Category: .NET Core

RSCG – MakeInterface.Generator
 
 

Generating interface from class definition

This is how you can use MakeInterface.Generator .

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="MakeInterface.Contracts" Version="0.4.0" />
    <PackageReference Include="MakeInterface.Generator" Version="0.4.0" 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

// See https://aka.ms/new-console-template for more information
using Class2Interface;

Console.WriteLine("Hello, World!");
IPerson person=new Person();
person.FirstName="Andrei";
person.LastName="Ignat";
Console.WriteLine(person.FullName());

using MakeInterface.Contracts.Attributes;

namespace Class2Interface;
[GenerateInterface]
internal class Person:IPerson
{
    public int ID { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Name
    {
        get
        {
            return $"{FirstName} {LastName}";
        }
    }
    public string FullName()
    {
        return $"{FirstName} {LastName}";
    }
}

The code that is generated is

using MakeInterface.Contracts.Attributes;

// <auto-generated/>
#pragma warning disable
#nullable enable
namespace Class2Interface;
public partial interface IPerson
{
    int ID { get; set; }

    string FirstName { get; set; }

    string LastName { get; set; }

    string Name { get; }

    string FullName();
}

Code and pdf at

https://ignatandrei.github.io/RSCG_Examples/v2/docs/MakeInterface.Generator

RSCG – Funcky.DiscriminatedUnion
 
 

Generating discriminated unions for C# 9.0 and above.

This is how you can use Funcky.DiscriminatedUnion .

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="Funcky.DiscriminatedUnion" Version="1.1.0"  />
  </ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>
</Project>

The code that you will use is

using Union;

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

Console.WriteLine(data.Match(ok => true, error => false));
data = SaveToDatabase.Save(1);
Console.WriteLine(data.Match(ok => true, error => false));

namespace Union;

[Funcky.DiscriminatedUnion]
public abstract partial record ResultSave
{
    public partial record Success(int Value): ResultSave;
    public partial record ValidationError(string Message):ResultSave;

    //public sealed partial record Ok(T Value) : ResultSave<T>;

    //public sealed partial record Error(Exception Exception) : ResultSave<T>;
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

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

The code that is generated is

// <auto-generated/>
#nullable enable

namespace Funcky
{
    [global::System.Diagnostics.Conditional("Funcky_DiscriminatedUnion")]
    [global::System.AttributeUsage(global::System.AttributeTargets.Class)]
    internal sealed class DiscriminatedUnionAttribute : global::System.Attribute
    {
        /// <summary>Allow only consumers in the same assembly to use the exhaustive <c>Match</c> and <c>Switch</c> methods.</summary>
        public bool NonExhaustive { get; set; }

        /// <summary>Generates exhaustive <c>Match</c> and <c>Switch</c> methods for the entire type hierarchy.</summary>
        public bool Flatten { get; set; }

        /// <summary>Customized the generic type name used for the result in the generated <c>Match</c> methods. Defaults to <c>TResult</c>.</summary>
        public string? MatchResultTypeName { get; set; }
    }
}

// <auto-generated/>
#nullable enable

namespace Union
{
    partial record ResultSave
    {
        [global::System.CodeDom.Compiler.GeneratedCode("Funcky.DiscriminatedUnion.SourceGeneration", "1.1.0.0")]
        public abstract TResult Match<TResult>(global::System.Func<Success, TResult> success, global::System.Func<ValidationError, TResult> validationError);
        
        [global::System.CodeDom.Compiler.GeneratedCode("Funcky.DiscriminatedUnion.SourceGeneration", "1.1.0.0")]
        public abstract void Switch(global::System.Action<Success> success, global::System.Action<ValidationError> validationError);
        
        partial record Success
        {
            [global::System.CodeDom.Compiler.GeneratedCode("Funcky.DiscriminatedUnion.SourceGeneration", "1.1.0.0")]
            public override TResult Match<TResult>(global::System.Func<Success, TResult> success, global::System.Func<ValidationError, TResult> validationError) => success(this);
            
            [global::System.CodeDom.Compiler.GeneratedCode("Funcky.DiscriminatedUnion.SourceGeneration", "1.1.0.0")]
            public override void Switch(global::System.Action<Success> success, global::System.Action<ValidationError> validationError) => success(this);
        }
        
        partial record ValidationError
        {
            [global::System.CodeDom.Compiler.GeneratedCode("Funcky.DiscriminatedUnion.SourceGeneration", "1.1.0.0")]
            public override TResult Match<TResult>(global::System.Func<Success, TResult> success, global::System.Func<ValidationError, TResult> validationError) => validationError(this);
            
            [global::System.CodeDom.Compiler.GeneratedCode("Funcky.DiscriminatedUnion.SourceGeneration", "1.1.0.0")]
            public override void Switch(global::System.Action<Success> success, global::System.Action<ValidationError> validationError) => validationError(this);
        }
    }
}

Code and pdf at

https://ignatandrei.github.io/RSCG_Examples/v2/docs/Funcky.DiscriminatedUnion

RSCG – DomainPrimitives
 
 

One of the most complete and mature libraries for DomainPrimitives in .NET

This is how you can use DomainPrimitives .

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="AltaSoft.DomainPrimitives.Abstractions" Version="1.0.3" />
		<PackageReference Include="AltaSoft.DomainPrimitives.Generator" Version="1.0.3" OutputItemType="Analyzer" ReferenceOutputAssembly="false" PrivateAssets="all" ExcludeAssets="runtime" />
	</ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>

	<PropertyGroup>
		<!--<DomainPrimitiveGenerator_GenerateJsonConverters>false</DomainPrimitiveGenerator_GenerateJsonConverters>-->
		<!--<DomainPrimitiveGenerator_GenerateTypeConverters>false</DomainPrimitiveGenerator_GenerateTypeConverters>-->
		<DomainPrimitiveGenerator_GenerateSwaggerConverters>false</DomainPrimitiveGenerator_GenerateSwaggerConverters>
	</PropertyGroup>
	<ItemGroup>
		<!--<CompilerVisibleProperty Include="DomainPrimitiveGenerator_GenerateTypeConverters" />-->
		<!--<CompilerVisibleProperty Include="DomainPrimitiveGenerator_GenerateJsonConverters" />-->
		<CompilerVisibleProperty Include="DomainPrimitiveGenerator_GenerateSwaggerConverters" />
	</ItemGroup>

</Project>

The code that you will use is

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

var year = new YearDate(1970);
var month = new MonthDate(4);
var day = new DayDate(16);
year += 1;
var p=new Person(year,month,day);

Console.WriteLine(p.DOB);

using AltaSoft.DomainPrimitives.Abstractions;

namespace DomainPrimitives;

public readonly partial record struct YearDate : IDomainValue<int>
{
    public static void Validate(int value)
    {
        if (value <= 0)
            throw new InvalidDomainValueException("year must be positive");
    }
    public static int Default => 1;
}
public readonly partial record struct MonthDate : IDomainValue<int>
{
    public static void Validate(int value)
    {
        if (value <= 0)
            throw new InvalidDomainValueException("year must be positive");
    }
    public static int Default => 1;
}

public readonly partial record struct DayDate : IDomainValue<int>
{
    public static void Validate(int value)
    {
        if (value <= 0)
            throw new InvalidDomainValueException("year must be positive");
    }
    public static int Default => 1;
}

namespace DomainPrimitives;
internal class Person
{
    public Person(YearDate year,MonthDate month,DayDate day)
    {
        DOB = new DateOnly(year,month,day);
    }
    public DateOnly DOB { get; private set; }

    
}

The code that is generated is

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a AltaSoft.DomainPrimitives.Generator v1.0.0
//     Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

#nullable enable

using System;
using System.Numerics;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Text.Json.Serialization;
using DomainPrimitives.Converters;
using System.ComponentModel;

namespace DomainPrimitives;

[JsonConverter(typeof(DayDateJsonConverter))]
[TypeConverter(typeof(DayDateTypeConverter))]
[DebuggerDisplay("{_valueOrDefault}")]
public readonly partial record struct DayDate :
		IAdditionOperators<DayDate, DayDate, DayDate>,
		ISubtractionOperators<DayDate, DayDate, DayDate>,
		IMultiplyOperators<DayDate, DayDate, DayDate>,
		IDivisionOperators<DayDate, DayDate, DayDate>,
		IModulusOperators<DayDate, DayDate, DayDate>,
		IComparisonOperators<DayDate, DayDate, bool>,
		IComparable,
		IComparable<DayDate>,
		IParsable<DayDate>,
		IConvertible
{
	private int _valueOrDefault => _isInitialized ? _value : Default;
	[DebuggerBrowsable(DebuggerBrowsableState.Never)]
	private readonly int _value;
	[DebuggerBrowsable(DebuggerBrowsableState.Never)]
	private readonly bool _isInitialized;
	
	/// <summary>
	/// Initializes a new instance of the <see cref="DayDate"/> class by validating the specified <see cref="int"/> value using <see cref="Validate"/> static method.
	/// </summary>
	/// <param name="value">The value to be validated..</param>
	public DayDate(int value)
	{
			Validate(value);
			_value = value;
			_isInitialized = true;
	}
	
	[Obsolete("Domain primitive cannot be created using empty Ctor", true)]
	public DayDate() : this(Default)
	{
	}
	
	/// <summary>
	/// <summary>Implicit conversion from <see cref = "int"/> to <see cref = "DayDate"/></summary>
	/// </summary>
	public static implicit operator DayDate(int value) => new(value);

	/// <summary>
	/// <summary>Implicit conversion from <see cref = "int?"/> to <see cref = "DayDate?"/></summary>
	/// </summary>
	[return: NotNullIfNotNull(nameof(value))]
	public static implicit operator DayDate?(int? value) => value is null ? null : new(value.Value);

	/// <summary>
	/// <summary>Implicit conversion from <see cref = "DayDate"/> to <see cref = "int"/></summary>
	/// </summary>
	public static implicit operator int(DayDate value) => (int)value._valueOrDefault;

	/// <inheritdoc/>
	public static DayDate operator +(DayDate left, DayDate right) => new(left._valueOrDefault + right._valueOrDefault);

	/// <inheritdoc/>
	public static DayDate operator -(DayDate left, DayDate right) => new(left._valueOrDefault - right._valueOrDefault);

	/// <inheritdoc/>
	public static DayDate operator *(DayDate left, DayDate right) => new(left._valueOrDefault * right._valueOrDefault);

	/// <inheritdoc/>
	public static DayDate operator /(DayDate left, DayDate right) => new(left._valueOrDefault / right._valueOrDefault);

	/// <inheritdoc/>
	public static DayDate operator %(DayDate left, DayDate right) => new(left._valueOrDefault % right._valueOrDefault);

	/// <inheritdoc/>
	public int CompareTo(object? value)
	{
		if (value is null)
			return 1;

		if (value is DayDate c)
			return CompareTo(c);

		throw new ArgumentException("Object is not a DayDate", nameof(value));
	}

	/// <inheritdoc/>
	public int CompareTo(DayDate other) => _valueOrDefault.CompareTo(other._valueOrDefault);

	/// <inheritdoc/>
	public static bool operator <(DayDate left, DayDate right) => left._valueOrDefault < right._valueOrDefault;

	/// <inheritdoc/>
	public static bool operator <=(DayDate left, DayDate right) => left._valueOrDefault <= right._valueOrDefault;

	/// <inheritdoc/>
	public static bool operator >(DayDate left, DayDate right) => left._valueOrDefault > right._valueOrDefault;

	/// <inheritdoc/>
	public static bool operator >=(DayDate left, DayDate right) => left._valueOrDefault >= right._valueOrDefault;


	/// <inheritdoc/>
	public static DayDate Parse(string s, IFormatProvider? provider) => int.Parse(s, provider);

	/// <inheritdoc/>
	public static bool TryParse(string? s, IFormatProvider? provider, out DayDate result)
	{
		if (int.TryParse(s, provider, out var value))
		{
			result = new DayDate(value);
			return true;
		}
		result = default;
		return false;
	}


	/// <inheritdoc/>
	public override string ToString() => _valueOrDefault.ToString();

	/// <inheritdoc/>
	TypeCode IConvertible.GetTypeCode() => ((IConvertible)_valueOrDefault).GetTypeCode();

	/// <inheritdoc/>
	bool IConvertible.ToBoolean(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToBoolean(provider);

	/// <inheritdoc/>
	byte IConvertible.ToByte(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToByte(provider);

	/// <inheritdoc/>
	char IConvertible.ToChar(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToChar(provider);

	/// <inheritdoc/>
	DateTime IConvertible.ToDateTime(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToDateTime(provider);

	/// <inheritdoc/>
	decimal IConvertible.ToDecimal(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToDecimal(provider);

	/// <inheritdoc/>
	double IConvertible.ToDouble(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToDouble(provider);

	/// <inheritdoc/>
	short IConvertible.ToInt16(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToInt16(provider);

	/// <inheritdoc/>
	int IConvertible.ToInt32(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToInt32(provider);

	/// <inheritdoc/>
	long IConvertible.ToInt64(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToInt64(provider);

	/// <inheritdoc/>
	sbyte IConvertible.ToSByte(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToSByte(provider);

	/// <inheritdoc/>
	float IConvertible.ToSingle(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToSingle(provider);

	/// <inheritdoc/>
	string IConvertible.ToString(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToString(provider);

	/// <inheritdoc/>
	object IConvertible.ToType(Type conversionType, IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToType(conversionType, provider);

	/// <inheritdoc/>
	ushort IConvertible.ToUInt16(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToUInt16(provider);

	/// <inheritdoc/>
	uint IConvertible.ToUInt32(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToUInt32(provider);

	/// <inheritdoc/>
	ulong IConvertible.ToUInt64(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToUInt64(provider);
}

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a AltaSoft.DomainPrimitives.Generator v1.0.0
//     Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

#nullable enable

using DomainPrimitives;
using System;
using System.Text.Json;
using System.Text.Json.Serialization;
using System.Globalization;
using System.Text.Json.Serialization.Metadata;
using AltaSoft.DomainPrimitives.Abstractions;

namespace DomainPrimitives.Converters;

/// <summary>
/// JsonConverter for <see cref = "DayDate"/>
/// </summary>
public sealed class DayDateJsonConverter : JsonConverter<DayDate>
{
	/// <inheritdoc/>
	public override DayDate Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
	{
		try
		{
			return JsonInternalConverters.Int32Converter.Read(ref reader, typeToConvert, options);
		}
		catch (InvalidDomainValueException ex)
		{
			throw new JsonException(ex.Message);
		}
	}

	/// <inheritdoc/>
	public override void Write(Utf8JsonWriter writer, DayDate value, JsonSerializerOptions options)
	{
		JsonInternalConverters.Int32Converter.Write(writer, (int)value, options);
	}

	/// <inheritdoc/>
	public override DayDate ReadAsPropertyName(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
	{
		try
		{
			return JsonInternalConverters.Int32Converter.ReadAsPropertyName(ref reader, typeToConvert, options);
		}
		catch (InvalidDomainValueException ex)
		{
			throw new JsonException(ex.Message);
		}
	}

	/// <inheritdoc/>
	public override void WriteAsPropertyName(Utf8JsonWriter writer, DayDate value, JsonSerializerOptions options)
	{
		JsonInternalConverters.Int32Converter.WriteAsPropertyName(writer, (int)value, options);
	}
}

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a AltaSoft.DomainPrimitives.Generator v1.0.0
//     Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

#nullable enable

using DomainPrimitives;
using System;
using System.ComponentModel;
using System.Globalization;
using AltaSoft.DomainPrimitives.Abstractions;

namespace DomainPrimitives.Converters;

/// <summary>
/// TypeConverter for <see cref = "DayDate"/>
/// </summary>
public sealed class DayDateTypeConverter : Int32Converter
{
	/// <inheritdoc/>
	public override object? ConvertFrom(ITypeDescriptorContext? context, CultureInfo? culture, object value)
	{
		var result = base.ConvertFrom(context, culture, value);
		if (result is null)
			return null;
		try
		{
			return new DayDate((int)result);
		}
		catch (InvalidDomainValueException ex)
		{
			throw new FormatException("Cannot parse DayDate", ex);
		}
	}
}

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a AltaSoft.DomainPrimitives.Generator v1.0.0
//     Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

#nullable enable

using System;
using System.Numerics;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Text.Json.Serialization;
using DomainPrimitives.Converters;
using System.ComponentModel;

namespace DomainPrimitives;

[JsonConverter(typeof(MonthDateJsonConverter))]
[TypeConverter(typeof(MonthDateTypeConverter))]
[DebuggerDisplay("{_valueOrDefault}")]
public readonly partial record struct MonthDate :
		IAdditionOperators<MonthDate, MonthDate, MonthDate>,
		ISubtractionOperators<MonthDate, MonthDate, MonthDate>,
		IMultiplyOperators<MonthDate, MonthDate, MonthDate>,
		IDivisionOperators<MonthDate, MonthDate, MonthDate>,
		IModulusOperators<MonthDate, MonthDate, MonthDate>,
		IComparisonOperators<MonthDate, MonthDate, bool>,
		IComparable,
		IComparable<MonthDate>,
		IParsable<MonthDate>,
		IConvertible
{
	private int _valueOrDefault => _isInitialized ? _value : Default;
	[DebuggerBrowsable(DebuggerBrowsableState.Never)]
	private readonly int _value;
	[DebuggerBrowsable(DebuggerBrowsableState.Never)]
	private readonly bool _isInitialized;
	
	/// <summary>
	/// Initializes a new instance of the <see cref="MonthDate"/> class by validating the specified <see cref="int"/> value using <see cref="Validate"/> static method.
	/// </summary>
	/// <param name="value">The value to be validated..</param>
	public MonthDate(int value)
	{
			Validate(value);
			_value = value;
			_isInitialized = true;
	}
	
	[Obsolete("Domain primitive cannot be created using empty Ctor", true)]
	public MonthDate() : this(Default)
	{
	}
	
	/// <summary>
	/// <summary>Implicit conversion from <see cref = "int"/> to <see cref = "MonthDate"/></summary>
	/// </summary>
	public static implicit operator MonthDate(int value) => new(value);

	/// <summary>
	/// <summary>Implicit conversion from <see cref = "int?"/> to <see cref = "MonthDate?"/></summary>
	/// </summary>
	[return: NotNullIfNotNull(nameof(value))]
	public static implicit operator MonthDate?(int? value) => value is null ? null : new(value.Value);

	/// <summary>
	/// <summary>Implicit conversion from <see cref = "MonthDate"/> to <see cref = "int"/></summary>
	/// </summary>
	public static implicit operator int(MonthDate value) => (int)value._valueOrDefault;

	/// <inheritdoc/>
	public static MonthDate operator +(MonthDate left, MonthDate right) => new(left._valueOrDefault + right._valueOrDefault);

	/// <inheritdoc/>
	public static MonthDate operator -(MonthDate left, MonthDate right) => new(left._valueOrDefault - right._valueOrDefault);

	/// <inheritdoc/>
	public static MonthDate operator *(MonthDate left, MonthDate right) => new(left._valueOrDefault * right._valueOrDefault);

	/// <inheritdoc/>
	public static MonthDate operator /(MonthDate left, MonthDate right) => new(left._valueOrDefault / right._valueOrDefault);

	/// <inheritdoc/>
	public static MonthDate operator %(MonthDate left, MonthDate right) => new(left._valueOrDefault % right._valueOrDefault);

	/// <inheritdoc/>
	public int CompareTo(object? value)
	{
		if (value is null)
			return 1;

		if (value is MonthDate c)
			return CompareTo(c);

		throw new ArgumentException("Object is not a MonthDate", nameof(value));
	}

	/// <inheritdoc/>
	public int CompareTo(MonthDate other) => _valueOrDefault.CompareTo(other._valueOrDefault);

	/// <inheritdoc/>
	public static bool operator <(MonthDate left, MonthDate right) => left._valueOrDefault < right._valueOrDefault;

	/// <inheritdoc/>
	public static bool operator <=(MonthDate left, MonthDate right) => left._valueOrDefault <= right._valueOrDefault;

	/// <inheritdoc/>
	public static bool operator >(MonthDate left, MonthDate right) => left._valueOrDefault > right._valueOrDefault;

	/// <inheritdoc/>
	public static bool operator >=(MonthDate left, MonthDate right) => left._valueOrDefault >= right._valueOrDefault;


	/// <inheritdoc/>
	public static MonthDate Parse(string s, IFormatProvider? provider) => int.Parse(s, provider);

	/// <inheritdoc/>
	public static bool TryParse(string? s, IFormatProvider? provider, out MonthDate result)
	{
		if (int.TryParse(s, provider, out var value))
		{
			result = new MonthDate(value);
			return true;
		}
		result = default;
		return false;
	}


	/// <inheritdoc/>
	public override string ToString() => _valueOrDefault.ToString();

	/// <inheritdoc/>
	TypeCode IConvertible.GetTypeCode() => ((IConvertible)_valueOrDefault).GetTypeCode();

	/// <inheritdoc/>
	bool IConvertible.ToBoolean(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToBoolean(provider);

	/// <inheritdoc/>
	byte IConvertible.ToByte(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToByte(provider);

	/// <inheritdoc/>
	char IConvertible.ToChar(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToChar(provider);

	/// <inheritdoc/>
	DateTime IConvertible.ToDateTime(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToDateTime(provider);

	/// <inheritdoc/>
	decimal IConvertible.ToDecimal(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToDecimal(provider);

	/// <inheritdoc/>
	double IConvertible.ToDouble(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToDouble(provider);

	/// <inheritdoc/>
	short IConvertible.ToInt16(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToInt16(provider);

	/// <inheritdoc/>
	int IConvertible.ToInt32(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToInt32(provider);

	/// <inheritdoc/>
	long IConvertible.ToInt64(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToInt64(provider);

	/// <inheritdoc/>
	sbyte IConvertible.ToSByte(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToSByte(provider);

	/// <inheritdoc/>
	float IConvertible.ToSingle(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToSingle(provider);

	/// <inheritdoc/>
	string IConvertible.ToString(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToString(provider);

	/// <inheritdoc/>
	object IConvertible.ToType(Type conversionType, IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToType(conversionType, provider);

	/// <inheritdoc/>
	ushort IConvertible.ToUInt16(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToUInt16(provider);

	/// <inheritdoc/>
	uint IConvertible.ToUInt32(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToUInt32(provider);

	/// <inheritdoc/>
	ulong IConvertible.ToUInt64(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToUInt64(provider);
}

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a AltaSoft.DomainPrimitives.Generator v1.0.0
//     Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

#nullable enable

using DomainPrimitives;
using System;
using System.Text.Json;
using System.Text.Json.Serialization;
using System.Globalization;
using System.Text.Json.Serialization.Metadata;
using AltaSoft.DomainPrimitives.Abstractions;

namespace DomainPrimitives.Converters;

/// <summary>
/// JsonConverter for <see cref = "MonthDate"/>
/// </summary>
public sealed class MonthDateJsonConverter : JsonConverter<MonthDate>
{
	/// <inheritdoc/>
	public override MonthDate Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
	{
		try
		{
			return JsonInternalConverters.Int32Converter.Read(ref reader, typeToConvert, options);
		}
		catch (InvalidDomainValueException ex)
		{
			throw new JsonException(ex.Message);
		}
	}

	/// <inheritdoc/>
	public override void Write(Utf8JsonWriter writer, MonthDate value, JsonSerializerOptions options)
	{
		JsonInternalConverters.Int32Converter.Write(writer, (int)value, options);
	}

	/// <inheritdoc/>
	public override MonthDate ReadAsPropertyName(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
	{
		try
		{
			return JsonInternalConverters.Int32Converter.ReadAsPropertyName(ref reader, typeToConvert, options);
		}
		catch (InvalidDomainValueException ex)
		{
			throw new JsonException(ex.Message);
		}
	}

	/// <inheritdoc/>
	public override void WriteAsPropertyName(Utf8JsonWriter writer, MonthDate value, JsonSerializerOptions options)
	{
		JsonInternalConverters.Int32Converter.WriteAsPropertyName(writer, (int)value, options);
	}
}

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a AltaSoft.DomainPrimitives.Generator v1.0.0
//     Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

#nullable enable

using DomainPrimitives;
using System;
using System.ComponentModel;
using System.Globalization;
using AltaSoft.DomainPrimitives.Abstractions;

namespace DomainPrimitives.Converters;

/// <summary>
/// TypeConverter for <see cref = "MonthDate"/>
/// </summary>
public sealed class MonthDateTypeConverter : Int32Converter
{
	/// <inheritdoc/>
	public override object? ConvertFrom(ITypeDescriptorContext? context, CultureInfo? culture, object value)
	{
		var result = base.ConvertFrom(context, culture, value);
		if (result is null)
			return null;
		try
		{
			return new MonthDate((int)result);
		}
		catch (InvalidDomainValueException ex)
		{
			throw new FormatException("Cannot parse MonthDate", ex);
		}
	}
}

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a AltaSoft.DomainPrimitives.Generator v1.0.0
//     Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

#nullable enable

using System;
using System.Numerics;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Text.Json.Serialization;
using DomainPrimitives.Converters;
using System.ComponentModel;

namespace DomainPrimitives;

[JsonConverter(typeof(YearDateJsonConverter))]
[TypeConverter(typeof(YearDateTypeConverter))]
[DebuggerDisplay("{_valueOrDefault}")]
public readonly partial record struct YearDate :
		IAdditionOperators<YearDate, YearDate, YearDate>,
		ISubtractionOperators<YearDate, YearDate, YearDate>,
		IMultiplyOperators<YearDate, YearDate, YearDate>,
		IDivisionOperators<YearDate, YearDate, YearDate>,
		IModulusOperators<YearDate, YearDate, YearDate>,
		IComparisonOperators<YearDate, YearDate, bool>,
		IComparable,
		IComparable<YearDate>,
		IParsable<YearDate>,
		IConvertible
{
	private int _valueOrDefault => _isInitialized ? _value : Default;
	[DebuggerBrowsable(DebuggerBrowsableState.Never)]
	private readonly int _value;
	[DebuggerBrowsable(DebuggerBrowsableState.Never)]
	private readonly bool _isInitialized;
	
	/// <summary>
	/// Initializes a new instance of the <see cref="YearDate"/> class by validating the specified <see cref="int"/> value using <see cref="Validate"/> static method.
	/// </summary>
	/// <param name="value">The value to be validated..</param>
	public YearDate(int value)
	{
			Validate(value);
			_value = value;
			_isInitialized = true;
	}
	
	[Obsolete("Domain primitive cannot be created using empty Ctor", true)]
	public YearDate() : this(Default)
	{
	}
	
	/// <summary>
	/// <summary>Implicit conversion from <see cref = "int"/> to <see cref = "YearDate"/></summary>
	/// </summary>
	public static implicit operator YearDate(int value) => new(value);

	/// <summary>
	/// <summary>Implicit conversion from <see cref = "int?"/> to <see cref = "YearDate?"/></summary>
	/// </summary>
	[return: NotNullIfNotNull(nameof(value))]
	public static implicit operator YearDate?(int? value) => value is null ? null : new(value.Value);

	/// <summary>
	/// <summary>Implicit conversion from <see cref = "YearDate"/> to <see cref = "int"/></summary>
	/// </summary>
	public static implicit operator int(YearDate value) => (int)value._valueOrDefault;

	/// <inheritdoc/>
	public static YearDate operator +(YearDate left, YearDate right) => new(left._valueOrDefault + right._valueOrDefault);

	/// <inheritdoc/>
	public static YearDate operator -(YearDate left, YearDate right) => new(left._valueOrDefault - right._valueOrDefault);

	/// <inheritdoc/>
	public static YearDate operator *(YearDate left, YearDate right) => new(left._valueOrDefault * right._valueOrDefault);

	/// <inheritdoc/>
	public static YearDate operator /(YearDate left, YearDate right) => new(left._valueOrDefault / right._valueOrDefault);

	/// <inheritdoc/>
	public static YearDate operator %(YearDate left, YearDate right) => new(left._valueOrDefault % right._valueOrDefault);

	/// <inheritdoc/>
	public int CompareTo(object? value)
	{
		if (value is null)
			return 1;

		if (value is YearDate c)
			return CompareTo(c);

		throw new ArgumentException("Object is not a YearDate", nameof(value));
	}

	/// <inheritdoc/>
	public int CompareTo(YearDate other) => _valueOrDefault.CompareTo(other._valueOrDefault);

	/// <inheritdoc/>
	public static bool operator <(YearDate left, YearDate right) => left._valueOrDefault < right._valueOrDefault;

	/// <inheritdoc/>
	public static bool operator <=(YearDate left, YearDate right) => left._valueOrDefault <= right._valueOrDefault;

	/// <inheritdoc/>
	public static bool operator >(YearDate left, YearDate right) => left._valueOrDefault > right._valueOrDefault;

	/// <inheritdoc/>
	public static bool operator >=(YearDate left, YearDate right) => left._valueOrDefault >= right._valueOrDefault;


	/// <inheritdoc/>
	public static YearDate Parse(string s, IFormatProvider? provider) => int.Parse(s, provider);

	/// <inheritdoc/>
	public static bool TryParse(string? s, IFormatProvider? provider, out YearDate result)
	{
		if (int.TryParse(s, provider, out var value))
		{
			result = new YearDate(value);
			return true;
		}
		result = default;
		return false;
	}


	/// <inheritdoc/>
	public override string ToString() => _valueOrDefault.ToString();

	/// <inheritdoc/>
	TypeCode IConvertible.GetTypeCode() => ((IConvertible)_valueOrDefault).GetTypeCode();

	/// <inheritdoc/>
	bool IConvertible.ToBoolean(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToBoolean(provider);

	/// <inheritdoc/>
	byte IConvertible.ToByte(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToByte(provider);

	/// <inheritdoc/>
	char IConvertible.ToChar(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToChar(provider);

	/// <inheritdoc/>
	DateTime IConvertible.ToDateTime(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToDateTime(provider);

	/// <inheritdoc/>
	decimal IConvertible.ToDecimal(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToDecimal(provider);

	/// <inheritdoc/>
	double IConvertible.ToDouble(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToDouble(provider);

	/// <inheritdoc/>
	short IConvertible.ToInt16(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToInt16(provider);

	/// <inheritdoc/>
	int IConvertible.ToInt32(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToInt32(provider);

	/// <inheritdoc/>
	long IConvertible.ToInt64(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToInt64(provider);

	/// <inheritdoc/>
	sbyte IConvertible.ToSByte(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToSByte(provider);

	/// <inheritdoc/>
	float IConvertible.ToSingle(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToSingle(provider);

	/// <inheritdoc/>
	string IConvertible.ToString(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToString(provider);

	/// <inheritdoc/>
	object IConvertible.ToType(Type conversionType, IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToType(conversionType, provider);

	/// <inheritdoc/>
	ushort IConvertible.ToUInt16(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToUInt16(provider);

	/// <inheritdoc/>
	uint IConvertible.ToUInt32(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToUInt32(provider);

	/// <inheritdoc/>
	ulong IConvertible.ToUInt64(IFormatProvider? provider) => ((IConvertible)_valueOrDefault).ToUInt64(provider);
}

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a AltaSoft.DomainPrimitives.Generator v1.0.0
//     Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

#nullable enable

using DomainPrimitives;
using System;
using System.Text.Json;
using System.Text.Json.Serialization;
using System.Globalization;
using System.Text.Json.Serialization.Metadata;
using AltaSoft.DomainPrimitives.Abstractions;

namespace DomainPrimitives.Converters;

/// <summary>
/// JsonConverter for <see cref = "YearDate"/>
/// </summary>
public sealed class YearDateJsonConverter : JsonConverter<YearDate>
{
	/// <inheritdoc/>
	public override YearDate Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
	{
		try
		{
			return JsonInternalConverters.Int32Converter.Read(ref reader, typeToConvert, options);
		}
		catch (InvalidDomainValueException ex)
		{
			throw new JsonException(ex.Message);
		}
	}

	/// <inheritdoc/>
	public override void Write(Utf8JsonWriter writer, YearDate value, JsonSerializerOptions options)
	{
		JsonInternalConverters.Int32Converter.Write(writer, (int)value, options);
	}

	/// <inheritdoc/>
	public override YearDate ReadAsPropertyName(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
	{
		try
		{
			return JsonInternalConverters.Int32Converter.ReadAsPropertyName(ref reader, typeToConvert, options);
		}
		catch (InvalidDomainValueException ex)
		{
			throw new JsonException(ex.Message);
		}
	}

	/// <inheritdoc/>
	public override void WriteAsPropertyName(Utf8JsonWriter writer, YearDate value, JsonSerializerOptions options)
	{
		JsonInternalConverters.Int32Converter.WriteAsPropertyName(writer, (int)value, options);
	}
}

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a AltaSoft.DomainPrimitives.Generator v1.0.0
//     Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

#nullable enable

using DomainPrimitives;
using System;
using System.ComponentModel;
using System.Globalization;
using AltaSoft.DomainPrimitives.Abstractions;

namespace DomainPrimitives.Converters;

/// <summary>
/// TypeConverter for <see cref = "YearDate"/>
/// </summary>
public sealed class YearDateTypeConverter : Int32Converter
{
	/// <inheritdoc/>
	public override object? ConvertFrom(ITypeDescriptorContext? context, CultureInfo? culture, object value)
	{
		var result = base.ConvertFrom(context, culture, value);
		if (result is null)
			return null;
		try
		{
			return new YearDate((int)result);
		}
		catch (InvalidDomainValueException ex)
		{
			throw new FormatException("Cannot parse YearDate", ex);
		}
	}
}

Code and pdf at

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

RSCG – HsuSgSync
 
 

Generate code for async to sync methods

This is how you can use HsuSgSync .

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="Hsu.Sg.Sync" Version="2023.412.21" OutputItemType="Analyzer" >
    </PackageReference>
  </ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>
</Project>

The code that you will use is

using HsuSgSync;

var p=new Person();
var result=await p.RunAsync();
Console.WriteLine(result);
result=p.Run();

using System.ComponentModel;
using Hsu.Sg.Sync;
namespace HsuSgSync;
[Sync]
internal partial class Person
{   
    public async Task<bool> RunAsync()
    {
        await Task.Delay(1000);
        return true;
    }
}

The code that is generated is

// <auto-generated/>

using System;

namespace Hsu.Sg.Sync
{
    /// <summary>
    /// The flag to generate async method to sync method.
    /// </summary>
    [AttributeUsage(
        System.AttributeTargets.Interface |
        System.AttributeTargets.Struct |
        System.AttributeTargets.Class,
        AllowMultiple = false,
        Inherited = false)]
    internal sealed class SyncAttribute : Attribute
    {
        /// <summary>
        ///     Only <c>interface</c> or <c>abstract</c> async methods are generated.
        /// </summary>
        public bool Definable { get; set; }
        
        /// <summary>
        /// The public async methods are generated.
        /// </summary>
        public bool Public { get; set; } = true;

        /// <summary>
        /// The internal async methods are generated.
        /// </summary>
        public bool Internal { get; set; } = true;

        /// <summary>
        /// The private async methods are generated.
        /// </summary>
        public bool Private { get; set; } = true;

        /// <summary>
        /// Only [SyncGen] async methods are generated.
        /// </summary>
        public bool Only { get; set; } = false;

        /// <summary>
        /// The suffix of sync method name when not end with Async.
        /// </summary>
        /// <remarks>default is `Sync`</remarks>
        public string Suffix { get; set; } = string.Empty;

        /// <summary>
        /// Whether generate attributes.
        /// </summary>
        public bool Attribute { get; set; } = false;

        /// <summary>
        /// To generate with attributes
        /// </summary>
        public string[] AttributeIncludes { get; set; } = null;

        /// <summary>
        /// To generate without attributes
        /// </summary>
        public string[] AttributeExcludes { get; set; } = null;

        public SyncAttribute()
        {
            Public = true;
            Internal = true;
            Private = true;
            Only = false;
            Suffix = string.Empty;
        }
    }

    [AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = false)]
    internal sealed class SyncGenAttribute : Attribute
    {
        /// <summary>
        /// Ignore to generate sync methods. 
        /// </summary>
        public bool Ignore { get; set; } = false;
        
        /// <summary>
        /// The specific name of sync method.
        /// </summary>
        public string Identifier { get; set; } = string.Empty;

        /// <summary>
        /// The suffix of sync method name when not end with Async.
        /// </summary>
        /// <remarks>default is `Sync`</remarks>
        public string Suffix { get; set; } = string.Empty;
    }
}

// <auto-generated/>

using System.Runtime.CompilerServices;
using System.Threading.Tasks;
using System;

namespace Hsu.Sg.Sync
{
    internal static partial class SyncHelper
    {
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static void Run(Task task)
        {
            Nito.AsyncEx.AsyncContext.Run(async () => await task);
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static T Run<T>(Task<T> task)
        {
            return Nito.AsyncEx.AsyncContext.Run(async () => await task);
        }
        
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static void Run(Func<Task> task)
        {
            Nito.AsyncEx.AsyncContext.Run(async () => await task());
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static T Run<T>(Func<Task<T>> task)
        {
            return Nito.AsyncEx.AsyncContext.Run(async () => await task());
        }
    }
}

// <auto-generated/>

using System.Runtime.CompilerServices;
using System.Threading.Tasks;
using System;

namespace Hsu.Sg.Sync
{
    internal static partial class SyncHelper
    {
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static void Run(ValueTask task)
        {
            Nito.AsyncEx.AsyncContext.Run(async () => await task);
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static T Run<T>(ValueTask<T> task)
        {
            return Nito.AsyncEx.AsyncContext.Run(async () => await task);
        }
        
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static void Run(Func<ValueTask> task)
        {
            Nito.AsyncEx.AsyncContext.Run(async () => await task());
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static T Run<T>(Func<ValueTask<T>> task)
        {
            return Nito.AsyncEx.AsyncContext.Run(async () => await task());
        }
    }
}

// <auto-generated/>
// Generated 1 sync methods by SyncGenerator
// ValueTaskSupported : True
// DefaultImplementationsOfInterfacesSupported : True
// Metadata { Only = False, Definable = False, Public = True, Internal = True, Private = True, Attribute = False  }

using System.ComponentModel;

namespace HsuSgSync;

internal partial class Person
{
    /// <inheritdoc cref="RunAsync()" />
    /// <remarks></remarks>
    public bool Run() 
    	=> Hsu.Sg.Sync.SyncHelper.Run(() => RunAsync());
}

Code and pdf at

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

RSCG – CopyCat
 
 

Implementation of the Decorator pattern in C# – only for not implemented methods

This is how you can use CopyCat .

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="Copycat" Version="0.2.0-beta.1" OutputItemType="Analyzer"   />
  </ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>
</Project>

The code that you will use is

using CCDemo;

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

namespace CCDemo;

internal interface ICoffee
{
    //for the moment does not work for properties in interface
    //string? Name { get; set; }
    Task<bool> Prepare();

    string[] GetIngredients();
}

namespace CCDemo;
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" };

}

using Copycat;

namespace CCDemo;
[Decorate]
internal partial class CoffeeWithLogging: ICoffee
{
    [Template]
    private string[] AddLogging(Func<string[]> action)
    {
        try
        {
            Console.WriteLine($"start logging {nameof(action)}  ");
            return action();
        }
        catch (Exception e)
        {
            Console.WriteLine($"exception  {nameof(action)} ");
            throw;
        }
        finally
        {
               Console.WriteLine($"end logging {nameof(action)} ");
        }
    }


    [Template]
    public async Task<bool> AddLogging(Func<Task<bool>> action)       
    {
        try
        {
            Console.WriteLine($"start logging {nameof(action)} ");
            return await action();
        }
        catch (Exception e)
        {
            Console.WriteLine($"exception  {nameof(action)} ");
            throw;
        }
        finally
        {
            Console.WriteLine($"end logging {nameof(action)} ");
        }
    }
}

The code that is generated is

// <auto-generated/>
using Copycat;

namespace CCDemo;
internal partial class CoffeeWithLogging
{
    private CCDemo.ICoffee _decorated;
    public CoffeeWithLogging(CCDemo.ICoffee decorated)
    {
        _decorated = decorated;
    }

    /// <see cref = "CoffeeWithLogging.AddLogging(Func{Task{bool}})"/>
    public async //for the moment does not work for properties in interface
    //string? Name { get; set; }
    Task<bool> Prepare()
    {
        try
        {
            Console.WriteLine($"start logging {nameof(Prepare)} ");
            return await _decorated.Prepare();
        }
        catch (Exception e)
        {
            Console.WriteLine($"exception  {nameof(Prepare)} ");
            throw;
        }
        finally
        {
            Console.WriteLine($"end logging {nameof(Prepare)} ");
        }
    }

    /// <see cref = "CoffeeWithLogging.AddLogging(Func{string[]})"/>
    public string[] GetIngredients()
    {
        try
        {
            Console.WriteLine($"start logging {nameof(GetIngredients)}  ");
            return _decorated.GetIngredients();
        }
        catch (Exception e)
        {
            Console.WriteLine($"exception  {nameof(GetIngredients)} ");
            throw;
        }
        finally
        {
            Console.WriteLine($"end logging {nameof(GetIngredients)} ");
        }
    }
}

Code and pdf at

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

RSCG – AspectGenerator
 
 

AOP for methods in the same project. Uses interceptors

This is how you can use AspectGenerator .

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="AspectGenerator" Version="0.0.9-preview" OutputItemType="Analyzer"  />
  </ItemGroup>
<PropertyGroup>
    
    <InterceptorsPreviewNamespaces>$(InterceptorsPreviewNamespaces);AspectGenerator</InterceptorsPreviewNamespaces>

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

The code that you will use is

using AG;

var p=new Person { FirstName="Ignat", LastName="Andrei" };
var x= p.FullName();
Console.WriteLine(x);   

namespace AG;

internal class Person
{
    public string? FirstName { get; set; }
    public string? LastName { get; set; }
    [Metrics]
    public string FullName()
    {
        return $"{FirstName} {LastName}";
    }
}

using System.Diagnostics;
using AspectGenerator;
namespace AG;

[Aspect(
       // Specify the name of the method used in the 'using' statement
       // that returns an IDisposable object.
       OnUsing = nameof(OnUsing)
       )]
[AttributeUsage(AttributeTargets.Method, Inherited = false, AllowMultiple = false)]
sealed class MetricsAttribute : Attribute
{
    //static readonly ActivitySource _activitySource = new("Sample.Aspect");

    public static Activity? OnUsing(InterceptInfo info)
    {
        Console.WriteLine($"Entering {info.MemberInfo.Name}");
        return null;
        //var data=_activitySource.StartActivity(info.MemberInfo.Name);
        //return data;
    }
}

The code that is generated is

// <auto-generated/>
#pragma warning disable
#nullable enable

using System;

#if AG_GENERATE_API || !AG_NOT_GENERATE_API

namespace AspectGenerator
{
	/// <summary>
	/// <para>Defines an aspect.</para>
	/// <para>Create a new attribute decorated with this attribute to define an aspect.</para>
	/// </summary>
	[AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
#if AG_PUBLIC_API
	public
#endif
	sealed class AspectAttribute : Attribute
	{
		public string?   OnInit            { get; set; }
		public string?   OnUsing           { get; set; }
		public string?   OnUsingAsync      { get; set; }
		public string?   OnBeforeCall      { get; set; }
		public string?   OnBeforeCallAsync { get; set; }
		public string?   OnCall            { get; set; }
		public string?   OnAfterCall       { get; set; }
		public string?   OnAfterCallAsync  { get; set; }
		public string?   OnCatch           { get; set; }
		public string?   OnCatchAsync      { get; set; }
		public string?   OnFinally         { get; set; }
		public string?   OnFinallyAsync    { get; set; }
		public string[]? InterceptMethods  { get; set; }
		public bool      UseInterceptType  { get; set; }
		public bool      PassArguments     { get; set; }
		public bool      UseInterceptData  { get; set; }
	}

#if AG_PUBLIC_API
	public
#endif
	enum InterceptType
	{
		OnInit,
		OnUsing,
		OnBeforeCall,
		OnAfterCall,
		OnCatch,
		OnFinally
	}

#if AG_PUBLIC_API
	public
#endif
	enum InterceptResult
	{
		Continue,
		Return,
		ReThrow     = Continue,
		IgnoreThrow = Return
	}

#if AG_PUBLIC_API
	public
#endif
	struct Void
	{
	}

#if AG_PUBLIC_API
	public
#endif
	partial class InterceptInfo
	{
		public object?         Tag;
		public InterceptType   InterceptType;
		public InterceptResult InterceptResult;
		public Exception?      Exception;

		public InterceptInfo?                                        PreviousInfo;
		public System.Reflection.MemberInfo                          MemberInfo;
		public object?[]?                                            MethodArguments;
		public Type                                                  AspectType;
		public System.Collections.Generic.Dictionary<string,object?> AspectArguments;
	}

#if AG_PUBLIC_API
	public
#endif
	partial class InterceptInfo<T> : InterceptInfo
	{
		public T ReturnValue;
	}

#if AG_PUBLIC_API
	public
#endif
	partial struct InterceptData<T>
	{
		public object?         Tag;
		public InterceptType   InterceptType;
		public InterceptResult InterceptResult;
		public Exception?      Exception;

		public InterceptInfo<T>?                                     PreviousInfo;
		public System.Reflection.MemberInfo                          MemberInfo;
		public object?[]?                                            MethodArguments;
		public Type                                                  AspectType;
		public System.Collections.Generic.Dictionary<string,object?> AspectArguments;

		public T ReturnValue;
	}
}

#endif

#if AG_GENERATE_InterceptsLocationAttribute || !AG_NOT_GENERATE_InterceptsLocationAttribute

namespace System.Runtime.CompilerServices
{
	[AttributeUsage(AttributeTargets.Method, AllowMultiple = true)]
	sealed class InterceptsLocationAttribute(string filePath, int line, int character) : Attribute
	{
	}
}

#endif

// <auto-generated/>
#pragma warning disable
#nullable enable

using System;

using SR  = System.Reflection;
using SLE = System.Linq.Expressions;
using SCG = System.Collections.Generic;

namespace AspectGenerator
{
	using AspectGenerator = AspectGenerator;

	static partial class Interceptors
	{
		static SR.MethodInfo GetMethodInfo(SLE.Expression expr)
		{
			return expr switch
			{
				SLE.MethodCallExpression mc => mc.Method,
				_                           => throw new InvalidOperationException()
			};
		}

		static SR.MethodInfo MethodOf<T>(SLE.Expression<Func<T>> func) => GetMethodInfo(func.Body);
		static SR.MethodInfo MethodOf   (SLE.Expression<Action>  func) => GetMethodInfo(func.Body);

		static SR. MemberInfo                 FullName_Interceptor_MemberInfo        = MethodOf(() => default(AG.Person).FullName());
		static SCG.Dictionary<string,object?> FullName_Interceptor_AspectArguments_0 = new()
		{
		};
		//
		/// <summary>
		/// Intercepts AG.Person.FullName().
		/// </summary>
		//
		// Intercepts p.FullName().
		[System.Runtime.CompilerServices.InterceptsLocation(@"D:\gth\RSCG_Examples\v2\rscg_examples\AspectGenerator\src\AG\Program.cs", line: 4, character: 10)]
		//
		[System.Runtime.CompilerServices.CompilerGenerated]
		//[System.Diagnostics.DebuggerStepThrough]
		public static string FullName_Interceptor(this AG.Person __this__)
		{
			// AG.MetricsAttribute
			//
			var __info__0 = new AspectGenerator.InterceptInfo<string>
			{
				MemberInfo      = FullName_Interceptor_MemberInfo,
				AspectType      = typeof(AG.MetricsAttribute),
				AspectArguments = FullName_Interceptor_AspectArguments_0,
			};

			using (AG.MetricsAttribute.OnUsing(__info__0))
			{
				__info__0.ReturnValue = __this__.FullName();
			}

			return __info__0.ReturnValue;
		}
	}
}

Code and pdf at

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

RSCG – mocklis
 
 

Generating mocks from classes for unit tests

This is how you can use mocklis .

The code that you start with is

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

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

    <IsPackable>false</IsPackable>
    <IsTestProject>true</IsTestProject>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0-preview-23577-04" />
    <PackageReference Include="Mocklis" Version="1.4.0-alpha.2" />
    <PackageReference Include="MSTest.TestAdapter" Version="3.2.0-preview.23623.1" />
    <PackageReference Include="MSTest.TestFramework" Version="3.2.0-preview.23623.1" />
    <PackageReference Include="coverlet.collector" Version="6.0.0">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>
  </ItemGroup>

  <ItemGroup>
    <ProjectReference Include="..\MockLisClock\MockLisClock.csproj" />
  </ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>

</Project>

The code that you will use is

namespace TestClock;

[MocklisClass]
public partial class TestMock : IMyClock
{

}

using Mocklis;

namespace TestClock;

[TestClass]
public class TestClock
{
    [TestMethod]
    public void TestMyClock()
    {
        var mockSetup = new TestMock();
        mockSetup.GetNow.Return(DateTime.Now.AddYears(-1));

        // When testing the mock like this you need to cast to the interface.
        // This is different from e.g. Moq where the mocked instance and the 'programming interface' are different things.
        // With Mocklis they are the same. The 99% case is where the mock is passed to another constructor as a dependency,
        // in which case there's an implicit cast to the interface.
        var mock = (IMyClock)mockSetup;
        var data = mock.GetNow();
        Assert.AreEqual(DateTime.Now.Year - 1, data.Year);

    }
}

global using Microsoft.VisualStudio.TestTools.UnitTesting;
global using MockTest;
global using Mocklis.Core;

The code that is generated is

// <auto-generated />

#nullable enable

namespace TestClock
{
    partial class TestMock
    {
        public global::Mocklis.Core.FuncMethodMock<global::System.DateTime> GetNow { get; }

        global::System.DateTime global::MockTest.IMyClock.GetNow() => GetNow.Call();

        public global::Mocklis.Core.FuncMethodMock<global::System.DateTime> GetUtcNow { get; }

        global::System.DateTime global::MockTest.IMyClock.GetUtcNow() => GetUtcNow.Call();

        public TestMock() : base()
        {
            this.GetNow = new global::Mocklis.Core.FuncMethodMock<global::System.DateTime>(this, "TestMock", "IMyClock", "GetNow", "GetNow", global::Mocklis.Core.Strictness.Lenient);
            this.GetUtcNow = new global::Mocklis.Core.FuncMethodMock<global::System.DateTime>(this, "TestMock", "IMyClock", "GetUtcNow", "GetUtcNow", global::Mocklis.Core.Strictness.Lenient);
        }
    }
}

Code and pdf at

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

RSCG – RSCG_UtilityTypes
 
 

Add omit and pick to selectively generate types from existing types

This is how you can use RSCG_UtilityTypes .

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="RSCG_UtilityTypes" Version="2023.1223.1230" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
	  <PackageReference Include="RSCG_UtilityTypesCommon" Version="2023.1223.1230" />
  </ItemGroup>
	<PropertyGroup>
		<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
		<CompilerGeneratedFilesOutputPath>$(BaseIntermediateOutputPath)\GX</CompilerGeneratedFilesOutputPath>
	</PropertyGroup>
</Project>

The code that you will use is

using UtilDemo;

var p=new PersonFull();
p.FirstName="Andrei";
p.LastName="Ignat";
Person1 p1=(Person1)p ;
Person2 p2=(Person2)p ;
Console.WriteLine(p1.FirstName);
Console.WriteLine(p2.LastName);

using RSCG_UtilityTypesCommon;

namespace UtilDemo;
[Pick("Person1",nameof(FirstName),nameof(LastName))]
[Omit("Person2", nameof(Salary))]
public class PersonFull
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public int Salary { get; set; }

}

The code that is generated is

namespace UtilDemo
{
partial class Person1
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }

public static explicit operator Person1(PersonFull data )
    {
        var ret= new Person1 ();
        ret.FirstName = data.FirstName;
ret.LastName = data.LastName;
        return ret;
    }



public static explicit operator PersonFull(Person1 data )
    {
        var ret= new PersonFull ();
        ret.FirstName = data.FirstName;
ret.LastName = data.LastName;
        return ret;
    }


}
}

namespace UtilDemo
{
partial class Person2
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }

public static explicit operator Person2(PersonFull data )
    {
        var ret= new Person2 ();
        ret.FirstName = data.FirstName;
ret.LastName = data.LastName;
        return ret;
    }



public static explicit operator PersonFull(Person2 data )
    {
        var ret= new PersonFull ();
        ret.FirstName = data.FirstName;
ret.LastName = data.LastName;
        return ret;
    }


}
}

Code and pdf at

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

RSCG – Ling.Audit
 
 

Generating audit data from class implementation of interfaces

This is how you can use Ling.Audit .

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="Ling.Audit" Version="1.1.0" />
  </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 LingDemo;

Console.WriteLine("Hello, World!");
var p = new Person();
await Task.Delay(2000);
p.FirstName = "Andrei";
p.LastName = "Ignat";
Console.WriteLine(p.CreationTime);
Console.WriteLine(p.LastModificationTime);

using Ling.Audit;

namespace LingDemo;
partial class Person :IFullAudited<Guid>
{
    public int ID { get; set; }
    public string FirstName { get; set; }= string.Empty;
    public string LastName { get; set; } = string.Empty;
}

The code that is generated is

// <auto-generated/>

#nullable enable annotations
#nullable disable warnings

namespace LingDemo
{
    partial class Person
    {
        /// <summary>
        /// Gets or sets the creation time of this entity.
        /// </summary>
        public virtual global::System.DateTimeOffset CreationTime { get; set; }
    
        /// <summary>
        /// Gets or sets the creator Id of this entity.
        /// </summary>
        public virtual global::System.Nullable<global::System.Guid> CreatorId { get; set; }
    
        /// <summary>
        /// Gets or sets the last modification time of this entity.
        /// </summary>
        public virtual global::System.Nullable<global::System.DateTimeOffset> LastModificationTime { get; set; }
    
        /// <summary>
        /// Gets or sets the last modifier Id of this entity.
        /// </summary>
        public virtual global::System.Nullable<global::System.Guid> LastModifierId { get; set; }
    
        /// <summary>
        /// Gets or sets whether this entity is soft deleted.
        /// </summary>
        public virtual global::System.Boolean IsDeleted { get; set; }
    
        /// <summary>
        /// Gets or sets the deletion time of this entity.
        /// </summary>
        public virtual global::System.Nullable<global::System.DateTimeOffset> DeletionTime { get; set; }
    
        /// <summary>
        /// Get or set the deleter Id of this entity.
        /// </summary>
        public virtual global::System.Nullable<global::System.Guid> DeleterId { get; set; }
    }
}

Code and pdf at

https://ignatandrei.github.io/RSCG_Examples/v2/docs/Ling.Audit