protected static AttributeList ConvertToAttributeList(object curvalue)
{
AttributeList multi;
if (curvalue == null)
{
multi = new AttributeList(); // make list to hold multiple values
multi.Add(curvalue); // Add previous single-valued attribute
}
else if (curvalue.GetType() == typeof(AttributeList))
{
// already a list made by Template
multi = (AttributeList)curvalue;
}
else if (curvalue is IList)
{
// existing attribute is non-Template List
// must copy to an Template-managed list before adding new attribute
// (can't alter incoming attributes)
IList listAttr = (IList)curvalue;
multi = new AttributeList(listAttr.Count);
multi.AddRange(listAttr.Cast <object>());
}
else
{
// curvalue nonlist and we want to Add an attribute
// must convert curvalue existing to list
multi = new AttributeList(); // make list to hold multiple values
multi.Add(curvalue); // Add previous single-valued attribute
}
return(multi);
}
/// <summary>
/// Gets a list of custom attributes
/// </summary>
/// <param name="propertyInfo"></param>
/// <returns></returns>
public static AttributeList GetCustomAttributeList(ICustomAttributeProvider propertyInfo)
{
var result = new AttributeList();
result.AddRange(propertyInfo.GetCustomAttributes(false).Cast <Attribute>());
return(result);
}
internal void Override(OverrideEditConfig ovEdit)
{
if (ovEdit.ReadOnly.HasValue)
{
ReadOnly = ovEdit.ReadOnly.Value;
}
if (ovEdit.Class != null)
{
Class = ovEdit.Class;
}
if (ovEdit.DefaultValue != null)
{
DefaultValue = ovEdit.DefaultValue;
}
if (ovEdit.Updating != null)
{
Updating = ovEdit.Updating;
}
if (ovEdit.AttributeList != null)
{
if (AttributeList == null)
{
AttributeList = ovEdit.AttributeList;
}
else
{
AttributeList.AddRange(ovEdit.AttributeList);
}
}
if (ovEdit.Display != null)
{
Display = ovEdit.Display;
}
}
public virtual Template Add(string name, object value)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
if (name.IndexOf('.') >= 0)
{
throw new ArgumentException("cannot have '.' in attribute names");
}
if (Group.TrackCreationEvents)
{
if (_debugState == null)
{
_debugState = new TemplateDebugState();
}
_debugState.AddAttributeEvents.Add(name, new AddAttributeEvent(name, value));
}
FormalArgument arg = null;
if (impl.HasFormalArgs)
{
arg = impl.TryGetFormalArgument(name);
if (arg == null)
{
throw new ArgumentException("no such attribute: " + name);
}
}
else
{
// define and make room in locals (a hack to make new Template("simple template") work.)
arg = impl.TryGetFormalArgument(name);
if (arg == null)
{
// not defined
arg = new FormalArgument(name);
impl.AddArgument(arg);
if (locals == null)
{
locals = new object[1];
}
else
{
Array.Resize(ref locals, impl.FormalArguments.Count);
}
locals[arg.Index] = EmptyAttribute;
}
}
object curvalue = locals[arg.Index];
if (curvalue == EmptyAttribute)
{
// new attribute
locals[arg.Index] = value;
return(this);
}
// attribute will be multi-valued for sure now
// convert current attribute to list if not already
// copy-on-Write semantics; copy a list injected by user to Add new value
AttributeList multi = ConvertToAttributeList(curvalue);
locals[arg.Index] = multi; // replace with list
// now, Add incoming value to multi-valued attribute
IList list = value as IList;
if (list != null)
{
// flatten incoming list into existing list
multi.AddRange(list.Cast <object>());
}
else
{
multi.Add(value);
}
return(this);
}
//
// Helper to add a enum of attributes ot an existing list
//
private static void AddAttributes(AttributeList list, IEnumerable <object> attributes)
{
// Attributes are ordered so those at the end of the
// list take prececence over those at the front.
list.AddRange(attributes);
}
protected static AttributeList ConvertToAttributeList(object curvalue)
{
AttributeList multi;
if (curvalue == null)
{
multi = new AttributeList(); // make list to hold multiple values
multi.Add(curvalue); // add previous single-valued attribute
}
else if (curvalue.GetType() == typeof(AttributeList))
{ // already a list made by ST
multi = (AttributeList)curvalue;
}
else if (curvalue is IList)
{ // existing attribute is non-ST List
// must copy to an ST-managed list before adding new attribute
// (can't alter incoming attributes)
IList listAttr = (IList)curvalue;
multi = new AttributeList(listAttr.Count);
multi.AddRange(listAttr);
}
else if (curvalue.GetType().IsArray)
{ // copy array to list
object[] a = (object[])curvalue;
multi = new AttributeList(a.Length);
multi.AddRange(a); // asList doesn't copy as far as I can tell
}
else
{
// curvalue nonlist and we want to add an attribute
// must convert curvalue existing to list
multi = new AttributeList(); // make list to hold multiple values
multi.Add(curvalue); // add previous single-valued attribute
}
return multi;
}
