public static object FindObject(Expression expression)
{
var visitor = new ObjectFinder();
visitor.Visit(expression);
return(visitor._obj);
}
internal static object GetValue([NotNull] this LambdaExpression lambdaExpression)
{
if (lambdaExpression == null)
{
throw new ArgumentNullException(nameof(lambdaExpression));
}
var memberExpression = lambdaExpression.MemberExpression();
var obj = ObjectFinder.FindObject(lambdaExpression);
switch (memberExpression.Member.MemberType)
{
case MemberTypes.Property:
var property = (PropertyInfo)memberExpression.Member;
return(property.GetValue(obj));
case MemberTypes.Field:
return(((FieldInfo)memberExpression.Member).GetValue(obj));
default:
throw new ArgumentException($"Member must be either a {nameof(MemberTypes.Property)} or a {nameof(MemberTypes.Field)}.");
}
}
