Add diagnostic items for a few of core's builtin macros #117596
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…iaskrgr Rollup of 4 pull requests Successful merges: - rust-lang#116017 (Don't pass `-stdlib=libc++` when building C files on macOS) - rust-lang#117524 (bootstrap/setup: create hooks directory if non-existing) - rust-lang#117588 (Remove unused LoadResult::DecodeIncrCache variant) - rust-lang#117596 (Add diagnostic items for a few of core's builtin macros) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#117596 - thomcc:core_macro_diag_items, r=Nilstrieb Add diagnostic items for a few of core's builtin macros Specifically, `env`, `option_env`, and `include`. There are a number of reasons why people might want to look at these in lints (For example, to ensure that things behave consistently, detect things that might make builds less reproducible, etc). Concretely, in PL/Rust (well, `plrustc`) we have lints that forbid these (which I'd like to [add to clippy as restriction lints](https://rust-lang.zulipchat.com/#narrow/stream/257328-clippy/topic/Landing.20a.20flotilla.20of.20lints.3F) eventually), and `dylint` also has [lints that look for `env!`/`option_env!`](https://github.com/trailofbits/dylint/blob/109a07e9f27a9651ef33b6677ccaddd21466e97a/examples/general/env_cargo_path/src/lib.rs) (although perhaps not `include`), which would benefit from this. My experience is that it's pretty annoying to (robustly) check uses of builtin macros without these IME, although that's perhaps just my own fault (e.g. I could be doing it wrong). At `@Nilstrieb's` suggestion, I've added a comment that explains why these are here, even though they are not used in the compiler. This is mostly to discourage removal, although it's not a big deal if it happens (I'm certainly not suggesting the presence of these be in any way stable). --- In theory this is a library PR (in that it's in library/core), but I'm going to roll compiler because the existence of this or not is much more likely something they care about rather than libs. Hopefully nobody objects to this. r? compiler
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84: Automated pull from upstream `master` r=Dajamante a=github-actions[bot] This PR pulls the following changes from the upstream repository: * rust-lang/rust#117585 * rust-lang/rust#117576 * rust-lang/rust#96979 * rust-lang/rust#117191 * rust-lang/rust#117179 * rust-lang/rust#117574 * rust-lang/rust#117537 * rust-lang/rust#117608 * rust-lang/rust#117596 * rust-lang/rust#117588 * rust-lang/rust#117524 * rust-lang/rust#116017 * rust-lang/rust#117504 * rust-lang/rust#117469 * rust-lang/rust#116218 * rust-lang/rust#117589 * rust-lang/rust#117581 * rust-lang/rust#117503 * rust-lang/rust#117590 * rust-lang/rust#117583 * rust-lang/rust#117570 * rust-lang/rust#117562 * rust-lang/rust#117534 * rust-lang/rust#116894 * rust-lang/rust#110340 * rust-lang/rust#113343 * rust-lang/rust#117579 * rust-lang/rust#117094 * rust-lang/rust#117566 * rust-lang/rust#117564 * rust-lang/rust#117554 * rust-lang/rust#117550 * rust-lang/rust#117343 * rust-lang/rust#115274 * rust-lang/rust#117540 * rust-lang/rust#116412 * rust-lang/rust#115333 * rust-lang/rust#117507 * rust-lang/rust#117538 * rust-lang/rust#117533 * rust-lang/rust#117523 * rust-lang/rust#117520 * rust-lang/rust#117505 * rust-lang/rust#117434 * rust-lang/rust#117535 * rust-lang/rust#117510 * rust-lang/rust#116439 * rust-lang/rust#117508 Co-authored-by: Ben Wiederhake <BenWiederhake.GitHub@gmx.de> Co-authored-by: SabrinaJewson <sejewson@gmail.com> Co-authored-by: J-ZhengLi <lizheng135@huawei.com> Co-authored-by: koka <koka.code@gmail.com> Co-authored-by: bjorn3 <17426603+bjorn3@users.noreply.github.com> Co-authored-by: Joshua Liebow-Feeser <joshlf@users.noreply.github.com> Co-authored-by: lengyijun <sjtu5140809011@gmail.com> Co-authored-by: Zalathar <Zalathar@users.noreply.github.com> Co-authored-by: Oli Scherer <git-spam-no-reply9815368754983@oli-obk.de> Co-authored-by: Philipp Krones <hello@philkrones.com> Co-authored-by: y21 <30553356+y21@users.noreply.github.com> Co-authored-by: bors <bors@rust-lang.org> Co-authored-by: bohan <bohan-zhang@foxmail.com>
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Specifically,
env,option_env, andinclude. There are a number of reasons why people might want to look at these in lints (For example, to ensure that things behave consistently, detect things that might make builds less reproducible, etc).Concretely, in PL/Rust (well,
plrustc) we have lints that forbid these (which I'd like to add to clippy as restriction lints eventually), anddylintalso has lints that look forenv!/option_env!(although perhaps notinclude), which would benefit from this.My experience is that it's pretty annoying to (robustly) check uses of builtin macros without these IME, although that's perhaps just my own fault (e.g. I could be doing it wrong).
At @Nilstrieb's suggestion, I've added a comment that explains why these are here, even though they are not used in the compiler. This is mostly to discourage removal, although it's not a big deal if it happens (I'm certainly not suggesting the presence of these be in any way stable).
In theory this is a library PR (in that it's in library/core), but I'm going to roll compiler because the existence of this or not is much more likely something they care about rather than libs. Hopefully nobody objects to this.
r? compiler