private static Task <Document> CopySwitchSectionAsync(
Document document,
SwitchSectionSyntax switchSection,
bool insertNewLine,
CancellationToken cancellationToken)
{
var switchStatement = (SwitchStatementSyntax)switchSection.Parent;
SyntaxList <SwitchSectionSyntax> sections = switchStatement.Sections;
int index = sections.IndexOf(switchSection);
SwitchLabelSyntax label = switchSection.Labels[0];
SyntaxToken firstToken = label.GetFirstToken();
SyntaxToken newFirstToken = firstToken.WithNavigationAnnotation();
if (insertNewLine &&
!firstToken.LeadingTrivia.Contains(SyntaxKind.EndOfLineTrivia))
{
newFirstToken = newFirstToken.PrependToLeadingTrivia(CSharpFactory.NewLine());
}
SwitchSectionSyntax newSection = switchSection
.WithLabels(switchSection.Labels.ReplaceAt(0, label.ReplaceToken(firstToken, newFirstToken)))
.WithFormatterAnnotation();
if (index == sections.Count - 1)
{
newSection = newSection.TrimTrailingTrivia();
}
SyntaxList <SwitchSectionSyntax> newSections = sections.Insert(index + 1, newSection);
SwitchStatementSyntax newSwitchStatement = switchStatement.WithSections(newSections);
return(document.ReplaceNodeAsync(switchStatement, newSwitchStatement, cancellationToken));
}