public override StoryVar GetMember(StoryVar member)
{
StoryVar val;
if (TryGetMemberArray(member, out val))
{
return(val);
}
var memberName = member.ToString().ToLower();
if (memberName == "length")
{
val = this.Length;
}
else
{
int index;
if (HarloweUtils.TryPositionToIndex(memberName, Values.Count, out index))
{
try { val = Values[index]; }
catch (System.IndexOutOfRangeException)
{
throw new VarTypeMemberException(string.Format("The array doesn't have a {0} position.", memberName));
}
}
else
{
throw new VarTypeMemberException(string.Format("The array doesn't have a member called {0}.", memberName));
}
}
return(new StoryVar(val));
}
void EnsureNotPosition(string memberName)
{
int index;
if (HarloweUtils.TryPositionToIndex(memberName, Values.Count, out index))
{
throw new VarTypeMemberException("Datasets can't be accessed by position.");
}
}
public override StoryVar GetMember(string container, StoryVar member)
{
// Special case when member is an array
if (member.Value is HarloweArray)
{
var memberArray = (HarloweArray)member.Value;
var buffer = new char[memberArray.Length];
for (int i = 0; i < memberArray.Length; i++)
{
buffer[i] = GetMember(container, StoryVar.ConvertTo <int>(memberArray.Values[i])).ToString()[0];
}
return(new string(buffer));
}
int index;
if (HarloweUtils.TryPositionToIndex(member, container.Length, out index))
{
return(new StoryVar(container[index].ToString()));
}
return(base.GetMember(container, member));
}
public override void RemoveMember(StoryVar member)
{
var memberName = member.ToString().ToLower();
if (memberName == "length")
{
throw new VarTypeMemberException("'length' cannot be modified.");
}
int index;
if (HarloweUtils.TryPositionToIndex(memberName, Values.Count, out index))
{
try { Values.RemoveAt(index); }
catch (System.IndexOutOfRangeException)
{
throw new VarTypeMemberException(string.Format("The array doesn't have a {0} position.", memberName));
}
}
else
{
throw new VarTypeMemberException(string.Format("The array doesn't have a member called {0}.", memberName));
}
}
