/// <summary>
/// Populates R completion list for a given position
/// </summary>
/// <param name="position">Position in R text buffer</param>
/// <param name="session">Completion session</param>
/// <param name="completionSets">Completion sets to add to</param>
/// <param name="ast">Document abstract syntax tree</param>
internal void PopulateCompletionList(int position, ICompletionSession session, IList <CompletionSet> completionSets, AstRoot ast)
{
RCompletionContext context = new RCompletionContext(session, _textBuffer, ast, position);
bool autoShownCompletion = true;
if (session.TextView.Properties.ContainsProperty(CompletionController.AutoShownCompletion))
{
autoShownCompletion = session.TextView.Properties.GetProperty <bool>(CompletionController.AutoShownCompletion);
}
IReadOnlyCollection <IRCompletionListProvider> providers =
RCompletionEngine.GetCompletionForLocation(context, autoShownCompletion, _shell);
// Position is in R as is the applicable spa, so no need to map down
Span?applicableSpan = GetApplicableSpan(position, session);
if (applicableSpan.HasValue)
{
ITrackingSpan trackingSpan = context.TextBuffer.CurrentSnapshot.CreateTrackingSpan(applicableSpan.Value, SpanTrackingMode.EdgeInclusive);
List <RCompletion> completions = new List <RCompletion>();
bool sort = true;
foreach (IRCompletionListProvider provider in providers)
{
IReadOnlyCollection <RCompletion> entries = provider.GetEntries(context);
Debug.Assert(entries != null);
if (entries.Count > 0)
{
completions.AddRange(entries);
}
sort &= provider.AllowSorting;
}
if (sort)
{
completions.Sort(RCompletion.CompareOrdinal);
completions.RemoveDuplicates(RCompletion.CompareOrdinal);
}
CompletionSet completionSet = new RCompletionSet(session.TextView.TextBuffer, trackingSpan, completions);
completionSets.Add(completionSet);
}
}
internal void PopulateCompletionList(int position, ICompletionSession session, IList<CompletionSet> completionSets, AstRoot ast) {
RCompletionContext context = new RCompletionContext(session, _textBuffer, ast, position);
bool autoShownCompletion = true;
if (session.TextView.Properties.ContainsProperty(CompletionController.AutoShownCompletion))
autoShownCompletion = session.TextView.Properties.GetProperty<bool>(CompletionController.AutoShownCompletion);
IReadOnlyCollection<IRCompletionListProvider> providers =
RCompletionEngine.GetCompletionForLocation(context, autoShownCompletion);
Span applicableSpan = GetApplicableSpan(position, session);
ITrackingSpan trackingSpan = _textBuffer.CurrentSnapshot.CreateTrackingSpan(applicableSpan, SpanTrackingMode.EdgeInclusive);
List<RCompletion> completions = new List<RCompletion>();
bool sort = true;
foreach (IRCompletionListProvider provider in providers) {
IReadOnlyCollection<RCompletion> entries = provider.GetEntries(context);
Debug.Assert(entries != null);
if (entries.Count > 0) {
completions.AddRange(entries);
}
sort &= provider.AllowSorting;
}
if (sort) {
completions.Sort(RCompletion.Compare);
completions.RemoveDuplicates();
}
CompletionSet completionSet = new RCompletionSet(_textBuffer, trackingSpan, completions);
completionSets.Add(completionSet);
}