internal static IEnumerable <AP.FileUpdate> GetUpdatesForSnapshot(PythonTextBufferInfo buffer, ITextSnapshot snapshot)
{
if (buffer.DoNotParse || snapshot.IsReplBufferWithCommand())
{
yield break;
}
var lastSent = buffer.AddSentSnapshot(snapshot);
// Update last sent snapshot and the analysis cookie to our
// current snapshot.
var entry = buffer.AnalysisEntry;
if (entry != null)
{
entry.AnalysisCookie = new SnapshotCookie(snapshot);
}
if (lastSent == null || lastSent == snapshot || lastSent.TextBuffer != buffer.Buffer)
{
// First time parsing from a live buffer, send the entire
// file and set our initial snapshot. We'll roll forward
// to new snapshots when we receive the errors event. This
// just makes sure that the content is in sync.
yield return(new AP.FileUpdate {
content = snapshot.GetText(),
version = snapshot.Version.VersionNumber,
kind = AP.FileUpdateKind.reset
});
yield break;
}
foreach (var v in GetVersions(lastSent.Version, snapshot.Version))
{
yield return(new AP.FileUpdate {
version = v.VersionNumber + 1,
changes = GetChanges(buffer, v).Reverse().ToArray(),
kind = AP.FileUpdateKind.changes
});
}
}
