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bors 78efca8845 Auto merge of #117278 - lcnr:try-normalize-ty, r=compiler-errors 
new solver normalization improvements

cool beans

At the core of this PR is a `try_normalize_ty` which stops for rigid aliases by using `commit_if_ok`.

Reworks alias-relate to fully normalize both the lhs and rhs and then equate the resulting rigid (or inference) types. This fixes https://github.com/rust-lang/trait-system-refactor-initiative/issues/68 by avoiding the exponential blowup. Also supersedes #116369 by only defining opaque types if the hidden type is rigid.

I removed the stability check in `EvalCtxt::evaluate_goal` due to https://github.com/rust-lang/trait-system-refactor-initiative/issues/75. While I personally have opinions on how to fix it, that still requires further t-types/`@nikomatsakis` buy-in, so I removed that for now. Once we've decided on our approach there, we can revert this commit.

r? `@compiler-errors`
2023-11-17 10:16:41 +00:00
..
alias-liveness
Add some unsoundness tests for opaques capturing hidden regions not in substs
2023-10-14 13:26:30 +00:00
auxiliary
…
diagnostics
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explicit-generic-args-with-impl-trait
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in-trait
fallback for construct_generic_bound_failure
2023-11-04 22:15:22 +08:00
issues
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
multiple-lifetimes
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rpit
check for non-defining uses of RPIT
2023-08-14 15:25:20 +02:00
arg-position-impl-trait-too-long.rs
Don't print newlines in APITs
2023-05-25 02:45:14 +00:00
arg-position-impl-trait-too-long.stderr
Tweak wording of type errors involving type params
2023-10-18 23:53:18 +00:00
associated-impl-trait-type-generic-trait.rs
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associated-impl-trait-type-trivial.rs
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associated-impl-trait-type.rs
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async_scope_creep.rs
Remove DefiningAnchor::Bubble from opaque wf check
2023-10-16 15:50:31 +00:00
auto-trait-coherence.next.stderr
Add guard checking for associated types before computing intercrate ambiguity of projections. Bless test with more specific notes on the ambiguity cause.
2023-11-14 13:55:59 +01:00
auto-trait-coherence.old.stderr
explicitly handle auto trait leakage in coherence
2023-10-13 09:42:51 +00:00
auto-trait-coherence.rs
explicitly handle auto trait leakage in coherence
2023-10-13 09:42:51 +00:00
auto-trait-leak2.rs
Revert "Suggest using Arc on !Send/!Sync types"
2023-08-28 03:16:48 -07:00
auto-trait-leak2.stderr
Revert "Suggest using Arc on !Send/!Sync types"
2023-08-28 03:16:48 -07:00
auto-trait-leak-rpass.rs
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auto-trait-leak.rs
Stash and cancel cycle errors for auto trait leakage in opaques
2023-10-26 17:58:02 +00:00
auto-trait-leak.stderr
Stash and cancel cycle errors for auto trait leakage in opaques
2023-10-26 17:58:02 +00:00
autoderef.rs
Consider a goal as NOT changed if its response is identity modulo regions
2023-07-27 04:00:49 +00:00
bivariant-lifetime-liveness.rs
Flesh out tests more
2023-10-17 01:26:46 +00:00
bound-normalization-fail.rs
Stabilize impl_trait_projections
2023-09-08 03:45:36 +00:00
bound-normalization-fail.stderr
Stabilize impl_trait_projections
2023-09-08 03:45:36 +00:00
bound-normalization-pass.rs
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bounds_regression.rs
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
can-return-unconstrained-closure.rs
…
capture-lifetime-not-in-hir.rs
Stabilize impl_trait_projections
2023-09-08 03:45:36 +00:00
capture-lifetime-not-in-hir.stderr
Stabilize impl_trait_projections
2023-09-08 03:45:36 +00:00
closure-calling-parent-fn.rs
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closure-in-impl-trait-arg.rs
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closure-in-impl-trait.rs
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coherence-treats-tait-ambig.current.stderr
Treat TAIT equation as always ambiguous in coherence
2023-06-18 22:52:30 +00:00
coherence-treats-tait-ambig.rs
update tests
2023-09-21 08:17:58 +02:00
coherence-treats-tait-ambig.stderr
update tests
2023-09-21 08:17:58 +02:00
cross-return-site-inference.rs
Reorder fullfillment errors to keep more interesting ones first
2023-10-04 02:04:14 +00:00
cross-return-site-inference.stderr
Show suggestion for <SelfTy as Trait>::assoc_fn in more cases and fmt code
2023-10-04 02:04:14 +00:00
deduce-signature-from-supertrait.rs
Require TAITs to be mentioned in the signatures of functions that register hidden types for them
2023-07-07 13:13:18 +00:00
defined-by-trait-resolution.rs
allow opaques to be defined by trait queries
2023-07-14 12:35:33 +00:00
deprecated_annotation.rs
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divergence.rs
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does-not-live-long-enough.rs
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does-not-live-long-enough.stderr
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dont-suggest-box-on-empty-else-arm.rs
Don't suggest boxing an empty if/else arm
2023-06-11 00:19:56 +00:00
dont-suggest-box-on-empty-else-arm.stderr
Don't suggest boxing an empty if/else arm
2023-06-11 00:19:56 +00:00
dyn-trait-elided-two-inputs-assoc.rs
…
dyn-trait-elided-two-inputs-param.rs
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dyn-trait-elided-two-inputs-ref-assoc.rs
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dyn-trait-elided-two-inputs-ref-param.rs
…
dyn-trait-return-should-be-impl-trait.rs
Remove return type sized check hack from hir typeck
2023-05-18 01:53:01 +00:00
dyn-trait-return-should-be-impl-trait.stderr
Remove return type sized check hack from hir typeck
2023-05-18 01:53:01 +00:00
equal-hidden-lifetimes.rs
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equality2.rs
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equality2.stderr
…
equality-in-canonical-query.clone.stderr
revert rust-lang/rust#114586
2023-10-18 06:19:04 +00:00
equality-in-canonical-query.rs
revert rust-lang/rust#114586
2023-10-18 06:19:04 +00:00
equality-rpass.rs
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equality-rpass.stderr
…
equality.rs
…
equality.stderr
Don't sort strings right after we just sorted by types
2023-06-27 23:31:06 +00:00
erased-regions-in-hidden-ty.current.stderr
finish RegionKind rename
2023-11-14 13:13:27 +00:00
erased-regions-in-hidden-ty.next.stderr
finish RegionKind rename
2023-11-14 13:13:27 +00:00
erased-regions-in-hidden-ty.rs
Let's see what those opaque types actually are
2023-10-23 16:18:35 -04:00
example-calendar.rs
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example-st.rs
…
extra-impl-in-trait-impl.fixed
improve error for impl<..> impl Trait for Type
2023-05-13 10:51:21 +02:00
extra-impl-in-trait-impl.rs
improve error for impl<..> impl Trait for Type
2023-05-13 10:51:21 +02:00
extra-impl-in-trait-impl.stderr
improve error for impl<..> impl Trait for Type
2023-05-13 10:51:21 +02:00
extra-item.rs
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extra-item.stderr
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fallback_inference.rs
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fallback_inference.stderr
…
fallback.rs
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feature-self-return-type.rs
Stabilize impl_trait_projections
2023-09-08 03:45:36 +00:00
feature-self-return-type.stderr
Stabilize impl_trait_projections
2023-09-08 03:45:36 +00:00
fresh-lifetime-from-bare-trait-obj-114664.rs
Record binder for bare trait object in LifetimeCollectVisitor
2023-08-11 03:15:41 +00:00
fresh-lifetime-from-bare-trait-obj-114664.stderr
Add a note to duplicate diagnostics
2023-10-05 01:04:41 +00:00
generic-with-implicit-hrtb-without-dyn.edition2015.stderr
…
generic-with-implicit-hrtb-without-dyn.edition2021.stderr
…
generic-with-implicit-hrtb-without-dyn.rs
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hidden-lifetimes.rs
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hidden-lifetimes.stderr
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hidden-type-is-opaque-2.rs
Fix invalid suggestion for mismatched types in closure arguments
2023-07-30 17:15:55 +02:00
hidden-type-is-opaque-2.stderr
Fix invalid suggestion for mismatched types in closure arguments
2023-07-30 17:15:55 +02:00
hidden-type-is-opaque.rs
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impl_fn_associativity.rs
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impl_trait_projections.rs
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impl_trait_projections.stderr
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impl-fn-hrtb-bounds-2.rs
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impl-fn-hrtb-bounds-2.stderr
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impl-fn-hrtb-bounds.rs
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impl-fn-hrtb-bounds.stderr
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impl-fn-parsing-ambiguities.rs
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impl-fn-parsing-ambiguities.stderr
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impl-fn-predefined-lifetimes.rs
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impl-fn-predefined-lifetimes.stderr
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impl-generic-mismatch-ab.rs
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impl-generic-mismatch-ab.stderr
…
impl-generic-mismatch.rs
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impl-generic-mismatch.stderr
…
impl-subtyper2.rs
move subtyper change reveal_all
2023-10-05 18:56:30 +03:00
impl-subtyper.rs
move subtyper change reveal_all
2023-10-05 18:56:30 +03:00
impl-trait-in-macro.rs
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impl-trait-in-macro.stderr
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impl-trait-plus-priority.rs
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impl-trait-plus-priority.stderr
…
in-assoc-type-unconstrained.rs
Use the opaque_types_defined_by query to cheaply check for whether a hidden type may be registered for an opaque type
2023-05-12 10:26:50 +00:00
in-assoc-type-unconstrained.stderr
Point to argument/return type instead of the whole function header
2023-06-22 15:00:12 +00:00
in-assoc-type.rs
Require TAITs to be mentioned in the signatures of functions that register hidden types for them
2023-07-07 13:13:18 +00:00
in-assoc-type.stderr
Require TAITs to be mentioned in the signatures of functions that register hidden types for them
2023-07-07 13:13:18 +00:00
issue-35668.rs
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issue-35668.stderr
…
issue-36792.rs
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issue-46959.rs
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issue-49556.rs
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issue-49579.rs
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issue-49685.rs
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issue-51185.rs
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issue-54966.rs
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issue-54966.stderr
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issue-55872-1.rs
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issue-55872-1.stderr
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issue-55872-2.rs
Bless tests.
2023-09-23 13:47:30 +00:00
issue-55872-2.stderr
Add a note to duplicate diagnostics
2023-10-05 01:04:41 +00:00
issue-55872-3.rs
Remove compare mode
2023-07-03 21:40:04 +00:00
issue-55872-3.stderr
adjust how closure/generator types and rvalues are printed
2023-09-21 22:20:58 +02:00
issue-55872.rs
…
issue-55872.stderr
…
issue-56445.rs
…
issue-68532.rs
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issue-72911.rs
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issue-72911.stderr
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issue-86465.rs
Revert "Auto merge of #102417 - oli-obk:opaque_lifetimes2, r=jackh726"
2023-08-30 11:06:46 +00:00
issue-86465.stderr
Revert "Auto merge of #102417 - oli-obk:opaque_lifetimes2, r=jackh726"
2023-08-30 11:06:46 +00:00
issue-87450.rs
…
issue-87450.stderr
…
issue-99073-2.rs
check for non-defining uses of RPIT
2023-08-14 15:25:20 +02:00
issue-99073-2.stderr
check for non-defining uses of RPIT
2023-08-14 15:25:20 +02:00
issue-99073.rs
check for non-defining uses of RPIT
2023-08-14 15:25:20 +02:00
issue-99073.stderr
adjust how closure/generator types and rvalues are printed
2023-09-21 22:20:58 +02:00
issue-99642-2.rs
…
issue-99642.rs
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issue-99914.rs
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issue-99914.stderr
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issue-100075-2.rs
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issue-100075-2.stderr
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issue-100075.rs
…
issue-100075.stderr
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issue-100187.rs
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issue-102605.rs
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issue-102605.stderr
Check entry type as part of item type checking.
2023-07-15 22:02:16 +00:00
issue-103181-1.current.stderr
Use error term if missing associated item in new solver
2023-05-16 16:02:17 +00:00
issue-103181-1.next.stderr
Use error term if missing associated item in new solver
2023-05-16 16:02:17 +00:00
issue-103181-1.rs
Use error term if missing associated item in new solver
2023-05-16 16:02:17 +00:00
issue-103181-2.rs
More precisely detect cycle errors from type_of on opaque
2023-08-27 22:03:16 +00:00
issue-103181-2.stderr
More precisely detect cycle errors from type_of on opaque
2023-08-27 22:03:16 +00:00
issue-103599.rs
…
issue-103599.stderr
…
issue-108591.rs
Revert "Auto merge of #102417 - oli-obk:opaque_lifetimes2, r=jackh726"
2023-08-30 11:06:46 +00:00
issue-108592.rs
Revert "Auto merge of #102417 - oli-obk:opaque_lifetimes2, r=jackh726"
2023-08-30 11:06:46 +00:00
lifetime-ambiguity-regression.rs
Paper over an accidental regression
2023-09-14 15:16:48 +00:00
lifetimes2.rs
…
lifetimes.rs
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
mapping-duplicated-lifetimes-issue-114597.rs
add'l test
2023-08-08 09:39:59 +00:00
method-suggestion-no-duplication.rs
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method-suggestion-no-duplication.stderr
…
multiple-defining-usages-in-body.rs
Check that RPITs are compatible with the opaques inferred during HIR typeck too
2023-05-31 17:45:45 +00:00
multiple-defining-usages-in-body.stderr
Check that RPITs are compatible with the opaques inferred during HIR typeck too
2023-05-31 17:45:45 +00:00
must_outlive_least_region_or_bound.rs
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must_outlive_least_region_or_bound.stderr
remove trailing dots
2023-10-08 10:06:17 +00:00
needs_least_region_or_bound.rs
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negative-reasoning.rs
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negative-reasoning.stderr
Make things work by using the new solver
2023-10-23 23:35:27 +00:00
nested_impl_trait.rs
Tweak wording of E0562
2023-10-04 19:51:43 +00:00
nested_impl_trait.stderr
Tweak wording of E0562
2023-10-04 19:51:43 +00:00
nested-return-type2-tait2.rs
Remove DefiningAnchor::Bubble from opaque wf check
2023-10-16 15:50:31 +00:00
nested-return-type2-tait2.stderr
Remove DefiningAnchor::Bubble from opaque wf check
2023-10-16 15:50:31 +00:00
nested-return-type2-tait3.rs
Remove DefiningAnchor::Bubble from opaque wf check
2023-10-16 15:50:31 +00:00
nested-return-type2-tait3.stderr
Remove DefiningAnchor::Bubble from opaque wf check
2023-10-16 15:50:31 +00:00
nested-return-type2-tait.rs
…
nested-return-type2-tait.stderr
Add AliasKind::Weak for type aliases.
2023-06-16 19:39:48 +00:00
nested-return-type2.rs
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nested-return-type3-tait2.rs
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nested-return-type3-tait2.stderr
Add AliasKind::Weak for type aliases.
2023-06-16 19:39:48 +00:00
nested-return-type3-tait3.rs
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nested-return-type3-tait3.stderr
…
nested-return-type3-tait.rs
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nested-return-type3-tait.stderr
Add AliasKind::Weak for type aliases.
2023-06-16 19:39:48 +00:00
nested-return-type3.rs
…
nested-return-type4.rs
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nested-return-type4.stderr
adjust how closure/generator types and rvalues are printed
2023-09-21 22:20:58 +02:00
nested-return-type.rs
…
nested-rpit-hrtb-2.rs
don't ICE on higher ranked hidden types
2023-08-04 15:11:09 +00:00
nested-rpit-hrtb-2.stderr
don't ICE on higher ranked hidden types
2023-08-04 15:11:09 +00:00
nested-rpit-hrtb.rs
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nested-rpit-hrtb.stderr
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nested-rpit-with-anonymous-lifetimes.rs
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nesting.rs
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no-method-suggested-traits.rs
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no-method-suggested-traits.stderr
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no-trait.rs
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no-trait.stderr
…
normalize-opaque-with-bound-vars.rs
More tests
2023-06-27 21:36:15 +00:00
normalize-tait-in-const.rs
update tests, adding known-bug
2023-07-27 15:51:02 +00:00
normalize-tait-in-const.stderr
bless the known-bug tests
2023-09-20 03:02:14 +00:00
object-unsafe-trait-in-return-position-dyn-trait.rs
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object-unsafe-trait-in-return-position-dyn-trait.stderr
On object safety error, mention new enum as alternative
2023-10-29 23:55:46 +00:00
object-unsafe-trait-in-return-position-impl-trait.rs
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object-unsafe-trait-in-return-position-impl-trait.stderr
…
opaque-cast-field-access-in-future.rs
Only prevent field projections into opaque types, not types containing opaque types
2023-09-25 17:41:08 +00:00
opaque-cast-field-access-in-future.stderr
Reorder fullfillment errors to keep more interesting ones first
2023-10-04 02:04:14 +00:00
point-to-type-err-cause-on-impl-trait-return.rs
Remove return type sized check hack from hir typeck
2023-05-18 01:53:01 +00:00
point-to-type-err-cause-on-impl-trait-return.stderr
Remove return type sized check hack from hir typeck
2023-05-18 01:53:01 +00:00
printing-binder.rs
…
printing-binder.stderr
…
private_unused.rs
…
projection-mismatch-in-impl-where-clause.rs
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projection-mismatch-in-impl-where-clause.stderr
…
projection.rs
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question_mark.rs
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recursive-auto-trait.rs
deal with opaque types without cycling
2023-07-06 11:37:21 +02:00
recursive-coroutine.current.stderr
update tests
2023-11-09 11:32:51 +01:00
recursive-coroutine.next.stderr
update tests
2023-11-09 11:32:51 +01:00
recursive-coroutine.rs
update tests
2023-11-09 11:32:51 +01:00
recursive-impl-trait-type-direct.rs
…
recursive-impl-trait-type-indirect.rs
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
recursive-impl-trait-type-indirect.stderr
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
recursive-impl-trait-type-through-non-recursive.rs
…
recursive-impl-trait-type-through-non-recursive.stderr
…
recursive-type-alias-impl-trait-declaration-too-subtle-2.rs
Add AliasKind::Weak for type aliases.
2023-06-16 19:39:48 +00:00
recursive-type-alias-impl-trait-declaration-too-subtle.rs
…
recursive-type-alias-impl-trait-declaration-too-subtle.stderr
Handle weak type aliases by immediately resolving them to their aliased type
2023-06-22 15:51:19 +00:00
recursive-type-alias-impl-trait-declaration.rs
Add AliasKind::Weak for type aliases.
2023-06-16 19:39:48 +00:00
recursive-type-alias-impl-trait-declaration.stderr
Add AliasKind::Weak for type aliases.
2023-06-16 19:39:48 +00:00
region-escape-via-bound-contravariant-closure.rs
…
region-escape-via-bound-contravariant.rs
…
region-escape-via-bound.rs
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region-escape-via-bound.stderr
…
return-position-impl-trait-minimal.rs
…
reveal-during-codegen.rs
Normalize opaques during codegen in new solver
2023-07-07 16:02:25 +00:00
rpit-assoc-pair-with-lifetime.rs
…
rpit-not-sized.rs
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rpit-not-sized.stderr
…
static-lifetime-return-position-impl-trait.rs
Stabilize AFIT and RPITIT
2023-10-13 21:01:36 +00:00
static-return-lifetime-infered.rs
…
static-return-lifetime-infered.stderr
adjust how closure/generator types and rvalues are printed
2023-09-21 22:20:58 +02:00
suggest-calling-rpit-closure.rs
…
suggest-calling-rpit-closure.stderr
…
trait_resolution.rs
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trait_type.rs
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trait_type.stderr
…
two_tait_defining_each_other2.current.stderr
update tests
2023-11-09 11:32:51 +01:00
two_tait_defining_each_other2.next.stderr
update tests
2023-11-09 11:32:51 +01:00
two_tait_defining_each_other2.rs
update tests
2023-11-09 11:32:51 +01:00
two_tait_defining_each_other3.current.stderr
update tests
2023-11-09 11:32:51 +01:00
two_tait_defining_each_other3.rs
update tests
2023-11-09 11:32:51 +01:00
two_tait_defining_each_other.current.stderr
update tests
2023-11-09 11:32:51 +01:00
two_tait_defining_each_other.rs
update tests
2023-11-09 11:32:51 +01:00
type_parameters_captured.rs
…
type_parameters_captured.stderr
remove trailing dots
2023-10-08 10:06:17 +00:00
type-alias-generic-param.rs
…
type-alias-impl-trait-in-fn-body.rs
…
type-arg-mismatch-due-to-impl-trait.rs
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type-arg-mismatch-due-to-impl-trait.stderr
…
unactionable_diagnostic.fixed
remove trailing dots
2023-10-08 10:06:17 +00:00
unactionable_diagnostic.rs
remove trailing dots
2023-10-08 10:06:17 +00:00
unactionable_diagnostic.stderr
remove trailing dots
2023-10-08 10:06:17 +00:00
universal_hrtb_anon.rs
…
universal_hrtb_named.rs
…
universal_in_adt_in_parameters.rs
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universal_in_impl_trait_in_parameters.rs
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universal_in_trait_defn_parameters.rs
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universal_multiple_bounds.rs
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universal_wrong_bounds.rs
…
universal_wrong_bounds.stderr
…
universal_wrong_hrtb.rs
migrate lifetime too
2023-06-26 19:14:49 +00:00
universal_wrong_hrtb.stderr
migrate lifetime too
2023-06-26 19:14:49 +00:00
universal-mismatched-type.rs
…
universal-mismatched-type.stderr
Tweak wording of type errors involving type params
2023-10-18 23:53:18 +00:00
universal-two-impl-traits.rs
…
universal-two-impl-traits.stderr
…
unsafety-checking-cycle.rs
…
variance.rs
Test variances of opaque captures
2023-08-28 01:05:34 +00:00
variance.stderr
Test variances of opaque captures
2023-08-28 01:05:34 +00:00
wf-eval-order.rs
vars are ?
2023-04-25 19:53:09 +00:00
where-allowed-2.rs
…
where-allowed-2.stderr
Reorder fullfillment errors to keep more interesting ones first
2023-10-04 02:04:14 +00:00
where-allowed.rs
Stabilize AFIT and RPITIT
2023-10-13 21:01:36 +00:00
where-allowed.stderr
Stabilize AFIT and RPITIT
2023-10-13 21:01:36 +00:00
xcrate_simple.rs
…
xcrate.rs
…