protected override IEditorBraceCompletionSession CreateEditorSession(Document document, int openingPosition, char openingBrace, CancellationToken cancellationToken)
{
var syntaxFactsService = document.GetLanguageService <ISyntaxFactsService>();
switch (openingBrace)
{
case Braces.CurlyBrace.OpenCharacter:
return(InterpolationCompletionSession.IsContext(document, openingPosition, cancellationToken)
? new InterpolationCompletionSession()
: (IEditorBraceCompletionSession) new CurlyBraceCompletionSession(syntaxFactsService));
case Braces.DoubleQuote.OpenCharacter:
return(InterpolatedStringCompletionSession.IsContext(document, openingPosition, cancellationToken)
? new InterpolatedStringCompletionSession()
: (IEditorBraceCompletionSession) new StringLiteralCompletionSession(syntaxFactsService));
case Braces.Bracket.OpenCharacter: return(new BracketCompletionSession(syntaxFactsService));
case Braces.Parenthesis.OpenCharacter: return(new ParenthesisCompletionSession(syntaxFactsService));
case Braces.SingleQuote.OpenCharacter: return(new CharLiteralCompletionSession(syntaxFactsService));
case Braces.LessAndGreaterThan.OpenCharacter: return(new LessAndGreaterThanCompletionSession(syntaxFactsService));
default:
throw new InvalidOperationException("Unexpected value: " + openingBrace);
}
}
protected override bool CheckCodeContext(Document document, int position, char openingBrace, CancellationToken cancellationToken)
{
// SPECIAL CASE: Allow in curly braces in string literals to support interpolated strings.
if (openingBrace == Braces.CurlyBrace.OpenCharacter &&
InterpolationCompletionSession.IsContext(document, position, cancellationToken))
{
return(true);
}
if (openingBrace == Braces.DoubleQuote.OpenCharacter &&
InterpolatedStringCompletionSession.IsContext(document, position, cancellationToken))
{
return(true);
}
// Otherwise, defer to the base implementation.
return(base.CheckCodeContext(document, position, openingBrace, cancellationToken));
}