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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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3
compiler/rustc_hir_analysis/messages.ftl
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@ -275,6 +275,9 @@ hir_analysis_specialization_trait = implementing `rustc_specialization_trait` tr
hir_analysis_closure_implicit_hrtb = implicit types in closure signatures are forbidden when `for<...>` is present
.label = `for<...>` is here
hir_analysis_empty_specialization = specialization impl does not specialize any associated items
.note = impl is a specialization of this impl
hir_analysis_const_specialize = cannot specialize on const impl with non-const impl
hir_analysis_static_specialize = cannot specialize on `'static` lifetime