/* * Copyright © 2007,2008,2009,2010 Red Hat, Inc. * Copyright © 2012,2018 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. * * Red Hat Author(s): Behdad Esfahbod * Google Author(s): Behdad Esfahbod #ifndef HB_DISPATCH_HH#define HB_DISPATCH_HH#include "hb.hh" /* * Dispatch template <typename Context, typename Return =hb_empty_t, unsigned int MaxDebugDepth=0>struct hb_dispatch_context_tprivate :/* https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern */ const Context* thiz () const { return static_cast <const Context *> (this ); }return static_cast < Context *> (this ); }public :const char *get_name () { return "UNKNOWN" ; }static constexpr unsigned max_debug_depth = MaxDebugDepth;typedef Return return_t;template <typename T, typename F>bool may_dispatch (const T *obj HB_UNUSED, const F *format HB_UNUSED) { return true ; }template <typename T, typename ...Ts>const T &obj, Ts&&... ds)return obj.dispatch (thiz (), std::forward<Ts> (ds)...); }static return_t no_dispatch_return_value () { return Context::default_return_value (); }static bool stop_sublookup_iteration (const return_t r HB_UNUSED) { return false ; }unsigned debug_depth = 0;#endif /* HB_DISPATCH_HH */ quality 100%
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