/// <summary>
/// Gets a creation method which instantiates the <see cref="IExpressionHost"/> instance for a given model.
/// </summary>
/// <returns>The expression host creator.</returns>
/// <param name="assembly">Assembly.</param>
/// <param name="model">Model.</param>
private Func<IExpressionHost> GetExpressionHostCreator(Assembly assembly, ExpressionModel model)
{
if(assembly == null)
{
throw new ArgumentNullException(nameof(assembly));
}
var type = assembly.GetType(String.Concat(model.Namespace, ".", model.GetClassName()));
if(type == null)
{
throw new CSharpExpressionExceptionException(Resources.ExceptionMessages.ExpressionTypeMustExist) {
ExpressionText = model.ExpressionText
};
}
return () => (IExpressionHost) Activator.CreateInstance(type);
}
