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Since the stabilization in #127679 has reached stage0, 1.82-beta, we can
start using `&raw` freely, and even the soft-deprecated `ptr::addr_of!`
and `ptr::addr_of_mut!` can stop allowing the unstable feature.
I intentionally did not change any documentation or tests, but the rest
of those macro uses are all now using `&raw const` or `&raw mut` in the
standard library.
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Mention that some methods do not sanitize their input fully
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The previous commit updated `rustfmt.toml` appropriately. This commit is
the outcome of running `x fmt --all` with the new formatting options.
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Many tiny changes to stdlib doc comments to make them consistent (for example
"Returns foo", rather than "Return foo", per RFC1574), adding missing periods, paragraph
breaks, backticks for monospace style, and other minor nits.
https://github.com/rust-lang/rfcs/blob/master/text/1574-more-api-documentation-conventions.md#appendix-a-full-conventions-text
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Now that #90435 seems to have been resolved.
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Improve std::Path's Hash quality by avoiding prefix collisions
This adds a bit rotation to the already existing state so that the same sequence of characters chunked at different offsets into separate path components results in different hashes.
The tests are from #127255
Closes #127254
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Signed-off-by: tison <wander4096@gmail.com>
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Signed-off-by: tison <wander4096@gmail.com>
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#126333
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Rename `std::fs::try_exists` to `std::fs::exists` and stabilize fs_try_exists
FCP completed in tracking issue.
Tracking issue: https://github.com/rust-lang/rust/issues/83186
Closes https://github.com/rust-lang/rust/issues/83186
Stabilized API:
```rust
mod fs {
pub fn exists<P: AsRef<Path>>(path: P) -> io::Result<bool>;
}
```
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These changes bring it closer to other standard library documentation
and, in particular, `std::fs::canonicalize`, which it will often be
compared with.
* Add `# Platform-specific behavior` section, with content moved from
Examples section.
* Create `# Errors` section.
* Phrase error description to allow future platforms to have new
syntactic errors, rather than only emptiness.
* Add missing commas.
* Indent example code 4 spaces.
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Panic if `PathBuf::set_extension` would add a path separator
This is likely never intended and potentially a security vulnerability if it happens.
I'd guess that it's mostly literal strings that are passed to this function in practice, so I'm guessing this doesn't break anyone.
CC #125060
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This is likely never intended and potentially a security vulnerability
if it happens.
I'd guess that it's mostly literal strings that are passed to this
function in practice, so I'm guessing this doesn't break anyone.
CC #125060
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Document overrides of `clone_from()` in core/std
As mentioned in https://github.com/rust-lang/rust/pull/96979#discussion_r1379502413
Specifically, when an override doesn't just forward to an inner type, document the behavior and that it's preferred over simply assigning a clone of source. Also, change instances where the second parameter is "other" to "source".
I reused some of the wording over and over for similar impls, but I'm not sure that the wording is actually *good*. Would appreciate feedback about that.
Also, now some of these seem to provide pretty specific guarantees about behavior (e.g. will reuse the exact same allocation iff the len is the same), but I was basing it off of the docs for [`Box::clone_from`](https://doc.rust-lang.org/1.75.0/std/boxed/struct.Box.html#method.clone_from-1) - I'm not sure if providing those strong guarantees is actually good or not.
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If you take a quick glance at the documentation for Path::ancestors, the unwraps take the natural focus. Potentially indicating that ancestors might panic.
In the reworked version I've also moved the link with parent returning None and that the iterator will always yield &self to before the yield examples.
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Changes the example from using the qualified path of PathBuf with an import. This is what's done in all other Path/PathBuf examples and makes the code look a bit cleaner.
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Specifically, when an override doesn't just forward to an inner type,
document the behavior and that it's preferred over simply assigning
a clone of source. Also, change instances where the second parameter is
"other" to "source".
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Add `display` method to `OsStr`
Add `display` method to `OsStr` for lossy display of an `OsStr` which may contain invalid unicode.
Invalid Unicode sequences are replaced with `U+FFFD REPLACEMENT CHARACTER`.
This change also makes the `std::ffi::os_str` module public (see https://github.com/rust-lang/libs-team/issues/326#issuecomment-1894160023).
- ACP: https://github.com/rust-lang/libs-team/issues/326
- Tracking issue: #120048
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Help with common API confusion, like asking for `push` when the data structure really has `append`.
```
error[E0599]: no method named `size` found for struct `Vec<{integer}>` in the current scope
--> $DIR/rustc_confusables_std_cases.rs:17:7
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LL | x.size();
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help: you might have meant to use `len`
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LL | x.len();
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help: there is a method with a similar name
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LL | x.resize();
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```
#59450
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Add `display` method to `OsStr` for lossy display of an `OsStr` which may contain invalid unicode.
Invalid Unicode sequences are replaced with `U+FFFD REPLACEMENT CHARACTER`.
This change also makes the `std::ffi::os_str` module public.
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`Path::with_extension` used to reallocate (and copy) paths twice per
call, now it does it once, by checking the size of the previous and new
extensions it's possible to call `PathBuf::with_capacity` and pass the
exact capacity it takes.
Also reduce the memory consumption of the path returned from
`Path::with_extension` by using exact capacity instead of using
amortized exponential growth.
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r=Mark-Simulacrum
enable `rust_2018_idioms` lint group for doctests
With this change, `rust_2018_idioms` lint group will be enabled for compiler/libstd doctests.
Resolves #106086
Resolves #99144
Signed-off-by: ozkanonur <work@onurozkan.dev>
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Signed-off-by: ozkanonur <work@onurozkan.dev>
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std docs: edit `PathBuf::set_file_name` example
To make explicit that `set_file_name` might replace or remove the
extension, not just the file stem.
Also edit docs for `Path::with_file_name`, which calls `set_file_name`.
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