mirror of
https://github.com/denoland/deno.git
synced 2024-12-01 16:51:13 -05:00
36 lines
845 B
JavaScript
36 lines
845 B
JavaScript
|
// deno-fmt-ignore-file
|
||
|
|
// deno-lint-ignore-file
|
||
|
|
|
||
|
|
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
|
||
|
|
// Taken from Node 18.12.1
|
||
|
|
// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
|
||
|
|
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
const assert = require('assert');
|
||
|
|
const kLimit = Symbol('limit');
|
||
|
|
const kCallback = Symbol('callback');
|
||
|
|
const common = require('./');
|
||
|
|
|
||
|
|
class Countdown {
|
||
|
|
constructor(limit, cb) {
|
||
|
|
assert.strictEqual(typeof limit, 'number');
|
||
|
|
assert.strictEqual(typeof cb, 'function');
|
||
|
|
this[kLimit] = limit;
|
||
|
|
this[kCallback] = common.mustCall(cb);
|
||
|
|
}
|
||
|
|
|
||
|
|
dec() {
|
||
|
|
assert(this[kLimit] > 0, 'Countdown expired');
|
||
|
|
if (--this[kLimit] === 0)
|
||
|
|
this[kCallback]();
|
||
|
|
return this[kLimit];
|
||
|
|
}
|
||
|
|
|
||
|
|
get remaining() {
|
||
|
|
return this[kLimit];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = Countdown;
|