macros: Future proof #[no_link]
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jseyfried
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☔ The latest upstream changes (presumably #37269) made this pull request unmergeable. Please resolve the merge conflicts. |
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@nikomatsakis or @eddyb can we get a crater run for this PR please? r=me with a clean crater run |
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@bors r=nrc |
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📌 Commit b283aaf has been approved by |
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macros: Future proof `#[no_link]` This PR future proofs `#[no_link]` for macro modularization (cc #35896). First, we resolve all `#[no_link] extern crate`s. `#[no_link]` crates without `#[macro_use]` or `#[macro_reexport]` are not resolved today, this is a [breaking-change]. For example, ```rust ``` Any breakage can be fixed by simply removing the `#[no_link] extern crate`. Second, `#[no_link] extern crate`s will define an empty module in type namespace to eventually allow importing the crate's macros with `use`. This is a [breaking-change], for example: ```rust mod syntax {} //< This becomes a duplicate error. ``` r? @nrc
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This PR future proofs
#[no_link]for macro modularization (cc #35896).First, we resolve all
#[no_link] extern crates.#[no_link]crates without#[macro_use]or#[macro_reexport]are not resolved today, this is a [breaking-change]. For example,Any breakage can be fixed by simply removing the
#[no_link] extern crate.Second,
#[no_link] extern crates will define an empty module in type namespace to eventually allow importing the crate's macros withuse. This is a [breaking-change], for example:r? @nrc