Separate lifetime ident from lifetime resolution in HIR
Drive-by: change how suggested generic args are computed.
Fixes https://github.com/rust-lang/rust/issues/103815
I recommend reviewing commit-by-commit.
fix: check tail expressions more precisely in `extract_function`
Fixes#13620
When extracting expressions with control flows into a function, we can avoid wrapping tail expressions in `Option` or `Result` when they are also tail expressions of the container we're extracting from (see #7840, #9773). This is controlled by `ContainerInfo::is_in_tail`, but we've been computing it by checking if the tail expression of the range to extract is contained in the container's syntactically last expression, which may be a block that contains both tail and non-tail expressions (e.g. in #13620, the range to be extracted is not a tail expression but we set the flag to true).
This PR tries to compute the flag as precise as possible by utilizing `for_each_tail_expr()` (and also moves the flag to `Function` struct as it's more of a property of the function to be extracted than of the container).
Stop peeling the last iteration of the loop in `Vec::resize_with`
`resize_with` uses the `ExtendWith` code that peels the last iteration:
341d8b8a2c/library/alloc/src/vec/mod.rs (L2525-L2529)
But that's kinda weird for `ExtendFunc` because it does the same thing on the last iteration anyway:
341d8b8a2c/library/alloc/src/vec/mod.rs (L2494-L2502)
So this just has it use the normal `extend`-from-`TrustedLen` code instead.
r? `@ghost`
Manually implement PartialEq for Option<T> and specialize non-nullable types
This PR manually implements `PartialEq` and `StructuralPartialEq` for `Option`, which seems to produce slightly better codegen than the automatically derived implementation.
It also allows specializing on the `core::num::NonZero*` and `core::ptr::NonNull` types, taking advantage of the niche optimization by transmuting the `Option<T>` to `T` to be compared directly, which can be done in just two instructions.
A comparison of the original, new and specialized code generation is available [here](https://godbolt.org/z/dE4jxdYsa).
Enable profiler in dist-riscv64-linux
Build the profiler runtime to allow using -C profile-generate and -C instrument-coverage on riscv64-linux.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Encode the variants of `HirFileId` in a u32 with MSB as the tag
This saves 10mb on `self` analysis, while this does limit us to 2billion real files and 2 billion macro expansions, I doubt we will ever hit that limit :) `HirFileId` is used a lot, so going from 8 bytes to 4 is a decent win.
Mega-sync from `rust-lang/rust`
This essentially implements `@oli-obk's` suggestion here https://github.com/rust-lang/rust-analyzer/pull/13459#issuecomment-1297285607, with `@eddyb's` help.
This PR is equivalent to 14 syncs (back and forth) between `rust-lang/rust` and `rust-lang/rust-analyzer`.
Working from this list (from bottom to top):
```
(x) a2a1d9954⬆️ rust-analyzer
(x) 79923c382⬆️ rust-analyzer
(x) c60b1f641⬆️ rust-analyzer
(x) 8807fc4cc⬆️ rust-analyzer
(x) a99a48e78⬆️ rust-analyzer
(x) 4f55ebbd4⬆️ rust-analyzer
(x) f5fde4df4⬆️ rust-analyzer
(x) 459bbb422⬆️ rust-analyzer
(x) 65e1dc4d9⬆️ rust-analyzer
(x) 3e358a682⬆️ rust-analyzer
(x) 31519bb39⬆️ rust-analyzer
(x) 8231fee46⬆️ rust-analyzer
(x) 22c8c9c40⬆️ rust-analyzer
(x) 9d2cb42a4⬆️ rust-analyzer
```
(This listed was assembled by doing a `git subtree push`, which made a branch, and looking at the new commits in that branch, picking only those that were `⬆️ rust-analyzer` commits)
We used the following commands to simulate merges in both directions:
```shell
TO_MERGE=22c8c9c40 # taken from the list above, bottom to top
git merge --no-edit --no-ff $TO_MERGE
git merge --no-edit --no-ff $(git -C ../rust log --pretty=format:'%cN | %s | %ad => %P' | rg -m1 -F "$(git show --no-patch --pretty=format:%ad $TO_MERGE)" | tee /dev/stderr | rg '.* => \S+ (\S+)$' --replace '$1')
```
We encountered no merge conflicts that Git wasn't able to solve by doing it this way.
Here's what the commit graph looks like (as shown in the Git Lens VSCode extension):
<img width="1345" alt="image" src="https://user-images.githubusercontent.com/7998310/203984523-7c1a690a-8224-416c-8015-ed6e49667066.png">
This PR closes#13459
## Does this unbreak `rust->ra` syncs?
Yes, here's how we tried:
In `rust-analyzer`:
* check out `subtree-fix` (this PR's branch)
* make a new branch off of it: `git checkout -b subtree-fix-merge-test`
* simulate this PR getting merged with `git merge master`
In `rust`:
* pull latest master
* make a new branch: `git checkout -b test-change`
* mess with rust-analyzer (I added a comment to `src/tools/rust-analyzer/Cargo.toml`)
* commit
* run `git subtree push -P src/tools/rust-analyzer ra-local final-sync` (this follows the [Clippy sync guide](https://doc.rust-lang.org/nightly/clippy/development/infrastructure/sync.html))
This created a `final-sync` branch in `rust-analyzer`.
In `rust-analyzer`:
* `git merge --no-ff final-sync` (this follows the [Clippy sync guide](https://doc.rust-lang.org/nightly/clippy/development/infrastructure/sync.html))
Now `git log` in `rust-analyzer` shows this:
```
commit 460128387e46ddfc2b95921b2d7f6e913a3d2b9f (HEAD -> subtree-fix-merge-test)
Merge: 0513fc02a 9ce6a734f
Author: Amos Wenger <amoswenger@gmail.com>
Date: Fri Nov 25 13:28:24 2022 +0100
Merge branch 'final-sync' into subtree-fix-merge-test
commit 0513fc02a08ea9de952983624bd0a00e98044b36
Merge: 38c98d1ff6918009fe
Author: Amos Wenger <amoswenger@gmail.com>
Date: Fri Nov 25 13:28:02 2022 +0100
Merge branch 'master' into subtree-fix-merge-test
commit 9ce6a734f37ef8e53689f1c6f427a9efafe846bd (final-sync)
Author: Amos Wenger <amoswenger@gmail.com>
Date: Fri Nov 25 13:26:26 2022 +0100
Mess with rust-analyzer just for fun
```
And `git diff 0513fc02a08ea9de952983624bd0a00e98044b36` shows this:
```patch
diff --git a/Cargo.toml b/Cargo.toml
index 286ef1e7d..c9e24cd19 100644
--- a/Cargo.toml
+++ b/Cargo.toml
`@@` -32,3 +32,5 `@@` debug = 0
# ungrammar = { path = "../ungrammar" }
# salsa = { path = "../salsa" }
+
+# lol, hi
```
## Does this unbreak `ra->rust` syncs?
Yes, here's how we tried.
From `rust`:
* `git checkout -b sync-from-ra`
* `git subtree pull -P src/tools/rust-analyzer ra-local subtree-fix-merge-test` (this is adapted from the [Clippy sync guide](https://doc.rust-lang.org/nightly/clippy/development/infrastructure/sync.html#performing-the-sync-from-clippy-to-rust-langrust), you would normally use `ra-upstream master` but we're simulating things here)
A commit editor pops up, there was no merge conflicts.
## How do we prevent this from happening again?
Like `@bjorn3` said in https://github.com/rust-lang/rust-analyzer/pull/13459#issuecomment-1293587848
> Whenever syncing from rust-analyzer -> rust you have to immediately sync the merge commit from rust -> rust-analyzer to prevent merge conflicts in the future.
But if we get it wrong again, at least now we have a not-so-painful way to fix it.
Build macOS distribution artifacts with XCode 13
After all of the `rust-lang/rust` Apple runners started using macOS 12, the builds created by CI began to use XCode 14.0.1. Due to this (as far as we can tell), XCode's build tools started to ignore the `MACOSX_DEPLOYMENT_TARGET` being defined by us for the distributed builds that let both `rustc` and `libstd` work on older versions. The current idea is that since XCode 14's macOS SDK doesn't support deployment targets before 10.13, it uses some default of its own. You can see the difference between stable's and the most recent nighty's supported versions [here](https://github.com/rust-lang/rust/issues/104570#issuecomment-1321225907).
I wasn't able to confirm my SDK versioning hypothesis locally since I think there's something jammed with my XCode installation, but hopefully this should still fix it for releases.
Closes https://github.com/rust-lang/rust/issues/104570
r? `@Mark-Simulacrum`
Improve goto declaration
Closes https://github.com/rust-lang/rust-analyzer/issues/13599
- goto decl now goes to assoc items of trait declarations over the items of trait implementations
- goto decl now goes to the field declaration (opposed to goto def which shows both the field decl and binding created/local being used)
- also adds back the goto definition fallback that seems to have been dropped at some point.
feat: adds hover hint to ".." in record pattern
Hovering on the "rest" pattern in struct destructuring,
```rust
struct Baz {
a: u32,
b: u32,
c: u32,
d: u32
}
let Baz { a, b, ..$0} = Baz { a: 1, b: 2, c: 3, d: 4 };
```
shows:
```
.., c: u32, d: u32
```
Currently only works with struct patterns.
