stromjs/dist/functions/duplex.js

Dependency-free streams utils for Node.js

"use strict";
exports.__esModule = true;
exports.duplex = void 0;
var stream_1 = require("stream");
function duplex(writable, readable) {
    var wrapper = new stream_1.Duplex({
        readableObjectMode: true,
        writableObjectMode: true,
        read: function () {
            readable.resume();
        },
        write: function (chunk, encoding, callback) {
            return writable.write(chunk, encoding, callback);
        },
        final: function (callback) {
            writable.end(callback);
        }
    });
    readable
        .on("data", function (chunk) {
        if (!wrapper.push(chunk)) {
            readable.pause();
        }
    })
        .on("error", function (err) { return wrapper.emit("error", err); })
        .on("end", function () { return wrapper.push(null); });
    writable.on("drain", function () { return wrapper.emit("drain"); });
    writable.on("error", function (err) { return wrapper.emit("error", err); });
    return wrapper;
}
exports.duplex = duplex;