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update to literal-escaper-0.0.5
Quoting from the changelog, this version brings:
- Use `NonZero<char/u8>` in `unescape_c_str` and `check_raw_c_str` to statically exclude nuls
- Add `#[inline]` to small functions for improved performance
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Fix `proc_macro::Ident`'s handling of `$crate`
This PR is addresses a few minor bugs, all relating to `proc_macro::Ident`'s support for `$crate`. `Ident` currently supports `$crate` (as can be seen in the `mixed-site-span` test), but:
* `proc_macro::Symbol::can_be_raw` is out of sync with `rustc_span::Symbol::can_be_raw`
* former doesn't cover `$crate` while the latter does cover `kw::DollarCrate`
* `Ident::new` rejects `$crate`
* This conflicts with the [reference definition](https://doc.rust-lang.org/nightly/reference/macros-by-example.html#r-macro.decl.meta.specifier) of `ident` which includes `$crate`.
* This also conflicts with the documentation on [`Display for Ident`](https://doc.rust-lang.org/proc_macro/struct.Ident.html#impl-Display-for-Ident) which says the output "should be losslessly convertible back into the same identifier".
This PR fixes the above issues and extends the `mixed-site-span` test to exercise these fixed code paths, as well as validating the different possible spans resolve `$crate` as expected (for both the new and old `$crate` construction code paths).
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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This uses an unpublished version of literal-escaper (https://github.com/rust-lang/literal-escaper/pull/8).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`
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faster string parsing
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With the stage0 refactor the proc_macro version found in the sysroot
will no longer always match the proc_macro version that proc-macros get
compiled with by the rustc executable that uses this proc_macro. This
will cause problems as soon as the ABI of the bridge gets changed to
implement new features or change the way existing features work.
To fix this, this commit changes rustc crates to depend directly on the
local version of proc_macro which will also be used in the sysroot that
rustc will build.
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GuillaumeGomez:proc-macro_add_value_retrieval_methods, r=Amanieu"
This reverts commit 08dfbf49e30d917c89e49eb14cb3f1e8b8a1c9ef, reversing
changes made to 10bcdad7df0de3cfb95c7bdb7b16908e73cafc09.
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GuillaumeGomez:proc-macro_add_value_retrieval_methods, r=Amanieu
Add `*_value` methods to proc_macro lib
This is the implementation of https://github.com/rust-lang/libs-team/issues/459.
It allows to get the actual value (unescaped) of the different string literals.
Part of https://github.com/rust-lang/rust/issues/136652.
r? libs-api
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Use `std::mem::{size_of, size_of_val, align_of, align_of_val}` from the
prelude instead of importing or qualifying them.
These functions were added to all preludes in Rust 1.80.
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r=tgross35
proc_macro: Use `ToTokens` trait in `quote` macro
Tracking issues: #130977, #54722
This PR changed `proc_macro::quote!` to use `ToTokens` trait instead of `TokenStream::from`, and migrated test cases from `quote` crate.
r? `@dtolnay`
CC `@tgross35`
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This is the only trait specializable outside of the standard library.
Before stabilizing specialization we will probably want to remove
support for this. It was originally made specializable to allow a more
efficient ToString in libproc_macro back when this way the only way to
get any data out of a TokenStream. We now support getting individual
tokens, so proc macros no longer need to call it as often.
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This reverts commit da8ac73d910a446e796f511c0dda97e49d14f044.
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A partial stabilization that only affects:
- AllocType<T>::new_uninit
- AllocType<T>::assume_init
- AllocType<[T]>::new_uninit_slice
- AllocType<[T]>::assume_init
where "AllocType" is Box, Rc, or Arc
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Clean and enable `rustdoc::unescaped_backticks` for `core/alloc/std/test/proc_macro`
I am not sure if the lint is supposed to be "ready enough" (since it is `allow` by default), but it does catch a couple issues in `core` (`alloc`, `std`, `test` and `proc_macro` are already clean), so I propose making it `warn` in all the crates rendered in the website.
Cc: `@GuillaumeGomez`
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They are all clean now, so enable the lint to keep them clean going forward.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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The previous commit updated `rustfmt.toml` appropriately. This commit is
the outcome of running `x fmt --all` with the new formatting options.
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