CODEWITHSUNDEEP
goclosureslintergolint
Santi Santichaivekin
Santi Santichaivekin

Reputation: 11

Can I set up go linter to disallow assignment to bound variable in function closures?

Go allows people to do assignment on bound variable in function closures (example: A Tour of Go).

func adder() func(int) int {
    sum := 0
    return func(x int) int {
        sum += x
        return sum
    }
}

This has led to a few race condition bugs in our codebase. I wonder if there's a way to set up the linter to disallow this assignment operation in function closures (the = in sum += x). (E.g. in python you need the nonlocal keyword to do the same thing)

I have searched the internet but couldn't find people with the same problem. Not sure if this problem is unique to our codebase and company.

Upvotes: 0

Views: 26

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