private static async Task <Document> SimplifyLambdaExpressionParameterListAsync(
Document document,
ParenthesizedLambdaExpressionSyntax lambda,
CancellationToken cancellationToken)
{
SyntaxNode oldRoot = await document.GetSyntaxRootAsync(cancellationToken);
LambdaExpressionSyntax newLambda = SimplifyLambdaExpressionParameterListSyntaxRewriter.VisitNode(lambda);
if (lambda.ParameterList.Parameters.Count == 1)
{
newLambda = ConvertParenthesizedLambdaToSimpleLambda((ParenthesizedLambdaExpressionSyntax)newLambda);
}
newLambda = newLambda.WithAdditionalAnnotations(Formatter.Annotation);
SyntaxNode newRoot = oldRoot.ReplaceNode(lambda, newLambda);
return(document.WithSyntaxRoot(newRoot));
}
