metacall/mc_serial-inl.hpp

//
// Copyright (c) 2011 Alex Yatskov
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
//

namespace metacall {


//
// TypeReader
//

template <typename T, bool G>
struct TypeReader {
    static bool read(Deserializer* deserializer, T* data) {
        return deserialize(deserializer, data);
    }
};

template <typename T>
struct TypeReader<T, false> {
    static bool read(Deserializer* deserializer, T* data) {
        const T* const temp = reinterpret_cast<const T*>(deserializer->readRaw(sizeof(T)));
        if (temp != NULL) {
            *data = *temp;
        }
        return temp != NULL;
    }
};

template <typename T>
bool Deserializer::read(T* data) {
    return TypeReader<T, IsDeserializable<T>::Value>::read(this, data);
}


//
// TypeWriter
//

template <typename T, bool G>
struct TypeWriter {
    static bool write(Serializer* serializer, const T& data) {
        return serialize(serializer, data);
    }
};

template <typename T>
struct TypeWriter<T, false> {
    static bool write(Serializer* serializer, const T& data) {
        return serializer->writeRaw(&data, sizeof(T));
    }
};

template <typename T>
bool Serializer::write(const T& data) {
    return TypeWriter<T, IsSerializable<T>::Value>::write(this, data);
}


//
// Serializers
//

template <typename T>
bool serialize(Serializer* serializer, const ArrayWriter<T>& writer) {
    serializer->write(writer.count);

    for (int i = 0; i < writer.count; ++i) {
        serializer->write(writer.data[i]);
    }

    return true;
}

template <typename T>
bool deserialize(Deserializer* deserializer, ArrayReader<T>* reader) {
    reader->clear();

    if (!deserializer->read(&reader->count)) {
        return false;
    }

    reader->data = new T[reader->count];

    for (int i = 0; i < reader->count; ++i) {
        if (!deserializer->read(reader->data + i)) {
            reader->clear();
            return false;
        }
    }

    return true;
}


}