Support for Record Struct

[Mark Wainwright]

[Equatable]
public partial record struct MyStruct(int Data);

Generates

partial record MyStruct
{
    /// <inheritdoc/>
    [GeneratedCode("Generator.Equals", "1.0.0.0")]
    public bool Equals(MyStruct? other)
    {
        return
            base.Equals(other)
         && EqualityComparer<Int32>.Default.Equals(Data!, other.Data!)
            ;
    }
        
    /// <inheritdoc/>
    [GeneratedCode("Generator.Equals", "1.0.0.0")]
    public override int GetHashCode()
    {
        var hashCode = new HashCode();
            
        hashCode.Add(base.GetHashCode());
        hashCode.Add(
            Data!,
            EqualityComparer<Int32>.Default);
            
        return hashCode.ToHashCode();
    }
}

This is correct except it should say partial record struct MyStruct and the Equals method should be

/// <inheritdoc />
    [GeneratedCode("Generator.Equals", "1.0.0.0")]
    public bool Equals(MyStruct? other)
    {
        return
            other.HasValue
         && EqualityComparer<Int32>.Default.Equals(Data, other.Value.Data)
            ;
    }

also the GetHashCode method does not need to do hashCode.Add(base.GetHashCode());

I am willing to have a go at this myself.

[Diego Frata]

I’m happy for you to have a go at it, however I’m not sure whether the current version of the Roslyn libraries being used support record structs! If we need to update them, then we will need to investigate what’s the impact — we might end up with either multi-targeting or a breaking change.

Let me know how you get along with it.

[Diego Frata]

This is now available in 2.6.0