rust/library/proc_macro/src, branch stable

Rollup merge of #143631 - hkBst:update-escaper-2, r=compiler-errors

2025-07-17T08:41:45+00:00

update to literal-escaper-0.0.5 Quoting from the changelog, this version brings: - Use `NonZero` in `unescape_c_str` and `check_raw_c_str` to statically exclude nuls - Add `#[inline]` to small functions for improved performance

Rollup merge of #141996 - Daniel-Aaron-Bloom:dollar_crate, r=petrochenkov

2025-07-10T07:23:52+00:00

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).

update to literal-escaper-0.0.5

2025-07-08T10:16:44+00:00

Auto merge of #140999 - hkBst:update-escaper, r=nnethercote

2025-06-25T01:03:30+00:00

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. ~~This uses an unpublished version of literal-escaper (https://github.com/rust-lang/literal-escaper/pull/8).~~ r? `@nnethercote`

update to literal-escaper 0.0.4 for better API without `unreachable` and faster string parsing

2025-06-23T06:36:22+00:00

Add support for repetition to `proc_macro::quote`

2025-06-16T16:36:54+00:00

Remove all support for wasm's legacy ABI

2025-06-14T09:57:06+00:00

Add support for $crate to Ident

2025-06-12T08:13:24+00:00

Do not get proc_macro from the sysroot in rustc

2025-05-27T15:49:28+00:00

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.

manual clippy fixes

2025-05-12T13:33:41+00:00