Multiple different nodes on the same worker

main.js

var context = new AudioContext();
var audioWorker = context.createAudioWorker("worker.js");
var sine = context.createAudioWorkerNode(audioWorker, {
    numberOfInputChannels: 0,
    numberOfOutputChannels: 1,
    parameters: {
        frequency: 440,
    },
    data: {
        type: "sine",
    },
});
var square = context.createAudioWorkerNode(audioWorker, {
    numberOfInputChannels: 0,
    numberOfOutputChannels: 1,
    parameters: {
        frequency: 440,
    },
    data: {
        type: "square",
    },
});

sine.connect(context.destination);
square.connect(context.destination);

sine.js

function Sine (node) {
    node.onaudioprocess = this.processBlock.bind(this);
    this.clock = 0;
}

Sine.prototype = {
    processBlock (event) {
        let blockSize = event.parameters.frequency.length;

        for ( let output of event.outputBuffers ) {
            for ( let i = 0; i < blockSize; i++ ) {
                let phase = (this.clock + i) * event.parameters.frequency[i] / event.sampleRate;
                output[i] = Math.sin(Math.PI * phase);
            }
        }

        this.clock += blockSize;
    }
};

self.addEventListener("onaudionodecreated", function (event) {
    if ( data.type === "sine" ) {
        new Sine(event.node);
    }
});

square.js

function Square (node) {
    node.onaudioprocess = this.processBlock.bind(this);
    this.clock = 0;
}

Square.prototype = {
    processBlock (event) {
        let blockSize = event.parameters.frequency.length;

        for ( let output of event.outputBuffers ) {
            for ( let i = 0; i < blockSize; i++ ) {
                let phase = (this.clock + i) * event.parameters.frequency[i] / event.sampleRate;
                output[i] = Math.round(phase % 1) * 2 - 1;
            }
        }

        this.clock += blockSize;
    }
};

self.addEventListener("onaudionodecreated", function (event) {
    if ( data.type === "square" ) {
        new Square(event.node);
    }
});

worker.js

importScripts("square.js", "sine.js");