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[HB] Add hb_unicode_funcs_make_immutable()

This commit is contained in:
Behdad Esfahbod 2009-08-10 23:25:28 -04:00
parent af9e104028
commit eb27ec0cef
3 changed files with 21 additions and 5 deletions
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2
src/hb-unicode-private.h
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@ -40,6 +40,8 @@ HB_BEGIN_DECLS
struct _hb_unicode_funcs_t { struct _hb_unicode_funcs_t {
hb_reference_count_t ref_count; hb_reference_count_t ref_count;
hb_bool_t immutable;
hb_unicode_get_general_category_func_t get_general_category; hb_unicode_get_general_category_func_t get_general_category;
hb_unicode_get_combining_class_func_t get_combining_class; hb_unicode_get_combining_class_func_t get_combining_class;
hb_unicode_get_mirroring_char_func_t get_mirroring_char; hb_unicode_get_mirroring_char_func_t get_mirroring_char;

22
src/hb-unicode.c
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@ -41,6 +41,8 @@ static unsigned int hb_unicode_get_eastasian_width_nil (hb_codepoint_t unicode)
hb_unicode_funcs_t _hb_unicode_funcs_nil = { hb_unicode_funcs_t _hb_unicode_funcs_nil = {
HB_REFERENCE_COUNT_INVALID, /* ref_count */ HB_REFERENCE_COUNT_INVALID, /* ref_count */
TRUE, /* immutable */
hb_unicode_get_general_category_nil, hb_unicode_get_general_category_nil,
hb_unicode_get_combining_class_nil, hb_unicode_get_combining_class_nil,
hb_unicode_get_mirroring_char_nil, hb_unicode_get_mirroring_char_nil,
@ -92,16 +94,26 @@ hb_unicode_funcs_copy (hb_unicode_funcs_t *other_ufuncs)
*ufuncs = *other_ufuncs; *ufuncs = *other_ufuncs;
HB_OBJECT_DO_INIT (ufuncs); HB_OBJECT_DO_INIT (ufuncs);
ufuncs->immutable = FALSE;
return ufuncs; return ufuncs;
} }
void
hb_unicode_funcs_make_immutable (hb_unicode_funcs_t *ufuncs)
{
if (HB_OBJECT_IS_INERT (ufuncs))
return;
ufuncs->immutable = TRUE;
}
void void
hb_unicode_funcs_set_mirroring_char_func (hb_unicode_funcs_t *ufuncs, hb_unicode_funcs_set_mirroring_char_func (hb_unicode_funcs_t *ufuncs,
hb_unicode_get_mirroring_char_func_t mirroring_char_func) hb_unicode_get_mirroring_char_func_t mirroring_char_func)
{ {
if (HB_OBJECT_IS_INERT (ufuncs)) if (ufuncs->immutable)
return; return;
ufuncs->get_mirroring_char = mirroring_char_func ? mirroring_char_func : hb_unicode_get_mirroring_char_nil; ufuncs->get_mirroring_char = mirroring_char_func ? mirroring_char_func : hb_unicode_get_mirroring_char_nil;
@ -111,7 +123,7 @@ void
hb_unicode_funcs_set_general_category_func (hb_unicode_funcs_t *ufuncs, hb_unicode_funcs_set_general_category_func (hb_unicode_funcs_t *ufuncs,
hb_unicode_get_general_category_func_t general_category_func) hb_unicode_get_general_category_func_t general_category_func)
{ {
if (HB_OBJECT_IS_INERT (ufuncs)) if (ufuncs->immutable)
return; return;
ufuncs->get_general_category = general_category_func ? general_category_func : hb_unicode_get_general_category_nil; ufuncs->get_general_category = general_category_func ? general_category_func : hb_unicode_get_general_category_nil;
@ -121,7 +133,7 @@ void
hb_unicode_funcs_set_script_func (hb_unicode_funcs_t *ufuncs, hb_unicode_funcs_set_script_func (hb_unicode_funcs_t *ufuncs,
hb_unicode_get_script_func_t script_func) hb_unicode_get_script_func_t script_func)
{ {
if (HB_OBJECT_IS_INERT (ufuncs)) if (ufuncs->immutable)
return; return;
ufuncs->get_script = script_func ? script_func : hb_unicode_get_script_nil; ufuncs->get_script = script_func ? script_func : hb_unicode_get_script_nil;
@ -131,7 +143,7 @@ void
hb_unicode_funcs_set_combining_class_func (hb_unicode_funcs_t *ufuncs, hb_unicode_funcs_set_combining_class_func (hb_unicode_funcs_t *ufuncs,
hb_unicode_get_combining_class_func_t combining_class_func) hb_unicode_get_combining_class_func_t combining_class_func)
{ {
if (HB_OBJECT_IS_INERT (ufuncs)) if (ufuncs->immutable)
return; return;
ufuncs->get_combining_class = combining_class_func ? combining_class_func : hb_unicode_get_combining_class_nil; ufuncs->get_combining_class = combining_class_func ? combining_class_func : hb_unicode_get_combining_class_nil;
@ -141,7 +153,7 @@ void
hb_unicode_funcs_set_eastasian_width_func (hb_unicode_funcs_t *ufuncs, hb_unicode_funcs_set_eastasian_width_func (hb_unicode_funcs_t *ufuncs,
hb_unicode_get_eastasian_width_func_t eastasian_width_func) hb_unicode_get_eastasian_width_func_t eastasian_width_func)
{ {
if (HB_OBJECT_IS_INERT (ufuncs)) if (ufuncs->immutable)
return; return;
ufuncs->get_eastasian_width = eastasian_width_func ? eastasian_width_func : hb_unicode_get_eastasian_width_nil; ufuncs->get_eastasian_width = eastasian_width_func ? eastasian_width_func : hb_unicode_get_eastasian_width_nil;

2
src/hb-unicode.h
View File

@ -180,6 +180,8 @@ hb_unicode_funcs_destroy (hb_unicode_funcs_t *ufuncs);
hb_unicode_funcs_t * hb_unicode_funcs_t *
hb_unicode_funcs_copy (hb_unicode_funcs_t *ufuncs); hb_unicode_funcs_copy (hb_unicode_funcs_t *ufuncs);
void
hb_unicode_funcs_make_immutable (hb_unicode_funcs_t *ufuncs);
/* funcs */ /* funcs */