Sha256: 1cfdd842f454763a2703877e88121ebfac01b9671c71f6de16506c407b35e1f3
Contents?: true
Size: 963 Bytes
Versions: 17
Compression:
Stored size: 963 Bytes
Contents
'use strict';
// https://github.com/tc39/proposal-iterator-helpers
var $ = require('../internals/export');
var aFunction = require('../internals/a-function');
var anObject = require('../internals/an-object');
var createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy');
var AsyncIteratorProxy = createAsyncIteratorProxy(function (arg, Promise) {
var state = this;
var mapper = state.mapper;
return Promise.resolve(anObject(state.next.call(state.iterator, arg))).then(function (step) {
if (anObject(step).done) {
state.done = true;
return { done: true, value: undefined };
}
return Promise.resolve(mapper(step.value)).then(function (value) {
return { done: false, value: value };
});
});
});
$({ target: 'AsyncIterator', proto: true, real: true }, {
map: function map(mapper) {
return new AsyncIteratorProxy({
iterator: anObject(this),
mapper: aFunction(mapper)
});
}
});
Version data entries
17 entries across 16 versions & 6 rubygems