Export `derive` at the crate root: `core::derive` and `std::derive`#154442

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nik-rev wants to merge 1 commit intorust-lang:mainfrom

nik-contrib:derive-root

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nik-rev commented Mar 26, 2026 •

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This PR makes the derive macro available at the crate root:

#[std::derive(Clone)]
#[core::derive(Copy)]
struct X;

ACP: rust-lang/libs-team#766

Tracking issue: #154645

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rustbot added S-waiting-on-review T-compiler T-libs labels

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nik-rev commented Mar 26, 2026 •

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The CI fails due to 2 broken links in the reference / attribuse / derive.md

This PR requires an update to the reference. Specifically:

r[attributes.derive.stdlib]
The derive attribute is exported in the standard library prelude as [core::prelude::v1::derive].

This was referenced Mar 28, 2026

Export the derive macro at core::derive and std::derive. rust-lang/libs-team#766

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Change path to the derive macro rust-lang/reference#2218

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Tracking Issue for derive_macro_global_path #154645

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Kivooeo commented Mar 31, 2026 •

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that's not a compiler PR so I'm rerolling a reviewer

r? libs

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jhpratt commented Apr 1, 2026

r? jhpratt

r=me once CI is passing. This seems simple enough.

rustbot assigned jhpratt and unassigned Mark-Simulacrum

nik-rev force-pushed the derive-root branch 2 times, most recently from 04f4360 to 4f5ad37 Compare

April 1, 2026 08:12

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          Export derive at core::derive and std::derive

fec0998

nik-rev force-pushed the derive-root branch from 4f5ad37 to fec0998 Compare

April 1, 2026 08:54

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nik-rev commented Apr 1, 2026

@bors r=jhpratt

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rust-bors bot commented Apr 1, 2026

@nik-rev: 🔑 Insufficient privileges: not in review users

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jhpratt commented Apr 1, 2026

@bors r+ rollup

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rust-bors bot commented Apr 1, 2026

📌 Commit fec0998 has been approved by jhpratt

It is now in the queue for this repository.

rust-bors bot added S-waiting-on-bors and removed S-waiting-on-review labels

JonathanBrouwer added a commit to JonathanBrouwer/rust that referenced this pull request


          Rollup merge of rust-lang#154442 - nik-contrib:derive-root, r=jhpratt

294ea8d

Export `derive` at the crate root: `core::derive` and `std::derive`

This PR makes the `derive` macro available at the crate root:

```rust
#[std::derive(Clone)]
#[core::derive(Copy)]
struct X;
```

ACP: rust-lang/libs-team#766

Tracking issue: rust-lang#154645

JonathanBrouwer mentioned this pull request

Rollup of 6 pull requests #154688

Closed

GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request


          Rollup merge of rust-lang#154442 - nik-contrib:derive-root, r=jhpratt

7ee62ee

Export `derive` at the crate root: `core::derive` and `std::derive`

This PR makes the `derive` macro available at the crate root:

```rust
#[std::derive(Clone)]
#[core::derive(Copy)]
struct X;
```

ACP: rust-lang/libs-team#766

Tracking issue: rust-lang#154645

GuillaumeGomez mentioned this pull request

Rollup of 7 pull requests #154693

Closed

rust-bors bot pushed a commit that referenced this pull request


          Auto merge of #154693 - GuillaumeGomez:rollup-4KpJ9MV, r=GuillaumeGomez

2f9fff2

Rollup of 7 pull requests

Successful merges:

 - #153105 (Compute the result of a projection type with region errors)
 - #153960 (Make `layout_of` cycles fatal errors)
 - #154666 (Remove `StableHashContext` impls)
 - #154669 (Introduce #[diagnostic::on_move] on `Arc`)
 - #154442 (Export `derive` at the crate root: `core::derive` and `std::derive`)
 - #154660 (Avoid creating async return opaques for foreign async fns)
 - #154680 ([rustdoc] Replace `DocContext` with `TyCtxt` wherever possible)

jhpratt added a commit to jhpratt/rust that referenced this pull request


          Rollup merge of rust-lang#154442 - nik-contrib:derive-root, r=jhpratt

8b2e2ac

Export `derive` at the crate root: `core::derive` and `std::derive`

This PR makes the `derive` macro available at the crate root:

```rust
#[std::derive(Clone)]
#[core::derive(Copy)]
struct X;
```

ACP: rust-lang/libs-team#766

Tracking issue: rust-lang#154645

jhpratt mentioned this pull request

Rollup of 11 pull requests #154701

Closed

rust-bors bot pushed a commit that referenced this pull request


          Auto merge of #154701 - jhpratt:rollup-u0ZMiMs, r=jhpratt

21dbcd2

Rollup of 11 pull requests

Successful merges:

 - #153105 (Compute the result of a projection type with region errors)
 - #153286 (various fixes for scalable vectors)
 - #153960 (Make `layout_of` cycles fatal errors)
 - #154527 (Emit pre-expansion feature gate warnings for negative impls and specialization)
 - #154666 (Remove `StableHashContext` impls)
 - #154669 (Introduce #[diagnostic::on_move] on `Arc`)
 - #154442 (Export `derive` at the crate root: `core::derive` and `std::derive`)
 - #154644 (rustdoc: seperate methods and associated functions in sidebar)
 - #154660 (Avoid creating async return opaques for foreign async fns)
 - #154671 (Add a test for a past ICE when calling a const fn of an unresolved type with the wrong number of args)
 - #154680 ([rustdoc] Replace `DocContext` with `TyCtxt` wherever possible)

jhpratt added a commit to jhpratt/rust that referenced this pull request


          Rollup merge of rust-lang#154442 - nik-contrib:derive-root, r=jhpratt

306e987

Export `derive` at the crate root: `core::derive` and `std::derive`

This PR makes the `derive` macro available at the crate root:

```rust
#[std::derive(Clone)]
#[core::derive(Copy)]
struct X;
```

ACP: rust-lang/libs-team#766

Tracking issue: rust-lang#154645

jhpratt mentioned this pull request

Rollup of 11 pull requests #154705

Closed

rust-bors bot pushed a commit that referenced this pull request


          Auto merge of #154705 - jhpratt:rollup-Ef0J2Wm, r=jhpratt

92a904d

Rollup of 11 pull requests

Successful merges:

 - #153105 (Compute the result of a projection type with region errors)
 - #153960 (Make `layout_of` cycles fatal errors)
 - #154527 (Emit pre-expansion feature gate warnings for negative impls and specialization)
 - #154666 (Remove `StableHashContext` impls)
 - #154669 (Introduce #[diagnostic::on_move] on `Arc`)
 - #154213 (tidy-alphabetical: fix line number in error message)
 - #154442 (Export `derive` at the crate root: `core::derive` and `std::derive`)
 - #154644 (rustdoc: seperate methods and associated functions in sidebar)
 - #154660 (Avoid creating async return opaques for foreign async fns)
 - #154671 (Add a test for a past ICE when calling a const fn of an unresolved type with the wrong number of args)
 - #154680 ([rustdoc] Replace `DocContext` with `TyCtxt` wherever possible)

JonathanBrouwer added a commit to JonathanBrouwer/rust that referenced this pull request


          Rollup merge of rust-lang#154442 - nik-contrib:derive-root, r=jhpratt

Export `derive` at the crate root: `core::derive` and `std::derive`

This PR makes the `derive` macro available at the crate root:

```rust
#[std::derive(Clone)]
#[core::derive(Copy)]
struct X;
```

ACP: rust-lang/libs-team#766

Tracking issue: rust-lang#154645

JonathanBrouwer mentioned this pull request

Rollup of 21 pull requests #154716

Closed

rust-bors bot pushed a commit that referenced this pull request


          Auto merge of #154716 - JonathanBrouwer:rollup-mjhodpw, r=JonathanBro…

fc16f98

…uwer

Rollup of 21 pull requests

Successful merges:

 - #153105 (Compute the result of a projection type with region errors)
 - #153286 (various fixes for scalable vectors)
 - #153532 (Attributes containing rustc)
 - #153960 (Make `layout_of` cycles fatal errors)
 - #154527 (Emit pre-expansion feature gate warnings for negative impls and specialization)
 - #154666 (Remove `StableHashContext` impls)
 - #154669 (Introduce #[diagnostic::on_move] on `Arc`)
 - #154710 (opaque_generic_const_args -> generic_const_args)
 - #154712 (Revert "`-Znext-solver` Remove the forced ambiguity hack from search graph")
 - #154713 (Stop compiling when we get resolving crate failure)
 - #154213 (tidy-alphabetical: fix line number in error message)
 - #154425 (Migrate transmute tests)
 - #154442 (Export `derive` at the crate root: `core::derive` and `std::derive`)
 - #154469 (mGCA: Lower spans for literal const args)
 - #154578 (Rename `probe_ty_var` to `try_resolve_ty_var`)
 - #154615 (Moving issues)
 - #154644 (rustdoc: seperate methods and associated functions in sidebar)
 - #154660 (Avoid creating async return opaques for foreign async fns)
 - #154671 (Add a test for a past ICE when calling a const fn of an unresolved type with the wrong number of args)
 - #154680 ([rustdoc] Replace `DocContext` with `TyCtxt` wherever possible)
 - #154709 (Revert `Ty` type alias in `rustc_type_ir`)

JonathanBrouwer added a commit to JonathanBrouwer/rust that referenced this pull request


          Rollup merge of rust-lang#154442 - nik-contrib:derive-root, r=jhpratt

b253bf1

Export `derive` at the crate root: `core::derive` and `std::derive`

This PR makes the `derive` macro available at the crate root:

```rust
#[std::derive(Clone)]
#[core::derive(Copy)]
struct X;
```

ACP: rust-lang/libs-team#766

Tracking issue: rust-lang#154645

JonathanBrouwer mentioned this pull request

Rollup of 21 pull requests #154718

Open

rust-bors bot pushed a commit that referenced this pull request


          Auto merge of #154718 - JonathanBrouwer:rollup-52sF5zX, r=JonathanBro…

0e9b775

…uwer

Rollup of 21 pull requests

Successful merges:

 - #153105 (Compute the result of a projection type with region errors)
 - #153286 (various fixes for scalable vectors)
 - #153532 (Attributes containing rustc)
 - #153960 (Make `layout_of` cycles fatal errors)
 - #154527 (Emit pre-expansion feature gate warnings for negative impls and specialization)
 - #154666 (Remove `StableHashContext` impls)
 - #154669 (Introduce #[diagnostic::on_move] on `Arc`)
 - #154710 (opaque_generic_const_args -> generic_const_args)
 - #154712 (Revert "`-Znext-solver` Remove the forced ambiguity hack from search graph")
 - #153614 (`FindParamInClause` handle edge-cases)
 - #154213 (tidy-alphabetical: fix line number in error message)
 - #154425 (Migrate transmute tests)
 - #154442 (Export `derive` at the crate root: `core::derive` and `std::derive`)
 - #154469 (mGCA: Lower spans for literal const args)
 - #154578 (Rename `probe_ty_var` to `try_resolve_ty_var`)
 - #154615 (Moving issues)
 - #154644 (rustdoc: seperate methods and associated functions in sidebar)
 - #154660 (Avoid creating async return opaques for foreign async fns)
 - #154671 (Add a test for a past ICE when calling a const fn of an unresolved type with the wrong number of args)
 - #154680 ([rustdoc] Replace `DocContext` with `TyCtxt` wherever possible)
 - #154709 (Revert `Ty` type alias in `rustc_type_ir`)

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