It is more robust to not fail if any directory in a path was created
concurrently. This change lifts rustc internal `create_dir_racy` that
was created to handle such conditions to be new `create_dir_all`
implementation.
std: remove a workaround for privacy limitations
`std:🧵:Thread` implements a non-exported `NewThread` trait to allow for internal-only use of `Thread::new`. Nowadays we have `pub(crate)`, which accomplishes the same thing but much more idiomatically.
Rustdoc handles this correctly (I checked and I didn't see `Thread::new` on the rustdoc entry for `Thread` with this change), and the stage1 `rustc` emits the correct error still (I'm assuming that the stage1 compiler uses my `libstd`?):
```
$ ./build/x86_64-apple-darwin/stage1/bin/rustc test.rs
error: method `new` is private
--> test.rs:4:18
|
4 | let thread = thread::Thread::new(None);
| ^^^^^^^^^^^^^^^^^^^
error: aborting due to previous error
```
Leftovers from #39594; From<Box> impls
These are a few more impls that follow the same reasoning as those from #39594.
What's included:
* `From<Box<str>> for String`
* `From<Box<[T]>> for Vec<T>`
* `From<Box<CStr>> for CString`
* `From<Box<OsStr>> for OsString`
* `From<Box<Path>> for PathBuf`
* `Into<Box<str>> for String`
* `Into<Box<[T]>> for Vec<T>`
* `Into<Box<CStr>> for CString`
* `Into<Box<OsStr>> for OsString`
* `Into<Box<Path>> for PathBuf`
* `<Box<CStr>>::into_c_string`
* `<Box<OsStr>>::into_os_string`
* `<Box<Path>>::into_path_buf`
* Tracking issue for latter three methods + three from previous PR.
Currently, the opposite direction isn't doable with `From` (only `Into`) because of the separation between `liballoc` and `libcollections`. I'm holding off on those for a later PR.
OsString::shrink_to_fit.
Considering how the other capacity-related methods are there, I found it odd that this one wasn't included.
Will create a tracking issue once I get an OK on this.
This change introduces a Dockerfile and script which builds a complete
Fuchsia toolchain which can be used to build Rust distribution for
Fuchsia. We only support cross-compiling at the moment, hence only
setting the target.
clarify docs for Args and ArgsOs
The args() and args_os() docs include a line about how the first element
is usually the program name. Include that line in the struct docs too.
Reduce size overhead of adaptative hashmap
Exposes a boolean flag in RawTable and use it instead of a bool field in HashMap.
Taking a bit from capacity or length would make overflow handling tricky.
Fixes: #40042
Reduce std_unicode’s public API
* Only keep one copy of the `UTF8_CHAR_WIDTH` table instead of one of each of libcore and libstd_unicode.
* Move the `utf8_char_width` function to `core::str` under the `str_internals` unstable feature.
* Remove `std_unicode::str::is_utf16`. It was only accessible through the `#[unstable]` crate std_unicode. It has never been used in the compiler or standard library since 47e7a05 added it in 2012 “for OS API interop”. It can be replaced with a one-liner:
```rust
fn is_utf16(slice: &[u16]) -> bool {
std::char::decode_utf16(s).all(|r| r.is_ok())
}
```
std::process for fuchsia: updated to latest liblaunchpad
Our liblaunchpad changed a bit and so fuchsia's std::process impl needs to change a bit.
@raphlinus
added Error and Display impl for std::ffi::FromBytesWithNulError
Fixes#39925.
This is my first PR, so I wasn't quite sure about the stability annotation.
Example for how to provide stdin using std::process::Command
Spawning a child process and writing to its stdin is a bit tricky due to
`as_mut` and having to use a limited borrow. An example for this might
help newer users.
r? @steveklabnik
