public static bool TryGetOption(
this IEditorConfigStorageLocation editorConfigStorageLocation,
AnalyzerConfigOptions analyzerConfigOptions,
Type type,
out object value
)
{
// This is a workaround until we have an API for enumeratings AnalyzerConfigOptions. See https://github.com/dotnet/roslyn/issues/41840
var backingField = analyzerConfigOptions
.GetType()
.GetField(
"_backing",
System.Reflection.BindingFlags.NonPublic
| System.Reflection.BindingFlags.Instance
);
var backing = backingField?.GetValue(analyzerConfigOptions);
if (backing is IReadOnlyDictionary <string, string> backingDictionary)
{
return(editorConfigStorageLocation.TryGetOption(backingDictionary, type, out value));
}
value = null;
return(false);
}
private static ImmutableDictionary <string, string> ReadOptions(AnalyzerConfigOptions analyzerConfigOptions)
{
var backing = analyzerConfigOptions.GetType()
.GetFields(BindingFlags.NonPublic | BindingFlags.Instance)
.FirstOrDefault(g => g.Name == "_backing");
return(backing.GetValue(analyzerConfigOptions) as ImmutableDictionary <string, string>);
}
public static bool TryGetOption(this IEditorConfigStorageLocation editorConfigStorageLocation, AnalyzerConfigOptions analyzerConfigOptions, Type type, out object?value)
{
// This is a workaround until we have an API for enumeratings AnalyzerConfigOptions. See https://github.com/dotnet/roslyn/issues/41840
if (analyzerConfigOptions.GetType().FullName == typeof(DictionaryAnalyzerConfigOptions).FullName)
{
var optionsField = analyzerConfigOptions.GetType().GetField(nameof(DictionaryAnalyzerConfigOptions.Options), BindingFlags.NonPublic | BindingFlags.Instance);
Contract.ThrowIfNull(optionsField);
var options = optionsField.GetValue(analyzerConfigOptions);
Contract.ThrowIfNull(options);
return(editorConfigStorageLocation.TryGetOption((ImmutableDictionary <string, string?>)options, type, out value));
}
value = null;
return(false);
}
// Local functions.
static ImmutableDictionary <string, string>?TryGetBackingOptionsDictionary(AnalyzerConfigOptions analyzerConfigOptions)
{
// Reflection based optimization for analyzer config options.
// Ideally 'AnalyzerConfigOptions' would expose such an the API.
var type = analyzerConfigOptions.GetType();
const BindingFlags flags = BindingFlags.Instance | BindingFlags.NonPublic;
return(type.GetField("_backing", flags)?.GetValue(analyzerConfigOptions) as ImmutableDictionary <string, string> ??
type.GetField("_analyzerOptions", flags)?.GetValue(analyzerConfigOptions) as ImmutableDictionary <string, string>);
}