FastEnum.Extensions.Generator 1.0.0-preview.3

FastEnumToString

Source Generator for enums to create extension methods with basic functionality.

Usage

Use the [Extensions] on your enums, so the source generator will genrate the extensions for those enums:

Feature

• MembersCount (field)
• GetValues *
• GetUnderlyingValues *
• GetNames *
• HasFlag *
• IsDefined *
• FastToString *
• FastToString with format option *
• GetDescription
• TryParse (string/System.ReadOnlySpan<char>)
• TryParseIgnoreCase (string/System.ReadOnlySpan<char>)

Note: I'm trying to make the generated code behave the same as the .NET implementation. Yet I tested most of the scenarios for the features (methods) marked with an asterisc (*) in the Features list. If you find any differences please let me know.

Limitations

• Only actively supported .NET versions are supperted. See: supported version list
• .NET Framwork is not supported
• Generation extensions for enums nested in classes with generic type parameters are not supported.

Example

using FastEnum;

namespace ToStringExample;

public class NestingClass
{
    [Extensions]
    public enum NestedInClassEnum
    {
        None
    }
}

[Extensions]
public enum Color : System.Byte
{
    Red,
    Green,
    Blue,
}

[Extensions, Flags]
public enum Options
{
    None = 0,
    ToString = 1,
    Parse = 2,
    HasFlag = 4,
}