Elide superfluous storage markers
Follow the existing strategy of omitting the storage markers for temporaries
introduced for internal usage when elaborating derefs and deref projections.
Those temporaries are simple scalars which are used immediately after being
defined and never have their address taken. There is no benefit from storage
markers from either liveness analysis or code generation perspective.
Sync rustc_codegen_cranelift
The main highlights this time are support for parallel compilation of codegen units (by me) and improved windows support (by ``@afonso360)`` In addition ``@afonso360`` added abi-checker to cg_clif's CI. This has already catched an abi compatibility issue with AArch64. The fix has landed on Cranelift's main branch, but doesn't yet have a release. ``@uweigand`` also submitted a couple of PR's that will are prerequisites for supporting IBM's s390x architecture.
r? ``@ghost``
``@rustbot`` label +A-codegen +A-cranelift +T-compiler
rustdoc: ayu code color selector more specific
According to https://github.com/rust-lang/rust/pull/100960#issuecomment-1225970579, this selector is only really intended to apply to item info. However, it's so broad that it's hard to tell when it deliberately applies vs where it accidentally applies.
let-else: break out to one scope higher for let-else
```@est31``` This PR follows up with #99518 which is to break out to the last remainder scope. It breaks to the out-most `region_scope` of the block if the first statement is a `let-else`.
Rollup of 15 pull requests
Successful merges:
- #99993 (linker: Update some outdated comments)
- #100220 (Properly forward `ByRefSized::fold` to the inner iterator)
- #100826 (sugg: take into count the debug formatting)
- #100855 (Extra documentation for new formatting feature)
- #100888 (Coherence negative impls implied bounds)
- #100901 (Make some methods private)
- #100906 (Suggest alternatives when trying to mutate a `HashMap`/`BTreeMap` via indexing)
- #100912 (Diagnose missing includes in run-make tests)
- #100919 (Use par_body_owners for liveness)
- #100922 (Rewrite error index generator to greatly reduce the size of the pages)
- #100926 (Update README.md)
- #100930 (Use `--userns=keep-id` when "docker" is really podman)
- #100938 (rustdoc: remove unused CSS rule)
- #100940 (Do not suggest adding a bound to a opaque type)
- #100945 (Add a missing test case for impl generic mismatch)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
Add a missing test case for impl generic mismatch
This suggestion use different span depending on whether the method has generics or not, so I added a test case about the method with some generics.
rustdoc: remove unused CSS rule
According to [blame], this rule was added to support enum struct variants. However, enum struct variants don't use tables in their design any more, so this rule does nothing.
[blame]: 87991d5f5d/src/librustdoc/html/static/css/rustdoc.css (L748)
Use `--userns=keep-id` when "docker" is really podman
Rootless podman creates a separate user namespace, where an inner
`LOCAL_USER_ID` will map to a different subuid range on the host.
The "keep-id" mode maps the current UID directly into the container.
This makes `src/ci/docker/run.sh` work better for testing container
images on systems running podman, where "docker" is just a shim.
Rewrite error index generator to greatly reduce the size of the pages
Fixes https://github.com/rust-lang/rust/issues/100736.
Instead of having all error codes in a same page (making the DOM way too big), I split the output into multiple files and generated a list of links (if there is an explanation) to the error codes' explanation into the already existing file.
I also used this opportunity to greatly simplify the code. Instead of needing a `build.rs`, I simply imported the file we want and wrote the macro which generates a function containing everything we need. We just need to call it to get the error codes and their explanation (if any). Also, considering the implementations between markdown and HTML formats differed even further, the `Formatter` trait was becoming too problematic so I removed it too.
You can test it [here](https://rustdoc.crud.net/imperio/rewrite-error-index/error-index.html).
cc ``@jsha``
r? ``@notriddle``
Use par_body_owners for liveness
I did this refactoring while working on something else. Liveness is about bodies, there is no reason to use par_for_each_module here.
Tests are updated because things are visited in a different order. I checked diagnostics are same, just in a different (and IMO, better) order.
Suggest alternatives when trying to mutate a `HashMap`/`BTreeMap` via indexing
The error can be quite confusing to newcomers.
Fixes#100873.
I'm not so sure about the message, open to wording suggestions.
Coherence negative impls implied bounds
Fixes#93875
This PR is rebased on top of #100789 and it would need to include that one which is already r+ed.
r? ``@nikomatsakis``
cc ``@lcnr`` (which I've talked about 3222f420d9, I guess after you finish your reordering of modules and work with OutlivesEnvironmentEnv this commit can just be reverted).
Extra documentation for new formatting feature
Documentation of this feature was added in #90473 and released in Rust 1.58. However, high traffic macros did not receive new examples. Namely `println!()` and `format!()`.
The doc comments included in Rust are super important to the community- especially newcomers. I have met several other newbies like myself who are unaware of this recent (well about 7 months old now) update to the language allowing for convenient intra-string identifiers.
Bringing small examples of this feature to the doc comments of `println!()` and `format!()` would be helpful to everyone learning the language.
[Blog Post Announcing Feature](https://blog.rust-lang.org/2022/01/13/Rust-1.58.0.html)
[Feature PR](https://github.com/rust-lang/rust/pull/90473) - includes several instances of documentation of the feature- minus the macros in question for this PR
*This is my first time contributing to a project this large. Feedback would mean the world to me 😄*
---
*Recreated; I violated the [No-Merge Policy](https://rustc-dev-guide.rust-lang.org/git.html#no-merge-policy)*
sugg: take into count the debug formatting
Closes https://github.com/rust-lang/rust/issues/100648
This PR will fix a suggestion error by taking into consideration also the `:?` symbol and act in a different way
``@rustbot`` r? ``@compiler-errors``
N.B: I did not find a full way to test the change, any idea?
Update cargo
7 commits in 9809f8ff33c2b998919fd0432c626f0f7323697a..6da726708a4406f31f996d813790818dce837161
2022-08-16 22:10:06 +0000 to 2022-08-23 21:39:56 +0000
- Update non-ASCII crate name warning message (rust-lang/cargo#11017)
- Add more tests for aggressive or precise update (rust-lang/cargo#11011)
- Ignore broken but excluded file during traversing (rust-lang/cargo#11008)
- Improve error message for wrong target names (rust-lang/cargo#10999)
- Bump snapbox to 0.3 (rust-lang/cargo#11005)
- remove missed reference to workspace inheritance in unstable.md (rust-lang/cargo#11001)
- Warning when precise or aggressive without -p flag (rust-lang/cargo#10988)
Optimize `Wtf8Buf::into_string` for the case where it contains UTF-8.
Add a `is_known_utf8` flag to `Wtf8Buf`, which tracks whether the
string is known to contain UTF-8. This is efficiently computed in many
common situations, such as when a `Wtf8Buf` is constructed from a `String`
or `&str`, or with `Wtf8Buf::from_wide` which is already doing UTF-16
decoding and already checking for surrogates.
This makes `OsString::into_string` O(1) rather than O(N) on Windows in
common cases.
And, it eliminates the need to scan through the string for surrogates in
`Args::next` and `Vars::next`, because the strings are already being
translated with `Wtf8Buf::from_wide`.
Many things on Windows construct `OsString`s with `Wtf8Buf::from_wide`,
such as `DirEntry::file_name` and `fs::read_link`, so with this patch,
users of those functions can subsequently call `.into_string()` without
paying for an extra scan through the string for surrogates.
r? `@ghost`
According to [blame], this rule was added to support enum struct
variants. However, enum struct variants don't use tables in their design
any more, so this rule does nothing.
[blame]: 87991d5f5d/src/librustdoc/html/static/css/rustdoc.css (L748)
fluent: mandate slug names to be prefixed by crate name
This is currently only convention, but not actively checked for.
Additionally, improve error messages to highlight the path of the offending fluent file rather than the identifier preceding it.
This will conflict with #100671, so I'll leave it as draft until that's merged.
Rootless podman creates a separate user namespace, where an inner
`LOCAL_USER_ID` will map to a different subuid range on the host.
The "keep-id" mode maps the current UID directly into the container.
This makes `src/ci/docker/run.sh` work better for testing container
images on systems running podman, where "docker" is just a shim.
Move Error trait into core
This PR moves the error trait from the standard library into a new unstable `error` module within the core library. The goal of this PR is to help unify error reporting across the std and no_std ecosystems, as well as open the door to integrating the error trait into the panic reporting system when reporting panics whose source is an errors (such as via `expect`).
This PR is a rewrite of https://github.com/rust-lang/rust/pull/90328 using new compiler features that have been added to support error in core.
