RSCG – ProxyGen

RSCG – ProxyGen
 
 

intercepting and duck typing

This is how you can use ProxyGen .

The code that you start with is

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

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>
  <ItemGroup>
    <PackageReference Include="ProxyGen.NET" Version="8.2.1" />
  </ItemGroup>

</Project>

The code that you will use is

Person person = new ();
person.FirstName= "Andrei";
person.LastName = "Ignat";
IPerson duck = DuckGenerator<IPerson,Person>.Activate(Tuple.Create(person));
Console.WriteLine(duck.FullName());

namespace ProxyGenDemo;

public class Person 
{
    public int ID { get; set; }
    public string? FirstName { get; set; }
    public string? LastName { get; set; }
    public string FullName()
    {
        return $"{FirstName} {LastName}";
    }
}

namespace ProxyGenDemo;

public interface IPerson
{
    string? FirstName { get; set; }
    string? LastName { get; set; }

    string FullName();
}

global using ProxyGenDemo;
global using Solti.Utils.Proxy.Generators;
global using Solti.Utils.Proxy.Attributes;

//[assembly: EmbedGeneratedType(typeof(ProxyGenerator<IMyInterface,MyInterceptor<IMyInterface>>))]
[assembly: EmbedGeneratedType(typeof(DuckGenerator<IPerson,Person>))]

The code that is generated is

#pragma warning disable
[global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProxyGen.NET","8.2.1.0"),global::System.Diagnostics.DebuggerNonUserCodeAttribute,global::System.Runtime.CompilerServices.CompilerGeneratedAttribute]
internal sealed class Duck_BB1E45629CF5010E4068E5BFBB7EF53B : global::Solti.Utils.Proxy.Internals.DuckBase<global::ProxyGenDemo.Person>,global::ProxyGenDemo.IPerson
{
    public Duck_BB1E45629CF5010E4068E5BFBB7EF53B(global::ProxyGenDemo.Person target) : base(target)
    {
    }

    [global::System.Runtime.CompilerServices.MethodImplAttribute(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
    global::System.String global::ProxyGenDemo.IPerson.FullName() => this.Target.FullName();
    global::System.String global::ProxyGenDemo.IPerson.FirstName {[global::System.Runtime.CompilerServices.MethodImplAttribute(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
        get => this.Target.FirstName; [global::System.Runtime.CompilerServices.MethodImplAttribute(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
        set => this.Target.FirstName = value; }

    global::System.String global::ProxyGenDemo.IPerson.LastName {[global::System.Runtime.CompilerServices.MethodImplAttribute(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
        get => this.Target.LastName; [global::System.Runtime.CompilerServices.MethodImplAttribute(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
        set => this.Target.LastName = value; }

    public static readonly global::System.Func<global::System.Object,global::System.Object> __Activator = tuple =>
    {
        switch (tuple)
        {
            case global::System.Tuple<global::ProxyGenDemo.Person> t0:
                return new global::Duck_BB1E45629CF5010E4068E5BFBB7EF53B(t0.Item1);
            default:
                throw new global::System.MissingMethodException("Constructor with the given layout cannot be found.");
        }
    };
    [global::System.Runtime.CompilerServices.ModuleInitializerAttribute]
    public static void Initialize() => global::Solti.Utils.Proxy.Internals.LoadedTypes.Register(typeof(global::Duck_BB1E45629CF5010E4068E5BFBB7EF53B));
}

Code and pdf at

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