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'use strict';
const common = require('../common.js');
const assert = require('assert');
const bench = common.createBenchmark(main, {
method: [
'object', 'nullProtoObject', 'nullProtoLiteralObject', 'storageObject',
'fakeMap', 'map',
],
n: [1e6]
});
function runObject(n) {
const m = {};
bench.start();
for (var i = 0; i < n; i++) {
m[`i${i}`] = i;
m[`s${i}`] = String(i);
assert.strictEqual(String(m[`i${i}`]), m[`s${i}`]);
m[`i${i}`] = undefined;
m[`s${i}`] = undefined;
}
bench.end(n);
}
function runNullProtoObject(n) {
const m = Object.create(null);
bench.start();
for (var i = 0; i < n; i++) {
m[`i${i}`] = i;
m[`s${i}`] = String(i);
assert.strictEqual(String(m[`i${i}`]), m[`s${i}`]);
m[`i${i}`] = undefined;
m[`s${i}`] = undefined;
}
bench.end(n);
}
function runNullProtoLiteralObject(n) {
const m = { __proto__: null };
bench.start();
for (var i = 0; i < n; i++) {
m[`i${i}`] = i;
m[`s${i}`] = String(i);
assert.strictEqual(String(m[`i${i}`]), m[`s${i}`]);
m[`i${i}`] = undefined;
m[`s${i}`] = undefined;
}
bench.end(n);
}
function StorageObject() {}
StorageObject.prototype = Object.create(null);
function runStorageObject(n) {
const m = new StorageObject();
bench.start();
for (var i = 0; i < n; i++) {
m[`i${i}`] = i;
m[`s${i}`] = String(i);
assert.strictEqual(String(m[`i${i}`]), m[`s${i}`]);
m[`i${i}`] = undefined;
m[`s${i}`] = undefined;
}
bench.end(n);
}
function fakeMap() {
const m = {};
return {
get(key) { return m[`$${key}`]; },
set(key, val) { m[`$${key}`] = val; },
get size() { return Object.keys(m).length; },
has(key) { return Object.prototype.hasOwnProperty.call(m, `$${key}`); }
};
}
function runFakeMap(n) {
const m = fakeMap();
bench.start();
for (var i = 0; i < n; i++) {
m.set(`i${i}`, i);
m.set(`s${i}`, String(i));
assert.strictEqual(String(m.get(`i${i}`)), m.get(`s${i}`));
m.set(`i${i}`, undefined);
m.set(`s${i}`, undefined);
}
bench.end(n);
}
function runMap(n) {
const m = new Map();
bench.start();
for (var i = 0; i < n; i++) {
m.set(`i${i}`, i);
m.set(`s${i}`, String(i));
assert.strictEqual(String(m.get(`i${i}`)), m.get(`s${i}`));
m.set(`i${i}`, undefined);
m.set(`s${i}`, undefined);
}
bench.end(n);
}
function main({ n, method }) {
switch (method) {
case '':
// Empty string falls through to next line as default, mostly for tests.
case 'object':
runObject(n);
break;
case 'nullProtoObject':
runNullProtoObject(n);
break;
case 'nullProtoLiteralObject':
runNullProtoLiteralObject(n);
break;
case 'storageObject':
runStorageObject(n);
break;
case 'fakeMap':
runFakeMap(n);
break;
case 'map':
runMap(n);
break;
default:
throw new Error(`Unexpected method "${method}"`);
}
}
|
