Category: .NET Core

RSCG – N.SourceGenerators.UnionTypes

RSCG – N.SourceGenerators.UnionTypes
 
 

name N.SourceGenerators.UnionTypes
nuget https://www.nuget.org/packages/N.SourceGenerators.UnionTypes/
link https://github.com/Ne4to/N.SourceGenerators.UnionTypes
author Alexey Sosnin

Generating different union types

 

This is how you can use N.SourceGenerators.UnionTypes .

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>

  <ItemGroup>
    <PackageReference Include="N.SourceGenerators.UnionTypes" Version="0.26.0" />
  </ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>
</Project>

The code that you will use is


using UnionTypesDemo;

Console.WriteLine("Save or not");
var data = SaveToDatabase.Save(0);
Console.WriteLine(data.IsValidationError);
data = SaveToDatabase.Save(1);
Console.WriteLine(data.IsSuccess);




using N.SourceGenerators.UnionTypes;
namespace UnionTypesDemo;
public record Success(int Value);
public record ValidationError(string Message);

[UnionType(typeof(Success))]
[UnionType(typeof(ValidationError))]
public partial class ResultSave
{
}






namespace UnionTypesDemo;

public class SaveToDatabase
{
    public static ResultSave Save(int i)
    {
        if(i ==0)
        {
            return new ValidationError(" cannot save 0");
        }
        return new Success(i);
    }
}

 

The code that is generated is

// <auto-generated>
//   This code was generated by https://github.com/Ne4to/N.SourceGenerators.UnionTypes
//   Feel free to open an issue
// </auto-generated>
#nullable enable
using System;
using System.Runtime.CompilerServices;

namespace N.SourceGenerators.UnionTypes
{
    [AttributeUsage(AttributeTargets.GenericParameter, Inherited = false, AllowMultiple = false)]
    internal sealed class GenericUnionTypeAttribute : Attribute
    {
        public string? Alias { get; set; }
        public bool AllowNull { get; set; }
        public object? TypeDiscriminator { get; set; }
    }
}

// <auto-generated>
//   This code was generated by https://github.com/Ne4to/N.SourceGenerators.UnionTypes
//   Feel free to open an issue
// </auto-generated>
#nullable enable
using System;
using System.Runtime.CompilerServices;

namespace N.SourceGenerators.UnionTypes
{
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct, Inherited = false, AllowMultiple = false)]
    internal sealed class JsonPolymorphicUnionAttribute : Attribute
    {
        public string? TypeDiscriminatorPropertyName { get; set; }
    }
}

// <auto-generated>
//   This code was generated by https://github.com/Ne4to/N.SourceGenerators.UnionTypes
//   Feel free to open an issue
// </auto-generated>
#pragma warning disable
#nullable enable
namespace UnionTypesDemo
{
    partial class ResultSave : System.IEquatable<ResultSave>
    {
        private readonly int _variantId;
        private const int SuccessId = 1;
        private readonly global::UnionTypesDemo.Success _success;
        public bool IsSuccess => _variantId == SuccessId;

        public global::UnionTypesDemo.Success AsSuccess
        {
            get
            {
                if (_variantId == SuccessId)
                    return _success;
                throw new System.InvalidOperationException($"Unable convert to Success. Inner value is {ValueAlias} not Success.");
            }
        }

        public ResultSave(global::UnionTypesDemo.Success success)
        {
            System.ArgumentNullException.ThrowIfNull(success);
            _variantId = SuccessId;
            _success = success;
        }

        public static implicit operator ResultSave(global::UnionTypesDemo.Success success) => new ResultSave(success);
        public static explicit operator global::UnionTypesDemo.Success(ResultSave value)
        {
            if (value._variantId == SuccessId)
                return value._success;
            throw new System.InvalidOperationException($"Unable convert to Success. Inner value is {value.ValueAlias} not Success.");
        }

        public bool TryGetSuccess([System.Diagnostics.CodeAnalysis.NotNullWhen(true)] out global::UnionTypesDemo.Success value)
        {
            if (_variantId == SuccessId)
            {
                value = _success;
                return true;
            }
            else
            {
                value = default;
                return false;
            }
        }

        private const int ValidationErrorId = 2;
        private readonly global::UnionTypesDemo.ValidationError _validationError;
        public bool IsValidationError => _variantId == ValidationErrorId;

        public global::UnionTypesDemo.ValidationError AsValidationError
        {
            get
            {
                if (_variantId == ValidationErrorId)
                    return _validationError;
                throw new System.InvalidOperationException($"Unable convert to ValidationError. Inner value is {ValueAlias} not ValidationError.");
            }
        }

        public ResultSave(global::UnionTypesDemo.ValidationError validationError)
        {
            System.ArgumentNullException.ThrowIfNull(validationError);
            _variantId = ValidationErrorId;
            _validationError = validationError;
        }

        public static implicit operator ResultSave(global::UnionTypesDemo.ValidationError validationError) => new ResultSave(validationError);
        public static explicit operator global::UnionTypesDemo.ValidationError(ResultSave value)
        {
            if (value._variantId == ValidationErrorId)
                return value._validationError;
            throw new System.InvalidOperationException($"Unable convert to ValidationError. Inner value is {value.ValueAlias} not ValidationError.");
        }

        public bool TryGetValidationError([System.Diagnostics.CodeAnalysis.NotNullWhen(true)] out global::UnionTypesDemo.ValidationError value)
        {
            if (_variantId == ValidationErrorId)
            {
                value = _validationError;
                return true;
            }
            else
            {
                value = default;
                return false;
            }
        }

        public TOut Match<TOut>(global::System.Func<global::UnionTypesDemo.Success, TOut> matchSuccess, global::System.Func<global::UnionTypesDemo.ValidationError, TOut> matchValidationError)
        {
            if (_variantId == SuccessId)
                return matchSuccess(_success);
            if (_variantId == ValidationErrorId)
                return matchValidationError(_validationError);
            throw new System.InvalidOperationException("Inner type is unknown");
        }

        public async global::System.Threading.Tasks.Task<TOut> MatchAsync<TOut>(global::System.Func<global::UnionTypesDemo.Success, global::System.Threading.CancellationToken, global::System.Threading.Tasks.Task<TOut>> matchSuccess, global::System.Func<global::UnionTypesDemo.ValidationError, global::System.Threading.CancellationToken, global::System.Threading.Tasks.Task<TOut>> matchValidationError, global::System.Threading.CancellationToken ct)
        {
            if (_variantId == SuccessId)
                return await matchSuccess(_success, ct).ConfigureAwait(false);
            if (_variantId == ValidationErrorId)
                return await matchValidationError(_validationError, ct).ConfigureAwait(false);
            throw new System.InvalidOperationException("Inner type is unknown");
        }

        public void Switch(global::System.Action<global::UnionTypesDemo.Success> switchSuccess, global::System.Action<global::UnionTypesDemo.ValidationError> switchValidationError)
        {
            if (_variantId == SuccessId)
            {
                switchSuccess(_success);
                return;
            }

            if (_variantId == ValidationErrorId)
            {
                switchValidationError(_validationError);
                return;
            }

            throw new System.InvalidOperationException("Inner type is unknown");
        }

        public async global::System.Threading.Tasks.Task SwitchAsync(global::System.Func<global::UnionTypesDemo.Success, global::System.Threading.CancellationToken, global::System.Threading.Tasks.Task> switchSuccess, global::System.Func<global::UnionTypesDemo.ValidationError, global::System.Threading.CancellationToken, global::System.Threading.Tasks.Task> switchValidationError, global::System.Threading.CancellationToken ct)
        {
            if (_variantId == SuccessId)
            {
                await switchSuccess(_success, ct).ConfigureAwait(false);
                return;
            }

            if (_variantId == ValidationErrorId)
            {
                await switchValidationError(_validationError, ct).ConfigureAwait(false);
                return;
            }

            throw new System.InvalidOperationException("Inner type is unknown");
        }

        public global::System.Type ValueType
        {
            get
            {
                if (_variantId == SuccessId)
                    return typeof(global::UnionTypesDemo.Success);
                if (_variantId == ValidationErrorId)
                    return typeof(global::UnionTypesDemo.ValidationError);
                throw new System.InvalidOperationException("Inner type is unknown");
            }
        }

        private string ValueAlias
        {
            get
            {
                if (_variantId == SuccessId)
                    return "Success";
                if (_variantId == ValidationErrorId)
                    return "ValidationError";
                throw new System.InvalidOperationException("Inner type is unknown");
            }
        }

        public override int GetHashCode()
        {
            if (_variantId == SuccessId)
                return _success.GetHashCode();
            if (_variantId == ValidationErrorId)
                return _validationError.GetHashCode();
            throw new System.InvalidOperationException("Inner type is unknown");
        }

        public static bool operator ==(ResultSave? left, ResultSave? right)
        {
            return Equals(left, right);
        }

        public static bool operator !=(ResultSave? left, ResultSave? right)
        {
            return !Equals(left, right);
        }

        public bool Equals(ResultSave? other)
        {
            if (ReferenceEquals(null, other))
            {
                return false;
            }

            if (ReferenceEquals(this, other))
            {
                return true;
            }

            if (ValueType != other.ValueType)
            {
                return false;
            }

            if (_variantId == SuccessId)
                return System.Collections.Generic.EqualityComparer<global::UnionTypesDemo.Success>.Default.Equals(_success, other._success);
            if (_variantId == ValidationErrorId)
                return System.Collections.Generic.EqualityComparer<global::UnionTypesDemo.ValidationError>.Default.Equals(_validationError, other._validationError);
            throw new System.InvalidOperationException("Inner type is unknown");
        }

        public override string ToString()
        {
            if (_variantId == SuccessId)
                return _success.ToString();
            if (_variantId == ValidationErrorId)
                return _validationError.ToString();
            throw new System.InvalidOperationException("Inner type is unknown");
        }

        public override bool Equals(object? other)
        {
            if (ReferenceEquals(null, other))
            {
                return false;
            }

            if (ReferenceEquals(this, other))
            {
                return true;
            }

            if (other.GetType() != typeof(ResultSave))
            {
                return false;
            }

            return Equals((ResultSave)other);
        }
    }
}

#nullable enable
using System;
using System.Runtime.CompilerServices;

namespace N.SourceGenerators.UnionTypes
{
    [AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = true)]
    sealed class UnionConverterAttribute : Attribute
    {
        public Type FromType { get; }
        public Type ToType { get; }
        public string? MethodName { get; }

        public UnionConverterAttribute(Type fromType, Type toType, string? methodName = null)
        {
            FromType = fromType;
            ToType = toType;
            MethodName = methodName;
        }
    }
}

// <auto-generated>
//   This code was generated by https://github.com/Ne4to/N.SourceGenerators.UnionTypes
//   Feel free to open an issue
// </auto-generated>
#nullable enable
using System;
using System.Runtime.CompilerServices;

namespace N.SourceGenerators.UnionTypes
{
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct, Inherited = false, AllowMultiple = true)]
    sealed class UnionConverterFromAttribute : Attribute
    {
        public Type FromType { get; }

        public UnionConverterFromAttribute(Type fromType)
        {
            FromType = fromType;
        }
    }
}

// <auto-generated>
//   This code was generated by https://github.com/Ne4to/N.SourceGenerators.UnionTypes
//   Feel free to open an issue
// </auto-generated>
#nullable enable
using System;
using System.Runtime.CompilerServices;

namespace N.SourceGenerators.UnionTypes
{
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct, Inherited = false, AllowMultiple = true)]
    sealed class UnionConverterToAttribute : Attribute
    {
        public Type ToType { get; }

        public UnionConverterToAttribute(Type toType)
        {
            ToType = toType;
        }
    }
}

// <auto-generated>
//   This code was generated by https://github.com/Ne4to/N.SourceGenerators.UnionTypes
//   Feel free to open an issue
// </auto-generated>
#nullable enable
using System;
using System.Runtime.CompilerServices;

namespace N.SourceGenerators.UnionTypes
{
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct, Inherited = false, AllowMultiple = true)]
    internal sealed class UnionTypeAttribute : Attribute
    {
        public Type Type { get; }
        public string? Alias { get; }
        public int Order { get; }
        public bool AllowNull { get; set; }
        public object? TypeDiscriminator { get; set; }

        public UnionTypeAttribute(Type type, string? alias = null, [CallerLineNumber] int order = 0)
        {
            Type = type;
            Alias = alias;
            Order = order;
        }
    }
}

Code and pdf at

https://ignatandrei.github.io/RSCG_Examples/v2/docs/N.SourceGenerators.UnionTypes

RSCG – AutoConstructor

RSCG – AutoConstructor
 
 

name AutoConstructor
nuget https://www.nuget.org/packages/AutoConstructor/
link https://github.com/k94ll13nn3/AutoConstructor
author Kévin Gallienne

Generating constructor for class with many properties

 

This is how you can use AutoConstructor .

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="AutoConstructor" Version="4.1.1">
	    <PrivateAssets>all</PrivateAssets>
	    <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
	  </PackageReference>
	</ItemGroup>
</Project>

The code that you will use is


using QuickConstructorDemo;

var p = new Person("Andrei", "Ignat");

Console.WriteLine(p.FullName());



namespace QuickConstructorDemo;

[AutoConstructor]
internal partial class Person
{
    private readonly string FirstName;
    private readonly string? LastName;
    
    public string FullName() => $"{FirstName} {LastName}";
    
}

 

The code that is generated is

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by the AutoConstructor source generator.
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

[System.AttributeUsage(System.AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
internal sealed class AutoConstructorAttribute : System.Attribute
{
}


//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by the AutoConstructor source generator.
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

[System.AttributeUsage(System.AttributeTargets.Field, Inherited = false, AllowMultiple = false)]
internal sealed class AutoConstructorIgnoreAttribute : System.Attribute
{
}


//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by the AutoConstructor source generator.
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

[System.AttributeUsage(System.AttributeTargets.Field, Inherited = false, AllowMultiple = false)]
internal sealed class AutoConstructorInjectAttribute : System.Attribute
{
    public AutoConstructorInjectAttribute(string initializer = null, string parameterName = null, System.Type injectedType = null)
    {
        Initializer = initializer;
        ParameterName = parameterName;
        InjectedType = injectedType;
    }

    public string Initializer { get; }

    public string ParameterName { get; }

    public System.Type InjectedType { get; }
}


//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by the AutoConstructor source generator.
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
#nullable enable
namespace QuickConstructorDemo
{
    partial class Person
    {
        public Person(string FirstName, string? LastName)
        {
            this.FirstName = FirstName;
            this.LastName = LastName;
        }
    }
}

Code and pdf at

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

RSCG – DudNet

RSCG – DudNet
 
 

name DudNet
nuget https://www.nuget.org/packages/Jwshyns.DudNet/
link https://github.com/jwshyns/DudNet
author jwshyns

Generate proxy classes for the principal classes

 

This is how you can use DudNet .

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>

  <ItemGroup>
    <PackageReference Include="Jwshyns.DudNet" Version="1.2.0" />
  </ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>
</Project>

The code that you will use is


using DudNetDemo;

var p = new Person();
var p1= new PersonProxy(p);
p1.FirstName = "John";
p1.LastName = "Doe";
Console.WriteLine(p.FullName());
Console.WriteLine(p1.FullName());




using DudNet.Attributes;
using System.Runtime.CompilerServices;

namespace DudNetDemo;
[ProxyService]
public partial class Person : IPerson
{
    public string? FirstName { get; set; }
    public string? LastName { get; set; }
    public string FullName()
    {
        return FirstName + " " + LastName;
    }
}

 

The code that is generated is

using System.Runtime.CompilerServices;
using DudNet.Attributes;
using System.Runtime.CompilerServices;

namespace DudNetDemo;

/// <inheritdoc cref="IPerson"/>
public partial class PersonDud : IPerson {

	public string? FirstName {
		get {
			return (string?) default;
		}
		set {
		}
	}
	public string? LastName {
		get {
			return (string?) default;
		}
		set {
		}
	}
	public string FullName() {
		return (string) default;
	}

}

using System.Runtime.CompilerServices;
using DudNet.Attributes;
using System.Runtime.CompilerServices;

namespace DudNetDemo;

/// <inheritdoc cref="IPerson"/>
public partial class PersonProxy : IPerson {

	private readonly IPerson _service;

	public string? FirstName {
		get {
			Interceptor();
			get_FirstNameInterceptor();
			return _service.FirstName;
		}
		set {
			Interceptor();
			set_FirstNameInterceptor(value);
			_service.FirstName = value;
		}
	}
	public string? LastName {
		get {
			Interceptor();
			get_LastNameInterceptor();
			return _service.LastName;
		}
		set {
			Interceptor();
			set_LastNameInterceptor(value);
			_service.LastName = value;
		}
	}
	public string FullName() {
		Interceptor();
		FullNameInterceptor();
		return _service.FullName();
	}
	partial void Interceptor([CallerMemberName]string callerName = null);
	partial void get_FirstNameInterceptor();
	partial void set_FirstNameInterceptor(string? value);
	partial void get_LastNameInterceptor();
	partial void set_LastNameInterceptor(string? value);
	partial void FullNameInterceptor();

}

Code and pdf at

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

RSCG – MinimalApiBuilder

RSCG – MinimalApiBuilder
 
 

name MinimalApiBuilder
nuget https://www.nuget.org/packages/MinimalApiBuilder/
link https://github.com/JensDll/MinimalApiBuilder
author

Generate Minimal API from classes

 

This is how you can use MinimalApiBuilder .

The code that you start with is 


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

  <PropertyGroup>
    <TargetFramework>net7.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.12" />
    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
	  <PackageReference Include="MinimalApiBuilder" Version="1.3.3" />
  </ItemGroup>

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

</Project>

The code that you will use is


using MinimalApiBuilder;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
//MinimalApiBuilder.DependencyInjection.AddMinimalApiBuilderEndpoints(builder.Services);
builder.Services.AddMinimalApiBuilderEndpoints();
var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseAuthorization();

app.MapControllers();

app.MapGet<BasicEndpoint>("/hello");
app.Run();




using Microsoft.AspNetCore.Mvc;
using MinimalApiBuilder;

public partial class BasicEndpoint : MinimalApiBuilderEndpoint
{
    private static string Handle([FromServices] BasicEndpoint endpoint)
    {
        return "Hello, World!";
    }
}

 

The code that is generated is

// <auto-generated>
// This is a MinimalApiBuilder source generated file.
// </auto-generated>

#nullable enable

namespace MinimalApiBuilder
{
    public static class DependencyInjection
    {
        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("MinimalApiBuilder.Generator", "1.3.3.0")]
        public static global::Microsoft.Extensions.DependencyInjection.IServiceCollection AddMinimalApiBuilderEndpoints(this global::Microsoft.Extensions.DependencyInjection.IServiceCollection services)
        {
            global::Microsoft.Extensions.DependencyInjection.ServiceCollectionServiceExtensions.AddScoped<global::BasicEndpoint>(services);
            return services;
        }
    }
}


// <auto-generated>
// This is a MinimalApiBuilder source generated file.
// </auto-generated>

#nullable enable

public partial class BasicEndpoint : global::MinimalApiBuilder.IEndpoint
{
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("MinimalApiBuilder.Generator", "1.3.3.0")]
    public static global::System.Delegate _auto_generated_Handler { get; } = Handle;
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("MinimalApiBuilder.Generator", "1.3.3.0")]
    public static void _auto_generated_Configure(global::Microsoft.AspNetCore.Builder.RouteHandlerBuilder builder)
    {
    }
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("MinimalApiBuilder.Generator", "1.3.3.0")]
    public static void Configure(global::Microsoft.AspNetCore.Builder.RouteHandlerBuilder builder)
    {
    }
}

Code and pdf at

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

What I have learned from 80+ RSCG

I have analyzed more than 80 Roslyn Source Code Generators –  see https://ignatandrei.github.io/RSCG_Examples/v2/docs/List-of-RSCG .  The conclusions are here:

  1. RSCG is here to stay . There are examples from Microsoft  – and a bunch of other RSCG
  2. First version of RSCG was simple, but VS not performant. The second version is more difficult to implement – but VS is more happy
  3. There are many RSCG for the same thing – for example, generating constructors from fields / properties: https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#constructor . You have to test them like you test any dll
  4. Creating RSCG is difficult – you can add some errors to the code generated and/or warnings and/or more problems. I will put here my findings: https://ignatandrei.github.io/RSCG_Examples/v2/docs/GoodPractices

Adding more data to a result of a task

Every now and then I need to generate , from an array of data, an array of Tasks and then

await Task.WhenAll(TheTaskArray)

The problem is that I need to consolidate the return data of each array with the original array – to make some modifications.

For  example, in the generator of https://ignatandrei.github.io/RSCG_Examples/v2/docs/category/rscg-examples I do something like this

var t = _AllDescriptions
            .Select(it =>GrabReadMe(it))
            .ToArray();
var data = await Task.WhenAll(t);
//now, for each item in data array I want to put something into original _AllDescriptions

My first try was a simple class

public struct TaskWithData<TData, TResult>//: INotifyCompletion
{
    private readonly TData data;
    private readonly Task<TResult> taskToExecute;
 
    public TaskWithData(TData data,Task<TResult> taskToExecute)
    {
        ArgumentNullException.ThrowIfNull(taskToExecute);
        this.data = data;
        this.taskToExecute = taskToExecute;
    }
# region add this to have Task.WhenAll
    public async Task<( TData data, TResult res)> GetTask() {
        var res = await taskToExecute;
        return (data,res);
    }
    public static explicit operator Task<(TData data, TResult res)>(TaskWithData<TData,TResult> b) 
        => b.GetTask() ;

    #endregion
}

And now the code could be written as

var t = _AllDescriptions.Select(
            it => new TaskWithData<Description, string?>(it, GrabReadMe(it))
            )
            .Select(td=>td.GetTask())            
            .ToArray();

        var desc = await Task.WhenAll(t);
        foreach (var item in desc)
        {
            item.data.Readme = item.res;
        }

But I do not like so much … so 2 iterations with extensions

public static class Extensions
{ 
    #region transform to task
    public static Task<( TData data, TResult res)> AddData<TData, TResult>(this Task<TResult> taskToExecute, TData data)
    {
        var td=new TaskWithData<TData, TResult>(data,taskToExecute);
        return td.GetTask();
    }
    public static Task<(TData data, TResult res)>[] SelectTaskWithData<TData, TResult>(this TData[] arr,Func<TData, Task<TResult>> func) {
        return arr.Select(it => func(it).AddData(it)).ToArray();
    }
    #endregion
}

So now the code becomes

var t = _AllDescriptions
            .Select(it =>GrabReadMe(it).AddData(it))
            .ToArray();

or

var t = _AllDescriptions.SelectTaskWithData(GrabReadMe).ToArray();

It was interesting to create this in order to add more data to the return value of a Task

RSCG – DynamicsMapper

RSCG – DynamicsMapper
 
 

name DynamicsMapper
nuget https://www.nuget.org/packages/YC.DynamicsMapper/
link https://github.com/YonatanCohavi/DynamicsMapper/
author Yonatan Cohavi

Mapper for Dataverse client – generates also column names from properties

 

This is how you can use DynamicsMapper .

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="Microsoft.PowerPlatform.Dataverse.Client" Version="1.1.14" />
	  <PackageReference Include="YC.DynamicsMapper" Version="1.0.8" />
	</ItemGroup>
</Project>

The code that you will use is


using NextGenMapperDemo;
var pm = new PersonMapper();
Console.WriteLine(pm.Entityname);




using DynamicsMapper.Abstractions;

namespace NextGenMapperDemo;


[CrmEntity("person")]
public class Person
{
    [CrmField("personid", Mapping = MappingType.PrimaryId)]
    public Guid ID { get; set; }
    [CrmField("name")]

    public string? Name { get; set; }
}

 

The code that is generated is

// <auto-generated />
#nullable enable
using Microsoft.Xrm.Sdk;
using System.Linq;

namespace DynamicsMapper.Extension
{
    public static class EntityExtension
    {
        public static Entity? GetAliasedEntity(this Entity entity, string alias)
        {
            var attributes = entity.Attributes.Where(e => e.Key.StartsWith(alias)).ToArray();
            if (!attributes.Any())
                return null;
            var aliasEntity = new Entity();
            foreach (var attribute in attributes)
            {
                if (!(attribute.Value is AliasedValue aliasedValued))
                    continue;
                if (string.IsNullOrEmpty(aliasEntity.LogicalName))
                    aliasEntity.LogicalName = aliasedValued.EntityLogicalName;
                aliasEntity[aliasedValued.AttributeLogicalName] = aliasedValued.Value;
            }

            return aliasEntity;
        }
    }
}

// <auto-generated />
#nullable enable
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Query;

namespace DynamicsMapper.Mappers
{
    public interface IEntityMapper<T>
    {
        public string Entityname { get; }
        public ColumnSet Columns { get; }

        public T Map(Entity entity);
        public T? Map(Entity entity, string alias);
        public Entity Map(T model);
    }
}

// <auto-generated />
#nullable enable
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Query;
using DynamicsMapper.Extension;
using DynamicsMapper.Mappers;
using System;

namespace NextGenMapperDemo
{
    public class PersonMapper : IEntityMapper<Person>
    {
        private static readonly string[] columns = new[]
        {
            "personid",
            "name"
        };
        public ColumnSet Columns => new ColumnSet(columns);

        private const string entityname = "person";
        public string Entityname => entityname;

        public Entity Map(Person person)
        {
            var entity = new Entity(entityname);
            entity.Id = person.ID;
            entity["name"] = person.Name;
            return entity;
        }

        public Person? Map(Entity entity, string alias) => InternalMap(entity, alias);
        public Person Map(Entity entity) => InternalMap(entity)!;
        private static Person? InternalMap(Entity source, string? alias = null)
        {
            Entity? entity;
            if (string.IsNullOrEmpty(alias))
            {
                entity = source;
            }
            else
            {
                entity = source.GetAliasedEntity(alias);
                if (entity is null)
                    return null;
            }

            if (entity?.LogicalName != entityname)
                throw new ArgumentException($"entity LogicalName expected to be {entityname} recived: {entity?.LogicalName}", "entity");
            var person = new Person();
            person.ID = entity.GetAttributeValue<Guid>("personid");
            person.Name = entity.GetAttributeValue<string?>("name");
            return person;
        }
    }
}

Code and pdf at

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

RSCG – UnitGenerator

RSCG – UnitGenerator
 
 

name UnitGenerator
nuget https://www.nuget.org/packages/UnitGenerator/
link https://github.com/Cysharp/UnitGenerator
author Cysharp, Inc

Generating classes instead of value objects( e.g. int)

 

This is how you can use UnitGenerator .

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="UnitGenerator" Version="1.5.1">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>
  </ItemGroup>
</Project>

The code that you will use is


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

Person p = new();
//p.SetBirthDate(1970, 4, 16);
p.SetBirthDate(new YearId(1970) , new MonthId(4),new DayId( 16));
Console.WriteLine(p.BirthDate);




using UnitGenerator;

namespace StronglyDemo;


[UnitOf(typeof(int))]
public partial struct YearId { }

[UnitOf(typeof(int))]
public partial struct MonthId { }

[UnitOf(typeof(int))]
public partial struct DayId { }

internal class Person
{
    public DateTime BirthDate { get; internal set; }
    public void SetBirthDate(YearId yearId,MonthId monthId,DayId dayId)
    {
        BirthDate = new DateTime(yearId.AsPrimitive(), monthId.AsPrimitive(), dayId.AsPrimitive());
    }
}

 

The code that is generated is

// <auto-generated>
// THIS (.cs) FILE IS GENERATED BY UnitGenerator. DO NOT CHANGE IT.
// </auto-generated>
#pragma warning disable CS8669
using System;
using System.Globalization;
#if NET7_0_OR_GREATER
using System.Numerics;
#endif
namespace StronglyDemo
{
    [System.ComponentModel.TypeConverter(typeof(DayIdTypeConverter))]
    readonly partial struct DayId 
        : IEquatable<DayId>
#if NET7_0_OR_GREATER
        , IEqualityOperators<DayId, DayId, bool>
#endif    
    {
        readonly int value;

        public int AsPrimitive() => value;

        public DayId(int value)
        {
            this.value = value;
        }
        
        public static explicit operator int(DayId value)
        {
            return value.value;
        }

        public static explicit operator DayId(int value)
        {
            return new DayId(value);
        }

        public bool Equals(DayId other)
        {
            return value.Equals(other.value);
        }

        public override bool Equals(object obj)
        {
            if (obj == null) return false;
            var t = obj.GetType();
            if (t == typeof(DayId))
            {
                return Equals((DayId)obj);
            }
            if (t == typeof(int))
            {
                return value.Equals((int)obj);
            }

            return value.Equals(obj);
        }
        
        public static bool operator ==(DayId x, DayId y)
        {
            return x.value.Equals(y.value);
        }

        public static bool operator !=(DayId x, DayId y)
        {
            return !x.value.Equals(y.value);
        }

        public override int GetHashCode()
        {
            return value.GetHashCode();
        }

        public override string ToString() => value.ToString();

        // Default
        
        private class DayIdTypeConverter : System.ComponentModel.TypeConverter
        {
            private static readonly Type WrapperType = typeof(DayId);
            private static readonly Type ValueType = typeof(int);

            public override bool CanConvertFrom(System.ComponentModel.ITypeDescriptorContext context, Type sourceType)
            {
                if (sourceType == WrapperType || sourceType == ValueType)
                {
                    return true;
                }

                return base.CanConvertFrom(context, sourceType);
            }

            public override bool CanConvertTo(System.ComponentModel.ITypeDescriptorContext context, Type destinationType)
            {
                if (destinationType == WrapperType || destinationType == ValueType)
                {
                    return true;
                }

                return base.CanConvertTo(context, destinationType);
            }

            public override object ConvertFrom(System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
            {
                if (value != null)
                {
                    var t = value.GetType();
                    if (t == typeof(DayId))
                    {
                        return (DayId)value;
                    }
                    if (t == typeof(int))
                    {
                        return new DayId((int)value);
                    }
                }

                return base.ConvertFrom(context, culture, value);
            }

            public override object ConvertTo(System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType)
            {
                if (value is DayId wrappedValue)
                {
                    if (destinationType == WrapperType)
                    {
                        return wrappedValue;
                    }

                    if (destinationType == ValueType)
                    {
                        return wrappedValue.AsPrimitive();
                    }
                }

                return base.ConvertTo(context, culture, value, destinationType);
            }
        }
    }
}


// <auto-generated>
// THIS (.cs) FILE IS GENERATED BY UnitGenerator. DO NOT CHANGE IT.
// </auto-generated>
#pragma warning disable CS8669
using System;
using System.Globalization;
#if NET7_0_OR_GREATER
using System.Numerics;
#endif
namespace StronglyDemo
{
    [System.ComponentModel.TypeConverter(typeof(MonthIdTypeConverter))]
    readonly partial struct MonthId 
        : IEquatable<MonthId>
#if NET7_0_OR_GREATER
        , IEqualityOperators<MonthId, MonthId, bool>
#endif    
    {
        readonly int value;

        public int AsPrimitive() => value;

        public MonthId(int value)
        {
            this.value = value;
        }
        
        public static explicit operator int(MonthId value)
        {
            return value.value;
        }

        public static explicit operator MonthId(int value)
        {
            return new MonthId(value);
        }

        public bool Equals(MonthId other)
        {
            return value.Equals(other.value);
        }

        public override bool Equals(object obj)
        {
            if (obj == null) return false;
            var t = obj.GetType();
            if (t == typeof(MonthId))
            {
                return Equals((MonthId)obj);
            }
            if (t == typeof(int))
            {
                return value.Equals((int)obj);
            }

            return value.Equals(obj);
        }
        
        public static bool operator ==(MonthId x, MonthId y)
        {
            return x.value.Equals(y.value);
        }

        public static bool operator !=(MonthId x, MonthId y)
        {
            return !x.value.Equals(y.value);
        }

        public override int GetHashCode()
        {
            return value.GetHashCode();
        }

        public override string ToString() => value.ToString();

        // Default
        
        private class MonthIdTypeConverter : System.ComponentModel.TypeConverter
        {
            private static readonly Type WrapperType = typeof(MonthId);
            private static readonly Type ValueType = typeof(int);

            public override bool CanConvertFrom(System.ComponentModel.ITypeDescriptorContext context, Type sourceType)
            {
                if (sourceType == WrapperType || sourceType == ValueType)
                {
                    return true;
                }

                return base.CanConvertFrom(context, sourceType);
            }

            public override bool CanConvertTo(System.ComponentModel.ITypeDescriptorContext context, Type destinationType)
            {
                if (destinationType == WrapperType || destinationType == ValueType)
                {
                    return true;
                }

                return base.CanConvertTo(context, destinationType);
            }

            public override object ConvertFrom(System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
            {
                if (value != null)
                {
                    var t = value.GetType();
                    if (t == typeof(MonthId))
                    {
                        return (MonthId)value;
                    }
                    if (t == typeof(int))
                    {
                        return new MonthId((int)value);
                    }
                }

                return base.ConvertFrom(context, culture, value);
            }

            public override object ConvertTo(System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType)
            {
                if (value is MonthId wrappedValue)
                {
                    if (destinationType == WrapperType)
                    {
                        return wrappedValue;
                    }

                    if (destinationType == ValueType)
                    {
                        return wrappedValue.AsPrimitive();
                    }
                }

                return base.ConvertTo(context, culture, value, destinationType);
            }
        }
    }
}


// <auto-generated>
// THIS (.cs) FILE IS GENERATED BY UnitGenerator. DO NOT CHANGE IT.
// </auto-generated>
#pragma warning disable CS8669
using System;
using System.Globalization;
#if NET7_0_OR_GREATER
using System.Numerics;
#endif
namespace StronglyDemo
{
    [System.ComponentModel.TypeConverter(typeof(YearIdTypeConverter))]
    readonly partial struct YearId 
        : IEquatable<YearId>
#if NET7_0_OR_GREATER
        , IEqualityOperators<YearId, YearId, bool>
#endif    
    {
        readonly int value;

        public int AsPrimitive() => value;

        public YearId(int value)
        {
            this.value = value;
        }
        
        public static explicit operator int(YearId value)
        {
            return value.value;
        }

        public static explicit operator YearId(int value)
        {
            return new YearId(value);
        }

        public bool Equals(YearId other)
        {
            return value.Equals(other.value);
        }

        public override bool Equals(object obj)
        {
            if (obj == null) return false;
            var t = obj.GetType();
            if (t == typeof(YearId))
            {
                return Equals((YearId)obj);
            }
            if (t == typeof(int))
            {
                return value.Equals((int)obj);
            }

            return value.Equals(obj);
        }
        
        public static bool operator ==(YearId x, YearId y)
        {
            return x.value.Equals(y.value);
        }

        public static bool operator !=(YearId x, YearId y)
        {
            return !x.value.Equals(y.value);
        }

        public override int GetHashCode()
        {
            return value.GetHashCode();
        }

        public override string ToString() => value.ToString();

        // Default
        
        private class YearIdTypeConverter : System.ComponentModel.TypeConverter
        {
            private static readonly Type WrapperType = typeof(YearId);
            private static readonly Type ValueType = typeof(int);

            public override bool CanConvertFrom(System.ComponentModel.ITypeDescriptorContext context, Type sourceType)
            {
                if (sourceType == WrapperType || sourceType == ValueType)
                {
                    return true;
                }

                return base.CanConvertFrom(context, sourceType);
            }

            public override bool CanConvertTo(System.ComponentModel.ITypeDescriptorContext context, Type destinationType)
            {
                if (destinationType == WrapperType || destinationType == ValueType)
                {
                    return true;
                }

                return base.CanConvertTo(context, destinationType);
            }

            public override object ConvertFrom(System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
            {
                if (value != null)
                {
                    var t = value.GetType();
                    if (t == typeof(YearId))
                    {
                        return (YearId)value;
                    }
                    if (t == typeof(int))
                    {
                        return new YearId((int)value);
                    }
                }

                return base.ConvertFrom(context, culture, value);
            }

            public override object ConvertTo(System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType)
            {
                if (value is YearId wrappedValue)
                {
                    if (destinationType == WrapperType)
                    {
                        return wrappedValue;
                    }

                    if (destinationType == ValueType)
                    {
                        return wrappedValue.AsPrimitive();
                    }
                }

                return base.ConvertTo(context, culture, value, destinationType);
            }
        }
    }
}


// <auto-generated>
// THIS (.cs) FILE IS GENERATED BY UnitGenerator. DO NOT CHANGE IT.
// </auto-generated>
#pragma warning disable CS8669
#pragma warning disable CS8625
using System;
#if NET7_0_OR_GREATER
using System.Numerics;
#endif

namespace UnitGenerator
{
    [AttributeUsage(AttributeTargets.Struct, AllowMultiple = false)]
    internal class UnitOfAttribute : Attribute
    {
        public Type Type { get; }
        public UnitGenerateOptions Options { get; }
        public UnitArithmeticOperators ArithmeticOperators { get; set; } = UnitArithmeticOperators.All;
        public string ToStringFormat { get; set; }

        public UnitOfAttribute(Type type, UnitGenerateOptions options = UnitGenerateOptions.None)
        {
            this.Type = type;
            this.Options = options;
        }
    }
    
    [Flags]
    internal enum UnitGenerateOptions
    {
        None = 0,
        ImplicitOperator = 1,
        ParseMethod = 1 << 1,
        MinMaxMethod = 1 << 2,
        ArithmeticOperator = 1 << 3,
        ValueArithmeticOperator = 1 << 4,
        Comparable = 1 << 5,
        Validate = 1 << 6,
        JsonConverter = 1 << 7,
        MessagePackFormatter = 1 << 8,
        DapperTypeHandler = 1 << 9,
        EntityFrameworkValueConverter = 1 << 10,
        WithoutComparisonOperator = 1 << 11,
        JsonConverterDictionaryKeySupport = 1 << 12,
        Normalize = 1 << 13,
    }

    [Flags]
    internal enum UnitArithmeticOperators
    {
        All = Addition | Subtraction | Multiply | Division | Increment | Decrement,
        Addition = 1,
        Subtraction = 1 << 1,
        Multiply = 1 << 2,
        Division = 1 << 3,
        Increment = 1 << 4,
        Decrement = 1 << 5,
    }
}

Code and pdf at

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

RSCG – StaticReflection

RSCG – StaticReflection
 
 

name StaticReflection
nuget https://www.nuget.org/packages/FastStaticReflection/
https://www.nuget.org/packages/FastStaticReflection.CodeGen/
link https://github.com/Cricle/StaticReflection/
author Cricle

Call prop/methods on classes

 

This is how you can use StaticReflection .

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>

  <ItemGroup>
    <PackageReference Include="FastStaticReflection" Version="1.0.0-preview.3" />
    <PackageReference Include="FastStaticReflection.CodeGen" Version="1.0.0-preview.3" />
  </ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>
</Project>

The code that you will use is


using StaticReflection;
using StaticReflectionDemo;

var p = new Person();

PersonReflection.Instance.SetProperty(p, "FirstName","Andrei");
PersonReflection.Instance.SetProperty(p, "LastName", "Ignat");

Console.WriteLine(p.Name());



using StaticReflection.Annotions;

namespace StaticReflectionDemo;
[StaticReflection]
internal partial class Person
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Name()
    {
        return $"{FirstName} {LastName}";
    }
}

 

The code that is generated is

// <auto-generated/>
#pragma warning disable CS9082
#pragma warning disable CS8669
namespace StaticReflectionDemo
{
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("StaticReflection.CodeGen", "1.0.0")]
    [global::System.Diagnostics.DebuggerStepThrough]
    [global::System.Runtime.CompilerServices.CompilerGenerated]
    internal sealed class PersonReflection : StaticReflection.ITypeDefine
    {
        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("StaticReflection.CodeGen", "1.0.0")]
        [global::System.Diagnostics.DebuggerStepThrough]
        [global::System.Runtime.CompilerServices.CompilerGenerated]
        internal sealed class Person0PReflection : StaticReflection.IMemberInvokeDefine<StaticReflectionDemo.Person, string>, StaticReflection.IPropertyDefine, StaticReflection.IMemberAnonymousInvokeDefine
        {
            public static readonly Person0PReflection Instance = new Person0PReflection();
            public System.Type DeclareType { get; } = typeof(StaticReflectionDemo.Person);
            public System.String Name { get; } = "FirstName";
            public System.String MetadataName { get; } = "FirstName";
            public System.Boolean IsVirtual { get; } = false;
            public System.Boolean IsStatic { get; } = false;
            public System.Boolean IsOverride { get; } = false;
            public System.Boolean IsAbstract { get; } = false;
            public System.Boolean IsSealed { get; } = false;
            public System.Boolean IsDefinition { get; } = true;
            public System.Boolean IsExtern { get; } = false;
            public System.Boolean IsImplicitlyDeclared { get; } = false;
            public System.Boolean CanBeReferencedByName { get; } = true;
            public System.Boolean IsPublic { get; } = true;
            public System.Boolean IsPrivate { get; } = false;
            public System.Boolean IsProtected { get; } = false;
            public System.Boolean IsInternal { get; } = false;
            public System.Type PropertyType { get; } = typeof(string);
            public System.Boolean CanRead { get; } = true;
            public System.Boolean CanWrite { get; } = true;
            public System.Boolean IsRequired { get; } = false;
            public System.Boolean IsWithEvents { get; } = false;
            public System.Boolean ReturnsByRef { get; } = false;
            public System.Boolean ReturnsByRefReadonly { get; } = false;
            public System.Collections.Generic.IReadOnlyList<System.Attribute> GetterAttributes { get; } = new System.Attribute[]
            {
            };
            public System.Collections.Generic.IReadOnlyList<System.Attribute> SetterAttributes { get; } = new System.Attribute[]
            {
            };
            public System.Collections.Generic.IReadOnlyList<System.Attribute> Attributes { get; } = new System.Attribute[]
            {
            };

            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public string GetValue(Person instance)
            {
                return instance.FirstName;
            }

            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public void SetValue(Person instance, string value)
            {
                instance.FirstName = value;
            }

            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public void SetValueAnonymous(object instance, object value)
            {
                SetValue((StaticReflectionDemo.Person)instance, (string)value);
            }

            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public object GetValueAnonymous(object instance)
            {
                return (object)GetValue((StaticReflectionDemo.Person)instance);
            }
        }

        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("StaticReflection.CodeGen", "1.0.0")]
        [global::System.Diagnostics.DebuggerStepThrough]
        [global::System.Runtime.CompilerServices.CompilerGenerated]
        internal sealed class Person1PReflection : StaticReflection.IMemberInvokeDefine<StaticReflectionDemo.Person, string>, StaticReflection.IPropertyDefine, StaticReflection.IMemberAnonymousInvokeDefine
        {
            public static readonly Person1PReflection Instance = new Person1PReflection();
            public System.Type DeclareType { get; } = typeof(StaticReflectionDemo.Person);
            public System.String Name { get; } = "LastName";
            public System.String MetadataName { get; } = "LastName";
            public System.Boolean IsVirtual { get; } = false;
            public System.Boolean IsStatic { get; } = false;
            public System.Boolean IsOverride { get; } = false;
            public System.Boolean IsAbstract { get; } = false;
            public System.Boolean IsSealed { get; } = false;
            public System.Boolean IsDefinition { get; } = true;
            public System.Boolean IsExtern { get; } = false;
            public System.Boolean IsImplicitlyDeclared { get; } = false;
            public System.Boolean CanBeReferencedByName { get; } = true;
            public System.Boolean IsPublic { get; } = true;
            public System.Boolean IsPrivate { get; } = false;
            public System.Boolean IsProtected { get; } = false;
            public System.Boolean IsInternal { get; } = false;
            public System.Type PropertyType { get; } = typeof(string);
            public System.Boolean CanRead { get; } = true;
            public System.Boolean CanWrite { get; } = true;
            public System.Boolean IsRequired { get; } = false;
            public System.Boolean IsWithEvents { get; } = false;
            public System.Boolean ReturnsByRef { get; } = false;
            public System.Boolean ReturnsByRefReadonly { get; } = false;
            public System.Collections.Generic.IReadOnlyList<System.Attribute> GetterAttributes { get; } = new System.Attribute[]
            {
            };
            public System.Collections.Generic.IReadOnlyList<System.Attribute> SetterAttributes { get; } = new System.Attribute[]
            {
            };
            public System.Collections.Generic.IReadOnlyList<System.Attribute> Attributes { get; } = new System.Attribute[]
            {
            };

            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public string GetValue(Person instance)
            {
                return instance.LastName;
            }

            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public void SetValue(Person instance, string value)
            {
                instance.LastName = value;
            }

            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public void SetValueAnonymous(object instance, object value)
            {
                SetValue((StaticReflectionDemo.Person)instance, (string)value);
            }

            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public object GetValueAnonymous(object instance)
            {
                return (object)GetValue((StaticReflectionDemo.Person)instance);
            }
        }

        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("StaticReflection.CodeGen", "1.0.0")]
        [global::System.Diagnostics.DebuggerStepThrough]
        [global::System.Runtime.CompilerServices.CompilerGenerated]
        internal sealed class Person0MReflection : StaticReflection.IMethodDefine, StaticReflection.Invoking.IArgsMethod<StaticReflectionDemo.Person, string>, StaticReflection.Invoking.IArgs0AnonymousMethod, StaticReflection.Invoking.IUsualArgsMethod<StaticReflectionDemo.Person, string>, StaticReflection.Invoking.IUsualArgs0AnonymousMethod
        {
            public static readonly Person0MReflection Instance = new Person0MReflection();
            private Person0MReflection()
            {
            }

            public System.String Name { get; } = "Name";
            public System.String MetadataName { get; } = "Name";
            public System.Boolean IsVirtual { get; } = false;
            public System.Boolean IsStatic { get; } = false;
            public System.Boolean IsOverride { get; } = false;
            public System.Boolean IsAbstract { get; } = false;
            public System.Boolean IsSealed { get; } = false;
            public System.Boolean IsDefinition { get; } = true;
            public System.Boolean IsExtern { get; } = false;
            public System.Boolean IsImplicitlyDeclared { get; } = false;
            public System.Boolean CanBeReferencedByName { get; } = true;
            public System.Boolean IsPublic { get; } = true;
            public System.Boolean IsPrivate { get; } = false;
            public System.Boolean IsProtected { get; } = false;
            public System.Boolean IsInternal { get; } = false;
            public System.Collections.Generic.IReadOnlyList<System.Attribute> Attributes { get; } = new System.Attribute[]
            {
            };
            public System.Type DeclareType { get; } = typeof(StaticReflectionDemo.Person);
            public System.Boolean ReturnsByRef { get; } = false;
            public StaticReflection.StaticMethodKind MethodKind { get; } = StaticReflection.StaticMethodKind.Ordinary;
            public StaticReflection.StaticRefKind RefKind { get; } = StaticReflection.StaticRefKind.None;
            public StaticReflection.StaticNullableAnnotation ReturnNullableAnnotation { get; } = StaticReflection.StaticNullableAnnotation.NotAnnotated;
            public StaticReflection.StaticNullableAnnotation ReceiverNullableAnnotation { get; } = StaticReflection.StaticNullableAnnotation.NotAnnotated;
            public System.Boolean ReturnsByRefReadonly { get; } = false;
            public System.Type ReturnType { get; } = typeof(string);
            public System.Collections.Generic.IReadOnlyList<System.Type> ArgumentTypes { get; } = new System.Type[]
            {
            };
            public System.Boolean IsGenericMethod { get; } = false;
            public System.Int32 Arity { get; } = 0;
            public System.Boolean IsExtensionMethod { get; } = false;
            public System.Boolean IsAsync { get; } = false;
            public System.Boolean IsVararg { get; } = false;
            public System.Boolean IsCheckedBuiltin { get; } = false;
            public System.Boolean HidesBaseMethodsByName { get; } = false;
            public System.Boolean ReturnsVoid { get; } = false;
            public System.Boolean IsReadOnly { get; } = false;
            public System.Boolean IsInitOnly { get; } = false;
            public System.Boolean IsPartialDefinition { get; } = false;
            public System.Boolean IsConditional { get; } = false;
            public System.Collections.Generic.IReadOnlyList<StaticReflection.ITypeArgumentDefine> TypeArguments { get; } = new StaticReflection.ITypeArgumentDefine[]
            {
            };
            public System.Collections.Generic.IReadOnlyList<System.Attribute> ReturnTypeAttributes { get; } = new System.Attribute[]
            {
            };

            [global::System.Runtime.CompilerServices.MethodImpl(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public 
#if !NET7_0_OR_GREATER
            unsafe 
#endif
            ref string Invoke(StaticReflectionDemo.Person instance)
            {
                ref string result = ref System.Runtime.CompilerServices.Unsafe.AsRef(instance.Name());
                return ref result;
            }

            public 
#if !NET7_0_OR_GREATER
            unsafe 
#endif
            ref object InvokeAnonymous(object instance)
            {
                return ref System.Runtime.CompilerServices.Unsafe.AsRef<object>(Invoke((StaticReflectionDemo.Person)instance));
            }

            [global::System.Runtime.CompilerServices.MethodImpl(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public string InvokeUsual(StaticReflectionDemo.Person instance)
            {
                return instance.Name();
            }

            public object InvokeUsualAnonymous(object instance)
            {
                return InvokeUsual((StaticReflectionDemo.Person)instance);
            }
        }

        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("StaticReflection.CodeGen", "1.0.0")]
        [global::System.Diagnostics.DebuggerStepThrough]
        [global::System.Runtime.CompilerServices.CompilerGenerated]
        internal sealed class Person0CReflection : StaticReflection.IConstructorDefine, StaticReflection.Invoking.IArgsMethod<StaticReflectionDemo.Person, StaticReflectionDemo.Person>, StaticReflection.Invoking.IArgs0AnonymousMethod, StaticReflection.Invoking.IUsualArgsMethod<StaticReflectionDemo.Person, StaticReflectionDemo.Person>, StaticReflection.Invoking.IUsualArgs0AnonymousMethod
        {
            public static readonly Person0CReflection Instance = new Person0CReflection();
            private Person0CReflection()
            {
            }

            public System.String Name { get; } = ".ctor";
            public System.String MetadataName { get; } = ".ctor";
            public System.Boolean IsVirtual { get; } = false;
            public System.Boolean IsStatic { get; } = false;
            public System.Boolean IsOverride { get; } = false;
            public System.Boolean IsAbstract { get; } = false;
            public System.Boolean IsSealed { get; } = false;
            public System.Boolean IsDefinition { get; } = true;
            public System.Boolean IsExtern { get; } = false;
            public System.Boolean IsImplicitlyDeclared { get; } = true;
            public System.Boolean CanBeReferencedByName { get; } = false;
            public System.Boolean IsPublic { get; } = true;
            public System.Boolean IsPrivate { get; } = false;
            public System.Boolean IsProtected { get; } = false;
            public System.Boolean IsInternal { get; } = false;
            public System.Collections.Generic.IReadOnlyList<System.Attribute> Attributes { get; } = new System.Attribute[]
            {
            };
            public System.Type DeclareType { get; } = typeof(StaticReflectionDemo.Person);
            public System.Boolean ReturnsByRef { get; } = false;
            public StaticReflection.StaticMethodKind MethodKind { get; } = StaticReflection.StaticMethodKind.Constructor;
            public StaticReflection.StaticRefKind RefKind { get; } = StaticReflection.StaticRefKind.None;
            public StaticReflection.StaticNullableAnnotation ReturnNullableAnnotation { get; } = StaticReflection.StaticNullableAnnotation.NotAnnotated;
            public StaticReflection.StaticNullableAnnotation ReceiverNullableAnnotation { get; } = StaticReflection.StaticNullableAnnotation.NotAnnotated;
            public System.Boolean ReturnsByRefReadonly { get; } = false;
            public System.Type ReturnType { get; } = typeof(StaticReflectionDemo.Person);
            public System.Collections.Generic.IReadOnlyList<System.Type> ArgumentTypes { get; } = new System.Type[]
            {
            };
            public System.Boolean IsGenericMethod { get; } = false;
            public System.Int32 Arity { get; } = 0;
            public System.Boolean IsExtensionMethod { get; } = false;
            public System.Boolean IsAsync { get; } = false;
            public System.Boolean IsVararg { get; } = false;
            public System.Boolean IsCheckedBuiltin { get; } = false;
            public System.Boolean HidesBaseMethodsByName { get; } = false;
            public System.Boolean ReturnsVoid { get; } = true;
            public System.Boolean IsReadOnly { get; } = false;
            public System.Boolean IsInitOnly { get; } = false;
            public System.Boolean IsPartialDefinition { get; } = false;
            public System.Boolean IsConditional { get; } = false;
            public System.Collections.Generic.IReadOnlyList<StaticReflection.ITypeArgumentDefine> TypeArguments { get; } = new StaticReflection.ITypeArgumentDefine[]
            {
            };
            public System.Collections.Generic.IReadOnlyList<System.Attribute> ReturnTypeAttributes { get; } = new System.Attribute[]
            {
            };

            [global::System.Runtime.CompilerServices.MethodImpl(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public 
#if !NET7_0_OR_GREATER
            unsafe 
#endif
            ref StaticReflectionDemo.Person Invoke(StaticReflectionDemo.Person instance)
            {
                ref StaticReflectionDemo.Person result = ref System.Runtime.CompilerServices.Unsafe.AsRef(new Person());
                return ref result;
            }

            public 
#if !NET7_0_OR_GREATER
            unsafe 
#endif
            ref object InvokeAnonymous(object instance)
            {
                return ref System.Runtime.CompilerServices.Unsafe.AsRef<object>(Invoke((StaticReflectionDemo.Person)instance));
            }

            [global::System.Runtime.CompilerServices.MethodImpl(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
            public StaticReflectionDemo.Person InvokeUsual(StaticReflectionDemo.Person instance)
            {
                return new Person();
            }

            public object InvokeUsualAnonymous(object instance)
            {
                return InvokeUsual((StaticReflectionDemo.Person)instance);
            }
        }

        public static readonly PersonReflection Instance = new PersonReflection();
        public System.Type DeclareType { get; } = typeof(StaticReflectionDemo.Person);
        public System.String Name { get; } = "Person";
        public System.String MetadataName { get; } = "Person";
        public System.Boolean IsVirtual { get; } = false;
        public System.Boolean IsStatic { get; } = false;
        public System.Boolean IsOverride { get; } = false;
        public System.Boolean IsAbstract { get; } = false;
        public System.Boolean IsSealed { get; } = false;
        public System.Boolean IsDefinition { get; } = true;
        public System.Boolean IsExtern { get; } = false;
        public System.Boolean IsImplicitlyDeclared { get; } = false;
        public System.Boolean CanBeReferencedByName { get; } = true;
        public System.Boolean IsPublic { get; } = false;
        public System.Boolean IsPrivate { get; } = false;
        public System.Boolean IsProtected { get; } = false;
        public System.Boolean IsInternal { get; } = true;
        public System.Type? BaseType { get; } = typeof(StaticReflectionDemo.Person);
        public System.Boolean IsReferenceType { get; } = true;
        public System.Boolean IsValueType { get; } = false;
        public System.Boolean IsAnonymousType { get; } = false;
        public System.Boolean IsTupleType { get; } = false;
        public System.Boolean IsNativeIntegerType { get; } = false;
        public System.Boolean IsRefLikeType { get; } = false;
        public System.Boolean IsUnmanagedType { get; } = false;
        public System.Boolean IsReadOnly { get; } = false;
        public System.Boolean IsRecord { get; } = false;
        public System.Int32 TypeKind { get; } = 2;
        public StaticReflection.StaticNullableAnnotation NullableAnnotation { get; } = StaticReflection.StaticNullableAnnotation.None;
        public System.Collections.Generic.IReadOnlyList<System.String> Interfaces { get; } = new System.String[]
        {
        };
        public System.Collections.Generic.IReadOnlyList<System.String> AllInterfaces { get; } = new System.String[]
        {
        };
        public System.Collections.Generic.IReadOnlyList<System.Attribute> Attributes { get; } = new System.Attribute[]
        {
            new StaticReflection.Annotions.StaticReflectionAttribute()
            {
            }
        };
        public System.Collections.Generic.IReadOnlyList<StaticReflection.IPropertyDefine> Properties { get; } = new StaticReflection.IPropertyDefine[]
        {
            Person0PReflection.Instance,
            Person1PReflection.Instance
        };
        public System.Collections.Generic.IReadOnlyList<StaticReflection.IMethodDefine> Methods { get; } = new StaticReflection.IMethodDefine[]
        {
            Person0MReflection.Instance
        };
        public System.Collections.Generic.IReadOnlyList<StaticReflection.IEventDefine> Events { get; } = new StaticReflection.IEventDefine[]
        {
        };
        public System.Collections.Generic.IReadOnlyList<StaticReflection.IFieldDefine> Fields { get; } = new StaticReflection.IFieldDefine[]
        {
        };
        public System.Collections.Generic.IReadOnlyList<StaticReflection.IConstructorDefine> Constructors { get; } = new StaticReflection.IConstructorDefine[]
        {
            Person0CReflection.Instance
        };
    }
}

Code and pdf at

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

RSCG – CredFetoEnum

RSCG – CredFetoEnum
 
 

name CredFetoEnum
nuget https://www.nuget.org/packages/Credfeto.Enumeration.Source.Generation/
link https://github.com/credfeto/credfeto-enum-source-generation
author Mark Ridgwell

Enum / description to string

 

This is how you can use CredFetoEnum .

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>

  <ItemGroup>
    <PackageReference Include="Credfeto.Enumeration.Source.Generation" Version="1.1.0.138" OutputItemType="Analyzer">
      <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


using EnumClassDemo;
Console.WriteLine(Colors.None.GetName());
Console.WriteLine(Colors.None.GetDescription());



using System.ComponentModel;

namespace EnumClassDemo;

public enum Colors
{
    [Description("This should be never seen")]
    None =0,
    Red,
    Green,
    Blue,
}

 

The code that is generated is

using System;
using System.CodeDom.Compiler;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Runtime.CompilerServices;

namespace EnumClassDemo;

[GeneratedCode(tool: "Credfeto.Enumeration.Source.Generation.EnumGenerator", version: "1.1.0.138+a4e45a10ca3da5e916ae17843913bfff8c33cdef")]
public static class ColorsGeneratedExtensions
{
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static string GetName(this Colors value)
    {
        return value switch
        {
            Colors.None => nameof(Colors.None),
            Colors.Red => nameof(Colors.Red),
            Colors.Green => nameof(Colors.Green),
            Colors.Blue => nameof(Colors.Blue),
            _ => ThrowInvalidEnumMemberException(value: value)
        };
    }

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static string GetDescription(this Colors value)
    {
        return value switch
        {
            Colors.None => "This should be never seen",
            _ => GetName(value)
        };
    }

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static bool IsDefined(this Colors value)
    {
        return value is Colors.None or Colors.Red or Colors.Green or Colors.Blue;
    }

    public static string ThrowInvalidEnumMemberException(this Colors value)
    {
        #if NET7_0_OR_GREATER
        throw new UnreachableException(message: "Colors: Unknown enum member");
        #else
        throw new ArgumentOutOfRangeException(nameof(value), actualValue: value, message: "Unknown enum member");
        #endif
    }
}

Code and pdf at

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

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