mirror of https://github.com/rust-lang/rust.git
55 lines
1.2 KiB
Rust
55 lines
1.2 KiB
Rust
// compile-flags: -Z unstable-options
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// NOTE: This test doesn't actually require `fulldeps`
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// so we could instead use it as a `ui` test.
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//
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// Considering that all other `internal-lints` are tested here
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// this seems like the cleaner solution though.
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#![feature(rustc_attrs)]
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#![deny(rustc::pass_by_value)]
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#![allow(unused)]
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#[rustc_pass_by_value]
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struct TyCtxt<'tcx> {
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inner: &'tcx (),
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}
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impl<'tcx> TyCtxt<'tcx> {
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fn by_value(self) {} // OK
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fn by_ref(&self) {} //~ ERROR passing `TyCtxt<'tcx>` by reference
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}
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struct TyS<'tcx> {
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inner: &'tcx (),
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}
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#[rustc_pass_by_value]
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type Ty<'tcx> = &'tcx TyS<'tcx>;
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impl<'tcx> TyS<'tcx> {
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fn by_value(self: Ty<'tcx>) {}
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fn by_ref(self: &Ty<'tcx>) {} //~ ERROR passing `Ty<'tcx>` by reference
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}
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#[rustc_pass_by_value]
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struct Foo;
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impl Foo {
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fn with_ref(&self) {} //~ ERROR passing `Foo` by reference
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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 with_ref(&self) {} //~ ERROR passing `WithParameters<T, 1>` by reference
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}
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impl<T> WithParameters<T, 1, u8> {
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fn with_ref(&self) {} //~ ERROR passing `WithParameters<T, 1, u8>` by reference
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}
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fn main() {}
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