Supernova.Enum.Generators

The best Source Generator for working with enums in C#

A C# source generator to create an enumeration class from an enum type. With this package, you can work on enums very, very fast without using reflection.

Package - Supernova.Enum.Generators

Add the package to your application using

dotnet add package Supernova.Enum.Generators

Adding the package will automatically add a marker attribute, [EnumGenerator], to your project.

To use the generator, add the [EnumGenerator] attribute to an enum. For example:

[EnumGenerator]
public enum UserTypeTest
{
    [Display(Name = "مرد", Description = "Descمرد")] Men = 3,

    [Display(Name = "زن", Description = "Descزن")] Women = 4,

    //[Display(Name = "نامشخص")]
    None
}

This will generate a class called EnumNameEnumExtensions (UserTypeTest + EnumExtensions), which contains a number of helper methods. For example:

    /// <summary>
    /// Provides extension methods for operations related to the <see cref="global::UnitTests.UserTypeTest" /> enumeration.
    /// </summary>    
    [GeneratedCodeAttribute("Supernova.Enum.Generators", null)]
    public static class UserTypeTestEnumExtensions
    {
        /// <summary>
        /// Provides a dictionary that maps <see cref="global::UnitTests.UserTypeTest" /> values to their corresponding display names.
        /// </summary>
        public static readonly ImmutableDictionary<UnitTests.UserTypeTest, string> DisplayNamesDictionary = new Dictionary<UnitTests.UserTypeTest, string>
        {
                {UnitTests.UserTypeTest.Men, "مرد"},
                {UnitTests.UserTypeTest.Women, "زن"},
                {UnitTests.UserTypeTest.None, "None"},

        }.ToImmutableDictionary();

        /// <summary>
        /// Provides a dictionary that maps <see cref="global::UnitTests.UserTypeTest" /> values to their corresponding descriptions.
        /// </summary>
        public static readonly ImmutableDictionary<UnitTests.UserTypeTest, string> DisplayDescriptionsDictionary = new Dictionary<UnitTests.UserTypeTest, string>
        {
                {UnitTests.UserTypeTest.Men, "Descمرد"},
                {UnitTests.UserTypeTest.Women, "Descزن"},
                {UnitTests.UserTypeTest.None, "None"},

        }.ToImmutableDictionary();

        /// <summary>
        /// Converts the <see cref="global::UnitTests.UserTypeTest" /> enumeration value to its string representation.
        /// </summary>
        /// <param name="states">The <see cref="global::UnitTests.UserTypeTest" /> enumeration value.</param>
        /// <param name="defaultValue">The default value to return if the enumeration value is not recognized.</param>
        /// <returns>The string representation of the <see cref="global::UnitTests.UserTypeTest" /> value.</returns>
        public static string ToStringFast(this UnitTests.UserTypeTest states, string defaultValue = null)
        {
            return states switch
            {
                UnitTests.UserTypeTest.Men => nameof(UnitTests.UserTypeTest.Men),
                UnitTests.UserTypeTest.Women => nameof(UnitTests.UserTypeTest.Women),
                UnitTests.UserTypeTest.None => nameof(UnitTests.UserTypeTest.None),
                _ => defaultValue ?? throw new ArgumentOutOfRangeException(nameof(states), states, null)
            };
        }

        /// <summary>
        /// Checks if the specified <see cref="global::UnitTests.UserTypeTest" /> value is defined.
        /// </summary>
        /// <param name="states">The <see cref="global::UnitTests.UserTypeTest" /> value to check.</param>
        /// <returns>True if the <see cref="global::UnitTests.UserTypeTest" /> value is defined; otherwise, false.</returns>
        public static bool IsDefinedFast(UnitTests.UserTypeTest states)
        {
            return states switch
            {
                UnitTests.UserTypeTest.Men => true,
                UnitTests.UserTypeTest.Women => true,
                UnitTests.UserTypeTest.None => true,
                _ => false
            };
        }

        /// <summary>
        /// Checks if the specified string represents a defined <see cref="global::UnitTests.UserTypeTest" /> value.
        /// </summary>
        /// <param name="states">The string representing a <see cref="global::UnitTests.UserTypeTest" /> value.</param>
        /// <returns>True if the string represents a defined <see cref="global::UnitTests.UserTypeTest" /> value; otherwise, false.</returns>
        public static bool IsDefinedFast(string states)
        {
            return states switch
            {
                nameof(UnitTests.UserTypeTest.Men) => true,
                nameof(UnitTests.UserTypeTest.Women) => true,
                nameof(UnitTests.UserTypeTest.None) => true,
                _ => false
            };
        }

        /// <summary>
        /// Converts the <see cref="global::UnitTests.UserTypeTest" /> enumeration value to its display string.
        /// </summary>
        /// <param name="states">The <see cref="global::UnitTests.UserTypeTest" /> enumeration value.</param>
        /// <param name="defaultValue">The default value to return if the enumeration value is not recognized.</param>
        /// <returns>The display string of the <see cref="global::UnitTests.UserTypeTest" /> value.</returns>
        public static string ToDisplayFast(this UnitTests.UserTypeTest states, string defaultValue = null)
        {
            return states switch
            {
                UnitTests.UserTypeTest.Men => "مرد",
                UnitTests.UserTypeTest.Women => "زن",
                UnitTests.UserTypeTest.None => "None",
                _ => defaultValue ?? throw new ArgumentOutOfRangeException(nameof(states), states, null)
            };
        }

        /// <summary>
        /// Gets the description of the <see cref="global::UnitTests.UserTypeTest" /> enumeration value.
        /// </summary>
        /// <param name="states">The <see cref="global::UnitTests.UserTypeTest" /> enumeration value.</param>
        /// <param name="defaultValue">The default value to return if the enumeration value is not recognized.</param>
        /// <returns>The description of the <see cref="global::UnitTests.UserTypeTest" /> value.</returns>
        public static string ToDescriptionFast(this UnitTests.UserTypeTest states, string defaultValue = null)
        {
            return states switch
            {
                UnitTests.UserTypeTest.Men => "Descمرد",
                UnitTests.UserTypeTest.Women => "Descزن",
                UnitTests.UserTypeTest.None => "None",
                _ => defaultValue ?? throw new ArgumentOutOfRangeException(nameof(states), states, null)
            };
        }

        /// <summary>
        /// Retrieves an array of all <see cref="global::UnitTests.UserTypeTest" /> enumeration values.
        /// </summary>
        /// <returns>An array containing all <see cref="global::UnitTests.UserTypeTest" /> enumeration values.</returns>
        public static UnitTests.UserTypeTest[] GetValuesFast()
        {
            return new[]
            {
                UnitTests.UserTypeTest.Men,
                UnitTests.UserTypeTest.Women,
                UnitTests.UserTypeTest.None,
            };
        }

        /// <summary>
        /// Retrieves an array of strings containing the names of all <see cref="global::UnitTests.UserTypeTest" /> enumeration values.
        /// </summary>
        /// <returns>An array of strings containing the names of all <see cref="global::UnitTests.UserTypeTest" /> enumeration values.</returns>
        public static string[] GetNamesFast()
        {
            return new[]
            {
                nameof(UnitTests.UserTypeTest.Men),
                nameof(UnitTests.UserTypeTest.Women),
                nameof(UnitTests.UserTypeTest.None),
            };
        }

        /// <summary>
        /// Gets the length of the <see cref="global::UnitTests.UserTypeTest" /> enumeration.
        /// </summary>
        /// <returns>The length of the <see cref="global::UnitTests.UserTypeTest" /> enumeration.</returns>
        public static int GetLengthFast()
        {
            return 3;

        }

        /// <summary>
        /// Try parse a string to <see cref="global::UnitTests.UserTypeTest" /> value.
        /// </summary>
        /// <param name="states">The string representing a <see cref="global::UnitTests.UserTypeTest" /> value.</param>
        /// <param name="result">The enum <see cref="global::UnitTests.UserTypeTest" /> parse result.</param>
        /// <returns>True if the string is parsed successfully; otherwise, false.</returns>
        public static bool TryParseFast(string states, out UnitTests.UserTypeTest result)
        {
            switch (states)
            {
                case "Men": 
                {
                    result = UnitTests.UserTypeTest.Men;
                    return true;
                }
                case "Women": 
                {
                    result = UnitTests.UserTypeTest.Women;
                    return true;
                }
                case "None": 
                {
                    result = UnitTests.UserTypeTest.None;
                    return true;
                }
                default: {
                    result = default;
                    return false;
                }
            }
        }
    }

You do not see this file inside the project. But you can use it.

Usage

var stringEnum = UserTypeTest.Men.ToStringFast(); //Men;

var isDefined = UserTypeTestEnumExtensions.IsDefinedFast(UserType.Men); //true;

var displayEnum = UserTypeTest.Men.ToDisplayFast(); //مرد

var descriptionEnum = UserTypeTest.Men.ToDescriptionFast(); //Descمرد

var names = UserTypeTestEnumExtensions.GetNamesFast(); //string[]

var values = UserTypeTestEnumExtensions.GetValuesFast(); //UserType[]

var length = UserTypeTestEnumExtensions.GetLengthFast(); //3

var menString = "Men";
var result = UserTypeTestEnumExtensions.TryParseFast(menString, out var enumValue);

If you had trouble using UserTypeTestEnumExtensions and the IDE did not recognize it. This is an IDE problem and you need to restart the IDE once.

Benchmark

Contributing

Create an issue if you find a BUG or have a Suggestion or Question. If you want to develop this project :

1. Fork it!
2. Create your feature branch: git checkout -b my-new-feature
3. Commit your changes: git commit -am 'Add some feature'
4. Push to the branch: git push origin my-new-feature
5. Submit a pull request

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License

Supernova.Enum.Generators is Copyright © 2022 Mohsen Rajabi under the MIT License.