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make comments less cryptic

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This commit is contained in:
ouz-a 2023-09-05 17:52:39 +03:00
parent 810573919f
commit 7928c5f830
5 changed files with 12 additions and 12 deletions
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2
compiler/rustc_lint/src/traits.rs
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@ -96,7 +96,7 @@ impl<'tcx> LateLintPass<'tcx> for DropTraitConstraints {
}; };
let def_id = trait_predicate.trait_ref.def_id; let def_id = trait_predicate.trait_ref.def_id;
if cx.tcx.lang_items().drop_trait() == Some(def_id) { if cx.tcx.lang_items().drop_trait() == Some(def_id) {
// Explicitly allow `impl Drop`, a drop-guards-as-Voldemort-type pattern. // Explicitly allow `impl Drop`, a drop-guards-as-unnameable-type pattern.
if trait_predicate.trait_ref.self_ty().is_impl_trait() { if trait_predicate.trait_ref.self_ty().is_impl_trait() {
continue; continue;
} }

2
compiler/rustc_lint_defs/src/builtin.rs
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@ -4408,7 +4408,7 @@ declare_lint! {
/// pub struct S; /// pub struct S;
/// } /// }
/// ///
/// pub fn get_voldemort() -> m::S { m::S } /// pub fn get_unnameable() -> m::S { m::S }
/// # fn main() {} /// # fn main() {}
/// ``` /// ```
/// ///

2
compiler/rustc_middle/src/ty/sty.rs
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@ -2857,7 +2857,7 @@ impl<'tcx> Ty<'tcx> {
| ty::Uint(..) | ty::Uint(..)
| ty::Float(..) => true, | ty::Float(..) => true,
// The voldemort ZSTs are fine. // ZST which can't be named are fine.
ty::FnDef(..) => true, ty::FnDef(..) => true,
ty::Array(element_ty, _len) => element_ty.is_trivially_pure_clone_copy(), ty::Array(element_ty, _len) => element_ty.is_trivially_pure_clone_copy(),

10
tests/ui/drop-bounds/drop-bounds-impl-drop.rs
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@ -2,13 +2,13 @@
#![deny(drop_bounds)] #![deny(drop_bounds)]
// As a special exemption, `impl Drop` in the return position raises no error. // As a special exemption, `impl Drop` in the return position raises no error.
// This allows a convenient way to return an unnamed drop guard. // This allows a convenient way to return an unnamed drop guard.
fn voldemort_type() -> impl Drop { fn unnameable_type() -> impl Drop {
struct Voldemort; struct Unnameable;
impl Drop for Voldemort { impl Drop for Unnameable {
fn drop(&mut self) {} fn drop(&mut self) {}
} }
Voldemort Unnameable
} }
fn main() { fn main() {
let _ = voldemort_type(); let _ = unnameable_type();
} }

8
tests/ui/privacy/unnameable_types.rs
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@ -21,10 +21,10 @@ mod m {
} }
} }
pub trait Voldemort<T> {} pub trait Unnameable<T> {}
impl Voldemort<m::PubStruct> for i32 {} impl Unnameable<m::PubStruct> for i32 {}
impl Voldemort<m::PubE> for i32 {} impl Unnameable<m::PubE> for i32 {}
impl<T> Voldemort<T> for u32 where T: m::PubTr {} impl<T> Unnameable<T> for u32 where T: m::PubTr {}
fn main() {} fn main() {}