private void TextBufferChangedOnBackground(object sender, TextContentChangedEventArgs e)
{
if (e.Changes.Count == 0)
{
return;
}
if (e.Changes[0].NewLength == 0)
{
state.Sb.Clear();
return;
}
// Check if user is typing into what we're trying to suggest
if (state.Sb.ToString().StartsWith(e.Changes[0].NewText))
{
state.Sb.Remove(0, e.Changes[0].NewLength);
return;
}
// 2.If user is typing a completely different thing, check cache
// a. Synchronous cache check
// b. If nothing, async query (the function might not query, but whatever)
var codeBeforeCaret = new SnapshotSpan(view.TextSnapshot,
0,
curCaretBufferPosition).GetText();
var normalized = DocumentProcessor.NormalizeCode(codeBeforeCaret) + e.Changes[0].NewText;
var completion = state.Cache.GetCompletion(normalized);
state.Sb.Clear();
state.Sb.Append(completion);
if (completion.Length == 0)
{
// Used to grab the filename
view.TextBuffer.Properties.TryGetProperty(typeof(ITextDocument),
out ITextDocument doc);
_ = Task.Run(() => RequestServer(normalized, doc));
}
else
{
state.Sb.Remove(0, e.Changes[0].NewLength);
}
}
