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): Behdad Esfahbod
  25  */
  26 
  27 #ifndef HB_H_IN
  28 #error "Include <hb.h> instead."
  29 #endif
  30 
  31 #ifndef HB_MAP_H
  32 #define HB_MAP_H
  33 
  34 #include "hb-common.h"
  35 
  36 HB_BEGIN_DECLS
  37 
  38 
  39 /*
  40  * Since: 1.7.7
  41  */
  42 #define HB_MAP_VALUE_INVALID ((hb_codepoint_t) -1)
  43 
  44 typedef struct hb_map_t hb_map_t;
  45 
  46 
  47 HB_EXTERN hb_map_t *
  48 hb_map_create (void);
  49 
  50 HB_EXTERN hb_map_t *
  51 hb_map_get_empty (void);
  52 
  53 HB_EXTERN hb_map_t *
  54 hb_map_reference (hb_map_t *map);
  55 
  56 HB_EXTERN void
  57 hb_map_destroy (hb_map_t *map);
  58 
  59 HB_EXTERN hb_bool_t
  60 hb_map_set_user_data (hb_map_t           *map,
  61                       hb_user_data_key_t *key,
  62                       void *              data,
  63                       hb_destroy_func_t   destroy,
  64                       hb_bool_t           replace);
  65 
  66 HB_EXTERN void *
  67 hb_map_get_user_data (hb_map_t           *map,
  68                       hb_user_data_key_t *key);
  69 
  70 
  71 /* Returns false if allocation has failed before */
  72 HB_EXTERN hb_bool_t
  73 hb_map_allocation_successful (const hb_map_t *map);
  74 
  75 HB_EXTERN void
  76 hb_map_clear (hb_map_t *map);
  77 
  78 HB_EXTERN hb_bool_t
  79 hb_map_is_empty (const hb_map_t *map);
  80 
  81 HB_EXTERN unsigned int
  82 hb_map_get_population (const hb_map_t *map);
  83 
  84 HB_EXTERN void
  85 hb_map_set (hb_map_t       *map,
  86             hb_codepoint_t  key,
  87             hb_codepoint_t  value);
  88 
  89 HB_EXTERN hb_codepoint_t
  90 hb_map_get (const hb_map_t *map,
  91             hb_codepoint_t  key);
  92 
  93 HB_EXTERN void
  94 hb_map_del (hb_map_t       *map,
  95             hb_codepoint_t  key);
  96 
  97 HB_EXTERN hb_bool_t
  98 hb_map_has (const hb_map_t *map,
  99             hb_codepoint_t  key);
 100 
 101 
 102 HB_END_DECLS
 103 
 104 #endif /* HB_MAP_H */