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64d08a8b1d
`unused_io_amount` captures `Ok(_)`s Partial rewrite of `unused_io_amount` to lint over `Ok(_)` and `Ok(..)`. Moved the check to `check_block` to simplify context checking for expressions and allow us to check only some expressions. For match (expr, arms) we emit a lint for io ops used on `expr` when an arm is `Ok(_)|Ok(..)`. Also considers the cases when there are guards in the arms and `if let Ok(_) = ...` cases. For `Ok(_)` and `Ok(..)` it emits a note indicating where the value is ignored. changelog: False Negatives [`unused_io_amount`]: Extended `unused_io_amount` to catch `Ok(_)`s in `If let` and match exprs. Closes #11713 r? `@giraffate` |
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