rust/tests/ui/impl-trait/precise-capturing/auxiliary/no-use-pm.rs

25 lines
473 B
Rust

// A proc-macro in 2015 that has an RPIT without `use<>` that would cause a
// problem with 2024 capturing rules.
extern crate proc_macro;
use proc_macro::TokenStream;
#[proc_macro]
pub fn pm_rpit(input: TokenStream) -> TokenStream {
"fn test_pm(x: &Vec<i32>) -> impl std::fmt::Display {
x[0]
}
pub fn from_pm() {
let mut x = vec![];
x.push(1);
let element = test_pm(&x);
x.push(2);
println!(\"{element}\");
}
"
.parse()
.unwrap()
}