RSCG – Dolly

RSCG – Dolly
 
 

Clone objects with ease.

This is how you can use Dolly .

The code that you start with is

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

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net9.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Dolly" Version="0.0.7">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>
  </ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>
</Project>

The code that you will use is

// See https://aka.ms/new-console-template for more information
using CloneData;

Console.WriteLine("Hello,World!");
Person p = new ();
p.FirstName = "Andrei";
p.LastName = "Ignat";
p.Age = 54;
var p1=p.DeepClone();
Console.WriteLine(p1.Name());

namespace CloneData;
[Dolly.Clonable]
public partial class Person
{
    public string FirstName { get; set; } = "";
    public string LastName { get; set; } = "";
    [Dolly.CloneIgnore]
    public int Age { get; set; }
    public string Name() => $"{FirstName} {LastName}";

    public Person[] Childs { get; set; } = [];
}

The code that is generated is

using System;

namespace Dolly
{
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct)]
    public class ClonableAttribute : Attribute
    {
    }
}

using System;

namespace Dolly
{
    [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property)]
    public class CloneIgnoreAttribute : Attribute
    {
    }
}

using System;
namespace Dolly
{
    public interface IClonable<T> : ICloneable
    {
        T DeepClone();
        T ShallowClone();
    }
}

using Dolly;
using System.Linq;
namespace CloneData;
partial class Person : IClonable<Person>
{
    object ICloneable.Clone() => this.DeepClone();
    public virtual Person DeepClone() =>
        new ()
        {
            FirstName = FirstName,
            LastName = LastName,
            Childs = Childs.Select(item => item.DeepClone()).ToArray()
        };

    public virtual Person ShallowClone() =>
        new ()
        {
            FirstName = FirstName,
            LastName = LastName,
            Childs = Childs.ToArray()
        };
}

Code and pdf at

https://ignatandrei.github.io/RSCG_Examples/v2/docs/Dolly