Method RetrieveValue

eval/public/activation.h:115–123

Retrieve associated CelValue. If the value is not set and producer is set, obtain and cache value from producer.

    // If the value is not set and producer is set,
    // obtain and cache value from producer.
    absl::optional<CelValue> RetrieveValue(google::protobuf::Arena* arena) const {
      if (!value_.has_value()) {
        if (producer_) {
          value_ = producer_->Produce(arena);
        }
      }

      return value_;
    }

    bool ClearValue() {
      bool result = value_.has_value();