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This is a stopgap until DST (#12938) lands.
Until DST lands, we cannot decompose &str into & and str, so we cannot
usefully take ToCStr arguments by reference (without forcing an
additional & around &str). So we are instead temporarily adding an
instance for &Path and StrBuf, so that we can take ToCStr as owned. When
DST lands, the &Path instance should be removed, the string instances
should be revisted, and arguments bound by ToCStr should be passed by
reference.
FIXMEs have been added accordingly.
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Also Show, which is useful in assertions. Fixes #14074
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This allows the original vector to be recovered in the event that it is
not UTF-8.
[breaking-change]
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This allows the original vector to be recovered in the event that it is
not valid UTF-8.
[breaking-change]
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test str::bench::bench_contains_bad_naive ... bench: 1309 ns/iter (+/- 36)
test str::bench::bench_contains_equal ... bench: 137 ns/iter (+/- 2)
test str::bench::bench_contains_short_long ... bench: 5473 ns/iter (+/- 14)
test str::bench::bench_contains_short_short ... bench: 57 ns/iter (+/- 6)
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I feel that this is a very vital, missing piece of functionality. This adds on to #13072.
Only bits used in the definition of the bitflag are considered for the universe set. This is a bit safer than simply inverting all of the bits in the wrapped value.
```rust
bitflags!(flags Flags: u32 {
FlagA = 0x00000001,
FlagB = 0x00000010,
FlagC = 0x00000100,
FlagABC = FlagA.bits
| FlagB.bits
| FlagC.bits
})
...
// `Not` implements set complement
assert!(!(FlagB | FlagC) == FlagA);
// `all` and `is_all` are the inverses of `empty` and `is_empty`
assert!(Flags::all() - FlagA == !FlagA);
assert!(FlagABC.is_all());
```
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Also Show, which is useful in assertions. Fixes #14074
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Reader.read_at_least() ensures that at least a given number of bytes
have been read. The most common use-case for this is ensuring at least 1
byte has been read. If the reader returns 0 enough times in a row, a new
error kind NoProgress will be returned instead of looping infinitely.
This change is necessary in order to properly support Readers that
repeatedly return 0, either because they're broken, or because they're
attempting to do a non-blocking read on some resource that never becomes
available.
Also add .push() and .push_at_least() methods. push() is like read() but
the results are appended to the passed Vec.
Remove Reader.fill() and Reader.push_exact() as they end up being thin
wrappers around read_at_least() and push_at_least().
[breaking-change]
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Reader.read_at_least() ensures that at least a given number of bytes
have been read. The most common use-case for this is ensuring at least 1
byte has been read. If the reader returns 0 enough times in a row, a new
error kind NoProgress will be returned instead of looping infinitely.
This change is necessary in order to properly support Readers that
repeatedly return 0, either because they're broken, or because they're
attempting to do a non-blocking read on some resource that never becomes
available.
Also add .push() and .push_at_least() methods. push() is like read() but
the results are appended to the passed Vec.
Remove Reader.fill() and Reader.push_exact() as they end up being thin
wrappers around read_at_least() and push_at_least().
[breaking-change]
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This implements set_timeout() for std::io::Process which will affect wait()
operations on the process. This follows the same pattern as the rest of the
timeouts emerging in std::io::net.
The implementation was super easy for everything except libnative on unix
(backwards from usual!), which required a good bit of signal handling. There's a
doc comment explaining the strategy in libnative. Internally, this also required
refactoring the "helper thread" implementation used by libnative to allow for an
extra helper thread (not just the timer).
This is a breaking change in terms of the io::Process API. It is now possible
for wait() to fail, and subsequently wait_with_output(). These two functions now
return IoResult<T> due to the fact that they can time out.
Additionally, the wait_with_output() function has moved from taking `&mut self`
to taking `self`. If a timeout occurs while waiting with output, the semantics
are undesirable in almost all cases if attempting to re-wait on the process.
Equivalent functionality can still be achieved by dealing with the output
handles manually.
[breaking-change]
cc #13523
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The Normalizations iterator has been renamed to Decompositions.
It does not currently include all forms of Unicode normalization,
but only encompasses decompositions.
If implemented recomposition would likely be a separate iterator
which works on the result of this one.
[breaking-change]
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Signed-off-by: OGINO Masanori <masanori.ogino@gmail.com>
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The compiler was updated to recognize that implementations for ty_uniq(..) are
allowed if the Box lang item is located in the current crate. This enforces the
idea that libcore cannot allocated, and moves all related trait implementations
from libcore to libstd.
This is a breaking change in that the AnyOwnExt trait has moved from the any
module to the owned module. Any previous users of std::any::AnyOwnExt should now
use std::owned::AnyOwnExt instead. This was done because the trait is intended
for Box traits and only Box traits.
[breaking-change]
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Signed-off-by: OGINO Masanori <masanori.ogino@gmail.com>
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- Use Unicode-aware versions of `CreateProcess` (Fixes #13815) and `Get/FreeEnvironmentStrings`.
- Includes a helper function `os::win32::as_mut_utf16_p`, which does the same thing as `os::win32::as_utf16_p` except the pointer is mutable.
- Fixed `make_command_line` to handle Unicode correctly.
- Tests for the above.
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Changed libstd to use Get/FreeEnvironmentStringsW instead of
Get/FreeEnvironmentStringsA to support Unicode environment variables.
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Changed libnative to use CreateProcessW instead of CreateProcessA. In
addition, the lpEnvironment parameter now uses Unicode.
Added a helper function os::win32::as_mut_utf16_p, which does basically
the same thing as os::win32::as_utf16_p except the pointer is mutable.
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appropriate unit tests, using the same test case as push_char.
Changed StrBuf.shift_byte() that it no longer reallocates the buffer by just calling Vec.shift();
Added warning to shift_char()'s docs about it having to copy the whole buffer, as per the docs for
Vec.shift().
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r=alexcrichton
Been meaning to try my hand at something like this for a while, and noticed something similar mentioned as part of #13537. The suggestion on the original ticket is to use `TcpStream::open(&str)` to pass in a host + port string, but seems a little cleaner to pass in host and port separately -- so a signature like `TcpStream::open(&str, u16)`.
Also means we can use std::io::net::addrinfo directly instead of using e.g. liburl to parse the host+port pair from a string.
One outstanding issue in this PR that I'm not entirely sure how to address: in open_timeout, the timeout_ms will apply for every A record we find associated with a hostname -- probably not the intended behavior, but I didn't want to waste my time on elaborate alternatives until the general idea was a-OKed. :)
Anyway, perhaps there are other reasons for us to prefer the original proposed syntax, but thought I'd get some thoughts on this. Maybe there are some solid reasons to prefer using liburl to do this stuff.
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Fall back to get_host_addresses to try a DNS lookup if we can't
parse it as an IP address.
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Prior to this commit, TcpStream::connect and TcpListener::bind took a
single SocketAddr argument. This worked well enough, but the API felt a
little too "low level" for most simple use cases.
A great example is connecting to rust-lang.org on port 80. Rust users would
need to:
1. resolve the IP address of rust-lang.org using
io::net::addrinfo::get_host_addresses.
2. check for errors
3. if all went well, use the returned IP address and the port number
to construct a SocketAddr
4. pass this SocketAddr to TcpStream::connect.
I'm modifying the type signature of TcpStream::connect and
TcpListener::bind so that the API is a little easier to use.
TcpStream::connect now accepts two arguments: a string describing the
host/IP of the host we wish to connect to, and a u16 representing the
remote port number.
Similarly, TcpListener::bind has been modified to take two arguments:
a string describing the local interface address (e.g. "0.0.0.0" or
"127.0.0.1") and a u16 port number.
Here's how to port your Rust code to use the new TcpStream::connect API:
// old ::connect API
let addr = SocketAddr{ip: Ipv4Addr{127, 0, 0, 1}, port: 8080};
let stream = TcpStream::connect(addr).unwrap()
// new ::connect API (minimal change)
let addr = SocketAddr{ip: Ipv4Addr{127, 0, 0, 1}, port: 8080};
let stream = TcpStream::connect(addr.ip.to_str(), addr.port()).unwrap()
// new ::connect API (more compact)
let stream = TcpStream::connect("127.0.0.1", 8080).unwrap()
// new ::connect API (hostname)
let stream = TcpStream::connect("rust-lang.org", 80)
Similarly, for TcpListener::bind:
// old ::bind API
let addr = SocketAddr{ip: Ipv4Addr{0, 0, 0, 0}, port: 8080};
let mut acceptor = TcpListener::bind(addr).listen();
// new ::bind API (minimal change)
let addr = SocketAddr{ip: Ipv4Addr{0, 0, 0, 0}, port: 8080};
let mut acceptor = TcpListener::bind(addr.ip.to_str(), addr.port()).listen()
// new ::bind API (more compact)
let mut acceptor = TcpListener::bind("0.0.0.0", 8080).listen()
[breaking-change]
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Closes #14163 (Fix typos in rustc manpage)
Closes #14161 (Add the patch number to version strings. Closes #13289)
Closes #14156 (rustdoc: Fix hiding implementations of traits)
Closes #14152 (add shebang to scripts that have execute bit set)
Closes #14150 (libcore: remove fails from slice.rs and remove duplicated length checking)
Closes #14147 (Make ProcessOutput Eq, TotalEq, Clone)
Closes #14142 (doc: updates rust manual (loop to continue))
Closes #14141 (doc: Update the linkage documentation)
Closes #14139 (Remove an unnecessary .move_iter().collect())
Closes #14136 (Two minor fixes in parser.rs)
Closes #14130 (Fixed typo in comments of driver.rs)
Closes #14128 (Add `stat` method to `std::io::fs::File` to stat without a Path.)
Closes #14114 (rustdoc: List macros in the sidebar)
Closes #14113 (shootout-nbody improvement)
Closes #14112 (Improved example code in Option)
Closes #14104 (Remove reference to MutexArc)
Closes #14087 (emacs: highlight `macro_name!` in macro invocations using [] delimiters)
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The `FileStat` struct contained a `path` field, which was filled by the
`stat` and `lstat` function. Since this field isn't in fact returned by
the operating system (it was copied from the paths passed to the
functions) it was removed, as in the `fstat` case we aren't working with
a `Path`, but directly with a fd.
If your code used the `path` field of `FileStat` you will now have to
manually store the path passed to `stat` along with the returned struct.
[breaking-change]
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Despite implementing the Container trait, StrBuf did not implement the Mutable trait and had no clear method; this request implements the clear method of the Mutable trait for StrBuf.
Testing done: added a test and ran `make check` without any failures.
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The `std::rt::heap` API is Rust's global allocator, so there's no need
to have this as a separate API.
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Support for this was added by 08237cad8d2ce9287aedf99e57384407cc9dc42d.
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This commit revisits the `cast` module in libcore and libstd, and scrutinizes
all functions inside of it. The result was to remove the `cast` module entirely,
folding all functionality into the `mem` module. Specifically, this is the fate
of each function in the `cast` module.
* transmute - This function was moved to `mem`, but it is now marked as
#[unstable]. This is due to planned changes to the `transmute`
function and how it can be invoked (see the #[unstable] comment).
For more information, see RFC 5 and #12898
* transmute_copy - This function was moved to `mem`, with clarification that is
is not an error to invoke it with T/U that are different
sizes, but rather that it is strongly discouraged. This
function is now #[stable]
* forget - This function was moved to `mem` and marked #[stable]
* bump_box_refcount - This function was removed due to the deprecation of
managed boxes as well as its questionable utility.
* transmute_mut - This function was previously deprecated, and removed as part
of this commit.
* transmute_mut_unsafe - This function doesn't serve much of a purpose when it
can be achieved with an `as` in safe code, so it was
removed.
* transmute_lifetime - This function was removed because it is likely a strong
indication that code is incorrect in the first place.
* transmute_mut_lifetime - This function was removed for the same reasons as
`transmute_lifetime`
* copy_lifetime - This function was moved to `mem`, but it is marked
`#[unstable]` now due to the likelihood of being removed in
the future if it is found to not be very useful.
* copy_mut_lifetime - This function was also moved to `mem`, but had the same
treatment as `copy_lifetime`.
* copy_lifetime_vec - This function was removed because it is not used today,
and its existence is not necessary with DST
(copy_lifetime will suffice).
In summary, the cast module was stripped down to these functions, and then the
functions were moved to the `mem` module.
transmute - #[unstable]
transmute_copy - #[stable]
forget - #[stable]
copy_lifetime - #[unstable]
copy_mut_lifetime - #[unstable]
[breaking-change]
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This module only contains wrappers for malloc and realloc with
out-of-memory checks.
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In stage0, all allocations are 8-byte aligned. Passing a size and
alignment to free is not yet implemented everywhere (0 size and 8 align
are used as placeholders). Fixing this is part of #13994.
Closes #13616
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