Zomp.MethodCloning.Variants 1.0.24

dotnet add package Zomp.MethodCloning.Variants --version 1.0.24

NuGet\Install-Package Zomp.MethodCloning.Variants -Version 1.0.24

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="Zomp.MethodCloning.Variants" Version="1.0.24">
  <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.

<PackageVersion Include="Zomp.MethodCloning.Variants" Version="1.0.24" />
                    

                            Directory.Packages.props

<PackageReference Include="Zomp.MethodCloning.Variants">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
</PackageReference>
                    

                            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 Zomp.MethodCloning.Variants --version 1.0.24

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Zomp.MethodCloning.Variants, 1.0.24"

#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 Zomp.MethodCloning.Variants@1.0.24

#: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=Zomp.MethodCloning.Variants&version=1.0.24
                    

                            Install as a Cake Addin

#tool nuget:?package=Zomp.MethodCloning.Variants&version=1.0.24
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Zomp.MethodCloning.Variants

Write a method once. Get one per format, type or mode.

A source generator that replaces T4 templates. Write SaveAsBmp by hand, list the other formats, and SaveAsGif, SaveAsPng and the rest are generated on every build, in any IDE.

You write

[CloneVariants("Bmp", "Gif", "Png")]
public static partial class ImageExtensions
{
    /// <summary>Saves the image in the Bmp format.</summary>
    public static void SaveAsBmp(this Image image, Stream stream, BmpEncoder? encoder)
        => image.Save(stream, encoder ?? BmpFormat.Instance.DefaultEncoder);
}

You get

/// <summary>Saves the image in the Gif format.</summary>
public static void SaveAsGif(this Image image, Stream stream, GifEncoder? encoder)
    => image.Save(stream, encoder ?? GifFormat.Instance.DefaultEncoder);

/// <summary>Saves the image in the Png format.</summary>
public static void SaveAsPng(this Image image, Stream stream, PngEncoder? encoder)
    => image.Save(stream, encoder ?? PngFormat.Instance.DefaultEncoder);

Simplified for reading: the generated code fully qualifies every name.

Install

<PackageReference Include="Zomp.MethodCloning.Variants" PrivateAssets="all" />

Works with the .NET 8 SDK or later. Nothing is added to your assembly.

What gets swapped

Where	`Bmp` becomes `Gif`
The method's name	`SaveAsBmp` to `SaveAsGif` (the name must contain the word)
Types it uses	`Formats.Bmp.BmpEncoder` to `Formats.Gif.GifEncoder`
Static calls by simple name	`SaveAsBmp(image, stream)` to `SaveAsGif(image, stream)`
Its documentation	"in the Bmp format" to "in the Gif format"
The file's using directives	`using Formats.Bmp;` to `using Formats.Gif;`

A type with no counterpart, such as a BmpQuantizer with no GifQuantizer, is kept, with warning ZMC003.

Good to know

On a type, the attribute covers every method in that declaration. On a method, it covers just that method, and wins over the type's.
Nullability follows your method. Write it in #nullable disable to match what a T4 template produced.
The word is replaced everywhere. With Normal as the word, Normalize() would become Multiplyize(). Pick a word that appears nowhere else.
Not swapped: generic and nested types, calls written as image.SaveAsBmp(), string literals, and comments inside the method.
Not cloned: members of C# 14 extension blocks (ZMC004).

Full rules, limitations and a step-by-step migration from T4: the reference.

Diagnostics

ID	Severity	Means	Fix
ZMC001	Error	Two variants would declare the same member	Remove the duplicate from the list
ZMC002	Error	The method's name lacks the word being swapped	Rename the method, or take the attribute off it
ZMC003	Warning	A type has no counterpart, so it is kept	Add the counterpart, or suppress if intended
ZMC004	Error	The method is in a C# 14 extension block	Write it as a classic extension method

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
1.0.24	73	9/14/2026
1.0.23	69	9/14/2026
1.0.20-alpha	90	9/13/2026