RSCG – Farskeptic.AutoCompose

RSCG – Farskeptic.AutoCompose
 
 

Generating decorators for classes that implements interfaces.

This is how you can use Farskeptic.AutoCompose .

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>

  <ItemGroup>
    <PackageReference Include="Farskeptic.AutoCompose" Version="1.0.1" />
  </ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>
</Project>

The code that you will use is

using Decorator;

ICoffee c = new Coffee();
c = new CoffeeWithLogging(c);
await c.Prepare();
var ingredients = c.GetIngredients();

namespace Decorator;

internal class Coffee : ICoffee
{
    public string? Name { get; set; }
    public async Task<bool> Prepare()
    {
        Console.WriteLine("start prepare coffee");
        await Task.Delay(1000);
        Console.WriteLine("finish prepare coffee");
        return true;
    }
    public string[] GetIngredients() => new[] { "water","coffee" };

}

namespace Decorator;
internal interface ICoffee
{
    Task<bool> Prepare();

    string[] GetIngredients();
}

using AutoCompose.Generator.Attributes;

namespace Decorator;

[AutoCompose(typeof(ICoffee),nameof(_cof))]
internal partial class CoffeeWithLogging : ICoffee
{
    protected ICoffee _cof;

    public CoffeeWithLogging(ICoffee cof)
    {
        this._cof = cof;
    }
    public string[] GetIngredients()
    {
        Console.WriteLine("CoffeeWithLogging.GetIngredients");
        return this._cof.GetIngredients();
    }
}

The code that is generated is

// <auto-generated> 
// WARNING: THIS CODE IS AUTO-GENERATED AT COMPILE-TIME.  ANY CHANGES WILL BE OVERWRITTEN ON NEXT COMPILE.
// </auto-generated> 



namespace Decorator
{
    internal partial class CoffeeWithLogging
    {


        public virtual Task<bool> Prepare()
        {
            return _cof.Prepare();
        }


    }
}

Code and pdf at

https://ignatandrei.github.io/RSCG_Examples/v2/docs/Farskeptic.AutoCompose