serialization: do any N-tuple
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jeffro256
parent
c8214782fb
commit
d6609b83d6
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@ -1,4 +1,4 @@
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// Copyright (c) 2014-2023, The Monero Project
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// Copyright (c) 2014-2024, The Monero Project
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//
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// All rights reserved.
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//
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@ -29,7 +29,7 @@
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#pragma once
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#include <memory>
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#include <tuple>
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#include "serialization.h"
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namespace serialization
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@ -51,119 +51,71 @@ namespace serialization
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}
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}
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template <template <bool> class Archive, class E0, class E1, class E2>
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inline bool do_serialize(Archive<false>& ar, std::tuple<E0,E1,E2>& p)
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template <size_t I, bool BackwardsCompat, bool W, template <bool> class Archive, typename... Ts>
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bool do_serialize_tuple_nth(Archive<W>& ar, std::tuple<Ts...>& v)
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{
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size_t cnt;
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static constexpr const size_t tuple_size = std::tuple_size<std::tuple<Ts...>>();
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static_assert(I <= tuple_size, "bad call");
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if constexpr (I == 0)
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{
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// If BackwardsCompat is true, we serialize the size of 3-tuples and 4-tuples
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if constexpr (BackwardsCompat && (tuple_size == 3 || tuple_size == 4))
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{
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size_t cnt = tuple_size;
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ar.begin_array(cnt);
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if (!ar.good())
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if (cnt != tuple_size)
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return false;
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if (cnt != 3)
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return false;
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if (!::serialization::detail::serialize_tuple_element(ar, std::get<0>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.delimit_array();
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if (!::serialization::detail::serialize_tuple_element(ar, std::get<1>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.delimit_array();
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if (!::serialization::detail::serialize_tuple_element(ar, std::get<2>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.end_array();
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return true;
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}
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template <template <bool> class Archive, class E0, class E1, class E2>
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inline bool do_serialize(Archive<true>& ar, std::tuple<E0,E1,E2>& p)
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else
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{
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ar.begin_array(3);
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if (!ar.good())
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return false;
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if(!::serialization::detail::serialize_tuple_element(ar, std::get<0>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.delimit_array();
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if(!::serialization::detail::serialize_tuple_element(ar, std::get<1>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.delimit_array();
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if(!::serialization::detail::serialize_tuple_element(ar, std::get<2>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.end_array();
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return true;
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ar.begin_array();
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}
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template <template <bool> class Archive, class E0, class E1, class E2, class E3>
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inline bool do_serialize(Archive<false>& ar, std::tuple<E0,E1,E2,E3>& p)
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}
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else if constexpr (I < tuple_size)
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{
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size_t cnt;
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ar.begin_array(cnt);
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if (!ar.good())
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return false;
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if (cnt != 4)
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return false;
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if (!::serialization::detail::serialize_tuple_element(ar, std::get<0>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.delimit_array();
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if (!::serialization::detail::serialize_tuple_element(ar, std::get<1>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.delimit_array();
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if (!::serialization::detail::serialize_tuple_element(ar, std::get<2>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.delimit_array();
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if (!::serialization::detail::serialize_tuple_element(ar, std::get<3>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.end_array();
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return true;
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}
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template <template <bool> class Archive, class E0, class E1, class E2, class E3>
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inline bool do_serialize(Archive<true>& ar, std::tuple<E0,E1,E2,E3>& p)
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if constexpr (I == tuple_size)
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{
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ar.begin_array(4);
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if (!ar.good())
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return false;
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if(!::serialization::detail::serialize_tuple_element(ar, std::get<0>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.delimit_array();
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if(!::serialization::detail::serialize_tuple_element(ar, std::get<1>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.delimit_array();
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if(!::serialization::detail::serialize_tuple_element(ar, std::get<2>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.delimit_array();
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if(!::serialization::detail::serialize_tuple_element(ar, std::get<3>(p)))
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return false;
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if (!ar.good())
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return false;
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ar.end_array();
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return true;
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return ar.good();
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}
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else
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{
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if (!::serialization::detail::serialize_tuple_element(ar, std::get<I>(v))
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|| !ar.good())
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return false;
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return do_serialize_tuple_nth<I + 1, BackwardsCompat>(ar, v);
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}
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}
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template <bool BackwardsCompat, bool W, template <bool> class Archive, typename... Ts>
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bool do_serialize_tuple(Archive<W>& ar, std::tuple<Ts...>& v)
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{
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return do_serialize_tuple_nth<0, BackwardsCompat>(ar, v);
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}
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template <bool W, template <bool> class Archive, typename... Ts>
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bool do_serialize(Archive<W>& ar, std::tuple<Ts...>& v)
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{
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return do_serialize_tuple<true>(ar, v);
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}
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#define TUPLE_COMPACT_FIELDS(v) \
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do { \
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if (!do_serialize_tuple<false>(ar, v) || !ar.good()) \
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return false; \
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} while (0);
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#define TUPLE_COMPACT_FIELD_N(t, v) \
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do { \
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ar.tag(t); \
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TUPLE_COMPACT_FIELDS(v); \
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} while (0);
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#define TUPLE_COMPACT_FIELD(f) TUPLE_COMPACT_FIELD_N(#f, f)
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#define TUPLE_COMPACT_FIELD_F(f) TUPLE_COMPACT_FIELD_N(#f, v.f)
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@ -56,6 +56,11 @@ struct Struct
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int32_t a;
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int32_t b;
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char blob[8];
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bool operator==(const Struct &other) const
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{
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return a == other.a && b == other.b && 0 == memcmp(blob, other.blob, sizeof(blob));
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}
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};
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template <class Archive>
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@ -1207,3 +1212,90 @@ TEST(Serialization, adl_free_function)
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const std::string expected = "{\"custom_fieldname\": " + std::to_string(msg.size()) + '"' + epee::string_tools::buff_to_hex_nodelimer(msg) + "\"}";
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EXPECT_EQ(expected, ss.str());
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}
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using Tuple3 = std::tuple<uint16_t, std::string, uint64_t>;
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using Tuple4 = std::tuple<int32_t, std::string, uint64_t, Struct>;
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TEST(Serialization, tuple_3_4_backwards_compatibility)
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{
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std::string serialized;
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////////////////////////////////////////
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Tuple3 t3{1876, "Hullabaloo", 1963};
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EXPECT_TRUE(::serialization::dump_binary(t3, serialized));
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EXPECT_EQ("0354070a48756c6c6162616c6f6fab0f",
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epee::string_tools::buff_to_hex_nodelimer(serialized));
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Tuple3 t3_recovered;
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EXPECT_TRUE(::serialization::parse_binary(serialized, t3_recovered));
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EXPECT_EQ(t3, t3_recovered);
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/////////////////////////////////////////
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Tuple4 t4{1999, "Caneck Caneck", (uint64_t)-1, {20229, 242, {1, 1, 2, 3, 5, 8, 13, 21}}};
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EXPECT_TRUE(::serialization::dump_binary(t4, serialized));
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EXPECT_EQ("04cf0700000d43616e65636b2043616e65636bffffffffffffffffff01054f0000f20000000101020305080d15",
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epee::string_tools::buff_to_hex_nodelimer(serialized));
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Tuple4 t4_recovered;
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EXPECT_TRUE(::serialization::parse_binary(serialized, t4_recovered));
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EXPECT_EQ(t4, t4_recovered);
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}
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struct Tupler
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{
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std::tuple<> t0;
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std::tuple<int8_t> t1;
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std::tuple<uint8_t, int16_t> t2;
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Tuple3 t3_backcompat;
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Tuple3 t3_compact;
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Tuple4 t4_backcompat;
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Tuple4 t4_compact;
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std::tuple<uint32_t, std::string, bool, int64_t, Struct> t5;
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BEGIN_SERIALIZE_OBJECT()
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FIELD(t0)
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FIELD(t1)
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FIELD(t2)
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FIELD(t3_backcompat)
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TUPLE_COMPACT_FIELD(t3_compact)
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FIELD(t4_backcompat)
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TUPLE_COMPACT_FIELD(t4_compact)
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TUPLE_COMPACT_FIELD(t5)
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END_SERIALIZE()
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};
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bool operator==(const Tupler &a, const Tupler &b)
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{
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return a.t0 == b.t0 && a.t1 == b.t1 && a.t2 == b.t2 && a.t3_backcompat == b.t3_backcompat &&
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a.t3_compact == b.t3_compact && a.t4_backcompat == b.t4_backcompat && a.t5 == b.t5;
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}
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TEST(Serialization, tuple_many_tuples)
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{
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Tupler tupler{
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{},
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{69},
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{42, 420},
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{1876, "Hullabaloo", 1963},
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{1876, "Hullabaloo", 1963},
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{1999, "Caneck Caneck", (uint64_t)-1, {20229, 242, {1, 1, 2, 3, 5, 8, 13, 21}}},
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{1999, "Caneck Caneck", (uint64_t)-1, {20229, 242, {1, 1, 2, 3, 5, 8, 13, 21}}},
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{72982, "He is now rising from affluence to poverty.", false, 256,
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{
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13, 37, { 1, 1, 1, 2, 3, 7, 11, 26 }
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}
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}
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};
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std::string serialized;
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EXPECT_TRUE(::serialization::dump_binary(tupler, serialized));
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Tupler tupler_recovered;
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EXPECT_TRUE(::serialization::parse_binary(serialized, tupler_recovered));
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EXPECT_EQ(tupler, tupler_recovered);
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}
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