forked from mrsone40/node
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathreadable-from.js
More file actions
69 lines (55 loc) · 1.28 KB
/
readable-from.js
File metadata and controls
69 lines (55 loc) · 1.28 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
'use strict';
const common = require('../common');
const Readable = require('stream').Readable;
const bench = common.createBenchmark(main, {
n: [1e7],
type: ['array', 'sync-generator-with-sync-values', 'sync-generator-with-async-values', 'async-generator'],
});
async function main({ n, type }) {
let fromArg;
switch (type) {
case 'array': {
fromArg = [];
for (let i = 0; i < n; i++) {
fromArg.push(`${i}`);
}
break;
}
case 'sync-generator-with-sync-values': {
fromArg = (function* () {
for (let i = 0; i < n; i++) {
yield `${i}`;
}
})();
break;
}
case 'sync-generator-with-async-values': {
fromArg = (function* () {
for (let i = 0; i < n; i++) {
yield Promise.resolve(`${i}`);
}
})();
break;
}
case 'async-generator': {
fromArg = (async function* () {
for (let i = 0; i < n; i++) {
yield `${i}`;
}
})();
break;
}
default: {
throw new Error(`Unknown type: ${type}`);
}
}
const s = new Readable.from(fromArg);
bench.start();
s.on('data', (data) => {
// eslint-disable-next-line no-unused-expressions
data;
});
s.on('close', () => {
bench.end(n);
});
}