Method Evaluate

eval/tests/unknowns_end_to_end_test.cc:91–105

      : CelFunction(CreateDescriptor(name, type)), response_(response) {}

  absl::Status Evaluate(absl::Span<const CelValue> arguments, CelValue* result,
                        Arena* arena) const override {
    switch (response_) {
      case FunctionResponse::kUnknown:
        *result = CreateUnknownFunctionResultError(arena, "help message");
        break;
      case FunctionResponse::kTrue:
        *result = CelValue::CreateBool(true);
        break;
      case FunctionResponse::kFalse:
        *result = CelValue::CreateBool(false);
        break;
    }
    return absl::OkStatus();
  }

 private:
  FunctionResponse response_;