зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1277372 - Remove unused "mozilla/TypeTraits.h" r=sergesanspaille
Differential Revision: https://phabricator.services.mozilla.com/D174129
This commit is contained in:
Andi-Bogdan Postelnicu
Родитель
bf2bb59367
Коммит
79e171fd9f
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@ -624,10 +624,6 @@ Miscellaneous
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- xpcom/ds/TimeStamp.h
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- ``std::chrono::time_point``
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-
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* -
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- mozilla/TypeTraits.h
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- ``<type_traits>``
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-
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* -
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- mozilla/PodOperations.h
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-
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@ -4,8 +4,6 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Helpers to manipulate function types that don't fit in TypeTraits.h */
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#ifndef mozilla_FunctionTypeTraits_h
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#define mozilla_FunctionTypeTraits_h
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@ -4,8 +4,6 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Helpers to manipulate integer types that don't fit in TypeTraits.h */
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#ifndef mozilla_IntegerTypeTraits_h
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#define mozilla_IntegerTypeTraits_h
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@ -1,107 +0,0 @@
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Template-based metaprogramming and type-testing facilities. */
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#ifndef mozilla_TypeTraits_h
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#define mozilla_TypeTraits_h
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#include "mozilla/Types.h"
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#include <type_traits>
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#include <utility>
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/*
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* These traits are approximate copies of the traits and semantics from C++11's
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* <type_traits> header. Don't add traits not in that header! When all
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* platforms provide that header, we can convert all users and remove this one.
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*/
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namespace mozilla {
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/* 20.9.4 Unary type traits [meta.unary] */
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/* 20.9.4.3 Type properties [meta.unary.prop] */
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/**
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* Traits class for identifying POD types. Until C++11 there's no automatic
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* way to detect PODs, so for the moment this is done manually. Users may
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* define specializations of this class that inherit from std::true_type and
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* std::false_type (or equivalently std::integral_constant<bool, true or
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* false>, or conveniently from mozilla::IsPod for composite types) as needed to
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* ensure correct IsPod behavior.
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*/
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template <typename T>
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struct IsPod : public std::false_type {};
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template <>
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struct IsPod<char> : std::true_type {};
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template <>
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struct IsPod<signed char> : std::true_type {};
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template <>
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struct IsPod<unsigned char> : std::true_type {};
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template <>
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struct IsPod<short> : std::true_type {};
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template <>
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struct IsPod<unsigned short> : std::true_type {};
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template <>
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struct IsPod<int> : std::true_type {};
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template <>
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struct IsPod<unsigned int> : std::true_type {};
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template <>
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struct IsPod<long> : std::true_type {};
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template <>
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struct IsPod<unsigned long> : std::true_type {};
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template <>
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struct IsPod<long long> : std::true_type {};
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template <>
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struct IsPod<unsigned long long> : std::true_type {};
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template <>
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struct IsPod<bool> : std::true_type {};
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template <>
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struct IsPod<float> : std::true_type {};
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template <>
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struct IsPod<double> : std::true_type {};
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template <>
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struct IsPod<wchar_t> : std::true_type {};
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template <>
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struct IsPod<char16_t> : std::true_type {};
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template <typename T>
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struct IsPod<T*> : std::true_type {};
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namespace detail {
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struct DoIsDestructibleImpl {
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template <typename T, typename = decltype(std::declval<T&>().~T())>
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static std::true_type test(int);
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template <typename T>
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static std::false_type test(...);
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};
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template <typename T>
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struct IsDestructibleImpl : public DoIsDestructibleImpl {
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typedef decltype(test<T>(0)) Type;
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};
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} // namespace detail
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/**
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* IsDestructible determines whether a type has a public destructor.
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*
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* struct S0 {}; // Implicit default destructor.
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* struct S1 { ~S1(); };
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* class C2 { ~C2(); }; // private destructor.
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*
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* mozilla::IsDestructible<S0>::value is true;
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* mozilla::IsDestructible<S1>::value is true;
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* mozilla::IsDestructible<C2>::value is false.
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*/
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template <typename T>
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struct IsDestructible : public detail::IsDestructibleImpl<T>::Type {};
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} /* namespace mozilla */
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#endif /* mozilla_TypeTraits_h */
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@ -115,7 +115,6 @@ EXPORTS.mozilla = [
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"ToString.h",
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"TypedEnumBits.h",
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"Types.h",
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"TypeTraits.h",
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"UniquePtr.h",
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"UniquePtrExtensions.h",
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"Unused.h",
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@ -1,44 +0,0 @@
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <type_traits>
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#include "mozilla/TypeTraits.h"
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using mozilla::IsDestructible;
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class PublicDestructible {
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public:
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~PublicDestructible();
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};
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class PrivateDestructible {
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private:
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~PrivateDestructible();
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};
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class TrivialDestructible {};
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static_assert(IsDestructible<PublicDestructible>::value,
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"public destructible class is destructible");
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static_assert(!IsDestructible<PrivateDestructible>::value,
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"private destructible class is not destructible");
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static_assert(IsDestructible<TrivialDestructible>::value,
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"trivial destructible class is destructible");
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/*
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* Android's broken [u]intptr_t inttype macros are broken because its PRI*PTR
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* macros are defined as "ld", but sizeof(long) is 8 and sizeof(intptr_t)
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* is 4 on 32-bit Android. We redefine Android's PRI*PTR macros in
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* IntegerPrintfMacros.h and assert here that our new definitions match the
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* actual type sizes seen at compile time.
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*/
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#if defined(ANDROID) && !defined(__LP64__)
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static_assert(std::is_same_v<int, intptr_t>,
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"emulated PRI[di]PTR definitions will be wrong");
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static_assert(std::is_same_v<unsigned int, uintptr_t>,
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"emulated PRI[ouxX]PTR definitions will be wrong");
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#endif
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int main() { return 0; }
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@ -63,7 +63,6 @@ CppUnitTests(
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"TestTemplateLib",
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"TestTextUtils",
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"TestTypedEnum",
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"TestTypeTraits",
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"TestUniquePtr",
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"TestVariant",
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"TestVector",
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@ -85,7 +85,6 @@ skip-if = os != 'win'
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[TestTemplateLib]
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[TestTextUtils]
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[TestThreadSafeWeakPtr]
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[TestTypeTraits]
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[TestTypedEnum]
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[TestUniquePtr]
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[TestUtf8]
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