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Style is not happy with orphan headers

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Raúl Marín 2024-01-19 14:28:18 +01:00
parent f6f30eb990
commit 47df16f896
1 changed files with 0 additions and 147 deletions
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src/Core/FieldHash.h
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@ -1,147 +0,0 @@
#pragma once
#include <Core/Field.h>
#include <Common/HashTable/Hash.h>
#include <bit>
#include <functional>
namespace
{
static_assert(sizeof(size_t) == 4 || sizeof(size_t) == 8);
using size_t_equivalent = std::conditional_t<sizeof(size_t) == 4, UInt32, UInt64>;
inline size_t hash64(UInt64 x)
{
return static_cast<size_t>(intHash64(x));
}
inline size_t hash32(UInt32 x)
{
/// It's ok to just treat it as 64bits
return static_cast<size_t>(hash64(x));
}
inline size_t hash_size_t(size_t x)
{
if constexpr (sizeof(size_t) == 4)
return hash32(std::bit_cast<size_t_equivalent>(x));
else
return hash64(std::bit_cast<size_t_equivalent>(x));
}
inline size_t combine_hashes(size_t h1, size_t h2)
{
return hash_size_t(h1) ^ h2;
}
}
namespace std
{
/// Extends std::hash to support DB::Field so it can be used in std::unordered_map and similar structures
template <>
struct hash<DB::Field>
{
size_t operator()(const DB::Field & field) const noexcept
{
using Which = DB::Field::Types::Which;
size_t type_hash = ::hash32(field.getType());
switch (field.getType())
{
case Which::Null:
return 0;
case Which::Bool:
[[fallthrough]];
case Which::UInt64:
return ::combine_hashes(type_hash, ::hash64(field.get<UInt64>()));
case Which::IPv6:
[[fallthrough]];
case Which::UUID:
[[fallthrough]];
case Which::UInt128: {
UInt128 n = field.get<UInt128>();
size_t h1 = ::hash64(n.items[0]);
size_t h2 = ::hash64(n.items[1]);
return ::combine_hashes(type_hash, ::combine_hashes(h1, h2));
}
case Which::UInt256: {
UInt256 n = field.get<UInt256>();
size_t h1 = ::hash64(n.items[0]);
size_t h2 = ::hash64(n.items[1]);
size_t h3 = ::hash64(n.items[2]);
size_t h4 = ::hash64(n.items[3]);
return ::combine_hashes(::combine_hashes(type_hash, ::combine_hashes(h1, h2)), ::combine_hashes(h3, h4));
}
case Which::Int64: {
UInt64 n = std::bit_cast<UInt64>(&field.get<Int64>());
return ::combine_hashes(type_hash, n);
}
case Which::Int128: {
UInt128 n = std::bit_cast<UInt128>(field.get<Int128>());
size_t h1 = ::hash64(n.items[0]);
size_t h2 = ::hash64(n.items[1]);
return ::combine_hashes(type_hash, ::combine_hashes(h1, h2));
}
case Which::Int256: {
UInt256 n = std::bit_cast<UInt256>(field.get<Int256>());
size_t h1 = ::hash64(n.items[0]);
size_t h2 = ::hash64(n.items[1]);
size_t h3 = ::hash64(n.items[2]);
size_t h4 = ::hash64(n.items[3]);
return ::combine_hashes(::combine_hashes(type_hash, ::combine_hashes(h1, h2)), ::combine_hashes(h3, h4));
}
case Which::IPv4: {
UInt32 n = field.get<DB::IPv4>();
return ::combine_hashes(type_hash, ::hash32(n));
}
case Which::Float64:
return ::combine_hashes(type_hash, std::hash<Float64>{}(field.get<Float64>()));
case Which::String:
return ::combine_hashes(type_hash, std::hash<String>{}(field.get<String>()));
case Which::Array: {
auto const & array = field.get<DB::Array>();
size_t res = type_hash;
for (const auto & e : array)
res = ::combine_hashes(res, std::hash<DB::Field>{}(e));
return res;
}
case Which::Tuple: {
auto const & tuple = field.get<DB::Tuple>();
size_t res = type_hash;
for (const auto & e : tuple)
res = ::combine_hashes(res, std::hash<DB::Field>{}(e));
return res;
}
case Which::Map: {
auto const & map = field.get<DB::Map>();
size_t res = type_hash;
for (const auto & e : map)
res = ::combine_hashes(res, std::hash<DB::Field>{}(e));
return res;
}
case Which::Object: {
auto const & object = field.get<DB::Object>();
size_t res = type_hash;
for (const auto & e : object)
res = ::combine_hashes(res, ::combine_hashes(std::hash<String>{}(e.first), std::hash<DB::Field>{}(e.second)));
return res;
}
case Which::Decimal32:
return ::combine_hashes(type_hash, std::hash<DB::Decimal32>{}(field.get<DB::Decimal32>()));
case Which::Decimal64:
return ::combine_hashes(type_hash, std::hash<DB::Decimal64>{}(field.get<DB::Decimal64>()));
case Which::Decimal128:
return ::combine_hashes(type_hash, std::hash<DB::Decimal128>{}(field.get<DB::Decimal128>()));
case Which::Decimal256:
return ::combine_hashes(type_hash, std::hash<DB::Decimal256>{}(field.get<DB::Decimal256>()));
case Which::AggregateFunctionState: {
auto const & agg = field.get<DB::AggregateFunctionStateData>();
return ::combine_hashes(type_hash, ::combine_hashes(std::hash<String>{}(agg.name), std::hash<String>{}(agg.data)));
}
case Which::CustomType:
return ::combine_hashes(type_hash, std::hash<String>{}(field.get<DB::CustomType>().toString()));
}
}
};
}