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Jacob Pratt 3b4c17915e Rollup merge of #154377 - mu001999-contrib:fix/dead-code, r=TaKO8Ki 
Fix `#[expect(dead_code)]` liveness propagation

Fixes https://github.com/rust-lang/rust/issues/154324
Fixes https://github.com/rust-lang/rust/issues/152370 (cc @eggyal)

Previously, when traversing from a `ComesFromAllowExpect::Yes` item (i.e., with `#[allow(dead_code)]` or `#[expect(dead_code)]`), other `ComesFromAllowExpect::Yes` items reached during propagation would be updated to `ComesFromAllowExpect::No` and inserted into `live_symbols`. That caused `dead_code` lint couldn't be emitted correctly.

After this PR, `ComesFromAllowExpect::Yes` items no longer incorrectly update other `ComesFromAllowExpect::Yes` items during propagation or mark them live by mistake, then `dead_code` lint could behave as expected.
2026-04-21 08:22:16 -04:00
..
auxiliary
Cleaned up 4 tests in tests/ui/issues
2025-04-19 01:10:26 -06:00
alias-in-pat.rs
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alias-type-used-as-generic-arg-in-impl.rs
Add test for issue 127911 and 128839
2025-05-29 20:51:51 +08:00
allow-or-expect-dead_code-114557-2.rs
tests: fix some typos in comment
2025-03-07 10:50:31 +08:00
allow-or-expect-dead_code-114557-2.stderr
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allow-or-expect-dead_code-114557-3.rs
tests: fix some typos in comment
2025-03-07 10:50:31 +08:00
allow-or-expect-dead_code-114557-3.stderr
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allow-or-expect-dead_code-114557.rs
tests: fix some typos in comment
2025-03-07 10:50:31 +08:00
allow-trait-or-impl.rs
Impls and impl items inherit lint levels of the corresponding traits and trait items
2025-12-28 15:17:14 +08:00
allow-trait-or-impl.stderr
Impls and impl items inherit lint levels of the corresponding traits and trait items
2025-12-28 15:17:14 +08:00
allow-unused-trait.rs
Impls and impl items inherit lint levels of the corresponding traits and trait items
2025-12-28 15:17:14 +08:00
associated-type.rs
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basic.rs
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basic.stderr
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closure-bang.rs
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closure-bang.stderr
Do not mention -Zmacro-backtrace for std macros that are a wrapper around a compiler intrinsic
2026-01-26 17:34:31 +00:00
const-and-self.rs
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const-and-self.stderr
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const-underscore-issue-101532.rs
Add test for dead code warnings in const _
2026-03-24 13:52:00 +01:00
const-underscore-issue-101532.stderr
Add test for dead code warnings in const _
2026-03-24 13:52:00 +01:00
const-underscore-issue-142104.rs
Always consider const _ items as live for dead code analysis
2025-06-09 15:48:06 +02:00
empty-unused-enum.rs
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empty-unused-enum.stderr
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empty-unused-public-enum.rs
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enum-variants.rs
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expect-dead-code-152370.rs
fix #[expect(dead_code)] liveness propagation
2026-04-09 23:53:42 +08:00
expect-dead-code-154324.rs
fix #[expect(dead_code)] liveness propagation
2026-04-09 23:53:42 +08:00
expect-dead-code-field-read-in-dead-fn.rs
fix #[expect(dead_code)] liveness propagation
2026-04-09 23:53:42 +08:00
expect-dead-code-through-non-expect-item.rs
fix #[expect(dead_code)] liveness propagation
2026-04-09 23:53:42 +08:00
impl-trait.rs
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impl-trait.stderr
…
in-closure.rs
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in-closure.stderr
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inferred-generic-arg.rs
Fix types being marked as dead when they are inferred generic arguments
2025-10-30 08:31:07 +01:00
issue-41883.rs
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issue-41883.stderr
Marks ADT live if it appears in pattern
2025-06-14 13:44:43 +08:00
issue-59003.rs
Marks ADT live if it appears in pattern
2025-06-14 13:44:43 +08:00
issue-68408-false-positive.rs
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issue-85071-2.rs
Report uninhabited call return types on MIR.
2025-10-11 20:50:20 +00:00
issue-85071-2.stderr
Diagnose liveness on MIR.
2025-10-11 20:50:21 +00:00
issue-85071.rs
Report uninhabited call return types on MIR.
2025-10-11 20:50:20 +00:00
issue-85071.stderr
Diagnose liveness on MIR.
2025-10-11 20:50:21 +00:00
issue-85255.rs
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issue-85255.stderr
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leading-underscore.rs
tests: remove //@ pretty-expanded usages
2024-11-26 02:50:48 +08:00
lint-dead-code-1.rs
Add regression test showing we don't realize some consts are used
2025-01-29 15:45:13 +00:00
lint-dead-code-1.stderr
Add regression test showing we don't realize some consts are used
2025-01-29 15:45:13 +00:00
lint-dead-code-2.rs
remove support for the #[start] attribute
2025-01-21 06:59:15 -07:00
lint-dead-code-2.stderr
remove support for the #[start] attribute
2025-01-21 06:59:15 -07:00
lint-dead-code-3.rs
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lint-dead-code-3.stderr
…
lint-dead-code-4.rs
…
lint-dead-code-4.stderr
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lint-dead-code-5.rs
…
lint-dead-code-5.stderr
…
lint-dead-code-6.rs
…
lint-dead-code-6.stderr
…
lint-unused-adt-appeared-in-pattern.rs
Marks ADT live if it appears in pattern
2025-06-14 13:44:43 +08:00
lint-unused-adt-appeared-in-pattern.stderr
Marks ADT live if it appears in pattern
2025-06-14 13:44:43 +08:00
multiple-dead-codes-in-the-same-struct.rs
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multiple-dead-codes-in-the-same-struct.stderr
Marks ADT live if it appears in pattern
2025-06-14 13:44:43 +08:00
newline-span.rs
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newline-span.stderr
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no-dead-code-for-static-trait-impl.rs
Cleaned up 4 tests in tests/ui/issues
2025-04-19 01:10:26 -06:00
no-dead-code-reexported-types-across-crates.rs
Cleaned up 4 tests in tests/ui/issues
2025-04-19 01:10:26 -06:00
not-lint-adt-appeared-in-pattern-issue-120770.rs
Marks ADT live if it appears in pattern
2025-06-14 13:44:43 +08:00
offset-of-correct-param-env.rs
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offset-of.rs
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offset-of.stderr
…
pub-field-in-priv-mod.rs
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pub-field-in-priv-mod.stderr
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self-assign.rs
fix: re-enable self-assignment
2025-08-10 22:50:14 +09:00
self-assign.stderr
fix: re-enable self-assignment
2025-08-10 22:50:14 +09:00
trait-impl.rs
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trait-only-used-as-type-bound.rs
Add test for issue 127911 and 128839
2025-05-29 20:51:51 +08:00
tuple-struct-field.rs
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tuple-struct-field.stderr
Show diff suggestion format on verbose replacement
2025-02-10 20:21:39 +00:00
type-alias.rs
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type-alias.stderr
…
type-in-foreign.rs
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type-in-transparent.rs
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unused-adt-impl-pub-trait-with-assoc-const.rs
Marks ADT live if it appears in pattern
2025-06-14 13:44:43 +08:00
unused-adt-impl-pub-trait-with-assoc-const.stderr
Marks ADT live if it appears in pattern
2025-06-14 13:44:43 +08:00
unused-adt-impls-pub-trait.rs
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unused-adt-impls-pub-trait.stderr
…
unused-adt-impls-trait.rs
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unused-adt-impls-trait.stderr
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unused-assoc-fns.rs
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unused-assoc-fns.stderr
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unused-enum.rs
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unused-enum.stderr
…
unused-fn-with-check-pass.rs
Add dead-code/unused-fn-with-check-pass UI test
2025-12-26 08:33:46 +01:00
unused-fn-with-check-pass.stderr
compiler/middle/lint: Suggest #[expect(dead_code)] as alternative to #[allow(dead_code)]
2025-12-26 08:38:20 +01:00
unused-struct-derive-default.rs
Make Default const and add some const Default impls
2025-07-07 22:09:37 +00:00
unused-struct-derive-default.stderr
Marks ADT live if it appears in pattern
2025-06-14 13:44:43 +08:00
unused-struct-variant.rs
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unused-struct-variant.stderr
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unused-trait-with-assoc-const.rs
Check assoc consts and tys later like assoc fns
2025-07-10 23:39:54 +08:00
unused-trait-with-assoc-const.stderr
Check assoc consts and tys later like assoc fns
2025-07-10 23:39:54 +08:00
unused-trait-with-assoc-ty.rs
Check assoc consts and tys later like assoc fns
2025-07-10 23:39:54 +08:00
unused-trait-with-assoc-ty.stderr
Check assoc consts and tys later like assoc fns
2025-07-10 23:39:54 +08:00
unused-variant-pub.rs
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unused-variant.rs
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unused-variant.stderr
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with-core-crate.rs
Explicitly export core and std macros
2026-01-13 08:47:48 +01:00
with-core-crate.stderr
Explicitly export core and std macros
2026-01-13 08:47:48 +01:00
with-impl.rs
…