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// check-pass // run-rustfix #![warn(unused_braces)] macro_rules! make_1 { () => { 1 } } struct A<const N: usize>; fn main() { let _: A<7>; // ok let _: A<7>; //~ WARN unnecessary braces let _: A<{ 3 + 5 }>; // ok let _: A<{make_1!()}>; // ok }