mirror of https://github.com/nodejs/node.git
65 lines
1.3 KiB
JavaScript
65 lines
1.3 KiB
JavaScript
'use strict';
|
|
|
|
const common = require('../common');
|
|
const assert = require('assert');
|
|
|
|
const bench = common.createBenchmark(main, {
|
|
n: [1e6],
|
|
code: [
|
|
'built-in',
|
|
'ERR_FS_CP_DIR_TO_NON_DIR',
|
|
],
|
|
stackTraceLimit: [0, 10],
|
|
}, {
|
|
flags: ['--expose-internals'],
|
|
});
|
|
|
|
function getErrorFactory(code) {
|
|
const {
|
|
ERR_FS_CP_DIR_TO_NON_DIR,
|
|
} = require('internal/errors').codes;
|
|
|
|
switch (code) {
|
|
case 'built-in':
|
|
return (n) => new Error();
|
|
case 'ERR_FS_CP_DIR_TO_NON_DIR':
|
|
return (n) => new ERR_FS_CP_DIR_TO_NON_DIR({
|
|
message: 'cannot overwrite directory',
|
|
path: 'dest',
|
|
syscall: 'cp',
|
|
errno: 21,
|
|
code: 'EISDIR',
|
|
});
|
|
default:
|
|
throw new Error(`${code} not supported`);
|
|
}
|
|
}
|
|
|
|
function main({ n, code, stackTraceLimit }) {
|
|
const getError = getErrorFactory(code);
|
|
|
|
Error.stackTraceLimit = stackTraceLimit;
|
|
|
|
// Warm up.
|
|
const length = 1024;
|
|
const array = [];
|
|
for (let i = 0; i < length; ++i) {
|
|
array.push(getError(i));
|
|
}
|
|
|
|
bench.start();
|
|
|
|
for (let i = 0; i < n; ++i) {
|
|
const index = i % length;
|
|
array[index] = getError(index);
|
|
}
|
|
|
|
bench.end(n);
|
|
|
|
// Verify the entries to prevent dead code elimination from making
|
|
// the benchmark invalid.
|
|
for (let i = 0; i < length; ++i) {
|
|
assert.strictEqual(typeof array[i], 'object');
|
|
}
|
|
}
|