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