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musix-oss/node_modules/core-js/modules/esnext.async-iterator.take.js

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2020-03-03 20:30:50 +00:00
'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)
});
}
});