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generics' attributes
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Avoid some unnecessary query invocations.
Specifically this inlines `const_eval_poly` and avoids computing the generic params, the param env, normalizing the param env and erasing lifetimes on everything.
should fix the perf regression from https://github.com/rust-lang/rust/pull/121087
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Split from the main renaming commit to make git generate a proper diff for ease of reviewing.
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Several (doc) comments were super outdated or didn't provide enough context.
Some doc comments shoved everything in a single paragraph without respecting
the fact that the first paragraph should be a single sentence because rustdoc
treats these as item descriptions / synopses on module pages.
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This includes updating astconv-related items and a few local variables.
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Clean up AstConv
Split off from #120926 to make it only contain the renaming & (doc) comment updates.
Any changes other than that which have accumulated over time are now part of this PR.
Let's be disciplined ;) Inspired by https://github.com/rust-lang/rust/pull/120926#issuecomment-1997984483.
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* Remove `hir_trait_to_predicates`
* Unused since #113671
* Inline `create_args_for_ast_trait_ref`
* Only had a single call site
* Having it as a separate method didn't gain us anything
* Use an if-let guard somewhere to avoid unwrapping
* Avoid explicit trait object lifetimes
* More legible, stylistic-only (the updated code is 100% semantically identical)
* Use explicitly elided lifetimes in impl headers, they get elaborated to distinct lifetimes
* Make use of [object lifetime defaulting](https://doc.rust-lang.org/reference/lifetime-elision.html#default-trait-object-lifetimes) for a trait object type inside of a reference type somewhere
* Use preexisting dedicated method `ItemCtxt::to_ty` over `<dyn AstConv<'_>>::ast_ty_to_ty`
* Use preexisting dedicated method `AstConv::astconv` over explicit coercions
* Simplify the function signature of `create_args_for_ast_path` and of `check_generic_arg_count`
* In both cases redundant information was passed rendering the call sites verbose and confusing
* No perf impact (tested in [#120926](https://github.com/rust-lang/rust/pull/120926))
* Move diagnostic method `report_ambiguous_associated_type` from `astconv` to `astconv::errors`
* The submodule `errors` exists specifically for that purpose
* Use it to keep the main module clean & short
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Revert "Auto merge of #122140 - oli-obk:track_errors13, r=davidtwco"
This reverts commit 65cd843ae06ad00123c131a431ed5304e4cd577a, reversing changes made to d255c6a57c393db6221b1ff700daea478436f1cd.
reverts https://github.com/rust-lang/rust/pull/122140
It was a large regression in wall time due to trashing CPU caches
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This reverts commit 65cd843ae06ad00123c131a431ed5304e4cd577a, reversing
changes made to d255c6a57c393db6221b1ff700daea478436f1cd.
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This improves parallel rustc parallelism by avoiding the bottleneck after each individual `par_body_owners` (because it needs to wait for queries to finish, so if there is one long running one, a lot of cores will be idle while waiting for the single query).
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Use generic `NonZero` internally.
Tracking issue: https://github.com/rust-lang/rust/issues/120257
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These crates all needed specialization for `newtype_index!`, which will no
longer be necessary when the current nightly eventually becomes the next
bootstrap compiler.
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Invert diagnostic lints.
That is, change `diagnostic_outside_of_impl` and `untranslatable_diagnostic` from `allow` to `deny`, because more than half of the compiler has been converted to use translated diagnostics.
This commit removes more `deny` attributes than it adds `allow` attributes, which proves that this change is warranted.
r? ````@davidtwco````
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That is, change `diagnostic_outside_of_impl` and
`untranslatable_diagnostic` from `allow` to `deny`, because more than
half of the compiler has be converted to use translated diagnostics.
This commit removes more `deny` attributes than it adds `allow`
attributes, which proves that this change is warranted.
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Don't forget that the lifetime on hir types is `'tcx`
This PR just tracks the `'tcx` lifetime to wherever the original objects actually have that lifetime. This code is needed for https://github.com/rust-lang/rust/pull/107606 (now #120131) so that `ast_ty_to_ty` can invoke `lit_to_const` on an argument passed to it. Currently the argument is `&hir::Ty<'_>`, but after this PR it is `&'tcx hir::Ty<'tcx>`.
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instead.
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r=Nilstrieb
Suggest Upgrading Compiler for Gated Features
This PR addresses #117318
I have a few questions:
1. Do we want to specify the current version and release date of the compiler? I have added this in via environment variables, which I found in the code for the rustc cli where it handles the `--version` flag
a. How can I handle the changing message in the tests?
3. Do we want to only show this message when the compiler is old?
a. How can we determine when the compiler is old?
I'll wait until we figure out the message to bless the tests
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Varargs support for system ABI
This PR allows functions with the `system` ABI to be variadic (under the `extended_varargs_abi_support` feature tracked in #100189). On x86 windows, the `system` ABI is equivalent to `C` for variadic functions. On other platforms, `system` is already equivalent to `C`.
Fixes #110505
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corresponding `check_well_formed` diagnostics
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