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'use strict';
const common = require('../common.js');
const assert = require('assert');
const bench = common.createBenchmark(main, {
method: ['copy', 'rest', 'arguments'],
millions: [100]
});
function copyArguments() {
const len = arguments.length;
const args = new Array(len);
for (var i = 0; i < len; i++)
args[i] = arguments[i];
assert.strictEqual(args[0], 1);
assert.strictEqual(args[1], 2);
assert.strictEqual(args[2], 'a');
assert.strictEqual(args[3], 'b');
}
function restArguments(...args) {
assert.strictEqual(args[0], 1);
assert.strictEqual(args[1], 2);
assert.strictEqual(args[2], 'a');
assert.strictEqual(args[3], 'b');
}
function useArguments() {
assert.strictEqual(arguments[0], 1);
assert.strictEqual(arguments[1], 2);
assert.strictEqual(arguments[2], 'a');
assert.strictEqual(arguments[3], 'b');
}
function runCopyArguments(n) {
var i = 0;
bench.start();
for (; i < n; i++)
copyArguments(1, 2, 'a', 'b');
bench.end(n / 1e6);
}
function runRestArguments(n) {
var i = 0;
bench.start();
for (; i < n; i++)
restArguments(1, 2, 'a', 'b');
bench.end(n / 1e6);
}
function runUseArguments(n) {
var i = 0;
bench.start();
for (; i < n; i++)
useArguments(1, 2, 'a', 'b');
bench.end(n / 1e6);
}
function main(conf) {
const n = +conf.millions * 1e6;
switch (conf.method) {
case 'copy':
runCopyArguments(n);
break;
case 'rest':
runRestArguments(n);
break;
case 'arguments':
runUseArguments(n);
break;
default:
throw new Error('Unexpected method');
}
}
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