[lint pass request] listening on a nonexistent or not yet stamped element

[web-padawan]

It would be nice to have a check for using id of element which is located inside of the dom-if template in listeners object. As of 1.7.0, this causes errors like this:

polymer.html:540 Uncaught TypeError: Invalid value used as weak map key

[rictic]

I see, so with an element whose template is like:

<template>
  <template is="dom-if" if="whatever">
    <div id="foo"></div>
  </template>
</template>

And it's declared like:

Polymer({
  is: 'example-elem',
  listeners: {
    'foo.tap': 'onFooTapped',
  },
  onFooTapped() { /* ... */ }
});

This doesn't work because the div doesn't exist when the element is first stamped.

[web-padawan]

Another example could be this.$.elementId calls check (linter should throw error if element does not have a child which such id in its template). Had a typo like this today 😢

[davidmaxwaterman]

...and I would imagine it might be an easy task to add a check for properties/methods on such - eg this.$.elementId.open() - check there's a method open() on the element.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[web-padawan]

So much notifications for "nice to have" issues that have never been implemented. Sigh.