src/st-association.c

   1 /*
   2  * st-association.c
   3  *
   4  * Copyright (c) 2008 Vincent Geddes
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23 */
  24
  25 #include "st-association.h"
  26 #include "st-behavior.h"
  27
  28 st_uint
  29 st_association_hash (st_oop object)
  30 {
  31     return st_object_hash (ST_ASSOCIATION (object)->key) ^ st_object_hash (ST_ASSOCIATION (object)->value);
  32 }
  33
  34 bool
  35 st_association_equal (st_oop object, st_oop other)
  36 {
  37     struct st_association *m, *n;
  38
  39     if (st_object_class (other) != st_association_class)
  40         return false;
  41
  42     m = ST_ASSOCIATION (object);
  43     n = ST_ASSOCIATION (other);
  44
  45     return st_object_equal (m->key, n->key) && st_object_equal (m->value, n->value);
  46 }
  47
  48 st_oop
  49 st_association_new (st_oop key, st_oop value)
  50 {
  51     st_oop assoc = st_object_new (st_association_class);
  52
  53     ST_ASSOCIATION_KEY (assoc)   = key;
  54     ST_ASSOCIATION_VALUE (assoc) = value;
  55
  56     return assoc;
  57 }