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author | Denis Bitouzé <dbitouze@wanadoo.fr> | 2021-02-25 18:23:07 +0000 |
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committer | Denis Bitouzé <dbitouze@wanadoo.fr> | 2021-02-25 18:23:07 +0000 |
commit | c6101f91d071883b48b1b4b51e5eba0f36d9a78d (patch) | |
tree | 1bf7f5a881d7a4f5c5bf59d0b2821943dd822372 /Build/source/libs/harfbuzz/harfbuzz-src/src/hb-null.hh | |
parent | 07ee7222e389b0777456b427a55c22d0e6ffd267 (diff) |
French translation for tlmgr updated
git-svn-id: svn://tug.org/texlive/trunk@57912 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-null.hh')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-null.hh | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-null.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-null.hh deleted file mode 100644 index d09f858cde3..00000000000 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-null.hh +++ /dev/null @@ -1,185 +0,0 @@ -/* - * Copyright © 2018 Google, Inc. - * - * This is part of HarfBuzz, a text shaping library. - * - * Permission is hereby granted, without written agreement and without - * license or royalty fees, to use, copy, modify, and distribute this - * software and its documentation for any purpose, provided that the - * above copyright notice and the following two paragraphs appear in - * all copies of this software. - * - * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR - * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES - * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN - * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH - * DAMAGE. - * - * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS - * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO - * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. - * - * Google Author(s): Behdad Esfahbod - */ - -#ifndef HB_NULL_HH -#define HB_NULL_HH - -#include "hb.hh" -#include "hb-meta.hh" - - -/* - * Static pools - */ - -/* Global nul-content Null pool. Enlarge as necessary. */ - -#define HB_NULL_POOL_SIZE 384 - -/* Use SFINAE to sniff whether T has min_size; in which case return T::null_size, - * otherwise return sizeof(T). */ - -/* The hard way... - * https://stackoverflow.com/questions/7776448/sfinae-tried-with-bool-gives-compiler-error-template-argument-tvalue-invol - */ - -template <typename T, typename> -struct _hb_null_size : hb_integral_constant<unsigned, sizeof (T)> {}; -template <typename T> -struct _hb_null_size<T, hb_void_t<decltype (T::min_size)>> : hb_integral_constant<unsigned, T::null_size> {}; - -template <typename T> -using hb_null_size = _hb_null_size<T, void>; -#define hb_null_size(T) hb_null_size<T>::value - -/* These doesn't belong here, but since is copy/paste from above, put it here. */ - -/* hb_static_size (T) - * Returns T::static_size if T::min_size is defined, or sizeof (T) otherwise. */ - -template <typename T, typename> -struct _hb_static_size : hb_integral_constant<unsigned, sizeof (T)> {}; -template <typename T> -struct _hb_static_size<T, hb_void_t<decltype (T::min_size)>> : hb_integral_constant<unsigned, T::static_size> {}; -template <typename T> -using hb_static_size = _hb_static_size<T, void>; -#define hb_static_size(T) hb_static_size<T>::value - - -/* - * Null() - */ - -extern HB_INTERNAL -uint64_t const _hb_NullPool[(HB_NULL_POOL_SIZE + sizeof (uint64_t) - 1) / sizeof (uint64_t)]; - -/* Generic nul-content Null objects. */ -template <typename Type> -struct Null { - static Type const & get_null () - { - static_assert (hb_null_size (Type) <= HB_NULL_POOL_SIZE, "Increase HB_NULL_POOL_SIZE."); - return *reinterpret_cast<Type const *> (_hb_NullPool); - } -}; -template <typename QType> -struct NullHelper -{ - typedef hb_remove_const<hb_remove_reference<QType>> Type; - static const Type & get_null () { return Null<Type>::get_null (); } -}; -#define Null(Type) NullHelper<Type>::get_null () - -/* Specializations for arbitrary-content Null objects expressed in bytes. */ -#define DECLARE_NULL_NAMESPACE_BYTES(Namespace, Type) \ - } /* Close namespace. */ \ - extern HB_INTERNAL const unsigned char _hb_Null_##Namespace##_##Type[Namespace::Type::null_size]; \ - template <> \ - struct Null<Namespace::Type> { \ - static Namespace::Type const & get_null () { \ - return *reinterpret_cast<const Namespace::Type *> (_hb_Null_##Namespace##_##Type); \ - } \ - }; \ - namespace Namespace { \ - static_assert (true, "") /* Require semicolon after. */ -#define DEFINE_NULL_NAMESPACE_BYTES(Namespace, Type) \ - const unsigned char _hb_Null_##Namespace##_##Type[Namespace::Type::null_size] - -/* Specializations for arbitrary-content Null objects expressed as struct initializer. */ -#define DECLARE_NULL_INSTANCE(Type) \ - extern HB_INTERNAL const Type _hb_Null_##Type; \ - template <> \ - struct Null<Type> { \ - static Type const & get_null () { \ - return _hb_Null_##Type; \ - } \ - }; \ - static_assert (true, "") /* Require semicolon after. */ -#define DEFINE_NULL_INSTANCE(Type) \ - const Type _hb_Null_##Type - -/* Global writable pool. Enlarge as necessary. */ - -/* To be fully correct, CrapPool must be thread_local. However, we do not rely on CrapPool - * for correct operation. It only exist to catch and divert program logic bugs instead of - * causing bad memory access. So, races there are not actually introducing incorrectness - * in the code. Has ~12kb binary size overhead to have it, also clang build fails with it. */ -extern HB_INTERNAL -/*thread_local*/ uint64_t _hb_CrapPool[(HB_NULL_POOL_SIZE + sizeof (uint64_t) - 1) / sizeof (uint64_t)]; - -/* CRAP pool: Common Region for Access Protection. */ -template <typename Type> -static inline Type& Crap () { - static_assert (hb_null_size (Type) <= HB_NULL_POOL_SIZE, "Increase HB_NULL_POOL_SIZE."); - Type *obj = reinterpret_cast<Type *> (_hb_CrapPool); - memcpy (obj, &Null (Type), sizeof (*obj)); - return *obj; -} -template <typename QType> -struct CrapHelper -{ - typedef hb_remove_const<hb_remove_reference<QType>> Type; - static Type & get_crap () { return Crap<Type> (); } -}; -#define Crap(Type) CrapHelper<Type>::get_crap () - -template <typename Type> -struct CrapOrNullHelper { - static Type & get () { return Crap (Type); } -}; -template <typename Type> -struct CrapOrNullHelper<const Type> { - static const Type & get () { return Null (Type); } -}; -#define CrapOrNull(Type) CrapOrNullHelper<Type>::get () - - -/* - * hb_nonnull_ptr_t - */ - -template <typename P> -struct hb_nonnull_ptr_t -{ - typedef hb_remove_pointer<P> T; - - hb_nonnull_ptr_t (T *v_ = nullptr) : v (v_) {} - T * operator = (T *v_) { return v = v_; } - T * operator -> () const { return get (); } - T & operator * () const { return *get (); } - T ** operator & () const { return &v; } - /* Only auto-cast to const types. */ - template <typename C> operator const C * () const { return get (); } - operator const char * () const { return (const char *) get (); } - T * get () const { return v ? v : const_cast<T *> (&Null (T)); } - T * get_raw () const { return v; } - - private: - T *v; -}; - - -#endif /* HB_NULL_HH */ |