FastGenericNew.SourceGenerator 3.1.0-preview1

This is a prerelease version of FastGenericNew.SourceGenerator.
NuGet\Install-Package FastGenericNew.SourceGenerator -Version 3.1.0-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.
dotnet add package FastGenericNew.SourceGenerator --version 3.1.0-preview1
<PackageReference Include="FastGenericNew.SourceGenerator" Version="3.1.0-preview1">
  <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 3.1.0-preview1
#r "nuget: FastGenericNew.SourceGenerator, 3.1.0-preview1"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. 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=3.1.0-preview1&prerelease

// Install FastGenericNew.SourceGenerator as a Cake Tool
#tool nuget:?package=FastGenericNew.SourceGenerator&version=3.1.0-preview1&prerelease

FastGenericNew V3 Tests

The ultimate fast 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
  • Modern Compiler Integration

    • Source Generator v2 (Incremental Generator)
    • Highly Configurable (Props)
    • Multi-threaded Generation
  • Lastest C# Features Support

Installation

You should only use one of them

Pre-Compiled Version

dotnet add package FastGenericNew --version 3.1.0-preview1
<ItemGroup>
  <PackageReference Include="FastGenericNew" Version="3.1.0-preview1" />
</ItemGroup>

SourceGenerator Version

dotnet add package FastGenericNew.SourceGenerator --version 3.1.0-preview1
<ItemGroup>
  <PackageReference Include="FastGenericNew.SourceGenerator" Version="3.1.0-preview1" />
</ItemGroup>

.NET Standard 2.0 & C# 8.0 or above is required for SourceGenerator version

Examples

using FastGenericNew;

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
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.

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
3.1.0-preview1 192 3/18/2022
3.0.0-preview2.1 56 3/12/2022
3.0.0-preview2 56 3/6/2022
3.0.0-preview1 49 3/5/2022