Rollup of 5 pull requests #112095
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Rollup of 5 pull requests #112095
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These tend to have special handling in a bunch of places anyway, so the variant helps remember that. And I think it's easier to grok than non-Scalar Aggregates sometimes being `Immediates` (like I got wrong and caused 109992). As a minor bonus, it means we don't need to generate poison LLVM values for them to pass around in `OperandValue::Immediate`s.
fix comment on Allocator trait fixes rust-lang#107040
…ompiler-errors Add a distinct `OperandValue::ZeroSized` variant for ZSTs These tend to have special handling in a bunch of places anyway, so the variant helps remember that. And I think it's easier to grok than `Aggregate`s sometimes being `Immediates` (after all, I previously got that wrong and caused rust-lang#109992). As a minor bonus, it means we don't need to generate poison LLVM values for ZSTs to pass around in `OperandValue::Immediate`s. Inspired by rust-lang#110021 (comment), so r? ``@compiler-errors``
…cked, r=WaffleLapkin
Uplift `clippy::invalid_utf8_in_unchecked` lint
This PR aims at uplifting the `clippy::invalid_utf8_in_unchecked` lint into two lints.
## `invalid_from_utf8_unchecked`
(deny-by-default)
The `invalid_from_utf8_unchecked` lint checks for calls to `std::str::from_utf8_unchecked` and `std::str::from_utf8_unchecked_mut` with an invalid UTF-8 literal.
### Example
```rust
unsafe {
std::str::from_utf8_unchecked(b"cl\x82ippy");
}
```
### Explanation
Creating such a `str` would result in undefined behavior as per documentation for `std::str::from_utf8_unchecked` and `std::str::from_utf8_unchecked_mut`.
## `invalid_from_utf8`
(warn-by-default)
The `invalid_from_utf8` lint checks for calls to `std::str::from_utf8` and `std::str::from_utf8_mut` with an invalid UTF-8 literal.
### Example
```rust
std::str::from_utf8(b"ru\x82st");
```
### Explanation
Trying to create such a `str` would always return an error as per documentation for `std::str::from_utf8` and `std::str::from_utf8_mut`.
-----
Mostly followed the instructions for uplifting a clippy lint described here: rust-lang#99696 (review)
``@rustbot`` label: +I-lang-nominated
r? compiler
-----
For Clippy:
changelog: Moves: Uplifted `clippy::invalid_utf8_in_unchecked` into rustc
…alfJung
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
|
8 | res = res.wrapping_add(i);
| ^ Compilation was interrupted
note: erroneous constant used
--> spin.rs:15:20
|
15 | println!("{}", OW);
| ^^
note: erroneous constant used
--> spin.rs:15:20
|
15 | println!("{}", OW);
| ^^
|
= 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`.
```
…lor-9, r=notriddle Migrate GUI colors test to original CSS color format Follow-up of rust-lang#111459. The `browser-ui-test` update is a fix when converting the alpha value to hex format. More information [here](GuillaumeGomez/browser-UI-test#511). r? ``@notriddle``
rustbot
added
A-testsuite
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@bors r+ rollup=never p=𝟱 |
bors
added
S-waiting-on-bors
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⌛ Testing commit ec6ef7a with merge 8eb92e0f7caad4b7cfd2e482de4bf72c54cb5b1e... |
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The job Click to see the possible cause of the failure (guessed by this bot) |
|
💔 Test failed - checks-actions |
bors
added
S-waiting-on-review
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i don't know whats happening here, let's run the specific PRs into further issues themselves. |
|
it was #111769 for cursed reasons |
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Successful merges:
OperandValue::ZeroSizedvariant for ZSTs #111318 (Add a distinctOperandValue::ZeroSizedvariant for ZSTs)clippy::invalid_utf8_in_uncheckedlint #111543 (Upliftclippy::invalid_utf8_in_uncheckedlint)Failed merges:
ui/discrimdir #112068 (Move tests fromui/discrimdir)r? @ghost
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