rust/specialization at d0ce391b14b492c4893a48895f4756999573aac6 - rust

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许杰友 Jieyou Xu (Joe) ec2cc761bc [AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives		2024-02-16 20:02:50 +00:00
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ctfe	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
defaultimpl	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
min_specialization	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
soundness	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
assoc-ty-graph-cycle.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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const_trait_impl.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
const_trait_impl.stderr	Continue to borrowck even if there were previous errors	2024-02-08 08:10:43 +00:00
cross-crate-defaults.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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default-associated-type-bound-1.rs
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default-generic-associated-type-bound.rs
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issue-33017.rs
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issue-40582.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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issue-45814.current.stderr	Do not assemble candidates for default impls	2024-02-13 19:20:13 +00:00
issue-45814.negative.stderr	Do not assemble candidates for default impls	2024-02-13 19:20:13 +00:00
issue-45814.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
issue-50452-fail.rs
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issue-63716-parse-async.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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issue-68830-spurious-diagnostics.rs
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issue-70442.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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issue-111232.rs	remove unnecessary attribute from a diagnostic	2023-05-05 17:28:52 +09:00
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non-defaulted-item-fail.rs
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README-rpass.md
README.md
specialization-allowed-cross-crate.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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specialization-assoc-fns.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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specialization-basics.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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specialization-cross-crate-no-gate.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
specialization-cross-crate.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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specialization-default-items-drop-coherence.coherence.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
specialization-default-items-drop-coherence.next.stderr	Stop bailing out from compilation just because there were incoherent traits	2024-02-05 10:17:31 +00:00
specialization-default-items-drop-coherence.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
specialization-default-methods.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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specialization-default-projection.rs
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specialization-default-types.rs
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specialization-feature-gate-default.rs
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specialization-feature-gate-overlap.rs
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specialization-no-default.rs
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specialization-out-of-order.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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specialization-overlap-hygiene.rs
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specialization-overlap-negative.rs
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specialization-overlap.rs
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specialization-polarity.rs
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specialization-supertraits.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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specialization-translate-projections-with-lifetimes.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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specialization-translate-projections-with-params.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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transmute-specialization.rs	[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives	2024-02-16 20:02:50 +00:00
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README.md

This directory contains the test for incorrect usage of specialization that should lead to compile failure. Those tests break down into a few categories:

Feature gating
- On use of the default keyword
- On overlapping impls
Overlap checking with specialization enabled
- Basic overlap scenarios
  - Includes purely structural overlap
  - Includes purely trait-based overlap
  - Includes mix
- Overlap with differing polarity
Attempt to specialize without using default
Attempt to change impl polarity in a specialization
Attempt to rely on projection of a default type
- Rely on it externally in both generic and monomorphic contexts
- Rely on it both within an impl and outside it