//@aux-build:proc_macro_suspicious_else_formatting.rs #![warn(clippy::suspicious_else_formatting)] #![allow(clippy::if_same_then_else, clippy::let_unit_value, clippy::needless_else)] extern crate proc_macro_suspicious_else_formatting; use proc_macro_suspicious_else_formatting::DeriveBadSpan; fn foo() -> bool { true } #[rustfmt::skip] fn main() { // weird `else` formatting: if foo() { } { } if foo() { } if foo() { } let _ = { // if as the last expression let _ = 0; if foo() { } if foo() { } else { } }; let _ = { // if in the middle of a block if foo() { } if foo() { } else { } let _ = 0; }; if foo() { } else { } // This is fine, though weird. Allman style braces on the else. if foo() { } else { } if foo() { } else if foo() { // the span of the above error should continue here } if foo() { } else if foo() { // the span of the above error should continue here } // those are ok: if foo() { } { } if foo() { } else { } if foo() { } else { } if foo() { } if foo() { } // Almost Allman style braces. Lint these. if foo() { } else { } if foo() { } else { } // #3864 - Allman style braces if foo() { } else { } //#10273 This is fine. Don't warn if foo() { } else /* whelp */ { } } // #7650 - Don't lint. Proc-macro using bad spans for `if` expressions. #[derive(DeriveBadSpan)] struct _Foo(u32, u32);