How to add some known objects to ace editors syntax checker?

Question

we're using the ACE editor to write javascript code that's interpreted on the server side. So the server has a JavaScript interface and can execute submitted code to accomplish some task from the outside.

The server implements some new objects that are not known by ACE. So ACE shows a warning, if one of this unknown objects is used in code.

What is the correct way to tell ACE, that there are some new objects, variables und functions? I already took a look into worker-javascript.js, but I DON'T want to reimplement this whole stuff (updating ACE would get harder than). Is there any interface I can use?

Answer 1

Ace uses jshint, which has an option to set a list of global variables:

(function configureAceWorker() {
    const worker = editor.session.$worker;
    if (!worker) {
        // Chris Janssen: You may need to set a timeout to delay the call
        // until the editor is done being setup by ace
        // or you will get an error due to the worker not existing yet.
        setTimeout(configureAceWorker, 500);
    } else {
        worker.call("changeOptions", [{
            // https://jshint.com/docs/options
            globals: { foo: false, bar: false }, // false = read-only
            undef: true, // enable warnings on undefined variables
        }]);
    }
})();