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Emit error in `collecting_trait_impl_trait_tys` on mismatched signatures
Previously, a `delay_span_bug` was isssued, failing normalization. This create a `TyKind::Error` in the signature, which caused `compare_predicate_entailment` to swallow its signature mismatch error, causing ICEs because no error was emitted.
fixes #104183
r? ``@compiler-errors``
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Unhide unknown spans
r? ```@estebank```
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Add the `#[derive_const]` attribute
Closes #102371. This is a minimal patchset for the attribute to work. There are no restrictions on what traits this attribute applies to.
r? `````@oli-obk`````
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Resolve lifetimes independently for each item-like.
Now that the heavy-lifting is done on the AST and during lowering, we do not need to perform HIR lifetime resolution on a full item at once. Instead, we can treat each item-like independently, and look at `generics_of` the parent exceptionally for associated items.
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Rollup of 8 pull requests
Successful merges:
- #95292 (Allow specialized const trait impls.)
- #100386 (Make `Sized` coinductive, again)
- #102215 (Implement the `+whole-archive` modifier for `wasm-ld`)
- #103468 (Fix unused lint and parser caring about spaces to won't produce invalid code)
- #103531 (Suggest calling the instance method of the same name when method not found)
- #103960 (piece of diagnostic migrate)
- #104051 (update Miri)
- #104129 (rustdoc: use javascript to layout notable traits popups)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Rollup of 9 pull requests
Successful merges:
- #100633 (Consider `#[must_use]` annotation on `async fn` as also affecting the `Future::Output`)
- #103445 (`#[test]`: Point at return type if `Termination` bound is unsatisfied)
- #103924 (Fix broken link in description of error code E0706)
- #104146 (Retry binding TCP Socket in remote-test-server)
- #104169 (Migrate `:target` rules to use CSS variables)
- #104202 (Fix ICE #103748)
- #104216 (Don't ICE on operator trait methods with generic methods)
- #104217 (Display help message when fluent arg was referenced incorrectly)
- #104245 (Reduce default configuration's dependency upon static libstdcpp library (#103606))
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Suggest calling the instance method of the same name when method not found
Fixes #103474
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r=estebank
Fix unused lint and parser caring about spaces to won't produce invalid code
Fixes #103435
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Make `Sized` coinductive, again
A revival of #83647
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What exactly makes co-induction sound? Better question: are there any unsoundness risks from this? `Sized` can't be implemented by custom `impl` blocks, nor can it be conditionally implemented based on anything other than child fields being `Sized`, right?
r? `@nikomatsakis` for whenever he gets back from vacation
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Allow specialized const trait impls.
Fixes #95186.
Fixes #95187.
I've done my best to create a comprehensive test suite for the interaction between `min_specialization` and `const_trait_impls`. I wouldn't be surprised if there are interesting cases I haven't tested, please let me know.
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Don't ICE on operator trait methods with generic methods
Emit a fatal error instead.
fixes #104213
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Fix ICE #103748
Fixes #103748
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`#[test]`: Point at return type if `Termination` bound is unsatisfied
Together with #103142 (already merged) this fully fixes #50291.
I don't consider my current solution of changing a few spans “here and there” very clean since the
failed obligation is a `FunctionArgumentObligation` and we point at a type instead of a function argument.
If you agree with me on this point, I can offer to keep the spans of the existing nodes and instead inject
`let _: AssertRetTyIsTermination<$ret_ty>;` (type to be defined in `libtest`) similar to `AssertParamIsEq` etc.
used by some built-in derive-macros.
I haven't tried that approach yet though and cannot promise that it would actually work out or
be “cleaner” for that matter.
````@rustbot```` label A-libtest A-diagnostics
r? ````@estebank````
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Consider `#[must_use]` annotation on `async fn` as also affecting the `Future::Output`
No longer lint against `#[must_use] async fn foo()`.
When encountering a statement that awaits on a `Future`, check if the
`Future`'s parent item is annotated with `#[must_use]` and emit a lint
if so. This effectively makes `must_use` an annotation on the
`Future::Output` instead of only the `Future` itself.
Fix #78149.
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It will still be used in json, as seen by the ui test changes
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In some cases we can avoid arithmetic before checking whether a niche
represents an untagged variant.
This is relevant to #101872
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Recover wrong-cased keywords that start items
(_this pr was inspired by [this tweet](https://twitter.com/Azumanga/status/1552982326409367561)_)
r? `@estebank`
We've talked a bit about this recovery, but I just wanted to make sure that this is the right approach :)
For now I've only added the case insensitive recovery to `use`s, since most other items like `impl` blocks, modules, functions can start with multiple keywords which complicates the matter.
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`Future::Output`
No longer lint against `#[must_use] async fn foo()`.
When encountering a statement that awaits on a `Future`, check if the
`Future`'s parent item is annotated with `#[must_use]` and emit a lint
if so. This effectively makes `must_use` an annotation on the
`Future::Output` instead of only the `Future` itself.
Fix #78149.
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Do not point at whole statement, only at the expression (skip pointing at `;`)
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in base impl.
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Fixes #95186.
Fixes #95187.
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Don't ICE when encountering `ConstKind::Error` in `RequiredConstsVisitor`
Fixes #104209
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r=oli-obk
Tighten the 'introduce new binding' suggestion
Fixes #104086
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