deps: drop serde feature from url, drop rustc-workspace-hack
Cargo now have it's own workspace and rustc dropped [`rustc-workspace-hack`](https://github.com/rust-lang/rust/pull/109133), so no need to unify features here; drop rustc-workspace-hack.
changelog: none
Changelog for Rust 1.70 🔨
Roses are red,
violets are blue,
damn I have an exam to cram,
and this rhyme is a scam
---
This poem is... certainly something... Anyways, hope whoever is reading this, has a lovely day full of sunshine without the need to study :D
---
changelog: none
Rollup of 6 pull requests
Successful merges:
- #111558 (Move tests)
- #111827 (Add build instructions for cranelift backend as part of Rust repo)
- #111988 (Make `TyKind: Debug` have less verbose output)
- #112022 (Check nested obligations during coercion unify in new solver)
- #112057 (Suggest correct `self_ty`)
- #112063 (Add a test for issue 110457/incremental ICE with closures with the same span)
Failed merges:
- #112068 (Move tests from `ui/discrim` dir)
r? `@ghost`
`@rustbot` modify labels: rollup
All the implementations of the trait already are `Copy`, and this seems to be enough to simplify the implementations enough to make the MIR inliner willing to inline basics like `Range::next`.
Add a test for issue 110457/incremental ICE with closures with the same span
Closes#110457
It's probably possible to minimize the test case more, considering that we now know the underlying reason for the ICE, but I didn't.
r? `@cjgillot`
Make `TyKind: Debug` have less verbose output
Current `TyKind: Debug` impl is basically unusable for debugging, its too verbose even for verbose debugging 🤣 This PR replaces the debug logic for `TyKind` with a more manual debug impl instead of a hand expanded derived impl. This should help make #107084 more reasonable to land since the output of `Ty: Debug` will be better.
This isn't a fully completed change to the `Debug` impl of `TyKind` as there's still logic from the derive macro for some variants. Some of the variants are also not consisten with the `-Zverbose` printing of `Ty`, ideally `-Zverbose` printing of `Ty` would also just defer to the debug impl instead of having lots of checks in pretty printing. I plan on fixing this in follow up PRs since it seems tricky to do in this one and its already a large PR 😅
Add build instructions for cranelift backend as part of Rust repo
All other instructions assume that user works with separate repository than Rust compiler repository. When one follows default instructions, cranelift codegen tries to use different sys-root and compiler internal crates which leads to compiler errors when building it.
I needed to do all this steps while adding new intrinsic to rustc.
r? bjorn3
- Switch from `cargo rustdoc` to `cargo doc`
This allows passing `-p` to multiple packages.
- Remove `OsStr` support
It doesn't work with RUSTDOCFLAGS, and we don't support non-utf8 paths
anyway.
- Pass `-p std` for each crate in the standard library
By default cargo only documents the top-level crate, which is
`sysroot` and has no docs.
Previously they were using `all_krates` and various hacks to determine
which crates to document. Switch them to `crate_or_deps` so `ShouldRun`
tells them which crate to document instead of having to guess.
This also makes a few other refactors:
- Remove the now unused `all_krates`; new code should only use
`crate_or_deps`.
- Add tests for documenting Std
- Remove the unnecessary `run_cargo_rustdoc_for` closure so that we only
run cargo once
- Give a more helpful error message when documenting a no_std target
- Use `builder.msg` in the Steps instead of `builder.info`
This is useful for profiling metadata generation.
This comes very close to removing all_krates, but doesn't quite -
there's one last usage left in `doc`.
Go through an intermediate pair of `cc`and `lld` hints instead of mapping CLI options to `LinkerFlavor` directly, and use the target's default linker flavor as a reference.
Load only the crate header for `locator::crate_matches`
Previously, we used the following info to determine whether to load the crate:
1. The METADATA_HEADER, which includes a METADATA_VERSION constant
2. The embedded rustc version
3. Various metadata in the `CrateRoot`, including the SVH
This worked ok most of the time. Unfortunately, when building locally the rustc version is always
the same because `omit-git-hash` is on by default. That meant that we depended only on 1 and 3, and
we are not very good about bumping METADATA_VERSION (it's currently at 7) so in practice we were
only depending on 3. `CrateRoot` is a very large struct and changes somewhat regularly, so this led
to a steady stream of crashes from trying to load it.
Change the logic to add an intermediate step between 2 and 3: introduce a new `CrateHeader` struct
that contains only the minimum info needed to decide whether the crate should be loaded or not. That
avoids having to load all of `CrateRoot`, which in practice means we should crash much less often.
Note that this works because the SVH should be different between any two dependencies, even if the
compiler has changed, because we use `-Zbinary-dep-depinfo` in bootstrap. See
https://github.com/rust-lang/rust/pull/111329#issuecomment-1538303474 for more details about how the
original crash happened.
Use `Cow` in `{D,Subd}iagnosticMessage`.
Each of `{D,Subd}iagnosticMessage::{Str,Eager}` has a comment:
```
// FIXME(davidtwco): can a `Cow<'static, str>` be used here?
```
This commit answers that question in the affirmative. It's not the most compelling change ever, but it might be worth merging.
This requires changing the `impl<'a> From<&'a str>` impls to `impl From<&'static str>`, which involves a bunch of knock-on changes that require/result in call sites being a little more precise about exactly what kind of string they use to create errors, and not just `&str`. This will result in fewer unnecessary allocations, though this will not have any notable perf effects given that these are error paths.
Note that I was lazy within Clippy, using `to_string` in a few places to preserve the existing string imprecision. I could have used `impl Into<{D,Subd}iagnosticMessage>` in various places as is done in the compiler, but that would have required changes to *many* call sites (mostly changing `&format("...")` to `format!("...")`) which didn't seem worthwhile.
r? `@WaffleLapkin`
