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Rename AsyncCoroutineKind to CoroutineSource
pulled out of https://github.com/rust-lang/rust/pull/116447
Also refactors the printing infra of `CoroutineSource` to be ready for easily extending it with a `Gen` variant for `gen` blocks
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On unresolved imports, suggest a disambiguated path if necessary to avoid collision with local items
Fixes #116970.
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weiznich:improve_diagnostic_on_unimplemented_warnings, r=compiler-errors
Improve the warning messages for the `#[diagnostic::on_unimplemented]`
This commit improves warnings emitted for malformed on unimplemented attributes by:
* Improving the span of the warnings
* Adding a label message to them
* Separating the messages for missing and unexpected options
* Adding a help message that says which options are supported
r? `@compiler-errors`
I'm happy to work on further improvements, so feel free to make suggestions.
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r=compiler-errors
Do not suggest 'Trait<Assoc=arg>' when in trait impl
Fixes #116464
We now skip the suggestion if we're in an impl of the trait.
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Return multiple object-safety violation errors and code improvements to the object-safety check
See individual commits for more information. Split off of #114260, since it turned out that the main intent of that PR was wrong.
r? oli-obk
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This keeps track of usage of internal features, and changes the message
to instead tell them that using internal features is not supported.
See MCP 620.
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This is particularly helpful for the ui tests, but also could be helpful
for Stable MIR users who just want all the locals without needing to
concatenate responses
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HIR typeck tries to figure out which casts are trivial by doing them as
coercions and seeing whether this works. Since HIR typeck is oblivious
of lifetimes, this doesn't work for pointer casts that only change the
lifetime of the pointee, which are, as borrowck will tell you, not
trivial.
This change makes it so that raw pointer casts are never considered
trivial.
This also incidentally fixes the "trivial cast" lint false positive on
the same code. Unfortunately, "trivial cast" lints are now never emitted
on raw pointer casts, even if they truly are trivial. This could be
fixed by also doing the lint in borrowck for raw pointers specifically.
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Rollup of 7 pull requests
Successful merges:
- #117111 (Remove support for alias `-Z instrument-coverage`)
- #117141 (Require target features to match exactly during inlining)
- #117152 (Fix unwrap suggestion for async fn)
- #117154 (implement C ABI lowering for CSKY)
- #117159 (Work around the fact that `check_mod_type_wf` may spuriously return `ErrorGuaranteed`)
- #117163 (compiletest: Display compilation errors in mir-opt tests)
- #117173 (Make `Iterator` a lang item)
r? `@ghost`
`@rustbot` modify labels: rollup
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When encountering code like `f::<f::<f::<f::<f::<f::<f::<f::<...` with
unmatched closing angle brackets, add a linear check that avoids the
exponential behavior of the parse recovery mechanism.
Fix #117080.
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Work around the fact that `check_mod_type_wf` may spuriously return `ErrorGuaranteed`
Even if that error is only emitted by `check_mod_item_types`.
fixes https://github.com/rust-lang/rust/issues/117153
A cleaner refactoring would merge/chain these queries in ways that ensure we only actually get an `ErrorGuaranteed` if there was an error emitted.
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Fix unwrap suggestion for async fn
Use `body_fn_sig` to get the expected return type of the function instead of `ret_coercion` in `FnCtxt`. This avoids accessing the `ret_coercion` when it's already mutably borrowed (e.g. when checking `return` expressions).
Fixes #117144
r? `@chenyukang`
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Require target features to match exactly during inlining
In general it is not correct to inline a callee with a target features
that are subset of the callee. Require target features to match exactly
during inlining.
The exact match could be potentially relaxed, but this would require
identifying specific feature that are allowed to differ, those that need
to match, and those that can be present in caller but not in callee.
This resolves MIR part of #116573. For other concerns with respect to
the previous implementation also see areInlineCompatible in LLVM.
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Remove support for alias `-Z instrument-coverage`
This flag was stabilized in rustc 1.60.0 (2022-04-07) as `-C instrument-coverage`, but the old unstable flag was kept around (with a warning) as an alias to ease migration.
It should now be reasonable to remove the somewhat tricky code that implemented that alias.
Fixes #116980.
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Fix typo in test comment
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Update THIR unused_unsafe lint
Updates THIR unsafeck behaviour to match the changes from #93678
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Merge `impl_wf_inference` (`check_mod_impl_wf`) check into coherence checking
Problem here is that we call `collect_impl_trait_in_trait_types` when checking `check_mod_impl_wf` which is performed before coherence. Due to the `tcx.sess.track_errors`, since we end up reporting an error, we never actually proceed to coherence checking, where we would be emitting a more useful impl overlap error.
This change means that we may report more errors in some cases, but can at least proceed far enough to leave a useful message for overlapping traits with RPITITs in them.
Fixes #116982
r? types
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Add test for 113326
Closes #113326
Bisecting points to #113636 as the fix
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Remove fold code and add `Const::internal()` to StableMIR
We are not planning to support user generated constant in the foreseeable future, so we are cleaning up the fold logic and user created type for now. Users should use `Instance::resolve` in order to trigger monomorphization.
The Instance::resolve was however incomplete, since we weren't handling internalizing constants yet. Thus, I added that.
I decided to keep the `Const` fields private in case we decide to translate them lazily.
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`ErrorGuaranteed`, even if that error is only emitted by `check_modwitem_types`
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Signed-off-by: cui fliter <imcusg@gmail.com>
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Updates THIR behavior to match the changes from #93678
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Refactor type visitor walking
r? `@petrochenkov`
pulling out the uncontroversial parts of https://github.com/rust-lang/rust/pull/113671
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because that would be illegal syntax
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Fix inline const pattern unsafety checking in THIR
Fix THIR unsafety checking of inline constants.
- Steal THIR in THIR unsafety checking (if enabled) instead of MIR lowering.
- Represent inline constants in THIR patterns.
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We are not planning to support user generated constant in the
foreseeable future, so we are removing the Fold logic for now in
favor of the Instance::resolve logic.
The Instance::resolve was however incomplete, since we weren't handling
internalizing constants yet. Thus, I added that.
I decided to keep the Const fields private in case we decide to
translate them lazily.
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Generate aggregate constants in DataflowConstProp.
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In general it is not correct to inline a callee with a target features
that are subset of the callee. Require target features to match exactly
during inlining.
The exact match could be potentially relaxed, but this would require
identifying specific feature that are allowed to differ, those that need
to match, and those that can be present in caller but not in callee.
This resolves MIR part of #116573. For other concerns with respect to
the previous implementation also see areInlineCompatible in LLVM.
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