// 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.

#pragma once

#include <stdint.h>

namespace doris {

class StructValue {

public:

    StructValue() = default;

    explicit StructValue(uint32_t size) : _values(nullptr), _size(size), _has_null(false) {}

    StructValue(void** values, uint32_t size) : _values(values), _size(size), _has_null(false) {}

    StructValue(void** values, uint32_t size, bool has_null)

            : _values(values), _size(size), _has_null(has_null) {}

    //void to_struct_val(StructVal* val) const;

    //static StructValue from_struct_val(const StructVal& val);

    uint32_t size() const { return _size; }

    void set_size(uint32_t size) { _size = size; }

    bool has_null() const { return _has_null; }

    void set_has_null(bool has_null) { _has_null = has_null; }

    bool is_null_at(uint32_t index) const {

        return this->_has_null && this->_values[index] == nullptr;

    }

    void shallow_copy(const StructValue* other);

    const void** values() const { return const_cast<const void**>(_values); }

    void** mutable_values() { return _values; }

    void set_values(void** values) { _values = values; }

    const void* child_value(uint32_t index) const { return _values[index]; }

    void* mutable_child_value(uint32_t index) { return _values[index]; }

    void set_child_value(void* value, uint32_t index) { _values[index] = value; }

private:

    // pointer to the start of the vector of children pointers. These pointers are

    // point to children values where a null pointer means that this child is NULL.

    void** _values = nullptr;

    // the number of values in this struct value.

    uint32_t _size;

    // child has no null value if has_null is false.

    // child may has null value if has_null is true.

    bool _has_null;

};

} // namespace doris