The kotlin parser can recover from errors. If it fails to parse something, it continues until it finds next parseable top-level object (e.g. function or class). The backtracking parser is actually quite good for this.

I did try at first to write simple, handwritten parser that only gets the important tags. However the problem with Kotlin is that the grammar is quite complex and it lead to way too many inaccuracies. That is why I had to implement it all in the end. Also, it was very hard to track scope, when only some parts of the code were parsed.

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