Rollup of 7 pull requests #103617
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Rollup of 7 pull requests #103617
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Co-authored-by: Ralf Jung <post@ralfj.de>
Co-authored-by: Ralf Jung <post@ralfj.de>
The margin was already being set to 0 only a few lines lower.
Co-authored-by: Ralf Jung <post@ralfj.de>
…n3, r=thomcc
Even nicer errors from assert_unsafe_precondition
For example, now running `cargo test` with this patch I get things like:
```
$ cargo +stage1 test
Finished test [unoptimized + debuginfo] target(s) in 0.01s
Running unittests src/lib.rs (target/debug/deps/malloc_buf-9d105ddf86862995)
running 5 tests
thread 'tests::test_null_buf' panicked at 'unsafe precondition violated: is_aligned_and_not_null(data) &&
crate::mem::size_of::<T>().saturating_mul(len) <= isize::MAX as usize', /home/ben/rust/library/core/src/slice/raw.rs:93:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
thread panicked while panicking. aborting.
error: test failed, to rerun pass `--lib`
Caused by:
process didn't exit successfully: `/tmp/malloc_buf-1.0.0/target/debug/deps/malloc_buf-9d105ddf86862995` (signal: 6, SIGABRT: process abort signal)
```
This is still not perfect, but these are better for another PR:
* `stringify!` is trying to do clever pretty-printing on the `expr` inside `assert_unsafe_precondition` and can even add a newline.
* It would be nice to print a bit more information about where the problem is. Perhaps this is `cfg_attr(debug_assertions, track_caller)`, or perhaps it the function name added to `Location`.
cc `@RalfJung` this is what I was thinking of for rust-lang#102732 (comment)
Try to say that memory outside the AM is always exposed cc `@Gankra` `@thomcc` I want to confidently tell people that they can use `from_exposed_addr` to get a pointer for doing MMIO and/or other hardware interactions done with volatile reads/writes at particular addresses outside the Rust AM. Currently, the docs indicate that would be UB. With this change, now the docs indicate that this is intended to be a valid use of `from_exposed_addr`. r? `@RalfJung`
…er-errors Do not consider repeated lifetime params for elision. Fixes rust-lang#103330
Make param index generation a bit more robust r? ```@lcnr``` While not really necessary for closure and anon const ids, it's strictly more correct
…ait, r=lcnr Move a wf-check into the site where the value is instantiated r? `@lcnr`
…ckh726 Process registered region obligation in `resolve_regions_with_wf_tys` Fixes rust-lang#103573
…-notable, r=GuillaumeGomez rustdoc: remove redundant CSS selector `.notable-traits .notable` The margin was already being set to 0 only a few lines lower.
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@bors r+ rollup=never p=7 |
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⌛ Testing commit 30fc2a4 with merge 64f804c14cd75977747ced46507beab68f0c7c35... |
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Successful merges:
resolve_regions_with_wf_tys#103586 (Process registered region obligation inresolve_regions_with_wf_tys).notable-traits .notable#103592 (rustdoc: remove redundant CSS selector.notable-traits .notable)Failed merges:
r? @ghost
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