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-rw-r--r--thirdparty/harfbuzz/src/hb-machinery.hh14
1 files changed, 10 insertions, 4 deletions
diff --git a/thirdparty/harfbuzz/src/hb-machinery.hh b/thirdparty/harfbuzz/src/hb-machinery.hh
index 5046ac1933..e52a6a4124 100644
--- a/thirdparty/harfbuzz/src/hb-machinery.hh
+++ b/thirdparty/harfbuzz/src/hb-machinery.hh
@@ -194,7 +194,8 @@ struct hb_lazy_loader_t : hb_data_wrapper_t<Data, WheresData>
}
const Returned * operator -> () const { return get (); }
- const Returned & operator * () const { return *get (); }
+ template <typename U = Returned, hb_enable_if (!hb_is_same (U, void))>
+ const U & operator * () const { return *get (); }
explicit operator bool () const
{ return get_stored () != Funcs::get_null (); }
template <typename C> operator const C * () const { return get (); }
@@ -272,14 +273,19 @@ struct hb_face_lazy_loader_t : hb_lazy_loader_t<T,
hb_face_lazy_loader_t<T, WheresFace>,
hb_face_t, WheresFace> {};
-template <typename T, unsigned int WheresFace>
+template <typename T, unsigned int WheresFace, bool core=false>
struct hb_table_lazy_loader_t : hb_lazy_loader_t<T,
- hb_table_lazy_loader_t<T, WheresFace>,
+ hb_table_lazy_loader_t<T, WheresFace, core>,
hb_face_t, WheresFace,
hb_blob_t>
{
static hb_blob_t *create (hb_face_t *face)
- { return hb_sanitize_context_t ().reference_table<T> (face); }
+ {
+ auto c = hb_sanitize_context_t ();
+ if (core)
+ c.set_num_glyphs (0); // So we don't recurse ad infinitum...
+ return c.reference_table<T> (face);
+ }
static void destroy (hb_blob_t *p) { hb_blob_destroy (p); }
static const hb_blob_t *get_null ()