v8/test/js-perf-test/Collections/weakset.js

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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
var SetBenchmark = new BenchmarkSuite('WeakSet', [1000], [
new Benchmark('Add', false, false, 0, WeakSetAdd, WeakSetSetupBase,
WeakSetTearDown),
new Benchmark('Has', false, false, 0, WeakSetHas, WeakSetSetup,
WeakSetTearDown),
new Benchmark('Delete', false, false, 0, WeakSetDelete, WeakSetSetup,
WeakSetTearDown),
]);
var ws;
function WeakSetSetupBase() {
SetupObjectKeys();
ws = new WeakSet;
}
function WeakSetSetup() {
WeakSetSetupBase();
WeakSetAdd();
}
function WeakSetTearDown() {
ws = null;
}
function WeakSetAdd() {
for (var i = 0; i < N; i++) {
ws.add(keys[i]);
}
}
function WeakSetHas() {
for (var i = 0; i < N; i++) {
if (!ws.has(keys[i])) {
throw new Error();
}
}
for (var i = N; i < 2 * N; i++) {
if (ws.has(keys[i])) {
throw new Error();
}
}
}
function WeakSetDelete() {
// This is run more than once per setup so we will end up deleting items
// more than once. Therefore, we do not the return value of delete.
for (var i = 0; i < N; i++) {
ws.delete(keys[i]);
}
}