binaryany.cxx

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#include <sal/config.h>
 
#include <cassert>
#include <utility>
 
#include <typelib/typeclass.h>
#include <typelib/typedescription.hxx>
#include <uno/any2.h>
 
#include "binaryany.hxx"
 
namespace binaryurp {
 
namespace {
 
// Cf. com::sun::star::uno::Any move ctor in
// include/com/sun/star/uno/Any.hxx:
void moveInternals(uno_Any & from, uno_Any & to) {
    uno_any_construct(&to, nullptr, nullptr, nullptr);
    std::swap(from.pType, to.pType);
    std::swap(from.pData, to.pData);
    std::swap(from.pReserved, to.pReserved);
    if (to.pData == &from.pReserved) {
        to.pData = &to.pReserved;
    }
    // This leaves to.pData (where "to" is now VOID) dangling to somewhere (cf.
    // CONSTRUCT_EMPTY_ANY, cppu/source/uno/prim.hxx), but what's relevant is
    // only that it isn't a nullptr (as e.g. >>= -> uno_type_assignData ->
    // _assignData takes a null pSource to mean "construct a default value").
}
 
}
 
BinaryAny::BinaryAny() noexcept {
    uno_any_construct(&data_, nullptr, nullptr, nullptr);
}
 
BinaryAny::BinaryAny(css::uno::TypeDescription const & type, void * value)
    noexcept
{
    assert(type.is());
    uno_any_construct(&data_, value, type.get(), nullptr);
}
 
BinaryAny::BinaryAny(uno_Any const & raw) noexcept {
    assert(raw.pType != nullptr);
    data_.pType = raw.pType;
    typelib_typedescriptionreference_acquire(data_.pType);
    data_.pData = raw.pData == &raw.pReserved ? &data_.pReserved : raw.pData;
    data_.pReserved = raw.pReserved;
}
 
BinaryAny::BinaryAny(BinaryAny const & other) noexcept {
    uno_type_any_construct(&data_, other.data_.pData, other.data_.pType, nullptr);
}
 
BinaryAny::BinaryAny(BinaryAny && other) noexcept {
    moveInternals(other.data_, data_);
}
 
BinaryAny::~BinaryAny() noexcept {
    uno_any_destruct(&data_, nullptr);
}
 
BinaryAny & BinaryAny::operator =(BinaryAny const & other) noexcept {
    if (&other != this) {
        uno_type_any_assign(&data_, other.data_.pData, other.data_.pType, nullptr, nullptr);
    }
    return *this;
}
 
BinaryAny & BinaryAny::operator =(BinaryAny && other) noexcept {
    uno_any_destruct(&data_, nullptr);
    moveInternals(other.data_, data_);
    return *this;
}
 
css::uno::TypeDescription BinaryAny::getType() const noexcept {
    return css::uno::TypeDescription(data_.pType);
}
 
void * BinaryAny::getValue(css::uno::TypeDescription const & type) const
    noexcept
{
    assert(type.is());
    assert(
        type.get()->eTypeClass == typelib_TypeClass_ANY ||
         type.equals(css::uno::TypeDescription(data_.pType)));
    return type.get()->eTypeClass == typelib_TypeClass_ANY
        ? &data_ : data_.pData;
}
 
}
 
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