private static Task <Document> RefactorAsync <TNode>(
Document document,
WhileStatementSyntax whileStatement,
ForStatementSyntax forStatement,
List <TNode> list,
CancellationToken cancellationToken) where TNode : StatementSyntax
{
forStatement = forStatement
.WithFormatterAnnotation()
.TrimLeadingTrivia()
.PrependToLeadingTrivia(list[0].GetLeadingTrivia());
StatementListInfo statementsInfo = SyntaxInfo.StatementListInfo(whileStatement);
SyntaxList <StatementSyntax> statements = statementsInfo.Statements;
int index = statements.IndexOf(list[0]);
IEnumerable <StatementSyntax> newStatements = statements.Take(index)
.Concat(new ForStatementSyntax[] { forStatement })
.Concat(statements.Skip(index + list.Count + 1));
return(document.ReplaceStatementsAsync(statementsInfo, newStatements, cancellationToken));
}
