diff options
Diffstat (limited to 'absl/types')
| -rw-r--r-- | absl/types/any_test.cc | 68 | ||||
| -rw-r--r-- | absl/types/variant_test.cc | 110 |
2 files changed, 149 insertions, 29 deletions
diff --git a/absl/types/any_test.cc b/absl/types/any_test.cc index a6351bf96ad1..8710472190e8 100644 --- a/absl/types/any_test.cc +++ b/absl/types/any_test.cc @@ -154,6 +154,14 @@ TEST(AnyTest, InPlaceConstruction) { EXPECT_EQ(5, v.value); } +TEST(AnyTest, InPlaceConstructionVariableTemplate) { + const CopyOnly copy_only{}; + absl::any o(absl::in_place_type<IntMoveOnlyCopyOnly>, 5, MoveOnly(), + copy_only); + auto& v = absl::any_cast<IntMoveOnlyCopyOnly&>(o); + EXPECT_EQ(5, v.value); +} + TEST(AnyTest, InPlaceConstructionWithCV) { const CopyOnly copy_only{}; absl::any o(absl::in_place_type_t<const volatile IntMoveOnlyCopyOnly>(), 5, @@ -162,12 +170,26 @@ TEST(AnyTest, InPlaceConstructionWithCV) { EXPECT_EQ(5, v.value); } +TEST(AnyTest, InPlaceConstructionWithCVVariableTemplate) { + const CopyOnly copy_only{}; + absl::any o(absl::in_place_type<const volatile IntMoveOnlyCopyOnly>, 5, + MoveOnly(), copy_only); + auto& v = absl::any_cast<IntMoveOnlyCopyOnly&>(o); + EXPECT_EQ(5, v.value); +} + TEST(AnyTest, InPlaceConstructionWithFunction) { absl::any o(absl::in_place_type_t<FunctionType>(), FunctionToEmplace); FunctionType*& construction_result = absl::any_cast<FunctionType*&>(o); EXPECT_EQ(&FunctionToEmplace, construction_result); } +TEST(AnyTest, InPlaceConstructionWithFunctionVariableTemplate) { + absl::any o(absl::in_place_type<FunctionType>, FunctionToEmplace); + auto& construction_result = absl::any_cast<FunctionType*&>(o); + EXPECT_EQ(&FunctionToEmplace, construction_result); +} + TEST(AnyTest, InPlaceConstructionWithArray) { ArrayType ar = {5, 42}; absl::any o(absl::in_place_type_t<ArrayType>(), ar); @@ -175,6 +197,13 @@ TEST(AnyTest, InPlaceConstructionWithArray) { EXPECT_EQ(&ar[0], construction_result); } +TEST(AnyTest, InPlaceConstructionWithArrayVariableTemplate) { + ArrayType ar = {5, 42}; + absl::any o(absl::in_place_type<ArrayType>, ar); + auto& construction_result = absl::any_cast<DecayedArray&>(o); + EXPECT_EQ(&ar[0], construction_result); +} + TEST(AnyTest, InPlaceConstructionIlist) { const CopyOnly copy_only{}; absl::any o(absl::in_place_type_t<ListMoveOnlyCopyOnly>(), {1, 2, 3, 4}, @@ -184,6 +213,15 @@ TEST(AnyTest, InPlaceConstructionIlist) { EXPECT_EQ(expected_values, v.values); } +TEST(AnyTest, InPlaceConstructionIlistVariableTemplate) { + const CopyOnly copy_only{}; + absl::any o(absl::in_place_type<ListMoveOnlyCopyOnly>, {1, 2, 3, 4}, + MoveOnly(), copy_only); + auto& v = absl::any_cast<ListMoveOnlyCopyOnly&>(o); + std::vector<int> expected_values = {1, 2, 3, 4}; + EXPECT_EQ(expected_values, v.values); +} + TEST(AnyTest, InPlaceConstructionIlistWithCV) { const CopyOnly copy_only{}; absl::any o(absl::in_place_type_t<const volatile ListMoveOnlyCopyOnly>(), @@ -193,11 +231,25 @@ TEST(AnyTest, InPlaceConstructionIlistWithCV) { EXPECT_EQ(expected_values, v.values); } +TEST(AnyTest, InPlaceConstructionIlistWithCVVariableTemplate) { + const CopyOnly copy_only{}; + absl::any o(absl::in_place_type<const volatile ListMoveOnlyCopyOnly>, + {1, 2, 3, 4}, MoveOnly(), copy_only); + auto& v = absl::any_cast<ListMoveOnlyCopyOnly&>(o); + std::vector<int> expected_values = {1, 2, 3, 4}; + EXPECT_EQ(expected_values, v.values); +} + TEST(AnyTest, InPlaceNoArgs) { absl::any o(absl::in_place_type_t<int>{}); EXPECT_EQ(0, absl::any_cast<int&>(o)); } +TEST(AnyTest, InPlaceNoArgsVariableTemplate) { + absl::any o(absl::in_place_type<int>); + EXPECT_EQ(0, absl::any_cast<int&>(o)); +} + template <typename Enabler, typename T, typename... Args> struct CanEmplaceAnyImpl : std::false_type {}; @@ -501,7 +553,7 @@ TEST(AnyTest, Copy) { InstanceTracker tracker_raii; { - absl::any o(absl::in_place_type_t<CopyableOnlyInstance>{}, 123); + absl::any o(absl::in_place_type<CopyableOnlyInstance>, 123); CopyableOnlyInstance* f1 = absl::any_cast<CopyableOnlyInstance>(&o); absl::any o2(o); @@ -622,7 +674,7 @@ TEST(AnyTest, ThrowBadAlloc) { } { - absl::any a(absl::in_place_type_t<int>{}); + absl::any a(absl::in_place_type<int>); ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<float&>(a)); ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const float&>(a)); ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<float&&>(absl::any{})); @@ -665,7 +717,7 @@ TEST(AnyTest, FailedCopy) { } { - absl::any src(absl::in_place_type_t<BadCopyable>{}); + absl::any src(absl::in_place_type<BadCopyable>); ABSL_ANY_TEST_EXPECT_BAD_COPY(absl::any{src}); } @@ -677,21 +729,21 @@ TEST(AnyTest, FailedCopy) { { BadCopyable bad; - absl::any target(absl::in_place_type_t<BadCopyable>{}); + absl::any target(absl::in_place_type<BadCopyable>); ABSL_ANY_TEST_EXPECT_BAD_COPY(target = bad); EXPECT_TRUE(target.has_value()); } { - absl::any src(absl::in_place_type_t<BadCopyable>{}); + absl::any src(absl::in_place_type<BadCopyable>); absl::any target; ABSL_ANY_TEST_EXPECT_BAD_COPY(target = src); EXPECT_FALSE(target.has_value()); } { - absl::any src(absl::in_place_type_t<BadCopyable>{}); - absl::any target(absl::in_place_type_t<BadCopyable>{}); + absl::any src(absl::in_place_type<BadCopyable>); + absl::any target(absl::in_place_type<BadCopyable>); ABSL_ANY_TEST_EXPECT_BAD_COPY(target = src); EXPECT_TRUE(target.has_value()); } @@ -707,7 +759,7 @@ TEST(AnyTest, FailedEmplace) { { BadCopyable bad; - absl::any target(absl::in_place_type_t<int>{}); + absl::any target(absl::in_place_type<int>); ABSL_ANY_TEST_EXPECT_BAD_COPY(target.emplace<BadCopyable>(bad)); #if defined(ABSL_HAVE_STD_ANY) && defined(__GLIBCXX__) // libstdc++ std::any::emplace() implementation (as of 7.2) has a bug: if an diff --git a/absl/types/variant_test.cc b/absl/types/variant_test.cc index ab40ed2a7217..b9c981181c50 100644 --- a/absl/types/variant_test.cc +++ b/absl/types/variant_test.cc @@ -384,7 +384,7 @@ struct MoveOnly { TEST(VariantTest, TestMoveConstruct) { using V = variant<MoveOnly<class A>, MoveOnly<class B>, MoveOnly<class C>>; - V v(in_place_index_t<1>{}, 10); + V v(in_place_index<1>, 10); V v2 = absl::move(v); EXPECT_EQ(10, absl::get<1>(v2).value); } @@ -483,6 +483,29 @@ TEST(VariantTest, InPlaceType) { EXPECT_THAT(absl::get<std::vector<int>>(v5), ::testing::ElementsAre(1, 2, 3)); } +TEST(VariantTest, InPlaceTypeVariableTemplate) { + using Var = variant<int, std::string, NonCopyable, std::vector<int>>; + + Var v1(in_place_type<int>, 7); + ASSERT_TRUE(absl::holds_alternative<int>(v1)); + EXPECT_EQ(7, absl::get<int>(v1)); + + Var v2(in_place_type<std::string>, "ABC"); + ASSERT_TRUE(absl::holds_alternative<std::string>(v2)); + EXPECT_EQ("ABC", absl::get<std::string>(v2)); + + Var v3(in_place_type<std::string>, "ABC", 2); + ASSERT_TRUE(absl::holds_alternative<std::string>(v3)); + EXPECT_EQ("AB", absl::get<std::string>(v3)); + + Var v4(in_place_type<NonCopyable>); + ASSERT_TRUE(absl::holds_alternative<NonCopyable>(v4)); + + Var v5(in_place_type<std::vector<int>>, {1, 2, 3}); + ASSERT_TRUE(absl::holds_alternative<std::vector<int>>(v5)); + EXPECT_THAT(absl::get<std::vector<int>>(v5), ::testing::ElementsAre(1, 2, 3)); +} + TEST(VariantTest, InPlaceTypeInitializerList) { using Var = variant<int, std::string, NonCopyable, MoveOnlyWithListConstructor>; @@ -492,6 +515,15 @@ TEST(VariantTest, InPlaceTypeInitializerList) { EXPECT_EQ(6, absl::get<MoveOnlyWithListConstructor>(v1).value); } +TEST(VariantTest, InPlaceTypeInitializerListVariabletemplate) { + using Var = + variant<int, std::string, NonCopyable, MoveOnlyWithListConstructor>; + + Var v1(in_place_type<MoveOnlyWithListConstructor>, {1, 2, 3, 4, 5}, 6); + ASSERT_TRUE(absl::holds_alternative<MoveOnlyWithListConstructor>(v1)); + EXPECT_EQ(6, absl::get<MoveOnlyWithListConstructor>(v1).value); +} + TEST(VariantTest, InPlaceIndex) { using Var = variant<int, std::string, NonCopyable, std::vector<int>>; @@ -519,6 +551,33 @@ TEST(VariantTest, InPlaceIndex) { EXPECT_THAT(absl::get<std::vector<int>>(v5), ::testing::ElementsAre(1, 2, 3)); } +TEST(VariantTest, InPlaceIndexVariableTemplate) { + using Var = variant<int, std::string, NonCopyable, std::vector<int>>; + + Var v1(in_place_index<0>, 7); + ASSERT_TRUE(absl::holds_alternative<int>(v1)); + EXPECT_EQ(7, absl::get<int>(v1)); + + Var v2(in_place_index<1>, "ABC"); + ASSERT_TRUE(absl::holds_alternative<std::string>(v2)); + EXPECT_EQ("ABC", absl::get<std::string>(v2)); + + Var v3(in_place_index<1>, "ABC", 2); + ASSERT_TRUE(absl::holds_alternative<std::string>(v3)); + EXPECT_EQ("AB", absl::get<std::string>(v3)); + + Var v4(in_place_index<2>); + EXPECT_TRUE(absl::holds_alternative<NonCopyable>(v4)); + + // Verify that a variant with only non-copyables can still be constructed. + EXPECT_TRUE(absl::holds_alternative<NonCopyable>( + variant<NonCopyable>(in_place_index<0>))); + + Var v5(in_place_index<3>, {1, 2, 3}); + ASSERT_TRUE(absl::holds_alternative<std::vector<int>>(v5)); + EXPECT_THAT(absl::get<std::vector<int>>(v5), ::testing::ElementsAre(1, 2, 3)); +} + TEST(VariantTest, InPlaceIndexInitializerList) { using Var = variant<int, std::string, NonCopyable, MoveOnlyWithListConstructor>; @@ -528,6 +587,15 @@ TEST(VariantTest, InPlaceIndexInitializerList) { EXPECT_EQ(6, absl::get<MoveOnlyWithListConstructor>(v1).value); } +TEST(VariantTest, InPlaceIndexInitializerListVariableTemplate) { + using Var = + variant<int, std::string, NonCopyable, MoveOnlyWithListConstructor>; + + Var v1(in_place_index<3>, {1, 2, 3, 4, 5}, 6); + ASSERT_TRUE(absl::holds_alternative<MoveOnlyWithListConstructor>(v1)); + EXPECT_EQ(6, absl::get<MoveOnlyWithListConstructor>(v1).value); +} + //////////////////// // [variant.dtor] // //////////////////// @@ -576,7 +644,7 @@ TEST(VariantTest, TestDtorValuelessByException) { using Variant = VariantFactory<IncrementInDtor>::Type; - Variant v(in_place_index_t<0>(), counter_adjuster); + Variant v(in_place_index<0>, counter_adjuster); EXPECT_EQ(0, counter); ToValuelessByException(v); @@ -810,7 +878,7 @@ TEST(VariantTest, TestBackupAssign) { TEST(VariantTest, TestEmplaceBasic) { using Variant = variant<int, char>; - Variant v(absl::in_place_index_t<0>{}, 0); + Variant v(absl::in_place_index<0>, 0); { char& emplace_result = v.emplace<char>(); @@ -837,7 +905,7 @@ TEST(VariantTest, TestEmplaceInitializerList) { using Var = variant<int, std::string, NonCopyable, MoveOnlyWithListConstructor>; - Var v1(absl::in_place_index_t<0>{}, 555); + Var v1(absl::in_place_index<0>, 555); MoveOnlyWithListConstructor& emplace_result = v1.emplace<MoveOnlyWithListConstructor>({1, 2, 3, 4, 5}, 6); ASSERT_TRUE(absl::holds_alternative<MoveOnlyWithListConstructor>(v1)); @@ -848,7 +916,7 @@ TEST(VariantTest, TestEmplaceInitializerList) { TEST(VariantTest, TestEmplaceIndex) { using Variant = variant<int, char>; - Variant v(absl::in_place_index_t<0>{}, 555); + Variant v(absl::in_place_index<0>, 555); { char& emplace_result = v.emplace<1>(); @@ -875,7 +943,7 @@ TEST(VariantTest, TestEmplaceIndexInitializerList) { using Var = variant<int, std::string, NonCopyable, MoveOnlyWithListConstructor>; - Var v1(absl::in_place_index_t<0>{}, 555); + Var v1(absl::in_place_index<0>, 555); MoveOnlyWithListConstructor& emplace_result = v1.emplace<3>({1, 2, 3, 4, 5}, 6); ASSERT_TRUE(absl::holds_alternative<MoveOnlyWithListConstructor>(v1)); @@ -924,7 +992,7 @@ TEST(VariantTest, NotValuelessByException) { TEST(VariantTest, IndexValuelessByException) { using Var = variant<MoveCanThrow, std::string, double>; - Var v(absl::in_place_index_t<0>{}); + Var v(absl::in_place_index<0>); EXPECT_EQ(0, v.index()); ToValuelessByException(v); EXPECT_EQ(absl::variant_npos, v.index()); @@ -935,7 +1003,7 @@ TEST(VariantTest, IndexValuelessByException) { TEST(VariantTest, ValuelessByException) { using Var = variant<MoveCanThrow, std::string, double>; - Var v(absl::in_place_index_t<0>{}); + Var v(absl::in_place_index<0>); EXPECT_FALSE(v.valueless_by_exception()); ToValuelessByException(v); EXPECT_TRUE(v.valueless_by_exception()); @@ -966,7 +1034,7 @@ TEST(VariantTest, MemberSwap) { using V = variant<MoveCanThrow, std::string, int>; int i = 33; std::string s = "abc"; - V valueless(in_place_index_t<0>{}); + V valueless(in_place_index<0>); ToValuelessByException(valueless); { // lhs and rhs holds different alternative @@ -1127,7 +1195,7 @@ TEST(VariantTest, GetIndex) { using Var = variant<int, std::string, double, int>; { - Var v(absl::in_place_index_t<0>{}, 0); + Var v(absl::in_place_index<0>, 0); using LValueGetType = decltype(absl::get<0>(v)); using RValueGetType = decltype(absl::get<0>(absl::move(v))); @@ -1187,7 +1255,7 @@ TEST(VariantTest, GetIndex) { } { - Var v(absl::in_place_index_t<0>{}, 0); + Var v(absl::in_place_index<0>, 0); v.emplace<3>(1); using LValueGetType = decltype(absl::get<3>(v)); @@ -1334,7 +1402,7 @@ TEST(VariantTest, GetIfIndex) { using Var = variant<int, std::string, double, int>; { - Var v(absl::in_place_index_t<0>{}, 0); + Var v(absl::in_place_index<0>, 0); EXPECT_TRUE(noexcept(absl::get_if<0>(&v))); { @@ -1492,7 +1560,7 @@ TEST(VariantTest, GetIfIndex) { } { - Var v(absl::in_place_index_t<0>{}, 0); + Var v(absl::in_place_index<0>, 0); v.emplace<3>(1); EXPECT_TRUE(noexcept(absl::get_if<3>(&v))); @@ -1638,8 +1706,8 @@ TEST(VariantTest, OperatorRelational) { TEST(VariantTest, ValuelessOperatorEquals) { variant<MoveCanThrow, std::string> int_v(1), string_v("Hello"), - valueless(absl::in_place_index_t<0>{}), - other_valueless(absl::in_place_index_t<0>{}); + valueless(absl::in_place_index<0>), + other_valueless(absl::in_place_index<0>); ToValuelessByException(valueless); ToValuelessByException(other_valueless); @@ -1660,8 +1728,8 @@ TEST(VariantTest, ValuelessOperatorEquals) { TEST(VariantTest, ValuelessOperatorRelational) { variant<MoveCanThrow, std::string> int_v(1), string_v("Hello"), - valueless(absl::in_place_index_t<0>{}), - other_valueless(absl::in_place_index_t<0>{}); + valueless(absl::in_place_index<0>), + other_valueless(absl::in_place_index<0>); ToValuelessByException(valueless); ToValuelessByException(other_valueless); @@ -2008,8 +2076,8 @@ TEST(VariantTest, Hash) { #if !(defined(_MSC_VER) && defined(ABSL_HAVE_STD_VARIANT)) { // same value as different alternative - variant<int, int> v0(in_place_index_t<0>{}, 42); - variant<int, int> v1(in_place_index_t<1>{}, 42); + variant<int, int> v0(in_place_index<0>, 42); + variant<int, int> v1(in_place_index<1>, 42); std::hash<variant<int, int>> hash; EXPECT_NE(hash(v0), hash(v1)); } @@ -2605,7 +2673,7 @@ TEST(VariantTest, MoveCtorBug) { }; { using V = absl::variant<TrivialCopyNontrivialMove, int>; - V v1(absl::in_place_index_t<0>{}); + V v1(absl::in_place_index<0>); // this should invoke the move ctor, rather than the trivial copy ctor. V v2(std::move(v1)); EXPECT_TRUE(absl::get<0>(v2).called); @@ -2613,7 +2681,7 @@ TEST(VariantTest, MoveCtorBug) { { // this case failed to compile before our fix due to a GCC bug. using V = absl::variant<int, TrivialCopyNontrivialMove>; - V v1(absl::in_place_index_t<1>{}); + V v1(absl::in_place_index<1>); // this should invoke the move ctor, rather than the trivial copy ctor. V v2(std::move(v1)); EXPECT_TRUE(absl::get<1>(v2).called); |