From a30482718491e3455365167e1c85981c8c0f542b Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Wed, 8 May 2019 15:08:10 -0700
Subject: [PATCH] [map] Add .values() iterator

---
 src/hb-map.hh    | 6 +++++-
 src/test-iter.cc | 8 ++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/hb-map.hh b/src/hb-map.hh
index a5dedac..1c2fe14 100644
--- a/src/hb-map.hh
+++ b/src/hb-map.hh
@@ -216,12 +216,16 @@ struct hb_hashmap_t
     | hb_filter (&item_t::is_real)
     | hb_map (&item_t::get_pair)
   )
-
   auto keys () const HB_AUTO_RETURN
   (
     + iter()
     | hb_map (&hb_pair_t<K, V>::first)
   )
+  auto values () const HB_AUTO_RETURN
+  (
+    + iter()
+    | hb_map (&hb_pair_t<K, V>::second)
+  )
 
   protected:
 
diff --git a/src/test-iter.cc b/src/test-iter.cc
index 69f2de9..0a0e4d1 100644
--- a/src/test-iter.cc
+++ b/src/test-iter.cc
@@ -215,6 +215,14 @@ main (int argc, char **argv)
   using map_key_t = decltype (*m.keys());
   + hb_iter (m.keys ())
   | hb_filter ([] (map_key_t k) { return k < 42; })
+  | hb_drain
+  ;
+
+  m.values ();
+  using map_value_t = decltype (*m.values());
+  + hb_iter (m.values ())
+  | hb_filter ([] (map_value_t k) { return k < 42; })
+  | hb_drain
   ;
 
   unsigned int temp1 = 10;
-- 
2.7.4