandard.DependencyInjection.Tests.WebSockets;
+[TestClass]
+public sealed class HttpClientBuilderTests
+{
+    private readonly ClientWebSocketBuilder<object> clientWebSocketBuilder;
+    private readonly IServiceCollection serviceProducerMock = Substitute.For<IServiceCollection>();
+
+    public HttpClientBuilderTests()
+    {
+        this.clientWebSocketBuilder = new ClientWebSocketBuilder<object>(this.serviceProducerMock);
+    }
+
+    [TestMethod]
+    public void Constructor_NullServiceProducer_Throws()
+    {
+        var action = () => new ClientWebSocketBuilder<object>(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void WithInnerWebSocket_NullHandler_Throws()
+    {
+        var action = () => this.clientWebSocketBuilder.WithInnerWebSocket(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void WIthInnerWebSocketFactory_NullBaseAddress_Throws()
+    {
+        var action = () => this.clientWebSocketBuilder.WithInnerWebSocketFactory(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void Build_ReturnsServiceProducer()
+    {
+        var producer = this.clientWebSocketBuilder.Build();
+
+        producer.Should().BeEquivalentTo(this.serviceProducerMock);
+    }
+
+    [TestMethod]
+    public async Task ClientWebSocketBuilder_RegistersClientCorrectly_IServiceProviderReturnsExpected()
+    {
+        var container = new ServiceCollection();
+        var innerWebSocket = new ClientWebSocket();
+        container.RegisterClientWebSocket<object>()
+            .WithInnerWebSocket(innerWebSocket)
+            .Build();
+
+        var di = container.BuildServiceProvider();
+        var client = di.GetService<IClientWebSocket<object>>();
+        client.Should().NotBeNull();
+    }
+}

SystemExtensions.NetCore/Extensions/LoggingExtensions.cs

@@ -0,0 +1,17 @@
+using Microsoft.Extensions.Logging;
+using System.Logging;
+using System.Runtime.CompilerServices;
+
+namespace System.Extensions.Core;
+public static class LoggingExtensions
+{
+    public static ScopedLogger<T> CreateScopedLogger<T>(this ILogger<T> logger, string flowIdentifier, [CallerMemberName] string? methodName = default)
+    {
+        return ScopedLogger<T>.Create(logger, methodName ?? string.Empty, flowIdentifier);
+    }
+
+    public static ScopedLogger<T> CreateScopedLogger<T>(this ILogger<T> logger, [CallerMemberName] string? methodName = default)
+    {
+        return ScopedLogger<T>.Create(logger, methodName ?? string.Empty, string.Empty);
+    }
+}

SystemExtensions.NetCore/Extensions/ObjectExtensions.cs

@@ -0,0 +1,18 @@
+using System.Diagnostics.CodeAnalysis;
+using System.Runtime.CompilerServices;
+
+namespace System.Core.Extensions;
+
+public static class ObjectExtensions
+{
+    public static T ThrowIfNull<T>([NotNull] this T? obj, [CallerArgumentExpression("obj")] string? paramName = null)
+        where T : class
+    {
+        if (obj is null)
+        {
+            throw new ArgumentNullException(paramName);
+        }
+
+        return obj;
+    }
+}

SystemExtensions.NetCore/SystemExtensions.NetCore.csproj

@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+	  <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <Nullable>enable</Nullable>
+    <RootNamespace>System</RootNamespace>
+	  <PackageLicenseFile>LICENSE</PackageLicenseFile>
+	  <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
+	  <Version>1.9</Version>
+	  <Authors>Alexandru Macocian</Authors>
+	  <RepositoryUrl>https://github.com/AlexMacocian/SystemExtensions</RepositoryUrl>
+	  <Description>Extensions for the System namespace</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+	<None Include="../LICENSE">
+		<Pack>True</Pack>
+		<PackagePath></PackagePath>
+	</None>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SystemExtensions.NetStandard\SystemExtensions.NetStandard.csproj" />
+  </ItemGroup>
+</Project>

SystemExtensions.NetStandard.DependencyInjection/Extensions/ServiceCollectionExtensions.cs

@@ -0,0 +1,34 @@
+using Microsoft.Extensions.DependencyInjection;
+using System.Net.Http;
+using System.Net.WebSockets;
+
+namespace System.Extensions;
+
+public static class ServiceCollectionExtensions
+{
+    /// <summary>
+    /// Register a scoped <see cref="IHttpClient{TScope}"/> to be used by the DI engine.
+    /// </summary>
+    /// <typeparam name="T">Type of the scoped <see cref="IHttpClient{TScope}"/>.</typeparam>
+    /// <param name="services"><see cref="IServiceCollection"/>.</param>
+    /// <returns><see cref="HttpClientBuilder{T}"/> to build the http client.</returns>
+    public static HttpClientBuilder<T> RegisterHttpClient<T>(this IServiceCollection services)
+    {
+        services.ThrowIfNull(nameof(services));
+
+        return new HttpClientBuilder<T>(services);
+    }
+
+    /// <summary>
+    /// Register a scoped <see cref="IClientWebSocket{TScope}"/> to be used by the DI engine.
+    /// </summary>
+    /// <typeparam name="T">Type of the scoped <see cref="IClientWebSocket{TScope}"/>.</typeparam>
+    /// <param name="services"><see cref="IServiceCollection"/>.</param>
+    /// <returns><see cref="ClientWebSocketBuilder{T}"/> to build the websocket client.</returns>
+    public static ClientWebSocketBuilder<T> RegisterClientWebSocket<T>(this IServiceCollection services)
+    {
+        services.ThrowIfNull(nameof(services));
+
+        return new ClientWebSocketBuilder<T>(services);
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Global.cs

@@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("SystemExtensions.NetStandard.DependencyInjection.Tests")]

SystemExtensions.NetStandard.DependencyInjection/Http/HttpClientBuilder.cs

@@ -0,0 +1,88 @@
+using Microsoft.Extensions.DependencyInjection;
+using System.Extensions;
+using System.Net.Http.Headers;
+
+namespace System.Net.Http;
+
+public sealed class HttpClientBuilder<T>
+{
+    private readonly IServiceCollection services;
+
+    private Uri? baseAddress;
+    private Func<IServiceProvider, HttpMessageHandler>? httpMessageHandlerFactory;
+    private Action<HttpRequestHeaders>? defaultRequestHeadersSetup;
+    private bool disposeMessageHandler;
+    private long maxResponseBufferSize = 2147483647L; //2GB default HttpClient value [https://docs.microsoft.com/en-us/dotnet/api/system.net.http.httpclient.maxresponsecontentbuffersize?view=net-6.0]
+    private TimeSpan timeout = TimeSpan.FromSeconds(100); //100 seconds default HttpClient value [https://docs.microsoft.com/en-us/dotnet/api/system.net.http.httpclient.timeout?view=net-6.0]
+
+    internal HttpClientBuilder(IServiceCollection services)
+    {
+        services.ThrowIfNull(nameof(services));
+
+        this.services = services;
+    }
+
+    public HttpClientBuilder<T> WithMessageHandler(Func<IServiceProvider, HttpMessageHandler> httpMessageHandlerFactory)
+    {
+        httpMessageHandlerFactory.ThrowIfNull(nameof(httpMessageHandlerFactory));
+
+        this.httpMessageHandlerFactory = httpMessageHandlerFactory;
+        return this;
+    }
+
+    public HttpClientBuilder<T> WithDisposeMessageHandler(bool disposeMessageHandler)
+    {
+        this.disposeMessageHandler = disposeMessageHandler;
+        return this;
+    }
+
+    public HttpClientBuilder<T> WithBaseAddress(Uri baseAddress)
+    {
+        baseAddress.ThrowIfNull(nameof(baseAddress));
+
+        this.baseAddress = baseAddress;
+        return this;
+    }
+
+    public HttpClientBuilder<T> WithDefaultRequestHeadersSetup(Action<HttpRequestHeaders> setup)
+    {
+        setup.ThrowIfNull(nameof(setup));
+
+        this.defaultRequestHeadersSetup = setup;
+        return this;
+    }
+
+    public HttpClientBuilder<T> WithMaxResponseBufferSize(long responseBufferSize)
+    {
+        this.maxResponseBufferSize = responseBufferSize;
+        return this;
+    }
+
+    public HttpClientBuilder<T> WithTimeout(TimeSpan timeout)
+    {
+        this.timeout = timeout;
+        return this;
+    }
+
+    public IServiceCollection Build()
+    {
+        this.services.AddScoped<IHttpClient<T>>(sp =>
+        {
+            var client = this.httpMessageHandlerFactory is not null ?
+                new HttpClient<T>(this.httpMessageHandlerFactory(sp), this.disposeMessageHandler) :
+                new HttpClient<T>(true);
+
+            if (this.baseAddress is not null)
+            {
+                client.BaseAddress = this.baseAddress;
+            }
+
+            this.defaultRequestHeadersSetup?.Invoke(client.DefaultRequestHeaders);
+            client.MaxResponseContentBufferSize = this.maxResponseBufferSize;
+            client.Timeout = this.timeout;
+            return client;
+        });
+
+        return this.services;
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/SystemExtensions.NetStandard.DependencyInjection.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+    <RootNamespace>System.DependencyInjection</RootNamespace>
+    <PackageLicenseFile>LICENSE</PackageLicenseFile>
+    <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
+    <LangVersion>latest</LangVersion>
+    <Version>1.8</Version>
+    <Authors>Alexandru Macocian</Authors>
+    <RepositoryUrl>https://github.com/AlexMacocian/SystemExtensions</RepositoryUrl>
+    <Description>Extensions for the Slim Dependency Injection engine</Description>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Include="..\LICENSE" Link="LICENSE">
+      <PackagePath></PackagePath>
+      <Pack>True</Pack>
+    </None>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CorrelationVector" Version="1.0.42" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="10.0.1" />
+    <PackageReference Include="SystemExtensions.NetStandard" Version="1.8.0" />
+  </ItemGroup>
+
+</Project>

SystemExtensions.NetStandard.DependencyInjection/WebSockets/ClientWebSocketBuilder.cs

@@ -0,0 +1,58 @@
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using System.Extensions;
+using System.Net.WebSockets;
+
+namespace System.Net.Http;
+
+public sealed class ClientWebSocketBuilder<T>
+{
+    private readonly IServiceCollection services;
+
+    private ClientWebSocket? innerWebSocket;
+    private Func<IServiceProvider, ClientWebSocket>? innerWebSocketFactory;
+
+    internal ClientWebSocketBuilder(IServiceCollection services)
+    {
+        services.ThrowIfNull(nameof(services));
+        this.services = services;
+    }
+
+    public ClientWebSocketBuilder<T> WithInnerWebSocket(ClientWebSocket innerWebSocket)
+    {
+        this.innerWebSocket = innerWebSocket.ThrowIfNull(nameof(innerWebSocket));
+        return this;
+    }
+
+    public ClientWebSocketBuilder<T> WithInnerWebSocketFactory(Func<IServiceProvider, ClientWebSocket> innerWebSocketFactory)
+    {
+        this.innerWebSocketFactory = innerWebSocketFactory.ThrowIfNull(nameof(innerWebSocketFactory));
+        return this;
+    }
+
+    public IServiceCollection Build()
+    {
+        this.services.AddScoped<IClientWebSocket<T>>(sp =>
+        {
+            var logger = sp.GetService<ILogger<T>>();
+            if (logger is null)
+            {
+                return new ClientWebSocket<T>();
+            }
+
+            if (this.innerWebSocketFactory is not null)
+            {
+                return new ClientWebSocket<T>(this.innerWebSocketFactory(sp), logger);
+            }
+
+            if (this.innerWebSocket is not null)
+            {
+                return new ClientWebSocket<T>(this.innerWebSocket, logger);
+            }
+
+            return new ClientWebSocket<T>(logger);
+        });
+
+        return this.services;
+    }
+}

SystemExtensions.NetStandard.Generators/BlittableStringGenerator.cs

@@ -0,0 +1,142 @@
+using Microsoft.CodeAnalysis;
+using Sybil;
+using System.Text;
+using System.Linq;
+
+namespace System.Extensions;
+#nullable enable
+[Generator(LanguageNames.CSharp)]
+public class BlittableStringGenerator : IIncrementalGenerator
+{
+    private const string UsingSystem = "System";
+    private const string UsingSystemRuntimeInterop = "System.Runtime.InteropServices";
+    private const string AttributeNamespace = "System.Extensions";
+    private const string AttributeName = "GenerateBlittableStringAttribute";
+    private const string AttributeShortName = "GenerateBlittableString";
+    private const string String = "String";
+    private const string Public = "public";
+    private const string Required = "required";
+    private const string Size = "Size";
+    private const string Int = "int";
+
+    public void Initialize(IncrementalGeneratorInitializationContext context)
+    {
+        context.RegisterPostInitializationOutput(context =>
+        {
+            var compilationUnitBuilder = SyntaxBuilder.CreateCompilationUnit()
+                .WithNamespace(
+                SyntaxBuilder.CreateNamespace(AttributeNamespace)
+                    .WithClass(SyntaxBuilder.CreateClass(AttributeName)
+                        .WithModifier(Public)
+                        .WithConstructor(SyntaxBuilder.CreateConstructor(AttributeName)
+                            .WithModifier(Public))
+                        .WithAttribute(SyntaxBuilder.CreateAttribute("AttributeUsage")
+                            .WithArgument(AttributeTargets.Assembly)
+                            .WithArgument("Inherited", false)
+                            .WithArgument("AllowMultiple", true))
+                        .WithProperty(SyntaxBuilder.CreateProperty(Int, Size)
+                            .WithModifier(Public)
+                            .WithModifier(Required)
+                            .WithAccessor(SyntaxBuilder.CreateGetter())
+                            .WithAccessor(SyntaxBuilder.CreateSetter()))
+                        .WithBaseClass(nameof(Attribute))));
+            var compilationUnitSyntax = compilationUnitBuilder.Build();
+            var source = compilationUnitSyntax.ToFullString();
+            context.AddSource($"{AttributeName}.g", source);
+        });
+
+        context.RegisterSourceOutput(context.CompilationProvider, (sourceProductionContext, compilation) =>
+        {
+            var assemblyAttributes =
+            compilation.Assembly.GetAttributes().Where(a => a.AttributeClass != null &&
+                        (a.AttributeClass.Name == AttributeName || a.AttributeClass.Name == AttributeShortName));
+
+            foreach (var attr in assemblyAttributes)
+            {
+                // Extract the Size parameter from the named arguments.
+                int? fixedSize = default;
+                foreach (var arg in attr.NamedArguments)
+                {
+                    if (arg.Key == Size && arg.Value.Value is int intValue)
+                    {
+                        fixedSize = intValue;
+                        break;
+                    }
+                }
+
+                if (fixedSize is null)
+                {
+                    // As Size is required, skip if not provided.
+                    continue;
+                }
+
+                Execute(sourceProductionContext, (int)fixedSize);
+            }
+        });
+    }
+
+    private static void Execute(SourceProductionContext sourceProductionContext, int size)
+    {
+        var structName = $"{String}{size}";
+        var builder = new StringBuilder();
+        builder.AppendLine($"using {UsingSystem};");
+        builder.AppendLine($"using {UsingSystemRuntimeInterop};");
+        builder.AppendLine();
+        builder.AppendLine($"namespace {AttributeNamespace};");
+        builder.AppendLine();
+        builder.AppendLine("[StructLayout(LayoutKind.Sequential, Pack = 1)]");
+        builder.AppendLine($"public unsafe partial struct {structName}");
+        builder.AppendLine("{");
+        builder.AppendLine($"    public const int Size = {size};");
+        builder.AppendLine();
+        builder.AppendLine("    public fixed char Value[Size];");
+        builder.AppendLine();
+        builder.AppendLine("    public Span<char> AsSpan()");
+        builder.AppendLine("    {");
+        builder.AppendLine("        fixed (char* ptr = this.Value)");
+        builder.AppendLine("        {");
+        builder.AppendLine("            return MemoryMarshal.CreateSpan(ref *ptr, Size);");
+        builder.AppendLine("        }");
+        builder.AppendLine("    }");
+        builder.AppendLine();
+        builder.AppendLine("    public readonly ReadOnlySpan<char> AsReadOnlySpan()");
+        builder.AppendLine("    {");
+        builder.AppendLine("        fixed (char* ptr = this.Value)");
+        builder.AppendLine("        {");
+        builder.AppendLine("            return new ReadOnlySpan<char>(ptr, Size);");
+        builder.AppendLine("        }");
+        builder.AppendLine("    }");
+        builder.AppendLine();
+        builder.AppendLine("    public void Set(ReadOnlySpan<char> value)");
+        builder.AppendLine("    {");
+        builder.AppendLine("        fixed (char* ptr = this.Value)");
+        builder.AppendLine("        {");
+        builder.AppendLine("            var span = MemoryMarshal.CreateSpan(ref *ptr, Size);");
+        builder.AppendLine("            span.Clear();");
+        builder.AppendLine("            value[..Math.Min(value.Length, Size - 1)].CopyTo(span);");
+        builder.AppendLine("        }");
+        builder.AppendLine("    }");
+        builder.AppendLine();
+        builder.AppendLine("    public override readonly string ToString()");
+        builder.AppendLine("    {");
+        builder.AppendLine("        var span = this.AsReadOnlySpan();");
+        builder.AppendLine("        var nullIndex = span.IndexOf('\\0');");
+        builder.AppendLine("        return nullIndex >= 0 ? new string(span[..nullIndex]) : new string(span);");
+        builder.AppendLine("    }");
+        builder.AppendLine();
+        builder.AppendLine($"    public static implicit operator string({structName} value) => value.ToString();");
+        builder.AppendLine();
+        builder.AppendLine($"    public static implicit operator {structName}(string value)");
+        builder.AppendLine("    {");
+        builder.AppendLine($"        var result = default({structName});");
+        builder.AppendLine("        result.Set(value);");
+        builder.AppendLine("        return result;");
+        builder.AppendLine("    }");
+        builder.AppendLine();
+        builder.AppendLine($"    public static implicit operator ReadOnlySpan<char>({structName} value) => value.AsReadOnlySpan();");
+        builder.AppendLine("}");
+
+        sourceProductionContext.AddSource($"{structName}.g.cs", builder.ToString());
+    }
+}
+#nullable disable

SystemExtensions.NetStandard.Generators/Diagnostics.cs

@@ -0,0 +1,78 @@
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.Text;
+
+namespace System.Extensions;
+
+internal static class Diagnostics
+{
+    public const string DependencyPropertyGenerator_NoAttributeFound = "DGD 0001";
+    public const string DependencyPropertyGenerator_ClassMustBeTopLevel = "DGD 1001";
+    public const string DependencyPropertyGenerator_ClassMustBePartial = "DGD 1002";
+    public const string DependencyPropertyGenerator_ClassMustBeInNamespace = "DGD 1003";
+    public const string DependencyPropertyGenerator_ClassMustImplementINotifyPropertyChanged = "DGD 1004";
+
+    public static Diagnostic MissingAttributeDiagnostic(string attributeName, string attributeNamespace) => Diagnostic.Create(
+                new DiagnosticDescriptor(
+                    DependencyPropertyGenerator_NoAttributeFound,
+                    $"{attributeNamespace}.{attributeName} not found",
+                    "Could not find attribute with name {0} in namespace {1}.",
+                    "SystemExtensions.NetStandard.Generators",
+                    DiagnosticSeverity.Error,
+                    true,
+                    $"This error occurs when the attribute generated by the {nameof(NotifyPropertyChangedGenerator)} is not found",
+                    null),
+                Location.None,
+                attributeName, attributeNamespace);
+
+    public static Diagnostic ClassNotTopLevelDiagnostic(string className, string containingSymbol, SyntaxTree syntaxTree, TextSpan textSpan) => Diagnostic.Create(
+                new DiagnosticDescriptor(
+                    DependencyPropertyGenerator_ClassMustBeTopLevel,
+                    $"{className} must be top level",
+                    "Class {0} must be top level. It is currently declared under {1}.",
+                    "SystemExtensions.NetStandard.Generators",
+                    DiagnosticSeverity.Error,
+                    true,
+                    null,
+                    null),
+                Location.Create(syntaxTree, textSpan),
+                className, containingSymbol);
+
+    public static Diagnostic ClassNotPartial(string className) => Diagnostic.Create(
+                new DiagnosticDescriptor(
+                    DependencyPropertyGenerator_ClassMustBePartial,
+                    $"{className} is not partial",
+                    "Class {0} must be marked as partial in order for the generator to work",
+                    "SystemExtensions.NetStandard.Generators",
+                    DiagnosticSeverity.Error,
+                    true,
+                    null,
+                    null),
+                Location.None,
+                className);
+
+    public static Diagnostic ClassNotInNamespace(string className) => Diagnostic.Create(
+                new DiagnosticDescriptor(
+                    DependencyPropertyGenerator_ClassMustBeInNamespace,
+                    $"{className} is not defined in a namespace",
+                    "Class {0} must be defined inside a namespace for the generator to work",
+                    "SystemExtensions.NetStandard.Generators",
+                    DiagnosticSeverity.Error,
+                    true,
+                    null,
+                    null),
+                Location.None,
+                className);
+
+    public static Diagnostic ClassDoesNotImplementINotifyPropertyChanged(string className) => Diagnostic.Create(
+                new DiagnosticDescriptor(
+                    DependencyPropertyGenerator_ClassMustImplementINotifyPropertyChanged,
+                    $"{className} must implement INotifyPropertyChanged",
+                    "Class {0} must implement INotifyPropertyChanged for the generator to work",
+                    "SystemExtensions.NetStandard.Generators",
+                    DiagnosticSeverity.Error,
+                    true,
+                    null,
+                    null),
+                Location.None,
+                className);
+}

SystemExtensions.NetStandard.Generators/FixedArrayGenerator.cs

@@ -0,0 +1,164 @@
+using Microsoft.CodeAnalysis;
+using Sybil;
+using System.Text;
+using System.Linq;
+
+namespace System.Extensions;
+#nullable enable
+[Generator(LanguageNames.CSharp)]
+public class FixedArrayGenerator : IIncrementalGenerator
+{
+    private const string UsingSystem = "System";
+    private const string UsingSystemRuntimeInterop = "System.Runtime.InteropServices";
+    private const string AttributeNamespace = "System.Extensions";
+    private const string AttributeName = "GenerateFixedArrayAttribute";
+    private const string AttributeShortName = "GenerateFixedArray";
+    private const string Array = "Array";
+    private const string Public = "public";
+    private const string Struct = "struct";
+    private const string Required = "required";
+    private const string Size = "Size";
+    private const string Int = "int";
+    private const string TType = "T";
+
+    public void Initialize(IncrementalGeneratorInitializationContext context)
+    {
+        context.RegisterPostInitializationOutput(context =>
+        {
+            var compilationUnitBuilder = SyntaxBuilder.CreateCompilationUnit()
+                .WithNamespace(
+                SyntaxBuilder.CreateNamespace(AttributeNamespace)
+                    .WithClass(SyntaxBuilder.CreateClass(AttributeName)
+                        .WithModifier(Public)
+                        .WithTypeParameter(SyntaxBuilder.CreateTypeParameter(TType))
+                        .WithTypeParameterConstraint(SyntaxBuilder.CreateTypeParameterConstraint(TType)
+                            .WithType(Struct))
+                        .WithConstructor(SyntaxBuilder.CreateConstructor(AttributeName)
+                            .WithModifier(Public))
+                        .WithAttribute(SyntaxBuilder.CreateAttribute("AttributeUsage")
+                            .WithArgument(AttributeTargets.Assembly)
+                            .WithArgument("Inherited", false)
+                            .WithArgument("AllowMultiple", true))
+                        .WithProperty(SyntaxBuilder.CreateProperty(Int, Size)
+                            .WithModifier(Public)
+                            .WithModifier(Required)
+                            .WithAccessor(SyntaxBuilder.CreateGetter())
+                            .WithAccessor(SyntaxBuilder.CreateSetter()))
+                        .WithBaseClass(nameof(Attribute))));
+            var compilationUnitSyntax = compilationUnitBuilder.Build();
+            var source = compilationUnitSyntax.ToFullString();
+            context.AddSource($"{AttributeName}.g", source);
+        });
+
+        context.RegisterSourceOutput(context.CompilationProvider, (sourceProductionContext, compilation) =>
+        {
+            var assemblyAttributes =
+            compilation.Assembly.GetAttributes().Where(a => a.AttributeClass != null &&
+                        (a.AttributeClass.Name == AttributeName || a.AttributeClass.Name == AttributeShortName));
+
+            foreach (var attr in assemblyAttributes)
+            {
+                // Extract the type argument (T) from GenerateFixedArrayAttribute<T>
+                var namedTypeSymbol = attr.AttributeClass as INamedTypeSymbol;
+                if (namedTypeSymbol is null || namedTypeSymbol.TypeArguments.Length != 1)
+                {
+                    continue;
+                }
+
+                var targetType = namedTypeSymbol.TypeArguments[0].ToDisplayString(SymbolDisplayFormat.MinimallyQualifiedFormat);
+                // Extract the Size parameter from the named arguments.
+                int? fixedSize = default;
+                foreach (var arg in attr.NamedArguments)
+                {
+                    if (arg.Key == Size && arg.Value.Value is int intValue)
+                    {
+                        fixedSize = intValue;
+                        break;
+                    }
+                }
+
+                if (fixedSize is null)
+                {
+                    // As Size is required, skip if not provided.
+                    continue;
+                }
+
+                Execute(sourceProductionContext, targetType, (int)fixedSize);
+            }
+        });
+    }
+
+    private static void Execute(SourceProductionContext sourceProductionContext, string targetType, int size)
+    {
+        var capitalizedType = targetType.ToUpperInvariant()[0] + targetType.Substring(1);
+        var structName = $"{Array}{size}{capitalizedType}";
+        var builder = new StringBuilder();
+        builder.AppendLine($"using {UsingSystem};");
+        builder.AppendLine($"using {UsingSystemRuntimeInterop};");
+        builder.AppendLine();
+        builder.AppendLine($"namespace {AttributeNamespace};");
+        builder.AppendLine();
+        builder.AppendLine("[StructLayout(LayoutKind.Sequential, Pack = 1)]");
+        builder.AppendLine($"public unsafe struct {structName}");
+        builder.AppendLine("{");
+        builder.AppendLine($"    private const int Size = {size};");
+        builder.AppendLine();
+        builder.AppendLine($"    private fixed {targetType} elements[Size];");
+        builder.AppendLine();
+        builder.AppendLine("    public int Length => Size;");
+        builder.AppendLine();
+        builder.AppendLine($"    public ref {targetType} this[int index]");
+        builder.AppendLine("    {");
+        builder.AppendLine("        get");
+        builder.AppendLine("        {");
+        builder.AppendLine("            if ((uint)index >= Size) throw new IndexOutOfRangeException();");
+        builder.AppendLine($"            return ref this.elements[index];");
+        builder.AppendLine("        }");
+        builder.AppendLine("    }");
+        builder.AppendLine();
+        builder.AppendLine($"    public Span<{targetType}> AsSpan()");
+        builder.AppendLine("    {");
+        builder.AppendLine($"        fixed ({targetType}* ptr = this.elements)");
+        builder.AppendLine("        {");
+        builder.AppendLine($"            return MemoryMarshal.CreateSpan(ref *ptr, Size);");
+        builder.AppendLine("        }");
+        builder.AppendLine("    }");
+        builder.AppendLine();
+        builder.AppendLine($"    public readonly ReadOnlySpan<{targetType}> AsReadOnlySpan()");
+        builder.AppendLine("    {");
+        builder.AppendLine($"        fixed ({targetType}* ptr = this.elements)");
+        builder.AppendLine("        {");
+        builder.AppendLine($"            return new ReadOnlySpan<{targetType}>(ptr, Size);");
+        builder.AppendLine("        }");
+        builder.AppendLine("    }");
+        builder.AppendLine();
+        builder.AppendLine($"    public void Set(ReadOnlySpan<{targetType}> value)");
+        builder.AppendLine("    {");
+        builder.AppendLine($"        fixed ({targetType}* ptr = this.elements)");
+        builder.AppendLine("        {");
+        builder.AppendLine($"            var span = MemoryMarshal.CreateSpan(ref *ptr, Size);");
+        builder.AppendLine("            span.Clear();");
+        builder.AppendLine("            value[..Math.Min(value.Length, Size)].CopyTo(span);");
+        builder.AppendLine("        }");
+        builder.AppendLine("    }");
+        builder.AppendLine();
+        builder.AppendLine($"    public void Clear()");
+        builder.AppendLine("    {");
+        builder.AppendLine($"        fixed ({targetType}* ptr = this.elements)");
+        builder.AppendLine("        {");
+        builder.AppendLine($"            MemoryMarshal.CreateSpan(ref *ptr, Size).Clear();");
+        builder.AppendLine("        }");
+        builder.AppendLine("    }");
+        builder.AppendLine();
+        builder.AppendLine($"    public static {structName} From{capitalizedType}Array({targetType}[] array)");
+        builder.AppendLine("    {");
+        builder.AppendLine($"        var arr = default({structName});");
+        builder.AppendLine("        arr.Set(array);");
+        builder.AppendLine("        return arr;");
+        builder.AppendLine("    }");
+        builder.AppendLine("}");
+
+        sourceProductionContext.AddSource($"{structName}.g.cs", builder.ToString());
+    }
+}
+#nullable disable

SystemExtensions.NetStandard.Generators/NotifyPropertyChangedGenerator.cs

@@ -0,0 +1,173 @@
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Sybil;
+using System.Collections.Immutable;
+using System.Linq;
+
+namespace System.Extensions;
+#nullable enable
+[Generator(LanguageNames.CSharp)]
+public class NotifyPropertyChangedGenerator : IIncrementalGenerator
+{
+    private const string AttributeNamespace = "System.Extensions";
+    private const string AttributeName = "GenerateNotifyPropertyChangedAttribute";
+    private const string AttributeShortName = "GenerateNotifyPropertyChanged";
+    private const string PropertyChangedEventHandler = "PropertyChangedEventHandler";
+    private const string NullablePropertyChangedEventHandler = "PropertyChangedEventHandler?";
+    private const string PropertyChanged = "PropertyChanged";
+    private const string Partial = "partial";
+    private const string Public = "public";
+
+    public void Initialize(IncrementalGeneratorInitializationContext context)
+    {
+        context.RegisterPostInitializationOutput(context =>
+        {
+            var compilationUnitBuilder = SyntaxBuilder.CreateCompilationUnit()
+                .WithNamespace(
+                SyntaxBuilder.CreateNamespace(AttributeNamespace)
+                    .WithClass(SyntaxBuilder.CreateClass(AttributeName)
+                        .WithModifier(Public)
+                    .WithConstructor(SyntaxBuilder.CreateConstructor(AttributeName)
+                        .WithModifier(Public))
+                    .WithAttribute(SyntaxBuilder.CreateAttribute("AttributeUsage")
+                        .WithArgument(AttributeTargets.Field)
+                        .WithArgument("Inherited", false)
+                        .WithArgument("AllowMultiple", false))
+                    .WithBaseClass(nameof(Attribute))));
+            var compilationUnitSyntax = compilationUnitBuilder.Build();
+            var source = compilationUnitSyntax.ToFullString();
+            context.AddSource($"{AttributeName}.g", source);
+        });
+
+        var classDeclarations = context.SyntaxProvider.CreateSyntaxProvider(
+            predicate: static (s, _) => s is FieldDeclarationSyntax,
+            transform: static (ctx, _) => GetFilteredFieldDeclarationSyntax(ctx)).Where(static c => c is not null);
+
+        var compilationAndClasses = context.CompilationProvider.Combine(classDeclarations.Collect());
+        context.RegisterSourceOutput(compilationAndClasses, (sourceProductionContext, tuple) => Execute(tuple.Left, tuple.Right, sourceProductionContext));
+    }
+
+    private static ClassDeclarationSyntax? GetFilteredFieldDeclarationSyntax(GeneratorSyntaxContext context)
+    {
+        var fieldDeclarationSyntax = (FieldDeclarationSyntax)context.Node;
+        if (fieldDeclarationSyntax.AttributeLists
+            .SelectMany(l => l.Attributes)
+            .OfType<AttributeSyntax>()
+            .Any(s => s.Name.ToString() == AttributeName || s.Name.ToString() == AttributeShortName))
+        {
+            return fieldDeclarationSyntax.Parent as ClassDeclarationSyntax;
+        }
+
+        return default;
+    }
+
+    private static void Execute(Compilation compilation, ImmutableArray<ClassDeclarationSyntax?> classes, SourceProductionContext sourceProductionContext)
+    {
+        if (classes.IsDefaultOrEmpty)
+        {
+            return;
+        }
+
+        var maybeLanguageVersion = (compilation.SyntaxTrees.FirstOrDefault()?.Options as CSharpParseOptions)?.LanguageVersion;
+        if (!maybeLanguageVersion.HasValue)
+        {
+            return;
+        }
+
+        var languageVersion = maybeLanguageVersion.Value;
+        var distinctClasses = classes.Distinct();
+        foreach (var c in distinctClasses.OfType<ClassDeclarationSyntax>())
+        {
+            var className = c.Identifier.ToFullString();
+            if (!c.Modifiers.Any(m => m.ToString() == Partial))
+            {
+                Diagnostics.ClassNotPartial(className);
+                continue;
+            }
+
+            var originalNamespaceSyntax = GetParentOfType<BaseNamespaceDeclarationSyntax>(c);
+            if (originalNamespaceSyntax is null)
+            {
+                Diagnostics.ClassNotInNamespace(className);
+                continue;
+            }
+
+            if (!c.Members
+                .OfType<EventFieldDeclarationSyntax>()
+                .Any(eventField =>
+                    (eventField.Declaration.Variables.Any(variable => variable.Identifier.Text == PropertyChanged) &&
+                    eventField.Modifiers.Any(modifier => modifier.Text == Public) &&
+                    eventField.Declaration.Type.ToString() == PropertyChangedEventHandler) ||
+                    eventField.Declaration.Type.ToString() == NullablePropertyChangedEventHandler))
+            {
+                Diagnostics.ClassDoesNotImplementINotifyPropertyChanged(className);
+                continue;
+            }
+
+            var generatedClassBuilder = SyntaxBuilder.CreateClass(className)
+                .WithModifiers(string.Join(" ", c.Modifiers.Select(m => m.ToFullString())));
+            var compilationUnitBuilder = SyntaxBuilder.CreateCompilationUnit()
+                .WithNamespace(
+                    (languageVersion >= LanguageVersion.CSharp10 ?
+                    SyntaxBuilder.CreateFileScopedNamespace(originalNamespaceSyntax.Name.ToFullString()) :
+                    SyntaxBuilder.CreateNamespace(originalNamespaceSyntax.Name.ToFullString()))
+                    .WithClass(generatedClassBuilder));
+            
+            foreach (var field in c.DescendantNodes().OfType<FieldDeclarationSyntax>())
+            {
+                if (field.AttributeLists
+                    .SelectMany(l => l.Attributes)
+                    .OfType<AttributeSyntax>()
+                    .Any(s => s.Name.ToString() == AttributeName ||
+                        s.Name.ToString() == AttributeShortName) is false)
+                {
+                    continue;
+                }
+
+                var fieldName = field.Declaration.Variables.First().Identifier.ToFullString();
+                var propertyName = fieldName.TrimStart('_');
+                propertyName = $"{char.ToUpper(propertyName[0])}{propertyName.Substring(1)}";
+                var propertyBuilder = SyntaxBuilder.CreateProperty(field.Declaration.Type.ToFullString(), propertyName)
+                    .WithModifier(Public)
+                    .WithAccessor(SyntaxBuilder.CreateGetter()
+                        .WithBody($"return this.{fieldName};"))
+                    .WithAccessor(SyntaxBuilder.CreateSetter()
+                        .WithBody($"this.{fieldName} = value;\r\nthis.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof({propertyName})));"));
+                generatedClassBuilder.WithProperty(propertyBuilder);
+            }
+
+            var generatedSyntax = compilationUnitBuilder.Build();
+            if (originalNamespaceSyntax.Usings.Count != 0)
+            {
+                generatedSyntax = generatedSyntax.AddUsings([.. originalNamespaceSyntax.Usings]);
+            }
+            else
+            {
+                if (originalNamespaceSyntax.Parent is CompilationUnitSyntax compilationUnit)
+                {
+                    generatedSyntax = generatedSyntax.AddUsings([.. compilationUnit.Usings]);
+                }
+            }
+
+            var fileSource = $"#nullable enable\n{generatedSyntax.ToFullString()}\n#nullable disable";
+            sourceProductionContext.AddSource($"{className}.g", fileSource);
+        }
+    }
+
+    private static T? GetParentOfType<T>(SyntaxNode syntaxNode)
+    {
+        if (syntaxNode.Parent is null)
+        {
+            return default;
+        }
+
+        if (syntaxNode.Parent is T parentNode)
+        {
+            return parentNode;
+        }
+
+        return GetParentOfType<T>(syntaxNode.Parent);
+    }
+}
+#nullable disable

SystemExtensions.NetStandard.Generators/SystemExtensions.NetStandard.Generators.csproj

@@ -0,0 +1,30 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <Authors>Alexandru Macocian</Authors>
+    <Description>Source generators extensions for netstandard2.0.</Description>
+    <Version>0.1.7</Version>
+    <LangVersion>latest</LangVersion>
+    <EnableNETAnalyzers>true</EnableNETAnalyzers>
+    <EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>
+    <IsRoslynComponent>true</IsRoslynComponent>
+    <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.8.0" PrivateAssets="all" />
+    <PackageReference Include="Sybil" Version="0.8.4" PrivateAssets="all" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <!-- Package the generator in the analyzer directory of the nuget package -->
+    <None Include="$(OutputPath)\$(AssemblyName).dll" Pack="true" PackagePath="analyzers/dotnet/cs" Visible="false" />
+    <None Include="$(OutputPath)\Sybil.dll" Pack="true" PackagePath="analyzers/dotnet/cs" Visible="false" />
+  </ItemGroup>
+
+</Project>

SystemExtensions.NetStandard.Security.Tests/AesEncrypterTests.cs

@@ -0,0 +1,104 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using System.IO;
+using System.Security.Cryptography;
+using System.Security.Encryption;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SystemExtensions.NetStandard.Security.Tests;
+
+[TestClass]
+public class AesEncrypterTests
+{
+    private ISymmetricEncrypter symmetricEncrypter;
+    private string keyString;
+    private byte[] keyBytes;
+    private byte[] ivBytes;
+    private string ivString;
+    private string toEncryptString;
+    private byte[] toEncryptBytes;
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.symmetricEncrypter = new AesEncrypter();
+        this.keyBytes = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2 };
+        this.keyString = Convert.ToBase64String(this.keyBytes);
+        this.ivBytes = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6 };
+        this.ivString = Convert.ToBase64String(this.ivBytes);
+        this.toEncryptBytes = Encoding.UTF8.GetBytes("toEncrypt");
+        this.toEncryptString = Convert.ToBase64String(this.toEncryptBytes);
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptStringWithStringKeyStringIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyString, this.ivString, this.toEncryptString).ConfigureAwait(false);
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyString, this.ivString, encrypted).ConfigureAwait(false);
+
+        this.toEncryptString.Should().Be(decrypted);
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptStringWithByteKeyByteIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyBytes, this.ivBytes, this.toEncryptString).ConfigureAwait(false);
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyBytes, this.ivBytes, encrypted).ConfigureAwait(false);
+
+        this.toEncryptString.Should().Be(decrypted);
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptByteWithStringKeyStringIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyString, this.ivString, this.toEncryptBytes).ConfigureAwait(false);
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyString, this.ivString, encrypted).ConfigureAwait(false);
+
+        this.toEncryptBytes.Should().BeEquivalentTo(decrypted);
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptByteWithByteKeyByteIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyBytes, this.ivBytes, this.toEncryptBytes).ConfigureAwait(false);
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyBytes, this.ivBytes, encrypted).ConfigureAwait(false);
+
+        this.toEncryptBytes.Should().BeEquivalentTo(decrypted);
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptStreamWithStringKeyStringIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyString, this.ivString, new MemoryStream(this.toEncryptBytes)).ConfigureAwait(false);
+        encrypted.Position = 0;
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyString, this.ivString, encrypted).ConfigureAwait(false);
+
+        this.toEncryptBytes.Should().BeEquivalentTo(((MemoryStream)decrypted).ToArray());
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptStreamWithByteKeyByteIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyBytes, this.ivBytes, new MemoryStream(this.toEncryptBytes)).ConfigureAwait(false);
+        encrypted.Position = 0;
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyBytes, this.ivBytes, encrypted).ConfigureAwait(false);
+
+        this.toEncryptBytes.Should().BeEquivalentTo(((MemoryStream)decrypted).ToArray());
+    }
+
+    [TestMethod]
+    public void GetEncryptionStreamReturnsCryptoStream()
+    {
+        var encryptionStream = this.symmetricEncrypter.GetEncryptionStream(this.keyBytes, this.ivBytes, new MemoryStream());
+        encryptionStream.Should().BeAssignableTo<CryptoStream>();
+    }
+
+    [TestMethod]
+    public void GetDecryptionStreamReturnsCryptoStream()
+    {
+        var encryptionStream = this.symmetricEncrypter.GetDecryptionStream(this.keyBytes, this.ivBytes, new MemoryStream());
+        encryptionStream.Should().BeAssignableTo<CryptoStream>();
+    }
+}

SystemExtensions.NetStandard.Security.Tests/CryptoRngProviderTests.cs

@@ -0,0 +1,54 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Linq;
+using System.Security.Rng;
+
+namespace SystemExtensions.NetStandard.Security.Tests;
+
+[TestClass]
+public class CryptoRngProviderTests
+{
+    private CryptoRngProvider cryptoRngProvider;
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.cryptoRngProvider = new CryptoRngProvider();
+    }
+
+    [TestMethod]
+    public void GetBytes_ShouldSetValues()
+    {
+        var bytes = new byte[100];
+
+        this.cryptoRngProvider.GetBytes(bytes);
+
+        bytes.All(b => b == 0).Should().BeFalse();
+    }
+
+    [TestMethod]
+    public void GetNonZeroBytes_ShouldSetNonZeroValues()
+    {
+        var bytes = new byte[100];
+
+        this.cryptoRngProvider.GetNonZeroBytes(bytes);
+
+        bytes.All(b => b != 0).Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void GetBytes_ShouldReturnBytes()
+    {
+        var bytes = this.cryptoRngProvider.GetBytes(10);
+
+        bytes.Length.Should().Be(10);
+    }
+
+    [TestMethod]
+    public void GetNonZeroBytes_ShouldReturnBytes()
+    {
+        var bytes = this.cryptoRngProvider.GetNonZeroBytes(10);
+
+        bytes.Length.Should().Be(10);
+    }
+}

SystemExtensions.NetStandard.Security.Tests/Rfc2898DeriveBytesPasswordHashingServiceTests.cs

@@ -0,0 +1,260 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using System.Security.Hashing;
+using System.Threading.Tasks;
+
+namespace SystemExtensions.NetStandard.Security.Tests;
+
+[TestClass]
+public sealed class Rfc2898DeriveBytesPasswordHashingServiceTests
+{
+    private const int TooShortHashLength = 31;
+    private const int DesiredHashLength = 32;
+    private const int Iterations = 10000;
+    private const int TooLittleIterations = 1000;
+
+    private readonly Rfc2898DeriveBytesPasswordHashingService rfc2898DeriveBytesPasswordHashingService = new();
+
+    private byte[] tooShortSaltBytes;
+    private string tooShortSaltString;
+    private byte[] incorrectSaltBytes;
+    private string incorrectSaltString;
+    private byte[] saltBytes;
+    private string saltString;
+    private byte[] passwordBytes;
+    private string passwordString;
+    private byte[] incorrectPasswordBytes;
+    private string incorrectPasswordString;
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.tooShortSaltBytes = new byte[16];
+        this.tooShortSaltString = Convert.ToBase64String(this.tooShortSaltBytes);
+        this.saltBytes = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 };
+        this.incorrectSaltBytes = new byte[32];
+        this.incorrectSaltString = Convert.ToBase64String(this.incorrectSaltBytes);
+        this.saltString = Convert.ToBase64String(this.saltBytes);
+        this.passwordBytes = new byte[] { 5, 1, 2, 34, 35, 123, 4, 23, 1, 235, 32, 234 };
+        this.passwordString = Convert.ToBase64String(this.passwordBytes);
+        this.incorrectPasswordBytes = new byte[] { 14, 123, 23, 4, 2, 1, 23, 25 };
+        this.incorrectPasswordString = Convert.ToBase64String(this.incorrectPasswordBytes);
+    }
+
+    [TestMethod]
+    public void PasswordNull_HashBytes_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<byte[]>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(null, this.saltBytes, DesiredHashLength, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void PasswordNull_HashString_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<string>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(null, this.saltString, DesiredHashLength, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void SaltNull_HashBytes_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<byte[]>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, null, DesiredHashLength, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void SaltNull_HashString_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<string>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, null, DesiredHashLength, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void HashLengthTooSmall_HashBytes_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<byte[]>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, TooShortHashLength, Iterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void HashLengthTooSmall_HashString_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<string>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, TooShortHashLength, Iterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void TooLittleIterations_HashBytes_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<byte[]>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void TooLittleIterations_HashString_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<string>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void TooShortSalt_HashBytes_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<byte[]>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.tooShortSaltBytes, DesiredHashLength, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void TooShortSalt_HashString_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<string>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.tooShortSaltString, DesiredHashLength, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void PasswordNull_VerifyBytes_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(null, this.incorrectPasswordBytes, this.saltBytes, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void PasswordNull_VerifyString_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(null, this.incorrectPasswordString, this.saltString, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void HashNull_VerifyBytes_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordBytes, null, this.saltBytes, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void HashNull_VerifyString_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordString, null, this.saltString, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void SaltNull_VerifyBytes_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordBytes, this.incorrectPasswordBytes, null, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void SaltNull_VerifyString_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordString, this.incorrectPasswordString, null, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void TooLittleIterations_VerifyBytes_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordBytes, this.incorrectPasswordBytes, this.saltBytes, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void TooLittleIterations_VerifyString_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordString, this.incorrectPasswordString, this.saltString, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public async Task HashBytes_ReturnsHashedBytes()
+    {
+        var hashedBytes = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, Iterations);
+
+        hashedBytes.Should().NotBeNull();
+        hashedBytes.Should().HaveCount(DesiredHashLength);
+    }
+    [TestMethod]
+    public async Task HashString_ReturnsHashedString()
+    {
+        var hashedString = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, Iterations);
+
+        hashedString.Should().NotBeNull();
+        var hashedBytes = Convert.FromBase64String(hashedString);
+        hashedBytes.Should().HaveCount(DesiredHashLength);
+    }
+    [TestMethod]
+    public async Task VerifyBytes_CorrectPassword_ReturnsTrue()
+    {
+        var hashedBytes = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedBytes, this.passwordBytes, this.saltBytes, Iterations);
+
+        result.Should().BeTrue();
+    }
+    [TestMethod]
+    public async Task VerifyString_CorrectPassword_ReturnsTrue()
+    {
+        var hashedString = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedString, this.passwordString, this.saltString, Iterations);
+
+        result.Should().BeTrue();
+    }
+    [TestMethod]
+    public async Task VerifyBytes_IncorrectPassword_ReturnsFalse()
+    {
+        var hashedBytes = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedBytes, this.incorrectPasswordBytes, this.saltBytes, Iterations);
+
+        result.Should().BeFalse();
+    }
+    [TestMethod]
+    public async Task VerifyString_IncorrectPassword_ReturnsFalse()
+    {
+        var hashedString = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedString, this.incorrectPasswordString, this.saltString, Iterations);
+
+        result.Should().BeFalse();
+    }
+    [TestMethod]
+    public async Task VerifyBytes_IncorrectSalt_ReturnsFalse()
+    {
+        var hashedBytes = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedBytes, this.passwordBytes, this.incorrectSaltBytes, Iterations);
+
+        result.Should().BeFalse();
+    }
+    [TestMethod]
+    public async Task VerifyString_IncorrectSalt_ReturnsFalse()
+    {
+        var hashedString = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedString, this.passwordString, this.incorrectSaltString, Iterations);
+
+        result.Should().BeFalse();
+    }
+    [TestMethod]
+    public async Task VerifyBytes_IncorrectIterations_ReturnsFalse()
+    {
+        var hashedBytes = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedBytes, this.passwordBytes, this.saltBytes, Iterations + 1);
+
+        result.Should().BeFalse();
+    }
+    [TestMethod]
+    public async Task VerifyString_IncorrectIterations_ReturnsFalse()
+    {
+        var hashedString = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedString, this.passwordString, this.saltString, Iterations + 1);
+
+        result.Should().BeFalse();
+    }
+}

SystemExtensions.NetStandard.Security.Tests/SecureStringTests.cs

@@ -0,0 +1,121 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Security.Encryption;
+
+namespace SystemExtensions.NetStandard.Security.Tests;
+
+[TestClass]
+public class SecureStringTests
+{
+    [TestMethod]
+    public void SecureString_NewSecureString_ReturnsValue()
+    {
+        var str = new SecureString("hello");
+
+        str.Value.Should().Be("hello");
+    }
+
+    [TestMethod]
+    public void SecureStringEmpty_AreEqual()
+    {
+        var str = SecureString.Empty;
+        str.Should().Be(SecureString.Empty);
+    }
+
+    [TestMethod]
+    public void SecureStringEmpty_Equals_StringEmpty()
+    {
+        var ss = SecureString.Empty;
+        var s = string.Empty;
+
+        ss.Should().Be(s);
+    }
+
+    [TestMethod]
+    public void SecureString_Equals_OtherSecureString()
+    {
+        var ss1 = new SecureString("Hello");
+        var ss2 = new SecureString("Hello");
+
+        ss1.Equals(ss2).Should().BeTrue();
+    }
+
+    [TestMethod]
+    [DataRow("hello", "hello", true)]
+    [DataRow("hello", "henlo", false)]
+    public void SecureString_EqualOperator_OtherSecureString(string str1, string str2, bool isEqual)
+    {
+        var ss1 = new SecureString(str1);
+        var ss2 = new SecureString(str2);
+
+        (ss1 == ss2).Should().Be(isEqual);
+    }
+
+    [TestMethod]
+    [DataRow("hello", "hello", false)]
+    [DataRow("hello", "henlo", true)]
+    public void SecureString_DifferentOperator_OtherSecureString(string str1, string str2, bool isDifferent)
+    {
+        var ss1 = new SecureString(str1);
+        var ss2 = new SecureString(str2);
+
+        (ss1 != ss2).Should().Be(isDifferent);
+    }
+
+    [TestMethod]
+    [DataRow("hello", "hello", true)]
+    [DataRow("hello", "henlo", false)]
+    public void SecureString_EqualOperator_String(string str1, string str2, bool isEqual)
+    {
+        var ss1 = new SecureString(str1);
+
+        (ss1 == str2).Should().Be(isEqual);
+    }
+
+    [TestMethod]
+    [DataRow("hello", "hello", false)]
+    [DataRow("hello", "henlo", true)]
+    public void SecureString_DifferentOperator_String(string str1, string str2, bool isDifferent)
+    {
+        var ss1 = new SecureString(str1);
+
+        (ss1 != str2).Should().Be(isDifferent);
+    }
+
+    [TestMethod]
+    public void SecureString_PlusOperator_SecureString()
+    {
+        var ss1 = new SecureString("Hello ");
+        var ss2 = new SecureString("World");
+
+        (ss1 + ss2).Should().Be("Hello World");
+    }
+
+    [TestMethod]
+    public void SecureString_PlusOperator_String()
+    {
+        var ss1 = new SecureString("Hello ");
+        var ss2 = "World";
+
+        (ss1 + ss2).Should().Be("Hello World");
+    }
+
+    [TestMethod]
+    public void SecureString_PlusOperator_Char()
+    {
+        var ss1 = new SecureString("Hello ");
+        var c = 'W';
+
+        (ss1 + c).Should().Be("Hello W");
+    }
+
+    [TestMethod]
+    public void SecureString_WithOptionalEntropy_Matches()
+    {
+        SecureString.AddOptionalEntropy(new byte[] { 10, 20, 25, 34, 56, 12, 10, 81, 200, 155, 123, 144, 123, 192, 122, 1 });
+        var ss1 = new SecureString("Hello");
+        var ss2 = new SecureString("Hello");
+
+        ss1.Should().Be(ss2);
+    }
+}

SystemExtensions.NetStandard.Security.Tests/Sha256HashingServiceTests.cs

@@ -0,0 +1,47 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using System.IO;
+using System.Security.Hashing;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SystemExtensions.NetStandard.Security.Tests;
+
+[TestClass]
+public sealed class Sha256HashingServiceTests
+{
+    private readonly IHashingService hashingService = new Sha256HashingService();
+    private string toHashtString;
+    private byte[] toHashtBytes;
+    private Stream toHashStream;
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.toHashtBytes = Encoding.UTF8.GetBytes("toEncrypt");
+        this.toHashtString = Convert.ToBase64String(this.toHashtBytes);
+        this.toHashStream = new MemoryStream(this.toHashtBytes);
+    }
+
+    [TestMethod]
+    public async Task HashString()
+    {
+        var hash = await this.hashingService.Hash(this.toHashtString).ConfigureAwait(false);
+        hash.Should().BeOfType<string>();
+    }
+
+    [TestMethod]
+    public async Task HashBytes()
+    {
+        var hash = await this.hashingService.Hash(this.toHashtBytes).ConfigureAwait(false);
+        hash.Should().BeOfType<byte[]>();
+    }
+
+    [TestMethod]
+    public async Task HashStream()
+    {
+        var hash = await this.hashingService.Hash(this.toHashStream).ConfigureAwait(false);
+        hash.Should().BeAssignableTo<Stream>();
+    }
+}

SystemExtensions.NetStandard.Security.Tests/SystemExtensions.NetStandard.Security.Tests.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.5.2" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.5.2" />
+    <PackageReference Include="coverlet.collector" Version="6.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SystemExtensions.NetStandard.Security\SystemExtensions.NetStandard.Security.csproj" />
+  </ItemGroup>
+
+</Project>

SystemExtensions.NetStandard.Security/Encryption/AesEncrypter.cs

@@ -0,0 +1,226 @@
+using System.IO;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Threading.Tasks;
+using System.Security.Utilities;
+
+namespace System.Security.Encryption;
+
+public sealed class AesEncrypter : ISymmetricEncrypter, IDisposable
+{
+    private readonly Aes aes;
+
+    public AesEncrypter()
+    {
+        this.aes = Aes.Create();
+    }
+
+    public AesEncrypter(Aes aes)
+    {
+        this.aes = aes;
+    }
+
+    public async Task<string> Decrypt(string key, string iv, string value)
+    {
+        using var valueStream = BytesToStream(StringToBytes(value));
+        using var decryptedStream = await this.DecryptInternal(StringToBytes(key), StringToBytes(iv), valueStream).ConfigureAwait(false);
+        return StreamToString(decryptedStream);
+    }
+
+    public async Task<string> Decrypt(byte[] key, byte[] iv, string value)
+    {
+        using var valueStream = BytesToStream(StringToBytes(value));
+        using var decryptedStream = await this.DecryptInternal(key, iv, valueStream).ConfigureAwait(false);
+        return StreamToString(decryptedStream);
+    }
+
+    public async Task<byte[]> Decrypt(string key, string iv, byte[] value)
+    {
+        using var valueStream = BytesToStream(value);
+        using var decryptedStream = await this.DecryptInternal(StringToBytes(key), StringToBytes(iv), valueStream).ConfigureAwait(false);
+        return StreamToBytes(decryptedStream);
+    }
+
+    public async Task<byte[]> Decrypt(byte[] key, byte[] iv, byte[] value)
+    {
+        using var valueStream = BytesToStream(value);
+        using var decryptedStream = await this.DecryptInternal(key, iv, valueStream).ConfigureAwait(false);
+        return StreamToBytes(decryptedStream);
+    }
+
+    public async Task<Stream> Decrypt(string key, string iv, Stream value)
+    {
+        return await this.DecryptInternal(StringToBytes(key), StringToBytes(iv), value).ConfigureAwait(false);
+    }
+
+    public async Task<Stream> Decrypt(byte[] key, byte[] iv, Stream value)
+    {
+        return await this.DecryptInternal(key, iv, value).ConfigureAwait(false);
+    }
+
+    public async Task<string> Encrypt(string key, string iv, string value)
+    {
+        using var valueStream = BytesToStream(StringToBytes(value));
+        using var encryptedStream = await this.EncryptInternal(StringToBytes(key), StringToBytes(iv), valueStream).ConfigureAwait(false);
+        return StreamToString(encryptedStream);
+    }
+
+    public async Task<string> Encrypt(byte[] key, byte[] iv, string value)
+    {
+        using var valueStream = BytesToStream(StringToBytes(value));
+        using var encryptedStream = await this.EncryptInternal(key, iv, valueStream).ConfigureAwait(false);
+        return StreamToString(encryptedStream);
+    }
+
+    public async Task<byte[]> Encrypt(string key, string iv, byte[] value)
+    {
+        using var valueStream = BytesToStream(value);
+        using var encryptedStream = await this.EncryptInternal(StringToBytes(key), StringToBytes(iv), valueStream).ConfigureAwait(false);
+        return StreamToBytes(encryptedStream);
+    }
+
+    public async Task<byte[]> Encrypt(byte[] key, byte[] iv, byte[] value)
+    {
+        using var valueStream = BytesToStream(value);
+        using var encryptedStream = await this.EncryptInternal(key, iv, valueStream).ConfigureAwait(false);
+        return StreamToBytes(encryptedStream);
+    }
+
+    public async Task<Stream> Encrypt(string key, string iv, Stream value)
+    {
+        return value is null
+            ? throw new ArgumentNullException(nameof(value))
+            : await this.EncryptInternal(StringToBytes(key), StringToBytes(iv), value).ConfigureAwait(false);
+    }
+
+    public async Task<Stream> Encrypt(byte[] key, byte[] iv, Stream value)
+    {
+        return value is null
+            ? throw new ArgumentNullException(nameof(value))
+            : await this.EncryptInternal(key, iv, value).ConfigureAwait(false);
+    }
+
+    public Stream GetEncryptionStream(string key, string iv, Stream outStream)
+    {
+        return this.GetEncryptionStreamInternal(StringToBytes(key), StringToBytes(iv), outStream);
+    }
+
+    public Stream GetEncryptionStream(byte[] key, byte[] iv, Stream outStream)
+    {
+        return this.GetEncryptionStreamInternal(key, iv, outStream);
+    }
+
+    public Stream GetDecryptionStream(string key, string iv, Stream inStream)
+    {
+        return this.GetDecryptionStreamInternal(StringToBytes(key), StringToBytes(iv), inStream);
+    }
+
+    public Stream GetDecryptionStream(byte[] key, byte[] iv, Stream inStream)
+    {
+        return this.GetDecryptionStreamInternal(key, iv, inStream);
+    }
+
+    private async Task<Stream> EncryptInternal(byte[] key, byte[] iv, Stream toEncryptStream)
+    {
+        if (key.Length < 32)
+        {
+            throw new ArgumentException($"{nameof(key)} must be at least 32 bytes");
+        }
+
+        if (iv.Length < 16)
+        {
+            throw new ArgumentException($"{nameof(iv)} must be at least 16 bytes");
+        }
+
+        key = key.Take(32).ToArray();
+        iv = iv.Take(16).ToArray();
+
+
+        var encryptedMemoryStream = new MemoryStream();
+        using var cryptoStream = this.GetEncryptionStreamInternal(key, iv, encryptedMemoryStream);
+        await toEncryptStream.CopyToAsync(cryptoStream).ConfigureAwait(false);
+        if (!cryptoStream.HasFlushedFinalBlock)
+        {
+            cryptoStream.FlushFinalBlock();
+        }
+
+        encryptedMemoryStream.Position = 0;
+        return encryptedMemoryStream;
+    }
+
+    private async Task<Stream> DecryptInternal(byte[] key, byte[] iv, Stream toDecryptStream)
+    {
+        if (key.Length < 32)
+        {
+            throw new ArgumentException($"{nameof(key)} must be at least 32 bytes");
+        }
+
+        if (iv.Length < 16)
+        {
+            throw new ArgumentException($"{nameof(iv)} must be at least 16 bytes");
+        }
+
+        key = key.Take(32).ToArray();
+        iv = iv.Take(16).ToArray();
+
+
+        var decryptedMemoryStream = new MemoryStream();
+        using var cryptoStream = this.GetDecryptionStreamInternal(key, iv, toDecryptStream);
+        await cryptoStream.CopyToAsync(decryptedMemoryStream).ConfigureAwait(false);
+        if (!cryptoStream.HasFlushedFinalBlock)
+        {
+            cryptoStream.FlushFinalBlock();
+        }
+
+        decryptedMemoryStream.Position = 0;
+        return decryptedMemoryStream;
+    }
+
+    private CryptoStream GetEncryptionStreamInternal(byte[] key, byte[] iv, Stream encryptedStream)
+    {
+        var crypto = this.aes.CreateEncryptor(key, iv);
+        var cryptoStream = new NotClosingCryptoStream(encryptedStream, crypto, CryptoStreamMode.Write);
+        return cryptoStream;
+    }
+
+    private CryptoStream GetDecryptionStreamInternal(byte[] key, byte[] iv, Stream encryptedStream)
+    {
+        var crypto = this.aes.CreateDecryptor(key, iv);
+        var cryptoStream = new NotClosingCryptoStream(encryptedStream, crypto, CryptoStreamMode.Read);
+        return cryptoStream;
+    }
+
+    private static byte[] StreamToBytes(Stream value)
+    {
+        value.Position = 0;
+        var buffer = new byte[1024];
+        using var ms = new MemoryStream();
+        var read = -1;
+        do
+        {
+            read = value.Read(buffer, 0, buffer.Length);
+            ms.Write(buffer, 0, read);
+        } while (read > 0);
+        return ms.ToArray();
+    }
+
+    private static string StreamToString(Stream value)
+    {
+        return Convert.ToBase64String(StreamToBytes(value));
+    }
+
+    private static byte[] StringToBytes(string value)
+    {
+        return Convert.FromBase64String(value);
+    }
+
+    private static Stream BytesToStream(byte[] value)
+    {
+        return new MemoryStream(value);
+    }
+
+    public void Dispose()
+    {
+        this.aes.Dispose();
+    }
+}

SystemExtensions.NetStandard.Security/Encryption/ISymmetricEncrypter.cs

@@ -0,0 +1,24 @@
+using System.IO;
+using System.Threading.Tasks;
+
+namespace System.Security.Encryption;
+
+public interface ISymmetricEncrypter
+{
+    Stream GetEncryptionStream(string key, string iv, Stream outStream);
+    Stream GetEncryptionStream(byte[] key, byte[] iv, Stream outStream);
+    Stream GetDecryptionStream(string key, string iv, Stream inStream);
+    Stream GetDecryptionStream(byte[] key, byte[] iv, Stream inStream);
+    Task<string> Encrypt(string key, string iv, string value);
+    Task<string> Encrypt(byte[] key, byte[] iv, string value);
+    Task<byte[]> Encrypt(string key, string iv, byte[] value);
+    Task<byte[]> Encrypt(byte[] key, byte[] iv, byte[] value);
+    Task<Stream> Encrypt(string key, string iv, Stream value);
+    Task<Stream> Encrypt(byte[] key, byte[] iv, Stream value);
+    Task<string> Decrypt(string key, string iv, string value);
+    Task<string> Decrypt(byte[] key, byte[] iv, string value);
+    Task<byte[]> Decrypt(string key, string iv, byte[] value);
+    Task<byte[]> Decrypt(byte[] key, byte[] iv, byte[] value);
+    Task<Stream> Decrypt(string key, string iv, Stream value);
+    Task<Stream> Decrypt(byte[] key, byte[] iv, Stream value);
+}

SystemExtensions.NetStandard.Security/Encryption/SecureString.cs

@@ -0,0 +1,108 @@
+using System.Security.Cryptography;
+using System.Text;
+
+namespace System.Security.Encryption;
+
+public sealed class SecureString
+{
+    private static byte[] optionalEntropy;
+    private byte[] encryptedValue;
+
+    public string Value {
+        get => this.encryptedValue is not null ? Encoding.UTF8.GetString(ProtectedData.Unprotect(this.encryptedValue, optionalEntropy, DataProtectionScope.CurrentUser)) : string.Empty;
+        private set => this.encryptedValue = value is not null
+            ? ProtectedData.Protect(Encoding.UTF8.GetBytes(value), optionalEntropy, DataProtectionScope.CurrentUser)
+            : null;
+    }
+
+    public SecureString(string value)
+    {
+        this.Value = value;
+    }
+
+    public override bool Equals(object obj)
+    {
+        if (obj is string)
+        {
+            return this == (obj as string);
+        }
+        else if (obj is SecureString)
+        {
+            return this == (obj as SecureString);
+        }
+        else
+        {
+            return base.Equals(obj);
+        }
+    }
+    public override int GetHashCode()
+    {
+        return this.Value.GetHashCode();
+    }
+    public override string ToString()
+    {
+        return this.Value;
+    }
+
+    public static readonly SecureString Empty = new(null);
+    public static implicit operator string(SecureString ss) => ss is null ? string.Empty : ss.Value;
+    public static implicit operator SecureString(string s) => new(s);
+    public static SecureString operator +(SecureString ss1, SecureString ss2)
+    {
+        if (ss1 is null)
+        {
+            throw new ArgumentNullException(nameof(ss1));
+        }
+
+        if (ss2 is null)
+        {
+            throw new ArgumentNullException(nameof(ss2));
+        }
+
+        return new SecureString(ss1.Value + ss2.Value);
+    }
+    public static SecureString operator +(SecureString ss1, string s2)
+    {
+        if (ss1 is null)
+        {
+            throw new ArgumentNullException(nameof(ss1));
+        }
+
+        return new SecureString(ss1.Value + s2);
+    }
+    public static SecureString operator +(SecureString ss1, char c)
+    {
+        if (ss1 is null)
+        {
+            throw new ArgumentNullException(nameof(ss1));
+        }
+
+        return new SecureString(ss1.Value + c);
+    }
+    public static bool operator ==(SecureString ss1, SecureString ss2)
+    {
+        if (ss1 is null && ss2 is null)
+        {
+            return true;
+        }
+
+        return ss1?.Value == ss2?.Value;
+    }
+    public static bool operator !=(SecureString ss1, SecureString ss2)
+    {
+        return !(ss1 == ss2);
+    }
+    public static bool operator ==(SecureString ss1, string s2)
+    {
+        return ss1?.Value == s2;
+    }
+    public static bool operator !=(SecureString ss1, string s2)
+    {
+        return !(ss1?.Value == s2);
+    }
+
+    public static void AddOptionalEntropy(byte[] entropy)
+    {
+        optionalEntropy = entropy;
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/BaseHMACService.cs

@@ -0,0 +1,64 @@
+using System.IO;
+using System.Security.Cryptography;
+using System.Threading.Tasks;
+
+namespace System.Security.Hashing;
+public abstract class BaseHMACService<T> : IHMACService
+    where T : HMAC
+{
+    protected abstract T GetHashAlgorithm(byte[] key);
+
+    public async Task<string> Hash(string key, string raw)
+    {
+        using var rawStream = BytesToStream(StringToBytes(raw));
+        var keyBytes = StringToBytes(key);
+        using var hashedStream = await this.HashInternal(keyBytes, rawStream).ConfigureAwait(false);
+        return StreamToString(hashedStream);
+    }
+    public async Task<byte[]> Hash(byte[] key, byte[] raw)
+    {
+        using var rawStream = BytesToStream(raw);
+        using var hashedStream = await this.HashInternal(key, rawStream).ConfigureAwait(false);
+        return StreamToBytes(hashedStream);
+    }
+    public async Task<Stream> Hash(byte[] key, Stream raw)
+    {
+        return await this.HashInternal(key, raw);
+    }
+
+    private static byte[] StreamToBytes(Stream value)
+    {
+        value.Position = 0;
+        var buffer = new byte[1024];
+        using var ms = new MemoryStream();
+        var read = -1;
+        do
+        {
+            read = value.Read(buffer, 0, buffer.Length);
+            ms.Write(buffer, 0, read);
+        } while (read > 0);
+        return ms.ToArray();
+    }
+    private static string StreamToString(Stream value)
+    {
+        return Convert.ToBase64String(StreamToBytes(value));
+    }
+    private static byte[] StringToBytes(string value)
+    {
+        return Convert.FromBase64String(value);
+    }
+    private static Stream BytesToStream(byte[] value)
+    {
+        return new MemoryStream(value);
+    }
+    private async Task<Stream> HashInternal(byte[] key, Stream raw)
+    {
+        if (raw is null)
+        {
+            throw new ArgumentNullException(nameof(raw));
+        }
+
+        using var algo = this.GetHashAlgorithm(key);
+        return await Task.Run(() => new MemoryStream(algo.ComputeHash(raw)));
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/BaseHashingService.cs

@@ -0,0 +1,63 @@
+using System.IO;
+using System.Security.Cryptography;
+using System.Threading.Tasks;
+
+namespace System.Security.Hashing;
+public abstract class BaseHashingService<T>
+    where T : HashAlgorithm
+{
+    protected abstract T GetHashAlgorithm();
+
+    public async Task<string> Hash(string raw)
+    {
+        using var rawStream = BytesToStream(StringToBytes(raw));
+        using var hashedStream = await this.HashInternal(rawStream).ConfigureAwait(false);
+        return StreamToString(hashedStream);
+    }
+    public async Task<byte[]> Hash(byte[] raw)
+    {
+        using var rawStream = BytesToStream(raw);
+        using var hashedStream = await this.HashInternal(rawStream).ConfigureAwait(false);
+        return StreamToBytes(hashedStream);
+    }
+    public async Task<Stream> Hash(Stream raw)
+    {
+        return await this.HashInternal(raw);
+    }
+
+    private static byte[] StreamToBytes(Stream value)
+    {
+        value.Position = 0;
+        var buffer = new byte[1024];
+        using var ms = new MemoryStream();
+        var read = -1;
+        do
+        {
+            read = value.Read(buffer, 0, buffer.Length);
+            ms.Write(buffer, 0, read);
+        } while (read > 0);
+        return ms.ToArray();
+    }
+    private static string StreamToString(Stream value)
+    {
+        return Convert.ToBase64String(StreamToBytes(value));
+    }
+    private static byte[] StringToBytes(string value)
+    {
+        return Convert.FromBase64String(value);
+    }
+    private static Stream BytesToStream(byte[] value)
+    {
+        return new MemoryStream(value);
+    }
+    private async Task<Stream> HashInternal(Stream raw)
+    {
+        if (raw is null)
+        {
+            throw new ArgumentNullException(nameof(raw));
+        }
+
+        using var algo = this.GetHashAlgorithm();
+        return await Task.Run(() => new MemoryStream(algo.ComputeHash(raw)));
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/HMACMD5Service.cs

@@ -0,0 +1,10 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Hashing;
+public sealed class HMACMD5Service : BaseHMACService<HMACMD5>, IHMACMD5Service
+{
+    protected override HMACMD5 GetHashAlgorithm(byte[] key)
+    {
+        return new HMACMD5(key);
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/HMACSha1Service.cs

@@ -0,0 +1,10 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Hashing;
+public sealed class HMACSha1Service : BaseHMACService<HMACSHA1>, IHMACSha1Service
+{
+    protected override HMACSHA1 GetHashAlgorithm(byte[] key)
+    {
+        return new HMACSHA1(key);
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/HMACSha256Service.cs

@@ -0,0 +1,10 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Hashing;
+public sealed class HMACSha256Service : BaseHMACService<HMACSHA256>, IHMACSha256Service
+{
+    protected override HMACSHA256 GetHashAlgorithm(byte[] key)
+    {
+        return new HMACSHA256(key);
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/HMACSha384Service.cs

@@ -0,0 +1,10 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Hashing;
+public sealed class HMACSha384Service : BaseHMACService<HMACSHA384>, IHMACSha384Service
+{
+    protected override HMACSHA384 GetHashAlgorithm(byte[] key)
+    {
+        return new HMACSHA384(key);
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/HMACSha512Service.cs

@@ -0,0 +1,10 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Hashing;
+public sealed class HMACSha512Service : BaseHMACService<HMACSHA512>, IHMACSha512Service
+{
+    protected override HMACSHA512 GetHashAlgorithm(byte[] key)
+    {
+        return new HMACSHA512(key);
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/IHMACMD5Service.cs

@@ -0,0 +1,4 @@
+namespace System.Security.Hashing;
+public interface IHMACMD5Service : IHMACService
+{
+}

SystemExtensions.NetStandard.Security/Hashing/IHMACService.cs

@@ -0,0 +1,10 @@
+using System.IO;
+using System.Threading.Tasks;
+
+namespace System.Security.Hashing;
+public interface IHMACService
+{
+    Task<string> Hash(string key, string raw);
+    Task<byte[]> Hash(byte[] key, byte[] raw);
+    Task<Stream> Hash(byte[] key, Stream raw);
+}

SystemExtensions.NetStandard.Security/Hashing/IHMACSha1Service.cs

@@ -0,0 +1,4 @@
+namespace System.Security.Hashing;
+public interface IHMACSha1Service : IHMACService
+{
+}

SystemExtensions.NetStandard.Security/Hashing/IHMACSha256Service.cs

@@ -0,0 +1,4 @@
+namespace System.Security.Hashing;
+public interface IHMACSha256Service : IHMACService
+{
+}

SystemExtensions.NetStandard.Security/Hashing/IHMACSha384Service.cs

@@ -0,0 +1,4 @@
+namespace System.Security.Hashing;
+public interface IHMACSha384Service : IHMACService
+{
+}

SystemExtensions.NetStandard.Security/Hashing/IHMACSha512Service.cs

@@ -0,0 +1,4 @@
+namespace System.Security.Hashing;
+public interface IHMACSha512Service : IHMACService
+{
+}

SystemExtensions.NetStandard.Security/Hashing/IHashingService.cs

@@ -0,0 +1,11 @@
+using System.IO;
+using System.Threading.Tasks;
+
+namespace System.Security.Hashing;
+
+public interface IHashingService
+{
+    Task<string> Hash(string raw);
+    Task<byte[]> Hash(byte[] raw);
+    Task<Stream> Hash(Stream raw);
+}

SystemExtensions.NetStandard.Security/Hashing/IMD5HashingService.cs

@@ -0,0 +1,4 @@
+namespace System.Security.Hashing;
+public interface IMD5HashingService : IHashingService
+{
+}

SystemExtensions.NetStandard.Security/Hashing/IPasswordHashingService.cs

@@ -0,0 +1,46 @@
+using System.Threading.Tasks;
+
+namespace System.Security.Hashing;
+
+public interface IPasswordHashingService
+{
+    /// <summary>
+    /// Hash provided raw password and return the hashed value.
+    /// </summary>
+    /// <param name="raw">Base64 encoded password.</param>
+    /// <param name="salt">Base64 encoded salt to be used for hashing.</param>
+    /// <param name="length">Length of the resulting hash.</param>
+    /// <param name="iterations">Number of hashing iterations to be performed.</param>
+    /// <remarks>
+    /// The length of the hash will vary due to the base64 encoding of the resulting hash.
+    /// </remarks>
+    /// <returns>Base64 encoded hashed password.</returns>
+    Task<string> Hash(string raw, string salt, int length, int iterations);
+    /// <summary>
+    /// Hash provided raw password and return the hashed value.
+    /// </summary>
+    /// <param name="raw">Password to be hashed.</param>
+    /// <param name="salt">Salt to be used for hashing.</param>
+    /// <param name="length">Length of the resulting hash.</param>
+    /// <param name="iterations">Number of hashing iterations to be performed.</param>
+    /// <returns>Hashed password.</returns>
+    Task<byte[]> Hash(byte[] raw, byte[] salt, int length, int iterations);
+    /// <summary>
+    /// Verify provided password against a hashed password.
+    /// </summary>
+    /// <param name="hash">Base64 encoding of the previously hashed password.</param>
+    /// <param name="password">Base64 encoding of the password to be verified.</param>
+    /// <param name="salt">Salt used to hash the previous password.</param>
+    /// <param name="iterations">Number of iterations used to hash the previous password.</param>
+    /// <returns>Returns true if password matches the previously hashed password. Otherwise returns false.</returns>
+    Task<bool> VerifyPassword(string hash, string password, string salt, int iterations);
+    /// <summary>
+    /// Verify provided password against a hashed password.
+    /// </summary>
+    /// <param name="hash">Previously hashed password.</param>
+    /// <param name="password">Password to be verified.</param>
+    /// <param name="salt">Salt used to hash the previous password.</param>
+    /// <param name="iterations">Number of iterations used to hash the previous password.</param>
+    /// <returns>Returns true if password matches the previously hashed password. Otherwise returns false.</returns>
+    Task<bool> VerifyPassword(byte[] hash, byte[] password, byte[] salt, int iterations);
+}

SystemExtensions.NetStandard.Security/Hashing/ISha1HashingService.cs

@@ -0,0 +1,4 @@
+namespace System.Security.Hashing;
+public interface ISha1HashingService : IHashingService
+{
+}

SystemExtensions.NetStandard.Security/Hashing/ISha256HashingService.cs

@@ -0,0 +1,4 @@
+namespace System.Security.Hashing;
+public interface ISha256HashingService : IHashingService
+{
+}

SystemExtensions.NetStandard.Security/Hashing/ISha384HashingService.cs

@@ -0,0 +1,4 @@
+namespace System.Security.Hashing;
+public interface ISha384HashingService : IHashingService
+{
+}

SystemExtensions.NetStandard.Security/Hashing/ISha512HashingService.cs

@@ -0,0 +1,4 @@
+namespace System.Security.Hashing;
+public interface ISha512HashingService : IHashingService
+{
+}

SystemExtensions.NetStandard.Security/Hashing/MD5HashingService.cs

@@ -0,0 +1,10 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Hashing;
+public sealed class MD5HashingService : BaseHashingService<MD5>, IMD5HashingService
+{
+    protected override MD5 GetHashAlgorithm()
+    {
+        return MD5.Create();
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/Rfc2898DeriveBytesPasswordHashingService.cs

@@ -0,0 +1,100 @@
+using System.Security.Cryptography;
+using System.Threading.Tasks;
+
+namespace System.Security.Hashing;
+
+public sealed class Rfc2898DeriveBytesPasswordHashingService : IPasswordHashingService
+{
+    private const int MinimumIterations = 10000;
+    private const int MinimumHashLength = 32;
+
+    public Rfc2898DeriveBytesPasswordHashingService()
+    {
+    }
+
+    public async Task<string> Hash(string raw, string salt, int length, int iterations)
+    {
+        this.ValidateHashArguments(raw, salt, length, iterations);
+
+        var rawBytes = Convert.FromBase64String(raw);
+        var saltBytes = Convert.FromBase64String(salt);
+        var hashBytes = await this.HashInternal(rawBytes, saltBytes, length, iterations);
+        return Convert.ToBase64String(hashBytes);
+    }
+    public Task<byte[]> Hash(byte[] raw, byte[] salt, int length, int iterations)
+    {
+        this.ValidateHashArguments(raw, salt, length, iterations);
+
+        return this.HashInternal(raw, salt, length, iterations);
+    }
+    public Task<bool> VerifyPassword(string hash, string password, string salt, int iterations)
+    {
+        this.ValidateVerifyArguments(hash, password, salt, iterations);
+        var hashBytes = Convert.FromBase64String(hash);
+        var saltBytes = Convert.FromBase64String(salt);
+        var passwordBytes = Convert.FromBase64String(password);
+        return this.VerifyPasswordInternal(hashBytes, passwordBytes, saltBytes, iterations);
+    }
+    public Task<bool> VerifyPassword(byte[] hash, byte[] password, byte[] salt, int iterations)
+    {
+        this.ValidateVerifyArguments(hash, password, salt, iterations);
+        return this.VerifyPasswordInternal(hash, password, salt, iterations);
+    }
+
+    private void ValidateHashArguments(object raw, object salt, int length, int iterations)
+    {
+        _ = raw ?? throw new ArgumentNullException(nameof(raw));
+        _ = salt ?? throw new ArgumentNullException(nameof(salt));
+
+        if (iterations < MinimumIterations)
+        {
+            throw new InvalidOperationException($"Unable to perform secure hash. Iteration count must be over {MinimumIterations}");
+        }
+
+        if (length < MinimumHashLength)
+        {
+            throw new InvalidOperationException($"Unable to perform secure hash. Hash length must be over {MinimumHashLength}");
+        }
+    }
+    private void ValidateVerifyArguments(object hash, object password, object salt, int iterations)
+    {
+        _ = hash ?? throw new ArgumentNullException(nameof(hash));
+        _ = salt ?? throw new ArgumentNullException(nameof(salt));
+        _ = password ?? throw new ArgumentNullException(nameof(password));
+
+        if (iterations < MinimumIterations)
+        {
+            throw new InvalidOperationException($"Unable to verify hash. Iteration count must be over {MinimumIterations}");
+        }
+    }
+    private Task<byte[]> HashInternal(byte[] raw, byte[] salt, int length, int iterations)
+    {
+        using var pbkdf2 = new Rfc2898DeriveBytes(raw, salt, iterations);
+        var hash = pbkdf2.GetBytes(length);
+        return Task.FromResult(hash);
+    }
+    private Task<bool> VerifyPasswordInternal(byte[] hash, byte[] password, byte[] salt, int iterations)
+    {
+        using var pbkdf2 = new Rfc2898DeriveBytes(password, salt, iterations);
+        var hashToVerify = pbkdf2.GetBytes(hash.Length);
+        var lengthToVerify = Math.Max(hash.Length, hashToVerify.Length);
+        var match = true;
+        if (lengthToVerify <= 0)
+        {
+            return Task.FromResult(false);
+        }
+
+        for(var i = 0; i < lengthToVerify; i++)
+        {
+            if (i < hash.Length && i < hashToVerify.Length)
+            {
+                if (hashToVerify[i].Equals(hash[i]) is false)
+                {
+                    match = false;
+                }
+            }
+        }
+
+        return Task.FromResult(match && hash.Length.Equals(hashToVerify.Length));
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/Sha1HashingService.cs

@@ -0,0 +1,7 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Hashing;
+public sealed class Sha1HashingService : BaseHashingService<SHA1>, ISha1HashingService
+{
+    protected override SHA1 GetHashAlgorithm() => SHA1.Create();
+}

SystemExtensions.NetStandard.Security/Hashing/Sha256HashingService.cs

@@ -0,0 +1,8 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Hashing;
+
+public sealed class Sha256HashingService : BaseHashingService<SHA256>, ISha256HashingService
+{
+    protected override SHA256 GetHashAlgorithm() => SHA256.Create();
+}

SystemExtensions.NetStandard.Security/Hashing/Sha384HashingService.cs

@@ -0,0 +1,10 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Hashing;
+public sealed class Sha384HashingService : BaseHashingService<SHA384>, ISha384HashingService
+{
+    protected override SHA384 GetHashAlgorithm()
+    {
+        return SHA384.Create();
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/Sha512HashingService.cs

@@ -0,0 +1,7 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Hashing;
+public sealed class Sha512HashingService : BaseHashingService<SHA512>, ISha512HashingService
+{
+    protected override SHA512 GetHashAlgorithm() => SHA512.Create();
+}

SystemExtensions.NetStandard.Security/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Macocian Alexandru Victor
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

SystemExtensions.NetStandard.Security/Rng/CryptoRngProvider.cs

@@ -0,0 +1,58 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Rng;
+
+public sealed class CryptoRngProvider : ICryptoRngProvider, IDisposable
+{
+    private readonly RNGCryptoServiceProvider rngProvider;
+    private bool disposedValue;
+
+    public CryptoRngProvider()
+    {
+        this.rngProvider = new RNGCryptoServiceProvider();
+    }
+    public CryptoRngProvider(CspParameters cspParams)
+    {
+        this.rngProvider = new RNGCryptoServiceProvider(cspParams);
+    }
+
+
+    public void GetBytes(byte[] data)
+    {
+        this.rngProvider.GetBytes(data);
+    }
+    public void GetNonZeroBytes(byte[] data)
+    {
+        this.rngProvider.GetNonZeroBytes(data);
+    }
+    public byte[] GetBytes(int byteCount)
+    {
+        var bytes = new byte[byteCount];
+        this.GetBytes(bytes);
+        return bytes;
+    }
+    public byte[] GetNonZeroBytes(int byteCount)
+    {
+        var bytes = new byte[byteCount];
+        this.GetNonZeroBytes(bytes);
+        return bytes;
+    }
+
+    private void Dispose(bool disposing)
+    {
+        if (!this.disposedValue)
+        {
+            if (disposing)
+            {
+                this.rngProvider.Dispose();
+            }
+
+            this.disposedValue = true;
+        }
+    }
+    public void Dispose()
+    {
+        this.Dispose(disposing: true);
+        GC.SuppressFinalize(this);
+    }
+}

SystemExtensions.NetStandard.Security/Rng/ICryptoRngProvider.cs

@@ -0,0 +1,27 @@
+namespace System.Security.Rng;
+
+public interface ICryptoRngProvider
+{
+    /// <summary>
+    /// Populate provided array of bytes with cryptographically secure random bytes.
+    /// </summary>
+    /// <param name="data">Array of bytes to be populated.</param>
+    public void GetBytes(byte[] data);
+    /// <summary>
+    /// Return an array of cryptographically secure random bytes.
+    /// </summary>
+    /// <param name="byteCount">Length of the returned array.</param>
+    /// <returns>Array containing cryptographically secure random values.</returns>
+    public byte[] GetBytes(int byteCount);
+    /// <summary>
+    /// Populate provided array of bytes with cryptographically secure random non-zero bytes.
+    /// </summary>
+    /// <param name="data">Array of bytes to be populated.</param>
+    public void GetNonZeroBytes(byte[] data);
+    /// <summary>
+    /// Return an array of cryptographically secure random non-zero bytes.
+    /// </summary>
+    /// <param name="byteCount">Length of the returned array.</param>
+    /// <returns>Array containing cryptographically secure random non-zero values.</returns>
+    public byte[] GetNonZeroBytes(int byteCount);
+}

SystemExtensions.NetStandard.Security/SystemExtensions.NetStandard.Security.csproj

@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>netstandard2.0</TargetFrameworks>
+    <LangVersion>latest</LangVersion>
+    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <PackageLicenseFile>LICENSE</PackageLicenseFile>
+    <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
+    <RootNamespace>System</RootNamespace>
+    <Version>1.3.1</Version>
+    <Authors>Alexandru Macocian</Authors>
+    <RepositoryUrl>https://github.com/AlexMacocian/SystemExtensions</RepositoryUrl>
+    <Description>Security extensions for the System namespace</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Include="../LICENSE">
+      <Pack>True</Pack>
+      <PackagePath></PackagePath>
+    </None>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="System.Security.Cryptography.ProtectedData" Version="8.0.0" />
+  </ItemGroup>
+
+</Project>

SystemExtensions.NetStandard.Security/Utilities/NotClosingCryptoStream.cs

@@ -0,0 +1,22 @@
+using System.IO;
+using System.Security.Cryptography;
+
+namespace System.Security.Utilities;
+
+internal sealed class NotClosingCryptoStream : CryptoStream
+{
+    public NotClosingCryptoStream(Stream stream, ICryptoTransform transform, CryptoStreamMode mode)
+        : base(stream, transform, mode)
+    {
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        if (!this.HasFlushedFinalBlock)
+        {
+            this.FlushFinalBlock();
+        }
+
+        base.Dispose(false);
+    }
+}

SystemExtensions.NetStandard/Cache/AsyncValueCache.cs

@@ -0,0 +1,36 @@
+using System.Extensions;
+using System.Threading.Tasks;
+
+namespace System.Cache;
+public sealed class AsyncValueCache<T>(Func<Task<T>> cacheRefreshOperation, TimeSpan cacheDuration)
+    where T : class
+{
+    private readonly Func<Task<T>> cacheRefreshOperation = cacheRefreshOperation.ThrowIfNull(nameof(cacheRefreshOperation));
+    private readonly TimeSpan cacheDuration = cacheDuration;
+
+    private T? value;
+    private DateTime lastCacheRefresh = DateTime.MinValue;
+
+    public async Task<T> GetValue()
+    {
+        if (DateTime.Now - this.lastCacheRefresh < this.cacheDuration &&
+            this.value is not null)
+        {
+            return this.value;
+        }
+
+        return await this.PerformCacheRefresh();
+    }
+
+    public async Task<T> ForceCacheRefresh()
+    {
+        return await this.PerformCacheRefresh();
+    }
+
+    private async Task<T> PerformCacheRefresh()
+    {
+        this.value = await this.cacheRefreshOperation();
+        this.lastCacheRefresh = DateTime.Now;
+        return this.value;
+    }
+}

SystemExtensions.NetStandard/Cache/ValueCache.cs

@@ -0,0 +1,35 @@
+using System.Extensions;
+
+namespace System.Cache;
+public sealed class ValueCache<T>(Func<T> cacheRefreshOperation, TimeSpan cacheDuration)
+    where T : class
+{
+    private readonly Func<T> cacheRefreshOperation = cacheRefreshOperation.ThrowIfNull(nameof(cacheRefreshOperation));
+    private readonly TimeSpan cacheDuration = cacheDuration;
+
+    private T? value;
+    private DateTime lastCacheRefresh = DateTime.MinValue;
+
+    public T GetValue()
+    {
+        if (DateTime.Now - this.lastCacheRefresh < this.cacheDuration &&
+            this.value is not null)
+        {
+            return this.value;
+        }
+
+        return this.PerformCacheRefresh();
+    }
+
+    public T ForceCacheRefresh()
+    {
+        return this.PerformCacheRefresh();
+    }
+
+    private T PerformCacheRefresh()
+    {
+        this.value = this.cacheRefreshOperation();
+        this.lastCacheRefresh = DateTime.Now;
+        return this.value;
+    }
+}

SystemExtensions.NetStandard/Collections/AVLTree.cs

@@ -1,389 +1,401 @@
 using System.Collections.Generic;
 
-namespace System.Collections.Generic
-{
-    /// <summary>
-    /// AVL tree implementation.
-    /// Thanks to Karim Oumghar for the implementation example.
-    /// Read on https://simpledevcode.wordpress.com/2014/09/16/avl-tree-in-c/
-    /// </summary>
-    /// <typeparam name="T">Provided type.</typeparam>
-    [Serializable]
-    public sealed class AVLTree<T> : ICollection<T> where T : IComparable<T>
-    {
-        #region Fields
-        [Serializable]
-        private class AVLNode<TKey>
-        {
-            public TKey Value;
-            public AVLNode<TKey> Left;
-            public AVLNode<TKey> Right;
-            public AVLNode(TKey value)
-            {
-                this.Value = value;
-            }
-        }
-        AVLNode<T> root;
-        private int count = 0;
-        private readonly bool isReadOnly = false;
-        #endregion
-        #region Properties
-        /// <summary>
-        /// Count of items currently stored in the tree.
-        /// </summary>
-        public int Count
-        {
-            get
-            {
-                return count;
-            }
-        }
-        /// <summary>
-        /// True if the collection is readonly. False otherwise.
-        /// </summary>
-        public bool IsReadOnly => isReadOnly;
-        #endregion
-        #region Constructors
-        /// <summary>
-        /// Initializes a new instance of an AVLTree collection.
-        /// </summary>
-        public AVLTree()
-        {
+namespace System.Collections.Generic;
 
-        }
-        #endregion
-        #region Public Methods
-        /// <summary>
-        /// Adds the value to the tree.
-        /// </summary>
-        /// <param name="value">Value to be added to the tree.</param>
-        public void Add(T value)
+/// <summary>
+/// AVL tree implementation.
+/// Thanks to Karim Oumghar for the implementation example.
+/// Read on https://simpledevcode.wordpress.com/2014/09/16/avl-tree-in-c/
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+[Serializable]
+public sealed class AVLTree<T> : ICollection<T> where T : IComparable<T>
+{
+    #region Fields
+    [Serializable]
+    private class AVLNode<TKey>
+    {
+        public TKey Value;
+        public AVLNode<TKey> Left = default!;
+        public AVLNode<TKey> Right = default!;
+        public AVLNode(TKey value)
         {
-            count++;
-            AVLNode<T> newItem = new AVLNode<T>(value);
-            if (root == null)
-            {
-                root = newItem;
-            }
-            else
-            {
-                root = RecursiveInsertion(root, newItem);
-            }
+            this.Value = value;
         }
-        /// <summary>
-        /// Checks if the key is contained into the tree.
-        /// </summary>
-        /// <param name="value">Value to be checked if present in the tree.</param>
-        /// <returns>True if the value is in the tree.</returns>
-        public bool Contains(T value)
+    }
+    AVLNode<T> root = default!;
+    private int count = 0;
+    private readonly bool isReadOnly = false;
+    #endregion
+    #region Properties
+    /// <summary>
+    /// Count of items currently stored in the tree.
+    /// </summary>
+    public int Count
+    {
+        get
         {
-            AVLNode<T> node = Find(value, root);
-            if (node == null)
-            {
-                return false;
-            }
-            if (node.Value.CompareTo(value) == 0)
-            {
-                return true;
-            }
-            else
-            {
-                return false;
-            }
+            return this.count;
         }
-        /// <summary>
-        /// Removes the specified value from the tree.
-        /// </summary>
-        /// <param name="value">Value to be deleted.</param>
-        public bool Remove(T value)
+    }
+    /// <summary>
+    /// True if the collection is readonly. False otherwise.
+    /// </summary>
+    public bool IsReadOnly => this.isReadOnly;
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Initializes a new instance of an AVLTree collection.
+    /// </summary>
+    public AVLTree()
+    {
+
+    }
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Adds the value to the tree.
+    /// </summary>
+    /// <param name="value">Value to be added to the tree.</param>
+    public void Add(T value)
+    {
+        this.count++;
+        var newItem = new AVLNode<T>(value);
+        if (this.root == null)
+        {
+            this.root = newItem;
+        }
+        else
+        {
+            this.root = this.RecursiveInsertion(this.root, newItem);
+        }
+    }
+    /// <summary>
+    /// Checks if the key is contained into the tree.
+    /// </summary>
+    /// <param name="value">Value to be checked if present in the tree.</param>
+    /// <returns>True if the value is in the tree.</returns>
+    public bool Contains(T value)
+    {
+        var node = this.Find(value, this.root);
+        if (node == null)
+        {
+            return false;
+        }
+
+        if (node.Value.CompareTo(value) == 0)
         {
-            root = Delete(root, value);
             return true;
         }
-        /// <summary>
-        /// Clears the tree.
-        /// </summary>
-        public void Clear()
+        else
         {
-            Queue<AVLNode<T>> queue = new Queue<AVLNode<T>>();
-            queue.Enqueue(root);
+            return false;
+        }
+    }
+    /// <summary>
+    /// Removes the specified value from the tree.
+    /// </summary>
+    /// <param name="value">Value to be deleted.</param>
+    public bool Remove(T value)
+    {
+        this.root = this.Delete(this.root, value)!;
+        return true;
+    }
+    /// <summary>
+    /// Clears the tree.
+    /// </summary>
+    public void Clear()
+    {
+        var queue = new Queue<AVLNode<T>>();
+        queue.Enqueue(this.root);
 
-            while (queue.Count > 0)
-            {
-                AVLNode<T> currentNode = queue.Dequeue();
-                if (currentNode.Left != null)
-                {
-                    queue.Enqueue(currentNode.Left);
-                    currentNode.Left = null;
-                    count--;
-                }
-                if (currentNode.Right != null)
-                {
-                    queue.Enqueue(currentNode.Right);
-                    currentNode.Right = null;
-                    count--;
-                }
-            }
-            root = null;
-            count--;
-        }
-        /// <summary>
-        /// Copies the tree onto the provided array.
-        /// </summary>
-        /// <param name="array">Array to store the values in the tree.</param>
-        /// <param name="arrayIndex">Starting index of the provided array.</param>
-        public void CopyTo(T[] array, int arrayIndex)
+        while (queue.Count > 0)
         {
-            Queue<AVLNode<T>> queue = new Queue<AVLNode<T>>();
-            queue.Enqueue(root);
-            while (queue.Count > 0)
+            var currentNode = queue.Dequeue();
+            if (currentNode.Left != null)
             {
-                AVLNode<T> currentNode = queue.Dequeue();
-                array[arrayIndex++] = currentNode.Value;
-                if (currentNode.Left != null)
-                {
-                    queue.Enqueue(currentNode.Left);
-                }
-                if (currentNode.Right != null)
-                {
-                    queue.Enqueue(currentNode.Right);
-                }
+                queue.Enqueue(currentNode.Left);
+                currentNode.Left = default!;
+                this.count--;
+            }
+
+            if (currentNode.Right != null)
+            {
+                queue.Enqueue(currentNode.Right);
+                currentNode.Right = default!;
+                this.count--;
             }
         }
-        /// <summary>
-        /// Enumerator that iterates over the tree.
-        /// </summary>
-        /// <returns></returns>
-        public IEnumerator<T> GetEnumerator()
+
+        this.root = default!;
+        this.count--;
+    }
+    /// <summary>
+    /// Copies the tree onto the provided array.
+    /// </summary>
+    /// <param name="array">Array to store the values in the tree.</param>
+    /// <param name="arrayIndex">Starting index of the provided array.</param>
+    public void CopyTo(T[] array, int arrayIndex)
+    {
+        var queue = new Queue<AVLNode<T>>();
+        queue.Enqueue(this.root);
+        while (queue.Count > 0)
         {
-            return GetEnumerator(root);
+            var currentNode = queue.Dequeue();
+            array[arrayIndex++] = currentNode.Value;
+            if (currentNode.Left != null)
+            {
+                queue.Enqueue(currentNode.Left);
+            }
+
+            if (currentNode.Right != null)
+            {
+                queue.Enqueue(currentNode.Right);
+            }
         }
-        /// <summary>
-        /// Copies the tree structure into an array.
-        /// </summary>
-        /// <returns>Array containing the values contained in the tree.</returns>
-        public T[] ToArray()
+    }
+    /// <summary>
+    /// Enumerator that iterates over the tree.
+    /// </summary>
+    /// <returns></returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        return this.GetEnumerator(this.root);
+    }
+    /// <summary>
+    /// Copies the tree structure into an array.
+    /// </summary>
+    /// <returns>Array containing the values contained in the tree.</returns>
+    public T[] ToArray()
+    {
+        var array = new T[this.count];
+        this.CopyTo(array, 0);
+        return array;
+    }
+    #endregion
+    #region Private Methods
+    private AVLNode<T> RecursiveInsertion(AVLNode<T> current, AVLNode<T> n)
+    {
+        if (current == null)
         {
-            T[] array = new T[count];
-            CopyTo(array, 0);
-            return array;
-        }
-        #endregion
-        #region Private Methods
-        private AVLNode<T> RecursiveInsertion(AVLNode<T> current, AVLNode<T> n)
-        {
-            if (current == null)
-            {
-                current = n;
-                return current;
-            }
-            else if (n.Value.CompareTo(current.Value) < 0)
-            {
-                current.Left = RecursiveInsertion(current.Left, n);
-                current = BalanceTree(current);
-            }
-            else if (n.Value.CompareTo(current.Value) > 0)
-            {
-                current.Right = RecursiveInsertion(current.Right, n);
-                current = BalanceTree(current);
-            }
+            current = n;
             return current;
         }
-        private AVLNode<T> BalanceTree(AVLNode<T> current)
+        else if (n.Value.CompareTo(current.Value) < 0)
         {
-            int b_factor = BalanceFactor(current);
-            if (b_factor > 1)
-            {
-                if (BalanceFactor(current.Left) > 0)
-                {
-                    current = RotateLL(current);
-                }
-                else
-                {
-                    current = RotateLR(current);
-                }
-            }
-            else if (b_factor < -1)
-            {
-                if (BalanceFactor(current.Right) > 0)
-                {
-                    current = RotateRL(current);
-                }
-                else
-                {
-                    current = RotateRR(current);
-                }
-            }
-            return current;
+            current.Left = this.RecursiveInsertion(current.Left, n);
+            current = this.BalanceTree(current);
         }
-        private AVLNode<T> Delete(AVLNode<T> current, T target)
+        else if (n.Value.CompareTo(current.Value) > 0)
         {
-            AVLNode<T> parent;
-            if (current == null)
-            { return null; }
+            current.Right = this.RecursiveInsertion(current.Right, n);
+            current = this.BalanceTree(current);
+        }
+
+        return current;
+    }
+    private AVLNode<T> BalanceTree(AVLNode<T> current)
+    {
+        var b_factor = this.BalanceFactor(current);
+        if (b_factor > 1)
+        {
+            if (this.BalanceFactor(current.Left) > 0)
+            {
+                current = this.RotateLL(current);
+            }
             else
             {
-                //left subtree
-                if (target.CompareTo(current.Value) < 0)
-                {
-                    current.Left = Delete(current.Left, target);
-                    if (BalanceFactor(current) == -2)//here
-                    {
-                        if (BalanceFactor(current.Right) <= 0)
-                        {
-                            current = RotateRR(current);
-                        }
-                        else
-                        {
-                            current = RotateRL(current);
-                        }
-                    }
-                }
-                //right subtree
-                else if (target.CompareTo(current.Value) > 0)
-                {
-                    current.Right = Delete(current.Right, target);
-                    if (BalanceFactor(current) == 2)
-                    {
-                        if (BalanceFactor(current.Left) >= 0)
-                        {
-                            current = RotateLL(current);
-                        }
-                        else
-                        {
-                            current = RotateLR(current);
-                        }
-                    }
-                }
-                //if target is found
-                else
-                {
-                    count--;
-                    if (current.Right != null)
-                    {
-                        //delete its inorder successor
-                        parent = current.Right;
-                        while (parent.Left != null)
-                        {
-                            parent = parent.Left;
-                        }
-                        current.Value = parent.Value;
-                        current.Right = Delete(current.Right, parent.Value);
-                        if (BalanceFactor(current) == 2)//rebalancing
-                        {
-                            if (BalanceFactor(current.Left) >= 0)
-                            {
-                                current = RotateLL(current);
-                            }
-                            else { current = RotateLR(current); }
-                        }
-                    }
-                    else
-                    {   //if current.left != null
-                        return current.Left;
-                    }
-                }
+                current = this.RotateLR(current);
             }
-            return current;
         }
-        private AVLNode<T> Find(T target, AVLNode<T> current)
+        else if (b_factor < -1)
         {
-            if (current == null)
+            if (this.BalanceFactor(current.Right) > 0)
             {
-                return null;
+                current = this.RotateRL(current);
             }
+            else
+            {
+                current = this.RotateRR(current);
+            }
+        }
+
+        return current;
+    }
+    private AVLNode<T>? Delete(AVLNode<T> current, T target)
+    {
+        if (current == null)
+        { return null; }
+        else
+        {
+            //left subtree
             if (target.CompareTo(current.Value) < 0)
             {
-                if (target.CompareTo(current.Value) == 0)
+                current.Left = this.Delete(current.Left, target)!;
+                if (this.BalanceFactor(current) == -2)//here
                 {
-                    return current;
+                    if (this.BalanceFactor(current.Right) <= 0)
+                    {
+                        current = this.RotateRR(current);
+                    }
+                    else
+                    {
+                        current = this.RotateRL(current);
+                    }
+                }
+            }
+            //right subtree
+            else if (target.CompareTo(current.Value) > 0)
+            {
+                current.Right = this.Delete(current.Right, target)!;
+                if (this.BalanceFactor(current) == 2)
+                {
+                    if (this.BalanceFactor(current.Left) >= 0)
+                    {
+                        current = this.RotateLL(current);
+                    }
+                    else
+                    {
+                        current = this.RotateLR(current);
+                    }
+                }
+            }
+            //if target is found
+            else
+            {
+                this.count--;
+                if (current.Right != null)
+                {
+                    //delete its inorder successor
+                    var parent = current.Right;
+                    while (parent.Left != null)
+                    {
+                        parent = parent.Left;
+                    }
+
+                    current.Value = parent.Value;
+                    current.Right = this.Delete(current.Right, parent.Value)!;
+                    if (this.BalanceFactor(current) == 2)//rebalancing
+                    {
+                        if (this.BalanceFactor(current.Left) >= 0)
+                        {
+                            current = this.RotateLL(current);
+                        }
+                        else { current = this.RotateLR(current); }
+                    }
                 }
                 else
-                    return Find(target, current.Left);
+                {   //if current.left != null
+                    return current.Left;
+                }
+            }
+        }
+
+        return current;
+    }
+    private AVLNode<T>? Find(T target, AVLNode<T> current)
+    {
+        if (current == null)
+        {
+            return null;
+        }
+
+        if (target.CompareTo(current.Value) < 0)
+        {
+            if (target.CompareTo(current.Value) == 0)
+            {
+                return current;
             }
             else
             {
-                if (target.CompareTo(current.Value) == 0)
-                {
-                    return current;
-                }
-                else
-                    return Find(target, current.Right);
+                return this.Find(target, current.Left);
             }
-
         }
-        private int Max(int l, int r)
+        else
         {
-            return l > r ? l : r;
-        }
-        private int GetHeight(AVLNode<T> current)
-        {
-            int height = 0;
-            if (current != null)
+            if (target.CompareTo(current.Value) == 0)
             {
-                int l = GetHeight(current.Left);
-                int r = GetHeight(current.Right);
-                int m = Max(l, r);
-                height = m + 1;
+                return current;
             }
-            return height;
-        }
-        private int BalanceFactor(AVLNode<T> current)
-        {
-            int l = GetHeight(current.Left);
-            int r = GetHeight(current.Right);
-            int b_factor = l - r;
-            return b_factor;
-        }
-        private AVLNode<T> RotateRR(AVLNode<T> parent)
-        {
-            AVLNode<T> pivot = parent.Right;
-            parent.Right = pivot.Left;
-            pivot.Left = parent;
-            return pivot;
-        }
-        private AVLNode<T> RotateLL(AVLNode<T> parent)
-        {
-            AVLNode<T> pivot = parent.Left;
-            parent.Left = pivot.Right;
-            pivot.Right = parent;
-            return pivot;
-        }
-        private AVLNode<T> RotateLR(AVLNode<T> parent)
-        {
-            AVLNode<T> pivot = parent.Left;
-            parent.Left = RotateRR(pivot);
-            return RotateLL(parent);
-        }
-        private AVLNode<T> RotateRL(AVLNode<T> parent)
-        {
-            AVLNode<T> pivot = parent.Right;
-            parent.Right = RotateLL(pivot);
-            return RotateRR(parent);
-        }
-        IEnumerator IEnumerable.GetEnumerator()
-        {
-            throw new NotImplementedException();
-        }
-        private IEnumerator<T> GetEnumerator(AVLNode<T> rootNode)
-        {
-            Queue<AVLNode<T>> queue = new Queue<AVLNode<T>>();
-            queue.Enqueue(rootNode);
-
-            while (queue.Count > 0)
+            else
             {
-                AVLNode<T> currentNode = queue.Dequeue();
-                yield return currentNode.Value;
-                if (currentNode.Left != null)
-                {
-                    queue.Enqueue(currentNode.Left);
-                }
-                if (currentNode.Right != null)
-                {
-                    queue.Enqueue(currentNode.Right);
-                }
+                return this.Find(target, current.Right);
             }
         }
-        #endregion
     }
+    private int Max(int l, int r)
+    {
+        return l > r ? l : r;
+    }
+    private int GetHeight(AVLNode<T> current)
+    {
+        var height = 0;
+        if (current != null)
+        {
+            var l = this.GetHeight(current.Left);
+            var r = this.GetHeight(current.Right);
+            var m = this.Max(l, r);
+            height = m + 1;
+        }
+
+        return height;
+    }
+    private int BalanceFactor(AVLNode<T> current)
+    {
+        var l = this.GetHeight(current.Left);
+        var r = this.GetHeight(current.Right);
+        var b_factor = l - r;
+        return b_factor;
+    }
+    private AVLNode<T> RotateRR(AVLNode<T> parent)
+    {
+        var pivot = parent.Right;
+        parent.Right = pivot.Left;
+        pivot.Left = parent;
+        return pivot;
+    }
+    private AVLNode<T> RotateLL(AVLNode<T> parent)
+    {
+        var pivot = parent.Left;
+        parent.Left = pivot.Right;
+        pivot.Right = parent;
+        return pivot;
+    }
+    private AVLNode<T> RotateLR(AVLNode<T> parent)
+    {
+        var pivot = parent.Left;
+        parent.Left = this.RotateRR(pivot);
+        return this.RotateLL(parent);
+    }
+    private AVLNode<T> RotateRL(AVLNode<T> parent)
+    {
+        var pivot = parent.Right;
+        parent.Right = this.RotateLL(pivot);
+        return this.RotateRR(parent);
+    }
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    private IEnumerator<T> GetEnumerator(AVLNode<T> rootNode)
+    {
+        var queue = new Queue<AVLNode<T>>();
+        queue.Enqueue(rootNode);
+
+        while (queue.Count > 0)
+        {
+            var currentNode = queue.Dequeue();
+            yield return currentNode.Value;
+            if (currentNode.Left != null)
+            {
+                queue.Enqueue(currentNode.Left);
+            }
+
+            if (currentNode.Right != null)
+            {
+                queue.Enqueue(currentNode.Right);
+            }
+        }
+    }
+    #endregion
 }

SystemExtensions.NetStandard/Collections/BinaryHeap.cs

@@ -1,214 +1,219 @@
 using System.Linq;
 
-namespace System.Collections.Generic
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Binary heap implementation.
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+[Serializable]
+public sealed class BinaryHeap<T> : IEnumerable<T> where T : IComparable<T>
 {
+    #region Fields
+    T[] items;
+    private int capacity;
+    private int count;
+    private readonly int initialCapacity;
+    #endregion
+    #region Properties
     /// <summary>
-    /// Binary heap implementation.
+    /// Minimum value from the heap.
     /// </summary>
-    /// <typeparam name="T">Provided type.</typeparam>
-    [Serializable]
-    public sealed class BinaryHeap<T> : IEnumerable<T> where T : IComparable<T>
+    public T Min
     {
-        #region Fields
-        T[] items;
-        private int capacity;
-        private int count;
-        private readonly int initialCapacity;
-        #endregion
-        #region Properties
-        /// <summary>
-        /// Minimum value from the heap.
-        /// </summary>
-        public T Min
+        get
         {
-            get
-            {
-                return items[1];
-            }
+            return this.items[1];
         }
-        /// <summary>
-        /// Maximum value from the heap.
-        /// </summary>
-        public T Max
-        {
-            get
-            {
-                return items[count];
-            }
-        }
-        /// <summary>
-        /// Capacity of the heap.
-        /// </summary>
-        public int Capacity
-        {
-            get => capacity;
-            set
-            {
-                if (value > capacity)
-                {
-                    Array.Resize(ref items, value);
-                    capacity = value;
-                }
-            }
-        }
-        /// <summary>
-        /// Number of elements in the heap.
-        /// </summary>
-        public int Count { get => count; }
-        #endregion
-        #region Constructors
-        /// <summary>
-        /// Constructor for a binary heap data structure.
-        /// </summary>
-        public BinaryHeap()
-        {
-            capacity = 10;
-            initialCapacity = capacity;
-            items = new T[capacity];
-        }
-        /// <summary>
-        /// Constructor for a binary heap data structure.
-        /// </summary>
-        /// <param name="capacity">Initial capacity of the heap. Used for initial alocation of the array.</param>
-        public BinaryHeap(int capacity)
-        {
-            this.capacity = capacity;
-            initialCapacity = capacity;
-            items = new T[capacity];
-        }
-        #endregion
-        #region Public Methods
-        /// <summary>
-        /// Adds value to the queue.
-        /// </summary>
-        /// <param name="value">Value to be added.</param>
-        public void Add(T value)
-        {
-            if (count == Capacity - 1)
-            {
-                Capacity = 2 * Capacity;
-            }
-            int position = ++count;
-            for (; position > 1 && value.CompareTo(items[position / 2]) < 0; position /= 2)
-            {
-                items[position] = items[position / 2];
-            }
-            items[position] = value;
-        }
-        /// <summary>
-        /// Removes the item at the root. Throws exception if there are no items in the heap.
-        /// </summary>
-        /// <returns>Value removed.</returns>
-        public T Remove()
-        {
-            if (count == 0)
-            {
-                throw new IndexOutOfRangeException("Heap is empty!");
-            }
-            T min = items[1];
-            items[1] = items[count--];
-            BubbleDown(1);
-            return min;
-        }
-        /// <summary>
-        /// Peeks at the item at the root. Throws exception if there are no items in the heap.
-        /// </summary>
-        /// <returns></returns>
-        public T Peek()
-        {
-            if (count == 0)
-            {
-                throw new IndexOutOfRangeException("Heap is empty!");
-            }
-            T min = items[1];
-            return min;
-        }
-        /// <summary>
-        /// Return the heap structure as an array
-        /// </summary>
-        /// <returns>Array with values sorted as in heap</returns>
-        public T[] ToArray()
-        {
-            T[] newArray = new T[count];
-            Array.Copy(items, 1, newArray, 0, count);
-            return newArray;
-        }
-        /// <summary>
-        /// Determines whether the heap contains specified value
-        /// </summary>
-        /// <param name="value">Value to locate in the heap</param>
-        /// <returns></returns>
-        public bool Contains(T value)
-        {
-            return items.Contains(value);
-        }
-        /// <summary>
-        /// Clears the heap
-        /// </summary>
-        public void Clear()
-        {
-            count = 0;
-        }
-        /// <summary>
-        /// Clears the heap.
-        /// </summary>
-        /// <param name="completeClear">Specifies if the underlying array should be cleared as well</param>
-        public void Clear(bool completeClear)
-        {
-            count = 0;
-            if (completeClear)
-            {
-                capacity = initialCapacity;
-                items = new T[initialCapacity];
-            }
-        }
-        /// <summary>
-        /// Returns an enumerator that iterates over the heap.
-        /// </summary>
-        /// <returns>Enumerator that iterates over the heap.</returns>
-        public IEnumerator<T> GetEnumerator()
-        {
-            for (int i = 0; i < count; i++)
-            {
-                yield return items[i + 1];
-            }
-        }
-        #endregion
-        #region Private Methods
-        /// <summary>
-        /// Bubble the specified element to its position
-        /// </summary>
-        /// <param name="index">Index of element to bubble</param>
-        private void BubbleDown(int index)
-        {
-            T temp = items[index];
-            int childIndex;
-            for (; 2 * index <= count; index = childIndex)
-            {
-                childIndex = 2 * index;
-                if (childIndex != Count && items[childIndex].CompareTo(items[childIndex + 1]) > 0)
-                {
-                    childIndex++;
-                }
-                if (temp.CompareTo(items[childIndex]) > 0)
-                {
-                    items[index] = items[childIndex];
-                }
-                else
-                {
-                    break;
-                }
-            }
-            items[index] = temp;
-        }
-        /// <summary>
-        /// Implementation of IEnumerator.
-        /// </summary>
-        /// <returns>Enumerator over the array.</returns>
-        IEnumerator IEnumerable.GetEnumerator()
-        {
-            throw new NotImplementedException();
-        }
-        #endregion
     }
+    /// <summary>
+    /// Maximum value from the heap.
+    /// </summary>
+    public T Max
+    {
+        get
+        {
+            return this.items[this.count];
+        }
+    }
+    /// <summary>
+    /// Capacity of the heap.
+    /// </summary>
+    public int Capacity
+    {
+        get => this.capacity;
+        set
+        {
+            if (value > this.capacity)
+            {
+                Array.Resize(ref this.items, value);
+                this.capacity = value;
+            }
+        }
+    }
+    /// <summary>
+    /// Number of elements in the heap.
+    /// </summary>
+    public int Count { get => this.count; }
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Constructor for a binary heap data structure.
+    /// </summary>
+    public BinaryHeap()
+    {
+        this.capacity = 10;
+        this.initialCapacity = this.capacity;
+        this.items = new T[this.capacity];
+    }
+    /// <summary>
+    /// Constructor for a binary heap data structure.
+    /// </summary>
+    /// <param name="capacity">Initial capacity of the heap. Used for initial alocation of the array.</param>
+    public BinaryHeap(int capacity)
+    {
+        this.capacity = capacity;
+        this.initialCapacity = capacity;
+        this.items = new T[capacity];
+    }
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Adds value to the queue.
+    /// </summary>
+    /// <param name="value">Value to be added.</param>
+    public void Add(T value)
+    {
+        if (this.count == this.Capacity - 1)
+        {
+            this.Capacity = 2 * this.Capacity;
+        }
+
+        var position = ++this.count;
+        for (; position > 1 && value.CompareTo(this.items[position / 2]) < 0; position /= 2)
+        {
+            this.items[position] = this.items[position / 2];
+        }
+
+        this.items[position] = value;
+    }
+    /// <summary>
+    /// Removes the item at the root. Throws exception if there are no items in the heap.
+    /// </summary>
+    /// <returns>Value removed.</returns>
+    public T Remove()
+    {
+        if (this.count == 0)
+        {
+            throw new IndexOutOfRangeException("Heap is empty!");
+        }
+
+        var min = this.items[1];
+        this.items[1] = this.items[this.count--];
+        this.BubbleDown(1);
+        return min;
+    }
+    /// <summary>
+    /// Peeks at the item at the root. Throws exception if there are no items in the heap.
+    /// </summary>
+    /// <returns></returns>
+    public T Peek()
+    {
+        if (this.count == 0)
+        {
+            throw new IndexOutOfRangeException("Heap is empty!");
+        }
+
+        var min = this.items[1];
+        return min;
+    }
+    /// <summary>
+    /// Return the heap structure as an array
+    /// </summary>
+    /// <returns>Array with values sorted as in heap</returns>
+    public T[] ToArray()
+    {
+        var newArray = new T[this.count];
+        Array.Copy(this.items, 1, newArray, 0, this.count);
+        return newArray;
+    }
+    /// <summary>
+    /// Determines whether the heap contains specified value
+    /// </summary>
+    /// <param name="value">Value to locate in the heap</param>
+    /// <returns></returns>
+    public bool Contains(T value)
+    {
+        return this.items.Contains(value);
+    }
+    /// <summary>
+    /// Clears the heap
+    /// </summary>
+    public void Clear()
+    {
+        this.count = 0;
+    }
+    /// <summary>
+    /// Clears the heap.
+    /// </summary>
+    /// <param name="completeClear">Specifies if the underlying array should be cleared as well</param>
+    public void Clear(bool completeClear)
+    {
+        this.count = 0;
+        if (completeClear)
+        {
+            this.capacity = this.initialCapacity;
+            this.items = new T[this.initialCapacity];
+        }
+    }
+    /// <summary>
+    /// Returns an enumerator that iterates over the heap.
+    /// </summary>
+    /// <returns>Enumerator that iterates over the heap.</returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        for (var i = 0; i < this.count; i++)
+        {
+            yield return this.items[i + 1];
+        }
+    }
+    #endregion
+    #region Private Methods
+    /// <summary>
+    /// Bubble the specified element to its position
+    /// </summary>
+    /// <param name="index">Index of element to bubble</param>
+    private void BubbleDown(int index)
+    {
+        var temp = this.items[index];
+        int childIndex;
+        for (; 2 * index <= this.count; index = childIndex)
+        {
+            childIndex = 2 * index;
+            if (childIndex != this.Count && this.items[childIndex].CompareTo(this.items[childIndex + 1]) > 0)
+            {
+                childIndex++;
+            }
+
+            if (temp.CompareTo(this.items[childIndex]) > 0)
+            {
+                this.items[index] = this.items[childIndex];
+            }
+            else
+            {
+                break;
+            }
+        }
+
+        this.items[index] = temp;
+    }
+    /// <summary>
+    /// Implementation of IEnumerator.
+    /// </summary>
+    /// <returns>Enumerator over the array.</returns>
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    #endregion
 }

SystemExtensions.NetStandard/Collections/CircularBuffer.cs

@@ -0,0 +1,208 @@
+using System.Linq;
+using System.Threading;
+
+namespace System.Collections.Generic;
+public sealed class CircularBuffer<T> : IList<T>
+{
+    private readonly T[] buffer;
+    private int head;
+    private int tail;
+
+    public int Count { get; private set; }
+    public bool IsReadOnly { get; } = false;
+
+    public T this[int index]
+    {
+        get
+        {
+            if (index > this.Count)
+            {
+                throw new ArgumentOutOfRangeException(nameof(index));
+            }
+
+            return this.buffer[(this.head + index) % this.buffer.Length];
+        }
+        set
+        {
+            if (index > this.Count)
+            {
+                throw new ArgumentOutOfRangeException(nameof(index));
+            }
+
+            this.buffer[(this.head + index) % this.buffer.Length] = value;
+        }
+    }
+
+    public CircularBuffer(int capacity)
+    {
+        if (capacity < 1) throw new ArgumentException($"{nameof(capacity)} cannot be smaller than 1");
+
+        this.buffer = new T[capacity];
+        this.head = 0;
+        this.tail = 0;
+    }
+
+    public CircularBuffer(T[] buffer, int head, int tail)
+    {
+        if (buffer.Length == 0) throw new ArgumentException($"{nameof(buffer)} cannot be of length 0");
+
+        this.buffer = buffer;
+        this.head = head;
+        this.tail = tail;
+        this.Count = this.tail < this.head ?
+            this.tail + this.buffer.Length - this.head + 1 :
+            this.tail - this.head + 1;
+    }
+
+    public CircularBuffer(T[] buffer)
+    {
+        if (buffer.Length == 0) throw new ArgumentException($"{nameof(buffer)} cannot be of length 0");
+
+        this.buffer = buffer;
+        this.head = 0;
+        this.tail = this.buffer.Length - 1;
+        this.Count = this.buffer.Length;
+    }
+
+    public void Add(T item)
+    {
+        if (this.Count == this.buffer.Length)
+        {
+            this.buffer[this.tail] = item;
+            this.tail = (this.tail + 1) % this.buffer.Length;
+            this.head = (this.head + 1) % this.buffer.Length;
+        }
+        else
+        {
+            this.buffer[this.tail] = item;
+            this.tail = (this.tail + 1) % this.buffer.Length;
+            this.Count++;
+        }
+    }
+
+    public void Clear()
+    {
+        this.head = 0;
+        this.tail = 0;
+        this.Count = 0;
+    }
+
+    public void DeepClear()
+    {
+        this.Clear();
+        Array.Clear(this.buffer, 0, this.buffer.Length);
+    }
+
+    public bool Contains(T item)
+    {
+        var comparer = EqualityComparer<T>.Default;
+        foreach(var itItem in this)
+        {
+            if (comparer.Equals(itItem, item))
+            {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public bool Remove(T item)
+    {
+        var index = this.head;
+        var comparer = EqualityComparer<T>.Default;
+        for (var i = 0; i < this.Count; i++)
+        {
+            if (comparer.Equals(this.buffer[index % this.buffer.Length], item))
+            {
+                int nextIndex;
+                for (var j = 0; j < this.Count - i - 1; j++)
+                {
+                    nextIndex = (index + 1) % this.buffer.Length;
+                    this.buffer[index] = this.buffer[nextIndex];
+                    index = nextIndex;
+                }
+
+                this.Count--;
+                this.tail = this.tail == 0 ? this.buffer.Length - 1 : this.tail - 1;
+                return true;
+            }
+
+            index = (index + 1) % this.buffer.Length;
+        }
+
+        return false;
+    }
+
+    public void CopyTo(T[] array, int arrayIndex)
+    {
+        foreach(var item in this)
+        {
+            array[arrayIndex++] = item;
+        }
+    }
+
+    public IEnumerator<T> GetEnumerator()
+    {
+        var index = this.head;
+        for (var i = 0; i < this.Count; i++)
+        {
+            yield return this.buffer[index];
+            index = (index + 1) % this.buffer.Length;
+        }
+    }
+
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        return this.GetEnumerator();
+    }
+
+    public int IndexOf(T item)
+    {
+        var comparer = EqualityComparer<T>.Default;
+        for (var i = 0; i < this.Count; i++)
+        {
+            if (comparer.Equals(this[i], item))
+            {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    public void Insert(int index, T item)
+    {
+        if (index < 0 || index > this.Count) throw new ArgumentOutOfRangeException(nameof(index));
+        
+        if (this.Count == this.buffer.Length) throw new InvalidOperationException("Cannot insert into a full buffer.");
+
+        if (index == this.Count)
+        {
+            this.Add(item);
+            return;
+        }
+
+        for (var i = this.Count; i > index; i--)
+        {
+            this.buffer[(this.head + i) % this.buffer.Length] = this.buffer[(this.head + i - 1) % this.buffer.Length];
+        }
+
+        this.buffer[(this.head + index) % this.buffer.Length] = item;
+        this.tail = (this.tail + 1) % this.buffer.Length;
+        this.Count++;
+    }
+
+    public void RemoveAt(int index)
+    {
+        if (index < 0 || index >= this.Count) throw new ArgumentOutOfRangeException(nameof(index));
+
+        for (var i = index; i < this.Count - 1; i++)
+        {
+            this.buffer[(this.head + i) % this.buffer.Length] = this.buffer[(this.head + i + 1) % this.buffer.Length];
+        }
+
+        this.tail = (this.tail - 1 + this.buffer.Length) % this.buffer.Length;
+        this.Count--;
+    }
+}

SystemExtensions.NetStandard/Collections/IQueue.cs

@@ -1,39 +1,38 @@
-namespace System.Collections.Generic
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Interface for queue implementations.
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+public interface IQueue<T> : IEnumerable<T>
 {
     /// <summary>
-    /// Interface for queue implementations.
+    /// Returns the number of items in the queue.
     /// </summary>
-    /// <typeparam name="T">Provided type.</typeparam>
-    public interface IQueue<T> : IEnumerable<T>
-    {
-        /// <summary>
-        /// Returns the number of items in the queue.
-        /// </summary>
-        int Count { get; }
-        /// <summary>
-        /// Inserts item into the queue.
-        /// </summary>
-        /// <param name="item">Item to be inserted.</param>
-        void Enqueue(T item);
-        /// <summary>
-        /// Remove the first item in the queue.
-        /// </summary>
-        /// <returns>First item in the queue.</returns>
-        T Dequeue();
-        /// <summary>
-        /// Looks up the first item from the queue without removing it.
-        /// </summary>
-        /// <returns>First item from the queue.</returns>
-        T Peek();
-        /// <summary>
-        /// Clears the contents of the queue.
-        /// </summary>
-        void Clear();
-        /// <summary>
-        /// Checks if queue contains an item.
-        /// </summary>
-        /// <param name="item">Item to be checked.</param>
-        /// <returns>True if queue contains provided item. False otherwise.</returns>
-        bool Contains(T item);
-    }
+    int Count { get; }
+    /// <summary>
+    /// Inserts item into the queue.
+    /// </summary>
+    /// <param name="item">Item to be inserted.</param>
+    void Enqueue(T item);
+    /// <summary>
+    /// Remove the first item in the queue.
+    /// </summary>
+    /// <returns>First item in the queue.</returns>
+    T Dequeue();
+    /// <summary>
+    /// Looks up the first item from the queue without removing it.
+    /// </summary>
+    /// <returns>First item from the queue.</returns>
+    T Peek();
+    /// <summary>
+    /// Clears the contents of the queue.
+    /// </summary>
+    void Clear();
+    /// <summary>
+    /// Checks if queue contains an item.
+    /// </summary>
+    /// <param name="item">Item to be checked.</param>
+    /// <returns>True if queue contains provided item. False otherwise.</returns>
+    bool Contains(T item);
 }

SystemExtensions.NetStandard/Collections/PriorityQueue.cs

@@ -1,103 +1,102 @@
-namespace System.Collections.Generic
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Priority Queue data structure. The implementation is based on an array-based implementation of Binary Heap.
+/// Exposes some of the functionality of the Binary Heap as a queue.
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+[Serializable]
+public sealed class PriorityQueue<T> : IQueue<T> where T : IComparable<T>
 {
+    #region Fields
+    private readonly BinaryHeap<T> binaryHeap;
+    #endregion
+    #region Properties
     /// <summary>
-    /// Priority Queue data structure. The implementation is based on an array-based implementation of Binary Heap.
-    /// Exposes some of the functionality of the Binary Heap as a queue.
+    /// Returns the number of elements stored into the queue.
     /// </summary>
-    /// <typeparam name="T">Provided type.</typeparam>
-    [Serializable]
-    public sealed class PriorityQueue<T> : IQueue<T> where T : IComparable<T>
+    public int Count
     {
-        #region Fields
-        private readonly BinaryHeap<T> binaryHeap;
-        #endregion
-        #region Properties
-        /// <summary>
-        /// Returns the number of elements stored into the queue.
-        /// </summary>
-        public int Count
+        get
         {
-            get
-            {
-                return binaryHeap.Count;
-            }
+            return this.binaryHeap.Count;
         }
-        #endregion
-        #region Constructors
-        /// <summary>
-        /// Constructor for priority queue data structure.
-        /// </summary>
-        public PriorityQueue()
-        {
-            binaryHeap = new BinaryHeap<T>();
-        }
-        #endregion
-        #region Public Methods
-        /// <summary>
-        /// Add provided value to the queue.
-        /// </summary>
-        /// <param name="value">Value to be added to the queue.</param>
-        public void Enqueue(T value)
-        {
-            binaryHeap.Add(value);
-        }
-        /// <summary>
-        /// Pops the queue and removes the highest priority value from the queue.
-        /// </summary>
-        /// <returns>Highest priority value from the queue</returns>
-        public T Dequeue()
-        {
-            if (Count > 0)
-            {
-                return binaryHeap.Remove();
-            }
-            else
-            {
-                throw new IndexOutOfRangeException("Queue is empty!");
-            }
-        }
-        /// <summary>
-        /// Looks up the highest priority value from the queue. Doesn't alter the queue in any way.
-        /// </summary>
-        /// <returns>Highest priority value from the queue.</returns>
-        public T Peek()
-        {
-            return binaryHeap.Min;
-        }
-        /// <summary>
-        /// Clears the queue contents, removing any value stored into the queue.
-        /// </summary>
-        public void Clear()
-        {
-            binaryHeap.Clear();
-        }
-        /// <summary>
-        /// Checks if queue contains provided item.
-        /// </summary>
-        /// <param name="item">Item to be checked.</param>
-        /// <returns>True if queue contains the provided item. False otherwise.</returns>
-        public bool Contains(T item)
-        {
-            return binaryHeap.Contains(item);
-        }
-        /// <summary>
-        /// Returns an enumerator that iterates over the queue.
-        /// </summary>
-        /// <returns>Enumerator that iterates over the queue.</returns>
-        public IEnumerator<T> GetEnumerator()
-        {
-            return binaryHeap.GetEnumerator();
-        }
-        #endregion
-        #region Private Methods
-        /// <summary>
-        /// Necesarry for the implementatio of IQueue.
-        /// </summary>
-        /// <returns></returns>
-        IEnumerator IEnumerable.GetEnumerator()
-        {
-            throw new NotImplementedException();
-        }
-        #endregion
     }
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Constructor for priority queue data structure.
+    /// </summary>
+    public PriorityQueue()
+    {
+        this.binaryHeap = new BinaryHeap<T>();
+    }
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Add provided value to the queue.
+    /// </summary>
+    /// <param name="value">Value to be added to the queue.</param>
+    public void Enqueue(T value)
+    {
+        this.binaryHeap.Add(value);
+    }
+    /// <summary>
+    /// Pops the queue and removes the highest priority value from the queue.
+    /// </summary>
+    /// <returns>Highest priority value from the queue</returns>
+    public T Dequeue()
+    {
+        if (this.Count > 0)
+        {
+            return this.binaryHeap.Remove();
+        }
+        else
+        {
+            throw new IndexOutOfRangeException("Queue is empty!");
+        }
+    }
+    /// <summary>
+    /// Looks up the highest priority value from the queue. Doesn't alter the queue in any way.
+    /// </summary>
+    /// <returns>Highest priority value from the queue.</returns>
+    public T Peek()
+    {
+        return this.binaryHeap.Min;
+    }
+    /// <summary>
+    /// Clears the queue contents, removing any value stored into the queue.
+    /// </summary>
+    public void Clear()
+    {
+        this.binaryHeap.Clear();
+    }
+    /// <summary>
+    /// Checks if queue contains provided item.
+    /// </summary>
+    /// <param name="item">Item to be checked.</param>
+    /// <returns>True if queue contains the provided item. False otherwise.</returns>
+    public bool Contains(T item)
+    {
+        return this.binaryHeap.Contains(item);
+    }
+    /// <summary>
+    /// Returns an enumerator that iterates over the queue.
+    /// </summary>
+    /// <returns>Enumerator that iterates over the queue.</returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        return this.binaryHeap.GetEnumerator();
+    }
+    #endregion
+    #region Private Methods
+    /// <summary>
+    /// Necesarry for the implementatio of IQueue.
+    /// </summary>
+    /// <returns></returns>
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    #endregion
 }

SystemExtensions.NetStandard/Collections/SkipList.cs

@@ -1,236 +1,248 @@
-namespace System.Collections.Generic
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Skip list implementation.
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+[Serializable]
+public sealed class SkipList<T> : ICollection<T> where T : IComparable<T>
 {
-    /// <summary>
-    /// Skip list implementation.
-    /// </summary>
-    /// <typeparam name="T">Provided type.</typeparam>
+    #region Fields
     [Serializable]
-    public sealed class SkipList<T> : ICollection<T> where T : IComparable<T>
+    private class NodeSet<TKey>
     {
-        #region Fields
-        [Serializable]
-        private class NodeSet<TKey>
-        {
-            public TKey Key;
-            public int Level;
-            public NodeSet<TKey>[] Next;
+        public TKey Key;
+        public int Level;
+        public NodeSet<TKey>[] Next;
 
-            public NodeSet(TKey key, int level)
-            {
-                this.Key = key;
-                this.Level = level;
-                Next = new NodeSet<TKey>[level + 1];
-            }
-        }
-        private int count;
-        private readonly Random random;
-        private readonly NodeSet<T> head;
-        private readonly NodeSet<T> end;
-        private readonly int maxLevel = 10;
-        private int level;
-        #endregion
-        #region Properties
-        /// <summary>
-        /// Number of elements in the list.
-        /// </summary>
-        public int Count { get => count; }
-        /// <summary>
-        /// Specifies if the collection can be modified.
-        /// </summary>
-        public bool IsReadOnly { get; set; }
-        #endregion
-        #region Constructors
-        /// <summary>
-        /// Creates a new instance of SkipList collection.
-        /// </summary>
-        /// <param name="maxLevel">Maximum level of the skip list.</param>
-        public SkipList(int maxLevel = 10)
+        public NodeSet(TKey key, int level)
         {
-            this.maxLevel = maxLevel;
-            random = new Random();
-            head = new NodeSet<T>(default, maxLevel);
-            end = head;
-            for (int i = 0; i <= maxLevel; i++)
-            {
-                head.Next[i] = end;
-            }
+            this.Key = key;
+            this.Level = level;
+            this.Next = new NodeSet<TKey>[level + 1];
+        }
+    }
+    private int count;
+    private readonly Random random;
+    private readonly NodeSet<T> head;
+    private readonly NodeSet<T> end;
+    private readonly int maxLevel = 10;
+    private int level;
+    #endregion
+    #region Properties
+    /// <summary>
+    /// Number of elements in the list.
+    /// </summary>
+    public int Count { get => this.count; }
+    /// <summary>
+    /// Specifies if the collection can be modified.
+    /// </summary>
+    public bool IsReadOnly { get; set; }
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Creates a new instance of SkipList collection.
+    /// </summary>
+    /// <param name="maxLevel">Maximum level of the skip list.</param>
+    public SkipList(int maxLevel = 10)
+    {
+        this.maxLevel = maxLevel;
+        this.random = new Random();
+        this.head = new NodeSet<T>(default!, maxLevel);
+        this.end = this.head;
+        for (var i = 0; i <= maxLevel; i++)
+        {
+            this.head.Next[i] = this.end;
+        }
+    }
+
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Adds an item to the collection.
+    /// </summary>
+    /// <param name="item">Item to be added.</param>
+    public void Add(T item)
+    {
+        var curNode = this.head;
+        var newLevel = 0;
+        while (this.random.Next(0, 2) > 0 && newLevel < this.maxLevel)
+        {
+            newLevel++;
         }
 
-        #endregion
-        #region Public Methods
-        /// <summary>
-        /// Adds an item to the collection.
-        /// </summary>
-        /// <param name="item">Item to be added.</param>
-        public void Add(T item)
+        if (newLevel > this.level)
         {
-            NodeSet<T> curNode = head;
-            int newLevel = 0;
-            while (random.Next(0, 2) > 0 && newLevel < maxLevel)
-            {
-                newLevel++;
-            }
-            if (newLevel > level)
-            {
-                level = newLevel;
-            }
-            NodeSet<T> newNode = new NodeSet<T>(item, newLevel);
-            for (var i = 0; i <= newLevel; i++)
-            {
-                if (i > curNode.Level)
-                {
-                    curNode = head;
-                }
-                while (curNode.Next[i] != end && curNode.Next[i].Key.CompareTo(item) < 0)
-                {
-                    curNode = curNode.Next[i];
-                }
-                newNode.Next[i] = curNode.Next[i];
-                curNode.Next[i] = newNode;
-            }
-            count++;
+            this.level = newLevel;
         }
-        /// <summary>
-        /// Removes provided item from the collection.
-        /// </summary>
-        /// <param name="item">Item to be removed.</param>
-        /// <returns>True if removal was successful.</returns>
-        public bool Remove(T item)
+
+        var newNode = new NodeSet<T>(item, newLevel);
+        for (var i = 0; i <= newLevel; i++)
         {
-            bool removed = false;
-            NodeSet<T> curNode = head;
-            for (var i = 0; i <= maxLevel; i++)
+            if (i > curNode.Level)
             {
-                if (i > curNode.Level)
-                {
-                    curNode = head;
-                }
-                while (curNode.Next[i] != end && curNode.Next[i].Key.CompareTo(item) < 0)
-                {
-                    curNode = curNode.Next[i];
-                }
-                if (curNode.Next[i].Key.CompareTo(item) == 0) //Item is present on this level
-                {
-                    curNode.Next[i] = curNode.Next[i].Next[i];
-                    removed = true;
-                }
-                else
-                {
-                    break;
-                }
+                curNode = this.head;
             }
-            if (removed)
+
+            while (curNode.Next[i] != this.end && curNode.Next[i].Key.CompareTo(item) < 0)
             {
-                count--;
-                return true;
+                curNode = curNode.Next[i];
+            }
+
+            newNode.Next[i] = curNode.Next[i];
+            curNode.Next[i] = newNode;
+        }
+
+        this.count++;
+    }
+    /// <summary>
+    /// Removes provided item from the collection.
+    /// </summary>
+    /// <param name="item">Item to be removed.</param>
+    /// <returns>True if removal was successful.</returns>
+    public bool Remove(T item)
+    {
+        var removed = false;
+        var curNode = this.head;
+        for (var i = 0; i <= this.maxLevel; i++)
+        {
+            if (i > curNode.Level)
+            {
+                curNode = this.head;
+            }
+
+            while (curNode.Next[i] != this.end && curNode.Next[i].Key.CompareTo(item) < 0)
+            {
+                curNode = curNode.Next[i];
+            }
+
+            if (curNode.Next[i].Key.CompareTo(item) == 0) //Item is present on this level
+            {
+                curNode.Next[i] = curNode.Next[i].Next[i];
+                removed = true;
             }
             else
             {
-                return false;
+                break;
             }
         }
-        /// <summary>
-        /// Clears the collection.
-        /// </summary>
-        public void Clear()
+
+        if (removed)
         {
-            for (int i = 0; i < maxLevel; i++)
-            {
-                head.Next[i] = end;
-            }
-            count = 0;
+            this.count--;
+            return true;
         }
-        /// <summary>
-        /// Checks if item is present in the collection.
-        /// </summary>
-        /// <param name="item">Item to be checked.</param>
-        /// <returns>True if item is present in the collection.</returns>
-        public bool Contains(T item)
+        else
         {
-            if (Find(item) != null)
-            {
-                return true;
-            }
             return false;
         }
-        /// <summary>
-        /// Copies the skip list contents onto the provided array.
-        /// </summary>
-        /// <param name="array">Array to hold the values from the list.</param>
-        /// <param name="arrayIndex">Index to start insertion in the array.</param>
-        public void CopyTo(T[] array, int arrayIndex)
-        {
-            NodeSet<T> node = head.Next[0];
-            while (node != end)
-            {
-                array[arrayIndex] = node.Key;
-                arrayIndex++;
-                node = node.Next[0];
-            }
-        }
-        /// <summary>
-        /// Copies the elements from the collection into an array.
-        /// </summary>
-        /// <returns>Array filled with elements from the collection.</returns>
-        public T[] ToArray()
-        {
-            T[] array = new T[count];
-            int index = 0;
-            NodeSet<T> curNode = head.Next[0];
-            while (curNode != end)
-            {
-                array[index] = curNode.Key;
-                index++;
-                curNode = curNode.Next[0];
-            }
-            return array;
-        }
-        /// <summary>
-        /// Enumerator that iterates over the collection.
-        /// </summary>
-        /// <returns></returns>
-        public IEnumerator<T> GetEnumerator()
-        {
-            NodeSet<T> curNode = head.Next[0];
-            while (curNode != end)
-            {
-                yield return curNode.Key;
-                curNode = curNode.Next[0];
-            }
-        }
-        #endregion
-        #region Private Methods
-        IEnumerator IEnumerable.GetEnumerator()
-        {
-            throw new NotImplementedException();
-        }
-        private NodeSet<T> Find(T key)
-        {
-            NodeSet<T> curNode = head;
-
-            for (int i = level; i >= 0; i--)
-            {
-                while (curNode.Next[i] != end)
-                {
-                    if (curNode.Next[i].Key.CompareTo(key) > 0)
-                    {
-                        break;
-                    }
-                    else if (curNode.Next[i].Key.CompareTo(key) == 0)
-                    {
-                        return curNode.Next[i];
-                    }
-                    curNode = curNode.Next[i];
-                }
-            }
-
-            curNode = curNode.Next[0];
-            if (curNode != end && curNode.Key.CompareTo(key) == 0)
-            {
-                return curNode;
-            }
-            return null;
-        }
-        #endregion
     }
+    /// <summary>
+    /// Clears the collection.
+    /// </summary>
+    public void Clear()
+    {
+        for (var i = 0; i < this.maxLevel; i++)
+        {
+            this.head.Next[i] = this.end;
+        }
+
+        this.count = 0;
+    }
+    /// <summary>
+    /// Checks if item is present in the collection.
+    /// </summary>
+    /// <param name="item">Item to be checked.</param>
+    /// <returns>True if item is present in the collection.</returns>
+    public bool Contains(T item)
+    {
+        if (this.Find(item) != null)
+        {
+            return true;
+        }
+
+        return false;
+    }
+    /// <summary>
+    /// Copies the skip list contents onto the provided array.
+    /// </summary>
+    /// <param name="array">Array to hold the values from the list.</param>
+    /// <param name="arrayIndex">Index to start insertion in the array.</param>
+    public void CopyTo(T[] array, int arrayIndex)
+    {
+        var node = this.head.Next[0];
+        while (node != this.end)
+        {
+            array[arrayIndex] = node.Key;
+            arrayIndex++;
+            node = node.Next[0];
+        }
+    }
+    /// <summary>
+    /// Copies the elements from the collection into an array.
+    /// </summary>
+    /// <returns>Array filled with elements from the collection.</returns>
+    public T[] ToArray()
+    {
+        var array = new T[this.count];
+        var index = 0;
+        var curNode = this.head.Next[0];
+        while (curNode != this.end)
+        {
+            array[index] = curNode.Key;
+            index++;
+            curNode = curNode.Next[0];
+        }
+
+        return array;
+    }
+    /// <summary>
+    /// Enumerator that iterates over the collection.
+    /// </summary>
+    /// <returns></returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        var curNode = this.head.Next[0];
+        while (curNode != this.end)
+        {
+            yield return curNode.Key;
+            curNode = curNode.Next[0];
+        }
+    }
+    #endregion
+    #region Private Methods
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    private NodeSet<T> Find(T key)
+    {
+        var curNode = this.head;
+
+        for (var i = this.level; i >= 0; i--)
+        {
+            while (curNode.Next[i] != this.end)
+            {
+                if (curNode.Next[i].Key.CompareTo(key) > 0)
+                {
+                    break;
+                }
+                else if (curNode.Next[i].Key.CompareTo(key) == 0)
+                {
+                    return curNode.Next[i];
+                }
+
+                curNode = curNode.Next[i];
+            }
+        }
+
+        curNode = curNode.Next[0];
+        if (curNode != this.end && curNode.Key.CompareTo(key) == 0)
+        {
+            return curNode;
+        }
+
+        return default!;
+    }
+    #endregion
 }

SystemExtensions.NetStandard/Collections/Treap.cs

@@ -1,280 +1,287 @@
-namespace System.Collections.Generic
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Treap implementation.
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+[Serializable]
+public sealed class Treap<T> : ICollection<T> where T : IComparable<T>
 {
-    /// <summary>
-    /// Treap implementation.
-    /// </summary>
-    /// <typeparam name="T">Provided type.</typeparam>
+    #region Fields
     [Serializable]
-    public sealed class Treap<T> : ICollection<T> where T : IComparable<T>
+    private class Node<TKey>
     {
-        #region Fields
-        [Serializable]
-        private class Node<TKey>
+        public TKey Key;
+        public int Priority;
+        public Node<TKey>? Left, Right;
+        public Node(TKey key, int priority)
         {
-            public TKey Key;
-            public int Priority;
-            public Node<TKey> Left, Right;
-            public Node(TKey key, int priority)
-            {
-                Key = key;
-                Priority = priority;
-                Left = null;
-                Right = null;
-            }
+            this.Key = key;
+            this.Priority = priority;
+            this.Left = null;
+            this.Right = null;
         }
-        private readonly Random randomGen;
-        private Node<T> root;
-        private int count;
-        #endregion
-        #region Properties
-        /// <summary>
-        /// Count of values in the treap.
-        /// </summary>
-        public int Count
-        {
-            get
-            {
-                return count;
-            }
-        }
-        /// <summary>
-        /// Not implemented.
-        /// </summary>
-        public bool IsReadOnly => false;
-        #endregion
-        #region Constructors
-        /// <summary>
-        /// Constructor for treap.
-        /// </summary>
-        public Treap()
-        {
-            randomGen = new Random();
-        }
-        #endregion
-        #region Public Methods
-        /// <summary>
-        /// Adds value to the treap.
-        /// </summary>
-        /// <param name="value">Value to be added.</param>
-        public void Add(T value)
-        {
-            root = InsertNode(root, value);
-            count++;
-        }
-        /// <summary>
-        /// Removes value from treap.
-        /// </summary>
-        /// <param name="value">Value to be removed.</param>
-        public bool Remove(T value)
-        {
-            root = RemoveNode(root, value);
-            count--;
-            return true;
-        }
-        /// <summary>
-        /// Clears the treap.
-        /// </summary>
-        public void Clear()
-        {
-            Clear(root);
-            root = null;
-            count = 0;
-        }
-        /// <summary>
-        /// Determines whether the treap contains the specified value.
-        /// </summary>
-        /// <param name="value">Value to locate in the treap.</param>
-        /// <returns></returns>
-        public bool Contains(T value)
-        {
-            return Find(root, value) != null;
-        }
-        /// <summary>
-        /// Returns the treap structure as an ordered array.
-        /// </summary>
-        /// <returns>Ordered array containing the values stored in the treap.</returns>
-        public T[] ToArray()
-        {
-            if (root != null)
-            {
-                T[] array = new T[count];
-                int index = 0;
-                ToArray(root, ref array, ref index);
-                return array;
-            }
-            else
-            {
-                return null;
-            }
-        }
-        /// <summary>
-        /// Copy the treap into the provided array.
-        /// </summary>
-        /// <param name="array">Array to be populated with the values contained in the array.</param>
-        /// <param name="arrayIndex">Starting index of the array.</param>
-        public void CopyTo(T[] array, int arrayIndex)
-        {
-            ToArray(root, ref array, ref arrayIndex);
-        }
-        /// <summary>
-        /// Enumerator that iterates over the treap. Note that the values are not guaranteed to be sorted.
-        /// </summary>
-        /// <returns>Enumerator that iterates over the treap.</returns>
-        public IEnumerator<T> GetEnumerator()
-        {
-            return GetEnumerator(root);
-        }
-        #endregion
-        #region Private Methods
-        private Node<T> InsertNode(Node<T> node, T key)
-        {
-            if (node == null)
-            {
-                node = new Node<T>(key, randomGen.Next(0, 100));
-                return node;
-            }
-            else if (key.CompareTo(node.Key) <= 0)
-            {
-                node.Left = InsertNode(node.Left, key);
-                if (node.Left.Priority > node.Priority)
-                {
-                    node = RotateRight(node);
-                }
-            }
-            else
-            {
-                node.Right = InsertNode(node.Right, key);
-                if (node.Right.Priority > node.Priority)
-                {
-                    node = RotateLeft(node);
-                }
-            }
-            return node;
-        }
-        private Node<T> RemoveNode(Node<T> node, T key)
-        {
-            if (node == null)
-            {
-                return node;
-            }
-            if (key.CompareTo(node.Key) < 0)
-            {
-                node.Left = RemoveNode(node.Left, key);
-            }
-            else if (key.CompareTo(node.Key) > 0)
-            {
-                node.Right = RemoveNode(node.Right, key);
-            }
-            else if (node.Left == null)
-            {
-                node = node.Right;
-            }
-            else if (node.Right == null)
-            {
-                node = node.Left;
-            }
-            else if (node.Left.Priority < node.Right.Priority)
-            {
-                node = RotateLeft(node);
-                node.Left = RemoveNode(node.Left, key);
-            }
-            else
-            {
-                node = RotateRight(node);
-                node.Right = RemoveNode(node.Right, key);
-            }
-            return node;
-        }
-        private Node<T> RotateRight(Node<T> node)
-        {
-            Node<T> temp = node.Left, temp2 = temp.Right;
-            temp.Right = node;
-            node.Left = temp2;
-            return temp;
-        }
-        private Node<T> RotateLeft(Node<T> node)
-        {
-            Node<T> temp = node.Right, temp2 = temp.Left;
-            temp.Left = node;
-            node.Right = temp2;
-            return temp;
-        }
-        private void Clear(Node<T> node)
-        {
-            if (node.Left != null)
-            {
-                Clear(node.Left);
-            }
-            if (node.Right != null)
-            {
-                Clear(node.Right);
-            }
-            node.Left = node.Right = null;
-        }
-        private Node<T> Find(Node<T> node, T key)
-        {
-            if (node == null)
-            {
-                return node;
-            }
-            else
-            {
-                if (node.Key.CompareTo(key) < 0)
-                {
-                    Node<T> found = Find(node.Left, key);
-                    if (found == null)
-                    {
-                        found = Find(node.Right, key);
-                    }
-                    return found;
-                }
-                else if (node.Key.CompareTo(key) > 0)
-                {
-                    Node<T> found = Find(node.Right, key);
-                    if (found == null)
-                    {
-                        found = Find(node.Left, key);
-                    }
-                    return found;
-                }
-                else
-                {
-                    return node;
-                }
-            }
-        }
-        private void ToArray(Node<T> node, ref T[] array, ref int index)
-        {
-            if (node != null)
-            {
-                ToArray(node.Left, ref array, ref index);
-                array[index] = node.Key;
-                index++;
-                ToArray(node.Right, ref array, ref index);
-            }
-        }
-        private IEnumerator<T> GetEnumerator(Node<T> currentNode)
-        {
-            Queue<Node<T>> queue = new Queue<Node<T>>();
-            queue.Enqueue(currentNode);
-            while (queue.Count > 0)
-            {
-                currentNode = queue.Dequeue();
-                yield return currentNode.Key;
-                if (currentNode.Left != null)
-                {
-                    queue.Enqueue(currentNode.Left);
-                }
-                if (currentNode.Right != null)
-                {
-                    queue.Enqueue(currentNode.Right);
-                }
-            }
-        }
-        IEnumerator IEnumerable.GetEnumerator()
-        {
-            throw new NotImplementedException();
-        }
-        #endregion
     }
+    private readonly Random randomGen;
+    private Node<T> root = default!;
+    private int count;
+    #endregion
+    #region Properties
+    /// <summary>
+    /// Count of values in the treap.
+    /// </summary>
+    public int Count
+    {
+        get
+        {
+            return this.count;
+        }
+    }
+    /// <summary>
+    /// Not implemented.
+    /// </summary>
+    public bool IsReadOnly => false;
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Constructor for treap.
+    /// </summary>
+    public Treap()
+    {
+        this.randomGen = new Random();
+    }
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Adds value to the treap.
+    /// </summary>
+    /// <param name="value">Value to be added.</param>
+    public void Add(T value)
+    {
+        this.root = this.InsertNode(this.root, value);
+        this.count++;
+    }
+    /// <summary>
+    /// Removes value from treap.
+    /// </summary>
+    /// <param name="value">Value to be removed.</param>
+    public bool Remove(T value)
+    {
+        this.root = this.RemoveNode(this.root, value);
+        this.count--;
+        return true;
+    }
+    /// <summary>
+    /// Clears the treap.
+    /// </summary>
+    public void Clear()
+    {
+        this.Clear(this.root);
+        this.root = default!;
+        this.count = 0;
+    }
+    /// <summary>
+    /// Determines whether the treap contains the specified value.
+    /// </summary>
+    /// <param name="value">Value to locate in the treap.</param>
+    /// <returns></returns>
+    public bool Contains(T value)
+    {
+        return this.Find(this.root, value) != null;
+    }
+    /// <summary>
+    /// Returns the treap structure as an ordered array.
+    /// </summary>
+    /// <returns>Ordered array containing the values stored in the treap.</returns>
+    public T[]? ToArray()
+    {
+        if (this.root != null)
+        {
+            var array = new T[this.count];
+            var index = 0;
+            this.ToArray(this.root, ref array, ref index);
+            return array;
+        }
+        else
+        {
+            return default!;
+        }
+    }
+    /// <summary>
+    /// Copy the treap into the provided array.
+    /// </summary>
+    /// <param name="array">Array to be populated with the values contained in the array.</param>
+    /// <param name="arrayIndex">Starting index of the array.</param>
+    public void CopyTo(T[] array, int arrayIndex)
+    {
+        this.ToArray(this.root, ref array, ref arrayIndex);
+    }
+    /// <summary>
+    /// Enumerator that iterates over the treap. Note that the values are not guaranteed to be sorted.
+    /// </summary>
+    /// <returns>Enumerator that iterates over the treap.</returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        return this.GetEnumerator(this.root);
+    }
+    #endregion
+    #region Private Methods
+    private Node<T> InsertNode(Node<T> node, T key)
+    {
+        if (node == null)
+        {
+            node = new Node<T>(key, this.randomGen.Next(0, 100));
+            return node;
+        }
+        else if (key.CompareTo(node.Key) <= 0)
+        {
+            node.Left = this.InsertNode(node.Left!, key);
+            if (node.Left!.Priority > node.Priority)
+            {
+                node = this.RotateRight(node);
+            }
+        }
+        else
+        {
+            node.Right = this.InsertNode(node.Right!, key);
+            if (node.Right!.Priority > node.Priority)
+            {
+                node = this.RotateLeft(node);
+            }
+        }
+
+        return node;
+    }
+    private Node<T> RemoveNode(Node<T> node, T key)
+    {
+        if (node == null)
+        {
+            return node!;
+        }
+
+        if (key.CompareTo(node.Key) < 0)
+        {
+            node.Left = this.RemoveNode(node.Left!, key);
+        }
+        else if (key.CompareTo(node.Key) > 0)
+        {
+            node.Right = this.RemoveNode(node.Right!, key);
+        }
+        else if (node.Left == null)
+        {
+            node = node.Right!;
+        }
+        else if (node.Right == null)
+        {
+            node = node.Left;
+        }
+        else if (node.Left.Priority < node.Right.Priority)
+        {
+            node = this.RotateLeft(node);
+            node.Left = this.RemoveNode(node.Left!, key);
+        }
+        else
+        {
+            node = this.RotateRight(node);
+            node.Right = this.RemoveNode(node.Right!, key);
+        }
+
+        return node;
+    }
+    private Node<T> RotateRight(Node<T> node)
+    {
+        Node<T> temp = node.Left!, temp2 = temp.Right!;
+        temp.Right = node;
+        node.Left = temp2;
+        return temp;
+    }
+    private Node<T> RotateLeft(Node<T> node)
+    {
+        Node<T> temp = node.Right!, temp2 = temp.Left!;
+        temp.Left = node;
+        node.Right = temp2;
+        return temp;
+    }
+    private void Clear(Node<T> node)
+    {
+        if (node.Left != null)
+        {
+            this.Clear(node.Left);
+        }
+
+        if (node.Right != null)
+        {
+            this.Clear(node.Right);
+        }
+
+        node.Left = node.Right = null;
+    }
+    private Node<T> Find(Node<T> node, T key)
+    {
+        if (node == null)
+        {
+            return node!;
+        }
+        else
+        {
+            if (node.Key.CompareTo(key) < 0)
+            {
+                var found = this.Find(node.Left!, key);
+                if (found == null)
+                {
+                    found = this.Find(node.Right!, key);
+                }
+
+                return found;
+            }
+            else if (node.Key.CompareTo(key) > 0)
+            {
+                var found = this.Find(node.Right!, key);
+                if (found == null)
+                {
+                    found = this.Find(node.Left!, key);
+                }
+
+                return found;
+            }
+            else
+            {
+                return node;
+            }
+        }
+    }
+    private void ToArray(Node<T> node, ref T[] array, ref int index)
+    {
+        if (node != null)
+        {
+            this.ToArray(node.Left!, ref array, ref index);
+            array[index] = node.Key;
+            index++;
+            this.ToArray(node.Right!, ref array, ref index);
+        }
+    }
+    private IEnumerator<T> GetEnumerator(Node<T> currentNode)
+    {
+        var queue = new Queue<Node<T>>();
+        queue.Enqueue(currentNode);
+        while (queue.Count > 0)
+        {
+            currentNode = queue.Dequeue();
+            yield return currentNode.Key;
+            if (currentNode.Left != null)
+            {
+                queue.Enqueue(currentNode.Left);
+            }
+
+            if (currentNode.Right != null)
+            {
+                queue.Enqueue(currentNode.Right);
+            }
+        }
+    }
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    #endregion
 }

SystemExtensions.NetStandard/Encoding/Base32.cs

@@ -0,0 +1,128 @@
+namespace System.Extensions;
+
+/// <summary>
+/// https://stackoverflow.com/questions/641361/base32-decoding
+/// </summary>
+public static partial class Convert
+{
+    public static byte[] FromBase32String(string input)
+    {
+        if (string.IsNullOrEmpty(input))
+        {
+            throw new ArgumentNullException("input");
+        }
+
+        input = input.TrimEnd('='); //remove padding characters
+        var byteCount = input.Length * 5 / 8; //this must be TRUNCATED
+        var returnArray = new byte[byteCount];
+
+        byte curByte = 0, bitsRemaining = 8;
+        int arrayIndex = 0;
+
+        foreach (var c in input)
+        {
+            var cValue = CharToValue(c);
+            int mask;
+            if (bitsRemaining > 5)
+            {
+                mask = cValue << (bitsRemaining - 5);
+                curByte = (byte)(curByte | mask);
+                bitsRemaining -= 5;
+            }
+            else
+            {
+                mask = cValue >> (5 - bitsRemaining);
+                curByte = (byte)(curByte | mask);
+                returnArray[arrayIndex++] = curByte;
+                curByte = (byte)(cValue << (3 + bitsRemaining));
+                bitsRemaining += 3;
+            }
+        }
+
+        //if we didn't end with a full byte
+        if (arrayIndex != byteCount)
+        {
+            returnArray[arrayIndex] = curByte;
+        }
+
+        return returnArray;
+    }
+
+    public static string ToBase32String(byte[] input)
+    {
+        if (input == null || input.Length == 0)
+        {
+            throw new ArgumentNullException("input");
+        }
+
+        var charCount = (int)Math.Ceiling(input.Length / 5d) * 8;
+        var returnArray = new char[charCount];
+
+        byte nextChar = 0, bitsRemaining = 5;
+        var arrayIndex = 0;
+
+        foreach (var b in input)
+        {
+            nextChar = (byte)(nextChar | (b >> (8 - bitsRemaining)));
+            returnArray[arrayIndex++] = ValueToChar(nextChar);
+
+            if (bitsRemaining < 4)
+            {
+                nextChar = (byte)((b >> (3 - bitsRemaining)) & 31);
+                returnArray[arrayIndex++] = ValueToChar(nextChar);
+                bitsRemaining += 5;
+            }
+
+            bitsRemaining -= 3;
+            nextChar = (byte)((b << bitsRemaining) & 31);
+        }
+
+        //if we didn't end with a full char
+        if (arrayIndex != charCount)
+        {
+            returnArray[arrayIndex++] = ValueToChar(nextChar);
+            while (arrayIndex != charCount) returnArray[arrayIndex++] = '='; //padding
+        }
+
+        return new string(returnArray);
+    }
+
+    private static int CharToValue(char c)
+    {
+        var value = (int)c;
+
+        //65-90 == uppercase letters
+        if (value < 91 && value > 64)
+        {
+            return value - 65;
+        }
+        //50-55 == numbers 2-7
+        if (value < 56 && value > 49)
+        {
+            return value - 24;
+        }
+        //97-122 == lowercase letters
+        if (value < 123 && value > 96)
+        {
+            return value - 97;
+        }
+
+        throw new ArgumentException($"Character {c} is not a Base32 character.");
+    }
+
+    private static char ValueToChar(byte b)
+    {
+        if (b < 26)
+        {
+            return (char)(b + 65);
+        }
+
+        if (b < 32)
+        {
+            return (char)(b + 24);
+        }
+
+        throw new ArgumentException($"Byte {b} is not a value Base32 value.");
+    }
+
+}

SystemExtensions.NetStandard/Extensions/BytesExtensions.cs

@@ -1,24 +1,24 @@
 using System.IO;
 
-namespace System.Extensions
+namespace System.Extensions;
+
+public static class BytesExtensions
 {
-    public static class BytesExtensions
+    public static byte[] ReadAllBytes(this Stream stream)
     {
-        public static byte[] ReadAllBytes(this Stream stream)
+        if (stream is null)
         {
-            if (stream is null) throw new ArgumentNullException(nameof(stream));
-
-            var buffer = new byte[256];
-            using (MemoryStream ms = new MemoryStream())
-            {
-                int read;
-                while ((read = stream.Read(buffer, 0, 256)) > 0)
-                {
-                    ms.Write(buffer, 0, read);
-                }
-
-                return ms.ToArray();
-            }
+            throw new ArgumentNullException(nameof(stream));
         }
+
+        var buffer = new byte[256];
+        using var ms = new MemoryStream();
+        int read;
+        while ((read = stream.Read(buffer, 0, 256)) > 0)
+        {
+            ms.Write(buffer, 0, read);
+        }
+
+        return ms.ToArray();
     }
 }

SystemExtensions.NetStandard/Extensions/CastExtensions.cs

@@ -1,50 +1,49 @@
-namespace System.Extensions
+namespace System.Extensions;
+
+public static class CastExtensions
 {
-    public static class CastExtensions
+    public static int Floor(this double value)
     {
-        public static int Floor(this double value)
-        {
-            return (int)Math.Floor(value);
-        }
+        return (int)Math.Floor(value);
+    }
 
-        public static int Ceiling(this double value)
-        {
-            return (int)Math.Ceiling(value);
-        }
+    public static int Ceiling(this double value)
+    {
+        return (int)Math.Ceiling(value);
+    }
 
-        public static int Round(this double value)
-        {
-            return (int)Math.Round(value);
-        }
+    public static int Round(this double value)
+    {
+        return (int)Math.Round(value);
+    }
 
-        public static int Floor(this float value)
-        {
-            return (int)Math.Floor(value);
-        }
+    public static int Floor(this float value)
+    {
+        return (int)Math.Floor(value);
+    }
 
-        public static int Ceiling(this float value)
-        {
-            return (int)Math.Ceiling(value);
-        }
+    public static int Ceiling(this float value)
+    {
+        return (int)Math.Ceiling(value);
+    }
 
-        public static int Round(this float value)
-        {
-            return (int)Math.Round(value);
-        }
+    public static int Round(this float value)
+    {
+        return (int)Math.Round(value);
+    }
 
-        public static int ToInt(this double value)
-        {
-            return (int)value;
-        }
+    public static int ToInt(this double value)
+    {
+        return (int)value;
+    }
 
-        public static int ToInt(this float value)
-        {
-            return (int)value;
-        }
+    public static int ToInt(this float value)
+    {
+        return (int)value;
+    }
 
-        public static int ToInt(this decimal value)
-        {
-            return (int)value;
-        }
+    public static int ToInt(this decimal value)
+    {
+        return (int)value;
     }
 }

SystemExtensions.NetStandard/Extensions/LinqExtensions.cs

@@ -1,71 +1,88 @@
 using System.Collections.Generic;
 using System.Linq;
 
-namespace System.Extensions
+namespace System.Extensions;
+
+public static class LinqExtensions
 {
-    public static class LinqExtensions
+    public static bool None<T>(this IEnumerable<T> enumerable, Func<T, bool> predicate)
     {
-        public static bool None<T>(this IEnumerable<T> enumerable, Func<T, bool> predicate)
-        {
-            enumerable.ThrowIfNull(nameof(enumerable));
-            predicate.ThrowIfNull(nameof(predicate));
+        enumerable.ThrowIfNull(nameof(enumerable));
+        predicate.ThrowIfNull(nameof(predicate));
 
-            return !enumerable.Any(predicate);
+        return !enumerable.Any(predicate);
+    }
+
+    public static bool None<T>(this IEnumerable<T> enumerable)
+    {
+        enumerable.ThrowIfNull(nameof(enumerable));
+
+        return !enumerable.Any();
+    }
+
+    public static ICollection<T> ClearAnd<T>(this ICollection<T> collection)
+    {
+        if (collection is null)
+        {
+            throw new ArgumentNullException(nameof(collection));
         }
 
-        public static bool None<T>(this IEnumerable<T> enumerable)
+        collection.Clear();
+        return collection;
+    }
+    
+    public static ICollection<T> AddRange<T>(this ICollection<T> collection, IEnumerable<T> values)
+    {
+        if (collection is null)
         {
-            enumerable.ThrowIfNull(nameof(enumerable));
-
-            return !enumerable.Any();
+            throw new ArgumentNullException(nameof(collection));
         }
 
-        public static ICollection<T> ClearAnd<T>(this ICollection<T> collection)
+        if (values is null)
         {
-            if (collection is null) throw new ArgumentNullException(nameof(collection));
-
-            collection.Clear();
-            return collection;
+            throw new ArgumentNullException(nameof(values));
         }
-        
-        public static ICollection<T> AddRange<T>(this ICollection<T> collection, IEnumerable<T> values)
-        {
-            if (collection is null) throw new ArgumentNullException(nameof(collection));
-            if (values is null) throw new ArgumentNullException(nameof(values));
 
-            foreach(var item in values)
+        foreach (var item in values)
+        {
+            collection.Add(item);
+        }
+
+        return collection;
+    }
+
+    public static int IndexOfWhere<T>(this ICollection<T> collection, Func<T, bool> selector)
+    {
+        if (collection is null)
+        {
+            throw new ArgumentNullException(nameof(collection));
+        }
+
+        if (selector is null)
+        {
+            throw new ArgumentNullException(nameof(selector));
+        }
+
+        var index = 0;
+        foreach (var item in collection)
+        {
+            if (selector(item))
             {
-                collection.Add(item);
+                return index;
             }
 
-            return collection;
+            index++;
         }
 
-        public static int IndexOfWhere<T>(this ICollection<T> collection, Func<T, bool> selector)
+        return -1;
+    }
+
+    public static IEnumerable<T> Do<T>(this IEnumerable<T> enumerable, Action<T> action)
+    {
+        foreach(var value in enumerable)
         {
-            if (collection is null) throw new ArgumentNullException(nameof(collection));
-            if (selector is null) throw new ArgumentNullException(nameof(selector));
-
-            var index = 0;
-            foreach (var item in collection)
-            {
-                if (selector(item))
-                {
-                    return index;
-                }
-                index++;
-            }
-
-            return -1;
-        }
-
-        public static IEnumerable<T> Do<T>(this IEnumerable<T> enumerable, Action<T> action)
-        {
-            foreach(var value in enumerable)
-            {
-                action(value);
-                yield return value;
-            }
+            action(value);
+            yield return value;
         }
     }
 }

SystemExtensions.NetStandard/Extensions/LoggingExtensions.cs

@@ -0,0 +1,17 @@
+using Microsoft.Extensions.Logging;
+using System.Logging;
+
+namespace System.Extensions;
+
+public static class LoggingExtensions
+{
+    public static ScopedLogger<T> CreateScopedLogger<T>(this ILogger<T> logger, string methodName, string flowIdentifier)
+    {
+        return ScopedLogger<T>.Create(logger, methodName, flowIdentifier);
+    }
+
+    public static ScopedLogger<T> CreateScopedLogger<T>(this ILogger<T> logger, string methodName)
+    {
+        return ScopedLogger<T>.Create(logger, methodName, string.Empty);
+    }
+}

SystemExtensions.NetStandard/Extensions/ObjectExtensions.cs

@@ -1,32 +1,29 @@
-namespace System.Extensions
+namespace System.Extensions;
+
+public static class ObjectExtensions
 {
-    public static class ObjectExtensions
+    public static T Cast<T>(this object obj)
     {
-        public static T Cast<T>(this object obj)
+        return (T)obj;
+    }
+
+    public static T? As<T>(this object obj) where T : class
+    {
+        return obj as T;
+    }
+
+    public static T ThrowIfNull<T>([ValidatedNotNull] this T? obj, string name) where T : class
+    {
+        if (obj is null)
         {
-            return (T)obj;
+            throw new ArgumentNullException(name);
         }
 
-        public static T As<T>(this object obj) where T : class
-        {
-            return obj as T;
-        }
+        return obj;
+    }
 
-        public static Optional<T> ToOptional<T>(this T obj)
-        {
-            return Optional.FromValue(obj);
-        }
-
-        public static T ThrowIfNull<T>([ValidatedNotNull] this T obj, string name) where T : class
-        {
-            if (obj is null) throw new ArgumentNullException(name);
-
-            return obj;
-        }
-
-        [AttributeUsage(AttributeTargets.Parameter)]
-        sealed class ValidatedNotNullAttribute : Attribute
-        {
-        }
+    [AttributeUsage(AttributeTargets.Parameter)]
+    sealed class ValidatedNotNullAttribute : Attribute
+    {
     }
 }

SystemExtensions.NetStandard/Extensions/Optional.cs

@@ -1,178 +0,0 @@
-namespace System.Extensions
-{
-    public static class Optional
-    {
-        public static Optional<T> None<T>()
-        {
-            return new Optional<T>.None();
-        }
-
-        public static Optional<T> FromValue<T>(T value)
-        {
-            if (value == null)
-            {
-                return new Optional<T>.None();
-            }
-
-            return new Optional<T>.Some(value);
-        }
-    }
-
-    public abstract class Optional<T> : IEquatable<Optional<T>>
-    {
-        public Optional(T value)
-        {
-            this.Value = value;
-        }
-
-        private T Value { get; }
-
-        public T ExtractValue()
-        {
-            if (this is None)
-            {
-                return default;
-            }
-            else
-            {
-                return Value;
-            }
-        }
-        public Optional<T> Do(Action<T> onSome, Action onNone)
-        {
-            if (onSome is null) throw new ArgumentNullException(nameof(onSome));
-            if (onNone is null) throw new ArgumentNullException(nameof(onNone));
-
-            if (this is Some)
-            {
-                onSome.Invoke(this.Value);
-            }
-            else
-            {
-                onNone.Invoke();
-            }
-            return this;
-        }
-        public Optional<T> DoAny(Action<T> onSome = null, Action onNone = null)
-        {
-            if (this is Some)
-            {
-                onSome?.Invoke(this.Value);
-            }
-            else
-            {
-                onNone?.Invoke();
-            }
-            return this;
-        }
-        public Optional<V> Switch<V>(Func<T, V> onSome, Func<V> onNone)
-        {
-            if (onSome is null) throw new ArgumentNullException($"{nameof(onSome)}");
-            if (onNone is null) throw new ArgumentNullException($"{nameof(onNone)}");
-
-            if (this is Some)
-            {
-                return Optional.FromValue(onSome.Invoke(this.Value));
-            }
-            else
-            {
-                return Optional.FromValue(onNone.Invoke());
-            }
-        }
-        public Optional<V> SwitchAny<V>(Func<T, V> onSome = null, Func<V> onNone = null)
-        {
-            if (this is Some)
-            {
-                return onSome != null ? Optional.FromValue(onSome.Invoke(this.Value)) : Optional.FromValue(default(V));
-            }
-            else
-            {
-                return onNone != null ? Optional.FromValue(onNone.Invoke()) : Optional.FromValue(default(V));
-            }
-        }
-
-        public override bool Equals(object obj)
-        {
-            if (obj is Optional<T>)
-            {
-                return this.Equals(obj);
-            }
-
-            return base.Equals(obj);
-        }
-
-        public bool Equals(Optional<T> other)
-        {
-            if (this is Some && other is Some)
-            {
-                return this.As<Some>().Equals(other.As<Some>());
-            }
-
-            return false;
-        }
-
-        public static implicit operator Optional<T>(T value)
-        {
-            return Optional.FromValue(value);
-        }
-
-        public override int GetHashCode()
-        {
-            return this.Value == null ? base.GetHashCode() : this.Value.GetHashCode();
-        }
-
-        internal class Some : Optional<T>, IEquatable<Some>
-        {
-            public Some(T value) : base(value)
-            {
-            }
-
-            public override bool Equals(object obj)
-            {
-                if (obj is Some)
-                {
-                    return this.Equals(obj.As<Some>());
-                }
-
-                return base.Equals(obj);
-            }
-
-            public bool Equals(Some other)
-            {
-                if (other is None)
-                {
-                    return false;
-                }
-
-                if (other is Some)
-                {
-                    return this.Value.Equals(other.Value);
-                }
-
-                return false;
-            }
-
-            public static bool operator ==(Some left, Some right)
-            {
-                return left?.Equals(right) == true;
-            }
-
-            public static bool operator !=(Some left, Some right)
-            {
-                return left?.Equals(right) != true;
-            }
-
-            public override int GetHashCode()
-            {
-                return this.Value is object ? this.Value.GetHashCode() : this.As<object>().GetHashCode();
-            }
-        }
-
-        internal class None : Optional<T>
-        {
-            public None() : base(default)
-            {
-            }
-        }
-    }
-}

SystemExtensions.NetStandard/Extensions/Result.cs

@@ -1,185 +0,0 @@
-namespace System.Extensions
-{
-    public class Result<TSuccess, TFailure>
-    {
-        private readonly object value;
-
-        public Result(TSuccess successValue)
-        {
-            value = successValue;
-        }
-        public Result(TFailure failureValue)
-        {
-            value = failureValue;
-        }
-
-        public bool TryExtractSuccess(out TSuccess successValue)
-        {
-
-            if (value is TSuccess success)
-            {
-                successValue = success;
-                return true;
-            }
-            else
-            {
-                successValue = default;
-                return false;
-            }
-        }
-        public bool TryExtractFailure(out TFailure failureValue)
-        {
-
-            if (value is TFailure failure)
-            {
-                failureValue = failure;
-                return true;
-            }
-            else
-            {
-                failureValue = default;
-                return false;
-            }
-        }
-        public Result<TSuccess, TFailure> Do(Action onSuccess, Action onFailure)
-        {
-            if (onSuccess is null) throw new ArgumentNullException(nameof(onSuccess));
-
-            if (onFailure is null) throw new ArgumentNullException(nameof(onFailure));
-
-            if (value is TSuccess)
-            {
-                onSuccess.Invoke();
-            }
-            else if (value is TFailure)
-            {
-                onFailure.Invoke();
-            }
-            return this;
-        }
-        public Result<TSuccess, TFailure> DoAny(Action onSuccess = null, Action onFailure = null)
-        {
-            if (value is TSuccess)
-            {
-                onSuccess?.Invoke();
-            }
-            else if (value is TFailure)
-            {
-                onFailure?.Invoke();
-            }
-            return this;
-        }
-        public Result<TSuccess, TFailure> Do(Action<TSuccess> onSuccess, Action<TFailure> onFailure)
-        {
-            if (onSuccess is null) throw new ArgumentNullException(nameof(onSuccess));
-
-            if (onFailure is null) throw new ArgumentNullException(nameof(onFailure));
-
-            if (value is TSuccess success)
-            {
-                onSuccess.Invoke(success);
-            }
-            else if (value is TFailure failure)
-            {
-                onFailure.Invoke(failure);
-            }
-            return this;
-        }
-        public Result<TSuccess, TFailure> DoAny(Action<TSuccess> onSuccess = null, Action<TFailure> onFailure = null)
-        {
-            if (value is TSuccess success)
-            {
-                onSuccess?.Invoke(success);
-            }
-            else if (value is TFailure failure)
-            {
-                onFailure?.Invoke(failure);
-            }
-            return this;
-        }
-        public T Switch<T>(Func<TSuccess, T> onSuccess, Func<TFailure, T> onFailure)
-        {
-            if (onSuccess is null) throw new ArgumentNullException(nameof(onSuccess));
-
-            if (onFailure is null) throw new ArgumentNullException(nameof(onFailure));
-
-            if (value is TSuccess success)
-            {
-                return onSuccess.Invoke(success);
-            }
-            else if (value is TFailure failure)
-            {
-                return onFailure.Invoke(failure);
-            }
-            throw new InvalidOperationException($"{nameof(value)} must be of type {typeof(TSuccess)} or {typeof(TFailure)} in order to switch to {typeof(T)}");
-        }
-        public T SwitchAny<T>(Func<TSuccess, T> onSuccess = null, Func<TFailure, T> onFailure = null)
-        {
-            if (value is TSuccess success)
-            {
-                return onSuccess is null ? default : onSuccess.Invoke(success);
-            }
-            else if (value is TFailure failure)
-            {
-                return onFailure is null ? default : onFailure.Invoke(failure);
-            }
-            throw new InvalidOperationException($"{nameof(value)} must be of type {typeof(TSuccess)} or {typeof(TFailure)} in order to switch to {typeof(T)}");
-        }
-        public Result<V, K> Switch<V, K>(Func<TSuccess, V> onSuccess, Func<TFailure, K> onFailure)
-        {
-            if (onSuccess is null) throw new ArgumentNullException(nameof(onSuccess));
-
-            if (onFailure is null) throw new ArgumentNullException(nameof(onFailure));
-
-            if (value is TSuccess success)
-            {
-                return Result<V, K>.Success(onSuccess.Invoke(success));
-            }
-            else if (value is TFailure failure)
-            {
-                return Result<V, K>.Failure(onFailure.Invoke(failure));
-            }
-            throw new InvalidOperationException($"{nameof(value)} must be of type {typeof(TSuccess)} or {typeof(TFailure)} in order to switch to Result of type {typeof(V)} or {typeof(K)}");
-        }
-        public Result<V, K> SwitchAny<V, K>(Func<TSuccess, V> onSuccess, Func<TFailure, K> onFailure)
-        {
-            if (value is TSuccess success)
-            {
-                return Result<V, K>.Success(onSuccess is null ? default : onSuccess.Invoke(success));
-            }
-            else if (value is TFailure failure)
-            {
-                return Result<V, K>.Failure(onFailure is null ? default : onFailure.Invoke(failure));
-            }
-            throw new InvalidOperationException($"{nameof(value)} must be of type {typeof(TSuccess)} or {typeof(TFailure)} in order to switch to Result of type {typeof(V)} or {typeof(K)}");
-        }
-        public Optional<TSuccess> ToOptional()
-        {
-            if (value is TSuccess)
-            {
-                return Optional.FromValue(value.Cast<TSuccess>());
-            }
-
-            return Optional.None<TSuccess>();
-        }
-
-        public static implicit operator Result<TSuccess, TFailure>(TSuccess success)
-        {
-            return Success(success);
-        }
-
-        public static implicit operator Result<TSuccess, TFailure>(TFailure failure)
-        {
-            return Failure(failure);
-        }
-
-        public static Result<TSuccess, TFailure> Success(TSuccess value)
-        {
-            return new Result<TSuccess, TFailure>(value);
-        }
-        public static Result<TSuccess, TFailure> Failure(TFailure value)
-        {
-            return new Result<TSuccess, TFailure>(value);
-        }
-    }
-}

SystemExtensions.NetStandard/Extensions/SemaphoreSlimExtensions.cs

@@ -0,0 +1,16 @@
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace System.Extensions;
+public static class SemaphoreSlimExtensions
+{
+    public static async Task<SemaphoreSlimContext> Acquire(this SemaphoreSlim semaphore)
+    {
+        return await SemaphoreSlimContext.Create(semaphore);
+    }
+
+    public static async Task<SemaphoreSlimContext> Acquire(this SemaphoreSlim semaphore, CancellationToken cancellationToken)
+    {
+        return await SemaphoreSlimContext.Create(semaphore, cancellationToken);
+    }
+}

SystemExtensions.NetStandard/Extensions/StreamExtensions.cs

@@ -1,67 +1,63 @@
 using System.IO;
 using System.Text;
 
-namespace System.Extensions
+namespace System.Extensions;
+
+public static class StreamExtensions
 {
-    public static class StreamExtensions
+    public static byte[] ReadBytes(this Stream stream, int count)
     {
-        public static void DoWhileReading(this Stream stream, Action<int, byte[]> action, int bufferLength = 256)
+        if (stream is null)
         {
-            if (stream is null) throw new ArgumentNullException(nameof(stream));
-            if (action is null) throw new ArgumentNullException(nameof(action));
+            throw new ArgumentNullException(nameof(stream));
+        }
 
-            var buffer = new byte[bufferLength];
-            var read = stream.Read(buffer, 0, bufferLength);
-            while(read > 0)
+        var buffer = new byte[count];
+        stream.Read(buffer, 0, count);
+        return buffer;
+    }
+
+    public static Stream Rewind(this Stream stream)
+    {
+        if (stream is null)
+        {
+            throw new ArgumentNullException(nameof(stream));
+        }
+
+        if (!stream.CanSeek)
+        {
+            throw new InvalidOperationException("Stream doesn't support rewinding");
+        }
+
+        stream.Seek(0, SeekOrigin.Begin);
+        return stream;
+    }
+
+    public static string ReadUntil(this StreamReader sr, string delim)
+    {
+        var sb = new StringBuilder();
+        var found = false;
+
+        while (!found && !sr.EndOfStream)
+        {
+            for (var i = 0; i < delim.Length; i++)
             {
-                action(bufferLength, buffer);
-                read = stream.Read(buffer, 0, bufferLength);
-            }
-        }
+                var c = (char)sr.Read();
+                sb.Append(c);
 
-        public static byte[] ReadBytes(this Stream stream, int count)
-        {
-            if (stream is null) throw new ArgumentNullException(nameof(stream));
-
-            var buffer = new byte[count];
-            stream.Read(buffer, 0, count);
-            return buffer;
-        }
-
-        public static Stream Rewind(this Stream stream)
-        {
-            if (stream is null) throw new ArgumentNullException(nameof(stream));
-
-            if (!stream.CanSeek) throw new InvalidOperationException("Stream doesn't support rewinding");
-
-            stream.Seek(0, SeekOrigin.Begin);
-            return stream;
-        }
-
-        public static string ReadUntil(this StreamReader sr, string delim)
-        {
-            var sb = new StringBuilder();
-            bool found = false;
-
-            while (!found && !sr.EndOfStream)
-            {
-                for (int i = 0; i < delim.Length; i++)
+                if (c != delim[i])
                 {
-                    char c = (char)sr.Read();
-                    sb.Append(c);
+                    break;
+                }
 
-                    if (c != delim[i])
-                        break;
-
-                    if (i == delim.Length - 1)
-                    {
-                        sb.Remove(sb.Length - delim.Length, delim.Length);
-                        found = true;
-                    }
+                if (i == delim.Length - 1)
+                {
+                    sb.Remove(sb.Length - delim.Length, delim.Length);
+                    found = true;
                 }
             }
-
-            return sb.ToString();
         }
+
+        return sb.ToString();
     }
 }

SystemExtensions.NetStandard/Extensions/StringExtensions.cs

@@ -1,27 +1,26 @@
 using System.Text;
 
-namespace System.Extensions
+namespace System.Extensions;
+
+public static class StringExtensions
 {
-    public static class StringExtensions
+    public static bool IsNullOrEmpty(this string s)
     {
-        public static bool IsNullOrEmpty(this string s)
-        {
-            return string.IsNullOrEmpty(s);
-        }
+        return string.IsNullOrEmpty(s);
+    }
 
-        public static bool IsNullOrWhiteSpace(this string s)
-        {
-            return string.IsNullOrWhiteSpace(s);
-        }
+    public static bool IsNullOrWhiteSpace(this string s)
+    {
+        return string.IsNullOrWhiteSpace(s);
+    }
 
-        public static byte[] GetBytes(this string s)
-        {
-            return Encoding.UTF8.GetBytes(s);
-        }
+    public static byte[] GetBytes(this string s)
+    {
+        return Encoding.UTF8.GetBytes(s);
+    }
 
-        public static string GetString(this byte[] bytes)
-        {
-            return Encoding.UTF8.GetString(bytes);
-        }
+    public static string GetString(this byte[] bytes)
+    {
+        return Encoding.UTF8.GetString(bytes);
     }
 }

SystemExtensions.NetStandard/Extensions/TaskExtensions.cs

@@ -1,180 +0,0 @@
-using System.Collections.Generic;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace System.Extensions
-{
-    public static class TaskExtensions
-    {
-        /// <summary>
-        /// Mark task as <see cref="TaskCreationOptions.LongRunning"/>.
-        /// </summary>
-        /// <typeparam name="T">Result type.</typeparam>
-        /// <param name="task">Task.</param>
-        /// <returns>The started <see cref="Task{TResult}"/></returns>
-        public static Task<T> LongRunning<T>(this Task<T> task)
-        {
-            return Task.Factory.StartNew(async () =>
-            {
-                return await task;
-            }, TaskCreationOptions.LongRunning).Unwrap();
-        }
-
-        /// <summary>
-        /// Mark task as <see cref="TaskCreationOptions.LongRunning"/>.
-        /// </summary>
-        /// <param name="task">Task.</param>
-        /// <returns>The started <see cref="Task"/></returns>
-        public static Task LongRunning(this Task task)
-        {
-            return Task.Factory.StartNew(async () =>
-            {
-                await task;
-            }, TaskCreationOptions.LongRunning).Unwrap();
-        }
-
-        /// <summary>
-        /// Execute action periodically and asynchronously.
-        /// </summary>
-        /// <param name="onTick">Action to be executed.</param>
-        /// <param name="dueTime">Time to pass before starting to execute.</param>
-        /// <param name="interval">Interval between procs.</param>
-        /// <param name="token">Cancellation token used to cancel the cycle.</param>
-        /// <returns></returns>
-        public static async Task RunPeriodicAsync(this Action onTick, TimeSpan dueTime, TimeSpan interval, CancellationToken token)
-        {
-            if (dueTime > TimeSpan.Zero)
-                await Task.Delay(dueTime, token).ConfigureAwait(false);
-
-            while (!token.IsCancellationRequested)
-            {
-                onTick?.Invoke();
-                if (interval > TimeSpan.Zero)
-                    await Task.Delay(interval, token).ConfigureAwait(false);
-            }
-        }
-
-        /// <summary>
-        /// Execute's an async Task<T> method which has a void return value synchronously
-        /// </summary>
-        /// <param name="task">Task<T> method to execute</param>
-        public static void RunSync(this Func<Task> task)
-        {
-            var oldContext = SynchronizationContext.Current;
-            var synch = new ExclusiveSynchronizationContext();
-            SynchronizationContext.SetSynchronizationContext(synch);
-            synch.Post(async _ =>
-            {
-                try
-                {
-                    await task();
-                }
-                catch (Exception e)
-                {
-                    synch.InnerException = e;
-                    throw;
-                }
-                finally
-                {
-                    synch.EndMessageLoop();
-                }
-            }, null);
-            synch.BeginMessageLoop();
-
-            SynchronizationContext.SetSynchronizationContext(oldContext);
-        }
-
-        /// <summary>
-        /// Execute's an async Task<T> method which has a T return type synchronously
-        /// </summary>
-        /// <typeparam name="T">Return Type</typeparam>
-        /// <param name="task">Task<T> method to execute</param>
-        /// <returns></returns>
-        public static T RunSync<T>(this Func<Task<T>> task)
-        {
-            var oldContext = SynchronizationContext.Current;
-            var synch = new ExclusiveSynchronizationContext();
-            SynchronizationContext.SetSynchronizationContext(synch);
-            T ret = default(T);
-            synch.Post(async _ =>
-            {
-                try
-                {
-                    ret = await task();
-                }
-                catch (Exception e)
-                {
-                    synch.InnerException = e;
-                    throw;
-                }
-                finally
-                {
-                    synch.EndMessageLoop();
-                }
-            }, null);
-            synch.BeginMessageLoop();
-            SynchronizationContext.SetSynchronizationContext(oldContext);
-            return ret;
-        }
-        
-        private class ExclusiveSynchronizationContext : SynchronizationContext
-        {
-            private bool done;
-            public Exception InnerException { get; set; }
-            readonly AutoResetEvent workItemsWaiting = new AutoResetEvent(false);
-            readonly Queue<Tuple<SendOrPostCallback, object>> items =
-                new Queue<Tuple<SendOrPostCallback, object>>();
-
-            public override void Send(SendOrPostCallback d, object state)
-            {
-                throw new NotSupportedException("We cannot send to our same thread");
-            }
-
-            public override void Post(SendOrPostCallback d, object state)
-            {
-                lock (items)
-                {
-                    items.Enqueue(Tuple.Create(d, state));
-                }
-                workItemsWaiting.Set();
-            }
-
-            public void EndMessageLoop()
-            {
-                Post(_ => done = true, null);
-            }
-
-            public void BeginMessageLoop()
-            {
-                while (!done)
-                {
-                    Tuple<SendOrPostCallback, object> task = null;
-                    lock (items)
-                    {
-                        if (items.Count > 0)
-                        {
-                            task = items.Dequeue();
-                        }
-                    }
-                    if (task != null)
-                    {
-                        task.Item1(task.Item2);
-                        if (InnerException != null) // the method threw an exeption
-                        {
-                            throw new AggregateException("AsyncHelpers.Run method threw an exception.", InnerException);
-                        }
-                    }
-                    else
-                    {
-                        workItemsWaiting.WaitOne();
-                    }
-                }
-            }
-
-            public override SynchronizationContext CreateCopy()
-            {
-                return this;
-            }
-        }
-    }
-}

SystemExtensions.NetStandard/Extensions/Try.cs

@@ -1,69 +1,73 @@
 using System.Collections.Generic;
 
-namespace System.Extensions
+namespace System.Extensions;
+
+public static class Try
 {
-    public static class Try
+    public static Try<TResult> Action<TResult>(Func<TResult> act)
     {
-        public static Try<TResult> Action<TResult>(Func<TResult> act)
+        return new Try<TResult>(act);
+    }
+}
+public class Try<TResult>
+{
+    private readonly Func<TResult> action;
+    private readonly List<Func<Exception, TResult>> catchActions = new List<Func<Exception, TResult>>();
+    internal Try(Func<TResult> action)
+    {
+        this.action = action;
+    }
+    public static Try<TResult> Action(Func<TResult> act)
+    {
+        return new Try<TResult>(act);
+    }
+
+    public Try<TResult> Catch<TException>(Func<TException, TResult> act) where TException : Exception
+    {
+        this.catchActions.Add((Func<Exception, TResult>)act);
+        return this;
+    }
+
+    public TResult Run()
+    {
+        try
         {
-            return new Try<TResult>(act);
+            return this.action();
+        }
+        catch (Exception ex)
+        {
+            foreach (var catchAction in this.catchActions)
+            {
+                return catchAction(ex);
+            }
+
+            throw;
         }
     }
-    public class Try<TResult>
+
+    public TResult Finally(Action act)
     {
-        private readonly Func<TResult> action;
-        private readonly List<Func<Exception, TResult>> catchActions = new List<Func<Exception, TResult>>();
-        internal Try(Func<TResult> action)
+        if (act is null)
         {
-            this.action = action;
-        }
-        public static Try<TResult> Action(Func<TResult> act)
-        {
-            return new Try<TResult>(act);
+            throw new ArgumentNullException(nameof(act));
         }
 
-        public Try<TResult> Catch<TException>(Func<TException, TResult> act) where TException : Exception
+        try
         {
-            this.catchActions.Add((Func<Exception, TResult>)act);
-            return this;
+            return this.action();
         }
-
-        public TResult Run()
+        catch (Exception ex)
         {
-            try
+            foreach (var catchAction in this.catchActions)
             {
-                return action();
-            }
-            catch (Exception ex)
-            {
-                foreach (var catchAction in this.catchActions)
-                {
-                    return catchAction(ex);
-                }
-                throw;
+                return catchAction(ex);
             }
+
+            throw;
         }
-
-        public TResult Finally(Action act)
+        finally
         {
-            if (act is null) throw new ArgumentNullException(nameof(act));
-
-            try
-            {
-                return this.action();
-            }
-            catch (Exception ex)
-            {
-                foreach (var catchAction in this.catchActions)
-                {
-                    return catchAction(ex);
-                }
-                throw;
-            }
-            finally
-            {
-                act();
-            }
+            act();
         }
     }
 }

SystemExtensions.NetStandard/Http/HttpClient.cs

@@ -1,217 +1,244 @@
-using System.IO;
-using System.Net.Http;
+using System.Extensions;
+using System.IO;
 using System.Net.Http.Headers;
 using System.Threading;
 using System.Threading.Tasks;
 
-namespace System.Http
+namespace System.Net.Http;
+
+public sealed class HttpClient<Tscope> : IHttpClient<Tscope>, IDisposable
 {
-    public sealed class HttpClient<Tscope> : IHttpClient<Tscope>, IDisposable
+    private readonly bool disposeInnerClient = true;
+    private readonly HttpClient httpClient;
+    private readonly Type scope;
+    private EventHandler<HttpClientEventMessage> eventEmitted;
+
+    public event EventHandler<HttpClientEventMessage> EventEmitted
     {
-        private readonly HttpClient httpClient;
-        private readonly Type scope;
-        private EventHandler<HttpClientEventMessage> eventEmitted;
+        add
+        {
+            this.eventEmitted += value;
+        }
+        remove
+        {
+#pragma warning disable CS8601 // Possible null reference assignment.
+            this.eventEmitted -= value;
+#pragma warning restore CS8601 // Possible null reference assignment.
+        }
+    }
+    public Uri BaseAddress { get => this.httpClient.BaseAddress; set => this.httpClient.BaseAddress = value; }
+    public HttpRequestHeaders DefaultRequestHeaders => this.httpClient.DefaultRequestHeaders;
+    public long MaxResponseContentBufferSize { get => this.httpClient.MaxResponseContentBufferSize; set => this.httpClient.MaxResponseContentBufferSize = value; }
+    public TimeSpan Timeout { get => this.httpClient.Timeout; set => this.httpClient.Timeout = value; }
 
-        public event EventHandler<HttpClientEventMessage> EventEmitted
-        {
-            add
-            {
-                this.eventEmitted += value;
-            }
-            remove
-            {
-                this.eventEmitted -= value;
-            }
-        }
-        public Uri BaseAddress { get => this.httpClient.BaseAddress; set => this.httpClient.BaseAddress = value; }
-        public HttpRequestHeaders DefaultRequestHeaders => this.httpClient.DefaultRequestHeaders;
-        public long MaxResponseContentBufferSize { get => this.httpClient.MaxResponseContentBufferSize; set => this.httpClient.MaxResponseContentBufferSize = value; }
-        public TimeSpan Timeout { get => this.httpClient.Timeout; set => this.httpClient.Timeout = value; }
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+    public HttpClient(bool disposeInnerClient = true)
+#pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+    {
+        this.disposeInnerClient = disposeInnerClient;
+        this.httpClient = new HttpClient();
+        this.scope = typeof(Tscope);
+    }
 
-        public HttpClient()
-        {
-            this.httpClient = new HttpClient();
-            this.scope = typeof(Tscope);
-        }
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+    public HttpClient(
+#pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+        HttpMessageHandler handler,
+        bool disposeInnerClient = true)
+    {
+        this.disposeInnerClient = disposeInnerClient;
+        this.httpClient = new HttpClient(handler);
+        this.scope = typeof(Tscope);
+    }
 
-        public HttpClient(
-            HttpMessageHandler handler)
-        {
-            this.httpClient = new HttpClient(handler);
-            this.scope = typeof(Tscope);
-        }
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+    public HttpClient(
+#pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+        HttpMessageHandler handler,
+        bool disposeHandler,
+        bool disposeInnerClient = true)
+    {
+        this.disposeInnerClient = disposeInnerClient;
+        this.httpClient = new HttpClient(handler, disposeHandler);
+        this.scope = typeof(Tscope);
+    }
 
-        public HttpClient(
-            HttpMessageHandler handler,
-            bool disposeHandler)
-        {
-            this.httpClient = new HttpClient(handler, disposeHandler);
-            this.scope = typeof(Tscope);
-        }
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+    public HttpClient(
+#pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+        HttpClient httpClient,
+        bool disposeInnerClient = true)
+    {
+        this.disposeInnerClient = disposeInnerClient;
+        this.httpClient = httpClient.ThrowIfNull(nameof(httpClient));
+        this.scope = typeof(Tscope);
+    }
 
-        public void CancelPendingRequests()
-        {
-            this.LogInformation(string.Empty, "Canceling request");
-            this.httpClient.CancelPendingRequests();
-        }
-        public Task<HttpResponseMessage> DeleteAsync(string requestUri)
-        {
-            this.LogInformation(requestUri, nameof(DeleteAsync));
-            return this.httpClient.DeleteAsync(requestUri);
-        }
-        public Task<HttpResponseMessage> DeleteAsync(string requestUri, CancellationToken cancellationToken)
-        {
-            this.LogInformation(requestUri, nameof(DeleteAsync));
-            return this.httpClient.DeleteAsync(requestUri, cancellationToken);
-        }
-        public Task<HttpResponseMessage> DeleteAsync(Uri requestUri)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(DeleteAsync));
-            return this.httpClient.DeleteAsync(requestUri);
-        }
-        public Task<HttpResponseMessage> DeleteAsync(Uri requestUri, CancellationToken cancellationToken)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(DeleteAsync));
-            return this.httpClient.DeleteAsync(requestUri, cancellationToken);
-        }
-        public Task<HttpResponseMessage> GetAsync(string requestUri)
-        {
-            this.LogInformation(requestUri, nameof(GetAsync));
-            return this.httpClient.GetAsync(requestUri);
-        }
-        public Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption)
-        {
-            this.LogInformation(requestUri, nameof(GetAsync));
-            return this.httpClient.GetAsync(requestUri, completionOption);
-        }
-        public Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken)
-        {
-            this.LogInformation(requestUri, nameof(GetAsync));
-            return this.httpClient.GetAsync(requestUri, completionOption, cancellationToken);
-        }
-        public Task<HttpResponseMessage> GetAsync(string requestUri, CancellationToken cancellationToken)
-        {
-            this.LogInformation(requestUri, nameof(GetAsync));
-            return this.httpClient.GetAsync(requestUri, cancellationToken);
-        }
-        public Task<HttpResponseMessage> GetAsync(Uri requestUri)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(GetAsync));
-            return this.httpClient.GetAsync(requestUri);
-        }
-        public Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(GetAsync));
-            return this.httpClient.GetAsync(requestUri, completionOption);
-        }
-        public Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(GetAsync));
-            return this.httpClient.GetAsync(requestUri, completionOption, cancellationToken);
-        }
-        public Task<HttpResponseMessage> GetAsync(Uri requestUri, CancellationToken cancellationToken)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(GetAsync));
-            return this.httpClient.GetAsync(requestUri, cancellationToken);
-        }
-        public Task<byte[]> GetByteArrayAsync(string requestUri)
-        {
-            this.LogInformation(requestUri, nameof(GetByteArrayAsync));
-            return this.httpClient.GetByteArrayAsync(requestUri);
-        }
-        public Task<byte[]> GetByteArrayAsync(Uri requestUri)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(GetByteArrayAsync));
-            return this.httpClient.GetByteArrayAsync(requestUri);
-        }
-        public Task<Stream> GetStreamAsync(string requestUri)
-        {
-            this.LogInformation(requestUri, nameof(GetStreamAsync));
-            return this.httpClient.GetStreamAsync(requestUri);
-        }
-        public Task<Stream> GetStreamAsync(Uri requestUri)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(GetStreamAsync));
-            return this.httpClient.GetStreamAsync(requestUri);
-        }
-        public Task<string> GetStringAsync(string requestUri)
-        {
-            this.LogInformation(requestUri, nameof(GetStringAsync));
-            return this.httpClient.GetStringAsync(requestUri);
-        }
-        public Task<string> GetStringAsync(Uri requestUri)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(GetStringAsync));
-            return this.httpClient.GetStringAsync(requestUri);
-        }
-        public Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content)
-        {
-            this.LogInformation(requestUri, nameof(PostAsync));
-            return this.httpClient.PostAsync(requestUri, content);
-        }
-        public Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content, CancellationToken cancellationToken)
-        {
-            this.LogInformation(requestUri, nameof(PostAsync));
-            return this.httpClient.PostAsync(requestUri, content, cancellationToken);
-        }
-        public Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(PostAsync));
-            return this.httpClient.PostAsync(requestUri, content);
-        }
-        public Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(PostAsync));
-            return this.httpClient.PostAsync(requestUri, content, cancellationToken);
-        }
-        public Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content)
-        {
-            this.LogInformation(requestUri, nameof(PutAsync));
-            return this.httpClient.PutAsync(requestUri, content);
-        }
-        public Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content, CancellationToken cancellationToken)
-        {
-            this.LogInformation(requestUri, nameof(PutAsync));
-            return this.httpClient.PutAsync(requestUri, content, cancellationToken);
-        }
-        public Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(PutAsync));
-            return this.httpClient.PutAsync(requestUri, content);
-        }
-        public Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken)
-        {
-            this.LogInformation(requestUri.ToString(), nameof(PutAsync));
-            return this.httpClient.PutAsync(requestUri, content, cancellationToken);
-        }
-        public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request)
-        {
-            this.LogInformation(request.RequestUri.ToString(), nameof(SendAsync));
-            return this.httpClient.SendAsync(request);
-        }
-        public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption)
-        {
-            this.LogInformation(request.RequestUri.ToString(), nameof(SendAsync));
-            return this.httpClient.SendAsync(request, completionOption);
-        }
-        public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken)
-        {
-            this.LogInformation(request.RequestUri.ToString(), nameof(SendAsync));
-            return this.httpClient.SendAsync(request, completionOption, cancellationToken);
-        }
-        public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
-        {
-            this.LogInformation(request.RequestUri.ToString(), nameof(SendAsync));
-            return this.httpClient.SendAsync(request, cancellationToken);
-        }
-        public void Dispose()
+    public void CancelPendingRequests()
+    {
+        this.LogDebug(string.Empty, "Canceling request");
+        this.httpClient.CancelPendingRequests();
+    }
+    public Task<HttpResponseMessage> DeleteAsync(string requestUri)
+    {
+        this.LogDebug(requestUri, nameof(DeleteAsync));
+        return this.httpClient.DeleteAsync(requestUri);
+    }
+    public Task<HttpResponseMessage> DeleteAsync(string requestUri, CancellationToken cancellationToken)
+    {
+        this.LogDebug(requestUri, nameof(DeleteAsync));
+        return this.httpClient.DeleteAsync(requestUri, cancellationToken);
+    }
+    public Task<HttpResponseMessage> DeleteAsync(Uri requestUri)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(DeleteAsync));
+        return this.httpClient.DeleteAsync(requestUri);
+    }
+    public Task<HttpResponseMessage> DeleteAsync(Uri requestUri, CancellationToken cancellationToken)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(DeleteAsync));
+        return this.httpClient.DeleteAsync(requestUri, cancellationToken);
+    }
+    public Task<HttpResponseMessage> GetAsync(string requestUri)
+    {
+        this.LogDebug(requestUri, nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri);
+    }
+    public Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption)
+    {
+        this.LogDebug(requestUri, nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, completionOption);
+    }
+    public Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken)
+    {
+        this.LogDebug(requestUri, nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, completionOption, cancellationToken);
+    }
+    public Task<HttpResponseMessage> GetAsync(string requestUri, CancellationToken cancellationToken)
+    {
+        this.LogDebug(requestUri, nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, cancellationToken);
+    }
+    public Task<HttpResponseMessage> GetAsync(Uri requestUri)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri);
+    }
+    public Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, completionOption);
+    }
+    public Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, completionOption, cancellationToken);
+    }
+    public Task<HttpResponseMessage> GetAsync(Uri requestUri, CancellationToken cancellationToken)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, cancellationToken);
+    }
+    public Task<byte[]> GetByteArrayAsync(string requestUri)
+    {
+        this.LogDebug(requestUri, nameof(GetByteArrayAsync));
+        return this.httpClient.GetByteArrayAsync(requestUri);
+    }
+    public Task<byte[]> GetByteArrayAsync(Uri requestUri)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(GetByteArrayAsync));
+        return this.httpClient.GetByteArrayAsync(requestUri);
+    }
+    public Task<Stream> GetStreamAsync(string requestUri)
+    {
+        this.LogDebug(requestUri, nameof(GetStreamAsync));
+        return this.httpClient.GetStreamAsync(requestUri);
+    }
+    public Task<Stream> GetStreamAsync(Uri requestUri)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(GetStreamAsync));
+        return this.httpClient.GetStreamAsync(requestUri);
+    }
+    public Task<string> GetStringAsync(string requestUri)
+    {
+        this.LogDebug(requestUri, nameof(GetStringAsync));
+        return this.httpClient.GetStringAsync(requestUri);
+    }
+    public Task<string> GetStringAsync(Uri requestUri)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(GetStringAsync));
+        return this.httpClient.GetStringAsync(requestUri);
+    }
+    public Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content)
+    {
+        this.LogDebug(requestUri, nameof(PostAsync));
+        return this.httpClient.PostAsync(requestUri, content);
+    }
+    public Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content, CancellationToken cancellationToken)
+    {
+        this.LogDebug(requestUri, nameof(PostAsync));
+        return this.httpClient.PostAsync(requestUri, content, cancellationToken);
+    }
+    public Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(PostAsync));
+        return this.httpClient.PostAsync(requestUri, content);
+    }
+    public Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(PostAsync));
+        return this.httpClient.PostAsync(requestUri, content, cancellationToken);
+    }
+    public Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content)
+    {
+        this.LogDebug(requestUri, nameof(PutAsync));
+        return this.httpClient.PutAsync(requestUri, content);
+    }
+    public Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content, CancellationToken cancellationToken)
+    {
+        this.LogDebug(requestUri, nameof(PutAsync));
+        return this.httpClient.PutAsync(requestUri, content, cancellationToken);
+    }
+    public Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(PutAsync));
+        return this.httpClient.PutAsync(requestUri, content);
+    }
+    public Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken)
+    {
+        this.LogDebug(requestUri.ToString(), nameof(PutAsync));
+        return this.httpClient.PutAsync(requestUri, content, cancellationToken);
+    }
+    public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request)
+    {
+        this.LogDebug(request.RequestUri.ToString(), nameof(SendAsync));
+        return this.httpClient.SendAsync(request);
+    }
+    public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption)
+    {
+        this.LogDebug(request.RequestUri.ToString(), nameof(SendAsync));
+        return this.httpClient.SendAsync(request, completionOption);
+    }
+    public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken)
+    {
+        this.LogDebug(request.RequestUri.ToString(), nameof(SendAsync));
+        return this.httpClient.SendAsync(request, completionOption, cancellationToken);
+    }
+    public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+    {
+        this.LogDebug(request.RequestUri.ToString(), nameof(SendAsync));
+        return this.httpClient.SendAsync(request, cancellationToken);
+    }
+    public void Dispose()
+    {
+        if (this.disposeInnerClient)
         {
             this.httpClient.Dispose();
         }
+    }
 
-        private void LogInformation(string url, string method)
-        {
-            this.eventEmitted?.Invoke(this, new HttpClientEventMessage(this.scope, method, url));
-        }
+    private void LogDebug(string url, string method)
+    {
+        this.eventEmitted?.Invoke(this, new HttpClientEventMessage(this.scope, method, url));
     }
 }

SystemExtensions.NetStandard/Http/HttpClientEventMessage.cs

@@ -1,16 +1,15 @@
-namespace System.Http
-{
-    public sealed class HttpClientEventMessage
-    {
-        public Type Scope { get; }
-        public string Method { get; }
-        public string Url { get; }
+namespace System.Net.Http;
 
-        internal HttpClientEventMessage(Type scope, string method, string url)
-        {
-            this.Scope = scope;
-            this.Method = method;
-            this.Url = url;
-        }
+public sealed class HttpClientEventMessage
+{
+    public Type Scope { get; }
+    public string Method { get; }
+    public string Url { get; }
+
+    internal HttpClientEventMessage(Type scope, string method, string url)
+    {
+        this.Scope = scope;
+        this.Method = method;
+        this.Url = url;
     }
 }

SystemExtensions.NetStandard/Http/IHttpClient.cs

@@ -1,49 +1,47 @@
 using System.IO;
-using System.Net.Http;
 using System.Net.Http.Headers;
 using System.Threading;
 using System.Threading.Tasks;
 
-namespace System.Http
-{
-    public interface IHttpClient<TScope>
-    {
-        event EventHandler<HttpClientEventMessage> EventEmitted;
-        Uri BaseAddress { get; set; }
-        HttpRequestHeaders DefaultRequestHeaders { get; }
-        long MaxResponseContentBufferSize { get; set; }
-        TimeSpan Timeout { get; set; }
+namespace System.Net.Http;
 
-        void CancelPendingRequests();
-        Task<HttpResponseMessage> DeleteAsync(string requestUri);
-        Task<HttpResponseMessage> DeleteAsync(string requestUri, CancellationToken cancellationToken);
-        Task<HttpResponseMessage> DeleteAsync(Uri requestUri);
-        Task<HttpResponseMessage> DeleteAsync(Uri requestUri, CancellationToken cancellationToken);
-        Task<HttpResponseMessage> GetAsync(string requestUri);
-        Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption);
-        Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken);
-        Task<HttpResponseMessage> GetAsync(string requestUri, CancellationToken cancellationToken);
-        Task<HttpResponseMessage> GetAsync(Uri requestUri);
-        Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption);
-        Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken);
-        Task<HttpResponseMessage> GetAsync(Uri requestUri, CancellationToken cancellationToken);
-        Task<byte[]> GetByteArrayAsync(string requestUri);
-        Task<byte[]> GetByteArrayAsync(Uri requestUri);
-        Task<Stream> GetStreamAsync(string requestUri);
-        Task<Stream> GetStreamAsync(Uri requestUri);
-        Task<string> GetStringAsync(string requestUri);
-        Task<string> GetStringAsync(Uri requestUri);
-        Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content);
-        Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content, CancellationToken cancellationToken);
-        Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content);
-        Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken);
-        Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content);
-        Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content, CancellationToken cancellationToken);
-        Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content);
-        Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken);
-        Task<HttpResponseMessage> SendAsync(HttpRequestMessage request);
-        Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption);
-        Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken);
-        Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken);
-    }
+public interface IHttpClient<TScope>
+{
+    event EventHandler<HttpClientEventMessage> EventEmitted;
+    Uri BaseAddress { get; set; }
+    HttpRequestHeaders DefaultRequestHeaders { get; }
+    long MaxResponseContentBufferSize { get; set; }
+    TimeSpan Timeout { get; set; }
+
+    void CancelPendingRequests();
+    Task<HttpResponseMessage> DeleteAsync(string requestUri);
+    Task<HttpResponseMessage> DeleteAsync(string requestUri, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> DeleteAsync(Uri requestUri);
+    Task<HttpResponseMessage> DeleteAsync(Uri requestUri, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> GetAsync(string requestUri);
+    Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption);
+    Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> GetAsync(string requestUri, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> GetAsync(Uri requestUri);
+    Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption);
+    Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> GetAsync(Uri requestUri, CancellationToken cancellationToken);
+    Task<byte[]> GetByteArrayAsync(string requestUri);
+    Task<byte[]> GetByteArrayAsync(Uri requestUri);
+    Task<Stream> GetStreamAsync(string requestUri);
+    Task<Stream> GetStreamAsync(Uri requestUri);
+    Task<string> GetStringAsync(string requestUri);
+    Task<string> GetStringAsync(Uri requestUri);
+    Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content);
+    Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content);
+    Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content);
+    Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content);
+    Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> SendAsync(HttpRequestMessage request);
+    Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption);
+    Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken);
 }

SystemExtensions.NetStandard/Logging/ScopedLogger.cs

@@ -0,0 +1,76 @@
+using Microsoft.Extensions.Logging;
+using System.Extensions;
+
+namespace System.Logging;
+
+public readonly struct ScopedLogger<T>
+{
+    private readonly ILogger<T> logger;
+    private readonly string scope;
+    private readonly string flowId;
+
+    private ScopedLogger(ILogger<T> logger, string scope, string flowId)
+    {
+        this.logger = logger;
+        this.scope = scope;
+        this.flowId = flowId.IsNullOrWhiteSpace() ? string.Empty : $"[{flowId}] ";
+    }
+
+    public ScopedLogger<T> LogInformation(string message, params object[] parameters)
+    {
+        this.logger.LogInformation(this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogDebug(string message, params object[] parameters)
+    {
+        this.logger.LogDebug(this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogWarning(string message, params object[] parameters)
+    {
+        this.logger.LogWarning(this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogError(string message, params object[] parameters)
+    {
+        this.logger.LogError(this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogCritical(string message, params object[] parameters)
+    {
+        this.logger.LogCritical(this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogWarning(Exception e, string message, params object[] parameters)
+    {
+        this.logger.LogWarning(e, this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogError(Exception e, string message, params object[] parameters)
+    {
+        this.logger.LogError(e, this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogCritical(Exception e, string message, params object[] parameters)
+    {
+        this.logger.LogCritical(e, this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    private string CreateMessage(string message)
+    {
+        return $"{this.flowId}{this.scope}: {message}";
+    }
+
+    public static ScopedLogger<T> Create(ILogger<T> logger, string scope, string flowId)
+    {
+        return new ScopedLogger<T>(logger, scope.ThrowIfNull(nameof(scope)), flowId);
+    }
+}

SystemExtensions.NetStandard/Structures/BitStructures/Int32BitStruct.cs

@@ -1,175 +1,174 @@
-namespace System.Structures.BitStructures
+namespace System.Structures.BitStructures;
+
+public struct Int32BitStruct : IEquatable<Int32BitStruct>
 {
-    public struct Int32BitStruct : IEquatable<Int32BitStruct>
+    public Int32BitStruct(uint value) => this.Value = value;
+    public Int32BitStruct(int value) { unchecked { this.Value = (uint)value; } }
+    public uint Value { get; set; }
+    public uint Bit0 { get => this.Value & 0x1; set => this.Value = (this.Value & ~(0x1U) | (0x1 & value)); }
+    public uint Bit1 { get => this.Value >> 1 & 0x1; set => this.Value = (this.Value & ~(0x1U << 1)) | ((0x1 & value) << 1); }
+    public uint Bit2 { get => this.Value >> 2 & 0x1; set => this.Value = (this.Value & ~(0x1U << 2)) | ((0x1 & value) << 2); }
+    public uint Bit3 { get => this.Value >> 3 & 0x1; set => this.Value = (this.Value & ~(0x1U << 3)) | ((0x1 & value) << 3); }
+    public uint Bit4 { get => this.Value >> 4 & 0x1; set => this.Value = (this.Value & ~(0x1U << 4)) | ((0x1 & value) << 4); }
+    public uint Bit5 { get => this.Value >> 5 & 0x1; set => this.Value = (this.Value & ~(0x1U << 5)) | ((0x1 & value) << 5); }
+    public uint Bit6 { get => this.Value >> 6 & 0x1; set => this.Value = (this.Value & ~(0x1U << 6)) | ((0x1 & value) << 6); }
+    public uint Bit7 { get => this.Value >> 7 & 0x1; set => this.Value = (this.Value & ~(0x1U << 7)) | ((0x1 & value) << 7); }
+    public uint Bit8 { get => this.Value >> 8 & 0x1; set => this.Value = (this.Value & ~(0x1U << 8)) | ((0x1 & value) << 8); }
+    public uint Bit9 { get => this.Value >> 9 & 0x1; set => this.Value = (this.Value & ~(0x1U << 9)) | ((0x1 & value) << 9); }
+    public uint Bit10 { get => this.Value >> 10 & 0x1; set => this.Value = (this.Value & ~(0x1U << 10)) | ((0x1 & value) << 10); }
+    public uint Bit11 { get => this.Value >> 11 & 0x1; set => this.Value = (this.Value & ~(0x1U << 11)) | ((0x1 & value) << 11); }
+    public uint Bit12 { get => this.Value >> 12 & 0x1; set => this.Value = (this.Value & ~(0x1U << 12)) | ((0x1 & value) << 12); }
+    public uint Bit13 { get => this.Value >> 13 & 0x1; set => this.Value = (this.Value & ~(0x1U << 13)) | ((0x1 & value) << 13); }
+    public uint Bit14 { get => this.Value >> 14 & 0x1; set => this.Value = (this.Value & ~(0x1U << 14)) | ((0x1 & value) << 14); }
+    public uint Bit15 { get => this.Value >> 15 & 0x1; set => this.Value = (this.Value & ~(0x1U << 15)) | ((0x1 & value) << 15); }
+    public uint Bit16 { get => this.Value >> 16 & 0x1; set => this.Value = (this.Value & ~(0x1U << 16)) | ((0x1 & value) << 16); }
+    public uint Bit17 { get => this.Value >> 17 & 0x1; set => this.Value = (this.Value & ~(0x1U << 17)) | ((0x1 & value) << 17); }
+    public uint Bit18 { get => this.Value >> 18 & 0x1; set => this.Value = (this.Value & ~(0x1U << 18)) | ((0x1 & value) << 18); }
+    public uint Bit19 { get => this.Value >> 19 & 0x1; set => this.Value = (this.Value & ~(0x1U << 19)) | ((0x1 & value) << 19); }
+    public uint Bit20 { get => this.Value >> 20 & 0x1; set => this.Value = (this.Value & ~(0x1U << 20)) | ((0x1 & value) << 20); }
+    public uint Bit21 { get => this.Value >> 21 & 0x1; set => this.Value = (this.Value & ~(0x1U << 21)) | ((0x1 & value) << 21); }
+    public uint Bit22 { get => this.Value >> 22 & 0x1; set => this.Value = (this.Value & ~(0x1U << 22)) | ((0x1 & value) << 22); }
+    public uint Bit23 { get => this.Value >> 23 & 0x1; set => this.Value = (this.Value & ~(0x1U << 23)) | ((0x1 & value) << 23); }
+    public uint Bit24 { get => this.Value >> 24 & 0x1; set => this.Value = (this.Value & ~(0x1U << 24)) | ((0x1 & value) << 24); }
+    public uint Bit25 { get => this.Value >> 25 & 0x1; set => this.Value = (this.Value & ~(0x1U << 25)) | ((0x1 & value) << 25); }
+    public uint Bit26 { get => this.Value >> 26 & 0x1; set => this.Value = (this.Value & ~(0x1U << 26)) | ((0x1 & value) << 26); }
+    public uint Bit27 { get => this.Value >> 27 & 0x1; set => this.Value = (this.Value & ~(0x1U << 27)) | ((0x1 & value) << 27); }
+    public uint Bit28 { get => this.Value >> 28 & 0x1; set => this.Value = (this.Value & ~(0x1U << 28)) | ((0x1 & value) << 28); }
+    public uint Bit29 { get => this.Value >> 29 & 0x1; set => this.Value = (this.Value & ~(0x1U << 29)) | ((0x1 & value) << 29); }
+    public uint Bit30 { get => this.Value >> 30 & 0x1; set => this.Value = (this.Value & ~(0x1U << 30)) | ((0x1 & value) << 30); }
+    public uint Bit31 { get => this.Value >> 31 & 0x1; set => this.Value = (this.Value & ~(0x1U << 31)) | ((0x1 & value) << 31); }
+
+    public static implicit operator Int32BitStruct(uint value) => new Int32BitStruct(value);
+    public static implicit operator Int32BitStruct(int value) => new Int32BitStruct(value);
+    public static implicit operator int(Int32BitStruct value) => (int)value.Value;
+    public static implicit operator uint(Int32BitStruct value) => value.Value;
+    public static bool operator ==(Int32BitStruct first, Int32BitStruct second)
     {
-        public Int32BitStruct(uint value) => this.Value = value;
-        public Int32BitStruct(int value) { unchecked { this.Value = (uint)value; } }
-        public uint Value { get; set; }
-        public uint Bit0 { get => this.Value & 0x1; set => this.Value = (this.Value & ~(0x1U) | (0x1 & value)); }
-        public uint Bit1 { get => this.Value >> 1 & 0x1; set => this.Value = (this.Value & ~(0x1U << 1)) | ((0x1 & value) << 1); }
-        public uint Bit2 { get => this.Value >> 2 & 0x1; set => this.Value = (this.Value & ~(0x1U << 2)) | ((0x1 & value) << 2); }
-        public uint Bit3 { get => this.Value >> 3 & 0x1; set => this.Value = (this.Value & ~(0x1U << 3)) | ((0x1 & value) << 3); }
-        public uint Bit4 { get => this.Value >> 4 & 0x1; set => this.Value = (this.Value & ~(0x1U << 4)) | ((0x1 & value) << 4); }
-        public uint Bit5 { get => this.Value >> 5 & 0x1; set => this.Value = (this.Value & ~(0x1U << 5)) | ((0x1 & value) << 5); }
-        public uint Bit6 { get => this.Value >> 6 & 0x1; set => this.Value = (this.Value & ~(0x1U << 6)) | ((0x1 & value) << 6); }
-        public uint Bit7 { get => this.Value >> 7 & 0x1; set => this.Value = (this.Value & ~(0x1U << 7)) | ((0x1 & value) << 7); }
-        public uint Bit8 { get => this.Value >> 8 & 0x1; set => this.Value = (this.Value & ~(0x1U << 8)) | ((0x1 & value) << 8); }
-        public uint Bit9 { get => this.Value >> 9 & 0x1; set => this.Value = (this.Value & ~(0x1U << 9)) | ((0x1 & value) << 9); }
-        public uint Bit10 { get => this.Value >> 10 & 0x1; set => this.Value = (this.Value & ~(0x1U << 10)) | ((0x1 & value) << 10); }
-        public uint Bit11 { get => this.Value >> 11 & 0x1; set => this.Value = (this.Value & ~(0x1U << 11)) | ((0x1 & value) << 11); }
-        public uint Bit12 { get => this.Value >> 12 & 0x1; set => this.Value = (this.Value & ~(0x1U << 12)) | ((0x1 & value) << 12); }
-        public uint Bit13 { get => this.Value >> 13 & 0x1; set => this.Value = (this.Value & ~(0x1U << 13)) | ((0x1 & value) << 13); }
-        public uint Bit14 { get => this.Value >> 14 & 0x1; set => this.Value = (this.Value & ~(0x1U << 14)) | ((0x1 & value) << 14); }
-        public uint Bit15 { get => this.Value >> 15 & 0x1; set => this.Value = (this.Value & ~(0x1U << 15)) | ((0x1 & value) << 15); }
-        public uint Bit16 { get => this.Value >> 16 & 0x1; set => this.Value = (this.Value & ~(0x1U << 16)) | ((0x1 & value) << 16); }
-        public uint Bit17 { get => this.Value >> 17 & 0x1; set => this.Value = (this.Value & ~(0x1U << 17)) | ((0x1 & value) << 17); }
-        public uint Bit18 { get => this.Value >> 18 & 0x1; set => this.Value = (this.Value & ~(0x1U << 18)) | ((0x1 & value) << 18); }
-        public uint Bit19 { get => this.Value >> 19 & 0x1; set => this.Value = (this.Value & ~(0x1U << 19)) | ((0x1 & value) << 19); }
-        public uint Bit20 { get => this.Value >> 20 & 0x1; set => this.Value = (this.Value & ~(0x1U << 20)) | ((0x1 & value) << 20); }
-        public uint Bit21 { get => this.Value >> 21 & 0x1; set => this.Value = (this.Value & ~(0x1U << 21)) | ((0x1 & value) << 21); }
-        public uint Bit22 { get => this.Value >> 22 & 0x1; set => this.Value = (this.Value & ~(0x1U << 22)) | ((0x1 & value) << 22); }
-        public uint Bit23 { get => this.Value >> 23 & 0x1; set => this.Value = (this.Value & ~(0x1U << 23)) | ((0x1 & value) << 23); }
-        public uint Bit24 { get => this.Value >> 24 & 0x1; set => this.Value = (this.Value & ~(0x1U << 24)) | ((0x1 & value) << 24); }
-        public uint Bit25 { get => this.Value >> 25 & 0x1; set => this.Value = (this.Value & ~(0x1U << 25)) | ((0x1 & value) << 25); }
-        public uint Bit26 { get => this.Value >> 26 & 0x1; set => this.Value = (this.Value & ~(0x1U << 26)) | ((0x1 & value) << 26); }
-        public uint Bit27 { get => this.Value >> 27 & 0x1; set => this.Value = (this.Value & ~(0x1U << 27)) | ((0x1 & value) << 27); }
-        public uint Bit28 { get => this.Value >> 28 & 0x1; set => this.Value = (this.Value & ~(0x1U << 28)) | ((0x1 & value) << 28); }
-        public uint Bit29 { get => this.Value >> 29 & 0x1; set => this.Value = (this.Value & ~(0x1U << 29)) | ((0x1 & value) << 29); }
-        public uint Bit30 { get => this.Value >> 30 & 0x1; set => this.Value = (this.Value & ~(0x1U << 30)) | ((0x1 & value) << 30); }
-        public uint Bit31 { get => this.Value >> 31 & 0x1; set => this.Value = (this.Value & ~(0x1U << 31)) | ((0x1 & value) << 31); }
+        return first.Value == second.Value;
+    }
 
-        public static implicit operator Int32BitStruct(uint value) => new Int32BitStruct(value);
-        public static implicit operator Int32BitStruct(int value) => new Int32BitStruct(value);
-        public static implicit operator int(Int32BitStruct value) => (int)value.Value;
-        public static implicit operator uint(Int32BitStruct value) => value.Value;
-        public static bool operator ==(Int32BitStruct first, Int32BitStruct second)
-        {
-            return first.Value == second.Value;
-        }
+    public static bool operator !=(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value != second.Value;
+    }
 
-        public static bool operator !=(Int32BitStruct first, Int32BitStruct second)
-        {
-            return first.Value != second.Value;
-        }
+    public static bool operator ==(Int32BitStruct first, uint second)
+    {
+        return first.Value == second;
+    }
 
-        public static bool operator ==(Int32BitStruct first, uint second)
-        {
-            return first.Value == second;
-        }
+    public static bool operator !=(Int32BitStruct first, uint second)
+    {
+        return first.Value != second;
+    }
 
-        public static bool operator !=(Int32BitStruct first, uint second)
+    public static bool operator ==(Int32BitStruct first, int second)
+    {
+        unchecked
         {
-            return first.Value != second;
-        }
-
-        public static bool operator ==(Int32BitStruct first, int second)
-        {
-            unchecked
-            {
-                return first.Value == (uint)second;
-            }
-        }
-
-        public static bool operator !=(Int32BitStruct first, int second)
-        {
-            unchecked
-            {
-                return first.Value != (uint)second;
-            }
-        }
-
-        public static bool operator >=(Int32BitStruct first, Int32BitStruct second)
-        {
-            return first.Value >= second.Value;
-        }
-
-        public static bool operator <=(Int32BitStruct first, Int32BitStruct second)
-        {
-            return first.Value <= second.Value;
-        }
-
-        public static bool operator >=(Int32BitStruct first, int second)
-        {
-            unchecked
-            {
-                return first.Value >= (uint)second;
-            }
-        }
-
-        public static bool operator <=(Int32BitStruct first, int second)
-        {
-            unchecked
-            {
-                return first.Value <= (uint)second;
-            }
-        }
-
-        public static bool operator >=(Int32BitStruct first, uint second)
-        {
-            return first.Value >= second;
-        }
-
-        public static bool operator <=(Int32BitStruct first, uint second)
-        {
-            return first.Value <= second;
-        }
-
-        public static bool operator >(Int32BitStruct first, Int32BitStruct second)
-        {
-            return first.Value > second.Value;
-        }
-
-        public static bool operator <(Int32BitStruct first, Int32BitStruct second)
-        {
-            return first.Value < second.Value;
-        }
-
-        public static bool operator >(Int32BitStruct first, int second)
-        {
-            unchecked
-            {
-                return first.Value > (uint)second;
-            }
-        }
-
-        public static bool operator <(Int32BitStruct first, int second)
-        {
-            unchecked
-            {
-                return first.Value < (uint)second;
-            }
-        }
-
-        public static bool operator >(Int32BitStruct first, uint second)
-        {
-            return first.Value > second;
-        }
-
-        public static bool operator <(Int32BitStruct first, uint second)
-        {
-            return first.Value < second;
-        }
-
-        public bool Equals(Int32BitStruct other)
-        {
-            return this.Value == other.Value;
-        }
-
-        public override bool Equals(object obj)
-        {
-            if (obj is Int32BitStruct)
-            {
-                return this.Equals((Int32BitStruct)obj);
-            }
-            else
-            {
-                return base.Equals(obj);
-            }
-        }
-
-        public override int GetHashCode()
-        {
-            return (this.Value).GetHashCode();
+            return first.Value == (uint)second;
         }
     }
+
+    public static bool operator !=(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value != (uint)second;
+        }
+    }
+
+    public static bool operator >=(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value >= second.Value;
+    }
+
+    public static bool operator <=(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value <= second.Value;
+    }
+
+    public static bool operator >=(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value >= (uint)second;
+        }
+    }
+
+    public static bool operator <=(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value <= (uint)second;
+        }
+    }
+
+    public static bool operator >=(Int32BitStruct first, uint second)
+    {
+        return first.Value >= second;
+    }
+
+    public static bool operator <=(Int32BitStruct first, uint second)
+    {
+        return first.Value <= second;
+    }
+
+    public static bool operator >(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value > second.Value;
+    }
+
+    public static bool operator <(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value < second.Value;
+    }
+
+    public static bool operator >(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value > (uint)second;
+        }
+    }
+
+    public static bool operator <(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value < (uint)second;
+        }
+    }
+
+    public static bool operator >(Int32BitStruct first, uint second)
+    {
+        return first.Value > second;
+    }
+
+    public static bool operator <(Int32BitStruct first, uint second)
+    {
+        return first.Value < second;
+    }
+
+    public bool Equals(Int32BitStruct other)
+    {
+        return this.Value == other.Value;
+    }
+
+    public override bool Equals(object obj)
+    {
+        if (obj is Int32BitStruct)
+        {
+            return this.Equals((Int32BitStruct)obj);
+        }
+        else
+        {
+            return base.Equals(obj);
+        }
+    }
+
+    public override int GetHashCode()
+    {
+        return (this.Value).GetHashCode();
+    }
 }

SystemExtensions.NetStandard/Structures/BitStructures/Int64BitStruct.cs

@@ -1,205 +1,204 @@
 using System;
 
-namespace System.Structures.BitStructures
+namespace System.Structures.BitStructures;
+
+public struct Int64BitStruct : IEquatable<Int64BitStruct>
 {
-    public struct Int64BitStruct : IEquatable<Int64BitStruct>
+    public Int64BitStruct(uint low, uint high)
     {
-        public Int64BitStruct(uint low, uint high)
-        {
-            this.Value = low + ((ulong)high << 32);
-        }
+        this.Value = low + ((ulong)high << 32);
+    }
 
-        public Int64BitStruct(int low, int high)
+    public Int64BitStruct(int low, int high)
+    {
+        unchecked
         {
-            unchecked
-            {
-                this.Value = (uint)low + ((ulong)high << 32);
-            }
-        }
-
-        public Int64BitStruct(long value)
-        {
-            unchecked
-            {
-                this.Value = (ulong)value;
-            }
-        }
-
-        public Int64BitStruct(ulong value)
-        {
-            this.Value = value;
-        }
-
-        public ulong Value { get; set; }
-        public uint Low { get => (uint)(this.Value & 0xFFFFFFFF); set => this.Value = (this.Value & ~(0xFFFFFFFF)) | (0xFFFFFFFF & value); }
-        public uint High { get => (uint)((this.Value >> 32) & 0xFFFFFFFF); set => this.Value = (this.Value & ~(0xFFFFFFFF00000000)) | ((ulong)(0xFFFFFFFF & value) << 32); }
-        public ulong Bit0 { get => this.Value & 0x1; set => this.Value = (this.Value & ~(0x1UL) | (0x1 & value)); }
-        public ulong Bit1 { get => this.Value >> 1 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 1)) | ((0x1 & value) << 1); }
-        public ulong Bit2 { get => this.Value >> 2 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 2)) | ((0x1 & value) << 2); }
-        public ulong Bit3 { get => this.Value >> 3 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 3)) | ((0x1 & value) << 3); }
-        public ulong Bit4 { get => this.Value >> 4 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 4)) | ((0x1 & value) << 4); }
-        public ulong Bit5 { get => this.Value >> 5 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 5)) | ((0x1 & value) << 5); }
-        public ulong Bit6 { get => this.Value >> 6 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 6)) | ((0x1 & value) << 6); }
-        public ulong Bit7 { get => this.Value >> 7 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 7)) | ((0x1 & value) << 7); }
-        public ulong Bit8 { get => this.Value >> 8 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 8)) | ((0x1 & value) << 8); }
-        public ulong Bit9 { get => this.Value >> 9 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 9)) | ((0x1 & value) << 9); }
-        public ulong Bit10 { get => this.Value >> 10 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 10)) | ((0x1 & value) << 10); }
-        public ulong Bit11 { get => this.Value >> 11 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 11)) | ((0x1 & value) << 11); }
-        public ulong Bit12 { get => this.Value >> 12 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 12)) | ((0x1 & value) << 12); }
-        public ulong Bit13 { get => this.Value >> 13 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 13)) | ((0x1 & value) << 13); }
-        public ulong Bit14 { get => this.Value >> 14 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 14)) | ((0x1 & value) << 14); }
-        public ulong Bit15 { get => this.Value >> 15 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 15)) | ((0x1 & value) << 15); }
-        public ulong Bit16 { get => this.Value >> 16 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 16)) | ((0x1 & value) << 16); }
-        public ulong Bit17 { get => this.Value >> 17 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 17)) | ((0x1 & value) << 17); }
-        public ulong Bit18 { get => this.Value >> 18 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 18)) | ((0x1 & value) << 18); }
-        public ulong Bit19 { get => this.Value >> 19 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 19)) | ((0x1 & value) << 19); }
-        public ulong Bit20 { get => this.Value >> 20 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 20)) | ((0x1 & value) << 20); }
-        public ulong Bit21 { get => this.Value >> 21 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 21)) | ((0x1 & value) << 21); }
-        public ulong Bit22 { get => this.Value >> 22 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 22)) | ((0x1 & value) << 22); }
-        public ulong Bit23 { get => this.Value >> 23 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 23)) | ((0x1 & value) << 23); }
-        public ulong Bit24 { get => this.Value >> 24 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 24)) | ((0x1 & value) << 24); }
-        public ulong Bit25 { get => this.Value >> 25 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 25)) | ((0x1 & value) << 25); }
-        public ulong Bit26 { get => this.Value >> 26 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 26)) | ((0x1 & value) << 26); }
-        public ulong Bit27 { get => this.Value >> 27 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 27)) | ((0x1 & value) << 27); }
-        public ulong Bit28 { get => this.Value >> 28 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 28)) | ((0x1 & value) << 28); }
-        public ulong Bit29 { get => this.Value >> 29 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 29)) | ((0x1 & value) << 29); }
-        public ulong Bit30 { get => this.Value >> 30 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 30)) | ((0x1 & value) << 30); }
-        public ulong Bit31 { get => this.Value >> 31 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 31)) | ((0x1 & value) << 31); }
-        public ulong Bit32 { get => this.Value >> 32 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 32)) | ((0x1 & value) << 32); }
-        public ulong Bit33 { get => this.Value >> 33 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 33)) | ((0x1 & value) << 33); }
-        public ulong Bit34 { get => this.Value >> 34 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 34)) | ((0x1 & value) << 34); }
-        public ulong Bit35 { get => this.Value >> 35 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 35)) | ((0x1 & value) << 35); }
-        public ulong Bit36 { get => this.Value >> 36 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 36)) | ((0x1 & value) << 36); }
-        public ulong Bit37 { get => this.Value >> 37 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 37)) | ((0x1 & value) << 37); }
-        public ulong Bit38 { get => this.Value >> 38 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 38)) | ((0x1 & value) << 38); }
-        public ulong Bit39 { get => this.Value >> 39 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 39)) | ((0x1 & value) << 39); }
-        public ulong Bit40 { get => this.Value >> 40 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 40)) | ((0x1 & value) << 40); }
-        public ulong Bit41 { get => this.Value >> 41 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 41)) | ((0x1 & value) << 41); }
-        public ulong Bit42 { get => this.Value >> 42 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 42)) | ((0x1 & value) << 42); }
-        public ulong Bit43 { get => this.Value >> 43 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 43)) | ((0x1 & value) << 43); }
-        public ulong Bit44 { get => this.Value >> 44 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 44)) | ((0x1 & value) << 44); }
-        public ulong Bit45 { get => this.Value >> 45 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 45)) | ((0x1 & value) << 45); }
-        public ulong Bit46 { get => this.Value >> 46 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 46)) | ((0x1 & value) << 46); }
-        public ulong Bit47 { get => this.Value >> 47 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 47)) | ((0x1 & value) << 47); }
-        public ulong Bit48 { get => this.Value >> 48 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 48)) | ((0x1 & value) << 48); }
-        public ulong Bit49 { get => this.Value >> 49 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 49)) | ((0x1 & value) << 49); }
-        public ulong Bit50 { get => this.Value >> 50 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 50)) | ((0x1 & value) << 50); }
-        public ulong Bit51 { get => this.Value >> 51 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 51)) | ((0x1 & value) << 51); }
-        public ulong Bit52 { get => this.Value >> 52 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 52)) | ((0x1 & value) << 52); }
-        public ulong Bit53 { get => this.Value >> 53 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 53)) | ((0x1 & value) << 53); }
-        public ulong Bit54 { get => this.Value >> 54 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 54)) | ((0x1 & value) << 54); }
-        public ulong Bit55 { get => this.Value >> 55 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 55)) | ((0x1 & value) << 55); }
-        public ulong Bit56 { get => this.Value >> 56 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 56)) | ((0x1 & value) << 56); }
-        public ulong Bit57 { get => this.Value >> 57 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 57)) | ((0x1 & value) << 57); }
-        public ulong Bit58 { get => this.Value >> 58 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 58)) | ((0x1 & value) << 58); }
-        public ulong Bit59 { get => this.Value >> 59 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 59)) | ((0x1 & value) << 59); }
-        public ulong Bit60 { get => this.Value >> 60 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 60)) | ((0x1 & value) << 60); }
-        public ulong Bit61 { get => this.Value >> 61 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 61)) | ((0x1 & value) << 61); }
-        public ulong Bit62 { get => this.Value >> 62 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 62)) | ((0x1 & value) << 62); }
-        public ulong Bit63 { get => this.Value >> 63 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 63)) | ((0x1 & value) << 63); }
-
-        public static implicit operator Int64BitStruct(ulong value) => new Int64BitStruct(value);
-        public static implicit operator Int64BitStruct(long value) => new Int64BitStruct(value);
-        public static implicit operator long(Int64BitStruct value) => (long)value.Value;
-        public static implicit operator ulong(Int64BitStruct value) => value.Value;
-        public static bool operator ==(Int64BitStruct first, Int64BitStruct second)
-        {
-            return first.Value == second.Value;
-        }
-
-        public static bool operator !=(Int64BitStruct first, Int64BitStruct second)
-        {
-            return first.Value != second.Value;
-        }
-
-        public static bool operator ==(Int64BitStruct first, ulong second)
-        {
-            return first.Value == second;
-        }
-
-        public static bool operator !=(Int64BitStruct first, ulong second)
-        {
-            return first.Value != second;
-        }
-
-        public static bool operator ==(Int64BitStruct first, long second)
-        {
-            unchecked
-            {
-                return first.Value == (ulong)second;
-            }
-        }
-
-        public static bool operator !=(Int64BitStruct first, long second)
-        {
-            unchecked
-            {
-                return first.Value != (ulong)second;
-            }
-        }
-
-        public static bool operator >=(Int64BitStruct first, Int64BitStruct second)
-        {
-            return first.Value >= second.Value;
-        }
-
-        public static bool operator <=(Int64BitStruct first, Int64BitStruct second)
-        {
-            return first.Value <= second.Value;
-        }
-
-        public static bool operator >=(Int64BitStruct first, long second)
-        {
-            unchecked
-            {
-                return first.Value >= (ulong)second;
-            }
-        }
-
-        public static bool operator <=(Int64BitStruct first, long second)
-        {
-            unchecked
-            {
-                return first.Value <= (ulong)second;
-            }
-        }
-
-        public static bool operator >=(Int64BitStruct first, ulong second)
-        {
-            unchecked
-            {
-                return first.Value >= second;
-            }
-        }
-
-        public static bool operator <=(Int64BitStruct first, ulong second)
-        {
-            unchecked
-            {
-                return first.Value <= second;
-            }
-        }
-
-        public bool Equals(Int64BitStruct other)
-        {
-            return this.Value == other.Value;
-        }
-
-        public override bool Equals(object obj)
-        {
-            if (obj is Int64BitStruct)
-            {
-                return this.Equals((Int64BitStruct)obj);
-            }
-            else
-            {
-                return base.Equals(obj);
-            }
-        }
-
-        public override int GetHashCode()
-        {
-            return this.Value.GetHashCode();
+            this.Value = (uint)low + ((ulong)high << 32);
         }
     }
+
+    public Int64BitStruct(long value)
+    {
+        unchecked
+        {
+            this.Value = (ulong)value;
+        }
+    }
+
+    public Int64BitStruct(ulong value)
+    {
+        this.Value = value;
+    }
+
+    public ulong Value { get; set; }
+    public uint Low { get => (uint)(this.Value & 0xFFFFFFFF); set => this.Value = (this.Value & ~(0xFFFFFFFF)) | (0xFFFFFFFF & value); }
+    public uint High { get => (uint)((this.Value >> 32) & 0xFFFFFFFF); set => this.Value = (this.Value & ~(0xFFFFFFFF00000000)) | ((ulong)(0xFFFFFFFF & value) << 32); }
+    public ulong Bit0 { get => this.Value & 0x1; set => this.Value = (this.Value & ~(0x1UL) | (0x1 & value)); }
+    public ulong Bit1 { get => this.Value >> 1 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 1)) | ((0x1 & value) << 1); }
+    public ulong Bit2 { get => this.Value >> 2 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 2)) | ((0x1 & value) << 2); }
+    public ulong Bit3 { get => this.Value >> 3 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 3)) | ((0x1 & value) << 3); }
+    public ulong Bit4 { get => this.Value >> 4 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 4)) | ((0x1 & value) << 4); }
+    public ulong Bit5 { get => this.Value >> 5 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 5)) | ((0x1 & value) << 5); }
+    public ulong Bit6 { get => this.Value >> 6 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 6)) | ((0x1 & value) << 6); }
+    public ulong Bit7 { get => this.Value >> 7 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 7)) | ((0x1 & value) << 7); }
+    public ulong Bit8 { get => this.Value >> 8 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 8)) | ((0x1 & value) << 8); }
+    public ulong Bit9 { get => this.Value >> 9 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 9)) | ((0x1 & value) << 9); }
+    public ulong Bit10 { get => this.Value >> 10 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 10)) | ((0x1 & value) << 10); }
+    public ulong Bit11 { get => this.Value >> 11 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 11)) | ((0x1 & value) << 11); }
+    public ulong Bit12 { get => this.Value >> 12 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 12)) | ((0x1 & value) << 12); }
+    public ulong Bit13 { get => this.Value >> 13 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 13)) | ((0x1 & value) << 13); }
+    public ulong Bit14 { get => this.Value >> 14 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 14)) | ((0x1 & value) << 14); }
+    public ulong Bit15 { get => this.Value >> 15 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 15)) | ((0x1 & value) << 15); }
+    public ulong Bit16 { get => this.Value >> 16 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 16)) | ((0x1 & value) << 16); }
+    public ulong Bit17 { get => this.Value >> 17 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 17)) | ((0x1 & value) << 17); }
+    public ulong Bit18 { get => this.Value >> 18 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 18)) | ((0x1 & value) << 18); }
+    public ulong Bit19 { get => this.Value >> 19 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 19)) | ((0x1 & value) << 19); }
+    public ulong Bit20 { get => this.Value >> 20 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 20)) | ((0x1 & value) << 20); }
+    public ulong Bit21 { get => this.Value >> 21 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 21)) | ((0x1 & value) << 21); }
+    public ulong Bit22 { get => this.Value >> 22 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 22)) | ((0x1 & value) << 22); }
+    public ulong Bit23 { get => this.Value >> 23 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 23)) | ((0x1 & value) << 23); }
+    public ulong Bit24 { get => this.Value >> 24 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 24)) | ((0x1 & value) << 24); }
+    public ulong Bit25 { get => this.Value >> 25 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 25)) | ((0x1 & value) << 25); }
+    public ulong Bit26 { get => this.Value >> 26 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 26)) | ((0x1 & value) << 26); }
+    public ulong Bit27 { get => this.Value >> 27 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 27)) | ((0x1 & value) << 27); }
+    public ulong Bit28 { get => this.Value >> 28 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 28)) | ((0x1 & value) << 28); }
+    public ulong Bit29 { get => this.Value >> 29 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 29)) | ((0x1 & value) << 29); }
+    public ulong Bit30 { get => this.Value >> 30 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 30)) | ((0x1 & value) << 30); }
+    public ulong Bit31 { get => this.Value >> 31 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 31)) | ((0x1 & value) << 31); }
+    public ulong Bit32 { get => this.Value >> 32 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 32)) | ((0x1 & value) << 32); }
+    public ulong Bit33 { get => this.Value >> 33 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 33)) | ((0x1 & value) << 33); }
+    public ulong Bit34 { get => this.Value >> 34 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 34)) | ((0x1 & value) << 34); }
+    public ulong Bit35 { get => this.Value >> 35 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 35)) | ((0x1 & value) << 35); }
+    public ulong Bit36 { get => this.Value >> 36 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 36)) | ((0x1 & value) << 36); }
+    public ulong Bit37 { get => this.Value >> 37 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 37)) | ((0x1 & value) << 37); }
+    public ulong Bit38 { get => this.Value >> 38 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 38)) | ((0x1 & value) << 38); }
+    public ulong Bit39 { get => this.Value >> 39 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 39)) | ((0x1 & value) << 39); }
+    public ulong Bit40 { get => this.Value >> 40 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 40)) | ((0x1 & value) << 40); }
+    public ulong Bit41 { get => this.Value >> 41 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 41)) | ((0x1 & value) << 41); }
+    public ulong Bit42 { get => this.Value >> 42 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 42)) | ((0x1 & value) << 42); }
+    public ulong Bit43 { get => this.Value >> 43 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 43)) | ((0x1 & value) << 43); }
+    public ulong Bit44 { get => this.Value >> 44 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 44)) | ((0x1 & value) << 44); }
+    public ulong Bit45 { get => this.Value >> 45 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 45)) | ((0x1 & value) << 45); }
+    public ulong Bit46 { get => this.Value >> 46 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 46)) | ((0x1 & value) << 46); }
+    public ulong Bit47 { get => this.Value >> 47 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 47)) | ((0x1 & value) << 47); }
+    public ulong Bit48 { get => this.Value >> 48 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 48)) | ((0x1 & value) << 48); }
+    public ulong Bit49 { get => this.Value >> 49 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 49)) | ((0x1 & value) << 49); }
+    public ulong Bit50 { get => this.Value >> 50 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 50)) | ((0x1 & value) << 50); }
+    public ulong Bit51 { get => this.Value >> 51 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 51)) | ((0x1 & value) << 51); }
+    public ulong Bit52 { get => this.Value >> 52 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 52)) | ((0x1 & value) << 52); }
+    public ulong Bit53 { get => this.Value >> 53 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 53)) | ((0x1 & value) << 53); }
+    public ulong Bit54 { get => this.Value >> 54 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 54)) | ((0x1 & value) << 54); }
+    public ulong Bit55 { get => this.Value >> 55 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 55)) | ((0x1 & value) << 55); }
+    public ulong Bit56 { get => this.Value >> 56 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 56)) | ((0x1 & value) << 56); }
+    public ulong Bit57 { get => this.Value >> 57 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 57)) | ((0x1 & value) << 57); }
+    public ulong Bit58 { get => this.Value >> 58 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 58)) | ((0x1 & value) << 58); }
+    public ulong Bit59 { get => this.Value >> 59 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 59)) | ((0x1 & value) << 59); }
+    public ulong Bit60 { get => this.Value >> 60 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 60)) | ((0x1 & value) << 60); }
+    public ulong Bit61 { get => this.Value >> 61 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 61)) | ((0x1 & value) << 61); }
+    public ulong Bit62 { get => this.Value >> 62 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 62)) | ((0x1 & value) << 62); }
+    public ulong Bit63 { get => this.Value >> 63 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 63)) | ((0x1 & value) << 63); }
+
+    public static implicit operator Int64BitStruct(ulong value) => new Int64BitStruct(value);
+    public static implicit operator Int64BitStruct(long value) => new Int64BitStruct(value);
+    public static implicit operator long(Int64BitStruct value) => (long)value.Value;
+    public static implicit operator ulong(Int64BitStruct value) => value.Value;
+    public static bool operator ==(Int64BitStruct first, Int64BitStruct second)
+    {
+        return first.Value == second.Value;
+    }
+
+    public static bool operator !=(Int64BitStruct first, Int64BitStruct second)
+    {
+        return first.Value != second.Value;
+    }
+
+    public static bool operator ==(Int64BitStruct first, ulong second)
+    {
+        return first.Value == second;
+    }
+
+    public static bool operator !=(Int64BitStruct first, ulong second)
+    {
+        return first.Value != second;
+    }
+
+    public static bool operator ==(Int64BitStruct first, long second)
+    {
+        unchecked
+        {
+            return first.Value == (ulong)second;
+        }
+    }
+
+    public static bool operator !=(Int64BitStruct first, long second)
+    {
+        unchecked
+        {
+            return first.Value != (ulong)second;
+        }
+    }
+
+    public static bool operator >=(Int64BitStruct first, Int64BitStruct second)
+    {
+        return first.Value >= second.Value;
+    }
+
+    public static bool operator <=(Int64BitStruct first, Int64BitStruct second)
+    {
+        return first.Value <= second.Value;
+    }
+
+    public static bool operator >=(Int64BitStruct first, long second)
+    {
+        unchecked
+        {
+            return first.Value >= (ulong)second;
+        }
+    }
+
+    public static bool operator <=(Int64BitStruct first, long second)
+    {
+        unchecked
+        {
+            return first.Value <= (ulong)second;
+        }
+    }
+
+    public static bool operator >=(Int64BitStruct first, ulong second)
+    {
+        unchecked
+        {
+            return first.Value >= second;
+        }
+    }
+
+    public static bool operator <=(Int64BitStruct first, ulong second)
+    {
+        unchecked
+        {
+            return first.Value <= second;
+        }
+    }
+
+    public bool Equals(Int64BitStruct other)
+    {
+        return this.Value == other.Value;
+    }
+
+    public override bool Equals(object obj)
+    {
+        if (obj is Int64BitStruct)
+        {
+            return this.Equals((Int64BitStruct)obj);
+        }
+        else
+        {
+            return base.Equals(obj);
+        }
+    }
+
+    public override int GetHashCode()
+    {
+        return this.Value.GetHashCode();
+    }
 }

SystemExtensions.NetStandard/SystemExtensions.NetStandard.csproj

@@ -2,13 +2,16 @@
 
   <PropertyGroup>
     <TargetFrameworks>netstandard2.0</TargetFrameworks>
+	  <LangVersion>latest</LangVersion>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
     <RootNamespace>System</RootNamespace>
-    <Version>1.3.0</Version>
+    <Version>1.9</Version>
     <Authors>Alexandru Macocian</Authors>
     <RepositoryUrl>https://github.com/AlexMacocian/SystemExtensions</RepositoryUrl>
+    <Description>Extensions for the System namespace</Description>
+    <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
@@ -16,6 +19,12 @@
       <Pack>True</Pack>
       <PackagePath></PackagePath>
     </None>
+    <None Include="..\.editorconfig" Link=".editorconfig" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
+    <PackageReference Include="System.Text.Json" Version="10.0.1" />
   </ItemGroup>
 
 </Project>

SystemExtensions.NetStandard/Threading/AsyncLazy.cs

@@ -0,0 +1,26 @@
+using System.Runtime.CompilerServices;
+using System.Threading.Tasks;
+
+namespace System;
+
+/// <summary>
+/// Async implementation of <see cref="Lazy{T}"/>.
+/// </summary>
+/// <remarks>
+/// Credits: https://devblogs.microsoft.com/pfxteam/asynclazyt/
+/// </remarks>
+/// <typeparam name="T">Type of value to be returned.</typeparam>
+public sealed class AsyncLazy<T> : Lazy<Task<T>>
+{
+    public TaskAwaiter<T> GetAwaiter() => this.Value.GetAwaiter();
+
+    public AsyncLazy(Func<T> valueFactory)
+        : base(() => Task.Factory.StartNew(valueFactory))
+    {
+    }
+
+    public AsyncLazy(Func<Task<T>> taskFactory)
+        : base(() => Task.Factory.StartNew(() => taskFactory()).Unwrap())
+    {
+    }
+}

SystemExtensions.NetStandard/Threading/SemaphoreSlimContext.cs

@@ -0,0 +1,30 @@
+using System.Extensions;
+using System.Threading.Tasks;
+
+namespace System.Threading;
+public readonly struct SemaphoreSlimContext : IDisposable
+{
+    private readonly SemaphoreSlim semaphore;
+
+    private SemaphoreSlimContext(SemaphoreSlim semaphoreSlim)
+    {
+        this.semaphore = semaphoreSlim.ThrowIfNull(nameof(semaphoreSlim));
+    }
+
+    public void Dispose()
+    {
+        this.semaphore.Release();
+    }
+
+    public static async Task<SemaphoreSlimContext> Create(SemaphoreSlim semaphore)
+    {
+        await semaphore.ThrowIfNull(nameof(semaphore)).WaitAsync();
+        return new SemaphoreSlimContext(semaphore);
+    }
+
+    public static async Task<SemaphoreSlimContext> Create(SemaphoreSlim semaphore, CancellationToken cancellationToken)
+    {
+        await semaphore.ThrowIfNull(nameof(semaphore)).WaitAsync(cancellationToken);
+        return new SemaphoreSlimContext(semaphore);
+    }
+}

SystemExtensions.NetStandard/WebSockets/ClientWebSocket.cs

@@ -0,0 +1,98 @@
+using Microsoft.Extensions.Logging;
+using System.Extensions;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace System.Net.WebSockets;
+
+// TODO: Cannot properly test because ClientWebSocket is sealed
+public sealed class ClientWebSocket<TScope> : IClientWebSocket<TScope>, IDisposable
+{
+    private readonly ILogger<TScope>? logger;
+    private ClientWebSocket internalWebSocket = new();
+
+    public ClientWebSocketOptions Options => this.internalWebSocket.Options;
+
+    public WebSocketCloseStatus? CloseStatus => this.internalWebSocket.CloseStatus;
+
+    public string CloseStatusDescription => this.internalWebSocket.CloseStatusDescription;
+
+    public string SubProtocol => this.internalWebSocket.SubProtocol;
+
+    public WebSocketState State => this.internalWebSocket.State;
+
+    public ClientWebSocket()
+    {
+    }
+
+    public ClientWebSocket(ILogger<TScope> logger)
+    {
+        this.logger = logger.ThrowIfNull(nameof(logger));
+    }
+
+    public ClientWebSocket(ClientWebSocket clientWebSocket, ILogger<TScope> logger)
+    {
+        this.internalWebSocket = clientWebSocket.ThrowIfNull(nameof(clientWebSocket));
+        this.logger = logger.ThrowIfNull(nameof(logger));
+    }
+
+    public void Dispose()
+    {
+        var scopedLogger = this.logger?.CreateScopedLogger(nameof(Dispose), string.Empty);
+        scopedLogger?.LogDebug($"Disposing websocket");
+        this.internalWebSocket?.Dispose();
+    }
+
+    public void Abort()
+    {
+        var scopedLogger = this.logger?.CreateScopedLogger(nameof(Abort), string.Empty);
+        scopedLogger?.LogDebug($"Aborting websocket");
+        this.internalWebSocket.Abort();
+    }
+
+    public Task CloseAsync(WebSocketCloseStatus closeStatus, string statusDescription, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger?.CreateScopedLogger(nameof(CloseAsync), string.Empty);
+        scopedLogger?.LogDebug($"Closing websocket. Status [{closeStatus}]. Status Description [{statusDescription}]");
+        return this.internalWebSocket.CloseAsync(closeStatus, statusDescription, cancellationToken);
+    }
+
+    public Task CloseOutputAsync(WebSocketCloseStatus closeStatus, string statusDescription, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger?.CreateScopedLogger(nameof(CloseOutputAsync), string.Empty);
+        scopedLogger?.LogDebug($"Closing output. Status [{closeStatus}]. Status Description [{statusDescription}]");
+        return this.internalWebSocket.CloseOutputAsync(closeStatus, statusDescription, cancellationToken);
+    }
+
+    public Task ConnectAsync(Uri uri, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger?.CreateScopedLogger(nameof(ConnectAsync), string.Empty);
+        scopedLogger?.LogDebug($"Connecting to {uri}");
+        return this.internalWebSocket.ConnectAsync(uri, cancellationToken);
+    }
+
+    public async Task<WebSocketReceiveResult> ReceiveAsync(ArraySegment<byte> buffer, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger?.CreateScopedLogger(nameof(ConnectAsync), string.Empty);
+        scopedLogger?.LogDebug($"Attempting to receive bytes");
+        var result = await this.internalWebSocket.ReceiveAsync(buffer, cancellationToken);
+        scopedLogger?.LogDebug($"Received message [{result.MessageType}]");
+        scopedLogger?.LogDebug($"Type: {result.MessageType}\nCount: {result.Count}\nEndOfMessage: {result.EndOfMessage}\nCloseStatus: {result.CloseStatus}\nCloseStatusDescription: {result.CloseStatusDescription}");
+
+        return result;
+    }
+
+    public Task SendAsync(ArraySegment<byte> buffer, WebSocketMessageType messageType, bool endOfMessage, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger?.CreateScopedLogger(nameof(SendAsync), string.Empty);
+        scopedLogger?.LogDebug($"Sending bytes");
+        scopedLogger?.LogDebug($"Type: {messageType}\nCount: {buffer.Count}\nEndOfMessage: {endOfMessage}");
+        return this.internalWebSocket.SendAsync(buffer, messageType, endOfMessage, cancellationToken);
+    }
+
+    public void RefreshSocket(ClientWebSocket? clientWebSocket = null)
+    {
+        this.internalWebSocket?.Dispose();
+        this.internalWebSocket = clientWebSocket ?? new ClientWebSocket();
+    }
+}

SystemExtensions.NetStandard/WebSockets/IClientWebSocket.cs

@@ -0,0 +1,33 @@
+using System.Threading.Tasks;
+using System.Threading;
+
+namespace System.Net.WebSockets;
+
+public interface IClientWebSocket<TScope>
+{
+    WebSocketCloseStatus? CloseStatus { get; }
+    
+    string CloseStatusDescription { get; }
+    
+    ClientWebSocketOptions Options { get; }
+    
+    WebSocketState State { get; }
+    
+    string SubProtocol { get; }
+
+    void Abort();
+
+    Task CloseAsync(WebSocketCloseStatus closeStatus, string statusDescription, CancellationToken cancellationToken);
+
+    Task CloseOutputAsync(WebSocketCloseStatus closeStatus, string statusDescription, CancellationToken cancellationToken);
+
+    Task ConnectAsync(Uri uri, CancellationToken cancellationToken);
+
+    void Dispose();
+
+    Task<WebSocketReceiveResult> ReceiveAsync(ArraySegment<byte> buffer, CancellationToken cancellationToken);
+
+    Task SendAsync(ArraySegment<byte> buffer, WebSocketMessageType messageType, bool endOfMessage, CancellationToken cancellationToken);
+
+    void RefreshSocket(ClientWebSocket? clientWebSocket = default);
+}

SystemExtensions.Tests/Collections/AVLTreeTests.cs

@@ -3,153 +3,125 @@ using System.Collections.Generic;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.IO;
 
-namespace System.Collections.Tests
+namespace System.Collections.Tests;
+
+[TestClass()]
+public class AVLTreeTests
 {
-    [TestClass()]
-    public class AVLTreeTests
+    private AVLTree<int> avlTree = new AVLTree<int>();
+    [TestMethod()]
+    public void AVLTreeTest()
     {
-        private AVLTree<int> avlTree = new AVLTree<int>();
-        [TestMethod()]
-        public void AVLTreeTest()
-        {
-            avlTree = new AVLTree<int>();
-        }
+        this.avlTree = new AVLTree<int>();
+    }
 
-        [TestMethod()]
-        public void AddTest()
+    [TestMethod()]
+    public void AddTest()
+    {
+        try
         {
-            try
+            for (var i = 0; i < 100; i++)
             {
-                for (int i = 0; i < 100; i++)
-                {
-                    avlTree.Add(i * 20 - (50 + i));
-                }
-            }
-            catch (Exception e)
-            {
-                Assert.Fail(e.Message + "\n" + e.StackTrace);
-            }
-            if (avlTree.Count != 100)
-            {
-                Assert.Fail();
+                this.avlTree.Add(i * 20 - (50 + i));
             }
         }
-
-        [TestMethod()]
-        public void ContainsTest()
+        catch (Exception e)
         {
-            for (int i = 0; i < 100; i++)
-            {
-                avlTree.Add(i);
-            }
-
-            if (!avlTree.Contains(50))
-            {
-                Assert.Fail();
-            }
+            Assert.Fail(e.Message + "\n" + e.StackTrace);
         }
 
-        [TestMethod()]
-        public void RemoveTest()
+        if (this.avlTree.Count != 100)
         {
-            for (int i = 0; i < 100; i++)
-            {
-                avlTree.Add(i);
-            }
-
-            avlTree.Remove(50);
-
-            if (avlTree.Contains(50))
-            {
-                Assert.Fail();
-            }
-        }
-
-        [TestMethod()]
-        public void ClearTest()
-        {
-            for (int i = 0; i < 100; i++)
-            {
-                avlTree.Add(i);
-            }
-            avlTree.Clear();
-            if(avlTree.Count > 0)
-            {
-                Assert.Fail();
-            }
-        }
-
-        [TestMethod()]
-        public void CopyToTest()
-        {
-            for (int i = 0; i < 100; i++)
-            {
-                avlTree.Add(i);
-            }
-
-            int[] array = new int[100];
-            avlTree.CopyTo(array, 0);
-        }
-
-        [TestMethod()]
-        public void GetEnumeratorTest()
-        {
-            for (int i = 0; i < 100; i++)
-            {
-                avlTree.Add(i);
-            }
-            int count = 0;
-            foreach(int value in avlTree)
-            {
-                count++;
-                System.Diagnostics.Debug.WriteLine(value);
-            }
-
-            if(count != avlTree.Count)
-            {
-                Assert.Fail();
-            }
-        }
-
-        [TestMethod()]
-        public void ToArrayTest()
-        {
-            for (int i = 0; i < 100; i++)
-            {
-                avlTree.Add(i);
-            }
-
-            int[] array = avlTree.ToArray();
-        }
-
-        [TestMethod()]
-        public void Serialize()
-        {
-            AVLTree<int> avlTree2 = new AVLTree<int>();
-            for (int i = 0; i < 100; i++)
-            {
-                avlTree.Add(i);
-            }
-            BinaryFormatter serializer = new BinaryFormatter();
-            string s = string.Empty;
-            using (var stream = new MemoryStream())
-            {
-                serializer.Serialize(stream, avlTree);
-                stream.Position = 0;
-                avlTree2 = (AVLTree<int>)serializer.Deserialize(stream);
-            }
-            IEnumerator<int> avlTreeEnum = avlTree.GetEnumerator();
-            IEnumerator<int> avlTree2Enum = avlTree2.GetEnumerator();
-            
-            for(int i = 0; i < 100; i++)
-            {
-                if(avlTreeEnum.Current != avlTree2Enum.Current)
-                {
-                    Assert.Fail();
-                }
-                avlTreeEnum.MoveNext();
-                avlTree2Enum.MoveNext();
-            }
+            Assert.Fail();
         }
     }
+
+    [TestMethod()]
+    public void ContainsTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        if (!this.avlTree.Contains(50))
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void RemoveTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        this.avlTree.Remove(50);
+
+        if (this.avlTree.Contains(50))
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ClearTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        this.avlTree.Clear();
+        if(this.avlTree.Count > 0)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void CopyToTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        var array = new int[100];
+        this.avlTree.CopyTo(array, 0);
+    }
+
+    [TestMethod()]
+    public void GetEnumeratorTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        var count = 0;
+        foreach(var value in this.avlTree)
+        {
+            count++;
+            System.Diagnostics.Debug.WriteLine(value);
+        }
+
+        if(count != this.avlTree.Count)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ToArrayTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        _ = this.avlTree.ToArray();
+    }
 }

SystemExtensions.Tests/Collections/BinaryHeapTests.cs

@@ -3,200 +3,180 @@ using System.Collections.Generic;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.IO;
 
-namespace System.Collections.Tests
+namespace System.Collections.Tests;
+
+[TestClass()]
+public class BinaryHeapTests
 {
-    [TestClass()]
-    public class BinaryHeapTests
+    private BinaryHeap<int> binaryHeap = new BinaryHeap<int>();
+    [TestMethod()]
+    public void BinaryHeapTest()
     {
-        private BinaryHeap<int> binaryHeap = new BinaryHeap<int>();
-        [TestMethod()]
-        public void BinaryHeapTest()
+        this.binaryHeap = new BinaryHeap<int>();
+    }
+
+    [TestMethod()]
+    public void BinaryHeapTest1()
+    {
+        this.binaryHeap = new BinaryHeap<int>(100);
+        if (this.binaryHeap.Count != 0 && this.binaryHeap.Capacity != 100)
         {
-            binaryHeap = new BinaryHeap<int>();
-        }
-
-        [TestMethod()]
-        public void BinaryHeapTest1()
-        {
-            binaryHeap = new BinaryHeap<int>(100);
-            if (binaryHeap.Count != 0 && binaryHeap.Capacity != 100)
-            {
-                Assert.Fail();
-            }
-        }
-
-        [TestMethod()]
-        [Timeout(500)]
-        public void InsertTest()
-        {
-            try
-            {
-                for (int i = 0; i < 100; i++)
-                {
-                    binaryHeap.Add(i * 20 - (50 + i));
-                }
-            }
-            catch (Exception e)
-            {
-                Assert.Fail(e.Message + "\n" + e.StackTrace);
-            }
-            if (binaryHeap.Count != 100)
-            {
-                Assert.Fail();
-            }
-        }
-
-        [TestMethod()]
-        [Timeout(500)]
-        public void DeleteMinTest()
-        {
-            try
-            {
-                int tries = binaryHeap.Count;
-                while (binaryHeap.Count > 0)
-                {
-                    if (tries == 0)
-                    {
-                        Assert.Fail();
-                    }
-                    System.Diagnostics.Debug.WriteLine(binaryHeap.Remove());
-                    tries--;
-                }
-            }
-            catch (Exception e)
-            {
-                Assert.Fail(e.Message + "\n" + e.StackTrace);
-            }
-        }
-
-        [TestMethod()]
-        public void MinMaxTest()
-        {
-            for (int i = 0; i < 1000; i++)
-            {
-                binaryHeap.Add(i);
-            }
-            if (binaryHeap.Min != 0 || binaryHeap.Max != 999)
-            {
-                Assert.Fail();
-            }
-        }
-
-        [TestMethod()]
-        public void ClearTest()
-        {
-            for (int i = 0; i < 100; i++)
-            {
-                binaryHeap.Add(i);
-            }
-            binaryHeap.Clear();
-            if (binaryHeap.Count > 0 || binaryHeap.Capacity != 160)
-            {
-                Assert.Fail();
-            }
-        }
-
-        [TestMethod()]
-        public void ClearTest2()
-        {
-            for (int i = 100; i < 200; i++)
-            {
-                binaryHeap.Add(i);
-            }
-            binaryHeap.Clear(false);
-            int[] array = binaryHeap.ToArray();
-            if (binaryHeap.Count > 0 || binaryHeap.Capacity == 10)
-            {
-                Assert.Fail();
-            }
-            if (array.Length != 0)
-            {
-                Assert.Fail();
-            }
-            binaryHeap.Clear(true);
-            if (binaryHeap.Capacity != 10 || binaryHeap.Count != 0)
-            {
-                Assert.Fail();
-            }
-        }
-
-        [TestMethod()]
-        public void ContainsTest()
-        {
-            binaryHeap.Add(100);
-            if (!binaryHeap.Contains(100))
-            {
-                Assert.Fail();
-            }
-        }
-
-        [TestMethod()]
-        public void ToArrayTest()
-        {
-            for(int i = 0; i < 1000; i++)
-            {
-                binaryHeap.Add(i);
-            }
-            int[] array = binaryHeap.ToArray();
-            if(array.Length != binaryHeap.Count)
-            {
-                Assert.Fail();
-            }
-            if(array[0] != 0 && array[999] != 999)
-            {
-                Assert.Fail();
-            }
-        }
-
-        [TestMethod()]
-        public void GetEnumeratorTest()
-        {
-            for (int i = 0; i < 1000; i++)
-            {
-                binaryHeap.Add(i);
-            }
-            int count = 0;
-            foreach(int value in binaryHeap)
-            {
-                System.Diagnostics.Debug.WriteLine(value);
-                count++;
-            }
-
-            if(count == binaryHeap.Count)
-            {
-                return;
-            }
-
             Assert.Fail();
         }
+    }
 
-        [TestMethod()]
-        public void Serialize()
+    [TestMethod()]
+    [Timeout(500)]
+    public void InsertTest()
+    {
+        try
         {
-            BinaryHeap<int> binaryHeap2 = new BinaryHeap<int>();
-            for (int i = 0; i < 100; i++)
+            for (var i = 0; i < 100; i++)
             {
-                binaryHeap.Add(i);
+                this.binaryHeap.Add(i * 20 - (50 + i));
             }
-            BinaryFormatter serializer = new BinaryFormatter();
-            string s = string.Empty;
-            using (var stream = new MemoryStream()) {
-                serializer.Serialize(stream, binaryHeap);
-                stream.Position = 0;
-                binaryHeap2 = (BinaryHeap<int>)serializer.Deserialize(stream);
-            }
-            IEnumerator<int> binaryHeapEnum = binaryHeap.GetEnumerator();
-            IEnumerator<int> binaryHeapEnum2 = binaryHeap2.GetEnumerator();
+        }
+        catch (Exception e)
+        {
+            Assert.Fail(e.Message + "\n" + e.StackTrace);
+        }
 
-            for (int i = 0; i < 100; i++)
+        if (this.binaryHeap.Count != 100)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    [Timeout(500)]
+    public void DeleteMinTest()
+    {
+        try
+        {
+            var tries = this.binaryHeap.Count;
+            while (this.binaryHeap.Count > 0)
             {
-                if (binaryHeapEnum.Current != binaryHeapEnum2.Current)
+                if (tries == 0)
                 {
                     Assert.Fail();
                 }
-                binaryHeapEnum.MoveNext();
-                binaryHeapEnum2.MoveNext();
+
+                System.Diagnostics.Debug.WriteLine(this.binaryHeap.Remove());
+                tries--;
             }
         }
+        catch (Exception e)
+        {
+            Assert.Fail(e.Message + "\n" + e.StackTrace);
+        }
+    }
+
+    [TestMethod()]
+    public void MinMaxTest()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        if (this.binaryHeap.Min != 0 || this.binaryHeap.Max != 999)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ClearTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        this.binaryHeap.Clear();
+        if (this.binaryHeap.Count > 0 || this.binaryHeap.Capacity != 160)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ClearTest2()
+    {
+        for (var i = 100; i < 200; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        this.binaryHeap.Clear(false);
+        var array = this.binaryHeap.ToArray();
+        if (this.binaryHeap.Count > 0 || this.binaryHeap.Capacity == 10)
+        {
+            Assert.Fail();
+        }
+
+        if (array.Length != 0)
+        {
+            Assert.Fail();
+        }
+
+        this.binaryHeap.Clear(true);
+        if (this.binaryHeap.Capacity != 10 || this.binaryHeap.Count != 0)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ContainsTest()
+    {
+        this.binaryHeap.Add(100);
+        if (!this.binaryHeap.Contains(100))
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ToArrayTest()
+    {
+        for(var i = 0; i < 1000; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        var array = this.binaryHeap.ToArray();
+        if(array.Length != this.binaryHeap.Count)
+        {
+            Assert.Fail();
+        }
+
+        if(array[0] != 0 && array[999] != 999)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void GetEnumeratorTest()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        var count = 0;
+        foreach(var value in this.binaryHeap)
+        {
+            System.Diagnostics.Debug.WriteLine(value);
+            count++;
+        }
+
+        if(count == this.binaryHeap.Count)
+        {
+            return;
+        }
+
+        Assert.Fail();
     }
 }

SystemExtensions.Tests/Collections/CircularBufferTests.cs

@@ -0,0 +1,395 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace System.Collections.Tests;
+
+[TestClass]
+public class CircularBufferTests
+{
+    [TestMethod]
+    public void Constructor_WithCapacity_RespectsCapacity()
+    {
+        var buffer = new CircularBuffer<int>(10);
+        
+        buffer.Count.Should().Be(0);
+
+        for (var i = 0; i < 11; i++)
+        {
+            buffer.Add(i);
+        }
+
+        buffer.Count.Should().Be(10);
+    }
+
+    [TestMethod]
+    public void Constructor_WithBuffer_ReturnsExpectedElements()
+    {
+        var array = new int[10];
+        for(var i = 0; i < 10; i++)
+        {
+            array[i] = i;
+        }
+
+        var buffer = new CircularBuffer<int>(array, 0, 9);
+
+        buffer.Count.Should().Be(10);
+        buffer.Should().BeEquivalentTo(array);
+    }
+
+    [TestMethod]
+    public void Constructor_WithBuffer_RespectsOrder()
+    {
+        var expectedArray = new int[] { 3, 4, 5, 6, 7, 8, 9, 0, 1, 2 };
+        var array = new int[10] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+
+        var buffer = new CircularBuffer<int>(array, 3, 2);
+
+        buffer.Count.Should().Be(10);
+        buffer.Should().BeEquivalentTo(expectedArray);
+    }
+
+    [TestMethod]
+    public void Constructor_WithBuffer_RespectsInternalBuffer()
+    {
+        var buffer = new CircularBuffer<int>(new int[] { 0, 1, 2, 3, 4, 5 });
+
+        buffer.Count.Should().Be(6);
+        buffer.Should().BeEquivalentTo(new int[] { 0, 1, 2, 3, 4, 5 });
+    }
+
+    [TestMethod]
+    public void AddItem_AddsItem()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            1
+        };
+
+        buffer.Should().HaveCount(1);
+        buffer.First().Should().Be(1);
+    }
+
+    [TestMethod]
+    public void AddItem_AddsItem_RespectsCapacity()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+            10
+        };
+
+        buffer.Add(0);
+
+        buffer.Should().HaveCount(10);
+        buffer.Last().Should().Be(0);
+        buffer.First().Should().Be(2);
+    }
+
+    [TestMethod]
+    public void RemoveItem_RemovesDesiredItem()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+            10
+        };
+
+        var result = buffer.Remove(5);
+
+        result.Should().BeTrue();
+        buffer.Count.Should().Be(9);
+        buffer.Should().BeEquivalentTo(new int[] { 1, 2, 3, 4, 6, 7, 8, 9, 10 });
+    }
+
+    [TestMethod]
+    public void RemoveItem_UnknownItem_DoesNotRemoveItem()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+            10
+        };
+
+        var result = buffer.Remove(15);
+
+        result.Should().BeFalse();
+        buffer.Count.Should().Be(10);
+        buffer.Should().BeEquivalentTo(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 });
+    }
+
+    [TestMethod]
+    public void Contains_ItemExists_ReturnsTrue()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+            10
+        };
+
+        var result = buffer.Contains(5);
+
+        result.Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void Contains_ItemDoesNotExists_ReturnsFalse()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+            10
+        };
+
+        var result = buffer.Contains(15);
+
+        result.Should().BeFalse();
+    }
+
+    [TestMethod]
+    public void Clear_ClearsBuffer()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+            10
+        };
+
+        buffer.Clear();
+
+        buffer.Count.Should().Be(0);
+        buffer.Should().BeEquivalentTo(Array.Empty<int>());
+    }
+
+    [TestMethod]
+    public void DeepClear_ClearsBuffer()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+            10
+        };
+
+        buffer.DeepClear();
+
+        buffer.Count.Should().Be(0);
+        buffer.Should().BeEquivalentTo(Array.Empty<int>());
+    }
+
+    [TestMethod]
+    public void Insert_FullBuffer_ThrowsException()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+            10
+        };
+
+        var action = () =>
+        {
+            buffer.Insert(0, 1);
+        };
+
+        action.Should().Throw<InvalidOperationException>();
+    }
+
+    [TestMethod]
+    public void Insert_ShouldInsertItemAtPosition()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+        };
+
+        buffer.Insert(0, 0);
+
+        buffer.Should().BeEquivalentTo(new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 });
+    }
+
+    [TestMethod]
+    public void RemoveAt_RemovesExpectedItem()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            0,
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+        };
+
+        buffer.RemoveAt(0);
+
+        buffer.Should().BeEquivalentTo(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 });
+    }
+
+    [TestMethod]
+    public void Indexer_ReturnsExpectedItem()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            0,
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+        };
+
+        buffer[5].Should().Be(5);
+    }
+
+    [TestMethod]
+    public void Indexer_SetsExpectedItem()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            0,
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+        };
+
+        buffer[6] = 5;
+
+        buffer.Should().BeEquivalentTo(new int[] { 0, 1, 2, 3, 4, 5, 5, 7, 8, 9 });
+    }
+
+    [TestMethod]
+    public void CircularBuffer_AddAndRemoveOperations_PerformAsExpected()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            0,
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+        };
+
+        buffer.Add(10);
+        buffer.Remove(9);
+        buffer.RemoveAt(5);
+        buffer.Add(11);
+
+        buffer.Should().BeEquivalentTo(new int[] { 1, 2, 3, 4, 5, 7, 8, 10, 11 });
+    }
+
+    [TestMethod]
+    public void CircularBuffer_AddItems_RotatesBuffer()
+    {
+        var buffer = new CircularBuffer<int>(10)
+        {
+            0,
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            9,
+        };
+
+        for(var i = 0; i < 10; i++)
+        {
+            buffer.Add(i + 10);
+        }
+
+        buffer.Should().BeEquivalentTo(new int[] { 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 });
+    }
+}