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Modifying an environment variable would make the function unsafe to
call.
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This ensures the version of time used in rustc includes this change:
https://github.com/time-rs/time/pull/671.
This fix is a necessary prerequisite for #99969,
which adds FromIterator implementations for Box<str>.
Previously, time had an Into::into that resolved to the identity impl
followed by a collect::<Result<Box<_>, _>>().
With the new FromIterator implementations for Box<str>,
the Into::into resolution is ambiguous and time fails to compile.
The fix removes the identity Into::into conversion,
allowing time to compile with the new FromIterator implementations.
This version of time also matches what cargo recently switched to
in https://github.com/rust-lang/cargo/pull/13834.
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I found these with a hacky shell script.
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Remove many `#[macro_use] extern crate foo` items
This requires the addition of more `use` items, which often make the code more verbose. But they also make the code easier to read, because `#[macro_use]` obscures where macros are defined.
r? `@fee1-dead`
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WASM fundamentally doesn't support signals. If WASI ever gets support
for notifying the guest process of a Ctrl-C that happened, this would
have to be done through the guest process polling for the signal, which
will require thread support in WASI too to be compatible with the api
provided by the ctrlc crate.
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Ensure we do not accidentally insert new early aborts in the analysis passes
pulling the infallible part out into a separate function makes sure that someone needs to change the signature in order to regress this.
We only want to stop compilation in the presence of errors after all analyses are done, but before we start running lints.
per-item we can still stop doing work if previous queries returned errors, but that's a separate story.
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Add consistency with phrases "meantime" and "mean time"
"mean time" is used in a few places while "meantime" is used everywhere else; this would make usage consistent throughout the codebase.
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Print a backtrace in const eval if interrupted
Demo:
```rust
#![feature(const_eval_limit)]
#![const_eval_limit = "0"]
const OW: u64 = {
let mut res: u64 = 0;
let mut i = 0;
while i < u64::MAX {
res = res.wrapping_add(i);
i += 1;
}
res
};
fn main() {
println!("{}", OW);
}
```
```
╭ ➜ ben@archlinux:~/rust
╰ ➤ rustc +stage1 spin.rs
^Cerror[E0080]: evaluation of constant value failed
--> spin.rs:8:33
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8 | res = res.wrapping_add(i);
| ^ Compilation was interrupted
note: erroneous constant used
--> spin.rs:15:20
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15 | println!("{}", OW);
| ^^
note: erroneous constant used
--> spin.rs:15:20
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15 | println!("{}", OW);
| ^^
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= note: this note originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to previous error
For more information about this error, try `rustc --explain E0080`.
```
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workingjubilee:suggest-rust-min-stack-workaround-on-overflow, r=TaKO8Ki
Suggest `RUST_MIN_STACK` workaround on overflow
For some Rust crates, like p384, we can't do a whole lot about it even if the stack overflow is reported like in rust-lang/rust#122357 because the problem may be inside LLVM or another codegen backend. We can, however, suggest people set a new `RUST_MIN_STACK` value while handling the SIGSEGV, as that stack-setting will carry forward into the dylib.
As a bonus, this also leads to cleaning up the stack-setting code a bit.
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Backend and target selection is a mess: the target can override the
backend (via `Target::default_codegen_backend`), *and* the backend can
override the target (via `CodegenBackend::target_override`).
The code that handles this is ugly. It calls `build_target_config`
twice, once before getting the backend and once again afterward. It also
must check that both overrides aren't triggering at the same time.
This commit removes the latter override. It's used in rust-gpu but
@eddyb said via Zulip that removing it would be ok. This simplifies the
code greatly, and will allow some nice follow-up refactorings.
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Make incremental sessions identity no longer depend on the crate names provided by source code
This makes incremental sessions identity no longer depend on the crate names provided by source code, implementing
https://github.com/rust-lang/compiler-team/issues/726.
r? ````@oli-obk````
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Revert "Auto merge of #122140 - oli-obk:track_errors13, r=davidtwco"
This reverts commit 65cd843ae06ad00123c131a431ed5304e4cd577a, reversing changes made to d255c6a57c393db6221b1ff700daea478436f1cd.
reverts https://github.com/rust-lang/rust/pull/122140
It was a large regression in wall time due to trashing CPU caches
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provided by source code
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Lock stderr in panic handler
Fixes https://github.com/rust-lang/rust/issues/119789.
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This reverts commit 65cd843ae06ad00123c131a431ed5304e4cd577a, reversing
changes made to d255c6a57c393db6221b1ff700daea478436f1cd.
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Rollup of 15 pull requests
Successful merges:
- #116791 (Allow codegen backends to opt-out of parallel codegen)
- #116793 (Allow targets to override default codegen backend)
- #117458 (LLVM Bitcode Linker: A self contained linker for nvptx and other targets)
- #119385 (Fix type resolution of associated const equality bounds (take 2))
- #121438 (std support for wasm32 panic=unwind)
- #121893 (Add tests (and a bit of cleanup) for interior mut handling in promotion and const-checking)
- #122080 (Clarity improvements to `DropTree`)
- #122152 (Improve diagnostics for parenthesized type arguments)
- #122166 (Remove the unused `field_remapping` field from `TypeLowering`)
- #122249 (interpret: do not call machine read hooks during validation)
- #122299 (Store backtrace for `must_produce_diag`)
- #122318 (Revision-related tweaks for next-solver tests)
- #122320 (Use ptradd for vtable indexing)
- #122328 (unix_sigpipe: Replace `inherit` with `sig_dfl` in syntax tests)
- #122330 (bootstrap readme: fix, improve, update)
r? `@ghost`
`@rustbot` modify labels: rollup
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Allow targets to override default codegen backend
Implements https://github.com/rust-lang/compiler-team/issues/670.
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Move metadata header and version checks together
This will make it easier to report rustc versions for older metadata formats.
Split out of https://github.com/rust-lang/rust/pull/120855
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This will make it easier to report rustc versions for older metadata
formats.
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Refactor pre-getopts command line argument handling
Rebased version of #111658. I've also fixed the Windows CI failure (although I don't have access to Windows to test it myself).
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Remove `feed_local_def_id`
best reviewed commit by commit
Basically I returned `TyCtxtFeed` from `create_def` and then preserved that in the local caches
based on https://github.com/rust-lang/rust/pull/121084
r? ````@petrochenkov````
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r=davidtwco
Rework `untranslatable_diagnostic` lint
Currently it only checks calls to functions marked with `#[rustc_lint_diagnostics]`. This PR changes it to check calls to any function with an `impl Into<{D,Subd}iagnosticMessage>` parameter. This greatly improves its coverage and doesn't rely on people remembering to add `#[rustc_lint_diagnostics]`. It also lets us add `#[rustc_lint_diagnostics]` to a number of functions that don't have an `impl Into<{D,Subd}iagnosticMessage>`, such as `Diag::span`.
r? ``@davidtwco``
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Currently it only checks calls to functions marked with
`#[rustc_lint_diagnostics]`. This commit changes it to check calls to
any function with an `impl Into<{D,Subd}iagMessage>` parameter. This
greatly improves its coverage and doesn't rely on people remembering to
add `#[rustc_lint_diagnostics]`.
The commit also adds `#[allow(rustc::untranslatable_diagnostic)`]
attributes to places that need it that are caught by the improved lint.
These places that might be easy to convert to translatable diagnostics.
Finally, it also:
- Expands and corrects some comments.
- Does some minor formatting improvements.
- Adds missing `DecorateLint` cases to
`tests/ui-fulldeps/internal-lints/diagnostics.rs`.
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Hint user to update nightly on ICEs produced from outdated nightly
This is a conservative best-effort approach to detect a potentially outdated nightly; it will fallback to the regular ICE-reporting if any of the following cases are true:
- Channel is not nightly
- Version information is not available
- Version date is not parseable as a YYYY-MM-DD or is missing
- System time is at least 36 hours ahead of the user's nightly release datetime.
- Any internal features are used.
Note that I'm not sure how to make a test for this: I tested this manually by `CFG_VER_DATE="2020-02-02" ./x build library --stage 1`, and also changing the channel detection in `rustc_driver_impl` from `Some("nightly")` to `Some("nightly" | "dev")`, and then running `rustc +stage1 test.rs -Ztreat-err-as-bug=1` with a non-existent `test.rs`.
<img width="1145" alt="Screenshot 2024-02-27 at 01 12 28" src="https://github.com/rust-lang/rust/assets/39484203/eff6af2e-4b19-4a70-af57-cd739ecf0e84">
Closes #118832.
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Existing names for values of this type are `sess`, `parse_sess`,
`parse_session`, and `ps`. `sess` is particularly annoying because
that's also used for `Session` values, which are often co-located, and
it can be difficult to know which type a value named `sess` refers to.
(That annoyance is the main motivation for this change.) `psess` is nice
and short, which is good for a name used this much.
The commit also renames some `parse_sess_created` values as
`psess_created`.
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Because `HumanEmitter::new` is enough, in conjunction with the (renamed)
`stderr_destination` function.
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Because it's now the only constructor.
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It's clumsy and doesn't improve readability.
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Because it's now simple enough that it doesn't provide much benefit.
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Its one use isn't necessary, because it's not possible for errors to
have been emitted at that point.
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