Document prohibition on inner attribute macros - #2311
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traviscross
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Thanks @ehuss. |
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Proc macro attributes as inner attributes are currently unstable via the `custom_inner_attributes` feature gate (rust-lang/rust#54726).
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This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed. Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers. |
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Update books ## rust-lang/reference 9 commits in afdc77bab886d4455c11247cdd32391bfab636ae..82da570bafd9efed421bdbae0f8603ede8dd308b 2026-08-08 22:04:17 UTC to 2026-07-28 18:20:15 UTC - add c-variadic function definitions (rust-lang/reference#2177) - Update `no_mangle` to use the attribute template (rust-lang/reference#1904) - enums with fields: clarify that repr(C, int) is quite different from repr(int) (rust-lang/reference#2227) - aliasing rules also apply inside private fields (rust-lang/reference#2304) - attributes: do not explain syntax in rules (rust-lang/reference#2306) - Document prohibition on inner attribute macros (rust-lang/reference#2311) - Use authentication for linkcheck (rust-lang/reference#2319) - Stabilize passing 128-bit integers via vector registers with `asm!` on x86 (rust-lang/reference#2313) - Add a rule for attribute macro outline modules (rust-lang/reference#2310)
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Rollup merge of #160866 - rustbot:docs-update, r=traviscross Update books ## rust-lang/reference 9 commits in afdc77bab886d4455c11247cdd32391bfab636ae..82da570bafd9efed421bdbae0f8603ede8dd308b 2026-08-08 22:04:17 UTC to 2026-07-28 18:20:15 UTC - add c-variadic function definitions (rust-lang/reference#2177) - Update `no_mangle` to use the attribute template (rust-lang/reference#1904) - enums with fields: clarify that repr(C, int) is quite different from repr(int) (rust-lang/reference#2227) - aliasing rules also apply inside private fields (rust-lang/reference#2304) - attributes: do not explain syntax in rules (rust-lang/reference#2306) - Document prohibition on inner attribute macros (rust-lang/reference#2311) - Use authentication for linkcheck (rust-lang/reference#2319) - Stabilize passing 128-bit integers via vector registers with `asm!` on x86 (rust-lang/reference#2313) - Add a rule for attribute macro outline modules (rust-lang/reference#2310)
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Proc macro attributes as inner attributes are currently unstable via the
custom_inner_attributesfeature gate (rust-lang/rust#54726).