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It should fix installation via rustup and indicates it's not stable yet
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When encountering `||{}()`, suggest the likely intended `(||{})()`
Fix #55851.
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Refactor tools/build-mainfest
I saw some duplication in https://github.com/rust-lang/rust/pull/58990 and got an itch... Will likely need to be rebased when that lands. Hopefully the PR should have zero semantic changes...
r? @alexcrichton
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Recover from missing comma between enum variants and from bad `pub` kw
Fix #56579. Fix #56473.
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Point at coercion reason for `if` expressions without else clause if caused by return type
```
error[E0317]: if may be missing an else clause
--> $DIR/if-without-else-as-fn-expr.rs:2:5
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LL | fn foo(bar: usize) -> usize {
| ----- found `usize` because of this return type
LL | / if bar % 5 == 0 {
LL | | return 3;
LL | | }
| |_____^ expected (), found usize
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= note: expected type `()`
found type `usize`
= note: `if` expressions without `else` must evaluate to `()`
```
Fix #25228.
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dragonflybsd still uses c_char [2]
[1] https://svnweb.freebsd.org/base/releng/11.2/sys/sys/signal.h?revision=334459&view=markup#l438
[2] https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/sys/signal.h#L339
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Add provided methods `Seek::{stream_len, stream_position}`
This adds two new, provided methods to the `io::Seek` trait:
- `fn stream_len(&mut self) -> Result<u64>`
- `fn stream_position(&mut self) -> Result<u64>`
Both are added for convenience and to improve readability in user code. Reading `file.stream_len()` is much better than to manually seek two or three times. Similarly, `file.stream_position()` is much more clear than `file.seek(SeekFrom::Current(0))`.
You can find prior discussions [in this internals thread](https://internals.rust-lang.org/t/pre-rfc-idea-extend-io-seek-with-convenience-methods-with-e-g-stream-len/9262). I think I addressed all concerns in that thread.
I already wrote three RFCs to add a small new API to libstd but I noticed that many public changes to libstd happen without an RFC. So I figured I can try opening a PR directly without going through RFCs first. After all, we do have rfcbot here too. If you think this change is too big to merge without an RFC, I can still close this PR and write an RFC.
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The pause instruction requires SSE2 but was being unconditionally used
on targets without it, resulting in undefined behavior.
This PR fixes that by only using the pause intrinsic if SSE2 is available.
It also removes the inline assembly which was not required since these
instructions are available in core::arch, and extends support of
the spin_loop hint to arm targets with the v6 feature which also
support the yield instruction.
Closes #59237 .
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Add default keyword handling in rustdoc
Fixes #58898.
r? @QuietMisdreavus
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Add new test case for possible bug in BufReader
When reading a large chunk from a BufReader, if all the bytes from the buffer have been already consumed, the internal buffer is bypassed entirely. However, it is not invalidated, and it's possible to access its contents using the `seek_relative` method, because it tries to reuse the existing buffer.
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Fixes for the generator transform
* Moves cleanup annotations in pretty printed MIR so that they can be tested
* Correctly determines which drops are in cleanup blocks when elaborating generator drops
* Use the correct state for poisoning a generator
Closes #58892
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Rework how bootstrap tools are built
This makes bootstrap tools buildable and testable in stage 0 with the downloaded bootstrap compiler, futhermore, it makes it such that they cannot be built in any other stage.
Notably, this will also mean that compiletest may need to wait a cycle before it can use changes to `libtest`, as it no longer depends on the in-tree libtest.
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This commit adds support code for using `clang` directly to link the
wasm32-unknown-unknown target. Currently the target is only really
configured to link with LLD directly, but this ensures that `clang` can
be configured as well.
While not immediately useful in the near term it's likely that more
wasm32 targets will pop up over time with Clang's new native support for
WebAssembly in the 8.0.0 release. Getting support into rustc early
should make it easier to experiment with these targets and try out
various changes here and there.
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Some where clauses were not subtituted for generic bound type vars.
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