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It got merged so fast I didn't have time to make changes xD
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`note_obligation_cause_code`
Most futures don't go through this code path, because they're caught by
`maybe_note_obligation_cause_for_async_await`. But all generators do,
and `maybe_note` is imperfect and doesn't catch all futures. Improve the error message for those it misses.
At some point, we may want to consider unifying this with the code for `maybe_note_async_await`,
so that `async_await` notes all parent constraints, and `note_obligation` can point to yield points.
But both functions are quite complicated, and it's not clear to me how to combine them;
this seems like a good incremental improvement.
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Rollup of 5 pull requests
Successful merges:
- #97803 (Impl Termination for Infallible and then make the Result impls of Termination more generic)
- #97828 (Allow configuring where artifacts are downloaded from)
- #98150 (Emscripten target: replace -g4 with -g, and -g3 with --profiling-funcs)
- #98195 (Fix rustdoc json primitive handling)
- #98205 (Remove a possible unnecessary assignment)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Fix rustdoc json primitive handling
Fixes https://github.com/rust-lang/rust/issues/98006.
cc `@matthiaskrgr`
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Allow configuring where artifacts are downloaded from
Bootstrap has support for downloading prebuilt LLVM and rustc artifacts to speed up local builds, but that currently works only for users working on `rust-lang/rust`. Forks of the repository (for example Ferrocene) might have different URLs to download artifacts from, or might use a different email address on merge commits, breaking both LLVM and rustc artifact downloads.
This PR refactors bootstrap to load the download URLs and other constants from `src/stage0.json`, allowing downstream forks to tweak those values. It also future-proofs the download code to easily allow forks to add their own custom protocols (like `s3://`).
This PR is best reviewed commit-by-commit.
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Impl Termination for Infallible and then make the Result impls of Termination more generic
This allows things like `Result<ExitCode, E>` to 'just work'
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make cenum_impl_drop_cast deny-by-default
Also make it show up as future breakage diagnostic.
In https://github.com/rust-lang/rust/pull/96862 we are proposing to change behavior of those drops *again*, so this looks like a good opportunity to increase our pressure on getting them out of the ecosystem. Looking at the [tracking issue](https://github.com/rust-lang/rust/issues/73333), so far nobody spoke up in favor of this (accidental) feature.
Cc https://github.com/rust-lang/rust/issues/73333 `@oli-obk`
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Do not try to statically link libstdc++ on Solaris
Fixes #97260
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diagnostics: remove trailing spaces
Remove few occurrences of trailing spaces and drive by fix of needless alloc of const string.
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Rollup of 5 pull requests
Successful merges:
- #95392 (std: Stabilize feature try_reserve_2 )
- #97798 (Hide irrelevant lines in suggestions to allow for suggestions that are far from each other to be shown)
- #97844 (Windows: No panic if function not (yet) available)
- #98013 (Subtype FRU fields first in `type_changing_struct_update`)
- #98191 (Remove the rest of unnecessary `to_string`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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r=Dylan-DPC
Remove the rest of unnecessary `to_string`
I removed most of unnecessary `to_string` in #98043. This patch removes the rest of them I missed.
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Subtype FRU fields first in `type_changing_struct_update`
So this fixes a subtle bug that `type_changing_struct_update` introduced, where it'll no longer coerce the base expr correctly. I actually think this code is easier to understand now, too.
r? `@lcnr` since you reviewed the last one
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WaffleLapkin:allow_for_suggestions_that_are_quite_far_away_from_each_other, r=estebank
Hide irrelevant lines in suggestions to allow for suggestions that are far from each other to be shown
This is an attempt to fix suggestions one part of which is 6 lines or more far from the first. I've noticed "the problem" (of not showing some parts of the suggestion) here: https://github.com/rust-lang/rust/pull/97759#discussion_r889689230.
I'm not sure about the implementation (this big closure is just bad and makes already complicated code even more so), but I want to at least discuss the result.
Here is an example of how this changes the output:
Before:
```text
help: consider enclosing expression in a block
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3 ~ 'l: { match () { () => break 'l,
4 |
5 |
6 |
7 |
8 |
...
```
After:
```text
help: consider enclosing expression in a block
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3 ~ 'l: { match () { () => break 'l,
4 |
...
31|
32~ } };
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```
r? `@estebank`
`@rustbot` label +A-diagnostics +A-suggestion-diagnostics
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Split up `Definitions` and `ResolverAstLowering`.
Split off https://github.com/rust-lang/rust/pull/95573
r? `@michaelwoerister`
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Move `finish` out of the `Encoder` trait.
This simplifies things, but requires making `CacheEncoder` non-generic.
(This was previously merged as commit 4 in #94732 and then was reverted
in #97905 because it caused a perf regression.)
r? `@ghost`
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Add rustdoc-json regression test for #98009
Fixes #98009.
There was apparently nothing to be done...
cc `@matthiaskrgr`
r? `@notriddle`
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Do not suggest adding semicolon/changing delimiters for macros in item position that originates in macros
Fixes #91800.
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Improve the tuple and unit trait docs
* Reduce duplicate impls; show only the `(T,)` and include a sentence saying that there exists ones up to twelve of them.
* Show `Copy` and `Clone`.
* Show auto traits like `Send` and `Sync`, and blanket impls like `Any`.
Here's the new version:
* <https://notriddle.com/notriddle-rustdoc-test/std/primitive.tuple.html>
* <https://notriddle.com/notriddle-rustdoc-test/std/primitive.unit.html>
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Rollup of 4 pull requests
Successful merges:
- #97757 (Support lint expectations for `--force-warn` lints (RFC 2383))
- #98125 (Entry and_modify doc)
- #98137 (debuginfo: Fix NatVis for Rc and Arc with unsized pointees.)
- #98147 (Make #[cfg(bootstrap)] not error in proc macros on later stages )
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Make #[cfg(bootstrap)] not error in proc macros on later stages
As was discovered in https://github.com/rust-lang/rust/pull/93628#issuecomment-1154697627,
adding #[cfg(bootstrap)] to a rust-internal proc macro crate
would yield an unexpected cfg name error, at least on later
stages wher the bootstrap cfg arg wasn't set.
rustc already passes arguments to mark bootstrap as expected,
however the means of delivery through the RUSTFLAGS env var
is unable to reach proc macro crates, as described
in the issue linked in the code this commit touches.
This wouldn't be an issue for cfg args that get passed through
RUSTFLAGS, as they would never become *active* either, so
any usage of one of these flags in a proc macro's code would
legitimately yield a lint warning. But since dc30258,
rust takes extra measures to pass --cfg=bootstrap even in
proc macros, by passing it via the wrapper. Thus, we need
to send the flags to mark bootstrap as expected also from the
wrapper, so that #[cfg(bootstrap)] also works from proc macros.
I want to thank `Urgau` and `jplatte` for helping me find the cause of this. :heart:
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r=wesleywiser
debuginfo: Fix NatVis for Rc and Arc with unsized pointees.
Currently, the NatVis for `Rc<T>` and `Arc<T>` does not support unsized `T`. For both `Rc<T>` and `Rc<dyn SomeTrait>` the visualizers fail:
```txt
[Reference count] : -> must be used on pointers and . on structures
[Weak reference count] : -> must be used on pointers and . on structures
```
This PR fixes the visualizers. For slices we can even give show the elements, so one now gets something like:
```txt
slice_rc : { len=3 }
[Length] : 3
[Reference count] : 41
[Weak reference count] : 2
[0] : 1
[1] : 2
[2] : 3
```
r? `@wesleywiser`
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r=wesleywiser,flip1995
Support lint expectations for `--force-warn` lints (RFC 2383)
Rustc has a `--force-warn` flag, which overrides lint level attributes and forces the diagnostics to always be warn. This means, that for lint expectations, the diagnostic can't be suppressed as usual. This also means that the expectation would not be fulfilled, even if a lint had been triggered in the expected scope.
This PR now also tracks the expectation ID in the `ForceWarn` level. I've also made some minor adjustments, to possibly catch more bugs and make the whole implementation more robust.
This will probably conflict with https://github.com/rust-lang/rust/pull/97718. That PR should ideally be reviewed and merged first. The conflict itself will be trivial to fix.
---
r? `@wesleywiser`
cc: `@flip1995` since you've helped with the initial review and also discussed this topic with me. :upside_down_face:
Follow-up of: https://github.com/rust-lang/rust/pull/87835
Issue: https://github.com/rust-lang/rust/issues/85549
Yeah, and that's it.
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This simplifies things, but requires making `CacheEncoder` non-generic.
(This was previously merged as commit 4 in #94732 and then was reverted
in #97905 because it caused a perf regression.)
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r=notriddle,GuillaumeGomez
Rustdoc: Fix stab disappearing and exclude cfg "doc" and "doctest"
Fixes #98065 Context: https://github.com/rust-lang/rust/issues/43781#issuecomment-1154226733
r? `@GuillaumeGomez`
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position that originates in macros
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BTreeMap: Support custom allocators (v1.5)
Related:
https://github.com/rust-lang/wg-allocators/issues/7
https://github.com/TimDiekmann/alloc-wg
Blocked on:
~~#77187~~
~~#78459~~
~~#95036~~
previous: #77438
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Add regression test for #93775
Closes #93775, also closes #93022 as it should have the same root cause
r? ```@compiler-errors```
Signed-off-by: Yuki Okushi <jtitor@2k36.org>
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Refactor path segment parameter error
This PR attempts to rewrite the error handling for an unexpected parenthesised type parameters to:
- Use provided data instead of re-parsing the whole span
- Add a multipart suggestion to reflect on the changes with an underline
- Remove the unnecessary "if" nesting
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r=notriddle
Fix sidebar items expand collapse
The collapse/expand event was not working for the items in the source code viewer sidebar (talking about these items:
).
This PR fixes it and adds a GUI test to prevent another regression.
r? ```@notriddle```
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Fix generic impl rustdoc json output
Fixes #97986.
The problem in case of generic trait impl is that the trait's items are the same for all the types afterward. But since they're the same, it's safe for rustdoc-json to just ignore them.
A little representation of what's going on:
```rust
trait T {
fn f(); // <- defid 0
}
impl<Y> T for Y {
fn f() {} // <- defid 1
}
struct S; // <- defid 1 (since it matches `impl<Y> T for Y`
```
cc ```@Urgau```
r? ```@CraftSpider```
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r=compiler-errors
Fix suggestions for `&a: T` parameters
I've accidentally discovered that we have broken suggestions for `&a: T` parameters:
```rust
fn f(&mut bar: u32) {}
fn main() {
let _ = |&mut a| ();
}
```
```text
error[E0308]: mismatched types
--> ./t.rs:1:6
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1 | fn f(&mut bar: u32) {}
| ^^^^^^^^-----
| | |
| | expected due to this
| expected `u32`, found `&mut _`
| help: did you mean `bar`: `&u32`
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= note: expected type `u32`
found mutable reference `&mut _`
error[E0308]: mismatched types
--> ./t.rs:4:23
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4 | let _: fn(u32) = |&mut a| ();
| ^^^^^--
| | |
| | expected due to this
| expected `u32`, found `&mut _`
| help: did you mean `a`: `&u32`
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= note: expected type `u32`
found mutable reference `&mut _`
```
It's hard to see, but
1. The help span is overlapping with "expected" spans
2. It suggests `fn f( &u32) {}` (no `mut` and lost parameter name) and `|&u32 ()` (no closing `|` and lost parameter name)
I've tried to fix this.
r? ``@compiler-errors``
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As was discovered in https://github.com/rust-lang/rust/pull/93628#issuecomment-1154697627 ,
adding #[cfg(bootstrap)] to a rust-internal proc macro crate
would yield an unexpected cfg name error, at least on later
stages wher the bootstrap cfg arg wasn't set.
rustc already passes arguments to mark bootstrap as expected,
however the means of delivery through the RUSTFLAGS env var
is unable to reach proc macro crates, as described
in the issue linked in the code this commit touches.
This wouldn't be an issue for cfg args that get passed through
RUSTFLAGS, as they would never become *active* either, so
any usage of one of these flags in a proc macro's code would
legitimately yield a lint warning. But since dc302587e2cf5105a3a864319d7e7bcb434bba20,
rust takes extra measures to pass --cfg=bootstrap even in
proc macros, by passing it via the wrapper. Thus, we need
to send the flags to mark bootstrap as expected also from the
wrapper, so that #[cfg(bootstrap)] also works from proc macros.
I want to thank Urgau and jplatte for helping me find the cause of this. ❤️
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[RFC 2011] Minimal initial implementation
Tracking issue: #44838
Third step of #96496
Implementation has ~290 LOC with the bare minimum to be in a functional state. Currently only searches for binary operations to mimic what `assert_eq!` and `assert_ne!` already do.
r? `@oli-obk`
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