public static Task <Document> RefactorAsync(
Document document,
UsingStatementSyntax usingStatement,
CancellationToken cancellationToken = default(CancellationToken))
{
StatementsInfo statementsInfo = SyntaxInfo.StatementsInfo(usingStatement);
int index = statementsInfo.Statements.IndexOf(usingStatement);
StatementsInfo newStatementsInfo = statementsInfo.RemoveAt(index);
var statements = new List <StatementSyntax>()
{
SyntaxFactory.LocalDeclarationStatement(usingStatement.Declaration)
};
statements.AddRange(GetStatements(usingStatement));
if (statements.Count > 0)
{
statements[0] = statements[0]
.WithLeadingTrivia(usingStatement.GetLeadingTrivia());
statements[statements.Count - 1] = statements[statements.Count - 1]
.WithTrailingTrivia(usingStatement.GetTrailingTrivia());
}
newStatementsInfo = newStatementsInfo.WithStatements(newStatementsInfo.Statements.InsertRange(index, statements));
return(document.ReplaceNodeAsync(statementsInfo.Node, newStatementsInfo.Node.WithFormatterAnnotation(), cancellationToken));
}
