Is there a method to remove circular references in Ace - ace-editor

Question

I'm wrapping AceEditor page in web view and returning the event results to the container and it is hanging on objects that contain circular references.
Is there a method in ace to remove circular references in the objects dispatched in the events of Ace Editor?

Answer 1

I didn't find one so I wrote one myself. It seems to work so far:
"use strict";
// returns an object that removes circular references
document.removeReferences = function (object, maxDepth, depth, objects, clone, debug) {
if (objects==null) { objects = []; }
if (clone==true) { clone = {}; }
maxDepth = maxDepth==null ? 10 : maxDepth;
depth = depth==null ? 0 : depth;
var padding = "";
var value;
if (debug) { for (var i=0;i<depth;i++) { padding += " "; } };
if (debug && typeof object != 'function') {
console.log(padding + "\nDepth:" + depth + " max depth:" + maxDepth);
}
if (typeof object == 'object') {
if (object!=null && objects.indexOf(object)==-1) {
if (debug) console.log(padding+"caching object:"+object);
objects.push(object);
}
else {
if (debug) console.log(padding+"object found. skipping");
return clone;
}
for (var key in object) {
value = object[key];
if (debug && typeof value!="function") {
console.log(padding+""+key + ":" + typeof value);
}
if (object.hasOwnProperty(key) && (typeof value == 'object')) {
// remove circular references
if (objects.indexOf(value)!=-1) {
if (debug) console.log(padding+"recursive object found. deleting:"+key);
if (clone==null) {
delete object[key];
}
else {
delete clone[key];
}
continue;
}
if (depth>=maxDepth) {
//object[key] = null;
if (clone==null) {
if (debug) console.log(padding+"max object limit - deleting:"+key);
delete object[key];
}
else {
if (typeof value=="array") {
clone[key] = null;
}
else {
clone[key] = null;
}
delete clone[key];
if (debug) console.log(padding+"max object limit - not adding:"+key);
}
}
else {
if (clone==null) {
if (value!=null) {
if (debug) console.log(padding+"diving into:"+key);
document.removeReferences(value, maxDepth, depth+1, objects, null, debug);
}
}
else {
if (typeof value=="array") {
clone[key] = value.slice();
}
else {
clone[key] = value!=null ? {} : null;
}
if (value!=null) {
if (debug) console.log(padding+"diving into:"+key);
document.removeReferences(value, maxDepth, depth+1, objects, clone[key], debug);
}
}
}
}
else if (typeof value == 'function') {
//object[key] = null;
if (clone==null) {
delete object[key];
}
else {
}
}
else {
if (clone!=null) {
if (debug) console.log(padding+" cloning key :"+key);
if (typeof value=="array") {
clone[key] = value.slice();
}
else {
clone[key] = value!=null ? value : null;
}
}
}
}
}
if (clone!=null) {
if (debug) console.log(padding+"return clone");
return clone;
}
if (debug) console.log(padding+"return object");
return object;
}
You then use something like this:
// inside an ace editor event:
var debug = true;
var clonedEvent = document.removeReferences(event, 0, null, null, true, debug);