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#include "py_iterator.h"
#include "py_cast.h"
#include "py_errors.h"
#include "py_utils.h"
#include <yql/essentials/public/udf/udf_value.h>
#include <yql/essentials/public/udf/udf_value_builder.h>
using namespace NKikimr;
namespace NPython {
//////////////////////////////////////////////////////////////////////////////
// TPyIterator interface
//////////////////////////////////////////////////////////////////////////////
struct TPyIterator
{
PyObject_HEAD;
TPyCastContext::TPtr CastCtx;
const NUdf::TType* ItemType;
TPyCleanupListItem<NUdf::IBoxedValuePtr> Iterator;
inline static TPyIterator* Cast(PyObject* o) {
return reinterpret_cast<TPyIterator*>(o);
}
inline static void Dealloc(PyObject* self) {
delete Cast(self);
}
inline static PyObject* Repr(PyObject* self) {
Y_UNUSED(self);
return PyRepr("<yql.TDictKeysIterator>").Release();
}
static PyObject* New(const TPyCastContext::TPtr& ctx, const NUdf::TType* itemType, NUdf::IBoxedValuePtr&& iterator);
static PyObject* Next(PyObject* self);
};
#if PY_MAJOR_VERSION >= 3
#define Py_TPFLAGS_HAVE_ITER 0
#endif
PyTypeObject PyIteratorType = {
PyVarObject_HEAD_INIT(&PyType_Type, 0)
INIT_MEMBER(tp_name , "yql.TIterator"),
INIT_MEMBER(tp_basicsize , sizeof(TPyIterator)),
INIT_MEMBER(tp_itemsize , 0),
INIT_MEMBER(tp_dealloc , TPyIterator::Dealloc),
#if PY_VERSION_HEX < 0x030800b4
INIT_MEMBER(tp_print , nullptr),
#else
INIT_MEMBER(tp_vectorcall_offset, 0),
#endif
INIT_MEMBER(tp_getattr , nullptr),
INIT_MEMBER(tp_setattr , nullptr),
#if PY_MAJOR_VERSION >= 3
INIT_MEMBER(tp_as_async , nullptr),
#else
INIT_MEMBER(tp_compare , nullptr),
#endif
INIT_MEMBER(tp_repr , TPyIterator::Repr),
INIT_MEMBER(tp_as_number , nullptr),
INIT_MEMBER(tp_as_sequence , nullptr),
INIT_MEMBER(tp_as_mapping , nullptr),
INIT_MEMBER(tp_hash , nullptr),
INIT_MEMBER(tp_call , nullptr),
INIT_MEMBER(tp_str , nullptr),
INIT_MEMBER(tp_getattro , nullptr),
INIT_MEMBER(tp_setattro , nullptr),
INIT_MEMBER(tp_as_buffer , nullptr),
INIT_MEMBER(tp_flags , Py_TPFLAGS_HAVE_ITER),
INIT_MEMBER(tp_doc , "yql.TDictKeysIterator object"),
INIT_MEMBER(tp_traverse , nullptr),
INIT_MEMBER(tp_clear , nullptr),
INIT_MEMBER(tp_richcompare , nullptr),
INIT_MEMBER(tp_weaklistoffset , 0),
INIT_MEMBER(tp_iter , PyObject_SelfIter),
INIT_MEMBER(tp_iternext , TPyIterator::Next),
INIT_MEMBER(tp_methods , nullptr),
INIT_MEMBER(tp_members , nullptr),
INIT_MEMBER(tp_getset , nullptr),
INIT_MEMBER(tp_base , nullptr),
INIT_MEMBER(tp_dict , nullptr),
INIT_MEMBER(tp_descr_get , nullptr),
INIT_MEMBER(tp_descr_set , nullptr),
INIT_MEMBER(tp_dictoffset , 0),
INIT_MEMBER(tp_init , nullptr),
INIT_MEMBER(tp_alloc , nullptr),
INIT_MEMBER(tp_new , nullptr),
INIT_MEMBER(tp_free , nullptr),
INIT_MEMBER(tp_is_gc , nullptr),
INIT_MEMBER(tp_bases , nullptr),
INIT_MEMBER(tp_mro , nullptr),
INIT_MEMBER(tp_cache , nullptr),
INIT_MEMBER(tp_subclasses , nullptr),
INIT_MEMBER(tp_weaklist , nullptr),
INIT_MEMBER(tp_del , nullptr),
INIT_MEMBER(tp_version_tag , 0),
#if PY_MAJOR_VERSION >= 3
INIT_MEMBER(tp_finalize , nullptr),
#endif
#if PY_VERSION_HEX >= 0x030800b1
INIT_MEMBER(tp_vectorcall , nullptr),
#endif
#if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
INIT_MEMBER(tp_print , nullptr),
#endif
};
//////////////////////////////////////////////////////////////////////////////
// TPyPairIterator interface
//////////////////////////////////////////////////////////////////////////////
struct TPyPairIterator
{
PyObject_HEAD;
TPyCastContext::TPtr CastCtx;
const NUdf::TType* KeyType;
const NUdf::TType* PayloadType;
TPyCleanupListItem<NUdf::IBoxedValuePtr> Iterator;
inline static TPyPairIterator* Cast(PyObject* o) {
return reinterpret_cast<TPyPairIterator*>(o);
}
inline static void Dealloc(PyObject* self) {
delete Cast(self);
}
inline static PyObject* Repr(PyObject* self) {
Y_UNUSED(self);
return PyRepr("<yql.TDictIterator>").Release();
}
static PyObject* New(const TPyCastContext::TPtr& ctx, const NUdf::TType* keyType, const NUdf::TType* payloadType, NUdf::IBoxedValuePtr&& iterator);
static PyObject* Next(PyObject* self);
};
PyTypeObject PyPairIteratorType = {
PyVarObject_HEAD_INIT(&PyType_Type, 0)
INIT_MEMBER(tp_name , "yql.TDictIterator"),
INIT_MEMBER(tp_basicsize , sizeof(TPyPairIterator)),
INIT_MEMBER(tp_itemsize , 0),
INIT_MEMBER(tp_dealloc , TPyPairIterator::Dealloc),
#if PY_VERSION_HEX < 0x030800b4
INIT_MEMBER(tp_print , nullptr),
#else
INIT_MEMBER(tp_vectorcall_offset, 0),
#endif
INIT_MEMBER(tp_getattr , nullptr),
INIT_MEMBER(tp_setattr , nullptr),
#if PY_MAJOR_VERSION >= 3
INIT_MEMBER(tp_as_async , nullptr),
#else
INIT_MEMBER(tp_compare , nullptr),
#endif
INIT_MEMBER(tp_repr , TPyPairIterator::Repr),
INIT_MEMBER(tp_as_number , nullptr),
INIT_MEMBER(tp_as_sequence , nullptr),
INIT_MEMBER(tp_as_mapping , nullptr),
INIT_MEMBER(tp_hash , nullptr),
INIT_MEMBER(tp_call , nullptr),
INIT_MEMBER(tp_str , nullptr),
INIT_MEMBER(tp_getattro , nullptr),
INIT_MEMBER(tp_setattro , nullptr),
INIT_MEMBER(tp_as_buffer , nullptr),
INIT_MEMBER(tp_flags , Py_TPFLAGS_HAVE_ITER),
INIT_MEMBER(tp_doc , "yql.TPairIterator object"),
INIT_MEMBER(tp_traverse , nullptr),
INIT_MEMBER(tp_clear , nullptr),
INIT_MEMBER(tp_richcompare , nullptr),
INIT_MEMBER(tp_weaklistoffset , 0),
INIT_MEMBER(tp_iter , PyObject_SelfIter),
INIT_MEMBER(tp_iternext , TPyPairIterator::Next),
INIT_MEMBER(tp_methods , nullptr),
INIT_MEMBER(tp_members , nullptr),
INIT_MEMBER(tp_getset , nullptr),
INIT_MEMBER(tp_base , nullptr),
INIT_MEMBER(tp_dict , nullptr),
INIT_MEMBER(tp_descr_get , nullptr),
INIT_MEMBER(tp_descr_set , nullptr),
INIT_MEMBER(tp_dictoffset , 0),
INIT_MEMBER(tp_init , nullptr),
INIT_MEMBER(tp_alloc , nullptr),
INIT_MEMBER(tp_new , nullptr),
INIT_MEMBER(tp_free , nullptr),
INIT_MEMBER(tp_is_gc , nullptr),
INIT_MEMBER(tp_bases , nullptr),
INIT_MEMBER(tp_mro , nullptr),
INIT_MEMBER(tp_cache , nullptr),
INIT_MEMBER(tp_subclasses , nullptr),
INIT_MEMBER(tp_weaklist , nullptr),
INIT_MEMBER(tp_del , nullptr),
INIT_MEMBER(tp_version_tag , 0),
#if PY_MAJOR_VERSION >= 3
INIT_MEMBER(tp_finalize , nullptr),
#endif
#if PY_VERSION_HEX >= 0x030800b1
INIT_MEMBER(tp_vectorcall , nullptr),
#endif
#if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
INIT_MEMBER(tp_print , nullptr),
#endif
};
//////////////////////////////////////////////////////////////////////////////
// TPyIterator implementation
//////////////////////////////////////////////////////////////////////////////
PyObject* TPyIterator::New(const TPyCastContext::TPtr& ctx, const NUdf::TType* itemType, NUdf::IBoxedValuePtr&& iterator)
{
TPyIterator* dictIter = new TPyIterator;
PyObject_INIT(dictIter, &PyIteratorType);
dictIter->CastCtx = ctx;
dictIter->ItemType = itemType;
dictIter->Iterator.Set(ctx->PyCtx, iterator);
return reinterpret_cast<PyObject*>(dictIter);
}
PyObject* TPyIterator::Next(PyObject* self)
{
PY_TRY {
const auto iter = Cast(self);
NUdf::TUnboxedValue item;
if (NUdf::TBoxedValueAccessor::Next(*iter->Iterator.Get(), item)) {
return (iter->ItemType ? ToPyObject(iter->CastCtx, iter->ItemType, item) : PyCast<ui64>(item.Get<ui64>())).Release();
}
return nullptr;
} PY_CATCH(nullptr)
}
//////////////////////////////////////////////////////////////////////////////
// TPyPairIterator implementation
//////////////////////////////////////////////////////////////////////////////
PyObject* TPyPairIterator::New(const TPyCastContext::TPtr& ctx, const NUdf::TType* keyType, const NUdf::TType* payloadType, NUdf::IBoxedValuePtr&& iterator)
{
TPyPairIterator* dictIter = new TPyPairIterator;
PyObject_INIT(dictIter, &PyPairIteratorType);
dictIter->CastCtx = ctx;
dictIter->KeyType = keyType;
dictIter->PayloadType = payloadType;
dictIter->Iterator.Set(ctx->PyCtx, iterator);
return reinterpret_cast<PyObject*>(dictIter);
}
PyObject* TPyPairIterator::Next(PyObject* self)
{
PY_TRY {
const auto iter = Cast(self);
NUdf::TUnboxedValue k, v;
if (NUdf::TBoxedValueAccessor::NextPair(*iter->Iterator.Get(), k, v)) {
const TPyObjectPtr key = iter->KeyType ?
ToPyObject(iter->CastCtx, iter->KeyType, k):
PyCast<ui64>(k.Get<ui64>());
const TPyObjectPtr value = ToPyObject(iter->CastCtx, iter->PayloadType, v);
return PyTuple_Pack(2, key.Get(), value.Get());
}
return nullptr;
} PY_CATCH(nullptr)
}
//////////////////////////////////////////////////////////////////////////////
TPyObjectPtr ToPyIterator(
const TPyCastContext::TPtr& castCtx,
const NUdf::TType* itemType,
const NUdf::TUnboxedValuePod& value)
{
return TPyIterator::New(castCtx, itemType, value.AsBoxed());
}
TPyObjectPtr ToPyIterator(
const TPyCastContext::TPtr& castCtx,
const NUdf::TType* keyType,
const NUdf::TType* payloadType,
const NUdf::TUnboxedValuePod& value)
{
return TPyPairIterator::New(castCtx, keyType, payloadType, value.AsBoxed());
}
} // namspace NPython
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