Null.cpp

/*
** libutil++
** $Id: Null.cpp 1702 2016-08-13 23:26:06Z sella $
** Copyright (c) 2011-2016 Digital Genesis, LLC. All Rights Reserved.
** Released under the LGPL Version 2.1 License.
** http://www.digitalgenesis.com
*/

static const char rcsid[] __attribute__((used)) = "$Id: Null.cpp 1702 2016-08-13 23:26:06Z sella $";

#include "Null.h"
#include "../util/CommonMacro.h"

using namespace sella::variant;

Null::Null() throw () : Nullable() { }

Null::Null(const Null &other) throw () : Nullable() { } 

Null& Null::operator=(const Null &other) throw () {
        return *this;
}

Null::~Null() throw () { }

void Null::msgpack(sella::util::MessagePack &mpack, uint32_t &offset) const throw (TypeCastException) {
        uint32_t c;

        c = mpack.append(offset);

        offset += c;

        if (UNLIKELY(c == 0)) {
                THROW(TypeCastException, "Failed to append null at offset %d (buffer length: %d)", offset, mpack.length());
        }
}

void Null::msgpackBufferSize(size_t &size) const throw () {
        size += 1;
}

std::string Null::str(int type) const throw () {
        std::string output;

        switch (type) {
                case JSON:
                case CJSON:
                        output = "null";
                        break;

                case XML:
                        output = "<root null=\"true\" />";
                        break;

                case CSV:
                        output = "\\N";
                        break;
        }

        return output;
}

bool Null::isType(const char *value, size_t size) throw () {
        return (size == 4 && strncmp(value, "null", size) == 0);
}

/*
** vim: noet ts=3 sw=3
*/