internal override async Task <SourceText> FormatFileAsync(
Document document,
SourceText sourceText,
OptionSet optionSet,
AnalyzerConfigOptions analyzerConfigOptions,
FormatOptions formatOptions,
ILogger logger,
CancellationToken cancellationToken)
{
if (!analyzerConfigOptions.TryGetValue("insert_final_newline", out var insertFinalNewlineValue) ||
!bool.TryParse(insertFinalNewlineValue, out var insertFinalNewline))
{
return(await document.GetTextAsync(cancellationToken).ConfigureAwait(false));
}
if (!EndOfLineFormatter.TryGetEndOfLine(analyzerConfigOptions, out var endOfLine))
{
endOfLine = Environment.NewLine;
}
var lastLine = sourceText.Lines.Last();
var hasFinalNewline = lastLine.Span.IsEmpty;
if (insertFinalNewline && !hasFinalNewline)
{
var finalNewlineSpan = new TextSpan(lastLine.End, 0);
var addNewlineChange = new TextChange(finalNewlineSpan, endOfLine);
sourceText = sourceText.WithChanges(addNewlineChange);
}
else if (!insertFinalNewline && hasFinalNewline)
{
// In the case of empty files where there is a single empty line, there is nothing to remove.
while (sourceText.Lines.Count > 1 && hasFinalNewline)
{
var lineBeforeLast = sourceText.Lines[sourceText.Lines.Count - 2];
var finalNewlineSpan = new TextSpan(lineBeforeLast.End, lineBeforeLast.EndIncludingLineBreak - lineBeforeLast.End);
var removeNewlineChange = new TextChange(finalNewlineSpan, string.Empty);
sourceText = sourceText.WithChanges(removeNewlineChange);
lastLine = sourceText.Lines.Last();
hasFinalNewline = lastLine.Span.IsEmpty;
}
}
return(sourceText);
}
internal override async Task <SourceText> FormatFileAsync(
Document document,
SourceText sourceText,
OptionSet optionSet,
AnalyzerConfigOptions analyzerConfigOptions,
FormatOptions formatOptions,
ILogger logger,
CancellationToken cancellationToken)
{
if (!analyzerConfigOptions.TryGetValue("insert_final_newline", out var insertFinalNewlineValue) ||
!bool.TryParse(insertFinalNewlineValue, out var insertFinalNewline))
{
return(await document.GetTextAsync(cancellationToken).ConfigureAwait(false));
}
if (!EndOfLineFormatter.TryGetEndOfLine(analyzerConfigOptions, out var endOfLine))
{
endOfLine = Environment.NewLine;
}
var lastLine = sourceText.Lines[^ 1];
