| 144 | CelEvaluationListener callback) const override; |
| 145 | |
| 146 | absl::StatusOr<CelValue> Trace( |
| 147 | const BaseActivation& activation, CelEvaluationState* state, |
| 148 | CelEvaluationListener callback) const override { |
| 149 | auto* state_impl = cel::internal::down_cast<EvaluationState*>(state); |
| 150 | return Trace(activation, state_impl->arena(), callback); |
| 151 | } |
| 152 | |
| 153 | // Exposed for inspection in tests. |
| 154 | const FlatExpression& flat_expression() const { return flat_expression_; } |