/src/harfbuzz/src/hb-map.cc
Line | Count | Source (jump to first uncovered line) |
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 | | #include "hb-map.hh" |
28 | | |
29 | | |
30 | | /** |
31 | | * SECTION:hb-map |
32 | | * @title: hb-map |
33 | | * @short_description: Object representing integer to integer mapping |
34 | | * @include: hb.h |
35 | | * |
36 | | * Map objects are integer-to-integer hash-maps. Currently they are |
37 | | * not used in the HarfBuzz public API, but are provided for client's |
38 | | * use if desired. |
39 | | **/ |
40 | | |
41 | | |
42 | | /** |
43 | | * hb_map_create: |
44 | | * |
45 | | * Creates a new, initially empty map. |
46 | | * |
47 | | * Return value: (transfer full): The new #hb_map_t |
48 | | * |
49 | | * Since: 1.7.7 |
50 | | **/ |
51 | | hb_map_t * |
52 | | hb_map_create () |
53 | 480k | { |
54 | 480k | hb_map_t *map; |
55 | | |
56 | 480k | if (!(map = hb_object_create<hb_map_t> ())) |
57 | 8.54k | return hb_map_get_empty (); |
58 | | |
59 | 472k | return map; |
60 | 480k | } |
61 | | |
62 | | /** |
63 | | * hb_map_get_empty: |
64 | | * |
65 | | * Fetches the singleton empty #hb_map_t. |
66 | | * |
67 | | * Return value: (transfer full): The empty #hb_map_t |
68 | | * |
69 | | * Since: 1.7.7 |
70 | | **/ |
71 | | hb_map_t * |
72 | | hb_map_get_empty () |
73 | 8.54k | { |
74 | 8.54k | return const_cast<hb_map_t *> (&Null (hb_map_t)); |
75 | 8.54k | } |
76 | | |
77 | | /** |
78 | | * hb_map_reference: (skip) |
79 | | * @map: A map |
80 | | * |
81 | | * Increases the reference count on a map. |
82 | | * |
83 | | * Return value: (transfer full): The map |
84 | | * |
85 | | * Since: 1.7.7 |
86 | | **/ |
87 | | hb_map_t * |
88 | | hb_map_reference (hb_map_t *map) |
89 | 0 | { |
90 | 0 | return hb_object_reference (map); |
91 | 0 | } |
92 | | |
93 | | /** |
94 | | * hb_map_destroy: (skip) |
95 | | * @map: A map |
96 | | * |
97 | | * Decreases the reference count on a map. When |
98 | | * the reference count reaches zero, the map is |
99 | | * destroyed, freeing all memory. |
100 | | * |
101 | | * Since: 1.7.7 |
102 | | **/ |
103 | | void |
104 | | hb_map_destroy (hb_map_t *map) |
105 | 480k | { |
106 | 480k | if (!hb_object_destroy (map)) return; |
107 | | |
108 | 472k | hb_free (map); |
109 | 472k | } |
110 | | |
111 | | /** |
112 | | * hb_map_set_user_data: (skip) |
113 | | * @map: A map |
114 | | * @key: The user-data key to set |
115 | | * @data: A pointer to the user data to set |
116 | | * @destroy: (nullable): A callback to call when @data is not needed anymore |
117 | | * @replace: Whether to replace an existing data with the same key |
118 | | * |
119 | | * Attaches a user-data key/data pair to the specified map. |
120 | | * |
121 | | * Return value: `true` if success, `false` otherwise |
122 | | * |
123 | | * Since: 1.7.7 |
124 | | **/ |
125 | | hb_bool_t |
126 | | hb_map_set_user_data (hb_map_t *map, |
127 | | hb_user_data_key_t *key, |
128 | | void * data, |
129 | | hb_destroy_func_t destroy, |
130 | | hb_bool_t replace) |
131 | 0 | { |
132 | 0 | return hb_object_set_user_data (map, key, data, destroy, replace); |
133 | 0 | } |
134 | | |
135 | | /** |
136 | | * hb_map_get_user_data: (skip) |
137 | | * @map: A map |
138 | | * @key: The user-data key to query |
139 | | * |
140 | | * Fetches the user data associated with the specified key, |
141 | | * attached to the specified map. |
142 | | * |
143 | | * Return value: (transfer none): A pointer to the user data |
144 | | * |
145 | | * Since: 1.7.7 |
146 | | **/ |
147 | | void * |
148 | | hb_map_get_user_data (const hb_map_t *map, |
149 | | hb_user_data_key_t *key) |
150 | 0 | { |
151 | 0 | return hb_object_get_user_data (map, key); |
152 | 0 | } |
153 | | |
154 | | |
155 | | /** |
156 | | * hb_map_allocation_successful: |
157 | | * @map: A map |
158 | | * |
159 | | * Tests whether memory allocation for a set was successful. |
160 | | * |
161 | | * Return value: `true` if allocation succeeded, `false` otherwise |
162 | | * |
163 | | * Since: 1.7.7 |
164 | | **/ |
165 | | hb_bool_t |
166 | | hb_map_allocation_successful (const hb_map_t *map) |
167 | 0 | { |
168 | 0 | return map->successful; |
169 | 0 | } |
170 | | |
171 | | /** |
172 | | * hb_map_copy: |
173 | | * @map: A map |
174 | | * |
175 | | * Allocate a copy of @map. |
176 | | * |
177 | | * Return value: (transfer full): Newly-allocated map. |
178 | | * |
179 | | * Since: 4.4.0 |
180 | | **/ |
181 | | hb_map_t * |
182 | | hb_map_copy (const hb_map_t *map) |
183 | 0 | { |
184 | 0 | hb_map_t *copy = hb_map_create (); |
185 | 0 | if (unlikely (copy->in_error ())) |
186 | 0 | return hb_map_get_empty (); |
187 | | |
188 | 0 | *copy = *map; |
189 | 0 | return copy; |
190 | 0 | } |
191 | | |
192 | | /** |
193 | | * hb_map_set: |
194 | | * @map: A map |
195 | | * @key: The key to store in the map |
196 | | * @value: The value to store for @key |
197 | | * |
198 | | * Stores @key:@value in the map. |
199 | | * |
200 | | * Since: 1.7.7 |
201 | | **/ |
202 | | void |
203 | | hb_map_set (hb_map_t *map, |
204 | | hb_codepoint_t key, |
205 | | hb_codepoint_t value) |
206 | 480k | { |
207 | | /* Immutable-safe. */ |
208 | 480k | map->set (key, value); |
209 | 480k | } |
210 | | |
211 | | /** |
212 | | * hb_map_get: |
213 | | * @map: A map |
214 | | * @key: The key to query |
215 | | * |
216 | | * Fetches the value stored for @key in @map. |
217 | | * |
218 | | * Since: 1.7.7 |
219 | | **/ |
220 | | hb_codepoint_t |
221 | | hb_map_get (const hb_map_t *map, |
222 | | hb_codepoint_t key) |
223 | 0 | { |
224 | 0 | return map->get (key); |
225 | 0 | } |
226 | | |
227 | | /** |
228 | | * hb_map_del: |
229 | | * @map: A map |
230 | | * @key: The key to delete |
231 | | * |
232 | | * Removes @key and its stored value from @map. |
233 | | * |
234 | | * Since: 1.7.7 |
235 | | **/ |
236 | | void |
237 | | hb_map_del (hb_map_t *map, |
238 | | hb_codepoint_t key) |
239 | 0 | { |
240 | | /* Immutable-safe. */ |
241 | 0 | map->del (key); |
242 | 0 | } |
243 | | |
244 | | /** |
245 | | * hb_map_has: |
246 | | * @map: A map |
247 | | * @key: The key to query |
248 | | * |
249 | | * Tests whether @key is an element of @map. |
250 | | * |
251 | | * Return value: `true` if @key is found in @map, `false` otherwise |
252 | | * |
253 | | * Since: 1.7.7 |
254 | | **/ |
255 | | hb_bool_t |
256 | | hb_map_has (const hb_map_t *map, |
257 | | hb_codepoint_t key) |
258 | 0 | { |
259 | 0 | return map->has (key); |
260 | 0 | } |
261 | | |
262 | | |
263 | | /** |
264 | | * hb_map_clear: |
265 | | * @map: A map |
266 | | * |
267 | | * Clears out the contents of @map. |
268 | | * |
269 | | * Since: 1.7.7 |
270 | | **/ |
271 | | void |
272 | | hb_map_clear (hb_map_t *map) |
273 | 0 | { |
274 | 0 | return map->clear (); |
275 | 0 | } |
276 | | |
277 | | /** |
278 | | * hb_map_is_empty: |
279 | | * @map: A map |
280 | | * |
281 | | * Tests whether @map is empty (contains no elements). |
282 | | * |
283 | | * Return value: `true` if @map is empty |
284 | | * |
285 | | * Since: 1.7.7 |
286 | | **/ |
287 | | hb_bool_t |
288 | | hb_map_is_empty (const hb_map_t *map) |
289 | 0 | { |
290 | 0 | return map->is_empty (); |
291 | 0 | } |
292 | | |
293 | | /** |
294 | | * hb_map_get_population: |
295 | | * @map: A map |
296 | | * |
297 | | * Returns the number of key-value pairs in the map. |
298 | | * |
299 | | * Return value: The population of @map |
300 | | * |
301 | | * Since: 1.7.7 |
302 | | **/ |
303 | | unsigned int |
304 | | hb_map_get_population (const hb_map_t *map) |
305 | 0 | { |
306 | 0 | return map->get_population (); |
307 | 0 | } |
308 | | |
309 | | /** |
310 | | * hb_map_is_equal: |
311 | | * @map: A map |
312 | | * @other: Another map |
313 | | * |
314 | | * Tests whether @map and @other are equal (contain the same |
315 | | * elements). |
316 | | * |
317 | | * Return value: `true` if the two maps are equal, `false` otherwise. |
318 | | * |
319 | | * Since: 4.3.0 |
320 | | **/ |
321 | | hb_bool_t |
322 | | hb_map_is_equal (const hb_map_t *map, |
323 | | const hb_map_t *other) |
324 | 0 | { |
325 | 0 | return map->is_equal (*other); |
326 | 0 | } |
327 | | |
328 | | /** |
329 | | * hb_map_hash: |
330 | | * @map: A map |
331 | | * |
332 | | * Creates a hash representing @map. |
333 | | * |
334 | | * Return value: |
335 | | * A hash of @map. |
336 | | * |
337 | | * Since: 4.4.0 |
338 | | **/ |
339 | | unsigned int |
340 | | hb_map_hash (const hb_map_t *map) |
341 | 0 | { |
342 | 0 | return map->hash (); |
343 | 0 | } |
344 | | |
345 | | /** |
346 | | * hb_map_update: |
347 | | * @map: A map |
348 | | * @other: Another map |
349 | | * |
350 | | * Add the contents of @other to @map. |
351 | | * |
352 | | * Since: REPLACEME |
353 | | **/ |
354 | | HB_EXTERN void |
355 | | hb_map_update (hb_map_t *map, |
356 | | const hb_map_t *other) |
357 | 0 | { |
358 | 0 | map->update (*other); |
359 | 0 | } |
360 | | |
361 | | /** |
362 | | * hb_map_next: |
363 | | * @map: A map |
364 | | * @idx: (inout): Iterator internal state |
365 | | * @key: (out): Key retrieved |
366 | | * @value: (out): Value retrieved |
367 | | * |
368 | | * Fetches the next key/value paire in @map. |
369 | | * |
370 | | * Set @idx to -1 to get started. |
371 | | * |
372 | | * If the map is modified during iteration, the behavior is undefined. |
373 | | * |
374 | | * The order in which the key/values are returned is undefined. |
375 | | * |
376 | | * Return value: `true` if there was a next value, `false` otherwise |
377 | | * |
378 | | * Since: REPLACEME |
379 | | **/ |
380 | | hb_bool_t |
381 | | hb_map_next (const hb_map_t *map, |
382 | | int *idx, |
383 | | hb_codepoint_t *key, |
384 | | hb_codepoint_t *value) |
385 | 0 | { |
386 | 0 | return map->next (idx, key, value); |
387 | 0 | } |
388 | | |
389 | | /** |
390 | | * hb_map_keys: |
391 | | * @map: A map |
392 | | * @keys: A set |
393 | | * |
394 | | * Add the keys of @map to @keys. |
395 | | * |
396 | | * Since: REPLACEME |
397 | | **/ |
398 | | void |
399 | | hb_map_keys (const hb_map_t *map, |
400 | | hb_set_t *keys) |
401 | 0 | { |
402 | 0 | map->keys (*keys); |
403 | 0 | } |
404 | | |
405 | | /** |
406 | | * hb_map_values: |
407 | | * @map: A map |
408 | | * @values: A set |
409 | | * |
410 | | * Add the values of @map to @values. |
411 | | * |
412 | | * Since: REPLACEME |
413 | | **/ |
414 | | void |
415 | | hb_map_values (const hb_map_t *map, |
416 | | hb_set_t *values) |
417 | 0 | { |
418 | 0 | map->values (*values); |
419 | 0 | } |