private static void CheckForDiagnostics(SyntaxNodeAnalysisContext context, FieldDeclarationSyntax fieldNode, IFieldSymbol fieldSymbol)
{
var isStatic = fieldSymbol.IsStatic;
var isPublic = fieldSymbol.DeclaredAccessibility.HasFlag(Accessibility.Public);
var isReadOnly = fieldSymbol.IsReadOnly;
if (!isStatic || !isPublic || !isReadOnly)
{
context.ReportDiagnostic(Diagnostic.Create(
EvaluateManagedBackingFieldsAnalayzer.mustBePublicStaticAndReadonlyRule,
fieldNode.GetLocation()));
}
}