[HarfBuzz] harfbuzz: Branch 'master'

[Behdad Esfahbod]

 src/hb-aat-layout-common-private.hh |   21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

New commits:
commit 461a605fdec3361a038d3715adf615353c4f91fa
Author: Behdad Esfahbod <beh...@behdad.org>
Date:   Wed Jan 17 10:02:48 2018 -0800

    [aat] Allocate set dynamically

diff --git a/src/hb-aat-layout-common-private.hh 
b/src/hb-aat-layout-common-private.hh
index f912ed02..c93661c3 100644
--- a/src/hb-aat-layout-common-private.hh
+++ b/src/hb-aat-layout-common-private.hh
@@ -615,14 +615,12 @@ struct StateTableDriver
              machine (machine_),
              buffer (buffer_),
              num_glyphs (face_->get_num_glyphs ()),
-             last_zero (0)
-  {
-    dont_advance_set.init ();
-  }
+             last_zero (0),
+             dont_advance_set (nullptr) {}
 
   inline ~StateTableDriver (void)
   {
-    dont_advance_set.finish ();
+    hb_set_destroy (dont_advance_set);
   }
 
   template <typename context_t>
@@ -650,12 +648,17 @@ struct StateTableDriver
       if (entry->flags & context_t::DontAdvance)
       {
         if (!last_was_dont_advance)
-         dont_advance_set.clear ();
+       {
+         if (dont_advance_set)
+           dont_advance_set->clear ();
+         else
+           dont_advance_set = hb_set_create ();
+       }
 
        unsigned int key = info[buffer->idx].codepoint | (state << 16);
-       if (likely (!dont_advance_set.has (key)))
+       if (likely (!dont_advance_set->has (key)))
        {
-         dont_advance_set.add (key);
+         dont_advance_set->add (key);
          last_was_dont_advance = true;
        }
        else
@@ -684,7 +687,7 @@ struct StateTableDriver
   unsigned int last_zero;
 
   private:
-  hb_set_t dont_advance_set; /* Infinite-loop detection */
+  hb_set_t *dont_advance_set; /* Infinite-loop detection */
 };
 
 
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