More code shuffling

src/hb-font-private.hh

@@ -41,13 +41,6 @@ HB_BEGIN_DECLS
  * hb_font_funcs_t
  */
 
-struct _hb_font_funcs_t {
-  hb_object_header_t header;
-
-  hb_bool_t immutable;
-
-  /* Don't access these directly.  Call hb_font_get_*() instead. */
-
 #define HB_FONT_FUNCS_IMPLEMENT_CALLBACKS \
   HB_FONT_FUNC_IMPLEMENT (glyph) \
   HB_FONT_FUNC_IMPLEMENT (glyph_h_advance) \
@@ -57,8 +50,15 @@ struct _hb_font_funcs_t {
   HB_FONT_FUNC_IMPLEMENT (glyph_h_kerning) \
   HB_FONT_FUNC_IMPLEMENT (glyph_v_kerning) \
   HB_FONT_FUNC_IMPLEMENT (glyph_extents) \
-  HB_FONT_FUNC_IMPLEMENT (glyph_contour_point)
+  HB_FONT_FUNC_IMPLEMENT (glyph_contour_point) \
+  /* ^--- Add new callbacks here */
 
+struct _hb_font_funcs_t {
+  hb_object_header_t header;
+
+  hb_bool_t immutable;
+
+  /* Don't access these directly.  Call hb_font_get_*() instead. */
 
   struct {
 #define HB_FONT_FUNC_IMPLEMENT(name) hb_font_get_##name##_func_t name;

src/hb-font.cc

@@ -236,7 +236,8 @@ hb_font_funcs_destroy (hb_font_funcs_t *ffuncs)
 {
   if (!hb_object_destroy (ffuncs)) return;
 
-#define HB_FONT_FUNC_IMPLEMENT(name) if (ffuncs->destroy.name) ffuncs->destroy.name (ffuncs->user_data.name);
+#define HB_FONT_FUNC_IMPLEMENT(name) if (ffuncs->destroy.name) \
+  ffuncs->destroy.name (ffuncs->user_data.name);
   HB_FONT_FUNCS_IMPLEMENT_CALLBACKS
 #undef HB_FONT_FUNC_IMPLEMENT
 

src/hb-unicode-private.hh

@@ -43,6 +43,14 @@ HB_BEGIN_DECLS
  * hb_unicode_funcs_t
  */
 
+#define HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS \
+  HB_UNICODE_FUNC_IMPLEMENT (unsigned int, combining_class, 0) \
+  HB_UNICODE_FUNC_IMPLEMENT (unsigned int, eastasian_width, 1) \
+  HB_UNICODE_FUNC_IMPLEMENT (hb_unicode_general_category_t, general_category, HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER) \
+  HB_UNICODE_FUNC_IMPLEMENT (hb_codepoint_t, mirroring, unicode) \
+  HB_UNICODE_FUNC_IMPLEMENT (hb_script_t, script, HB_SCRIPT_UNKNOWN) \
+  /* ^--- Add new callbacks here */
+
 struct _hb_unicode_funcs_t {
   hb_object_header_t header;
 
@@ -50,43 +58,33 @@ struct _hb_unicode_funcs_t {
 
   bool immutable;
 
-#define IMPLEMENT(return_type, name) \
+#define HB_UNICODE_FUNC_IMPLEMENT(return_type, name, default_value) \
   inline return_type \
   get_##name (hb_codepoint_t unicode) \
   { return this->get.name (this, unicode, this->user_data.name); }
 
-  IMPLEMENT (unsigned int, combining_class)
-  IMPLEMENT (unsigned int, eastasian_width)
-  IMPLEMENT (hb_unicode_general_category_t, general_category)
-  IMPLEMENT (hb_codepoint_t, mirroring)
-  IMPLEMENT (hb_script_t, script)
+  HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
 
-#undef IMPLEMENT
+#undef HB_UNICODE_FUNC_IMPLEMENT
 
   /* Don't access these directly.  Call get_*() instead. */
 
   struct {
-    hb_unicode_get_combining_class_func_t	combining_class;
-    hb_unicode_get_eastasian_width_func_t	eastasian_width;
-    hb_unicode_get_general_category_func_t	general_category;
-    hb_unicode_get_mirroring_func_t		mirroring;
-    hb_unicode_get_script_func_t		script;
+#define HB_UNICODE_FUNC_IMPLEMENT(return_type, name, default_value) hb_unicode_get_##name##_func_t name;
+    HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_UNICODE_FUNC_IMPLEMENT
   } get;
 
   struct {
-    void 					*combining_class;
-    void 					*eastasian_width;
-    void 					*general_category;
-    void 					*mirroring;
-    void 					*script;
+#define HB_UNICODE_FUNC_IMPLEMENT(return_type, name, default_value) void *name;
+    HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_UNICODE_FUNC_IMPLEMENT
   } user_data;
 
   struct {
-    hb_destroy_func_t				combining_class;
-    hb_destroy_func_t				eastasian_width;
-    hb_destroy_func_t				general_category;
-    hb_destroy_func_t				mirroring;
-    hb_destroy_func_t				script;
+#define HB_UNICODE_FUNC_IMPLEMENT(return_type, name, default_value) hb_destroy_func_t name;
+    HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_UNICODE_FUNC_IMPLEMENT
   } destroy;
 };
 

src/hb-unicode.cc

@@ -39,45 +39,19 @@ HB_BEGIN_DECLS
  * hb_unicode_funcs_t
  */
 
-static unsigned int
-hb_unicode_get_combining_class_nil (hb_unicode_funcs_t *ufuncs    HB_UNUSED,
-				    hb_codepoint_t      unicode   HB_UNUSED,
-				    void               *user_data HB_UNUSED)
-{
-  return 0;
-}
-
-static unsigned int
-hb_unicode_get_eastasian_width_nil (hb_unicode_funcs_t *ufuncs    HB_UNUSED,
-				    hb_codepoint_t      unicode   HB_UNUSED,
-				    void               *user_data HB_UNUSED)
-{
-  return 1;
-}
-
-static hb_unicode_general_category_t
-hb_unicode_get_general_category_nil (hb_unicode_funcs_t *ufuncs    HB_UNUSED,
-				     hb_codepoint_t      unicode   HB_UNUSED,
-				     void               *user_data HB_UNUSED)
-{
-  return HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER;
-}
-
-static hb_codepoint_t
-hb_unicode_get_mirroring_nil (hb_unicode_funcs_t *ufuncs    HB_UNUSED,
-			      hb_codepoint_t      unicode   HB_UNUSED,
-			      void               *user_data HB_UNUSED)
-{
-  return unicode;
+#define HB_UNICODE_FUNC_IMPLEMENT(return_type, name, default_value)		\
+										\
+										\
+static return_type								\
+hb_unicode_get_##name##_nil (hb_unicode_funcs_t *ufuncs    HB_UNUSED,		\
+			     hb_codepoint_t      unicode   HB_UNUSED,		\
+			     void               *user_data HB_UNUSED)		\
+{										\
+  return default_value;								\
 }
 
-static hb_script_t
-hb_unicode_get_script_nil (hb_unicode_funcs_t *ufuncs    HB_UNUSED,
-			   hb_codepoint_t      unicode   HB_UNUSED,
-			   void               *user_data HB_UNUSED)
-{
-  return HB_SCRIPT_UNKNOWN;
-}
+  HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_UNICODE_FUNC_IMPLEMENT
 
 
 hb_unicode_funcs_t _hb_unicode_funcs_nil = {
@@ -86,11 +60,9 @@ hb_unicode_funcs_t _hb_unicode_funcs_nil = {
   NULL, /* parent */
   TRUE, /* immutable */
   {
-    hb_unicode_get_combining_class_nil,
-    hb_unicode_get_eastasian_width_nil,
-    hb_unicode_get_general_category_nil,
-    hb_unicode_get_mirroring_nil,
-    hb_unicode_get_script_nil,
+#define HB_UNICODE_FUNC_IMPLEMENT(return_type, name, default_value) hb_unicode_get_##name##_nil,
+    HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_UNICODE_FUNC_IMPLEMENT
   }
 };
 
@@ -142,13 +114,10 @@ hb_unicode_funcs_destroy (hb_unicode_funcs_t *ufuncs)
 {
   if (!hb_object_destroy (ufuncs)) return;
 
-#define DESTROY(name) if (ufuncs->destroy.name) ufuncs->destroy.name (ufuncs->user_data.name)
-  DESTROY (combining_class);
-  DESTROY (eastasian_width);
-  DESTROY (general_category);
-  DESTROY (mirroring);
-  DESTROY (script);
-#undef DESTROY
+#define HB_UNICODE_FUNC_IMPLEMENT(return_type, name, default_value) \
+  if (ufuncs->destroy.name) ufuncs->destroy.name (ufuncs->user_data.name);
+    HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_UNICODE_FUNC_IMPLEMENT
 
   hb_unicode_funcs_destroy (ufuncs->parent);
 
@@ -194,7 +163,7 @@ hb_unicode_funcs_get_parent (hb_unicode_funcs_t *ufuncs)
 }
 
 
-#define IMPLEMENT(return_type, name)                                           \
+#define HB_UNICODE_FUNC_IMPLEMENT(return_type, name, default_value)		\
 										\
 void										\
 hb_unicode_funcs_set_##name##_func (hb_unicode_funcs_t		   *ufuncs,	\
@@ -226,13 +195,8 @@ hb_unicode_get_##name (hb_unicode_funcs_t *ufuncs,                             \
   return ufuncs->get.name (ufuncs, unicode, ufuncs->user_data.name);		\
 }
 
-IMPLEMENT (unsigned int, combining_class)
-IMPLEMENT (unsigned int, eastasian_width)
-IMPLEMENT (hb_unicode_general_category_t, general_category)
-IMPLEMENT (hb_codepoint_t, mirroring)
-IMPLEMENT (hb_script_t, script)
-
-#undef IMPLEMENT
+    HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_UNICODE_FUNC_IMPLEMENT
 
 
 HB_END_DECLS