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This was missing from https://github.com/rust-lang/rust/pull/27451
r? @eddyb
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The FCP is coming to a close and 1.4 is coming out soon, so this brings in the
libs team decision for all library features this cycle.
Stabilized APIs:
* `<Box<str>>::into_string`
* `Arc::downgrade`
* `Arc::get_mut`
* `Arc::make_mut`
* `Arc::try_unwrap`
* `Box::from_raw`
* `Box::into_raw`
* `CStr::to_str`
* `CStr::to_string_lossy`
* `CString::from_raw`
* `CString::into_raw`
* `IntoRawFd::into_raw_fd`
* `IntoRawFd`
* `IntoRawHandle::into_raw_handle`
* `IntoRawHandle`
* `IntoRawSocket::into_raw_socket`
* `IntoRawSocket`
* `Rc::downgrade`
* `Rc::get_mut`
* `Rc::make_mut`
* `Rc::try_unwrap`
* `Result::expect`
* `String::into_boxed_slice`
* `TcpSocket::read_timeout`
* `TcpSocket::set_read_timeout`
* `TcpSocket::set_write_timeout`
* `TcpSocket::write_timeout`
* `UdpSocket::read_timeout`
* `UdpSocket::set_read_timeout`
* `UdpSocket::set_write_timeout`
* `UdpSocket::write_timeout`
* `Vec::append`
* `Vec::split_off`
* `VecDeque::append`
* `VecDeque::retain`
* `VecDeque::split_off`
* `rc::Weak::upgrade`
* `rc::Weak`
* `slice::Iter::as_slice`
* `slice::IterMut::into_slice`
* `str::CharIndices::as_str`
* `str::Chars::as_str`
* `str::split_at_mut`
* `str::split_at`
* `sync::Weak::upgrade`
* `sync::Weak`
* `thread::park_timeout`
* `thread::sleep`
Deprecated APIs
* `BTreeMap::with_b`
* `BTreeSet::with_b`
* `Option::as_mut_slice`
* `Option::as_slice`
* `Result::as_mut_slice`
* `Result::as_slice`
* `f32::from_str_radix`
* `f64::from_str_radix`
Closes #27277
Closes #27718
Closes #27736
Closes #27764
Closes #27765
Closes #27766
Closes #27767
Closes #27768
Closes #27769
Closes #27771
Closes #27773
Closes #27775
Closes #27776
Closes #27785
Closes #27792
Closes #27795
Closes #27797
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Fixes #28109
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There is no longer a need for that pattern, since enums are now qualified.
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Since enums are namespaced now, should we also remove the `Fk` prefixes from `FnKind` and remove the reexport? (The reexport must be removed because otherwise it clashes with glob imports containing `ItemFn`). IMO writing `FnKind::Method` is much clearer than `FkMethod`.
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In order to test the validity of identifiers, exposing the name resolution module is necessary. Other changes mostly comprise of exposing modules publicly like parts of save-analysis, so they can be called appropriately.
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Fixes #22968
Probably fixes #27602 (the issue needs a reproduction)
r? @alexcrichton
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Fixes #22968
Probably fixes #27602
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r? @Manishearth
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Also fixes a few outdated links.
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An implementation of [RFC 1219](https://github.com/rust-lang/rfcs/pull/1219).
The RFC is not merged yet, but once merged, this could be.
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As noted in my previous PR #27439 , the import resolution algorithm has two cases where it bails out:
- The algorithm will delay an import if the module containing the target of the import still has unresolved glob imports
- The algorithm will delay a glob import of the target module still has unresolved imports
This PR alters the behaviour to only bail out when the above described unresolved imports are `pub`, as non-pub imports don't affect the result anyway.
It is still possible to fail the algorithm with examples like
```rust
pub mod a {
pub use b::*;
}
pub mod b {
pub use a::*;
}
```
but such configurations cannot be resolved in any meaningful way, as these are cyclic imports.
Closes #4865
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Also fixes a few outdated links.
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Sets a flag to pass through the rest of the walker.
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Part of #24407.
r? @Manishearth
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When resolving 'use' statements, only consider pub imports of the
target module as blocking.
Closes #4865
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(This is a second try at #26242. This time I think things should be ok.)
The current algorithm handling import resolutions works sequentially, handling imports in the order they appear in the source file, and blocking/bailing on the first one generating an error/being unresolved.
This can lead to situations where the order of the `use` statements can make the difference between "this code compiles" and "this code fails on an unresolved import" (see #18083 for example). This is especially true when considering glob imports.
This PR changes the behaviour of the algorithm to instead try to resolve all imports in a module. If one fails, it is recorded and the next one is tried (instead of directly giving up). Also, all errors generated are stored (and not reported directly).
The main loop of the algorithms guaranties that the algorithm will always finish: if a round of resolution does not resolve anything new, we are stuck and give up. At this point, the new version of the algorithm will display all errors generated by the last round of resolve. This way we are sure to not silence relevant errors or help messages, but also to not give up too early.
**As a consequence, the import resolution becomes independent of the order in which the `use` statements are written in the source files.** I personally don't see any situations where this could be a problem, but this might need some thought.
I passed `rpass` and `cfail` tests on my computer, and now am compiling a full stage2 compiler to ensure the crates reporting errors in my previous attempts still build correctly. I guess once I have checked it, this will need a crater run?
Fixes #18083.
r? @alexcrichton , cc @nrc @brson
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