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Rollup of 11 pull requests #94531
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Rollup of 11 pull requests #94531
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Following up on rust-lang#88564, this adds documentation explaining why `BorrowedFd::to_owned` returns another `BorrowedFd` rather than an `OwnedFd`. And similar for `BorrowedHandle` and `BorrowedSocket`.
This change weakens the descriptions of the `{as,into,from}_raw_{fd,handle,socket}` descriptions from saying that they *do* express ownership relations to say that they are *typically used* in ways that express ownership relations. This needed needed since, for example, std's own [`RawFd`] implements `{As,From,Into}Fd` without any of the ownership relationships. This adds proper `# Safety` comments to `from_raw_{fd,handle,socket}`, adds the requirement that raw handles be not opened with the `FILE_FLAG_OVERLAPPED` flag, and merges the `OwnedHandle::from_raw_handle` comment into the main `FromRawHandle::from_raw_handle` comment. And, this changes `HandleOrNull` and `HandleOrInvalid` to not implement `FromRawHandle`, since they are intended for limited use in FFI situations, and not for generic use, and they have constraints that are stronger than the those of `FromRawHandle`. [`RawFd`]: https://doc.rust-lang.org/stable/std/os/unix/io/type.RawFd.html
This function is documented in more detail in the `FromRawSocket` trait.
Also, rename `BorrowedHandle::borrow_raw_handle` and `BorrowedSocket::borrow_raw_socket` to `BorrowedHandle::borrow_raw` and `BorrowedSocket::borrow_raw`. This is just a minor rename to reduce redundancy in the user code calling these functions, and to eliminate an inessential difference between `BorrowedFd` code and `BorrowedHandle`/`BorrowedSocket` code. While here, add a simple test exercising `BorrowedFd::borrow_raw_fd`.
Only point at the end of the crate. We could try making it point at the beginning of the crate, but that is confused with `DUMMY_SP`, causing the output to be *worse*. This change will make it so that VSCode will *not* underline the whole file when `main` is missing, so other errors will be visible.
Add `rustc_middle::ty::suggest_constraining_type_params` that suggests adding multiple constraints. `suggest_constraining_type_param` now just forwards params to this new function.
Previously we've only suggested adding `Copy` bounds when the type being moved/copied is a type parameter (generic). With this commit we also suggest adding bounds when a type - Can be copy - All predicates that need to be satisfied for that are based on type params i.e. we will suggest `T: Copy` for `Option<T>`, but won't suggest anything for `Option<String>`. Future work: it would be nice to also suggest adding `.clone()` calls
Modify the tier 3 non-ARM targets to show the standard library will no longer build for these and there is no work being done to change that.
adds more archs for openbsd: arm, mips64, powerpc, powerpc64, and riscv64.
update char signess for openbsd it adds more archs support for openbsd: arm, mips64, powerpc, powerpc64, and riscv64.
Do not point at whole file missing `fn main` Only point at the end of the crate. We could try making it point at the beginning of the crate, but that is confused with `DUMMY_SP`, causing the output to be *worse*. This change will make it so that VSCode will *not* underline the whole file when `main` is missing, so other errors will be visible.
…rrowedfd-toowned, r=joshtriplett Add documentation about `BorrowedFd::to_owned`. Following up on rust-lang#88564, this adds documentation explaining why `BorrowedFd::to_owned` returns another `BorrowedFd` rather than an `OwnedFd`. And similar for `BorrowedHandle` and `BorrowedSocket`. r? `@joshtriplett`
…joshtriplett Update the documentation for `{As,Into,From}Raw{Fd,Handle,Socket}`. This change weakens the descriptions of the `{as,into,from}_raw_{fd,handle,socket}` descriptions from saying that they *do* express ownership relations to say that they are *typically used* in ways that express ownership relations. This is needed since, for example, std's own [`RawFd`] implements `{As,From,Into}Fd` without any of the ownership relationships. This adds proper `# Safety` comments to `from_raw_{fd,handle,socket}`, adds the requirement that raw handles be not opened with the `FILE_FLAG_OVERLAPPED` flag, and merges the `OwnedHandle::from_raw_handle` comment into the main `FromRawHandle::from_raw_handle` comment. And, this changes `HandleOrNull` and `HandleOrInvalid` to not implement `FromRawHandle`, since they are intended for limited use in FFI situations, and not for generic use, and they have constraints that are stronger than the those of `FromRawHandle`. [`RawFd`]: https://doc.rust-lang.org/stable/std/os/unix/io/type.RawFd.html
…, r=joshtriplett Rename `BorrowedFd::borrow_raw_fd` to `BorrowedFd::borrow_raw`. Also, rename `BorrowedHandle::borrow_raw_handle` and `BorrowedSocket::borrow_raw_socket` to `BorrowedHandle::borrow_raw` and `BorrowedSocket::borrow_raw`. This is just a minor rename to reduce redundancy in the user code calling these functions, and to eliminate an inessential difference between `BorrowedFd` code and `BorrowedHandle`/`BorrowedSocket` code. While here, add a simple test exercising `BorrowedFd::borrow_raw_fd`. r? `@joshtriplett`
Ensure stability directives are checked in all cases Split off rust-lang#93017 Stability and deprecation were not checked in all cases, for instance if a type error happened. This PR moves the check earlier in the pipeline to ensure the errors are emitted in all cases. r? ````@lcnr````
…ebank Adt copy suggestions Previously we've only suggested adding `Copy` bounds when the type being moved/copied is a type parameter (generic). With this PR we also suggest adding bounds when a type - Can be copy - All predicates that need to be satisfied for that are based on type params i.e. we will suggest `T: Copy` for `Option<T>`, but won't suggest anything for `Option<String>`. An example: ```rust fn duplicate<T>(t: Option<T>) -> (Option<T>, Option<T>) { (t, t) } ``` New error (current compiler doesn't provide `help`:): ```text error[E0382]: use of moved value: `t` --> t.rs:2:9 | 1 | fn duplicate<T>(t: Option<T>) -> (Option<T>, Option<T>) { | - move occurs because `t` has type `Option<T>`, which does not implement the `Copy` trait 2 | (t, t) | - ^ value used here after move | | | value moved here | help: consider restricting type parameter `T` | 1 | fn duplicate<T: Copy>(t: Option<T>) -> (Option<T>, Option<T>) { | ++++++ ``` Fixes rust-lang#93623 r? `````@estebank````` `````@rustbot````` label +A-diagnostics +A-suggestion-diagnostics +C-enhancement ---- I'm not at all sure if this is the right implementation for this kind of suggestion, but it seems to work :')
…henkov Improve allowness of the unexpected_cfgs lint This pull-request improve the allowness (`#[allow(...)]`) of the `unexpected_cfgs` lint. Before this PR only crate level `#![allow(unexpected_cfgs)]` worked, now with this PR it also work when put around `cfg!` or if it is in a upper level. Making it work ~for the attributes `cfg`, `cfg_attr`, ...~ for the same level is awkward as the current code is design to give "Some parent node that is close to this macro call" (cf. https://doc.rust-lang.org/nightly/nightly-rustc/rustc_expand/base/struct.ExpansionData.html) meaning that allow on the same line as an attribute won't work. I'm note even sure if this would be possible. Found while working on rust-lang#94298. r? ``````@petrochenkov``````
Documentation was missed when demoting Windows XP to no_std only After a quick discussion on rust-lang#81250 which removed special casing for mutexes added [here](rust-lang@10b103a) to support Windows XP, we can't say that the standard library can build for it. This change modifies the tier 3 non-ARM targets to show the standard library will no longer build for these and there is no work being done to change that.
Miri/CTFE: properly treat overflow in (signed) division/rem as UB To my surprise, it looks like LLVM treats overflow of signed div/rem as UB. From what I can tell, MIR `Div`/`Rem` directly lowers to the corresponding LLVM operation, so to make that correct we also have to consider these overflows UB in the CTFE/Miri interpreter engine. r? ````@oli-obk````
…lacrum Remove num_cpus dependency from bootstrap, build-manifest and rustc_s… …ession `std::threads::available_parallelism` was stabilized in rust 1.59. r? `@Mark-Simulacrum`
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@bors r+ rollup=never p=11 |
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Successful merges:
fn main
#93142 (Do not point at whole file missingfn main
)BorrowedFd::to_owned
. #93354 (Add documentation aboutBorrowedFd::to_owned
.){As,Into,From}Raw{Fd,Handle,Socket}
. #93562 (Update the documentation for{As,Into,From}Raw{Fd,Handle,Socket}
.)BorrowedFd::borrow_raw_fd
toBorrowedFd::borrow_raw
. #93663 (RenameBorrowedFd::borrow_raw_fd
toBorrowedFd::borrow_raw
.)Failed merges:
r? @ghost
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