mirror of
https://github.com/musix-org/musix-oss
synced 2024-11-14 16:00:17 +00:00
23 lines
739 B
JavaScript
23 lines
739 B
JavaScript
'use strict';
|
|
// https://github.com/tc39/proposal-iterator-helpers
|
|
var $ = require('../internals/export');
|
|
var anObject = require('../internals/an-object');
|
|
var toPositiveInteger = require('../internals/to-positive-integer');
|
|
var createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy');
|
|
|
|
var AsyncIteratorProxy = createAsyncIteratorProxy(function (arg) {
|
|
if (!this.remaining--) {
|
|
this.done = true;
|
|
return { done: true, value: undefined };
|
|
} return this.next.call(this.iterator, arg);
|
|
});
|
|
|
|
$({ target: 'AsyncIterator', proto: true, real: true }, {
|
|
take: function take(limit) {
|
|
return new AsyncIteratorProxy({
|
|
iterator: anObject(this),
|
|
remaining: toPositiveInteger(limit)
|
|
});
|
|
}
|
|
});
|