bjoernager/rust
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Disallow (min) specialization imps with no items

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Such implementations are usually mistakes and are not used in the
compiler or standard library (after this commit) so forbid them with
`min_specialization`.
This commit is contained in:
Matthew Jasper 2023-05-05 12:54:58 +01:00
parent dd9a7bf848
commit bd928a0b5e
11 changed files with 112 additions and 23 deletions
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2
compiler/rustc_middle/src/mir/mod.rs
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@ -2728,8 +2728,6 @@ pub struct UserTypeProjection {
pub projs: Vec<ProjectionKind>,
}
impl Copy for ProjectionKind {}
impl UserTypeProjection {
pub(crate) fn index(mut self) -> Self {
self.projs.push(ProjectionElem::Index(()));