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rust/tests/ui/impl-trait
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Usman Akinyemi a677828c48 Add boxing suggestions for return expressions in impl Trait functions 
Signed-off-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
2026-04-26 17:43:40 +05:30
..
alias-liveness
mark two polonius tests as known-bug
2026-02-28 11:08:02 +01:00
apit
…
auto-trait-leakage
Ignore tests for the parallel frontend
2026-03-17 17:39:59 +08:00
auxiliary
…
diagnostics
Revert #152369 because of multiple regressions
2026-04-09 18:53:59 +02:00
explicit-generic-args-with-impl-trait
…
in-bindings
When more than a single impl and less than 4 could apply, point at them
2025-10-31 20:44:01 +00:00
in-ctfe
…
in-trait
Make E0284 generic argument suggestions more explicit
2026-04-20 16:46:57 +06:00
issues
Make messages more generic
2026-03-28 16:18:11 +09:00
member-constraints
in opaque type handling lift region vars to static if they outlive placeholders
2025-10-13 15:26:22 +01:00
method
Gate 2015 UI tests
2025-11-27 11:19:00 -05:00
multiple-lifetimes
…
non-defining-uses
When a trait isn't implemented, but another similar impl is found, point at it:
2025-10-31 20:38:31 +00:00
precise-capturing
Sort pre-expansion gates and add more visible disclaimers
2026-04-01 17:01:58 +02:00
rpit
Tests for precise-capture through RPIT and TAIT
2026-04-14 21:14:10 +10:00
transmute
Separate transmute checking from typeck.
2025-08-22 20:10:27 +00:00
associated-impl-trait-type-generic-trait.rs
…
associated-impl-trait-type-into-emplacable.rs
add regression test
2026-04-07 16:06:24 +08:00
associated-impl-trait-type-issue-114325.rs
…
associated-impl-trait-type-trivial.rs
…
associated-impl-trait-type.rs
…
associated-type-cycle.rs
…
associated-type-cycle.stderr
Make all multipart suggestions verbose
2026-02-18 18:33:35 +00:00
associated-type-fn-bound-issue-72207.rs
Add a regression test for #72207
2025-10-12 08:24:39 +09:00
associated-type-undefine.rs
…
associated-type-undefine.stderr
…
async_scope_creep.rs
…
auto-trait-selection-freeze.next.stderr
support non-defining uses in HIR typeck
2025-08-25 14:20:18 +02:00
auto-trait-selection-freeze.old.stderr
Point to correct argument in Func Call when Self type fails trait bound
2025-07-07 16:47:15 +08:00
auto-trait-selection-freeze.rs
…
auto-trait-selection.next.stderr
support non-defining uses in HIR typeck
2025-08-25 14:20:18 +02:00
auto-trait-selection.old.stderr
Point to correct argument in Func Call when Self type fails trait bound
2025-07-07 16:47:15 +08:00
auto-trait-selection.rs
…
autoderef.rs
…
basic-trait-impl.rs
cleaned up some tests
2025-06-30 11:50:19 +05:00
bivariant-lifetime-liveness.rs
…
bound-normalization-fail.rs
…
bound-normalization-fail.stderr
…
bound-normalization-pass.rs
…
bounds_regression.rs
…
call_method_ambiguous.rs
allow method calls on opaques
2025-09-26 16:33:15 +02:00
call_method_on_inherent_impl_on_rigid_type.current.stderr
Gate 2015 UI tests
2025-11-27 11:19:00 -05:00
call_method_on_inherent_impl_on_rigid_type.next.stderr
Gate 2015 UI tests
2025-11-27 11:19:00 -05:00
call_method_on_inherent_impl_on_rigid_type.rs
Gate 2015 UI tests
2025-11-27 11:19:00 -05:00
call_method_on_inherent_impl_ref-err.current.stderr
allow method calls on opaques
2025-09-26 16:33:15 +02:00
call_method_on_inherent_impl_ref-err.next.stderr
allow method calls on opaques
2025-09-26 16:33:15 +02:00
call_method_on_inherent_impl_ref-err.rs
allow method calls on opaques
2025-09-26 16:33:15 +02:00
call_method_on_inherent_impl_ref-ok.rs
allow method calls on opaques
2025-09-26 16:33:15 +02:00
call_method_on_inherent_impl.rs
allow method calls on opaques
2025-09-26 16:33:15 +02:00
call_method_without_import.no_import.stderr
fix: Add col separator before secondary messages with no source
2025-08-26 15:15:17 -06:00
call_method_without_import.rs
…
capture-lifetime-not-in-hir.rs
Rename #![rustc_variance_of_opaques] to #![rustc_dump_variances_of_opaques]
2026-03-02 19:31:15 +01:00
capture-lifetime-not-in-hir.stderr
…
captured-invalid-lifetime.rs
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captured-invalid-lifetime.stderr
…
closure-calling-parent-fn.rs
…
closure-in-impl-trait-arg.rs
…
closure-in-impl-trait.rs
…
closure-in-type.rs
…
cross-return-site-inference.rs
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cross-return-site-inference.stderr
…
deduce-signature-from-supertrait.rs
…
define-via-const.rs
…
define-via-extern.rs
…
define-via-extern.stderr
…
defined-by-trait-resolution.rs
…
defining-use-captured-non-universal-region.infer.stderr
…
defining-use-captured-non-universal-region.rs
…
defining-use-captured-non-universal-region.statik.stderr
…
defining-use-uncaptured-non-universal-region-2.rs
…
defining-use-uncaptured-non-universal-region-3.rs
…
defining-use-uncaptured-non-universal-region.rs
…
deprecated_annotation.rs
…
different_where_bounds.rs
…
divergence.rs
…
does-not-live-long-enough.rs
…
does-not-live-long-enough.stderr
handle opaque types before region inference
2025-08-20 11:04:38 +02:00
dont-suggest-box-on-empty-else-arm.rs
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dont-suggest-box-on-empty-else-arm.stderr
…
dyn-impl-type-mismatch.rs
…
dyn-impl-type-mismatch.stderr
…
dyn-incompatible-trait-in-return-position-dyn-trait.rs
…
dyn-incompatible-trait-in-return-position-dyn-trait.stderr
…
dyn-incompatible-trait-in-return-position-impl-trait.rs
…
dyn-incompatible-trait-in-return-position-impl-trait.stderr
Add boxing suggestions for return expressions in impl Trait functions
2026-04-26 17:43:40 +05:30
dyn-trait-elided-two-inputs-assoc.rs
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dyn-trait-elided-two-inputs-param.rs
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dyn-trait-elided-two-inputs-ref-assoc.rs
…
dyn-trait-elided-two-inputs-ref-param.rs
…
dyn-trait-return-should-be-impl-trait.edition2015.stderr
…
dyn-trait-return-should-be-impl-trait.edition2021.stderr
…
dyn-trait-return-should-be-impl-trait.rs
…
eagerly-reveal-in-local-body.rs
…
equal-hidden-lifetimes.rs
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equality2.rs
allow incomplete_features in most UI tests
2026-03-21 20:10:07 +00:00
equality2.stderr
allow incomplete_features in most UI tests
2026-03-21 20:10:07 +00:00
equality-in-canonical-query.rs
…
equality-rpass.rs
allow incomplete_features in most UI tests
2026-03-21 20:10:07 +00:00
equality.rs
allow incomplete_features in most UI tests
2026-03-21 20:10:07 +00:00
equality.stderr
Improve E0308 error message for impl Trait return mismatches
2026-04-20 13:59:39 +05:30
erased-regions-in-hidden-ty.current.stderr
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erased-regions-in-hidden-ty.next.stderr
…
erased-regions-in-hidden-ty.rs
Rename #[rustc_hidden_type_of_opaques] to #[rustc_dump_hidden_type_of_opaques]
2026-04-10 12:14:07 +02:00
example-calendar.rs
Remove unused features in tests
2026-03-04 08:06:45 +08:00
example-st.rs
…
example-st.stderr
bless tests with new lint messages
2025-08-19 21:27:10 +02:00
extra-impl-in-trait-impl.fixed
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extra-impl-in-trait-impl.rs
…
extra-impl-in-trait-impl.stderr
…
extra-item.rs
…
extra-item.stderr
…
failed-to-resolve-instance-ice-105488.rs
…
failed-to-resolve-instance-ice-105488.stderr
…
failed-to-resolve-instance-ice-123145.rs
…
failed-to-resolve-instance-ice-123145.stderr
…
fallback_inference.rs
…
fallback_inference.stderr
Make E0284 generic argument suggestions more explicit
2026-04-20 16:46:57 +06:00
fallback.rs
…
feature-self-return-type.rs
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feature-self-return-type.stderr
…
fresh-lifetime-from-bare-trait-obj-114664.rs
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fresh-lifetime-from-bare-trait-obj-114664.stderr
bless tests with new lint messages
2025-08-19 21:27:10 +02:00
future-no-bound-vars-ice-112347.rs
…
generic-with-implicit-hrtb-without-dyn.edition2015.stderr
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generic-with-implicit-hrtb-without-dyn.edition2021.stderr
Gate 2018 UI tests
2025-11-27 14:13:58 -05:00
generic-with-implicit-hrtb-without-dyn.pre2021.stderr
Gate 2018 UI tests
2025-11-27 14:13:58 -05:00
generic-with-implicit-hrtb-without-dyn.rs
Gate 2018 UI tests
2025-11-27 14:13:58 -05:00
hidden-lifetimes.edition2015.stderr
mark two polonius tests as known-bug
2026-02-28 11:08:02 +01:00
hidden-lifetimes.edition2024.stderr
mark two polonius tests as known-bug
2026-02-28 11:08:02 +01:00
hidden-lifetimes.rs
mark two polonius tests as known-bug
2026-02-28 11:08:02 +01:00
hidden-type-is-opaque-2.default.stderr
Fix; correct placement of type inference error for method calls
2025-10-07 09:51:16 +01:00
hidden-type-is-opaque-2.next.stderr
Fix; correct placement of type inference error for method calls
2025-10-07 09:51:16 +01:00
hidden-type-is-opaque-2.rs
…
hidden-type-is-opaque.rs
…
higher-ranked-lifetime-capture-deduplication.edition2015.stderr
Deduplicate higher-ranked lifetime capture errors in impl Trait
2025-10-12 16:51:28 +09:00
higher-ranked-lifetime-capture-deduplication.edition2024.stderr
Deduplicate higher-ranked lifetime capture errors in impl Trait
2025-10-12 16:51:28 +09:00
higher-ranked-lifetime-capture-deduplication.rs
Deduplicate higher-ranked lifetime capture errors in impl Trait
2025-10-12 16:51:28 +09:00
ice-148622-opaque-as-const-generics.rs
Fix ICE when collecting opaques from trait method declarations
2025-11-21 21:42:40 +09:00
ice-148622-opaque-as-const-generics.stderr
Fix ICE when collecting opaques from trait method declarations
2025-11-21 21:42:40 +09:00
ice-unexpected-param-type-whensubstituting-in-region-112823.current.stderr
…
ice-unexpected-param-type-whensubstituting-in-region-112823.next.stderr
…
ice-unexpected-param-type-whensubstituting-in-region-112823.rs
…
impl_fn_associativity.rs
…
impl_trait_projections.rs
…
impl_trait_projections.stderr
…
impl-fn-hrtb-bounds-2.edition2015.stderr
…
impl-fn-hrtb-bounds-2.edition2024.stderr
…
impl-fn-hrtb-bounds-2.rs
…
impl-fn-hrtb-bounds.rs
…
impl-fn-hrtb-bounds.stderr
Deduplicate higher-ranked lifetime capture errors in impl Trait
2025-10-12 16:51:28 +09:00
impl-fn-parsing-ambiguities.rs
…
impl-fn-parsing-ambiguities.stderr
Deduplicate higher-ranked lifetime capture errors in impl Trait
2025-10-12 16:51:28 +09:00
impl-fn-predefined-lifetimes.edition2015.stderr
…
impl-fn-predefined-lifetimes.edition2024.stderr
…
impl-fn-predefined-lifetimes.rs
…
impl-fn-rpit-opaque-107883.rs
…
impl-generic-mismatch.rs
…
impl-generic-mismatch.stderr
fix: Add col separator before secondary messages with no source
2025-08-26 15:15:17 -06:00
impl-subtyper2.rs
…
impl-subtyper.rs
…
impl-trait-in-generic-param.rs
clean up some tests
2026-01-22 19:50:00 +01:00
impl-trait-in-generic-param.stderr
clean up some tests
2026-01-22 19:50:00 +01:00
impl-trait-in-macro.rs
…
impl-trait-in-macro.stderr
…
impl-trait-plus-priority.rs
…
impl-trait-plus-priority.stderr
…
implicit-capture-late.rs
Rename #![rustc_variance_of_opaques] to #![rustc_dump_variances_of_opaques]
2026-03-02 19:31:15 +01:00
implicit-capture-late.stderr
…
in-assoc-type-unconstrained.rs
…
in-assoc-type-unconstrained.stderr
…
in-assoc-type.rs
…
in-assoc-type.stderr
…
inside-item-nested-in-anon-const.rs
…
lazy_subtyping_of_opaques.rs
rename select_where_possible and select_all_or_error
2025-10-07 23:02:23 +01:00
lifetime-ambiguity-regression.rs
…
lifetimes.rs
…
mapping-duplicated-lifetimes-issue-114597.rs
…
multiple-defining-usages-in-body.rs
…
multiple-defining-usages-in-body.stderr
…
must_outlive_least_region_or_bound.rs
…
must_outlive_least_region_or_bound.stderr
…
name-mentioning-macro.rs
…
name-mentioning-macro.stderr
…
needs_least_region_or_bound.rs
…
negative-reasoning.rs
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negative-reasoning.stderr
…
nested_impl_trait.rs
…
nested_impl_trait.stderr
When more than a single impl and less than 4 could apply, point at them
2025-10-31 20:44:01 +00:00
nested-hkl-lifetime.rs
…
nested-return-type2-tait2.rs
…
nested-return-type2-tait2.stderr
…
nested-return-type2-tait3.rs
…
nested-return-type2-tait3.stderr
…
nested-return-type2-tait.rs
…
nested-return-type2-tait.stderr
…
nested-return-type2.rs
…
nested-return-type3-tait2.rs
…
nested-return-type3-tait2.stderr
…
nested-return-type3-tait3.rs
…
nested-return-type3-tait3.stderr
…
nested-return-type3-tait.rs
…
nested-return-type3-tait.stderr
…
nested-return-type3.rs
…
nested-return-type4.rs
…
nested-return-type4.stderr
…
nested-return-type.rs
…
nested-rpit-hrtb-2.rs
…
nested-rpit-hrtb-2.stderr
…
nested-rpit-hrtb.rs
in opaque type handling lift region vars to static if they outlive placeholders
2025-10-13 15:26:22 +01:00
nested-rpit-hrtb.stderr
Auto merge of #147602 - JohnTitor:dedup-lifetime-capture-errors, r=estebank
2025-12-10 06:52:27 +00:00
nested-rpit-with-anonymous-lifetimes.rs
…
nesting.rs
…
no-anonymize-regions.rs
handle opaque types before region inference
2025-08-20 11:04:38 +02:00
no-method-suggested-traits.rs
Gate 2015 UI tests
2025-11-27 11:19:00 -05:00
no-method-suggested-traits.stderr
Gate 2015 UI tests
2025-11-27 11:19:00 -05:00
no-trait.rs
…
no-trait.stderr
…
normalize-opaque-with-bound-vars.rs
…
normalize-tait-in-const.rs
…
normalize-tait-in-const.stderr
Constify Fn* traits
2025-07-08 14:36:43 +00:00
not_general_enough_regression_106630.rs
…
opaque-cast-field-access-in-future.rs
…
opaque-cast-field-access-in-future.stderr
Tweak wording of failed predicate in inference error
2026-03-16 17:58:49 +00:00
opaque-hidden-inferred-rpitit.rs
…
opaque-used-in-extraneous-argument.rs
…
opaque-used-in-extraneous-argument.stderr
Merge E0412 into E0425
2025-12-02 18:25:13 +00:00
opt-out-bound-not-satisfied.rs
Reword diagnostic about relaxing non-Sized bound
2025-07-18 12:13:30 +02:00
opt-out-bound-not-satisfied.stderr
Reword diagnostic about relaxing non-Sized bound
2025-07-18 12:13:30 +02:00
point-to-type-err-cause-on-impl-trait-return.rs
…
point-to-type-err-cause-on-impl-trait-return.stderr
Add boxing suggestions for return expressions in impl Trait functions
2026-04-26 17:43:40 +05:30
printing-binder.rs
…
printing-binder.stderr
…
private_unused.rs
…
projection-mismatch-in-impl-where-clause.rs
…
projection-mismatch-in-impl-where-clause.stderr
…
projection.rs
…
question_mark.rs
…
recursive-auto-trait.rs
…
recursive-bound-eval.rs
allow method calls on opaques
2025-09-26 16:33:15 +02:00
recursive-coroutine-boxed.rs
allow method calls on opaques
2025-09-26 16:33:15 +02:00
recursive-coroutine-indirect.current.stderr
…
recursive-coroutine-indirect.next.stderr
…
recursive-coroutine-indirect.rs
…
recursive-ice-101862.rs
…
recursive-ice-101862.stderr
…
recursive-impl-trait-type-direct.rs
…
recursive-impl-trait-type-indirect.rs
…
recursive-impl-trait-type-indirect.stderr
…
recursive-impl-trait-type-through-non-recursive.rs
…
recursive-impl-trait-type-through-non-recursive.stderr
…
recursive-in-exhaustiveness.current.stderr
support non-defining uses in HIR typeck
2025-08-25 14:20:18 +02:00
recursive-in-exhaustiveness.next.stderr
Use singular wording for single _ placeholders in type suggestions
2026-04-20 22:21:51 +08:00
recursive-in-exhaustiveness.rs
support non-defining uses in HIR typeck
2025-08-25 14:20:18 +02:00
recursive-parent-trait-method-call.rs
…
recursive-type-alias-impl-trait-declaration-too-subtle-2.rs
…
recursive-type-alias-impl-trait-declaration-too-subtle.rs
…
recursive-type-alias-impl-trait-declaration-too-subtle.stderr
…
recursive-type-alias-impl-trait-declaration.rs
…
recursive-type-alias-impl-trait-declaration.stderr
When more than a single impl and less than 4 could apply, point at them
2025-10-31 20:44:01 +00:00
region-escape-via-bound-contravariant-closure.rs
…
region-escape-via-bound-contravariant.rs
…
region-escape-via-bound.rs
…
region-escape-via-bound.stderr
…
return-position-impl-trait-minimal.rs
…
reveal-during-codegen.rs
…
rpit-assoc-pair-with-lifetime.rs
Reword mismatched-lifetime-syntaxes text based on feedback
2025-07-14 09:52:58 -04:00
rpit-assoc-pair-with-lifetime.stderr
Use unnamed lifetime spans as primary spans for MISMATCHED_LIFETIME_SYNTAXES
2025-08-23 22:11:43 +00:00
rpit-not-sized.rs
…
rpit-not-sized.stderr
…
stashed-diag-issue-121504.rs
Unify wording of resolve error
2026-02-17 16:51:44 +00:00
stashed-diag-issue-121504.stderr
Unify wording of resolve error
2026-02-17 16:51:44 +00:00
static-lifetime-return-position-impl-trait.rs
…
static-return-lifetime-infered.rs
…
static-return-lifetime-infered.stderr
…
stranded-opaque.rs
…
stranded-opaque.stderr
…
struct-field-fragment-in-name.rs
…
suggest-calling-rpit-closure.rs
…
suggest-calling-rpit-closure.stderr
…
trait_resolution.rs
…
trait_type.rs
…
trait_type.stderr
Improve cross-crate trait impl param mismatch suggestions
2026-02-28 05:29:28 +00:00
trait_upcasting_reference_mismatch.rs
…
trait_upcasting_reference_mismatch.stderr
…
trait_upcasting.rs
…
two_tait_defining_each_other2.current.stderr
…
two_tait_defining_each_other2.next.stderr
add tests, silence type annotations needed errors for opaques
2025-09-18 12:58:39 +02:00
two_tait_defining_each_other2.rs
add tests, silence type annotations needed errors for opaques
2025-09-18 12:58:39 +02:00
two_tait_defining_each_other3.current.stderr
…
two_tait_defining_each_other3.rs
…
two_tait_defining_each_other.current.stderr
…
two_tait_defining_each_other.rs
…
type_parameters_captured.rs
…
type_parameters_captured.stderr
…
type-alias-generic-param.rs
…
type-alias-generic-param.stderr
bless tests with new lint messages
2025-08-19 21:27:10 +02:00
type-alias-impl-trait-in-fn-body.rs
…
type-alias-impl-trait-in-fn-body.stderr
…
type-arg-mismatch-due-to-impl-trait.rs
…
type-arg-mismatch-due-to-impl-trait.stderr
…
unactionable_diagnostic.fixed
…
unactionable_diagnostic.rs
…
unactionable_diagnostic.stderr
…
universal_hrtb_anon.rs
…
universal_hrtb_named.rs
…
universal_in_adt_in_parameters.rs
…
universal_in_impl_trait_in_parameters.rs
…
universal_in_trait_defn_parameters.rs
…
universal_multiple_bounds.rs
…
universal_wrong_bounds.rs
…
universal_wrong_bounds.stderr
…
universal_wrong_hrtb.rs
…
universal_wrong_hrtb.stderr
…
universal-mismatched-type.rs
…
universal-mismatched-type.stderr
…
universal-two-impl-traits.rs
…
universal-two-impl-traits.stderr
…
unsafety-checking-cycle.rs
…
unsize_adt.rs
…
unsize_slice.rs
…
unsize-cast-validation-rpit.rs
…
unsized_coercion2.old.stderr
…
unsized_coercion2.rs
…
unsized_coercion3.next.stderr
Revert "bless some tests"
2026-03-23 12:09:34 +01:00
unsized_coercion3.old.stderr
Revert "bless some tests"
2026-03-23 12:09:34 +01:00
unsized_coercion3.rs
Revert "bless some tests"
2026-03-23 12:09:34 +01:00
unsized_coercion4.rs
…
unsized_coercion5.old.stderr
…
unsized_coercion5.rs
…
unsized_coercion.next.stderr
Revert "bless some tests"
2026-03-23 12:09:34 +01:00
unsized_coercion.rs
Revert "bless some tests"
2026-03-23 12:09:34 +01:00
upvar_captures.rs
…
upvar_captures.stderr
…
variance.e2024.stderr
…
variance.old.stderr
…
variance.rs
Rename #![rustc_variance_of_opaques] to #![rustc_dump_variances_of_opaques]
2026-03-02 19:31:15 +01:00
wf-check-hidden-type.rs
…
wf-check-hidden-type.stderr
diagnostics :3
2025-08-20 11:10:38 +02:00
wf-eval-order.rs
…
where-allowed-2.rs
Gate 2018 UI tests
2025-11-27 14:13:58 -05:00
where-allowed-2.stderr
Tweak wording of failed predicate in inference error
2026-03-16 17:58:49 +00:00
where-allowed.rs
Gate 2018 UI tests
2025-11-27 14:13:58 -05:00
where-allowed.stderr
Update UI tests for SyncView rename
2026-04-06 18:10:08 -07:00
xcrate_simple.rs
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xcrate.rs
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