rust/tests/ui/feature-gates/feature-gate-pin_ergonomics.rs
2025-11-10 09:57:08 +08:00

118 lines
3.4 KiB
Rust

#![allow(dead_code)]
use std::pin::Pin;
#[pin_v2] //~ ERROR the `#[pin_v2]` attribute is an experimental feature
struct Foo;
impl Foo {
fn foo(self: Pin<&mut Self>) {}
fn foo_sugar(&pin mut self) {} //~ ERROR pinned reference syntax is experimental
fn foo_sugar_const(&pin const self) {} //~ ERROR pinned reference syntax is experimental
}
fn foo(mut x: Pin<&mut Foo>) {
Foo::foo_sugar(x.as_mut());
Foo::foo_sugar_const(x.as_ref());
let _y: &pin mut Foo = x; //~ ERROR pinned reference syntax is experimental
}
fn foo_const(x: Pin<&Foo>) {
let _y: &pin const Foo = x; //~ ERROR pinned reference syntax is experimental
}
fn foo_sugar(_: &pin mut Foo) {} //~ ERROR pinned reference syntax is experimental
fn bar(x: Pin<&mut Foo>) {
foo(x);
foo(x); //~ ERROR use of moved value: `x`
}
fn baz(mut x: Pin<&mut Foo>) {
x.foo();
x.foo(); //~ ERROR use of moved value: `x`
}
fn baz_sugar(_: &pin const Foo) {} //~ ERROR pinned reference syntax is experimental
fn borrows() {
let mut x: Pin<&mut _> = &pin mut Foo; //~ ERROR pinned reference syntax is experimental
foo(x.as_mut());
foo(x.as_mut());
foo_const(x.as_ref());
let x: Pin<&_> = &pin const Foo; //~ ERROR pinned reference syntax is experimental
foo_const(x);
foo_const(x);
}
fn patterns<'a>(
&pin mut x: &pin mut i32,
//~^ ERROR pinned reference syntax is experimental
//~| ERROR pinned reference syntax is experimental
&pin const y: &'a pin const i32,
//~^ ERROR pinned reference syntax is experimental
//~| ERROR pinned reference syntax is experimental
ref pin mut z: i32, //~ ERROR pinned reference syntax is experimental
ref pin const w: i32, //~ ERROR pinned reference syntax is experimental
) {}
#[cfg(any())]
mod not_compiled {
use std::pin::Pin;
#[pin_v2]
struct Foo;
impl Foo {
fn foo(self: Pin<&mut Self>) {}
fn foo_sugar(&pin mut self) {} //~ ERROR pinned reference syntax is experimental
fn foo_sugar_const(&pin const self) {} //~ ERROR pinned reference syntax is experimental
}
fn foo(mut x: Pin<&mut Foo>) {
Foo::foo_sugar(x.as_mut());
Foo::foo_sugar_const(x.as_ref());
let _y: &pin mut Foo = x; //~ ERROR pinned reference syntax is experimental
}
fn foo_sugar(_: &pin mut Foo) {} //~ ERROR pinned reference syntax is experimental
fn bar(x: Pin<&mut Foo>) {
foo(x);
foo(x);
}
fn baz(mut x: Pin<&mut Foo>) {
x.foo();
x.foo();
}
fn baz_sugar(_: &pin const Foo) {} //~ ERROR pinned reference syntax is experimental
fn borrows() {
let mut x: Pin<&mut _> = &pin mut Foo; //~ ERROR pinned reference syntax is experimental
foo(x.as_mut());
foo(x.as_mut());
foo_const(x.as_ref());
let x: Pin<&_> = &pin const Foo; //~ ERROR pinned reference syntax is experimental
foo_const(x);
foo_const(x);
}
fn patterns<'a>(
&pin mut x: &pin mut i32,
//~^ ERROR pinned reference syntax is experimental
//~| ERROR pinned reference syntax is experimental
&pin const y: &'a pin const i32,
//~^ ERROR pinned reference syntax is experimental
//~| ERROR pinned reference syntax is experimental
ref pin mut z: i32, //~ ERROR pinned reference syntax is experimental
ref pin const w: i32, //~ ERROR pinned reference syntax is experimental
) {}
}
fn main() {}