public StoryVar Duplicate()
{
object val;
if (this.Value == null || this.Value.GetType().IsValueType)
{
val = this.Value;
}
else
{
// Service type
IVarTypeService service = GetTypeService(this.Value.GetType());
if (service != null)
{
val = service.Duplicate(this.Value);
}
// Var type
else if (this.Value is IVarType)
{
val = (this.Value as IVarType).Duplicate();
}
val = this.Value;
}
return(new StoryVar(val));
}
public StoryVar GetMember(StoryVar member)
{
if (Value == null)
{
throw new VarTypeMemberException("Cannot get members of an empty story variable.");
}
if (member.Value == null)
{
throw new VarTypeMemberException("Cannot treat an empty variable as a member.");
}
IVarTypeService service = GetTypeService(this.Value.GetType());
if (service != null)
{
return(service.GetMember(this.Value, member));
}
if (this.Value is IVarType)
{
return(((IVarType)this.Value).GetMember(member));
}
throw new VarTypeMemberException(string.Format("Cannot get member of a story variable of type {0}.", this.Value.GetType().Name));
}
public static IVarTypeService GetTypeService(Type t)
{
IVarTypeService service = null;
_typeServices.TryGetValue(t, out service);
return(service);
}
public static bool TryConvertTo(object obj, Type t, out object result, bool strict)
{
object val = GetInnerValue(obj);
// Source conversion
if (val != null)
{
// Same type
if (t.IsAssignableFrom(val.GetType()))
{
result = val;
return(true);
}
// Service type
IVarTypeService service = GetTypeService(val.GetType());
if (service != null && service.ConvertTo(val, t, out result, strict))
{
return(true);
}
// Var type
if (val is IVarType)
{
if ((val as IVarType).ConvertTo(t, out result, strict))
{
return(true);
}
}
}
// Target converion
IVarTypeService targetService = GetTypeService(t);
if (targetService != null && targetService.ConvertFrom(val, out result, strict))
{
return(true);
}
result = null;
return(false);
}
public void RemoveMember(StoryVar member)
{
if (Value == null)
{
throw new VarTypeMemberException("Cannot remove member of empty story variable.");
}
IVarTypeService service = GetTypeService(this.Value.GetType());
if (service != null)
{
service.RemoveMember(this.Value, member);
return;
}
if (this.Value is IVarType)
{
((IVarType)this.Value).RemoveMember(member);
return;
}
throw new VarTypeMemberException(string.Format("Cannot remove member of a story variable of type {0}.", this.Value.GetType().Name));
}
public static void RegisterTypeService <T>(IVarTypeService service)
{
_typeServices[typeof(T)] = service;
}
