Error when completing brackets

v6
1

I get this error when completing brackets

TypeError: Cannot read properties of undefined (reading 'breakAfter')
    at DocView.coordsAt (index.js?02d1:2231)
    at EditorView.coordsAtPos (index.js?02d1:6161)
    at eval (index.js?6613:81)
    at Array.map (<anonymous>)
    at _codemirror_view__WEBPACK_IMPORTED_MODULE_0__.ViewPlugin.fromClass.eventHandlers.scroll.readMeasure (index.js?6613:81)
    at eval (index.js?02d1:5873)
    at Array.map (<anonymous>)
    at EditorView.measure (index.js?02d1:5871)
    at eval (index.js?02d1:5982)

This is the coordsAt function.

coordsAt(pos, side) {
        for (let off = this.length, i = this.children.length - 1;; i--) {
            let child = this.children[i], start = off - child.breakAfter - child.length;
            if (pos > start ||
                (pos == start && child.type != BlockType.WidgetBefore && child.type != BlockType.WidgetAfter &&
                    (!i || side == 2 || this.children[i - 1].breakAfter ||
                        (this.children[i - 1].type == BlockType.WidgetBefore && side > -2))))
                return child.coordsAt(pos - start, side);
            off = start;
        }
    }

It looks like accessing the breakAfter property of variable child throws an error.

Is there a way to fix this? looks like something internal to cm6?

Thanks

2

Some more context. This only happens when the bracket completing is the first line of the cm instance. If it has multiple lines, this error does not occur.

3

Does ‘completing brackets’ mean the auto-closing done by closeBrackets? Can you provide more detailed instructions on how to reproduce this?

4

Yes the auto closing feature. Unfortunately, not able to reproduce it. Will post more when I have some deeper breakthrough available - one that you can do something about. Thanks!