From aa844899c937bde5d2b24f276b59997e5b668bde Mon Sep 17 00:00:00 2001 From: Abseil Team Date: Thu, 8 Aug 2019 10:56:58 -0700 Subject: Creation of LTS branch "lts_2019_08_08" - 9ee91d3e430fb33a4590486573792eb0fa146c2d Export of internal Abseil changes by Abseil Team - 8efba58a3b656e9b41fb0471ae6453425a61c520 Export of internal Abseil changes by Abseil Team - b49b8d16b67ec6912899684b732e6367f258cfdb Export of internal Abseil changes by Abseil Team - 67222ffc4c83d918ce8395aa61769eeb77df4c4d Export of internal Abseil changes by Abseil Team - c5c4db4f5191fe5e76cbf68dcc71fb28702f7d2b Export of internal Abseil changes by Abseil Team - 14550beb3b7b97195e483fb74b5efb906395c31e Export of internal Abseil changes. by Abseil Team - 52e88ee56b72cf32bc66534d942c7398ce481331 Export of internal Abseil changes. by Abseil Team - 36d37ab992038f52276ca66b9da80c1cf0f57dc2 Export of internal Abseil changes. by Abseil Team - ad1485c8986246b2ae9105e512738d0e97aec887 Export of internal Abseil changes. by Abseil Team - f3840bc5e33ce4932e35986cf3718450c6f02af2 Export of internal Abseil changes. by Abseil Team - 278b26058c036833a4f7f3047d3f4d9296527f87 Export of internal Abseil changes. by Abseil Team - c6c3c1b498e4ee939b24be59cae29d59c3863be8 Export of internal Abseil changes. by Abseil Team - 44efe96dfca674a17b45ca53fc77fb69f1e29bf4 Export of internal Abseil changes. by Abseil Team - 3c98fcc0461bd2a4b9c149d4748a7373a225cf4b Merge pull request #340 from jtsylve/macos_cxx17_fix by Matt Calabrese <38107210+mattcalabrese-google@users.noreply.github.com> - 74d91756c11bc22f9b0108b94da9326f7f9e376f Export of internal Abseil changes. by Abseil Team - e6b050212c859fbaf67abac76105da10ec348274 Export of internal Abseil changes. by Abseil Team - c964fcffac27bd4a9ff67fe393410dd1146ef8b8 Export of internal Abseil changes. by Abseil Team - 72e09a54d993b192db32be14c65adf7e9bd08c31 Export of internal Abseil changes. by Abseil Team - d65e19dfcd8697076f68598c0131c6930cdcd74d Export of internal Abseil changes. by Abseil Team - 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0b1e6d417b414aad9282e32e8c49c719edeb63c1 Export of internal Abseil changes. by Abseil Team - efccc502606bed768e50a6cd5806d8eb13e4e935 Export of internal Abseil changes. by Abseil Team - 5e6a78131f7bd5940218462c07d88cdefdd75dbe Export of internal Abseil changes. by Abseil Team - 5eea0f713c14ac17788b83e496f11903f8e2bbb0 Export of internal Abseil changes. by Abseil Team - 66f9becbb98ecc083f4db349b4b1e0ca9de93b15 Export of internal Abseil changes. by Abseil Team - 018b4db1d73ec8238e6dc4b17fd9e1fd7468d0ed Export of internal Abseil changes. by Abseil Team - 9449ae94397f2fd683851348e25ed8c93f75b3b9 Merge pull request #243 from ThomsonTan/FixIntrinsic by Alex Strelnikov - b16aeb6756bdab08cdf12d40baab5b51f7d15b16 Export of internal Abseil changes. by Abseil Team - 7ffbe09f3d85504bd018783bbe1e2c12992fe47c Export of internal Abseil changes. by Abseil Team - 01b471d9f3ebef27f5aaca14b66509099fa8cd6c Export of internal Abseil changes. by Abseil Team - 7bd8f36c741c7cbe311611d7981bf38ba04c6fef Export of internal Abseil changes. by Abseil Team - 968a34ffdaadd7db062a9621dfbdf8b2d16e05af Export of internal Abseil changes. by Abseil Team - 3e2e9b5557e76d098de4b8a2a659125b98ca519b Merge pull request #231 from uilianries/feature/conan by Mark Barolak - 111ca7060a6ff50115ca85b59f6b5d8c8c5e9105 Export of internal Abseil changes. by Abseil Team - 389ec3f906f018661a5308458d623d01f96d7b23 Export of internal Abseil changes. by Abseil Team - 8fbcdb90952c57828c4a9c2f6d79fcd7cae9088f Export of internal Abseil changes. by Abseil Team - 455dc17ba1af9635f0b60155bc565bc572a1e722 Export of internal Abseil changes. by Abseil Team - f197d7c72a54064cfde5a2058f1513a4a0ee36fb Export of internal Abseil changes. by Abseil Team - 284378a71b32dfb3af4e3661f585e671d1b603a3 Export of internal Abseil changes. by Abseil Team GitOrigin-RevId: 9ee91d3e430fb33a4590486573792eb0fa146c2d Change-Id: Ia06e548bc106cc9d136f6c65714be6645317aced --- absl/types/internal/variant.h | 74 +++++++++++++++++++++++++------------------ 1 file changed, 44 insertions(+), 30 deletions(-) (limited to 'absl/types/internal/variant.h') diff --git a/absl/types/internal/variant.h b/absl/types/internal/variant.h index 875f88e0..4f29f617 100644 --- a/absl/types/internal/variant.h +++ b/absl/types/internal/variant.h @@ -4,7 +4,7 @@ // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // -// http://www.apache.org/licenses/LICENSE-2.0 +// https://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, @@ -15,7 +15,6 @@ // Implementation details of absl/types/variant.h, pulled into a // separate file to avoid cluttering the top of the API header with // implementation details. -// #ifndef ABSL_TYPES_variant_internal_H_ #define ABSL_TYPES_variant_internal_H_ @@ -41,7 +40,7 @@ #if !defined(ABSL_HAVE_STD_VARIANT) namespace absl { -inline namespace lts_2018_12_18 { +inline namespace lts_2019_08_08 { template class variant; @@ -206,7 +205,7 @@ template using VisitIndicesResultT = typename VisitIndicesResultImpl::type; template + class BoundIndices> struct MakeVisitationMatrix; template @@ -220,7 +219,7 @@ constexpr ReturnType call_with_indices(FunctionObject&& function) { template struct MakeVisitationMatrix, - BoundIndices...> { + index_sequence> { using ResultType = ReturnType (*)(FunctionObject&&); static constexpr ResultType Run() { return &call_with_indices, } }; +template +struct AppendToIndexSequence; + +template +using AppendToIndexSequenceT = typename AppendToIndexSequence::type; + +template +struct AppendToIndexSequence, J> { + using type = index_sequence; +}; + template + class CurrIndices, class BoundIndices> struct MakeVisitationMatrixImpl; -template -struct MakeVisitationMatrixImpl< - ReturnType, FunctionObject, index_sequence, - index_sequence, BoundIndices...> { +template +struct MakeVisitationMatrixImpl, BoundIndices> { using ResultType = SimpleArray< - typename MakeVisitationMatrix>::ResultType, + typename MakeVisitationMatrix>::ResultType, sizeof...(CurrIndices)>; static constexpr ResultType Run() { - return {{MakeVisitationMatrix, - BoundIndices..., CurrIndices>::Run()...}}; + return {{MakeVisitationMatrix< + ReturnType, FunctionObject, EndIndices, + AppendToIndexSequenceT>::Run()...}}; } }; @@ -253,10 +262,11 @@ template struct MakeVisitationMatrix, - BoundIndices...> - : MakeVisitationMatrixImpl< - ReturnType, FunctionObject, index_sequence, - absl::make_index_sequence, BoundIndices...> {}; + index_sequence> + : MakeVisitationMatrixImpl, + absl::make_index_sequence, + index_sequence> {}; struct UnreachableSwitchCase { template @@ -425,7 +435,8 @@ struct VisitIndicesFallback { static VisitIndicesResultT Run(Op&& op, SizeT... indices) { return AccessSimpleArray( MakeVisitationMatrix, Op, - index_sequence<(EndIndices + 1)...>>::Run(), + index_sequence<(EndIndices + 1)...>, + index_sequence<>>::Run(), (indices + 1)...)(absl::forward(op)); } }; @@ -839,8 +850,8 @@ struct ImaginaryFun, I> : ImaginaryFun, I + 1> { // NOTE: const& and && are used instead of by-value due to lack of guaranteed // move elision of C++17. This may have other minor differences, but tests // pass. - static SizeT Run(const H&); - static SizeT Run(H&&); + static SizeT Run(const H&, SizeT); + static SizeT Run(H&&, SizeT); }; // The following metafunctions are used in constructor and assignment @@ -862,7 +873,8 @@ struct ConversionIsPossibleImpl : std::false_type {}; template struct ConversionIsPossibleImpl< - Variant, T, void_t::Run(std::declval()))>> + Variant, T, + void_t::Run(std::declval(), {}))>> : std::true_type {}; template @@ -870,8 +882,9 @@ struct ConversionIsPossible : ConversionIsPossibleImpl::type {}; template struct IndexOfConstructedType< - Variant, T, void_t::Run(std::declval()))>> - : decltype(ImaginaryFun::Run(std::declval())) {}; + Variant, T, + void_t::Run(std::declval(), {}))>> + : decltype(ImaginaryFun::Run(std::declval(), {})) {}; template struct ContainsVariantNPos @@ -1550,8 +1563,8 @@ struct SwapSameIndex { variant* w; template void operator()(SizeT) const { - using std::swap; - swap(VariantCoreAccess::Access(*v), VariantCoreAccess::Access(*w)); + type_traits_internal::Swap(VariantCoreAccess::Access(*v), + VariantCoreAccess::Access(*w)); } void operator()(SizeT) const {} @@ -1606,11 +1619,12 @@ struct VariantHashVisitor { template struct VariantHashBase...>::value>, + type_traits_internal::IsHashable...>::value>, Ts...> { using argument_type = Variant; using result_type = size_t; size_t operator()(const Variant& var) const { + type_traits_internal::AssertHashEnabled(); if (var.valueless_by_exception()) { return 239799884; } @@ -1625,7 +1639,7 @@ struct VariantHashBase