Dmytro Maluka acb0d763df ReHighlightStates: sanity-check startline value (#3237) ...

Check if startline value is valid before passing it to input.State(),
to prevent a theoretically possible race when the number of lines
changes in the meantime, causing an out of bounds access.

Actually this race cannot happen: ReHighlightStates() is only called
from the main goroutine, and the line array is modified, again, only by
the main goroutine. So for now this change is rather cosmetic: it is
just to make the highligher API implementation self-sufficiently safe
without assumptions about which goroutines are using which API functions
and how.

2024-04-09 00:31:01 +02:00

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ReHighlightStates: sanity-check startline value (#3237)

2024-04-09 00:31:01 +02:00