rust/tests/ui/internal-lints/rustc_pass_by_value_self.rs

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

55 lines
1.2 KiB
Rust
Raw Normal View History

//@ compile-flags: -Z unstable-options
2020-09-21 18:28:52 +00:00
// NOTE: This test doesn't actually require `fulldeps`
// so we could instead use it as a `ui` test.
2020-09-21 18:28:52 +00:00
//
// Considering that all other `internal-lints` are tested here
// this seems like the cleaner solution though.
#![feature(rustc_attrs)]
#![deny(rustc::pass_by_value)]
2020-09-21 18:28:52 +00:00
#![allow(unused)]
#[rustc_pass_by_value]
2020-09-21 18:28:52 +00:00
struct TyCtxt<'tcx> {
inner: &'tcx (),
}
impl<'tcx> TyCtxt<'tcx> {
fn by_value(self) {} // OK
fn by_ref(&self) {} //~ ERROR passing `TyCtxt<'tcx>` by reference
}
struct TyS<'tcx> {
inner: &'tcx (),
}
#[rustc_pass_by_value]
2020-09-21 18:28:52 +00:00
type Ty<'tcx> = &'tcx TyS<'tcx>;
impl<'tcx> TyS<'tcx> {
fn by_value(self: Ty<'tcx>) {}
fn by_ref(self: &Ty<'tcx>) {} //~ ERROR passing `Ty<'tcx>` by reference
}
#[rustc_pass_by_value]
struct Foo;
impl Foo {
fn with_ref(&self) {} //~ ERROR passing `Foo` by reference
}
#[rustc_pass_by_value]
struct WithParameters<T, const N: usize, M = u32> {
slice: [T; N],
m: M,
}
impl<T> WithParameters<T, 1> {
2022-07-18 23:54:13 +00:00
fn with_ref(&self) {} //~ ERROR passing `WithParameters<T, 1>` by reference
}
impl<T> WithParameters<T, 1, u8> {
2022-07-18 23:54:13 +00:00
fn with_ref(&self) {} //~ ERROR passing `WithParameters<T, 1, u8>` by reference
}
2020-09-21 18:28:52 +00:00
fn main() {}