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ReactDOMNodeStreamRenderer.js
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ReactDOMNodeStreamRenderer.js
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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import {Readable} from 'stream';
import ReactPartialRenderer from './ReactPartialRenderer';
// This is a Readable Node.js stream which wraps the ReactDOMPartialRenderer.
class ReactMarkupReadableStream extends Readable {
constructor(element, makeStaticMarkup) {
// Calls the stream.Readable(options) constructor. Consider exposing built-in
// features like highWaterMark in the future.
super({});
this.partialRenderer = new ReactPartialRenderer(element, makeStaticMarkup);
}
_destroy() {
this.partialRenderer.destroy();
}
_read(size) {
try {
this.push(this.partialRenderer.read(size));
} catch (err) {
this.destroy(err);
}
}
}
/**
* Render a ReactElement to its initial HTML. This should only be used on the
* server.
* See https://reactjs.org/docs/react-dom-server.html#rendertonodestream
*/
export function renderToNodeStream(element) {
return new ReactMarkupReadableStream(element, false);
}
/**
* Similar to renderToNodeStream, except this doesn't create extra DOM attributes
* such as data-react-id that React uses internally.
* See https://reactjs.org/docs/react-dom-server.html#rendertostaticnodestream
*/
export function renderToStaticNodeStream(element) {
return new ReactMarkupReadableStream(element, true);
}