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// BSD 3-Clause License; see https://github.com/scikit-hep/awkward/blob/main/LICENSE
#ifndef AWKWARD_OPTIONBUILDER_H_
#define AWKWARD_OPTIONBUILDER_H_
#include <vector>
#include "awkward/common.h"
#include "awkward/BuilderOptions.h"
#include "awkward/GrowableBuffer.h"
#include "awkward/builder/Builder.h"
namespace awkward {
/// @class OptionBuilder
///
/// @brief Builder node that accumulates data with missing values (`None`).
class EXPORT_SYMBOL OptionBuilder: public Builder {
public:
/// @brief Create an OptionBuilder from a number of nulls (all missing).
/// @param options Configuration options for building an array;
/// these are passed to every Builder's constructor.
/// @param nullcount Length of the purely missing data to create.
/// @param content Builder for the non-missing data.
static const BuilderPtr
fromnulls(const BuilderOptions& options,
int64_t nullcount,
const BuilderPtr& content);
/// @brief Create an OptionBuilder from an existing builder (all
/// non-missing).
/// @param options Configuration options for building an array;
/// these are passed to every Builder's constructor.
/// @param content Builder for the non-missing data.
static const BuilderPtr
fromvalids(const BuilderOptions& options,
const BuilderPtr& content);
/// @brief Create a OptionBuilder from a full set of parameters.
///
/// @param options Configuration options for building an array;
/// these are passed to every Builder's constructor.
/// @param index Contains the accumulated index (like
/// {@link IndexedArrayOf#index IndexedOptionArray::index}).
/// @param content Builder for the non-missing data.
OptionBuilder(const BuilderOptions& options,
GrowableBuffer<int64_t> index,
const BuilderPtr content);
/// @brief User-friendly name of this class: `"OptionBuilder"`.
const std::string
classname() const override;
const std::string
to_buffers(BuffersContainer& container, int64_t& form_key_id) const override;
int64_t
length() const override;
void
clear() override;
/// @copydoc Builder::active()
///
/// An OptionBuilder is active if and only if its `content` is active.
bool
active() const override;
const BuilderPtr
null() override;
const BuilderPtr
boolean(bool x) override;
const BuilderPtr
integer(int64_t x) override;
const BuilderPtr
real(double x) override;
const BuilderPtr
complex(std::complex<double> x) override;
const BuilderPtr
datetime(int64_t x, const std::string& unit) override;
const BuilderPtr
timedelta(int64_t x, const std::string& unit) override;
const BuilderPtr
string(const char* x, int64_t length, const char* encoding) override;
const BuilderPtr
beginlist() override;
const BuilderPtr
endlist() override;
const BuilderPtr
begintuple(int64_t numfields) override;
const BuilderPtr
index(int64_t index) override;
const BuilderPtr
endtuple() override;
const BuilderPtr
beginrecord(const char* name, bool check) override;
void
field(const char* key, bool check) override;
const BuilderPtr
endrecord() override;
const GrowableBuffer<int64_t>& buffer() const { return index_; }
const GrowableBuffer<int64_t>& index() { return index_; }
const BuilderPtr builder() const { return content_; }
void
maybeupdate(const BuilderPtr builder);
private:
GrowableBuffer<int64_t> index_;
BuilderPtr content_;
};
}
#endif // AWKWARD_OPTIONBUILDER_H_
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