This is quite a bit of implementation complexity, yet it is quite
broken, and we don't have the maintenance bandwidth to address.
Remove the current implementation if only to reduce bootstrap's
implementation complexity; the `suggest` flow comes with its own set of
hacks.
update to literal-escaper 0.0.4 for better API without `unreachable` and faster string parsing
This is the replacement for just the part of https://github.com/rust-lang/rust/pull/138163 dealing with the changed API of unescape functionality, since that got moved into its own crate.
<del>This uses an unpublished version of literal-escaper (https://github.com/rust-lang/literal-escaper/pull/8).</del>
r? `@nnethercote`
The original reason to exclude it was so it could run before submodules
were initialized. However, those have all been converted to subtrees
now, so the entire workspace is always ready to go.
Revert <https://github.com/rust-lang/rust/pull/138084> to buy time to
consider options that avoids breaking downstream usages of cargo on
distributed `rustc-src` artifacts, where such cargo invocations fail due
to inability to inherit `lints` from workspace root manifest's
`workspace.lints` (this is only valid for the source rust-lang/rust
workspace, but not really the distributed `rustc-src` artifacts).
This breakage was reported in
<https://github.com/rust-lang/rust/issues/138304>.
This reverts commit 48caf81484, reversing
changes made to c6662879b2.
By naming them in `[workspace.lints.rust]` in the top-level
`Cargo.toml`, and then making all `compiler/` crates inherit them with
`[lints] workspace = true`. (I omitted `rustc_codegen_{cranelift,gcc}`,
because they're a bit different.)
The advantages of this over the current approach:
- It uses a standard Cargo feature, rather than special handling in
bootstrap. So, easier to understand, and less likely to get
accidentally broken in the future.
- It works for proc macro crates.
It's a shame it doesn't work for rustc-specific lints, as the comments
explain.
I had forgotten that error_index_generator is using mdbook. This moves
it to be part of the rustbook workspace so that it can share the
dependency with rustbook.
Pinning the resolver to v1 was done in 5abff3753a ("Explicit set
workspace.resolver ...") in order to suppress warnings. Since there is
no specific reason not to use the new resolver and since it fixes
issues, change to `resolver = "2"` everywhere except library and
submodules.
This ensures that the Cargo.lock packaged for it in the rust-src
component is up-to-date, allowing rust-analyzer to run cargo metadata on
the standard library even when the rust-src component is stored in a
read-only location as is necessary for loading crates.io dependencies of
the standard library.
This also simplifies tidy's license check for runtime dependencies as it
can now look at all entries in library/Cargo.lock without having to
filter for just the dependencies of runtime crates. In addition this
allows removing an exception in check_runtime_license_exceptions that
was necessary due to the compiler enabling a feature on the object crate
which pulls in a dependency not allowed for the standard library.
While cargo workspaces normally enable dependencies of multiple targets
to be reused, for the standard library we do not want this reusing to
prevent conflicts between dependencies of the sysroot and of tools that
are built using this sysroot. For this reason we already use an unstable
cargo feature to ensure that any dependencies which would otherwise be
shared get a different -Cmetadata argument as well as using separate
build dirs.
This doesn't change the situation around vendoring. We already have
several cargo workspaces that need to be vendored. Adding another one
doesn't change much.
There are also no cargo profiles that are shared between the root
workspace and the library workspace anyway, so it doesn't add any extra
work when changing cargo profiles.
This commit promotes the `wasm32-wasip2` Rust target to tier 2 as
proposed in rust-lang/compiler-team#760. There are two major changes in
this PR:
1. The `dist-various-2` container, which already produces the other WASI
targets, now has an extra target added for `wasm32-wasip2`.
2. A new `wasm-component-ld` binary is added to all host toolchains when
LLD is enabled. This is the linker used for the `wasm32-wasip2` target.
This new linker is added for all host toolchains to ensure that all host
toolchains can produce the `wasm32-wasip2` target. This is similar to
how `rust-lld` was originally included for all host toolchains to be
able to produce WebAssembly output when the targets were first added.
The new linker is developed [here][wasm-component-ld] and is pulled in
via a crates.io-based dependency to the tree here.
[wasm-component-ld]: https://github.com/bytecodealliance/wasm-component-ld
This cuts down on the amount of data we need to ship and users need to
keep on disk for each Rust toolchain. As noted in the added comment,
there's not much going on in these executables, so the added benefit of
symbols and debuginfo isn't large, while the cost is not insignificant.
This takes each of the binaries (we store 4 identical copies under
different names) from 3.7MB to 384KB.
This also
* bumps cargo to the latest in rust-lang/cargo.
* adds 0BSD to allowed list of licenses
Co-authored-by: Scott Schafer <schaferjscott@gmail.com>
Co-authored-by: Eric Huss <eric@huss.org>
Jieyou Xu