private static void AnalyzeOperation(OperationAnalysisContext context) { var expression = context.GetBinaryExpressionSyntax(); var identifierName = expression.GetIdentifierNameSyntax(); if (identifierName != null) { var location = expression.GetLocation(); var argument = identifierName.Identifier.ValueText; var diagnostic = Diagnostic.Create(Rule, location, argument); context.ReportDiagnostic(diagnostic); } }