static public Func <Object, Object> GetFunc(string assemblyFile, string typeName, string methodName)
{
Console.WriteLine($"CS::GetFunc: AssemblyFile: {assemblyFile} | TypeName: {typeName} | MethodName: {methodName} ");
try {
var assembly = Assembly.Load(assemblyFile);
var wrap = ClrFuncReflectionWrap.Create(assembly, typeName, methodName);
Console.WriteLine("CS::GetFunc::End");
return(new Func <Object, Object>(wrap.Call));
}
catch (Exception exc)
{
Console.WriteLine($"CS::GetFunc::Exception - {exc.Message}");
throw exc;
}
}
public static ClrFuncReflectionWrap Create(Assembly assembly, String typeName, String methodName)
{
Console.WriteLine("CS::ClrFuncReflectionWrap::Create");
Type startupType = assembly.GetType(typeName);
if (startupType == null)
{
throw new TypeLoadException("Could not load type '" + typeName + "'");
}
ClrFuncReflectionWrap wrap = new ClrFuncReflectionWrap();
wrap.instance = System.Activator.CreateInstance(startupType);
wrap.invokeMethod = startupType.GetMethod(methodName, BindingFlags.Instance | BindingFlags.Public);
if (wrap.invokeMethod == null)
{
throw new System.InvalidOperationException(
"Unable to access the CLR method to wrap through reflection. Make sure it is a public instance method.");
}
return(wrap);
}
