FastGenericNew.SourceGenerator 3.3.1

dotnet add package FastGenericNew.SourceGenerator --version 3.3.1                
NuGet\Install-Package FastGenericNew.SourceGenerator -Version 3.3.1                
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.SourceGenerator" Version="3.3.1">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
</PackageReference>                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FastGenericNew.SourceGenerator --version 3.3.1                
#r "nuget: FastGenericNew.SourceGenerator, 3.3.1"                
#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.SourceGenerator as a Cake Addin
#addin nuget:?package=FastGenericNew.SourceGenerator&version=3.3.1

// Install FastGenericNew.SourceGenerator as a Cake Tool
#tool nuget:?package=FastGenericNew.SourceGenerator&version=3.3.1                

FastGenericNew Tests alternate text is missing from this package README image alternate text is missing from this package README image

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

✨ Features

  • ✔️ The best CreateInstance ever

    • Up to 50x faster than Activator.CreateInstance<T>
    • Generic Parameters Support
    • Zero boxing/unboxing
    • TryGetValue-like TryFastNew API
    • Link Mode PublishTrimmed Support
    • Non-Public Constructor Support
    • No Generic Constraints
    • Compatible with .NET Standard 2.0
    • Multiple backend implementations
    • Heavily tested on Win/Mac/Linux
  • 🪛 Modern Compiler Integration

    • Source Generator v2 (Incremental Generator)
    • Highly Configurable (Props)
    • Multi-threaded Generation
  • 🔥 Latest C#/.NET Features Support

🔧 Installation

You should only use one of them

Pre-Compiled Version

dotnet add package FastGenericNew --version 3.3.0
<ItemGroup>
  <PackageReference Include="FastGenericNew" Version="3.3.0" />
</ItemGroup>

SourceGenerator Version

dotnet add package FastGenericNew.SourceGenerator --version 3.3.0
<ItemGroup>
  <PackageReference Include="FastGenericNew.SourceGenerator" Version="3.3.0" />
</ItemGroup>
SourceGeneratorV2 requires

.NET Standard 2.0 or above
C# 8.0 or above
Roslyn 4.0.1 or above
Modern IDE (Optional) [VS2022, Rider, VSCode]

📖 Examples

using FastGenericNew;

// Simply replace 'Activator' to 'FastNew'
var obj = FastNew.CreateInstance<T>();

// With parameter(s)
var obj2 = FastNew.CreateInstance<T, string>("text");
var obj3 = FastNew.CreateInstance<T, string, int>("text", 0);

// Try pattern
// NOTE: The try pattern will only check if the constructor can be called.
//       It will not catch or handle any exceptions thrown in the constructor.
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 using 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.

There are no supported framework assets in this package.

Learn more about Target Frameworks and .NET Standard.

  • .NETStandard 2.0

    • No dependencies.

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
3.3.1 192 8/15/2024
3.3.0 120 8/15/2024
3.1.0-preview1 1,792 3/18/2022
3.0.0-preview2.1 125 3/12/2022
3.0.0-preview2 149 3/6/2022
3.0.0-preview1 144 3/5/2022