internal override async Task <SourceText> FormatFileAsync(
Document document,
SourceText sourceText,
OptionSet optionSet,
AnalyzerConfigOptions analyzerConfigOptions,
FormatOptions formatOptions,
ILogger logger,
CancellationToken cancellationToken)
{
// If we are fixing CodeStyle and the 'IDE0005' diagnostic is configured, then
// see if we can remove unused imports.
// If we are not saving files, do not make changes in this formatter. They will be
// reported by their diagnostic id when the analyzer formatter runs.
if (!formatOptions.SaveFormattedFiles)
{
return(sourceText);
}
// If diagnostics are being filtered and IDE0005 isn't specified, then make no changes.
if (!formatOptions.Diagnostics.IsEmpty &&
!formatOptions.Diagnostics.Contains(IDE0005))
{
return(sourceText);
}
var tree = await document.GetSyntaxTreeAsync(cancellationToken).ConfigureAwait(false);
if (tree is null)
{
return(sourceText);
}
var severity = analyzerConfigOptions.GetDiagnosticSeverity(document.Project, tree, IDE0005, Style);
if (severity < formatOptions.CodeStyleSeverity)
{
return(sourceText);
}
var formattedDocument = await RemoveUnnecessaryImportsHelper.RemoveUnnecessaryImportsAsync(document, cancellationToken).ConfigureAwait(false);
if (formattedDocument is null)
{
return(sourceText);
}
var isSameVersion = await IsSameDocumentAndVersionAsync(document, formattedDocument, cancellationToken).ConfigureAwait(false);
if (isSameVersion)
{
return(sourceText);
}
var formattedText = await formattedDocument.GetTextAsync(cancellationToken).ConfigureAwait(false);
return(formattedText);
}