static CacheEntry CreateCacheEntry(Type enumType)
{
CacheEntry entry;
// First get the Resource Manager.
var attrs = (LocalizedNameContainerAttribute[])
enumType.GetCustomAttributes(s_attrContnrType, false);
if (attrs.Length == 0)
{
s_cache[enumType] = entry = new CacheEntry(null, null, false);
return(entry);
}
var container = attrs[0].ResourceManager;
var method = container.GetProperty("ResourceManager",
BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic, null,
s_resMgrType, Type.EmptyTypes, new ParameterModifier[0]);
if (method == null)
{
throw new InvalidOperationException("Cannot find ResourceManager in type " + container);
}
var resMgr = (ResourceManager)method.GetValue(null, null);
if (resMgr == null)
{
throw new InvalidOperationException("Failed to access ResourceManager in " + container);
}
// Resource Manager retrieved, now get the fields.
var fields = enumType.GetFields(BindingFlags.Public | BindingFlags.Static);
var ei = new EnumInfo();
bool isULong = enumType.GetEnumUnderlyingType() == typeof(ulong);
foreach (var field in fields)
{
var obj = (IConvertible)field.GetRawConstantValue();
long value;
if (isULong)
{
value = (long)(ulong)obj;
}
else
{
value = obj.ToInt64(null);
}
// Sometimes there are two fields with the same value
if (ei.ContainsKey(value))
{
continue;
}
ei.Add(value, field);
}
// Cache the found stuff
s_cache[enumType] = entry = new CacheEntry(resMgr, ei, enumType.IsDefined(s_attrFlagsType, false));
return(entry);
}