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New lint `const_is_empty` This lint detects calls to `.is_empty()` on an entity initialized from a string literal and flag them as suspicious. To avoid triggering on macros called from generated code, it checks that the `.is_empty()` receiver, the call itself and the initialization come from the same context. Fixes #12307 changelog: [`const_is_empty`]: new lint |
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Cargo.toml |