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react-native-devtools-frontend/node_modules/core-js/modules/esnext.async-iterator.from.js
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Paul Lewis 75090cfd93 Reland "Updates node_modules and update script"
This is a reland of 4df552c652

Original change's description:
> Updates node_modules and update script
> 
> Change-Id: I3fcf49bc416301a030d298cfc48c448bfeba4335
> Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1878808
> Reviewed-by: Tim van der Lippe <tvanderlippe@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Paul Lewis <aerotwist@chromium.org>

Change-Id: I97d1442c21420488fadde3f17f67cd4e3b959be6
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1880030
Commit-Queue: Paul Lewis <aerotwist@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
2019-10-25 13:19:06 +00:00

31 lines
1.0 KiB
JavaScript

// https://github.com/tc39/proposal-iterator-helpers
var $ = require('../internals/export');
var path = require('../internals/path');
var aFunction = require('../internals/a-function');
var anObject = require('../internals/an-object');
var toObject = require('../internals/to-object');
var createAsyncIteratorProxy = require('../internals/create-async-iterator-proxy');
var getAsyncIteratorMethod = require('../internals/get-async-iterator-method');
var AsyncIterator = path.AsyncIterator;
var AsyncIteratorProxy = createAsyncIteratorProxy(function (arg) {
return anObject(this.next.call(this.iterator, arg));
}, true);
$({ target: 'AsyncIterator', stat: true }, {
from: function from(O) {
var object = toObject(O);
var usingIterator = getAsyncIteratorMethod(object);
var iterator;
if (usingIterator != null) {
iterator = aFunction(usingIterator).call(object);
if (iterator instanceof AsyncIterator) return iterator;
} else {
iterator = object;
} return new AsyncIteratorProxy({
iterator: iterator
});
}
});