FastGenericNew 3.0.0-preview1

.NET 5.0 This package targets .NET 5.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.6.1 This package targets .NET Framework 4.6.1. The package is compatible with this framework or higher.
This is a prerelease version of FastGenericNew.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package FastGenericNew --version 3.0.0-preview1                

                    
                

            
NuGet\Install-Package FastGenericNew -Version 3.0.0-preview1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="FastGenericNew" Version="3.0.0-preview1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add FastGenericNew --version 3.0.0-preview1                

                    
                

            
#r "nuget: FastGenericNew, 3.0.0-preview1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
// Install FastGenericNew as a Cake Addin
#addin nuget:?package=FastGenericNew&version=3.0.0-preview1&prerelease

// Install FastGenericNew as a Cake Tool
#tool nuget:?package=FastGenericNew&version=3.0.0-preview1&prerelease

FastGenericNew (3.0.0 Preview 1)

The ultimate fast alternative to Activator.CreateInstance<T> / new T()

Features

  • A way better CreateInstance

    • Up to 50x faster than Activator.CreateInstance<T>
    • Generic Parameters Support
    • Non-Public Constructor Support
    • Zero boxing/unboxing
    • No Generic Constraints
    • TryGetValue-like TryFastNew API
    • Link Mode PublishTrimmed Support

  • Modern Compiler Integration

    • Source Generator v2 (Incremental Generator)
    • Highly Configurable
    • Multi-threaded Generation

  • Lastest C# Features Support

Installation

You can only use one of them

Pre-Compiled Version

dotnet add package FastGenericNew --version 3.0.0-preview1

<ItemGroup>
  <PackageReference Include="FastGenericNew" Version="3.0.0-preview1" />
</ItemGroup>

SourceGenerator Version

dotnet add package FastGenericNew.SourceGenerator --version 3.0.0-preview1

<ItemGroup>
  <PackageReference Include="FastGenericNew.SourceGenerator" Version="3.0.0-preview1" />
</ItemGroup>

Examples

using FastGenericNew;

FastNew.CreateInstance<T>();

// With parameter(s)
FastNew.CreateInstance<T, string>("text");
FastNew.CreateInstance<T, string, int>("text", 0);

// Try 
if (FastNew.TryCreateInstance<T, string>("arg0", out T result));
{
    // ...
}

Notes

With .NET Framework, Activator.CreateInstance<T>() invokes the parameterless constructor of ValueType if
the constraint is where T : new() but appears to ignore the parameterless constructor if the constraint is where T : struct.
But FastNew.CreateInstance<T>() will always invoke the parameterless constructor if it's available.

If you don't want to invoke the parameterless constructor of ValueType.
Consider to use FastNew.NewOrDefault<T>() which will never invoke the parameterless constructor of ValueType

Benchmark

Environment

BenchmarkDotNet=v0.13.1, OS=Windows 10.0.22000
AMD Ryzen 9 3900X, 1 CPU, 24 logical and 12 physical cores
.NET SDK=6.0.200-preview.22055.15
  [Host]             : .NET 6.0.2 (6.0.222.6406), X64 RyuJIT
  .NET 5.0           : .NET 5.0.14 (5.0.1422.5710), X64 RyuJIT
  .NET 6.0           : .NET 6.0.2 (6.0.222.6406), X64 RyuJIT
  .NET Framework 4.8 : .NET Framework 4.8 (4.8.4470.0), X64 RyuJIT

Reference Types

Benchmark Result of Reference Types

Value Types

Benchmark Result of Value Types

License

FastGenericNew is licensed under the MIT license.

Product Compatible and additional computed target framework versions.
.NET net5.0 is compatible.  net5.0-windows was computed.  net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 is compatible. 
.NET Framework net461 is compatible.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
3.3.1 1,564 8/15/2024
3.3.0 158 8/15/2024
3.1.0-preview1 8,913 3/18/2022
3.0.0-preview2.1 141 3/12/2022
3.0.0-preview2 182 3/6/2022
3.0.0-preview1 175 3/5/2022