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#include "node.h"
#include "hash.h"
#include <yql/essentials/public/udf/udf_type_ops.h>
namespace NYql::NDom {
using namespace NUdf;
namespace {
THashType HashList(const NUdf::TUnboxedValuePod x) {
THashType hash = 0ULL;
if (x.IsBoxed()) {
if (const auto elements = x.GetElements()) {
const auto size = x.GetListLength();
for (ui32 i = 0U; i < size; ++i) {
hash = CombineHashes(hash, HashDom(elements[i]));
}
} else {
const auto it = x.GetListIterator();
for (TUnboxedValue v; it.Next(v); hash = CombineHashes(hash, HashDom(v)))
continue;
}
}
return hash;
}
THashType HashDict(const NUdf::TUnboxedValuePod x) {
THashType hash = 0ULL;
if (x.IsBoxed()) {
const auto it = x.GetDictIterator();
for (TUnboxedValue k, v; it.NextPair(k, v);) {
hash = CombineHashes(hash, CombineHashes(GetStringHash(k), HashDom(v)));
}
}
return hash;
}
bool EquateLists(const NUdf::TUnboxedValuePod x, const NUdf::TUnboxedValuePod y) {
if (x.IsBoxed() && y.IsBoxed()) {
const auto ex = x.GetElements();
const auto ey = y.GetElements();
if (ex && ey) {
const auto size = x.GetListLength();
if (size != y.GetListLength()) {
return false;
}
for (ui32 i = 0U; i < size; ++i) {
if (!EquateDoms(ex[i], ey[i]))
return false;
}
} else {
const auto itx = x.GetListIterator();
const auto ity = y.GetListIterator();
for (TUnboxedValue vx, vy; itx.Next(vx);) {
if (!ity.Next(vy))
return false;
if (!EquateDoms(vx, vy))
return false;
}
}
return true;
}
return x.IsBoxed() == y.IsBoxed();
}
bool EquateDicts(const NUdf::TUnboxedValuePod x, const NUdf::TUnboxedValuePod y) {
if (x.IsBoxed() && y.IsBoxed()) {
const auto size = x.GetDictLength();
if (size != y.GetDictLength()) {
return false;
}
const auto xr = static_cast<const TPair*>(x.GetResource());
const auto yr = static_cast<const TPair*>(y.GetResource());
// clone dict as attrnode
if (xr && yr) {
for (ui32 i = 0U; i < size; ++i) {
if (!EquateStrings(xr[i].first, yr[i].first))
return false;
if (!EquateDoms(xr[i].second, yr[i].second))
return false;
}
} else {
const auto it = x.GetDictIterator();
for (TUnboxedValue k, v; it.NextPair(k, v);) {
if (auto l = y.Lookup(k))
if (EquateDoms(v, l.GetOptionalValue()))
continue;
return false;
}
}
return true;
}
return x.IsBoxed() == y.IsBoxed();
}
}
THashType HashDom(const NUdf::TUnboxedValuePod x) {
switch (const auto type = GetNodeType(x); type) {
case ENodeType::Double:
return CombineHashes(THashType(type), GetFloatHash<double>(x));
case ENodeType::Uint64:
return CombineHashes(THashType(type), GetIntegerHash<ui64>(x));
case ENodeType::Int64:
return CombineHashes(THashType(type), GetIntegerHash<i64>(x));
case ENodeType::Bool:
return CombineHashes(THashType(type), std::hash<bool>()(x.Get<bool>()));
case ENodeType::String:
return CombineHashes(THashType(type), GetStringHash(x));
case ENodeType::Entity:
return CombineHashes(THashType(type), THashType(~0ULL));
case ENodeType::List:
return CombineHashes(THashType(type), HashList(x));
case ENodeType::Dict:
return CombineHashes(THashType(type), HashDict(x));
case ENodeType::Attr:
return CombineHashes(THashType(type), CombineHashes(HashDict(x), HashDom(x.GetVariantItem().Release())));
}
}
bool EquateDoms(const NUdf::TUnboxedValuePod x, const NUdf::TUnboxedValuePod y) {
if (const auto type = GetNodeType(x); type == GetNodeType(y)) {
switch (type) {
case ENodeType::Double:
return EquateFloats<double>(x, y);
case ENodeType::Uint64:
return EquateIntegers<ui64>(x, y);
case ENodeType::Int64:
return EquateIntegers<i64>(x, y);
case ENodeType::Bool:
return x.Get<bool>() == y.Get<bool>();
case ENodeType::String:
return EquateStrings(x, y);
case ENodeType::Entity:
return true;
case ENodeType::List:
return EquateLists(x, y);
case ENodeType::Dict:
return EquateDicts(x, y);
case ENodeType::Attr:
return EquateDicts(x, y) && EquateDoms(x.GetVariantItem().Release(), y.GetVariantItem().Release());
}
}
return false;
}
}
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