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// NB: If you change this test, change 'stmt_expr_attributes-feature-gate.rs' at the same time.
// proc_macro_hygiene
// Tracking issue: https://github.com/rust-lang/rust/issues/54727
#![feature(proc_macro_hygiene)]
// stmt_expr_attributes
// Tracking issue: https://github.com/rust-lang/rust/issues/15701
#![feature(stmt_expr_attributes)]
use pin_project::{pin_project, project};
use std::pin::Pin;
fn project_stmt_expr_nightly() {
#[pin_project]
enum Baz<A, B, C, D> {
Variant1(#[pin] A, B),
Variant2 {
#[pin]
field1: C,
field2: D,
},
None,
}
let mut baz = Baz::Variant1(1, 2);
let mut baz = Pin::new(&mut baz).project();
#[project]
match &mut baz {
Baz::Variant1(x, y) => {
let x: &mut Pin<&mut i32> = x;
assert_eq!(**x, 1);
let y: &mut &mut i32 = y;
assert_eq!(**y, 2);
}
Baz::Variant2 { field1, field2 } => {
let _x: &mut Pin<&mut i32> = field1;
let _y: &mut &mut i32 = field2;
}
Baz::None => {}
}
let () = #[project]
match &mut baz {
Baz::Variant1(x, y) => {
let x: &mut Pin<&mut i32> = x;
assert_eq!(**x, 1);
let y: &mut &mut i32 = y;
assert_eq!(**y, 2);
}
Baz::Variant2 { field1, field2 } => {
let _x: &mut Pin<&mut i32> = field1;
let _y: &mut &mut i32 = field2;
}
Baz::None => {}
};
}
fn main() {}
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