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#pragma clang system_header
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
// Array accessor types for primitive/C-type-based arrays, such as numbers,
// boolean, and temporal types.
#pragma once
#include <cstdint>
#include <memory>
#include "arrow/array/array_base.h"
#include "arrow/array/data.h"
#include "arrow/stl_iterator.h"
#include "arrow/type.h"
#include "arrow/type_fwd.h" // IWYU pragma: export
#include "arrow/type_traits.h"
#include "arrow/util/bit_util.h"
#include "arrow/util/macros.h"
#include "arrow/util/visibility.h"
namespace arrow20 {
/// Concrete Array class for boolean data
class ARROW_EXPORT BooleanArray : public PrimitiveArray {
public:
using TypeClass = BooleanType;
using IteratorType = stl::ArrayIterator<BooleanArray>;
explicit BooleanArray(const std::shared_ptr<ArrayData>& data);
BooleanArray(int64_t length, const std::shared_ptr<Buffer>& data,
const std::shared_ptr<Buffer>& null_bitmap = NULLPTR,
int64_t null_count = kUnknownNullCount, int64_t offset = 0);
bool Value(int64_t i) const {
return bit_util::GetBit(reinterpret_cast<const uint8_t*>(raw_values_),
i + data_->offset);
}
bool GetView(int64_t i) const { return Value(i); }
std::optional<bool> operator[](int64_t i) const { return *IteratorType(*this, i); }
/// \brief Return the number of false (0) values among the valid
/// values. Result is not cached.
int64_t false_count() const;
/// \brief Return the number of true (1) values among the valid
/// values. Result is not cached.
int64_t true_count() const;
IteratorType begin() const { return IteratorType(*this); }
IteratorType end() const { return IteratorType(*this, length()); }
protected:
using PrimitiveArray::PrimitiveArray;
};
/// \addtogroup numeric-arrays
///
/// @{
/// \brief Concrete Array class for numeric data with a corresponding C type
///
/// This class is templated on the corresponding DataType subclass for the
/// given data, for example NumericArray<Int8Type> or NumericArray<Date32Type>.
///
/// Note that convenience aliases are available for all accepted types
/// (for example Int8Array for NumericArray<Int8Type>).
template <typename TYPE>
class NumericArray : public PrimitiveArray {
public:
using TypeClass = TYPE;
using value_type = typename TypeClass::c_type;
using IteratorType = stl::ArrayIterator<NumericArray<TYPE>>;
explicit NumericArray(const std::shared_ptr<ArrayData>& data) {
NumericArray::SetData(data);
}
// Only enable this constructor without a type argument for types without additional
// metadata
template <typename T1 = TYPE>
NumericArray(enable_if_parameter_free<T1, int64_t> length,
const std::shared_ptr<Buffer>& data,
const std::shared_ptr<Buffer>& null_bitmap = NULLPTR,
int64_t null_count = kUnknownNullCount, int64_t offset = 0) {
NumericArray::SetData(ArrayData::Make(TypeTraits<T1>::type_singleton(), length,
{null_bitmap, data}, null_count, offset));
}
NumericArray(std::shared_ptr<DataType> type, int64_t length,
const std::shared_ptr<Buffer>& data,
const std::shared_ptr<Buffer>& null_bitmap = NULLPTR,
int64_t null_count = kUnknownNullCount, int64_t offset = 0) {
NumericArray::SetData(ArrayData::Make(std::move(type), length, {null_bitmap, data},
null_count, offset));
}
const value_type* raw_values() const { return values_; }
value_type Value(int64_t i) const { return values_[i]; }
// For API compatibility with BinaryArray etc.
value_type GetView(int64_t i) const { return values_[i]; }
std::optional<value_type> operator[](int64_t i) const {
return *IteratorType(*this, i);
}
IteratorType begin() const { return IteratorType(*this); }
IteratorType end() const { return IteratorType(*this, length()); }
protected:
NumericArray() : values_(NULLPTR) {}
void SetData(const std::shared_ptr<ArrayData>& data) {
this->PrimitiveArray::SetData(data);
values_ = raw_values_
? (reinterpret_cast<const value_type*>(raw_values_) + data_->offset)
: NULLPTR;
}
const value_type* values_;
};
/// DayTimeArray
/// ---------------------
/// \brief Array of Day and Millisecond values.
class ARROW_EXPORT DayTimeIntervalArray : public PrimitiveArray {
public:
using TypeClass = DayTimeIntervalType;
using IteratorType = stl::ArrayIterator<DayTimeIntervalArray>;
explicit DayTimeIntervalArray(const std::shared_ptr<ArrayData>& data);
DayTimeIntervalArray(const std::shared_ptr<DataType>& type, int64_t length,
const std::shared_ptr<Buffer>& data,
const std::shared_ptr<Buffer>& null_bitmap = NULLPTR,
int64_t null_count = kUnknownNullCount, int64_t offset = 0);
DayTimeIntervalArray(int64_t length, const std::shared_ptr<Buffer>& data,
const std::shared_ptr<Buffer>& null_bitmap = NULLPTR,
int64_t null_count = kUnknownNullCount, int64_t offset = 0);
TypeClass::DayMilliseconds GetValue(int64_t i) const;
TypeClass::DayMilliseconds Value(int64_t i) const { return GetValue(i); }
// For compatibility with Take kernel.
TypeClass::DayMilliseconds GetView(int64_t i) const { return GetValue(i); }
IteratorType begin() const { return IteratorType(*this); }
IteratorType end() const { return IteratorType(*this, length()); }
std::optional<TypeClass::DayMilliseconds> operator[](int64_t i) const {
return *IteratorType(*this, i);
}
int32_t byte_width() const { return sizeof(TypeClass::DayMilliseconds); }
const uint8_t* raw_values() const { return raw_values_ + data_->offset * byte_width(); }
};
/// \brief Array of Month, Day and nanosecond values.
class ARROW_EXPORT MonthDayNanoIntervalArray : public PrimitiveArray {
public:
using TypeClass = MonthDayNanoIntervalType;
using IteratorType = stl::ArrayIterator<MonthDayNanoIntervalArray>;
explicit MonthDayNanoIntervalArray(const std::shared_ptr<ArrayData>& data);
MonthDayNanoIntervalArray(const std::shared_ptr<DataType>& type, int64_t length,
const std::shared_ptr<Buffer>& data,
const std::shared_ptr<Buffer>& null_bitmap = NULLPTR,
int64_t null_count = kUnknownNullCount, int64_t offset = 0);
MonthDayNanoIntervalArray(int64_t length, const std::shared_ptr<Buffer>& data,
const std::shared_ptr<Buffer>& null_bitmap = NULLPTR,
int64_t null_count = kUnknownNullCount, int64_t offset = 0);
TypeClass::MonthDayNanos GetValue(int64_t i) const;
TypeClass::MonthDayNanos Value(int64_t i) const { return GetValue(i); }
// For compatibility with Take kernel.
TypeClass::MonthDayNanos GetView(int64_t i) const { return GetValue(i); }
IteratorType begin() const { return IteratorType(*this); }
IteratorType end() const { return IteratorType(*this, length()); }
std::optional<TypeClass::MonthDayNanos> operator[](int64_t i) const {
return *IteratorType(*this, i);
}
int32_t byte_width() const { return sizeof(TypeClass::MonthDayNanos); }
const uint8_t* raw_values() const { return raw_values_ + data_->offset * byte_width(); }
};
/// @}
} // namespace arrow20
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