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//@ compile-flags: -Z unstable-options
#![feature(rustc_attrs)]
#![feature(rustc_private)]
#![deny(rustc::pass_by_value)]
#![allow(unused)]
extern crate rustc_middle;
use rustc_middle::ty::{Ty, TyCtxt};
fn ty_by_ref(
ty_val: Ty<'_>,
ty_ref: &Ty<'_>, //~ ERROR passing `Ty<'_>` by reference
ty_ctxt_val: TyCtxt<'_>,
ty_ctxt_ref: &TyCtxt<'_>, //~ ERROR passing `TyCtxt<'_>` by reference
) {
}
fn ty_multi_ref(ty_multi: &&Ty<'_>, ty_ctxt_multi: &&&&TyCtxt<'_>) {}
//~^ ERROR passing `Ty<'_>` by reference
//~^^ ERROR passing `TyCtxt<'_>` by reference
trait T {
fn ty_by_ref_in_trait(
ty_val: Ty<'_>,
ty_ref: &Ty<'_>, //~ ERROR passing `Ty<'_>` by reference
ty_ctxt_val: TyCtxt<'_>,
ty_ctxt_ref: &TyCtxt<'_>, //~ ERROR passing `TyCtxt<'_>` by reference
);
fn ty_multi_ref_in_trait(ty_multi: &&Ty<'_>, ty_ctxt_multi: &&&&TyCtxt<'_>);
//~^ ERROR passing `Ty<'_>` by reference
//~^^ ERROR passing `TyCtxt<'_>` by reference
}
struct Foo;
impl T for Foo {
fn ty_by_ref_in_trait(
ty_val: Ty<'_>,
ty_ref: &Ty<'_>,
ty_ctxt_val: TyCtxt<'_>,
ty_ctxt_ref: &TyCtxt<'_>,
) {
}
fn ty_multi_ref_in_trait(ty_multi: &&Ty<'_>, ty_ctxt_multi: &&&&TyCtxt<'_>) {}
}
impl Foo {
fn ty_by_ref_assoc(
ty_val: Ty<'_>,
ty_ref: &Ty<'_>, //~ ERROR passing `Ty<'_>` by reference
ty_ctxt_val: TyCtxt<'_>,
ty_ctxt_ref: &TyCtxt<'_>, //~ ERROR passing `TyCtxt<'_>` by reference
) {
}
fn ty_multi_ref_assoc(ty_multi: &&Ty<'_>, ty_ctxt_multi: &&&&TyCtxt<'_>) {}
//~^ ERROR passing `Ty<'_>` by reference
//~^^ ERROR passing `TyCtxt<'_>` by reference
}
#[rustc_pass_by_value]
enum CustomEnum {
A,
B,
}
impl CustomEnum {
fn test(
value: CustomEnum,
reference: &CustomEnum, //~ ERROR passing `CustomEnum` by reference
) {
}
}
#[rustc_pass_by_value]
struct CustomStruct {
s: u8,
}
#[rustc_pass_by_value]
type CustomAlias<'a> = &'a CustomStruct; //~ ERROR passing `CustomStruct` by reference
impl CustomStruct {
fn test(
value: CustomStruct,
reference: &CustomStruct, //~ ERROR passing `CustomStruct` by reference
) {
}
fn test_alias(
value: CustomAlias,
reference: &CustomAlias, //~ ERROR passing `CustomAlias<'_>` by reference
) {
}
}
#[rustc_pass_by_value]
struct WithParameters<T, const N: usize, M = u32> {
slice: [T; N],
m: M,
}
impl<T> WithParameters<T, 1> {
fn test<'a>(
value: WithParameters<T, 1>,
reference: &'a WithParameters<T, 1>, //~ ERROR passing `WithParameters<T, 1>` by reference
reference_with_m: &WithParameters<T, 1, u32>, //~ ERROR passing `WithParameters<T, 1, u32>` by reference
) -> &'a WithParameters<T, 1> {
//~^ ERROR passing `WithParameters<T, 1>` by reference
reference as &WithParameters<_, 1> //~ ERROR passing `WithParameters<_, 1>` by reference
}
}
fn main() {}
|
