Class ErrorValueAssign

common/values/error_value.h:247–265

For use with `RETURN_IF_ERROR(...).With(cel::ErrorValueAssign(&result))` and `ASSIGN_OR_RETURN(..., ..., _.With(cel::ErrorValueAssign(&result)))`. IMPORTANT: If the returning type is `absl::Status` the result will be `absl::OkStatus()`. If the returning type is `absl::StatusOr ` the result will be `T()`.

// `absl::OkStatus()`. If the returning type is `absl::StatusOr<T>` the result
// will be `T()`.
class ErrorValueAssign final {
 public:
  ErrorValueAssign() = delete;

  explicit ErrorValueAssign(Value& value ABSL_ATTRIBUTE_LIFETIME_BOUND)
      : ErrorValueAssign(std::addressof(value)) {}

  explicit ErrorValueAssign(
      Value* absl_nonnull value ABSL_ATTRIBUTE_LIFETIME_BOUND)
      : value_(value) {
    ABSL_DCHECK(value != nullptr);
  }

  common_internal::ImplicitlyConvertibleStatus operator()(
      absl::Status status) const;

 private:
  Value* absl_nonnull value_;
};

template <>
struct ArenaTraits<ErrorValue> {