core/utils/Buffer.h

#ifndef CORE_BUFFER_H
#define CORE_BUFFER_H

#include "utils/Check.h"

namespace Core {
    class Buffer final {
        int length;
        int capacity;
        char* buffer;

    public:
        Buffer(int initialSize = 32);
        Buffer(const Buffer& other) = delete;
        Buffer(Buffer&& other);
        ~Buffer();
        Buffer& operator=(const Buffer& other) = delete;
        Buffer& operator=(Buffer&& other);

        // returns true on error and calls the error callback
        check_return bool copyFrom(const Buffer& other);

        // returns true on error and calls the error callback
        check_return bool add(const void* data, int size);

        // returns true on error and calls the error callback
        template<typename T>
        check_return bool add(const T& t) {
            return add(&t, sizeof(T));
        }

        int getLength() const;
        operator const char*() const;
        const char* getData() const;

        void clear();

    private:
        void swap(Buffer& other);
    };
}

#endif