private static StyleCopSettings GetStyleCopSettings(AnalyzerOptions options, SyntaxTree tree, ImmutableArray <AdditionalText> additionalFiles, DeserializationFailureBehavior failureBehavior, CancellationToken cancellationToken)
{
foreach (var additionalFile in additionalFiles)
{
if (IsStyleCopSettingsFile(additionalFile.Path))
{
SourceText additionalTextContent = additionalFile.GetText(cancellationToken);
return(GetStyleCopSettings(options, tree, additionalFile.Path, additionalTextContent, failureBehavior));
}
}
if (tree != null)
{
var optionsProvider = options.AnalyzerConfigOptionsProvider().GetOptions(tree);
return(new StyleCopSettings(new JsonObject(), optionsProvider));
}
return(new StyleCopSettings());
}
private static StyleCopSettings GetStyleCopSettings(AnalyzerOptions options, SyntaxTree tree, string path, SourceText text, DeserializationFailureBehavior failureBehavior)
{
var optionsProvider = options.AnalyzerConfigOptionsProvider().GetOptions(tree);
try
{
var rootValue = JsonReader.Parse(text.ToString());
if (!rootValue.IsJsonObject)
{
throw new JsonParseException(
$"Settings file at '{path}' was missing or empty.",
JsonParseException.ErrorType.InvalidOrUnexpectedCharacter,
default);
}
var settingsObject = rootValue.AsJsonObject["settings"];
if (settingsObject.IsJsonObject)
{
return(new StyleCopSettings(settingsObject.AsJsonObject, optionsProvider));
}
else if (settingsObject.IsNull)
{
throw new InvalidSettingsException("\"settings\" must be a JSON object.");
}
return(new StyleCopSettings());
}
catch (InvalidSettingsException) when(failureBehavior == DeserializationFailureBehavior.ReturnDefaultSettings)
{
// The settings file is invalid -> return the default settings.
}
catch (JsonParseException) when(failureBehavior == DeserializationFailureBehavior.ReturnDefaultSettings)
{
// The settings file is invalid -> return the default settings.
}
return(new StyleCopSettings());
}