Does a rule exist for warning on an unused return value?

# ktlint

[bbaldino]

Does a rule exist for warning on an unused return value?

[bbaldino]

I haven't been able to find anything when searching, thought I'd double check.

[bbaldino]

Playing a little with writing a rule, but is possible to look up a function definition from a call? That is, if I find a CALL_EXPRESSION to function foo, could i look up any annotations on foo? Maybe this would have to fall under a compiler plugin instead of a ktlint rule?

[tapchicoma]

isn't it goes more into direction of code quality rather then code style?

[bbaldino]

Perhaps, yeah. I'm just looking to add it in some places and trying to see what options were available.

[tapchicoma]

most probably you need to look into #detekt rules direction

[bbaldino]

Cool I'll check that out.