RSCG – JinShil.MixinSourceGenerator

RSCG – JinShil.MixinSourceGenerator
 
 

Generate mixins of classes

This is how you can use JinShil.MixinSourceGenerator .

The code that you start with is

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>

  	<ItemGroup>
  	  <PackageReference Include="JinShil.MixinSourceGenerator" Version="1.0.0">
  	    <PrivateAssets>all</PrivateAssets>
  	    <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
  	  </PackageReference>
  	</ItemGroup>
</Project>

The code that you will use is

using DemoMixin;

Person person = new Person { Name = "Andrei Ignat" };
person.LogName();

using JinShil.MixinSourceGenerator;
namespace DemoMixin;
[Mixin(typeof(LogData))]
partial class Person
{
    public string Name { get; set; }=string.Empty;
    public void LogName() => this.Log(Name);
}

namespace DemoMixin;
internal class LogData
{
    public void Log(string data) => Console.WriteLine(data);
}

The code that is generated is

namespace JinShil.MixinSourceGenerator
{
    /// <summary>
    /// Specifies the type whose members are to be mixed in to a partial class or struct.
    /// </summary>
    [System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Struct, AllowMultiple = true)]
    public class MixinAttribute : System.Attribute
    {
        public System.Type Type { get; }
        public MixinAttribute(System.Type type)
        {
            Type = type;
        }
    }
}

namespace JinShil.MixinSourceGenerator
{
    /// <summary>
    /// Used to identify a member that should be ignored when mixing in members from other types.
    /// </summary>
    [System.AttributeUsage(System.AttributeTargets.Method | System.AttributeTargets.Property | System.AttributeTargets.Field | System.AttributeTargets.Event, AllowMultiple = false)]
    public class MixinIgnoreAttribute : System.Attribute
    {
        public MixinIgnoreAttribute()
        { }
    }
}

#nullable enable
namespace DemoMixin
{
    partial class Person
    {
        public void Log(string data) => Console.WriteLine(data);
    }
}

Code and pdf at

https://ignatandrei.github.io/RSCG_Examples/v2/docs/JinShil.MixinSourceGenerator