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Fixes #6842
This adds a new pedantic
let_underscore_untyped
lint which checks forlet _ = <expr>
, and suggests to either provide a type annotation, or to remove thelet
keyword. That way the author is forced to specify the type they intended to ignore, and thus get forced to re-visit the decision should the type of<expr>
change. Alternatively, they can drop thelet
keyword to truly just ignore the value no matter what.r? @llogiq
changelog: New lint: [let_underscore_untyped]