DictionarySlimWtf

DictionarySlimWtf.cs

private DictionarySlim<TypeVal, string> _dict;

public DictionarySlim<TypeVal, string> DictSlim()
{
    var dict = new DictionarySlim<TypeVal, string>();

    foreach (var key in _keys.Take(Count))
        dict.GetOrAddValueRef(key) = "a";

    dict.GetOrAddValueRef(typeof(ImHashMapBenchmarks)) = "!";

    return dict;
}

public struct TypeVal : IEquatable<TypeVal>
{
    public static implicit operator TypeVal(Type t) => new TypeVal(t);

    public readonly Type Type;
    public TypeVal(Type type) => Type = type;
    public bool Equals(TypeVal other) => Type == other.Type;
    public override bool Equals(object obj) => !ReferenceEquals(null, obj) && obj is TypeVal other && Equals(other);
    public override int GetHashCode() => Type.GetHashCode();
}