summaryrefslogtreecommitdiff
path: root/includes/external/school/node_modules/graphql/jsutils/memoize3.js
blob: db98f3f42bee06946498051b1abdc8f9245cdb29 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = memoize3;

/**
 * Memoizes the provided three-argument function.
 */
function memoize3(fn) {
  var cache0;
  return function memoized(a1, a2, a3) {
    if (!cache0) {
      cache0 = new WeakMap();
    }

    var cache1 = cache0.get(a1);
    var cache2;

    if (cache1) {
      cache2 = cache1.get(a2);

      if (cache2) {
        var cachedValue = cache2.get(a3);

        if (cachedValue !== undefined) {
          return cachedValue;
        }
      }
    } else {
      cache1 = new WeakMap();
      cache0.set(a1, cache1);
    }

    if (!cache2) {
      cache2 = new WeakMap();
      cache1.set(a2, cache2);
    }

    var newValue = fn(a1, a2, a3);
    cache2.set(a3, newValue);
    return newValue;
  };
}