public BraceCompletionResult GetBraceCompletion(BraceCompletionContext context)
{
Debug.Assert(context.HasCompletionForOpeningBrace(OpeningBrace));
var closingPoint = context.ClosingPoint;
var braceTextEdit = new TextChange(TextSpan.FromBounds(closingPoint, closingPoint), ClosingBrace.ToString());
// The caret location should be in between the braces.
var originalOpeningLinePosition = context.Document.Text.Lines.GetLinePosition(context.OpeningPoint);
var caretLocation = new LinePosition(originalOpeningLinePosition.Line, originalOpeningLinePosition.Character + 1);
return(new BraceCompletionResult(ImmutableArray.Create(braceTextEdit), caretLocation));
}
public Task <bool> HasBraceCompletionAsync(BraceCompletionContext context, Document document, CancellationToken cancellationToken)
{
if (!context.HasCompletionForOpeningBrace(OpeningBrace))
{
return(Task.FromResult(false));
}
var openingToken = context.GetOpeningToken();
if (!NeedsSemantics)
{
return(Task.FromResult(IsValidOpenBraceTokenAtPosition(context.Document.Text, openingToken, context.OpeningPoint)));
}
// Pass along a document with frozen partial semantics. Brace completion is a highly latency sensitive
// operation. We don't want to wait on things like source generators to figure things out.
return(IsValidOpenBraceTokenAtPositionAsync(document.WithFrozenPartialSemantics(cancellationToken), openingToken, context.OpeningPoint, cancellationToken));
}