Lint: Disallow non-literal division and non-literal modulo

[inoas]

What the rule should do:

• Warn if the / and/or % operators are used on non-literals.
• Could allow constants instead of literals, that are literals themselves.
• Literals 0, -0 and +0 are not allow either.

What problems does it solve:

• Accidential division by zero.

let a = 0
1 / a

Example of things the rule would not report:

1 / 2

const foo = 2

1 / foo

I am looking for:

• Feedback
• Tips and help on how to implement it
• Someone to implement it with/for me, if I don't know how.

[lpil]

What problem does this solve?

[inoas]

It removes divison by zero annomalies during runtime and keeps / and % to work where it is safe by default?

[lpil]

Division is safe by default. It would not be in the language if it was not.

[MystPi]

This doesn't make much sense to me at all. There are many times when the divisor can not be a literal. Even if the divisor does turn out to be 0 Gleam makes it very clear what the expected behavior is.

[inoas]

This doesn't make much sense to me at all. There are many times when the divisor can not be a literal. Even if the divisor does turn out to be 0 Gleam makes it very clear what the expected behavior is.

then just use divide/modulo/remainder functions?

[MystPi]

This doesn't make much sense to me at all. There are many times when the divisor can not be a literal. Even if the divisor does turn out to be 0 Gleam makes it very clear what the expected behavior is.

then just use divide/modulo/remainder functions?

...that's what the operators are for though—the functions should only be used in places where the divisor cannot be 0 for any reason. Probably 99% of the time it doesn't matter whether the divisor is 0.