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Rollup of 6 pull requests
Successful merges:
- #130718 (Cleanup some known-bug issues)
- #130730 (Reorganize Test Headers)
- #130826 (Compiler: Rename "object safe" to "dyn compatible")
- #130915 (fix typo in triagebot.toml)
- #130926 (Update cc to 1.1.22 in library/)
- #130932 (etc: Add sample rust-analyzer configs for eglot & helix)
r? `@ghost`
`@rustbot` modify labels: rollup
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r=compiler-errors
Compiler: Rename "object safe" to "dyn compatible"
Completed T-lang FCP: https://github.com/rust-lang/lang-team/issues/286#issuecomment-2338905118.
Tracking issue: https://github.com/rust-lang/rust/issues/130852
Excludes `compiler/rustc_codegen_cranelift` (to be filed separately).
Includes Stable MIR.
Regarding https://github.com/rust-lang/rust/labels/relnotes, I guess I will manually open a https://github.com/rust-lang/rust/labels/relnotes-tracking-issue since this change affects everything (compiler, library, tools, docs, books, everyday language).
r? ghost
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Like #130865 did for the standard library, we can use `&raw` in the
compiler now that stage0 supports it. Also like the other issue, I did
not make any doc or test changes at this time.
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enable -Zrandomize-layout in debug CI builds
This builds rustc/libs/tools with `-Zrandomize-layout` on *-debug CI runners.
Only a handful of tests and asserts break with that enabled, which is promising. One test was fixable, the rest is dealt with by disabling them through new cargo features or compiletest directives.
The config.toml flag `rust.randomize-layout` defaults to false, so it has to be explicitly enabled for now.
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chore: Fix typos in 'compiler' (batch 2)
Batch 2/3: Fixes typos in `compiler`
(See [issue](https://github.com/rust-lang/rust/issues/129874) tracking all PRs with typos fixes)
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This reverts commit acb4e8b6251f1d8da36f08e7a70fa23fc581839e, reversing
changes made to 100fde5246bf56f22fb5cc85374dd841296fce0e.
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Stop using `ty::GenericPredicates` for non-predicates_of queries
`GenericPredicates` is a struct of several parts: A list of of an item's own predicates, and a parent def id (and some effects related stuff, but ignore that since it's kinda irrelevant). When instantiating these generic predicates, it calls `predicates_of` on the parent and instantiates its predicates, and appends the item's own instantiated predicates too:
https://github.com/rust-lang/rust/blob/acb4e8b6251f1d8da36f08e7a70fa23fc581839e/compiler/rustc_middle/src/ty/generics.rs#L407-L413
Notice how this should result in a recursive set of calls to `predicates_of`... However, `GenericPredicates` is *also* misused by a bunch of *other* queries as a convenient way of passing around a list of predicates. For these queries, we don't ever set the parent def id of the `GenericPredicates`, but if we did, then this would be very easy to mistakenly call `predicates_of` instead of some other intended parent query.
Given that footgun, and the fact that we don't ever even *use* the parent def id in the `GenericPredicates` returned from queries like `explicit_super_predicates_of`, It really has no benefit over just returning `&'tcx [(Clause<'tcx>, Span)]`.
This PR additionally opts to wrap the results of `EarlyBinder`, as we've tended to use that in the return type of these kinds of queries to properly convey that the user has params to deal with, and it also gives a convenient way of iterating over a slice of things after instantiating.
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Get rid of `predicates_defined_on`
This is the uncontroversial part of #129532. This simply inlines the `predicates_defined_on` into into `predicates_of`. Nothing should change here logically.
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closures
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Cache supertrait outlives of impl header for soundness check
This caches the results of computing the transitive supertraits of an impl and filtering it to its outlives obligations. This is purely an optimization to improve https://github.com/rust-lang/rust/pull/124336.
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The previous commit updated `rustfmt.toml` appropriately. This commit is
the outcome of running `x fmt --all` with the new formatting options.
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r=fmease
Add cross-crate precise capturing support to rustdoc
Follow-up to #127632. Fixes #127228.
r? `@fmease`
Tracking:
* https://github.com/rust-lang/rust/issues/123432
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Implement new effects desugaring
cc `@rust-lang/project-const-traits.` Will write down notes once I have finished.
* [x] See if we want `T: Tr` to desugar into `T: Tr, T::Effects: Compat<true>`
* [x] Fix ICEs on `type Assoc: ~const Tr` and `type Assoc<T: ~const Tr>`
* [ ] add types and traits to minicore test
* [ ] update rustc-dev-guide
Fixes #119717
Fixes #123664
Fixes #124857
Fixes #126148
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Trying to address an incremental compilation issues
This pull request contains two independent changes, one makes it so when `try_force_from_dep_node` fails to recover a query - it marks the node as "red" instead of "green" and the second one makes Debug impl for `DepNode` less panicky if it encounters something from the previous compilation that doesn't map to anything in the current one.
I'm not 100% confident that this is the correct approach, but so far I managed to find a bunch of comments suggesting that some things are allowed to fail in a certain way and changes I made are allowing for those things to fail this way and it fixes all the small reproducers I managed to find.
Compilation panic this pull request avoids is caused by an automatically generated code on an associated type and it is not happening if something else marks it as outdated first (or close like that, but scenario is quite obscure).
Fixes https://github.com/rust-lang/rust/issues/107226
Fixes https://github.com/rust-lang/rust/issues/125367
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local_def_path_hash_to_def_id is used by Debug impl for DepNode and it
looks for DefPathHash inside the current compilation. During incremental
compilation we are going through nodes that belong to a previous
compilation and might not be present and a simple attempt to print such
node with tracing::debug (try_mark_parent_green does it for example)
results in a otherwise avoidable panic
Panic was added in https://github.com/rust-lang/rust/pull/82183,
specifically in 2b60338ee9, with a comment "We only use this mapping for
cases where we know that it must succeed.", but I'm not sure if this
property holds when we traverse nodes from the old compilation in order
to figure out if they are valid or not
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Fixes #126573
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the specialized impl
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This reverts commit eda4a35f365535af72118118a3597edf5a13c12d, reversing
changes made to eb6b35b5bcb3c2a594cb29cd478aeb2893f49d30.
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Add `size_of` and `size_of_val` and `align_of` and `align_of_val` to the prelude
(Note: need to update the PR to add `align_of` and `align_of_val`, and remove the second commit with the myriad changes to appease the lint.)
Many, many projects use `size_of` to get the size of a type. However,
it's also often equally easy to hardcode a size (e.g. `8` instead of
`size_of::<u64>()`). Minimizing friction in the use of `size_of` helps
ensure that people use it and make code more self-documenting.
The name `size_of` is unambiguous: the name alone, without any prefix or
path, is self-explanatory and unmistakeable for any other functionality.
Adding it to the prelude cannot produce any name conflicts, as any local
definition will silently shadow the one from the prelude. Thus, we don't
need to wait for a new edition prelude to add it.
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We are gonna need it to uplift EarlyBinder
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