internal static void NpyArray_CopySwapFunc(ICopyHelper helper, VoidPtr dest, VoidPtr Source, bool swap, NpyArray arr)
{
if (arr == null)
{
return;
}
if (NpyArray_HASFIELDS(arr))
{
NpyDict_KVPair KVPair = new NpyDict_KVPair();
NpyArray_Descr descr;
NpyDict_Iter pos = new NpyDict_Iter();
descr = arr.descr;
NpyDict_IterInit(pos);
while (NpyDict_IterNext(descr.fields, pos, KVPair))
{
NpyArray_DescrField value = KVPair.value as NpyArray_DescrField;
string key = KVPair.key as string;
if (null != value.title && key.CompareTo(value.title) != 0)
{
continue;
}
arr.descr = value.descr;
MemCopy.GetMemcopyHelper(dest).copyswap(dest + value.offset, Source + value.offset, swap);
}
arr.descr = descr;
return;
}
if (swap && arr.descr.subarray != null)
{
NpyArray_Descr descr = new NpyArray_Descr(NPY_TYPES.NPY_OBJECT);
NpyArray_Descr newDescr = null;
npy_intp num;
int itemsize;
descr = arr.descr;
newDescr = descr.subarray._base;
arr.descr = newDescr;
itemsize = newDescr.elsize;
num = descr.elsize / itemsize;
_default_copyswap(dest, itemsize, Source, itemsize, num, swap, arr);
arr.descr = descr;
return;
}
if (Source != null)
{
helper.memcpy(dest.data_offset, Source.data_offset, NpyArray_ITEMSIZE(arr));
}
if (swap)
{
swapvalue(dest, dest.data_offset, NpyArray_DIVSIZE(arr));
}
return;
}
/// <summary>
/// Initializes a new instance of the <see cref="Copier{T}" /> class.
/// </summary>
public Copier(
ICopyRegistrations <T> copyRegistrations,
ICopyHelper copyHelper,
ICopyHelperRegistrationFactory factory)
{
copyRegistrations.NotNull(nameof(copyRegistrations));
copyHelper.NotNull(nameof(copyHelper));
factory.NotNull(nameof(factory));
var registrations = factory.Create <T>();
copyRegistrations.DoRegistrations(registrations);
this.operations = registrations.EndRegistrations();
this.copyHelper = copyHelper;
}