@thi.ng/rstream/view.js

Reactive streams & subscription primitives for constructing dataflow graphs / pipelines

import { View } from "@thi.ng/atom/view";
import { __optsWithID } from "./idgen.js";
import { Stream } from "./stream.js";
const fromViewUnsafe = (atom, opts) => fromView(atom, opts);
function fromView(atom, opts) {
  opts = __optsWithID("view", opts);
  return new Stream((stream) => {
    let isActive = true;
    const tx = opts.tx;
    const view = new View(
      atom,
      opts.path,
      tx ? (x) => isActive && (x = tx(x), stream.next(x), x) : (x) => isActive && (stream.next(x), x),
      false,
      opts.equiv
    );
    return () => {
      isActive = false;
      view.release();
    };
  }, opts);
}
export {
  fromView,
  fromViewUnsafe
};