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hir-analysis: make where-clause-on-main diagnostic translatable
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r=compiler-errors
Add git config command to `.git-blame-ignore-revs`
I always have to look at the git blame for that file to find the git command in the commit message (luckily that commit isn't in the file :D), putting it directly in the file makes it easier to find. Maybe we should mention the config in some other place as well.
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Use associated type bounds in some places in the compiler
Use associated type bounds for some nested `impl Trait<Assoc = impl Trait2>` cases. I'm generally keen to introduce new lang features that are more mature into the compiler, but maybe let's see what others think?
Side-note: I was surprised that the only use-cases of nested impl trait in the compiler are just iterator related?!
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rustdoc: Prevent duplicated imports
Fixes #108163.
Interestingly enough, the AST is providing us an import for each corresponding item, even though the `Res` links to multiple ones each time, which leaded to the same import being duplicated.
So in this PR, I decided to prevent the add of the import before the clean pass. However, I originally took a different path by instead filtering after cleaning the path. You can see it [here](https://github.com/rust-lang/rust/compare/master...GuillaumeGomez:rust:fix-duplicated-imports?expand=1). Only the second commit differs.
I think this approach is better though, but at least we can compare both if we want.
The first commit adds the check for duplicated items in the rustdoc-json output as asked in #108163.
cc `@aDotInTheVoid`
r? `@notriddle`
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Windows: Quote more batch file arguments
Make sure to always quote batch file arguments that contain command prompt special characters.
Additionally add `/d` command line parameter to disable any autorun scripts that may change the way variable expansion works. This makes it more consistent across systems and may help avoid surprises.
## Background Info
[`CreateProcess`](https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-createprocessw) with the `lpApplicationName` set can only be used to run `.exe` files and not script files such as `.bat`. However, for historical reasons, we do have special handling so that `.bat` files will be correctly run with `cmd.exe` as the application.
In Windows, command line arguments are passed as a single string (not an array). Applications can parse this string however they like but most follow the standard MSVC C/C++ convention. But `cmd.exe` uses different argument parsing rules to other Windows programs (because it emulates old DOS). This PR aims to help smooth over some of the differences.
r? libs
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Correctly handle aggregates in DataflowConstProp
The previous implementation from https://github.com/rust-lang/rust/pull/107411 flooded target of an aggregate assignment with `Bottom`, corresponding to the `deinit` that the interpreter does.
As a consequence, when assigning `target = Enum::Variant#i(...)` all the `(target as Variant#j)` were at `Bottom` while they should have been `Top`.
This PR replaces that flooding with `Top`.
Aside, it corrects a second bug where the wrong place would be used to assign to enum variant fields, resulting to nothing happening.
Fixes https://github.com/rust-lang/rust/issues/108166
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compiler-errors:associated-type-bounds-in-bad-position, r=cjgillot
Ban associated type bounds in bad positions
We should not try to lower associated type bounds into TAITs in positions where `impl Trait` is not allowed (except for in `where` clauses, like `where T: Trait<Assoc: Bound>`).
This is achieved by using the same `rustc_ast_lowering` machinery as impl-trait does to characterize positions as universal/existential/disallowed.
Fixes #106077
Split out the first commit into #108066, since it's not really related.
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r=compiler-errors,davidtwco,estebank,oli-obk
diagnostics: if AssocFn has self argument, describe as method
Discussed in https://rust-lang.zulipchat.com/#narrow/stream/147480-t-compiler.2Fwg-diagnostics/topic/.22associated.20function.22.20vs.20.22method.22/near/329265515
This commit also changes the tooltips on rustdoc intra-doc links targeting methods.
For anyone not sure why this is being done, see the Reference definitions of these terms in <https://doc.rust-lang.org/1.67.1/reference/items/associated-items.html#methods>
> Associated functions whose first parameter is named `self` are called methods and may be invoked using the [method call operator](https://doc.rust-lang.org/1.67.1/reference/expressions/method-call-expr.html), for example, `x.foo()`, as well as the usual function call notation.
In particular, while this means it's technically correct for rustc to refer to a method as an associated function (and there are a few cases where it'll still do so), rustc *must never* use the term "method" to refer to an associated function that does not have a `self` parameter.
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Rollup of 6 pull requests
Successful merges:
- #107736 ( Rename atomic 'as_mut_ptr' to 'as_ptr' to match Cell (ref #66893) )
- #108176 (Don't delay `ReError` bug during lexical region resolve)
- #108315 (Lint dead code in closures and generators)
- #108342 (apply query response: actually define opaque types)
- #108344 (Fix test filename for #105700)
- #108353 (resolve: Remove `ImportResolver`)
Failed merges:
- #107911 (Add check for invalid #[macro_export] arguments)
r? `@ghost`
`@rustbot` modify labels: rollup
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This makes the check for when associated type bounds more accurate
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I always have to look at the git blame for that file to find the git
command in the commit message (luckily that commit isn't in the file
:D), putting it directly in the file makes it easier to find. Maybe we
should mention the config in some other place as well.
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resolve: Remove `ImportResolver`
It's a trivial wrapper over `Resolver` that doesn't bring any benefits
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Fix test filename for #105700
The test is for #105700 rather than #21102
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apply query response: actually define opaque types
not sure whether this fixes any code considering that #107891 doesn't break anything, but this is currently wrong as the `eq` there should just always fail right now.
We can definitely hit this code if we remove the `replace_opaque_types_with_inference_vars` hack. Doing so without this PR causes a few tests to ICE, e.g.
https://github.com/rust-lang/rust/blob/bd4a96a12d0bf6dc12edf20a45df3a33052c9d7d/tests/ui/impl-trait/issue-99642.rs#L1-L7
r? `@oli-obk`
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Lint dead code in closures and generators
Fixes #108296
I think this might be a potentially breaking change, but restores the behaviour of pre-1.64.
`@rustbot` label +A-lint
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r=oli-obk
Don't delay `ReError` bug during lexical region resolve
Lexical region resolution returns a list of `RegionResolutionError` which don't necessarily correspond to diagnostics being emitted. The compiler may, validly, throw away these resolution errors and do something else. Therefore it's not valid to use `ReError` during lifetime resolution, since we may actually be on a totally fine compilation path.
For example, the `implied_bounds_entailment` lint runs region resolution twice, and only emits an error if it fails both times. If we delay a bug and create a `ReError` during this first run, then we will ICE.
Fixes #108170
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Side-note: this is conceptually equivalent to how we can't necessarily delay bugs or create `ty::Error` during trait solving/fulfillment, since the compiler is allowed to throw away these fulfillment errors to do other things. It's only once we actually emit an error (`report_region_errors` / `report_fulfillment_errors`)
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Rename atomic 'as_mut_ptr' to 'as_ptr' to match Cell (ref #66893)
Originally discussed in https://github.com/rust-lang/rust/issues/66893#issuecomment-1419198623
~~This uses #107706 as a base to avoid a merge conflict once that gets rolled up (so disregard const changes in the diff until it does)~~ all merged & rebased
`@rustbot` label +T-libs-api
r? m-ou-se
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Remove type-traversal trait aliases
#107924 moved the type traversal (folding and visiting) traits into the type library, but created trait aliases in `rustc_middle` to minimise both the API churn for trait consumers and the arising boilerplate. As mentioned in that PR, an alternative approach of defining subtraits with blanket implementations of the respective supertraits was also considered at that time but was ruled out as not adding much value.
Unfortunately, it has since emerged that rust-analyzer has difficulty with these trait aliases at present, resulting in a degraded contributor experience (see the recent [r-a has become useless](https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/r-a.20has.20become.20useless) topic on the #t-compiler/help Zulip stream).
This PR removes the trait aliases, and accordingly the underlying type library traits are now used directly; they are parameterised by `TyCtxt<'tcx>` rather than just the `'tcx` lifetime, and imports have been updated to reflect the fact that the trait aliases' explicitly named traits are no longer automatically brought into scope. These changes also roll-back the (no-longer required) workarounds to #107747 that were made in b409329c624b9e3bbd7d8e07697e2e9f861a45b6.
Since this PR is just a find+replace together with the changes necessary for compilation & tidy to pass, it's currently just one mega-commit. Let me know if you'd like it broken up.
r? `@oli-obk`
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It's a trivial wrapper over `Resolver` that doesn't bring any benefits
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Discussed in
https://rust-lang.zulipchat.com/#narrow/stream/147480-t-compiler.2Fwg-diagnostics/topic/.22associated.20function.22.20vs.20.22method.22/near/329265515
This commit also changes the tooltips on rustdoc intra-doc links
targeting methods.
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errors: generate typed identifiers in each crate
Instead of loading the Fluent resources for every crate in `rustc_error_messages`, each crate generates typed identifiers for its own diagnostics and creates a static which are pulled together in the `rustc_driver` crate and provided to the diagnostic emitter.
There are advantages and disadvantages to this change..
#### Advantages
- Changing a diagnostic now only recompiles the crate for that diagnostic and those crates that depend on it, rather than `rustc_error_messages` and all crates thereafter.
- This approach can be used to support first-party crates that want to supply translatable diagnostics (e.g. `rust-lang/thorin` in https://github.com/rust-lang/rust/pull/102612#discussion_r985372582, cc `@JhonnyBillM)`
- We can extend this a little so that tools built using rustc internals (like clippy or rustdoc) can add their own diagnostic resources (much more easily than those resources needing to be available to `rustc_error_messages`)
#### Disadvantages
- Crates can only refer to the diagnostic messages defined in the current crate (or those from dependencies), rather than all diagnostic messages.
- `rustc_driver` (or some other crate we create for this purpose) has to directly depend on *everything* that has error messages.
- It already transitively depended on all these crates.
#### Pending work
- [x] I don't know how to make `rustc_codegen_gcc`'s translated diagnostics work with this approach - because `rustc_driver` can't depend on that crate and so can't get its resources to provide to the diagnostic emission. I don't really know how the alternative codegen backends are actually wired up to the compiler at all.
- [x] Update `triagebot.toml` to track the moved FTL files.
r? `@compiler-errors`
cc #100717
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items fields
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Rollup of 8 pull requests
Successful merges:
- #108110 (Move some `InferCtxt` methods to `EvalCtxt` in new solver)
- #108168 (Fix ICE on type alias in recursion)
- #108230 (Convert a hard-warning about named static lifetimes into lint "unused_lifetimes")
- #108239 (Fix overlapping spans in removing extra arguments)
- #108246 (Add an InstCombine for redundant casts)
- #108264 (no-fail-fast support for tool testsuites)
- #108310 (rustdoc: Fix duplicated attributes for first reexport)
- #108318 (Remove unused FileDesc::get_cloexec)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Remove unused FileDesc::get_cloexec
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GuillaumeGomez:fix-reexports-duplicated-attributes, r=notriddle
rustdoc: Fix duplicated attributes for first reexport
Fixes #108281.
r? ``@notriddle``
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r=ozkanonur
no-fail-fast support for tool testsuites
~~This commit adds a change to pass "--no-fail-fast" flag to `cargo test` inside `tool::prepare_tool_cargo()` so there is no need to do it manually in each `Step` trait implementation in src/bootstrap/test.rs.~~
~~Also, removes the flag from test.rs where prepare_tool_cargo() is called so cargo doesn't complain because the flag has been passed twice.~~
This commit adds `--no-fail-fast` flag to each `cargo test`
command in each tool Step trait implementation (`miri`, `rustfmt` and `clippy`).
Fixes #108261
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r=compiler-errors
Add an InstCombine for redundant casts
`@rustbot` label +A-mir-opt
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Fix overlapping spans in removing extra arguments
Fixes #108225
Each span is already extended to include the previous comma, so extending to the *next* comma is unecessary and causes an ICE with assertions on.
``@rustbot`` label +A-diagnostics
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Convert a hard-warning about named static lifetimes into lint "unused_lifetimes"
Fixes https://github.com/rust-lang/rust/issues/96956.
Some changes are ported from https://github.com/rust-lang/rust/pull/98079, thanks to jeremydavis519.
r? `@estebank` `@petrochenkov`
Any feedback is appreciated!
## Actions
- [x] resolve conflicts
- [x] fix build
- [x] address review comments in last pr
- [x] update tests
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Fix ICE on type alias in recursion
Fixes #108160
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Move some `InferCtxt` methods to `EvalCtxt` in new solver
Moving towards eventually making the `InferCtxt` within `EvalCtxt` private, so that we make sure not to do anything strange in the solver. This doesn't finish this work yet, just gets it started.
r? ``@lcnr``
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Extend `CodegenBackend` trait with a function returning the translation
resources from the codegen backend, which can be added to the complete
list of resources provided to the emitter.
Signed-off-by: David Wood <david.wood@huawei.com>
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`run-make/translation` had some targets that weren't listed in `all` and
thus weren't being tested - the behaviour that should have been being
tested was basically correct fortunately.
Signed-off-by: David Wood <david.wood@huawei.com>
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Instead of loading the Fluent resources for every crate in
`rustc_error_messages`, each crate generates typed identifiers for its
own diagnostics and creates a static which are pulled together in the
`rustc_driver` crate and provided to the diagnostic emitter.
Signed-off-by: David Wood <david.wood@huawei.com>
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Use a lock-free datastructure for source_span
follow up to the perf regression in https://github.com/rust-lang/rust/pull/105462
The main regression is likely the CStore, but let's evaluate the perf impact of this on its own
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This commit adds `--no-fail-fast` flag to each `cargo test`
command in each tool Step trait implementation.
Fixes #108261
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Make sure to quote batch file arguments that contain command prompt special characters.
Additionally add `/d` command line parameter to disable any commands that may change the way variable expansion works.
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