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Signed-off-by: crystalstall <crystalruby@qq.com>
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Rustdoc has no way to show that an item is stable,
but only at a different path. `std::ffi::c_str::NulError` is
not stable, but `std::ffi::NulError` is.
To avoid marking these types as unstable when someone just
wants to follow a link from `CString`, inline them into their
stable paths.
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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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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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Now that #90435 seems to have been resolved.
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This provides a list of locations to hunt down issues in.
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#126333
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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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Add std::ffi::c_str module
ACP: rust-lang/libs-team#134
`std::ffi` docs before change:
`std::ffi` docs after change:
(note: I'm omitting the `c_int`, etc. stuff from the screenshots since it's the same in both. this doesn't just delete those types)
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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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On Windows and UEFI this improves performance and error messaging.
On other platforms we optimize the fast path a bit more.
This also prepares for later relaxing the checks on certain platforms.
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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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detects redundant imports that can be eliminated.
for #117772 :
In order to facilitate review and modification, split the checking code and
removing redundant imports code into two PR.
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Closes #111544
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Re-export core::ffi::FromBytesUntilNulError in std::ffi
Like the other CStr and CString error types, make a re-export for std::ffi::FromBytesUntilNulError.
This seems to have slipped through the cracks in the cstr_from_bytes_until_nul implementation and core_c_str migration.
Tracking Issue: #95027
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Allow limited access to `OsString` bytes
This extends #109698 to allow no-cost conversion between `Vec<u8>` and `OsString` as suggested in feedback from `os_str_bytes` crate in #111544.
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Like the other CStr and CString error types, make a re-export for
std::ffi::FromBytesUntilNulError.
This seems to have slipped through the cracks in the
cstr_from_bytes_until_nul implementation and core_c_str migration.
Tracking Issue: #95027
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This extends #109698 to allow no-cost conversion between `Vec<u8>` and `OsString`
as suggested in feedback from `os_str_bytes` crate in #111544.
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Implement `TryFrom<&OsStr>` for `&str`
Recently when trying to work with `&OsStr` I was surprised to find this `impl` missing.
Since the `to_str` method already existed the actual implementation is fairly non-controversial, except for maybe the choice of the error type. I chose an opaque error here instead of something like `std::str::Utf8Error`, since that would already make a number of assumption about the underlying implementation of `OsStr`.
As this is a trait implementation, it is insta-stable, if I'm not mistaken?
Either way this will need an FCP.
I chose "1.64.0" as the version, since this is unlikely to land before the beta cut-off.
`@rustbot` modify labels: +T-libs-api
API Change Proposal: rust-lang/rust#99031 (accepted)
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