/// <summary>
/// Visits the <see cref="FieldInfoElement"/> and collects the value for this
/// field from the <see cref="Target"/> instance.
/// </summary>
/// <param name="fieldInfoElement">
/// The <see cref="FieldInfoElement"/> being visited.
/// </param>
/// <returns>
/// A <see cref="IReflectionVisitor{T}" /> instance which can be used
/// to continue the visiting process with potentially updated
/// observations.
/// </returns>
public override IReflectionVisitor <IEnumerable <object> > Visit(
FieldInfoElement fieldInfoElement)
{
if (fieldInfoElement == null)
{
throw new ArgumentNullException("fieldInfoElement");
}
var value = fieldInfoElement.FieldInfo.GetValue(this.target);
return(new ValueCollectingVisitor(
this.target,
this.values.Concat(new[] { value }).ToArray()));
}
/// <summary>
/// Allows an <see cref="FieldInfoElement"/> to be visited.
/// This method is called when the element accepts this visitor
/// instance.
/// </summary>
/// <param name="fieldInfoElement">
/// The <see cref="FieldInfoElement"/> being visited.
/// </param>
/// <returns>
/// A <see cref="IReflectionVisitor{T}" /> instance which can be used
/// to continue the visiting process with potentially updated
/// observations.
/// </returns>
/// <remarks>
/// <para>
/// This implementation simply returns
/// <paramref name="fieldInfoElement" /> without doing anything,
/// but since the method is virtual, child classes can override it.
/// </para>
/// </remarks>
public virtual IReflectionVisitor <T> Visit(
FieldInfoElement fieldInfoElement)
{
return(this);
}