commit 273ed6127bd9471fd11b3c1c7f232638f1ff1dba
author Behdad Esfahbod <behdad@behdad.org> Thu May 02 14:04:51 2019 -0700
committer Behdad Esfahbod <behdad@behdad.org> Thu May 02 14:04:51 2019 -0700
tree 55ebe951b615b4fecd56d419c3e32b87a37f393e
parent bf22338f49fb1711f7cbcad2d9949d7962cdc0bc

[serializer] Add serialize_copy()

src/hb-open-type.hh

diff --git a/src/hb-open-type.hh b/src/hb-open-type.hh
index bde0596..17e8d2a 100644
--- a/src/hb-open-type.hh
+++ b/src/hb-open-type.hh
@@ -305,6 +305,20 @@
     return ret;
   }
 
+  template <typename T>
+  bool serialize_copy (hb_serialize_context_t *c, const T &src, const void *base)
+  {
+    *this = 0;
+    if (has_null && &src == &Null (T))
+      return false;
+
+    c->push ();
+
+    c->copy (src);
+
+    c->add_link (*this, c->pop_pack (), base);
+  }
+
   bool sanitize_shallow (hb_sanitize_context_t *c, const void *base) const
   {
     TRACE_SANITIZE (this);