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Use measureme in self profiler
r? @michaelwoerister
~Changes are still very rough.~
~I'm not sure what the right way to add the `measureme` dependency is. Currently it's just added with a relative path which Works On My Machine ™️.~
I'm also not sure what to do with the category data.
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Rollup of 8 pull requests
Successful merges:
- #59781 (Remove check_match from const_eval)
- #59820 (proc_macro: stop using LEB128 for RPC.)
- #59846 (clarify what the item is in "not a module" error)
- #59847 (Error when using `catch` after `try`)
- #59859 (Suggest removing `?` to resolve type errors.)
- #59862 (Tweak unstable diagnostic output)
- #59866 (Recover from missing semicolon based on the found token)
- #59892 (Impl RawFd conversion traits for WASI TcpListener, TcpStream and UdpSocket)
Failed merges:
r? @ghost
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As mentioned in
https://github.com/rust-lang/rust/issues/46006#issuecomment-345260633
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Related to #58372
Related to #58967
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Update submodules (Clippy, RLS)
Basically https://github.com/rust-lang/rust/pull/59916 with one fix applied to make it build
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Impl RawFd conversion traits for WASI TcpListener, TcpStream and UdpSocket
r? @alexcrichton
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Recover from missing semicolon based on the found token
When encountering one of a few keywords when a semicolon was
expected, suggest the semicolon and recover:
```
error: expected one of `.`, `;`, `?`, or an operator, found `let`
--> $DIR/recover-missing-semi.rs:4:5
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LL | let _: usize = ()
| - help: missing semicolon here
LL |
LL | let _ = 3;
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error[E0308]: mismatched types
--> $DIR/recover-missing-semi.rs:2:20
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LL | let _: usize = ()
| ^^ expected usize, found ()
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= note: expected type `usize`
found type `()`
```
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Tweak unstable diagnostic output
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Suggest removing `?` to resolve type errors.
Fixes #59756.
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Error when using `catch` after `try`
Part of https://github.com/rust-lang/rust/issues/31436
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clarify what the item is in "not a module" error
The motivation here was that I was trying to import an associated constant when I thought it was an enum variant, and got confused by this error.
Ideally I would like to add a note saying that associated constants, types, and methods cannot be imported, but I'm not sure that the associated items for a `Def` can be checked at resolve time.
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proc_macro: stop using LEB128 for RPC.
I'm not sure how much of an improvement this creates, it's pretty tricky to measure.
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Remove check_match from const_eval
This fixes #59378.
It seems that the `check_match` may be unnecessary, so this removes it per instructions provided in the issue. I re-ran the tests for `librustc_mir` and everything seemed fine!
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This implements RFC 2480:
* https://github.com/rust-lang/rfcs/pull/2480
* https://github.com/rust-lang/rfcs/blob/master/text/2480-liballoc.md
Closes https://github.com/rust-lang/rust/issues/27783
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Final (one can only hope) futures_api adjustments
Based on https://github.com/rust-lang/rust/pull/59119 -- this change is only the latter two commits.
cc https://github.com/rust-lang/rust/issues/59725
r? @withoutboats
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Add discr_index to multi-variant layouts
We remove the assumption that the discriminant is always field 0, in
preparations for layouts like generators where this is not (always) going to be
the case.
Specifically, upvars are going to go before the discriminant. In theory, it's possible to remove _that_ assumption instead and keep the discriminant at field index 0, but one assumption or the other had to go :)
There is one place I know of in the debuginfo code where we'll still need to remove assumptions that the discriminant is the _only_ field. I was planning on doing this along with the upcoming generator change, which will also include tests that exercise the code changing in this PR.
r? @eddyb
cc @oli-obk
cc @cramertj
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Rollup of 15 pull requests
Successful merges:
- #59680 (Document the -Z flag to the rustc book)
- #59711 (Add back the substring test)
- #59806 (compiletest: Improve no_prefer_dynamic docs)
- #59809 (Make trait_methods_not_found use a lock)
- #59811 (Kill dead code dominator code.)
- #59814 (Fix broken links on std::boxed doc page)
- #59821 (improve unknown enum variant errors)
- #59831 (Remove strange formatting in `Ordering` docs.)
- #59836 (std::ops::Div examples: correct nominator to numerator)
- #59857 (SGX target: fix cfg(test) build)
- #59876 (Update TRPL to use mdbook 0.2)
- #59880 (Remove note about transmute for float bitpatterns.)
- #59889 (Update diagnostics.rs)
- #59891 (Fix the link to sort_by_cached_key)
- #59894 (save-analysis: Pull associated type definition using `qpath_def`)
Failed merges:
r? @ghost
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This is result of squashing two revert commits:
Revert "compile all crates under test w/ -Zemit-stack-sizes"
This reverts commit 7d365cf27f4249fc9b61ba8abfc813abe43f1cb7.
Revert "bootstrap: build compiler-builtins with -Z emit-stack-sizes"
This reverts commit 8b8488ce8fc047282e7159343f30609417f9fa39.
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save-analysis: Pull associated type definition using `qpath_def`
Closes https://github.com/rust-lang/rls/issues/1390
This (probably?) fixes the case where we run the save-analysis code on the following snippet:
```rust
trait Test<'a> {
type Thing: Test2;
}
trait Test2 {
fn print();
}
#[allow(unused)]
fn example<T>(t: T)
where T: for<'a> Test<'a>
{
T::Thing::print(); //~ ERROR cannot extract an associated type from a higher-ranked trait bound in this context
// ^ only errors in save-analysis mode
}
```
The chain is as follows:
- culprit is `hir_ty_to_ty`
- which calls `ast_ty_to_ty` in the `ItemCtxt`
- which calls `associated_path_to_ty`
- which finally fails on `projected_ty_from_poly_trait_ref`
https://github.com/rust-lang/rust/blob/3de0106789468b211bcc3a25c09c0cf07119186d/src/librustc_typeck/collect.rs#L212-L224
I'm not exactly sure why `hir_ty_to_ty` fails - is it because it needs more setup from typeck to work correctly? I'm guessing the fix is okay since we just pull the already typeck'd data (we run save-analysis after all the analysis passes are complete) from the tables.
With this change we can 'go to def' on all segments in the `T::Thing::print()` path.
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Update diagnostics.rs
Add `a` and other minor text improvements
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Remove note about transmute for float bitpatterns.
This particular usecase has been safely abstracted in these `std` functions: [f32::to_bits](https://doc.rust-lang.org/std/primitive.f32.html#method.to_bits), [f32::from_bits](https://doc.rust-lang.org/std/primitive.f32.html#method.from_bits), [f64::to_bits](https://doc.rust-lang.org/std/primitive.f64.html#method.to_bits), [f64::from_bits](https://doc.rust-lang.org/std/primitive.f64.html#method.from_bits). So, I think we shouldn't recommend an unnecessary use of `unsafe` here anymore.
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Update TRPL to use mdbook 0.2
I ran linkchecker locally and it passed. Let's see if I did it correctly...
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SGX target: fix cfg(test) build
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std::ops::Div examples: correct nominator to numerator
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Remove strange formatting in `Ordering` docs.
I can't really fathom what the intent of the brackets is. The [original PR](#12956) doesn't give any hints. I think it seems fine without them.
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improve unknown enum variant errors
Fixes #56517.
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Fix broken links on std::boxed doc page
r? @QuietMisdreavus
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Kill dead code dominator code.
Hi,
Whilst fiddling around in the dominator code, I found some (I think) unused code. This code *was* used at the time it was imported, but over time it seems to have become redundant.
I've tested a build up to stage 1 with no problems. Maybe the tests will turn up something though.
P.S.
There is a FIXME comment in `dominators/mod.rs`:
```
pub fn is_dominated_by(&self, node: Node, dom: Node) -> bool {
// FIXME -- could be optimized by using post-order-rank
self.dominators(node).any(|n| n == dom)
}
```
I'm not sure of the intention of this comment. The `Dominators` struct already operates over post-order rank nodes. Any ideas?
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Make trait_methods_not_found use a lock
r? @estebank
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compiletest: Improve no_prefer_dynamic docs
This adds some extra docs for the `no-prefer-dynamic` header.
And also a `s/must_compile_successfully/compile_pass`.
`must_compile_successfully` has been renamed to `compile_pass` at some
point in the past and this comment was still referring to the old name.
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Add back the substring test
Fixes #58331.
r? @QuietMisdreavus
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Document the -Z flag to the rustc book
# Description
Changes:
- Added new documentation on the `-Z` flag of rustc in the command-line arguments section of the rustc book.
If I need to rephrase anything or if you have any improvements, please let me know! I deliberately did not create an exhaustive list of all options since they are likely to change over time and per toolchain version.
closes #41142
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Ensure that exact matches come first in rustdoc search
Fixes #59287.
cc @scottmcm
r? @QuietMisdreavus
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This uplifts `get_def_path` from Clippy. This is a follow up on the
implementation of internal lints: #59316
The internal lint implementation also copied the implementation of the
`AbsolutePathPrinter`. To get rid of this code duplication this also
uplifts the `get_def_path` function from Clippy.
This also renames `match_path` to `match_def_path`, as it was originally
named in Clippy.
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Introduce an arena type which may be used to allocate a list of types with destructors
You can also specify that you want deserializers for `&'tcx [T]` and `&'tcx T` for a type in the list, which will allocate those using the arena.
Based on https://github.com/rust-lang/rust/pull/59517 and https://github.com/rust-lang/rust/pull/59533. Look at the last commit for the interesting changes.
An alternative to https://github.com/rust-lang/rust/pull/56448. cc @michaelwoerister @eddyb
r? @oli-obk
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get_mut allows us to abstract over the implementation detail of inner being
optional.
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musl: do not compress debug section
This should be beta nominated.
Fixes https://github.com/rust-lang/rust/issues/59411 (this time for real).
Test with `DEPLOY=1 ./src/ci/docker/run.sh dist-x86_64-musl`, without `DEPLOY=1` libs are built without debuginfo.
r? @alexcrichton
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