private EnumCollection ReadEnums(XPathNavigator nav)
{
EnumCollection enums = new EnumCollection();
Enum all = new Enum() { Name = Settings.CompleteEnumName };
if (nav != null)
{
foreach (XPathNavigator node in nav.SelectChildren("enum", String.Empty))
{
Enum e = new Enum()
{
Name = node.GetAttribute("name", String.Empty),
Type = node.GetAttribute("type", String.Empty)
};
if (String.IsNullOrEmpty(e.Name))
throw new InvalidOperationException(String.Format("Empty name for enum element {0}", node.ToString()));
foreach (XPathNavigator param in node.SelectChildren(XPathNodeType.Element))
{
Constant c = null;
switch (param.Name)
{
case "token":
c = new Constant
{
Name = param.GetAttribute("name", String.Empty),
Value = param.GetAttribute("value", String.Empty)
};
break;
case "use":
c = new Constant
{
Name = param.GetAttribute("token", String.Empty),
Reference = param.GetAttribute("enum", String.Empty),
Value = param.GetAttribute("token", String.Empty),
};
break;
default:
throw new NotSupportedException();
}
Utilities.Merge(all, c);
try
{
if (!e.ConstantCollection.ContainsKey(c.Name))
{
e.ConstantCollection.Add(c.Name, c);
}
else if (e.ConstantCollection[c.Name].Value != c.Value)
{
var existing = e.ConstantCollection[c.Name];
if (existing.Reference != null && c.Reference == null)
{
e.ConstantCollection[c.Name] = c;
}
else if (existing.Reference == null && c.Reference != null)
{
// Keep existing
}
else
{
Console.WriteLine("[Warning] Conflicting token {0}.{1} with value {2} != {3}",
e.Name, c.Name, e.ConstantCollection[c.Name].Value, c.Value);
}
}
}
catch (ArgumentException ex)
{
Console.WriteLine("[Warning] Failed to add constant {0} to enum {1}: {2}", c.Name, e.Name, ex.Message);
}
}
Utilities.Merge(enums, e);
}
}
Utilities.Merge(enums, all);
return enums;
}