N.SourceGenerators.UnionTypes 0.3.0

There is a newer version of this package available.
See the version list below for details.
dotnet add package N.SourceGenerators.UnionTypes --version 0.3.0
                    
NuGet\Install-Package N.SourceGenerators.UnionTypes -Version 0.3.0
                    
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="N.SourceGenerators.UnionTypes" Version="0.3.0" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="N.SourceGenerators.UnionTypes" Version="0.3.0" />
                    
Directory.Packages.props
<PackageReference Include="N.SourceGenerators.UnionTypes" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add N.SourceGenerators.UnionTypes --version 0.3.0
                    
#r "nuget: N.SourceGenerators.UnionTypes, 0.3.0"
                    
#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.
#:package N.SourceGenerators.UnionTypes@0.3.0
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=N.SourceGenerators.UnionTypes&version=0.3.0
                    
Install as a Cake Addin
#tool nuget:?package=N.SourceGenerators.UnionTypes&version=0.3.0
                    
Install as a Cake Tool

N.SourceGenerators.UnionTypes

Discriminated union type source generator

Motivation

C# doesn't support discriminated unions yet. This source generator helps automate writing union types.

Using

Add package reference to N.SourceGenerators.UnionTypes

dotnet add package N.SourceGenerators.UnionTypes

Create a partial class that will be used as a union type

public partial class FooResult
{
}

Add types you want to use in a discriminated union

public record Success(int Value);
public record ValidationError(string Message);
public record NotFoundError;

public partial class FooResult
{
}

Add N.SourceGenerators.UnionTypes.UnionTypeAttribute to a union type.

using N.SourceGenerators.UnionTypes;

public record Success(int Value);
public record ValidationError(string Message);
public record NotFoundError;

[UnionType(typeof(Success))]
[UnionType(typeof(ValidationError))]
[UnionType(typeof(NotFoundError))]
public partial class FooResult
{
}

Examples

All examples can be found in examples project

Implicit conversion

public FooResult ImplicitReturn()
{
    // you can return any union type variant without creating FooResult
    return new NotFoundError();
}

Explicit conversion

public ValidationError ExplicitCast(FooResult result)
{
    return (ValidationError)result;
}

Match method forces you to handle all possible variations

public IActionResult MatchMethod(FooResult result)
{
    return result.Match<IActionResult>(
        success => new OkResult(),
        validationError => new BadRequestResult(),
        notFoundError => new NotFoundResult()
    );
}
There are no supported framework assets in this package.

Learn more about Target Frameworks and .NET Standard.

  • .NETStandard 2.0

    • No dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on N.SourceGenerators.UnionTypes:

Package Downloads
Zomp.SyncMethodGenerator

Generates synchronized method from async method

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
0.28.0 12,156 5/2/2024
0.28.0-rc.61 56 5/2/2024
0.28.0-rc.60 43 5/2/2024
0.27.0 1,542 3/19/2024
0.27.0-rc.58 85 3/19/2024
0.27.0-rc.57 102 3/13/2024
0.26.0 49,034 10/26/2023
0.26.0-rc.55 96 11/16/2023
0.26.0-rc.53 101 10/30/2023
0.26.0-rc.52 88 10/30/2023
0.26.0-rc.51 98 10/30/2023
0.26.0-rc.50 85 10/30/2023
0.26.0-rc.48 105 10/26/2023
0.25.3 391 10/18/2023
0.25.3-rc.41 99 10/18/2023
0.25.1-rc.40 353 10/17/2023
0.25.0-rc.39 112 10/17/2023
0.24.0 1,048 10/17/2023
0.24.0-rc.37 154 10/16/2023
0.23.0 734 10/3/2023
0.23.0-rc.35 322 10/2/2023
0.22.0 342 10/2/2023
0.22.0-rc.33 98 10/2/2023
0.21.0 305 10/2/2023
0.21.0-rc.31 110 10/2/2023
0.21.0-rc.30 104 9/28/2023
0.20.0-rc.29 942 9/6/2023
0.20.0-rc.28 99 9/6/2023
0.19.0 710 8/3/2023
0.18.0 569 2/5/2023
0.17.0 410 2/2/2023
0.16.0 381 1/30/2023
0.15.0 416 1/29/2023
0.14.0 406 1/21/2023
0.13.0 431 1/20/2023
0.12.0 439 1/20/2023
0.11.0 424 1/18/2023
0.10.0 432 1/18/2023
0.9.0 431 1/17/2023
0.8.0 400 1/17/2023
0.7.0 393 1/17/2023
0.6.0 407 1/15/2023
0.5.1 409 1/15/2023
0.5.0 430 1/15/2023
0.4.0 446 1/15/2023
0.3.0 472 1/15/2023
0.2.0 455 1/15/2023
0.1.0 520 1/15/2023