private async Task <Document> RemoveLeadingBlankLineAsync(Document document, ArgumentListSyntax syntax, CancellationToken cancellationToken)
{
var tabSize = document.Project.Solution.Workspace.Options.GetOption(FormattingOptions.TabSize, LanguageNames.CSharp);
bool useTabs = document.Project.Solution.Workspace.Options.GetOption(FormattingOptions.UseTabs, LanguageNames.CSharp);
var root = await document.GetSyntaxRootAsync();
var newSyntax = syntax.ReplaceToken(
syntax.OpenParenToken,
syntax.OpenParenToken
.WithTrailingTrivia(SyntaxFactory.EndOfLine(Environment.NewLine)));
newSyntax = newSyntax.ReplaceTokens(
newSyntax.Arguments.GetSeparators(),
(oldNode, newNode) =>
{
if (oldNode.IsKind(SyntaxKind.CommaToken))
{
return(oldNode.WithTrailingTrivia(SyntaxFactory.EndOfLine(Environment.NewLine)).WithLeadingTrivia());
}
return(oldNode);
});
var argumentTrivia = IndentationHelper.GetIndentationTriviaByNode(useTabs, tabSize, root, syntax.OpenParenToken, cancellationToken);
newSyntax = newSyntax.ReplaceNodes(
newSyntax.Arguments,
(oldNode, newNode) =>
{
if (oldNode.IsKind(SyntaxKind.Argument))
{
return(IndentationHelper.FormatNodeRecursive(oldNode, argumentTrivia, useTabs, tabSize));
}
return(oldNode);
});
var newRoot = root.ReplaceNode(syntax, newSyntax);
var newDoc = document.WithSyntaxRoot(newRoot);
return(newDoc);
}