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Move code around

This commit is contained in:
Behdad Esfahbod 2018-05-23 20:12:23 -07:00
parent 65aeabd622
commit 673b764de0
1 changed files with 49 additions and 42 deletions
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91
src/hb-private.hh
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@ -315,7 +315,7 @@ static_assert ((sizeof (hb_var_int_t) == 4), "");
/* Misc */ /* Tiny functions */
/* /*
* Void! * Void!
@ -522,6 +522,54 @@ _hb_ceil_to_4 (unsigned int v)
/*
*
* Utility types
*
*/
/*
* Null objects
*/
/* Global nul-content Null pool. Enlarge as necessary. */
#define HB_NULL_POOL_SIZE 264
static_assert (HB_NULL_POOL_SIZE % sizeof (void *) == 0, "Align HB_NULL_POOL_SIZE.");
#ifdef HB_NO_VISIBILITY
static
#else
extern HB_INTERNAL
#endif
const void * const _hb_NullPool[HB_NULL_POOL_SIZE / sizeof (void *)]
#ifdef HB_NO_VISIBILITY
= {}
#endif
;
/* Generic nul-content Null objects. */
template <typename Type>
static inline const Type& Null (void) {
static_assert (sizeof (Type) <= HB_NULL_POOL_SIZE, "Increase HB_NULL_POOL_SIZE.");
return *reinterpret_cast<const Type *> (_hb_NullPool);
}
#define Null(Type) Null<Type>()
/* Specializaiton for arbitrary-content arbitrary-sized Null objects. */
#define DEFINE_NULL_DATA(Namespace, Type, data) \
} /* Close namespace. */ \
static const char _Null##Type[sizeof (Namespace::Type) + 1] = data; /* +1 is for nul-termination in data */ \
template <> \
/*static*/ inline const Namespace::Type& Null<Namespace::Type> (void) { \
return *reinterpret_cast<const Namespace::Type *> (_Null##Type); \
} \
namespace Namespace { \
/* The following line really exists such that we end in a place needing semicolon */ \
static_assert (Namespace::Type::min_size + 1 <= sizeof (_Null##Type), "Null pool too small. Enlarge.")
/* arrays and maps */ /* arrays and maps */
@ -1116,46 +1164,5 @@ round (double x)
#endif #endif
/*
* Null objects
*/
/* Global nul-content Null pool. Enlarge as necessary. */
#define HB_NULL_POOL_SIZE 264
static_assert (HB_NULL_POOL_SIZE % sizeof (void *) == 0, "Align HB_NULL_POOL_SIZE.");
#ifdef HB_NO_VISIBILITY
static
#else
extern HB_INTERNAL
#endif
const void * const _hb_NullPool[HB_NULL_POOL_SIZE / sizeof (void *)]
#ifdef HB_NO_VISIBILITY
= {}
#endif
;
/* Generic nul-content Null objects. */
template <typename Type>
static inline const Type& Null (void) {
static_assert (sizeof (Type) <= HB_NULL_POOL_SIZE, "Increase HB_NULL_POOL_SIZE.");
return *reinterpret_cast<const Type *> (_hb_NullPool);
}
#define Null(Type) Null<Type>()
/* Specializaiton for arbitrary-content arbitrary-sized Null objects. */
#define DEFINE_NULL_DATA(Namespace, Type, data) \
} /* Close namespace. */ \
static const char _Null##Type[sizeof (Namespace::Type) + 1] = data; /* +1 is for nul-termination in data */ \
template <> \
/*static*/ inline const Namespace::Type& Null<Namespace::Type> (void) { \
return *reinterpret_cast<const Namespace::Type *> (_Null##Type); \
} \
namespace Namespace { \
/* The following line really exists such that we end in a place needing semicolon */ \
static_assert (Namespace::Type::min_size + 1 <= sizeof (_Null##Type), "Null pool too small. Enlarge.")
#endif /* HB_PRIVATE_HH */ #endif /* HB_PRIVATE_HH */