rust-clippy/tests/ui/numbered_fields.rs

46 lines
949 B
Rust

#![warn(clippy::init_numbered_fields)]
#![allow(unused_tuple_struct_fields)]
#[derive(Default)]
struct TupleStruct(u32, u32, u8);
// This shouldn't lint because it's in a macro
macro_rules! tuple_struct_init {
() => {
TupleStruct { 0: 0, 1: 1, 2: 2 }
};
}
fn main() {
let tuple_struct = TupleStruct::default();
// This should lint
let _ = TupleStruct {
0: 1u32,
1: 42,
2: 23u8,
};
// This should also lint and order the fields correctly
let _ = TupleStruct {
0: 1u32,
2: 2u8,
1: 3u32,
};
// Ok because of default initializer
let _ = TupleStruct { 0: 42, ..tuple_struct };
let _ = TupleStruct {
1: 23,
..TupleStruct::default()
};
// Ok because it's in macro
let _ = tuple_struct_init!();
type Alias = TupleStruct;
// Aliases can't be tuple constructed #8638
let _ = Alias { 0: 0, 1: 1, 2: 2 };
}