private CompletionList MergeAndPruneCompletionLists(
IEnumerable <CompletionContext> completionLists, TextSpan contextSpan, bool isExclusive)
{
var displayNameToItemsMap = new Dictionary <string, List <CompletionItem> >();
CompletionItem suggestionModeItem = null;
foreach (var completionList in completionLists)
{
Contract.Assert(completionList != null);
foreach (var item in completionList.Items)
{
Contract.Assert(item != null);
AddToDisplayMap(item, displayNameToItemsMap);
}
// first one wins
suggestionModeItem = suggestionModeItem ?? completionList.SuggestionModeItem;
}
if (displayNameToItemsMap.Count == 0)
{
return(CompletionList.Empty);
}
// TODO(DustinCa): Revisit performance of this.
var totalItems = displayNameToItemsMap.Values.Flatten().ToList();
totalItems.Sort();
return(CompletionList.Create(
contextSpan, totalItems.ToImmutableArray(), this.GetRules(), suggestionModeItem,
isExclusive));
}
private CompletionList MergeAndPruneCompletionLists(
IEnumerable <CompletionContext> completionContexts,
TextSpan defaultSpan,
bool isExclusive)
{
// See if any contexts changed the completion list span. If so, the first context that
// changed it 'wins' and picks the span that will be used for all items in the completion
// list. If no contexts changed it, then just use the default span provided by the service.
var finalCompletionListSpan = completionContexts.FirstOrDefault(c => c.CompletionListSpan != defaultSpan)?.CompletionListSpan ?? defaultSpan;
var displayNameToItemsMap = new Dictionary <string, List <CompletionItem> >();
CompletionItem suggestionModeItem = null;
foreach (var context in completionContexts)
{
Contract.Assert(context != null);
foreach (var item in context.Items)
{
Contract.Assert(item != null);
AddToDisplayMap(item, displayNameToItemsMap);
}
// first one wins
suggestionModeItem = suggestionModeItem ?? context.SuggestionModeItem;
}
if (displayNameToItemsMap.Count == 0)
{
return(CompletionList.Empty);
}
// TODO(DustinCa): Revisit performance of this.
var totalItems = displayNameToItemsMap.Values.Flatten().ToList();
totalItems.Sort();
return(CompletionList.Create(
finalCompletionListSpan,
totalItems.ToImmutableArray(),
this.GetRules(),
suggestionModeItem,
isExclusive));
}