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Rollup of 6 pull requests
Successful merges:
- #128990 (Re-enable more debuginfo tests on freebsd)
- #129042 (Special-case alias ty during the delayed bug emission in `try_from_lit`)
- #129086 (Stabilize `is_none_or`)
- #129149 (Migrate `validate_json.py` script to rust in `run-make/rustdoc-map-file` test)
- #129154 (Fix wrong source location for some incorrect macro definitions)
- #129161 (Stabilize std::thread::Builder::spawn_unchecked)
r? `@ghost`
`@rustbot` modify labels: rollup
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Fix wrong source location for some incorrect macro definitions
Fixes #95463
Currently the code will consume the next token tree after `var` when trying to parse `$var:some_type` even when it's not a `:` (e.g. a `$` when input is `($foo $bar:tt) => {}`). Additionally it will return the wrong span when it's not a `:`.
This PR fixes these problems.
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Migrate `validate_json.py` script to rust in `run-make/rustdoc-map-file` test
This PR fixes the FIXME I added for future-me who become present-me. :')
Since there are multiple `run-make` tests using python scripts, I suppose more of them will migrate to Rust, hence why I added the `jzon` public reexport to the `run-make-support` crate.
cc `@jieyouxu`
r? `@Kobzol`
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Special-case alias ty during the delayed bug emission in `try_from_lit`
This PR tries to fix #116308.
A delayed bug in `try_from_lit` will not be emitted so that the compiler will not ICE when it sees the pair `(ast::LitKind::Int, ty::TyKind::Alias)` in `lit_to_const` (called from `try_from_lit`).
This PR is related to an unstable feature `adt_const_params` (#95174).
r? ``@BoxyUwU``
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`run-make` tests
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Enable debuginfo tests that have been "temporarily disabled" for the past 6 years
The PR history is a bit of a mess because I had to test this a lot with try-jobs, so I'll try to summarize the non-obvious changes here.
A number of tests now have `min-lldb-version: 1800`. Those tests should have gotten an lldb version jump either in https://github.com/rust-lang/rust/pull/124781 or long ago. Note that all such tests with that lldb version requirement do not run in Apple CI.
`tests/debuginfo/drop-locations.rs` is staying disabled for now because gdb doesn't know to stop on the drop calls produced by a `}`: https://github.com/rust-lang/rust/issues/128971
`tests/debuginfo/function-arg-initialization.rs` now has `-Zmir-enable-passes=-SingleUseConsts`; without that we initialize the const before the function prelude: https://github.com/rust-lang/rust/issues/128945
`tests/debuginfo/by-value-non-immediate-argument.rs` fails because we don't generate a function prelude for unused non-immediate arguments, even with all optimizations disabled, and this seems to confuse debuggers on aarch64: https://github.com/rust-lang/rust/issues/128973
`tests/debuginfo/pretty-std.rs` is staying disabled on windows-gnu because our test harness doesn't know how to load our pretty-printers on that target: https://github.com/rust-lang/rust/issues/128981
`tests/debuginfo/method-on-enum.rs` and `tests/debuginfo/option-like-enum.rs` encounter some kind of gdb bug on i686-pc-windows-gnu. I don't know enough about that situation to write a good issue.
I plan on doing more work on this test suite. There's clearly a lot more basic cleanup work to do here.
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Rollup of 9 pull requests
Successful merges:
- #128064 (Improve docs for Waker::noop and LocalWaker::noop)
- #128922 (rust-analyzer: use in-tree `pattern_analysis` crate)
- #128965 (Remove `print::Pat` from the printing of `WitnessPat`)
- #129018 (Migrate `rlib-format-packed-bundled-libs` and `native-link-modifier-bundle` `run-make` tests to rmake)
- #129037 (Port `run-make/libtest-json` and `run-make/libtest-junit` to rmake)
- #129078 (`ParamEnvAnd::fully_perform`: we have an `ocx`, use it)
- #129110 (Add a comment explaining the return type of `Ty::kind`.)
- #129111 (Port the `sysroot-crates-are-unstable` Python script to rmake)
- #129135 (crashes: more tests)
r? `@ghost`
`@rustbot` modify labels: rollup
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r=compiler-errors
crashes: more tests
r? ````@jieyouxu````
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Port the `sysroot-crates-are-unstable` Python script to rmake
New version of #126231, and a follow-up to #129071.
One major difference is that the new version no longer tries to report *all* accidentally-stable crates, because the `run_make_support` helpers tend to halt the test as soon as something goes wrong. That's unfortunate, but I think it won't matter much in practice, and preserving the old behaviour doesn't seem worth the extra effort.
---
Part of #110479 (Python purge), with this being one of the non-trivial Python scripts that actually seems feasible and worthwhile to remove.
This is *not* part of #121876 (Makefile purge), because the underlying test is already using rmake; this PR just modifies the existing rmake recipe to do all the work itself instead of delegating to Python. So there's no particular urgency here.
r? ````@jieyouxu````
try-job: aarch64-gnu
try-job: aarch64-apple
try-job: test-various
try-job: armhf-gnu
try-job: x86_64-msvc
try-job: i686-mingw
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Port `run-make/libtest-json` and `run-make/libtest-junit` to rmake
Unlike #126773, this is just a straightforward port to `rmake`, without attempting to switch to compiletest or get rid of the (trivial) Python scripts.
Part of #121876.
r? ````@jieyouxu````
try-job: x86_64-msvc
try-job: i686-mingw
try-job: test-various
try-job: aarch64-gnu
try-job: aarch64-apple
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Migrate `rlib-format-packed-bundled-libs` and `native-link-modifier-bundle` `run-make` tests to rmake
Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
Please try:
// try-job: test-various (ATTEMPTED: IGNORE RESTORED)
try-job: x86_64-msvc
try-job: aarch64-apple
try-job: aarch64-gnu
try-job: x86_64-mingw
try-job: i686-mingw
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r=petrochenkov
Fix problems with assoc expr token collection
There are several cases involving assoc exprs and attributes where the current code does the wrong thing. This PR adds some tests that demonstrate the problems and then fixes them.
r? `@petrochenkov`
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This commit does the following.
- Renames `collect_tokens_trailing_token` as `collect_tokens`, because
(a) it's annoying long, and (b) the `_trailing_token` bit is less
accurate now that its types have changed.
- In `collect_tokens`, adds a `Option<CollectPos>` argument and a
`UsePreAttrPos` in the return type of `f`. These are used in
`parse_expr_force_collect` (for vanilla expressions) and in
`parse_stmt_without_recovery` (for two different cases of expression
statements). Together these ensure are enough to fix all the problems
with token collection and assoc expressions. The changes to the
`stringify.rs` test demonstrate some of these.
- Adds a new test. The code in this test was causing an assertion
failure prior to this commit, due to an invalid `NodeRange`.
The extra complexity is annoying, but necessary to fix the existing
problems.
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A couple of these are marked `FIXME` because they demonstrate existing
bugs with token collection.
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Coalesce `dep-info`, `dep-info-spaces` and `dep-info-doesnt-run-much` `run-make` tests into `dep-info` rmake.rs
Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
This is one of the most ancient tests in the `run-make` directory and its Makefile does some unexpected things, like creating and deleting a `done` directory over and over, sleeping at certain times (this is the [commit](https://github.com/rust-lang/rust/pull/13288/commits/0d9fd8e2a1f8aa43b4cf66272eaa3cf695bbdcd9) that added the `sleep`).
I tried to preserve the intent of the test, which is smoke-testing that `dep-info` works.
try-job: x86_64-msvc
try-job: i686-mingw
try-job: aarch64-gnu
try-job: aarch64-apple
try-job: test-various
try-job: armhf-gnu
try-job: dist-various-1
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GuillaumeGomez:remove-duplicated-rustdoc-output-methods, r=Kobzol
Remove duplicated `Rustdoc::output` method from `run-make-support` lib
I discovered recently that `--output` is deprecated in rustdoc and that `--out-dir` is doing the exact same thing. To keep things along with the current rustdoc status, I removed the `Rustdoc::output` method.
cc `@jieyouxu`
r? `@Kobzol`
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Fix projections when parent capture is by-ref but child capture is by-value in the `ByMoveBody` pass
This fixes a somewhat strange bug where we build the incorrect MIR in #129074. This one is weird, but I don't expect it to actually matter in practice since it almost certainly results in a move error in borrowck. However, let's not ICE.
Given the code:
```
#![feature(async_closure)]
// NOT copy.
struct Ty;
fn hello(x: &Ty) {
let c = async || {
*x;
//~^ ERROR cannot move out of `*x` which is behind a shared reference
};
}
fn main() {}
```
The parent coroutine-closure captures `x: &Ty` by-ref, resulting in an upvar of `&&Ty`. The child coroutine captures `x` by-value, resulting in an upvar of `&Ty`. When constructing the by-move body for the coroutine-closure, we weren't applying an additional deref projection to convert the parent capture into the child capture, resulting in an type error in assignment, which is a validation ICE.
As I said above, this only occurs (AFAICT) in code that eventually results in an error, because it is only triggered by HIR that attempts to move a non-copy value out of a ref. This doesn't occur if `Ty` is `Copy`, since we'd instead capture `x` by-ref in the child coroutine.
Fixes #129074
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compiler-errors:more-powerful-async-closure-inference, r=lcnr
Infer async closure args from `Fn` bound even if there is no corresponding `Future` bound on return
In #127482, I implemented the functionality to infer an async closure signature when passed into a function that has `Fn` + `Future` where clauses that look like:
```
fn whatever(callback: F)
where
F: Fn(Arg) -> Fut,
Fut: Future<Output = Out>,
```
However, #127781 demonstrates that this is still incomplete to address the cases users care about. So let's not bail when we fail to find a `Future` bound, and try our best to just use the args from the `Fn` bound if we find it. This is *fine* since most users of closures only really care about the *argument* types for inference guidance, since we require the receiver of a `.` method call to be known in order to probe methods.
When I experimented with programmatically rewriting `|| async {}` to `async || {}` in #127827, this also seems to have fixed ~5000 regressions (probably all coming from usages `TryFuture`/`TryStream` from futures-rs): the [before](https://github.com/rust-lang/rust/pull/127827#issuecomment-2254061733) and [after](https://github.com/rust-lang/rust/pull/127827#issuecomment-2255470176) crater runs.
Fixes #127781.
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dingxiangfei2009:allow-shadow-call-stack-sanitizer, r=tmandry
Unconditionally allow shadow call-stack sanitizer for AArch64
It is possible to do so whenever `-Z fixed-x18` is applied.
cc ``@Darksonn`` for context
The reasoning is that, as soon as reservation on `x18` is forced through the flag `fixed-x18`, on AArch64 the option to instrument with [Shadow Call Stack sanitizer](https://clang.llvm.org/docs/ShadowCallStack.html) is then applicable regardless of the target configuration.
At the every least, we would like to relax the restriction on specifically `aarch64-unknonw-none`. For this option, we can include a documentation change saying that users of compiled objects need to ensure that they are linked to runtime with Shadow Call Stack instrumentation support.
Related: #121972
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Support reading thin archives in ArArchiveBuilder
And switch to using ArArchiveBuilder with the LLVM backend too now that all regressions are fixed.
Fixes https://github.com/rust-lang/rust/issues/107407
Fixes https://github.com/rust-lang/rust/issues/107162
https://github.com/rust-lang/rust/issues/107495 has been fixed in a previous PR already.
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Rework MIR inlining debuginfo so function parameters show up in debuggers.
Line numbers of multiply-inlined functions were fixed in #114643 by using a single DISubprogram. That, however, triggered assertions because parameters weren't deduplicated. The "solution" to that in #115417 was to insert a DILexicalScope below the DISubprogram and parent all of the parameters to that scope. That fixed the assertion, but debuggers (including gdb and lldb) don't recognize variables that are not parented to the subprogram itself as parameters, even if they are emitted with DW_TAG_formal_parameter.
Consider the program:
```rust
use std::env;
#[inline(always)]
fn square(n: i32) -> i32 {
n * n
}
#[inline(never)]
fn square_no_inline(n: i32) -> i32 {
n * n
}
fn main() {
let x = square(env::vars().count() as i32);
let y = square_no_inline(env::vars().count() as i32);
println!("{x} == {y}");
}
```
When making a release build with debug=2 and rustc 1.82.0-nightly (8b3870784 2024-08-07)
```
(gdb) r
Starting program: /ephemeral/tmp/target/release/tmp [Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Breakpoint 1, tmp::square () at src/main.rs:5
5 n * n
(gdb) info args
No arguments.
(gdb) info locals
n = 31
(gdb) c
Continuing.
Breakpoint 2, tmp::square_no_inline (n=31) at src/main.rs:10
10 n * n
(gdb) info args
n = 31
(gdb) info locals
No locals.
```
This issue is particularly annoying because it removes arguments from stack traces.
The DWARF for the inlined function looks like this:
```
< 2><0x00002132 GOFF=0x00002132> DW_TAG_subprogram
DW_AT_linkage_name _ZN3tmp6square17hc507052ff3d2a488E
DW_AT_name square
DW_AT_decl_file 0x0000000f /ephemeral/tmp/src/main.rs
DW_AT_decl_line 0x00000004
DW_AT_type 0x00001a56<.debug_info+0x00001a56>
DW_AT_inline DW_INL_inlined
< 3><0x00002142 GOFF=0x00002142> DW_TAG_lexical_block
< 4><0x00002143 GOFF=0x00002143> DW_TAG_formal_parameter
DW_AT_name n
DW_AT_decl_file 0x0000000f /ephemeral/tmp/src/main.rs
DW_AT_decl_line 0x00000004
DW_AT_type 0x00001a56<.debug_info+0x00001a56>
< 4><0x0000214e GOFF=0x0000214e> DW_TAG_null
< 3><0x0000214f GOFF=0x0000214f> DW_TAG_null
```
That DW_TAG_lexical_block inhibits every debugger I've tested from recognizing 'n' as a parameter.
This patch removes the additional lexical scope. Parameters can be easily deduplicated by a tuple of their scope and the argument index, at the trivial cost of taking a Hash + Eq bound on DIScope.
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Use the `enum2$` Natvis visualiser for repr128 C-style enums
Use the preexisting `enum2$` Natvis visualiser to allow PDB debuggers to display fieldless `#[repr(u128)]]`/`#[repr(i128)]]` enums correctly.
Tracking issue: #56071
try-job: x86_64-msvc
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Add possibility to generate rustdoc JSON output to stdout
Fixes #127165.
I think it's likely common to want to get rustdoc json output directly instead of reading it from a file so I added this option to allow it. It's unstable and only works with `--output-format=json`.
r? `@aDotInTheVoid`
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r=compiler-errors
derive(SmartPointer): register helper attributes
Fix #128888
This PR enables built-in macros to register helper attributes, if any, to support correct name resolution in the correct lexical scope under the macros.
Also, `#[pointee]` is moved into the scope under `derive(SmartPointer)`.
cc `@Darksonn` `@davidtwco`
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Add powerpc-unknown-linux-muslspe compile target
This is almost identical to already existing targets:
- powerpc_unknown_linux_musl.rs
- powerpc_unknown_linux_gnuspe.rs
It has support for PowerPC SPE (muslspe), which
can be used with GCC version up to 8. It is useful for Freescale or IBM cores like e500.
This was verified to be working with OpenWrt build system for CZ.NIC's Turris 1.x routers, which are using Freescale P2020, e500v2, so add it as a Tier 3 target.
Follow-up of https://github.com/rust-lang/rust/pull/100860
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CommandExt::before_exec: deprecate safety in edition 2024
Similar to `set_var`, we had to find out after 1.0 was released that `before_exec` should have been unsafe. We partially rectified this by deprecating that function a long time ago, but since https://github.com/rust-lang/rust/pull/124636 we have the ability to also deprecate the safety of the old function and make it a *hard error* to call the old function outside `unsafe` in the next edition. So just in case anyone still uses the old function, let's ensure this can't be ignored when moving code to the new edition.
Cc `@rust-lang/libs-api`
Tracking:
- https://github.com/rust-lang/rust/issues/124866
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Future bound
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Migrate `min-global-align` and `no-alloc-shim` `run-make` tests to rmake
Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
Please try:
try-job: aarch64-apple
try-job: test-various
try-job: armhf-gnu
try-job: aarch64-gnu
try-job: aarch64-gnu
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Port `run-make/sysroot-crates-are-unstable` to rmake
I already have a more elaborate draft at #126231 that tries to port the underlying Python script to rmake, but there's no need for the removal of Makefiles to be held up on complex tasks like that, so this PR simply takes the trivial Makefile and converts it into a trivial rmake recipe.
Part of #121876.
r? ``@jieyouxu``
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Record the correct target type when coercing fn items/closures to pointers
Self-explanatory. We were previously not recording the *target* type of a coercion as the output of an adjustment. This should remedy that.
We must also modify the function pointer casts in MIR typeck to use subtyping, since those broke since #118247.
r? lcnr
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Explicitly specify type parameter on FromResidual for Option and ControlFlow.
~~Remove type parameter default `R = <Self as Try>::Residual` from `FromResidual`~~ _Specify default type parameter on `FromResidual` impls in the stdlib_ to work around https://github.com/rust-lang/rust/issues/99940 / https://github.com/rust-lang/rust/issues/87350 ~~as mentioned in https://github.com/rust-lang/rust/issues/84277#issuecomment-1773259264~~.
This does not completely fix the issue, but works around it for `Option` and `ControlFlow` specifically (`Result` does not have the issue since it already did not use the default parameter of `FromResidual`).
~~(Does this need an ACP or similar?)~~ ~~This probably needs at least an FCP since it changes the API described in [the RFC](https://github.com/rust-lang/rfcs/pull/3058). Not sure if T-lang, T-libs-api, T-libs, or some combination (The tracking issue is tagged T-lang, T-libs-api).~~ This probably doesn't need T-lang input, since it is not changing the API of `FromResidual` from the RFC? Maybe needs T-libs-api FCP?
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Stabilize `asm_const`
tracking issue: https://github.com/rust-lang/rust/issues/93332
reference PR: https://github.com/rust-lang/reference/pull/1556
this will probably require some CI wrangling (and a rebase), so let's get that over with even though the final required PR is not merged yet.
r? `@ghost`
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