30 lines
515 B
Rust
30 lines
515 B
Rust
//@aux-build:proc_macros.rs
|
|
//@no-rustfix
|
|
extern crate proc_macros;
|
|
use proc_macros::external;
|
|
|
|
#[warn(clippy::string_add)]
|
|
#[allow(clippy::string_add_assign, unused)]
|
|
fn main() {
|
|
// ignores assignment distinction
|
|
let mut x = String::new();
|
|
|
|
for _ in 1..3 {
|
|
x = x + ".";
|
|
}
|
|
|
|
let y = String::new();
|
|
let z = y + "...";
|
|
|
|
assert_eq!(&x, &z);
|
|
|
|
let mut x = 1;
|
|
x = x + 1;
|
|
assert_eq!(2, x);
|
|
|
|
external!({
|
|
let y = "".to_owned();
|
|
let z = y + "...";
|
|
});
|
|
}
|