hb-subset.hh - mozsearch

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/*

 * Copyright © 2018  Google, Inc.

 *  This is part of HarfBuzz, a text shaping library.

 * Permission is hereby granted, without written agreement and without

 * license or royalty fees, to use, copy, modify, and distribute this

 * software and its documentation for any purpose, provided that the

 * above copyright notice and the following two paragraphs appear in

 * all copies of this software.

 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR

 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES

 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN

 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH

 * DAMAGE.

 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,

 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS

 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO

 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

 * Google Author(s): Garret Rieger, Roderick Sheeter

*/

#ifndef HB_SUBSET_HH

#define HB_SUBSET_HH

#include "hb.hh"

#include "hb-subset.h"

#include "hb-machinery.hh"

#include "hb-serialize.hh"

#include "hb-subset-input.hh"

#include "hb-subset-plan.hh"

struct hb_subset_context_t :

       hb_dispatch_context_t<hb_subset_context_t, bool, HB_DEBUG_SUBSET>

  const char *get_name () { return "SUBSET"; }

  static return_t default_return_value () { return true; }

  private:

  template <typename T, typename ...Ts> auto

  _dispatch (const T &obj, hb_priority<1>, Ts&&... ds) HB_AUTO_RETURN

  ( obj.subset (this, std::forward<Ts> (ds)...) )

  template <typename T, typename ...Ts> auto

  _dispatch (const T &obj, hb_priority<0>, Ts&&... ds) HB_AUTO_RETURN

  ( obj.dispatch (this, std::forward<Ts> (ds)...) )

  public:

  template <typename T, typename ...Ts> auto

  dispatch (const T &obj, Ts&&... ds) HB_AUTO_RETURN

  ( _dispatch (obj, hb_prioritize, std::forward<Ts> (ds)...) )

  hb_blob_t *source_blob;

  hb_subset_plan_t *plan;

  hb_serialize_context_t *serializer;

  hb_tag_t table_tag;

  hb_subset_context_t (hb_blob_t *source_blob_,

		       hb_subset_plan_t *plan_,

		       hb_serialize_context_t *serializer_,

		       hb_tag_t table_tag_) :

		        source_blob (source_blob_),

			plan (plan_),

			serializer (serializer_),

			table_tag (table_tag_) {}

};

#endif /* HB_SUBSET_HH */