1/*
2 * Copyright © 2018 Google, Inc.
3 *
4 * This is part of HarfBuzz, a text shaping library.
5 *
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
11 *
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16 * DAMAGE.
17 *
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23 *
24 * Google Author(s): Garret Rieger, Roderick Sheeter
25 */
26
27#ifndef HB_SUBSET_HH
28#define HB_SUBSET_HH
29
30
31#include "hb.hh"
32
33#include "hb-subset.h"
34
35#include "hb-machinery.hh"
36#include "hb-subset-input.hh"
37#include "hb-subset-plan.hh"
38
39struct hb_subset_context_t :
40 hb_dispatch_context_t<hb_subset_context_t, bool, HB_DEBUG_SUBSET>
41{
42 const char *get_name () { return "SUBSET"; }
43 static return_t default_return_value () { return true; }
44
45 private:
46 template <typename T, typename ...Ts> auto
47 _dispatch (const T &obj, hb_priority<1>, Ts&&... ds) HB_AUTO_RETURN
48 ( obj.subset (this, hb_forward<Ts> (ds)...) )
49 template <typename T, typename ...Ts> auto
50 _dispatch (const T &obj, hb_priority<0>, Ts&&... ds) HB_AUTO_RETURN
51 ( obj.dispatch (this, hb_forward<Ts> (ds)...) )
52 public:
53 template <typename T, typename ...Ts> auto
54 dispatch (const T &obj, Ts&&... ds) HB_AUTO_RETURN
55 ( _dispatch (obj, hb_prioritize, hb_forward<Ts> (ds)...) )
56
57 hb_subset_plan_t *plan;
58 hb_serialize_context_t *serializer;
59 unsigned int debug_depth;
60
61 hb_subset_context_t (hb_subset_plan_t *plan_,
62 hb_serialize_context_t *serializer_) :
63 plan (plan_),
64 serializer (serializer_),
65 debug_depth (0) {}
66};
67
68
69#endif /* HB_SUBSET_HH */
70