/// <summary>
/// Fills in stringIndexMap with data from stringIndex and write to stringWriter.
/// Releases stringIndex as the stringTable is sealed after this point.
/// </summary>
private void SerializeStringHeap()
{
// Sort by suffix and remove stringIndex
var sorted = new List <KeyValuePair <string, StringIdx> >(_strings);
sorted.Sort(new SuffixSort());
_strings = null;
_stringWriter = new BlobBuilder(1024);
// Create VirtIdx to Idx map and add entry for empty string
_stringIndexToHeapPositionMap = new int[sorted.Count + 1];
_stringIndexToHeapPositionMap[0] = 0;
_stringWriter.WriteByte(0);
// Find strings that can be folded
string prev = string.Empty;
foreach (KeyValuePair <string, StringIdx> entry in sorted)
{
int position = _stringWriter.Position;
// It is important to use ordinal comparison otherwise we'll use the current culture!
if (prev.EndsWith(entry.Key, StringComparison.Ordinal))
{
// Map over the tail of prev string. Watch for null-terminator of prev string.
_stringIndexToHeapPositionMap[entry.Value.MapIndex] = position - (s_utf8Encoding.GetByteCount(entry.Key) + 1);
}
else
{
_stringIndexToHeapPositionMap[entry.Value.MapIndex] = position;
_stringWriter.WriteString(entry.Key, s_utf8Encoding);
_stringWriter.WriteByte(0);
}
prev = entry.Key;
}
}
