public static bool TryGetInsertionText(CompletionItem item, [NotNullWhen(true)] out string?insertionText) => SymbolCompletionItem.TryGetInsertionText(item, out insertionText);
static async Task <TCompletionItem> CreateCompletionItemAsync <TCompletionItem>(
LSP.CompletionParams request,
Document document,
CompletionItem item,
CompletionResolveData?completionResolveData,
bool supportsVSExtensions,
Dictionary <ImmutableArray <CharacterSetModificationRule>, string[]> commitCharacterRulesCache,
CompletionService completionService,
string?clientName,
bool returnTextEdits,
bool snippetsSupported,
StringBuilder stringBuilder,
SourceText?documentText,
TextSpan?defaultSpan,
LSP.Range?defaultRange,
CancellationToken cancellationToken) where TCompletionItem : LSP.CompletionItem, new()
{
// Generate display text
stringBuilder.Append(item.DisplayTextPrefix);
stringBuilder.Append(item.DisplayText);
stringBuilder.Append(item.DisplayTextSuffix);
var completeDisplayText = stringBuilder.ToString();
stringBuilder.Clear();
var completionItem = new TCompletionItem
{
Label = completeDisplayText,
SortText = item.SortText,
FilterText = item.FilterText,
Kind = GetCompletionKind(item.Tags),
Data = completionResolveData,
Preselect = ShouldItemBePreselected(item),
};
// Complex text edits (e.g. override and partial method completions) are always populated in the
// resolve handler, so we leave both TextEdit and InsertText unpopulated in these cases.
if (item.IsComplexTextEdit)
{
// Razor C# is currently the only language client that supports LSP.InsertTextFormat.Snippet.
// We can enable it for regular C# once LSP is used for local completion.
if (snippetsSupported)
{
completionItem.InsertTextFormat = LSP.InsertTextFormat.Snippet;
}
}
// If the feature flag is on, always return a TextEdit.
else if (returnTextEdits)
{
var textEdit = await GenerateTextEdit(
document, item, completionService, documentText, defaultSpan, defaultRange, cancellationToken).ConfigureAwait(false);
completionItem.TextEdit = textEdit;
}
// If the feature flag is off, return an InsertText.
else
{
completionItem.InsertText = SymbolCompletionItem.TryGetInsertionText(item, out var insertionText) ? insertionText : completeDisplayText;
}
var commitCharacters = GetCommitCharacters(item, commitCharacterRulesCache, supportsVSExtensions);
if (commitCharacters != null)
{
completionItem.CommitCharacters = commitCharacters;
}
return(completionItem);