The Tor Browser: mfbt/tests/TestTypedEnum.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 #include "mozilla/Assertions.h"

     6 #include "mozilla/Attributes.h"

     7 #include "mozilla/TypedEnum.h"

     8 #include "mozilla/TypedEnumBits.h"

    10 #include <stdint.h>

    12 // A rough feature check for is_literal_type. Not very carefully checked.

    13 // Feel free to amend as needed.

    14 // We leave ANDROID out because it's using stlport which doesn't have std::is_literal_type.

    15 #if __cplusplus >= 201103L && !defined(ANDROID)

    16 #  if defined(__clang__)

    17      /*

    18       * Per Clang documentation, "Note that marketing version numbers should not

    19       * be used to check for language features, as different vendors use different

    20       * numbering schemes. Instead, use the feature checking macros."

    21       */

    22 #    ifndef __has_extension

    23 #      define __has_extension __has_feature /* compatibility, for older versions of clang */

    24 #    endif

    25 #    if __has_extension(is_literal) && __has_include(<type_traits>)

    26 #      define MOZ_HAVE_IS_LITERAL

    27 #    endif

    28 #  elif defined(__GNUC__)

    29 #    if defined(__GXX_EXPERIMENTAL_CXX0X__)

    30 #      if MOZ_GCC_VERSION_AT_LEAST(4, 6, 0)

    31 #        define MOZ_HAVE_IS_LITERAL

    32 #      endif

    33 #    endif

    34 #  elif defined(_MSC_VER)

    35 #    if _MSC_VER >= 1700

    36 #      define MOZ_HAVE_IS_LITERAL

    37 #    endif

    38 #  endif

    39 #endif

    41 #ifdef MOZ_HAVE_IS_LITERAL

    42 #include <type_traits>

    43 template<typename T>

    44 void

    45 RequireLiteralType()

    46 {

    47   static_assert(std::is_literal_type<T>::value, "Expected a literal type");

    48 }

    49 #else // not MOZ_HAVE_IS_LITERAL

    50 template<typename T>

    51 void

    52 RequireLiteralType()

    53 {

    54 }

    55 #endif

    57 template<typename T>

    58 void

    59 RequireLiteralType(const T&)

    60 {

    61   RequireLiteralType<T>();

    62 }

    64 MOZ_BEGIN_ENUM_CLASS(AutoEnum)

    65   A,

    66   B = -3,

    67   C

    68 MOZ_END_ENUM_CLASS(AutoEnum)

    70 MOZ_BEGIN_ENUM_CLASS(CharEnum, char)

    71   A,

    72   B = 3,

    73   C

    74 MOZ_END_ENUM_CLASS(CharEnum)

    76 MOZ_BEGIN_ENUM_CLASS(AutoEnumBitField)

    77   A = 0x10,

    78   B = 0x20,

    79   C

    80 MOZ_END_ENUM_CLASS(AutoEnumBitField)

    82 MOZ_BEGIN_ENUM_CLASS(CharEnumBitField, char)

    83   A = 0x10,

    84   B,

    85   C = 0x40

    86 MOZ_END_ENUM_CLASS(CharEnumBitField)

    88 struct Nested

    89 {

    90   MOZ_BEGIN_NESTED_ENUM_CLASS(AutoEnum)

    91     A,

    92     B,

    93     C = -1

    94   MOZ_END_NESTED_ENUM_CLASS(AutoEnum)

    96   MOZ_BEGIN_NESTED_ENUM_CLASS(CharEnum, char)

    97     A = 4,

    98     B,

    99     C = 1

   100   MOZ_END_NESTED_ENUM_CLASS(CharEnum)

   102   MOZ_BEGIN_NESTED_ENUM_CLASS(AutoEnumBitField)

   103     A,

   104     B = 0x20,

   105     C

   106   MOZ_END_NESTED_ENUM_CLASS(AutoEnumBitField)

   108   MOZ_BEGIN_NESTED_ENUM_CLASS(CharEnumBitField, char)

   109     A = 1,

   110     B = 1,

   111     C = 1

   112   MOZ_END_NESTED_ENUM_CLASS(CharEnumBitField)

   113 };

   115 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(AutoEnumBitField)

   116 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(CharEnumBitField)

   117 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(Nested::AutoEnumBitField)

   118 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(Nested::CharEnumBitField)

   120 #define MAKE_STANDARD_BITFIELD_FOR_TYPE(IntType)                   \

   121   MOZ_BEGIN_ENUM_CLASS(BitFieldFor_##IntType, IntType)             \

   122     A = 1,                                                         \

   123     B = 2,                                                         \

   124     C = 4,                                                         \

   125   MOZ_END_ENUM_CLASS(BitFieldFor_##IntType)                        \

   126   MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(BitFieldFor_##IntType)

   128 MAKE_STANDARD_BITFIELD_FOR_TYPE(int8_t)

   129 MAKE_STANDARD_BITFIELD_FOR_TYPE(uint8_t)

   130 MAKE_STANDARD_BITFIELD_FOR_TYPE(int16_t)

   131 MAKE_STANDARD_BITFIELD_FOR_TYPE(uint16_t)

   132 MAKE_STANDARD_BITFIELD_FOR_TYPE(int32_t)

   133 MAKE_STANDARD_BITFIELD_FOR_TYPE(uint32_t)

   134 MAKE_STANDARD_BITFIELD_FOR_TYPE(int64_t)

   135 MAKE_STANDARD_BITFIELD_FOR_TYPE(uint64_t)

   136 MAKE_STANDARD_BITFIELD_FOR_TYPE(char)

   137 typedef signed char signed_char;

   138 MAKE_STANDARD_BITFIELD_FOR_TYPE(signed_char)

   139 typedef unsigned char unsigned_char;

   140 MAKE_STANDARD_BITFIELD_FOR_TYPE(unsigned_char)

   141 MAKE_STANDARD_BITFIELD_FOR_TYPE(short)

   142 typedef unsigned short unsigned_short;

   143 MAKE_STANDARD_BITFIELD_FOR_TYPE(unsigned_short)

   144 MAKE_STANDARD_BITFIELD_FOR_TYPE(int)

   145 typedef unsigned int unsigned_int;

   146 MAKE_STANDARD_BITFIELD_FOR_TYPE(unsigned_int)

   147 MAKE_STANDARD_BITFIELD_FOR_TYPE(long)

   148 typedef unsigned long unsigned_long;

   149 MAKE_STANDARD_BITFIELD_FOR_TYPE(unsigned_long)

   150 typedef long long long_long;

   151 MAKE_STANDARD_BITFIELD_FOR_TYPE(long_long)

   152 typedef unsigned long long unsigned_long_long;

   153 MAKE_STANDARD_BITFIELD_FOR_TYPE(unsigned_long_long)

   155 #undef MAKE_STANDARD_BITFIELD_FOR_TYPE

   157 template<typename T>

   158 void

   159 TestNonConvertibilityForOneType()

   160 {

   161   using mozilla::IsConvertible;

   163 #if defined(MOZ_HAVE_CXX11_STRONG_ENUMS) && defined(MOZ_HAVE_EXPLICIT_CONVERSION)

   164   static_assert(!IsConvertible<T, bool>::value, "should not be convertible");

   165   static_assert(!IsConvertible<T, int>::value, "should not be convertible");

   166   static_assert(!IsConvertible<T, uint64_t>::value, "should not be convertible");

   167 #endif

   169   static_assert(!IsConvertible<bool, T>::value, "should not be convertible");

   170   static_assert(!IsConvertible<int, T>::value, "should not be convertible");

   171   static_assert(!IsConvertible<uint64_t, T>::value, "should not be convertible");

   172 }

   174 template<typename TypedEnum>

   175 void

   176 TestTypedEnumBasics()

   177 {

   178   const TypedEnum a = TypedEnum::A;

   179   int unused = int(a);

   180   (void) unused;

   181   RequireLiteralType(TypedEnum::A);

   182   RequireLiteralType(a);

   183   TestNonConvertibilityForOneType<TypedEnum>();

   184 }

   186 // Op wraps a bitwise binary operator, passed as a char template parameter,

   187 // and applies it to its arguments (t1, t2). For example,

   188 //

   189 //   Op<'|'>(t1, t2)

   190 //

   191 // is the same as

   192 //

   193 //   t1 | t2.

   194 //

   195 template<char o, typename T1, typename T2>

   196 auto Op(const T1& t1, const T2& t2)

   197   -> decltype(t1 | t2) // See the static_assert's below --- the return type

   198                        // depends solely on the operands type, not on the

   199                        // choice of operation.

   200 {

   201   using mozilla::IsSame;

   202   static_assert(IsSame<decltype(t1 | t2), decltype(t1 & t2)>::value,

   203                 "binary ops should have the same result type");

   204   static_assert(IsSame<decltype(t1 | t2), decltype(t1 ^ t2)>::value,

   205                 "binary ops should have the same result type");

   207   static_assert(o == '|' ||

   208                 o == '&' ||

   209                 o == '^', "unexpected operator character");

   211   return o == '|' ? t1 | t2

   212        : o == '&' ? t1 & t2

   213                   : t1 ^ t2;

   214 }

   216 // OpAssign wraps a bitwise binary operator, passed as a char template

   217 // parameter, and applies the corresponding compound-assignment operator to its

   218 // arguments (t1, t2). For example,

   219 //

   220 //   OpAssign<'|'>(t1, t2)

   221 //

   222 // is the same as

   223 //

   224 //   t1 |= t2.

   225 //

   226 template<char o, typename T1, typename T2>

   227 T1& OpAssign(T1& t1, const T2& t2)

   228 {

   229   static_assert(o == '|' ||

   230                 o == '&' ||

   231                 o == '^', "unexpected operator character");

   233   switch (o) {

   234     case '|': return t1 |= t2;

   235     case '&': return t1 &= t2;

   236     case '^': return t1 ^= t2;

   237     default: MOZ_CRASH();

   238   }

   239 }

   241 // Tests a single binary bitwise operator, using a single set of three operands.

   242 // The operations tested are:

   243 //

   244 //   result = t1 Op t2;

   245 //   result Op= t3;

   246 //

   247 // Where Op is the operator specified by the char template parameter 'o' and can

   248 // be any of '|', '&', '^'.

   249 //

   250 // Note that the operands t1, t2, t3 are intentionally passed with free types

   251 // (separate template parameters for each) because their type may actually be

   252 // different from TypedEnum:

   253 //   1) Their type could be CastableTypedEnumResult<TypedEnum> if they are

   254 //      the result of a bitwise operation themselves;

   255 //   2) In the non-c++11 legacy path, the type of enum values is also

   256 //      different from TypedEnum.

   257 //

   258 template<typename TypedEnum, char o, typename T1, typename T2, typename T3>

   259 void TestBinOp(const T1& t1, const T2& t2, const T3& t3)

   260 {

   261   typedef typename mozilla::detail::UnsignedIntegerTypeForEnum<TypedEnum>::Type

   262           UnsignedIntegerType;

   264   // Part 1:

   265   // Test the bitwise binary operator i.e.

   266   //   result = t1 Op t2;

   267   auto result = Op<o>(t1, t2);

   269   typedef decltype(result) ResultType;

   271   RequireLiteralType<ResultType>();

   272   TestNonConvertibilityForOneType<ResultType>();

   274   UnsignedIntegerType unsignedIntegerResult

   275     = Op<o>(UnsignedIntegerType(t1), UnsignedIntegerType(t2));

   277   MOZ_RELEASE_ASSERT(unsignedIntegerResult == UnsignedIntegerType(result));

   278   MOZ_RELEASE_ASSERT(TypedEnum(unsignedIntegerResult) == TypedEnum(result));

   279   MOZ_RELEASE_ASSERT((!unsignedIntegerResult) == (!result));

   280   MOZ_RELEASE_ASSERT((!!unsignedIntegerResult) == (!!result));

   281   MOZ_RELEASE_ASSERT(bool(unsignedIntegerResult) == bool(result));

   283   // Part 2:

   284   // Test the compound-assignment operator, i.e.

   285   //   result Op= t3;

   286   TypedEnum newResult = result;

   287   OpAssign<o>(newResult, t3);

   288   UnsignedIntegerType unsignedIntegerNewResult = unsignedIntegerResult;

   289   OpAssign<o>(unsignedIntegerNewResult, UnsignedIntegerType(t3));

   290   MOZ_RELEASE_ASSERT(TypedEnum(unsignedIntegerNewResult) == newResult);

   292   // Part 3:

   293   // Test additional boolean operators that we unfortunately had to add to

   294   // CastableTypedEnumResult at some point to please some compiler,

   295   // even though bool convertibility should have been enough.

   296   MOZ_RELEASE_ASSERT(result == TypedEnum(result));

   297   MOZ_RELEASE_ASSERT(!(result != TypedEnum(result)));

   298   MOZ_RELEASE_ASSERT((result && true) == bool(result));

   299   MOZ_RELEASE_ASSERT((result && false) == false);

   300   MOZ_RELEASE_ASSERT((true && result) == bool(result));

   301   MOZ_RELEASE_ASSERT((false && result && false) == false);

   302   MOZ_RELEASE_ASSERT((result || false) == bool(result));

   303   MOZ_RELEASE_ASSERT((result || true) == true);

   304   MOZ_RELEASE_ASSERT((false || result) == bool(result));

   305   MOZ_RELEASE_ASSERT((true || result) == true);

   306 }

   308 // Similar to TestBinOp but testing the unary ~ operator.

   309 template<typename TypedEnum, typename T>

   310 void TestTilde(const T& t)

   311 {

   312   typedef typename mozilla::detail::UnsignedIntegerTypeForEnum<TypedEnum>::Type

   313           UnsignedIntegerType;

   315   auto result = ~t;

   317   typedef decltype(result) ResultType;

   319   RequireLiteralType<ResultType>();

   320   TestNonConvertibilityForOneType<ResultType>();

   322   UnsignedIntegerType unsignedIntegerResult = ~(UnsignedIntegerType(t));

   324   MOZ_RELEASE_ASSERT(unsignedIntegerResult == UnsignedIntegerType(result));

   325   MOZ_RELEASE_ASSERT(TypedEnum(unsignedIntegerResult) == TypedEnum(result));

   326   MOZ_RELEASE_ASSERT((!unsignedIntegerResult) == (!result));

   327   MOZ_RELEASE_ASSERT((!!unsignedIntegerResult) == (!!result));

   328   MOZ_RELEASE_ASSERT(bool(unsignedIntegerResult) == bool(result));

   329 }

   331 // Helper dispatching a given triple of operands to all operator-specific

   332 // testing functions.

   333 template<typename TypedEnum, typename T1, typename T2, typename T3>

   334 void TestAllOpsForGivenOperands(const T1& t1, const T2& t2, const T3& t3)

   335 {

   336   TestBinOp<TypedEnum, '|'>(t1, t2, t3);

   337   TestBinOp<TypedEnum, '&'>(t1, t2, t3);

   338   TestBinOp<TypedEnum, '^'>(t1, t2, t3);

   339   TestTilde<TypedEnum>(t1);

   340 }

   342 // Helper building various triples of operands using a given operator,

   343 // and testing all operators with them.

   344 template<typename TypedEnum, char o>

   345 void TestAllOpsForOperandsBuiltUsingGivenOp()

   346 {

   347   // The type of enum values like TypedEnum::A may be different from

   348   // TypedEnum. That is the case in the legacy non-C++11 path. We want to

   349   // ensure good test coverage even when these two types are distinct.

   350   // To that effect, we have both 'auto' typed variables, preserving the

   351   // original type of enum values, and 'plain' typed variables, that

   352   // are plain TypedEnum's.

   354   const TypedEnum a_plain = TypedEnum::A;

   355   const TypedEnum b_plain = TypedEnum::B;

   356   const TypedEnum c_plain = TypedEnum::C;

   358   auto a_auto = TypedEnum::A;

   359   auto b_auto = TypedEnum::B;

   360   auto c_auto = TypedEnum::C;

   362   auto ab_plain = Op<o>(a_plain, b_plain);

   363   auto bc_plain = Op<o>(b_plain, c_plain);

   364   auto ab_auto = Op<o>(a_auto, b_auto);

   365   auto bc_auto = Op<o>(b_auto, c_auto);

   367   // On each row below, we pass a triple of operands. Keep in mind that this

   368   // is going to be received as (t1, t2, t3) and the actual tests performed

   369   // will be of the form

   370   //

   371   //   result = t1 Op t2;

   372   //   result Op= t3;

   373   //

   374   // For this reason, we carefully ensure that the values of (t1, t2)

   375   // systematically cover all types of such pairs; to limit complexity,

   376   // we are not so careful with t3, and we just try to pass t3's

   377   // that may lead to nontrivial bitwise operations.

   378   TestAllOpsForGivenOperands<TypedEnum>(a_plain,  b_plain,  c_plain);

   379   TestAllOpsForGivenOperands<TypedEnum>(a_plain,  bc_plain, b_auto);

   380   TestAllOpsForGivenOperands<TypedEnum>(ab_plain, c_plain,  a_plain);

   381   TestAllOpsForGivenOperands<TypedEnum>(ab_plain, bc_plain, a_auto);

   383   TestAllOpsForGivenOperands<TypedEnum>(a_plain,  b_auto,   c_plain);

   384   TestAllOpsForGivenOperands<TypedEnum>(a_plain,  bc_auto,  b_auto);

   385   TestAllOpsForGivenOperands<TypedEnum>(ab_plain, c_auto,   a_plain);

   386   TestAllOpsForGivenOperands<TypedEnum>(ab_plain, bc_auto,  a_auto);

   388   TestAllOpsForGivenOperands<TypedEnum>(a_auto,   b_plain,  c_plain);

   389   TestAllOpsForGivenOperands<TypedEnum>(a_auto,   bc_plain, b_auto);

   390   TestAllOpsForGivenOperands<TypedEnum>(ab_auto,  c_plain,  a_plain);

   391   TestAllOpsForGivenOperands<TypedEnum>(ab_auto,  bc_plain, a_auto);

   393   TestAllOpsForGivenOperands<TypedEnum>(a_auto,   b_auto,   c_plain);

   394   TestAllOpsForGivenOperands<TypedEnum>(a_auto,   bc_auto,  b_auto);

   395   TestAllOpsForGivenOperands<TypedEnum>(ab_auto,  c_auto,   a_plain);

   396   TestAllOpsForGivenOperands<TypedEnum>(ab_auto,  bc_auto,  a_auto);

   397 }

   399 // Tests all bitwise operations on a given TypedEnum bitfield.

   400 template<typename TypedEnum>

   401 void

   402 TestTypedEnumBitField()

   403 {

   404   TestTypedEnumBasics<TypedEnum>();

   406   TestAllOpsForOperandsBuiltUsingGivenOp<TypedEnum, '|'>();

   407   TestAllOpsForOperandsBuiltUsingGivenOp<TypedEnum, '&'>();

   408   TestAllOpsForOperandsBuiltUsingGivenOp<TypedEnum, '^'>();

   409 }

   411 // Checks that enum bitwise expressions have the same non-convertibility properties as

   412 // c++11 enum classes do, i.e. not implicitly convertible to anything

   413 // (though *explicitly* convertible).

   414 void TestNoConversionsBetweenUnrelatedTypes()

   415 {

   416   using mozilla::IsConvertible;

   418   // Two typed enum classes having the same underlying integer type, to ensure that

   419   // we would catch bugs accidentally allowing conversions in that case.

   420   typedef CharEnumBitField T1;

   421   typedef Nested::CharEnumBitField T2;

   423   static_assert(!IsConvertible<T1, T2>::value,

   424                 "should not be convertible");

   425   static_assert(!IsConvertible<T1, decltype(T2::A)>::value,

   426                 "should not be convertible");

   427   static_assert(!IsConvertible<T1, decltype(T2::A | T2::B)>::value,

   428                 "should not be convertible");

   430   static_assert(!IsConvertible<decltype(T1::A), T2>::value,

   431                 "should not be convertible");

   432   static_assert(!IsConvertible<decltype(T1::A), decltype(T2::A)>::value,

   433                 "should not be convertible");

   434   static_assert(!IsConvertible<decltype(T1::A), decltype(T2::A | T2::B)>::value,

   435                 "should not be convertible");

   437   // The following are #ifdef MOZ_HAVE_EXPLICIT_CONVERSION because

   438   // without support for explicit conversion operators, we can't easily have these

   439   // bad conversions completely removed. They still do fail to compile in practice,

   440   // but not in a way that we can static_assert on.

   441 #ifdef MOZ_HAVE_EXPLICIT_CONVERSION

   442   static_assert(!IsConvertible<decltype(T1::A | T1::B), T2>::value,

   443                 "should not be convertible");

   444   static_assert(!IsConvertible<decltype(T1::A | T1::B), decltype(T2::A)>::value,

   445                 "should not be convertible");

   446   static_assert(!IsConvertible<decltype(T1::A | T1::B), decltype(T2::A | T2::B)>::value,

   447                 "should not be convertible");

   448 #endif

   449 }

   451 MOZ_BEGIN_ENUM_CLASS(Int8EnumWithHighBits, int8_t)

   452   A = 0x20,

   453   B = 0x40

   454 MOZ_END_ENUM_CLASS(Int8EnumWithHighBits)

   455 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(Int8EnumWithHighBits)

   457 MOZ_BEGIN_ENUM_CLASS(Uint8EnumWithHighBits, uint8_t)

   458   A = 0x40,

   459   B = 0x80

   460 MOZ_END_ENUM_CLASS(Uint8EnumWithHighBits)

   461 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(Uint8EnumWithHighBits)

   463 MOZ_BEGIN_ENUM_CLASS(Int16EnumWithHighBits, int16_t)

   464   A = 0x2000,

   465   B = 0x4000

   466 MOZ_END_ENUM_CLASS(Int16EnumWithHighBits)

   467 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(Int16EnumWithHighBits)

   469 MOZ_BEGIN_ENUM_CLASS(Uint16EnumWithHighBits, uint16_t)

   470   A = 0x4000,

   471   B = 0x8000

   472 MOZ_END_ENUM_CLASS(Uint16EnumWithHighBits)

   473 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(Uint16EnumWithHighBits)

   475 MOZ_BEGIN_ENUM_CLASS(Int32EnumWithHighBits, int32_t)

   476   A = 0x20000000,

   477   B = 0x40000000

   478 MOZ_END_ENUM_CLASS(Int32EnumWithHighBits)

   479 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(Int32EnumWithHighBits)

   481 MOZ_BEGIN_ENUM_CLASS(Uint32EnumWithHighBits, uint32_t)

   482   A = 0x40000000u,

   483   B = 0x80000000u

   484 MOZ_END_ENUM_CLASS(Uint32EnumWithHighBits)

   485 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(Uint32EnumWithHighBits)

   487 MOZ_BEGIN_ENUM_CLASS(Int64EnumWithHighBits, int64_t)

   488   A = 0x2000000000000000ll,

   489   B = 0x4000000000000000ll

   490 MOZ_END_ENUM_CLASS(Int64EnumWithHighBits)

   491 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(Int64EnumWithHighBits)

   493 MOZ_BEGIN_ENUM_CLASS(Uint64EnumWithHighBits, uint64_t)

   494   A = 0x4000000000000000ull,

   495   B = 0x8000000000000000ull

   496 MOZ_END_ENUM_CLASS(Uint64EnumWithHighBits)

   497 MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(Uint64EnumWithHighBits)

   499 // Checks that we don't accidentally truncate high bits by coercing to the wrong

   500 // integer type internally when implementing bitwise ops.

   501 template<typename EnumType, typename IntType>

   502 void TestIsNotTruncated()

   503 {

   504   EnumType a = EnumType::A;

   505   EnumType b = EnumType::B;

   506   MOZ_RELEASE_ASSERT(IntType(a));

   507   MOZ_RELEASE_ASSERT(IntType(b));

   508   MOZ_RELEASE_ASSERT(a | EnumType::B);

   509   MOZ_RELEASE_ASSERT(a | b);

   510   MOZ_RELEASE_ASSERT(EnumType::A | EnumType::B);

   511   EnumType c = EnumType::A | EnumType::B;

   512   MOZ_RELEASE_ASSERT(IntType(c));

   513   MOZ_RELEASE_ASSERT(c & c);

   514   MOZ_RELEASE_ASSERT(c | c);

   515   MOZ_RELEASE_ASSERT(c == (EnumType::A | EnumType::B));

   516   MOZ_RELEASE_ASSERT(a != (EnumType::A | EnumType::B));

   517   MOZ_RELEASE_ASSERT(b != (EnumType::A | EnumType::B));

   518   MOZ_RELEASE_ASSERT(c & EnumType::A);

   519   MOZ_RELEASE_ASSERT(c & EnumType::B);

   520   EnumType d = EnumType::A;

   521   d |= EnumType::B;

   522   MOZ_RELEASE_ASSERT(d == c);

   523 }

   525 int

   526 main()

   527 {

   528   TestTypedEnumBasics<AutoEnum>();

   529   TestTypedEnumBasics<CharEnum>();

   530   TestTypedEnumBasics<Nested::AutoEnum>();

   531   TestTypedEnumBasics<Nested::CharEnum>();

   533   TestTypedEnumBitField<AutoEnumBitField>();

   534   TestTypedEnumBitField<CharEnumBitField>();

   535   TestTypedEnumBitField<Nested::AutoEnumBitField>();

   536   TestTypedEnumBitField<Nested::CharEnumBitField>();

   538   TestTypedEnumBitField<BitFieldFor_uint8_t>();

   539   TestTypedEnumBitField<BitFieldFor_int8_t>();

   540   TestTypedEnumBitField<BitFieldFor_uint16_t>();

   541   TestTypedEnumBitField<BitFieldFor_int16_t>();

   542   TestTypedEnumBitField<BitFieldFor_uint32_t>();

   543   TestTypedEnumBitField<BitFieldFor_int32_t>();

   544   TestTypedEnumBitField<BitFieldFor_uint64_t>();

   545   TestTypedEnumBitField<BitFieldFor_int64_t>();

   546   TestTypedEnumBitField<BitFieldFor_char>();

   547   TestTypedEnumBitField<BitFieldFor_signed_char>();

   548   TestTypedEnumBitField<BitFieldFor_unsigned_char>();

   549   TestTypedEnumBitField<BitFieldFor_short>();

   550   TestTypedEnumBitField<BitFieldFor_unsigned_short>();

   551   TestTypedEnumBitField<BitFieldFor_int>();

   552   TestTypedEnumBitField<BitFieldFor_unsigned_int>();

   553   TestTypedEnumBitField<BitFieldFor_long>();

   554   TestTypedEnumBitField<BitFieldFor_unsigned_long>();

   555   TestTypedEnumBitField<BitFieldFor_long_long>();

   556   TestTypedEnumBitField<BitFieldFor_unsigned_long_long>();

   558   TestNoConversionsBetweenUnrelatedTypes();

   560   TestIsNotTruncated<Int8EnumWithHighBits, int8_t>();

   561   TestIsNotTruncated<Int16EnumWithHighBits, int16_t>();

   562   TestIsNotTruncated<Int32EnumWithHighBits, int32_t>();

   563   TestIsNotTruncated<Int64EnumWithHighBits, int64_t>();

   564   TestIsNotTruncated<Uint8EnumWithHighBits, uint8_t>();

   565   TestIsNotTruncated<Uint16EnumWithHighBits, uint16_t>();

   566   TestIsNotTruncated<Uint32EnumWithHighBits, uint32_t>();

   567   TestIsNotTruncated<Uint64EnumWithHighBits, uint64_t>();

   569   return 0;

   570 }

The Tor Browser / file revision

mfbt/tests/TestTypedEnum.cpp@6474c204b198

mfbt/tests/TestTypedEnum.cpp