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they don't detect any bugs in the search graph. We instead check
for these via `search_graph_fuzz`.
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fix it
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Rollup of 8 pull requests
Successful merges:
- #136542 ([`compiletest`-related cleanups 4/7] Make the distinction between root build directory vs test suite specific build directory in compiletest less confusing)
- #136579 (Fix UB in ThinVec::flat_map_in_place)
- #136688 (require trait impls to have matching const stabilities as the traits)
- #136846 (Make `AssocOp` more like `ExprKind`)
- #137304 (add `IntoBounds::intersect` and `RangeBounds::is_empty`)
- #137455 (Reuse machinery from `tail_expr_drop_order` for `if_let_rescope`)
- #137480 (Return unexpected termination error instead of panicing in `Thread::join`)
- #137694 (Spruce up `AttributeKind` docs)
r? `@ghost`
`@rustbot` modify labels: rollup
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Provide a better suggestion message, and make the suggestion verbose.
```
error[E0703]: invalid ABI: found `riscv-interrupt`
--> $DIR/riscv-discoverability-guidance.rs:17:8
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LL | extern "riscv-interrupt" fn isr() {}
| ^^^^^^^^^^^^^^^^^ invalid ABI
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= note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions
help: there's a similarly named valid ABI `"riscv-interrupt-m"`
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LL | extern "riscv-interrupt-m" fn isr() {}
| ++
```
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Signed-off-by: 11happy <soni5happy@gmail.com>
rebase
Signed-off-by: 11happy <soni5happy@gmail.com>
fix: rebless
Signed-off-by: 11happy <soni5happy@gmail.com>
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Don't infer attributes of virtual calls based on the function body
Fixes (after backport) #137646.
Since we don't know the exact implementation of the virtual call, it might write to parameters, we can't infer the readonly attribute.
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Note: there was an existing code path involving `Interpolated` in
`MetaItem::from_tokens` that was dead. This commit transfers that to the
new form, but puts an `unreachable!` call inside it.
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The one notable test change is `tests/ui/macros/trace_faulty_macros.rs`.
This commit removes the complicated `Interpolated` handling in
`expected_expression_found` that results in a longer error message. But
I think the new, shorter message is actually an improvement.
The original complaint was in #71039, when the error message started
with "error: expected expression, found `1 + 1`". That was confusing
because `1 + 1` is an expression. Other than that, the reporter said
"the whole error message is not too bad if you ignore the first line".
Subsequently, extra complexity and wording was added to the error
message. But I don't think the extra wording actually helps all that
much. In particular, it still says of the `1+1` that "this is expected
to be expression". This repeats the problem from the original complaint!
This commit removes the extra complexity, reverting to a simpler error
message. This is primarily because the traversal is a pain without
`Interpolated` tokens. Nonetheless, I think the error message is
*improved*. It now starts with "expected expression, found `pat`
metavariable", which is much clearer and the real problem. It also
doesn't say anything specific about `1+1`, which is good, because the
`1+1` isn't really relevant to the error -- it's the `$e:pat` that's
important.
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instead, we can just import the intrinsics from core
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Reuse machinery from `tail_expr_drop_order` for `if_let_rescope`
Namely, it defines its own `extract_component_with_significant_dtor` which is a bit more accurate than `Ty::has_significant_drop`, since it has a hard-coded list of types from the ecosystem which are opted out of the lint.[^a]
Also, since we extract the dtors themselves, adopt the same *label* we use in `tail_expr_drop_order` to point out the destructor impl. This makes it much clear what's actually being dropped, so it should be clearer to know when it's a false positive.
This conflicts with #137444, but I will rebase whichever lands first.
[^a]: Side-note, it's kinda a shame that now there are two functions that presumably do the same thing. But this isn't my circus, nor are these my monkeys.
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add `IntoBounds::intersect` and `RangeBounds::is_empty`
- ACP: https://github.com/rust-lang/libs-team/issues/539
- Tracking issue for `is_empty`: #137300
- Tracking issue for `IntoBounds`: #136903
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raw-dylib is a link kind that allows rustc to link against a library
without having any library files present.
This currently only exists on Windows. rustc will take all the symbols
from raw-dylib link blocks and put them in an import library, where they
can then be resolved by the linker.
While import libraries don't exist on ELF, it would still be convenient
to have this same functionality. Not having the libraries present at
build-time can be convenient for several reasons, especially
cross-compilation. With raw-dylib, code linking against a library can be
cross-compiled without needing to have these libraries available on the
build machine. If the libc crate makes use of this, it would allow
cross-compilation without having any libc available on the build
machine. This is not yet possible with this implementation, at least
against libc's like glibc that use symbol versioning.
The raw-dylib kind could be extended with support for symbol versioning
in the future.
This implementation is very experimental and I have not tested it very
well. I have tested it for a toy example and the lz4-sys crate, where it
was able to successfully link a binary despite not having a
corresponding library at build-time.
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Make -Z unpretty=mir suggest -Z dump-mir as well for discoverability
While debugging something else, I got quite annoyed with `-Z unpretty=mir` showing me post-processed MIR instead of the one just after it is built. I ended up asking on Zulip and got pointed to `-Z dump-mir`. While this feature is documented in the rustc dev guide, I think it'd be good if the possibility of making use of it was staring you in the face while you need it.
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Don't suggest constraining unstable associated types
Fixes #137624
This could be made a bit more specific, considering the local crate's stability or nightly status or something, but I think in general we should not be suggesting associated type bounds on unstable associated items.
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Avoid collecting associated types for undefined trait
Fixes #137508
Fixes #137554
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Teach structured errors to display short `Ty<'_>`
Make it so that in every structured error annotated with `#[derive(Diagnostic)]` that has a field of type `Ty<'_>`, the printing of that value into a `String` will look at the thread-local storage `TyCtxt` in order to shorten to a length appropriate with the terminal width. When this happen, the resulting error will have a note with the file where the full type name was written to.
```
error[E0618]: expected function, found `((..., ..., ..., ...), ..., ..., ...)``
--> long.rs:7:5
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6 | fn foo(x: D) { //~ `x` has type `(...
| - `x` has type `((..., ..., ..., ...), ..., ..., ...)`
7 | x(); //~ ERROR expected function, found `(...
| ^--
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| call expression requires function
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= note: the full name for the type has been written to 'long.long-type-14182675702747116984.txt'
= note: consider using `--verbose` to print the full type name to the console
```
Follow up to and response to the comments on #136898.
r? ``@oli-obk``
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fix attribute-related ICE when parsing macro on the rhs of a name-value attribute
r? ``@oli-obk``
Closes: #137589
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hir_analysis: skip self type of host effect preds in variances_of
Discovered as part of an implementation of rust-lang/rfcs#3729 - w/out this then when introducing const trait bounds: many more interesting tests change with different output, missing errors, new errors, etc related to this but they all depend on feature flags and are much more complex than this test.
r? ``@oli-obk``
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trait_sel: resolve vars in host effects
In the standard library, the `Extend` impl for `Iterator` (specialised with `TrustedLen`) has a parameter which is constrained by a projection predicate. This projection predicate provides a value for an inference variable but - if the default bound is `const Sized` instead of `Sized` - host effect evaluation wasn't resolving variables first. Added a test that doesn't depend on a rust-lang/rfcs#3729 implementation.
Adding the extra resolve can the number of errors in some tests when they gain host effect predicates, but this is not unexpected as calls to `resolve_vars_if_possible` can cause more error tainting to happen.
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run some tests on emscripten again
these were ignored because of #45351, but that issue has long been fixed. Let's see if these pass, or if there is some issue lurking still
I believe this is the try-job for emscripten? probably a good idea to run that first.
~~try-job: test-various~~
try-job: dist-various-1
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tests: Add regression test for derive token invalidation (#81099)
Closes https://github.com/rust-lang/rust/issues/81099.
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fix(rustdoc): Fixed stability version in rustdoc
Tries to fix https://github.com/rust-lang/rust/issues/137141
Fixed by adding checks glob exports
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Same motivation as #136287, but for a newly introduced test. Rather than
over-constraining here, we just match the sret and accept pretty much
all other attributes.
@rustbot label llvm-main
r? @nikic
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rename ui tests
check if res is trait def
fix typo
regression test for #137554
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Rollup of 8 pull requests
Successful merges:
- #137370 (adjust_abi: make fallback logic for ABIs a bit easier to read)
- #137444 (Improve behavior of `IF_LET_RESCOPE` around temporaries and place expressions)
- #137464 (Fix invalid suggestion from type error for derive macro)
- #137539 ( Add rustdoc-gui regression test for #137082 )
- #137576 (Don't doc-comment BTreeMap<K, SetValZST, A>)
- #137595 (remove `simd_fpow` and `simd_fpowi`)
- #137600 (type_ir: remove redundant part of comment)
- #137602 (feature: fix typo in attribute description)
r? `@ghost`
`@rustbot` modify labels: rollup
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```
error[E0614]: type `(..., ..., ..., ...)` cannot be dereferenced
--> $DIR/long-E0614.rs:10:5
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LL | *x;
| ^^ can't be dereferenced
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= note: the full name for the type has been written to '$TEST_BUILD_DIR/$FILE.long-type-hash.txt'
= note: consider using `--verbose` to print the full type name to the console
```
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