Typed dynamic / dynamic type fields

[CREAsTIVE]

Lets create a simple Vector class:

public class Vector<T> : DynamicObject where T : INumber<T>
{
	public T[] values;
	public Vector(params T[] values) => this.values = values;

	public T Len() => values.Aggregate(T.Zero, (T acc, T v) => acc + v);

	// ...

	static string fieldNames = "xyzw";
	public override bool TryGetMember(GetMemberBinder binder, out object? result)
	{
		if (base.TryGetMember(binder, out result)) return true;

		Vector<T> newVec = new(new T[binder.Name.Length]);
		for (int i = 0; i < binder.Name.Length; i++)
			newVec.values[i] = values[fieldNames.IndexOf(binder.Name[i])];
		
		result = newVec;
		return true;
	}

	public override string ToString() => $"({string.Join(", ", values)})";
}

It uses dynamic for a fast way to generate vectors like on glsl

dynamic v = new Vector<int>(1, 2, 3);
Console.WriteLine(v.xyxy); // (1, 2, 1, 2)
Console.WriteLine(v.xyxy.Len()); 6

The problem is that calling standard methods is accompanied by calling a wrapper. I think this situation needs to be corrected for optimizations and syntax highlighting

How it works now:

dynamic v = new Vector<int>(1, 2, 3);
v.Len(); // Vector<int>.TryGetMember("Len", new object)()
v.xyxz; // Vector<int>.TryGetMember("xyxz", new object)

I wanna see syntax like this: (typed dynamic)

dynamic<Vector<int>> v = new Vector<int>(1, 2, 3);
v.Len(); // Vector<int>.Len
v.xyxz; // Vector<int>.TryGetMember("xyxz", new object)

Or maybe just convert non-existent method calls to TryGetValue for types that implement DynamicObject: (dynamic type fields)

Vector<int> v = new Vector<int>(1, 2, 3);
v.Len(); // Normal Vector<int>.Len
v.xyxz; // Redirect call to TryGetMember

[HaloFour]

See: #1678 #1116 #969 #284