Right now comparing a `&String` (or a `&Cow`) to a `&str` requires redundant borrowing of the latter. Implementing `PartialEq<str>` tries to avoid this limitation.
```rust
struct Foo (String);
fn main () {
let s = Foo("foo".to_string());
match s {
Foo(ref x) if x == &"foo" => println!("foo!"),
// avoid this -----^
_ => {}
}
}
```
I was hoping that #23521 would solve this but it didn't work out.
Fixes#22757Fixes#22972Fixes#23044Fixes#23151Fixes#23597Fixes#23656Fixes#23929
It also fixes some other corner cases in range patterns, like incorrect spans or not accepting global paths after `...`.
It passes `make check` but needs some additional tests (then it will fix#22546 as well), I'll write them today or tomorrow.
MacOS X does not ship with Java installed by default. Instead it
includes binary stubs that upon execution pop up a message suggesting
the installation of the JDK.
Since `javac` is only used when `antlr4` is available, it is possible
to work around the popup by only probing for `javac` if `antlr4` has
been successfully detected (in which case the JDK is probably already
installed on the system).
Fixes#23138.
There are still some remnants we could remove from the compiler (e.g. references to "subtraitrefs"; traits still have variance entries in the variance table), but this removes all user-visible bits I believe.
r? @pnkfelix
Fixes#22806 (since such traits would no longer exist)
This means passing in e.g. a `Vec<u8>` or `String` will work as
intended, rather than deref-ing to `&mut [u8]` or `&mut str`.
[breaking-change]
Closes#23768
These constants are small and can fit even in `u8`, but semantically they have type `usize` because they denote sizes and are almost always used in `usize` context. The change of their type to `u32` during the integer audit led only to the large amount of `as usize` noise (see the second commit, which removes this noise).
This is a minor [breaking-change] to an unstable interface.
r? @aturon
affected struct:
- sockaddr_storage
- sockaddr_un
apply the same method used for linux for:
- bitrig/openbsd
- freebsd
- dragonfly
this commit unbreak build for openbsd (and bitrig, freebsd and dragonfly too I think)
r? @alexcrichton
This is the first use of `box`. It's an unstable feature and also isn't
consistent with the use of `Box` in the "original" code above it.
r? @steveklabnik
