Program.cs

using System.Reflection;
using DouglasDwyer.CasCore;

namespace CasCoreTesting
{
	internal class Program
	{
		static void Main(string[] args)
		{
			string filePath = Path.GetFullPath("PredicateStart.dll");


			var policy = new CasPolicyBuilder()   // Create a new, empty whitelist.
			.WithDefaultSandbox()   // Add all system types that are on the default whitelist
			.Allow(new TypeBinding(typeof(char), DouglasDwyer.CasCore.Accessibility.Public))
			.Allow(new TypeBinding(typeof(System.Boolean), DouglasDwyer.CasCore.Accessibility.Public)
				.WithMethod(nameof(ToString), [], DouglasDwyer.CasCore.Accessibility.Public))
			.Build();

			var loadContext = new CasAssemblyLoader(policy);

			var sandboxed = loadContext.LoadFromAssemblyPath(filePath);

			Type? type= sandboxed.GetType("CSharpUnitProcessor.CSharpExpression");

			if (type == null)
				return;

			var property = type.GetProperty("Result");
			if (property == null)
				return;

			var ctor = type.GetConstructor(Type.EmptyTypes);
			if (ctor == null)
				return;

			object obj = ctor.Invoke(null);
			if (obj == null)
				return;

			var value = property.GetValue(obj)?.ToString();
			if (value == null)
				return;

			Console.WriteLine(value);
		}


	}
}



//namespace CSharpUnitProcessor
//{
//	public class CSharpExpression
//	{
//		public string Result => char.IsDigit('C').ToString();
//	}
//}