private static async Task <Document> RefactorAsync(
Document document,
StatementSyntax statement,
ExpressionSyntax condition,
CancellationToken cancellationToken)
{
SyntaxNode oldRoot = await document.GetSyntaxRootAsync(cancellationToken);
SyntaxTriviaList triviaList = SyntaxFactory.TriviaList(SyntaxHelper.NewLine)
.AddRange(statement.GetIndentTrivia())
.Add(SyntaxHelper.DefaultIndent);
var rewriter = new SyntaxRewriter(triviaList);
var newCondition = (ExpressionSyntax)rewriter.Visit(condition);
StatementSyntax newStatement = SetCondition(statement, newCondition)
.WithAdditionalAnnotations(Formatter.Annotation);
return(document.WithSyntaxRoot(oldRoot.ReplaceNode(statement, newStatement)));
}