Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | |
| 6 | var MapBenchmark = new BenchmarkSuite('WeakMap', [1000], [ |
| 7 | new Benchmark('Set', false, false, 0, WeakMapSet), |
| 8 | new Benchmark('Has', false, false, 0, WeakMapHas, WeakMapSetup, |
| 9 | WeakMapTearDown), |
| 10 | new Benchmark('Get', false, false, 0, WeakMapGet, WeakMapSetup, |
| 11 | WeakMapTearDown), |
| 12 | new Benchmark('Delete', false, false, 0, WeakMapDelete, WeakMapSetup, |
| 13 | WeakMapTearDown), |
| 14 | ]); |
| 15 | |
| 16 | |
| 17 | var wm; |
| 18 | var N = 10; |
| 19 | var keys = []; |
| 20 | |
| 21 | |
| 22 | for (var i = 0; i < N * 2; i++) { |
| 23 | keys[i] = {}; |
| 24 | } |
| 25 | |
| 26 | |
| 27 | function WeakMapSetup() { |
| 28 | wm = new WeakMap; |
| 29 | for (var i = 0; i < N; i++) { |
| 30 | wm.set(keys[i], i); |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | |
| 35 | function WeakMapTearDown() { |
| 36 | wm = null; |
| 37 | } |
| 38 | |
| 39 | |
| 40 | function WeakMapSet() { |
| 41 | WeakMapSetup(); |
| 42 | WeakMapTearDown(); |
| 43 | } |
| 44 | |
| 45 | |
| 46 | function WeakMapHas() { |
| 47 | for (var i = 0; i < N; i++) { |
| 48 | if (!wm.has(keys[i])) { |
| 49 | throw new Error(); |
| 50 | } |
| 51 | } |
| 52 | for (var i = N; i < 2 * N; i++) { |
| 53 | if (wm.has(keys[i])) { |
| 54 | throw new Error(); |
| 55 | } |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | |
| 60 | function WeakMapGet() { |
| 61 | for (var i = 0; i < N; i++) { |
| 62 | if (wm.get(keys[i]) !== i) { |
| 63 | throw new Error(); |
| 64 | } |
| 65 | } |
| 66 | for (var i = N; i < 2 * N; i++) { |
| 67 | if (wm.get(keys[i]) !== undefined) { |
| 68 | throw new Error(); |
| 69 | } |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | |
| 74 | function WeakMapDelete() { |
| 75 | // This is run more than once per setup so we will end up deleting items |
| 76 | // more than once. Therefore, we do not the return value of delete. |
| 77 | for (var i = 0; i < N; i++) { |
| 78 | wm.delete(keys[i]); |
| 79 | } |
| 80 | } |