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-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/hb-private.hh340
1 files changed, 39 insertions, 301 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-private.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-private.hh
index b139ed67289..b6d13bd3084 100644
--- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-private.hh
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-private.hh
@@ -44,16 +44,14 @@
#include <stddef.h>
#include <string.h>
#include <assert.h>
-
-/* We only use these two for debug output. However, the debug code is
- * always seen by the compiler (and optimized out in non-debug builds.
- * If including these becomes a problem, we can start thinking about
- * someway around that. */
-#include <stdio.h>
#include <errno.h>
+#include <stdio.h>
#include <stdarg.h>
+#define HB_PASTE1(a,b) a##b
+#define HB_PASTE(a,b) HB_PASTE1(a,b)
+
/* Compile-time custom allocator support. */
#if defined(hb_malloc_impl) \
@@ -76,36 +74,19 @@ extern "C" void hb_free_impl(void *ptr);
#if __cplusplus < 201103L
-// Null pointer literal
-// Source: SC22/WG21/N2431 = J16/07-0301
-// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf
-
-const // this is a const object...
-class {
-public:
- template<class T> // convertible to any type
- operator T*() const { // of null non-member
- return 0; // pointer...
- }
- template<class C, class T> // or any type of null
- operator T C::*() const { // member pointer...
- return 0;
- }
-private:
- void operator&() const; // whose address can't be taken
-} _hb_nullptr = {}; // and whose name is nullptr
-#define nullptr _hb_nullptr
+#ifndef nullptr
+#define nullptr NULL
+#endif
// Static assertions
#ifndef static_assert
-#define _PASTE1(a,b) a##b
-#define _PASTE(a,b) _PASTE1(a,b)
#define static_assert(e, msg) \
- HB_UNUSED typedef int _PASTE(static_assertion_failed_at_line_, __LINE__) [(e) ? 1 : -1]
+ HB_UNUSED typedef int HB_PASTE(static_assertion_failed_at_line_, __LINE__) [(e) ? 1 : -1]
#endif // static_assert
#endif // __cplusplus < 201103L
+#define _GNU_SOURCE 1
#if (defined(__GNUC__) || defined(__clang__)) && defined(__OPTIMIZE__)
#define likely(expr) (__builtin_expect (!!(expr), 1))
@@ -386,11 +367,6 @@ _hb_unsigned_int_mul_overflows (unsigned int count, unsigned int size)
}
-/* Type of bsearch() / qsort() compare function */
-typedef int (*hb_compare_func_t) (const void *, const void *);
-
-
-
/* arrays and maps */
@@ -494,12 +470,12 @@ struct hb_prealloced_array_t
inline void qsort (void)
{
- ::qsort (array, len, sizeof (Type), (hb_compare_func_t) Type::cmp);
+ ::qsort (array, len, sizeof (Type), Type::cmp);
}
inline void qsort (unsigned int start, unsigned int end)
{
- ::qsort (array + start, end - start, sizeof (Type), (hb_compare_func_t) Type::cmp);
+ ::qsort (array + start, end - start, sizeof (Type), Type::cmp);
}
template <typename T>
@@ -559,7 +535,7 @@ struct hb_auto_array_t : hb_prealloced_array_t <Type>
template <typename item_t, typename lock_t>
struct hb_lockable_set_t
{
- hb_prealloced_array_t <item_t, 2> items;
+ hb_prealloced_array_t <item_t, 1> items;
inline void init (void) { items.init (); }
@@ -664,22 +640,6 @@ static inline unsigned char TOUPPER (unsigned char c)
static inline unsigned char TOLOWER (unsigned char c)
{ return (c >= 'A' && c <= 'Z') ? c - 'A' + 'a' : c; }
-#define HB_TAG_CHAR4(s) (HB_TAG(((const char *) s)[0], \
- ((const char *) s)[1], \
- ((const char *) s)[2], \
- ((const char *) s)[3]))
-
-
-/* C++ helpers */
-
-/* Makes class uncopyable. Use in private: section. */
-#define NO_COPY(T) \
- T (const T &o); \
- T &operator = (const T &o)
-
-
-/* Debug */
-
/* HB_NDEBUG disables some sanity checks that are very safe to disable and
* should be disabled in production systems. If NDEBUG is defined, enable
@@ -690,255 +650,6 @@ static inline unsigned char TOLOWER (unsigned char c)
#define HB_NDEBUG
#endif
-#ifndef HB_DEBUG
-#define HB_DEBUG 0
-#endif
-
-static inline bool
-_hb_debug (unsigned int level,
- unsigned int max_level)
-{
- return level < max_level;
-}
-
-#define DEBUG_LEVEL_ENABLED(WHAT, LEVEL) (_hb_debug ((LEVEL), HB_DEBUG_##WHAT))
-#define DEBUG_ENABLED(WHAT) (DEBUG_LEVEL_ENABLED (WHAT, 0))
-
-static inline void
-_hb_print_func (const char *func)
-{
- if (func)
- {
- unsigned int func_len = strlen (func);
- /* Skip "static" */
- if (0 == strncmp (func, "static ", 7))
- func += 7;
- /* Skip "typename" */
- if (0 == strncmp (func, "typename ", 9))
- func += 9;
- /* Skip return type */
- const char *space = strchr (func, ' ');
- if (space)
- func = space + 1;
- /* Skip parameter list */
- const char *paren = strchr (func, '(');
- if (paren)
- func_len = paren - func;
- fprintf (stderr, "%.*s", func_len, func);
- }
-}
-
-template <int max_level> static inline void
-_hb_debug_msg_va (const char *what,
- const void *obj,
- const char *func,
- bool indented,
- unsigned int level,
- int level_dir,
- const char *message,
- va_list ap) HB_PRINTF_FUNC(7, 0);
-template <int max_level> static inline void
-_hb_debug_msg_va (const char *what,
- const void *obj,
- const char *func,
- bool indented,
- unsigned int level,
- int level_dir,
- const char *message,
- va_list ap)
-{
- if (!_hb_debug (level, max_level))
- return;
-
- fprintf (stderr, "%-10s", what ? what : "");
-
- if (obj)
- fprintf (stderr, "(%0*lx) ", (unsigned int) (2 * sizeof (void *)), (unsigned long) obj);
- else
- fprintf (stderr, " %*s ", (unsigned int) (2 * sizeof (void *)), "");
-
- if (indented) {
-#define VBAR "\342\224\202" /* U+2502 BOX DRAWINGS LIGHT VERTICAL */
-#define VRBAR "\342\224\234" /* U+251C BOX DRAWINGS LIGHT VERTICAL AND RIGHT */
-#define DLBAR "\342\225\256" /* U+256E BOX DRAWINGS LIGHT ARC DOWN AND LEFT */
-#define ULBAR "\342\225\257" /* U+256F BOX DRAWINGS LIGHT ARC UP AND LEFT */
-#define LBAR "\342\225\264" /* U+2574 BOX DRAWINGS LIGHT LEFT */
- static const char bars[] =
- VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR
- VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR
- VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR
- VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR
- VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR VBAR;
- fprintf (stderr, "%2u %s" VRBAR "%s",
- level,
- bars + sizeof (bars) - 1 - MIN ((unsigned int) sizeof (bars) - 1, (unsigned int) (sizeof (VBAR) - 1) * level),
- level_dir ? (level_dir > 0 ? DLBAR : ULBAR) : LBAR);
- } else
- fprintf (stderr, " " VRBAR LBAR);
-
- _hb_print_func (func);
-
- if (message)
- {
- fprintf (stderr, ": ");
- vfprintf (stderr, message, ap);
- }
-
- fprintf (stderr, "\n");
-}
-template <> inline void
-_hb_debug_msg_va<0> (const char *what HB_UNUSED,
- const void *obj HB_UNUSED,
- const char *func HB_UNUSED,
- bool indented HB_UNUSED,
- unsigned int level HB_UNUSED,
- int level_dir HB_UNUSED,
- const char *message HB_UNUSED,
- va_list ap HB_UNUSED) {}
-
-template <int max_level> static inline void
-_hb_debug_msg (const char *what,
- const void *obj,
- const char *func,
- bool indented,
- unsigned int level,
- int level_dir,
- const char *message,
- ...) HB_PRINTF_FUNC(7, 8);
-template <int max_level> static inline void
-_hb_debug_msg (const char *what,
- const void *obj,
- const char *func,
- bool indented,
- unsigned int level,
- int level_dir,
- const char *message,
- ...)
-{
- va_list ap;
- va_start (ap, message);
- _hb_debug_msg_va<max_level> (what, obj, func, indented, level, level_dir, message, ap);
- va_end (ap);
-}
-template <> inline void
-_hb_debug_msg<0> (const char *what HB_UNUSED,
- const void *obj HB_UNUSED,
- const char *func HB_UNUSED,
- bool indented HB_UNUSED,
- unsigned int level HB_UNUSED,
- int level_dir HB_UNUSED,
- const char *message HB_UNUSED,
- ...) HB_PRINTF_FUNC(7, 8);
-template <> inline void
-_hb_debug_msg<0> (const char *what HB_UNUSED,
- const void *obj HB_UNUSED,
- const char *func HB_UNUSED,
- bool indented HB_UNUSED,
- unsigned int level HB_UNUSED,
- int level_dir HB_UNUSED,
- const char *message HB_UNUSED,
- ...) {}
-
-#define DEBUG_MSG_LEVEL(WHAT, OBJ, LEVEL, LEVEL_DIR, ...) _hb_debug_msg<HB_DEBUG_##WHAT> (#WHAT, (OBJ), nullptr, true, (LEVEL), (LEVEL_DIR), __VA_ARGS__)
-#define DEBUG_MSG(WHAT, OBJ, ...) _hb_debug_msg<HB_DEBUG_##WHAT> (#WHAT, (OBJ), nullptr, false, 0, 0, __VA_ARGS__)
-#define DEBUG_MSG_FUNC(WHAT, OBJ, ...) _hb_debug_msg<HB_DEBUG_##WHAT> (#WHAT, (OBJ), HB_FUNC, false, 0, 0, __VA_ARGS__)
-
-
-/*
- * Printer
- */
-
-template <typename T>
-struct hb_printer_t {
- const char *print (const T&) { return "something"; }
-};
-
-template <>
-struct hb_printer_t<bool> {
- const char *print (bool v) { return v ? "true" : "false"; }
-};
-
-template <>
-struct hb_printer_t<hb_void_t> {
- const char *print (hb_void_t) { return ""; }
-};
-
-
-/*
- * Trace
- */
-
-template <typename T>
-static inline void _hb_warn_no_return (bool returned)
-{
- if (unlikely (!returned)) {
- fprintf (stderr, "OUCH, returned with no call to return_trace(). This is a bug, please report.\n");
- }
-}
-template <>
-/*static*/ inline void _hb_warn_no_return<hb_void_t> (bool returned HB_UNUSED)
-{}
-
-template <int max_level, typename ret_t>
-struct hb_auto_trace_t {
- explicit inline hb_auto_trace_t (unsigned int *plevel_,
- const char *what_,
- const void *obj_,
- const char *func,
- const char *message,
- ...) : plevel (plevel_), what (what_), obj (obj_), returned (false)
- {
- if (plevel) ++*plevel;
-
- va_list ap;
- va_start (ap, message);
- _hb_debug_msg_va<max_level> (what, obj, func, true, plevel ? *plevel : 0, +1, message, ap);
- va_end (ap);
- }
- inline ~hb_auto_trace_t (void)
- {
- _hb_warn_no_return<ret_t> (returned);
- if (!returned) {
- _hb_debug_msg<max_level> (what, obj, nullptr, true, plevel ? *plevel : 1, -1, " ");
- }
- if (plevel) --*plevel;
- }
-
- inline ret_t ret (ret_t v, unsigned int line = 0)
- {
- if (unlikely (returned)) {
- fprintf (stderr, "OUCH, double calls to return_trace(). This is a bug, please report.\n");
- return v;
- }
-
- _hb_debug_msg<max_level> (what, obj, nullptr, true, plevel ? *plevel : 1, -1,
- "return %s (line %d)",
- hb_printer_t<ret_t>().print (v), line);
- if (plevel) --*plevel;
- plevel = nullptr;
- returned = true;
- return v;
- }
-
- private:
- unsigned int *plevel;
- const char *what;
- const void *obj;
- bool returned;
-};
-template <typename ret_t> /* Optimize when tracing is disabled */
-struct hb_auto_trace_t<0, ret_t> {
- explicit inline hb_auto_trace_t (unsigned int *plevel_ HB_UNUSED,
- const char *what HB_UNUSED,
- const void *obj HB_UNUSED,
- const char *func HB_UNUSED,
- const char *message HB_UNUSED,
- ...) {}
-
- inline ret_t ret (ret_t v, unsigned int line HB_UNUSED = 0) { return v; }
-};
-
-#define return_trace(RET) return trace.ret (RET, __LINE__)
/* Misc */
@@ -1156,4 +867,31 @@ hb_options (void)
/* Size signifying variable-sized array */
#define VAR 1
+
+/* String type. */
+
+struct hb_string_t
+{
+ inline hb_string_t (void) : bytes (nullptr), len (0) {}
+ inline hb_string_t (const char *bytes_, unsigned int len_) : bytes (bytes_), len (len_) {}
+
+ inline int cmp (const hb_string_t &a) const
+ {
+ if (len != a.len)
+ return (int) a.len - (int) len;
+
+ return memcmp (a.bytes, bytes, len);
+ }
+ static inline int cmp (const void *pa, const void *pb)
+ {
+ hb_string_t *a = (hb_string_t *) pa;
+ hb_string_t *b = (hb_string_t *) pb;
+ return b->cmp (*a);
+ }
+
+ const char *bytes;
+ unsigned int len;
+};
+
+
#endif /* HB_PRIVATE_HH */