packing.hh

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#ifndef __TYPELIB_PACKING_H__
#define __TYPELIB_PACKING_H__

#include <stdexcept>

namespace Typelib
{
    class Compound;
    class Field;
    class Type;

    namespace Packing
    {
        struct PackingUnknown : std::runtime_error
        {
            PackingUnknown(std::string const& what)
                : std::runtime_error(what) {}
        };

        struct FoundNullStructure : public PackingUnknown
        {
            FoundNullStructure()
                : PackingUnknown("queried the packing of a null type") {}
        };
        struct FoundUnion : public PackingUnknown
        {
            FoundUnion()
                : PackingUnknown("queried the packing of an union") {}
        };

        int getOffsetOf(const Field& last_field, const Type& append_field, size_t packing);

        int getOffsetOf(Compound const& last_field, const Type& append_field, size_t packing);

        int getOffsetOf(Compound const& compound, Type const& append);
        int getOffsetOf(Field const& last_field, Type const& append);
        int getSizeOfCompound(Compound const& compound);
    }
};

#endif