diff options
Diffstat (limited to 'thirdparty/harfbuzz/src/hb-unicode.cc')
| -rw-r--r-- | thirdparty/harfbuzz/src/hb-unicode.cc | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/thirdparty/harfbuzz/src/hb-unicode.cc b/thirdparty/harfbuzz/src/hb-unicode.cc index c1795dc7f2..9a6471e52c 100644 --- a/thirdparty/harfbuzz/src/hb-unicode.cc +++ b/thirdparty/harfbuzz/src/hb-unicode.cc @@ -377,20 +377,30 @@ hb_unicode_funcs_set_##name##_func (hb_unicode_funcs_t *ufuncs, \ hb_destroy_func_t destroy) \ { \ if (hb_object_is_immutable (ufuncs)) \ - return; \ + goto fail; \ + \ + if (!func) \ + { \ + if (destroy) \ + destroy (user_data); \ + destroy = nullptr; \ + user_data = ufuncs->parent->user_data.name; \ + } \ \ if (ufuncs->destroy.name) \ ufuncs->destroy.name (ufuncs->user_data.name); \ \ - if (func) { \ + if (func) \ ufuncs->func.name = func; \ - ufuncs->user_data.name = user_data; \ - ufuncs->destroy.name = destroy; \ - } else { \ + else \ ufuncs->func.name = ufuncs->parent->func.name; \ - ufuncs->user_data.name = ufuncs->parent->user_data.name; \ - ufuncs->destroy.name = nullptr; \ - } \ + ufuncs->user_data.name = user_data; \ + ufuncs->destroy.name = destroy; \ + return; \ + \ +fail: \ + if (destroy) \ + destroy (user_data); \ } HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS |