static Type P_GenerateRowType(Dictionary <string, int> columnNamesOrder, IComparer <string> columnNameComparer)
{
columnNamesOrder.EnsureNotNull(nameof(columnNamesOrder));
columnNameComparer.EnsureNotNull(nameof(columnNameComparer));
var columnNamesSorted =
columnNamesOrder
.OrderBy(i => i.Key, columnNameComparer)
.Select(i => i.Key)
.ToArray();
if (columnNamesSorted.Length < 1)
{
throw new ArgumentException(rt.Format(typeof(Array), "CanNotEmpty"), nameof(columnNamesOrder));
}
//
string typeName;
Guid typeSgnatureGuid;
using (var acquiredBuffer = StringBuilderUtilities.AcquireBuffer()) {
var sb = acquiredBuffer.StringBuilder;
for (var i = 0; i < columnNamesSorted.Length; i++)
{
sb.Append('[');
sb.Append(columnNamesSorted[i]);
sb.Append(']');
if (i != columnNamesSorted.Length - 1)
{
sb.Append(',');
}
}
var sha1 = default(SHA1);
try {
#if TRG_NETFRAMEWORK || TRG_SL5
sha1 = new SHA1Managed();
#else
sha1 = SHA1.Create();
#endif
var guidBytes = new byte[16];
sha1.Initialize();
Array.Copy(sha1.ComputeHash(Encoding.Unicode.GetBytes(sb.ToString())), 0, guidBytes, 0, guidBytes.Length);
typeName = "CsvRow_" + (typeSgnatureGuid = new Guid(guidBytes)).ToString("n");
} finally {
(sha1 as IDisposable)?.Dispose();
}
}
Type result;
if (!__RowTypeRepository.TryGetValue(typeSgnatureGuid, out result))
{
Array.Sort(columnNamesSorted, (x, y) => columnNamesOrder[x].CompareTo(columnNamesOrder[y]));
lock (__RowTypeRepository) {
if (!__RowTypeRepository.TryGetValue(typeSgnatureGuid, out result))
{
__RowTypeRepository.Add(typeSgnatureGuid, result = __RowTypeGenerator.EmitType(typeName, columnNamesSorted));
}
}
}
return(result);
}
public void Sort(int index, int count, IComparer <T> comparer)
{
comparer.EnsureNotNull(nameof(comparer));
index.EnsurePositive(nameof(index));
count.EnsurePositive(nameof(count));
(index + count).EnsureInRange(1, Count, $"{nameof(index)} + {nameof(count)}");
Array.Sort(m_items, index, count, comparer);
m_version++;
}
