The previous syntax was `Foo:Bound<trait-parameters>`, but this is a little
ambiguous because it was being parsed as `Foo: (Bound<trait-parameters)` rather
than `Foo: (Bound) <trait-parameters>`
This commit changes the syntax to `Foo<trait-parameters>: Bound` in order to be
clear where the trait parameters are going.
Closes#9265
Add some docs to ExpnInfo. Add a single overlooked `new_span` call to the folder (I'm pretty sure nothing reads this span, though, so it's probably pointless).
This change is in preparation for #8122. Nothing is currently done with these
visibility qualifiers, they are just parsed and accepted by the compiler.
RFC: 0004-private-fields
The problem was that we need to apply the substitution, so that the
formal lifetime parameters get replaced with (unifiable)
free-lifetimes that can actually be fed into the constraint solver.
Also, refactor code os that substitution for `check_item` and
`check_method`, moving both down the control flow into `check_bare_fn`.
----
Finally, there was another (similar) spot where we needed to
substitute early-bound lifetimes when invoking an object method of a
trait.
This bench is meant to exercise libgreen, not libnative. It recently caused the
auto-linux-32-nopt-t bot to fail as no output was produced for an hour.
This was leaving Decls without the new spans; this is a minor change,
since literally nothing reads in the code base reads the span of a Decl
itself, always just its contents.
Apparently we had forgotten to do this for freebsd, causing possible problems
on FreeBSD 10. The discussion in #12324 has some more details about how it's
missing.
The libuv fs wrappers are very thin wrappers around the syscalls they correspond
to, and a notable worrisome case is the write syscall. This syscall is not
guaranteed to write the entire buffer provided, so we may have to continue
calling uv_fs_write if a short write occurs.
Closes#13130
# Summary
Changed `iter::Extendable` and `iter::FromIterator` to take a `Iterator` by value.
These functions always exhaust the passed `Iterator`, and are often used for transferring the values of a new `Iterator` directly into a data structure, so using them usually require the use of the `&mut` operator:
```
foo.extend(&mut bar.move_iter()); // Transfer content from bar into foo
let mut iter = ...;
foo.extend(&mut iter); // iter is now empty
```
This patch changes both the `FromIterator` and `Extendable` traits to take the iterator by value instead, which makes the common case of using these traits less heavy:
```
foo.extend(bar.move_iter()); // Transfer content from bar into foo
let iter = ...;
foo.extend(iter);
// iter is now inaccessible if it moved
// or unchanged if it was Pod and copied.
```
# Composability
This technically makes the traits less flexible from a type system pov, because they now require ownership.
However, because `Iterator` provides the `ByRef` adapter, there is no loss of functionality:
```
foo.extend(iter.by_ref()); // Same semantic as today, for the few situations where you need it.
```
# Motivation
This change makes it less painful to use iterators for shuffling values around between collections, which makes it more acceptable to always use them for this, enabling more flexibility.
For example, `foo.extend(bar.move_iter())` can generally be the fastest way to append an collections content to another one, without both needing to have the same type. Making this easy to use would allow the removal of special cased methods like `push_all()` on vectors. (See https://github.com/mozilla/rust/issues/12456)
I opened https://github.com/mozilla/rust/issues/13038 as well, to discuss this change in general if people object to it.
# Further work
This didn't change the `collect()` method to take by value `self`, nor any of the other adapters that also exhaust their iterator argument. For consistency this should probably happen in the long term, but for now this is too much trouble, as every use of them would need to be checked for accidentally changed semantic by going `&mut self -> self`. (which allows for the possibility that a `Pod` iterator got copied instead of exhausted without generating a type error by the change)
* Include tip given by Leo Testard in mailing list about labeled `break`
and `continue`:
https://mail.mozilla.org/pipermail/rust-dev/2014-March/009145.html
* cross-reference named lifetimes in tutorial -> lifetimes guide
* Broke named lifetimes section into two sub-sections.
* Added mention of `'static` lifetime.
This is not sufficient for finding the library directory for binary
installs, but it does make the build more complex by requiring
env vars be set to build rustc.
The previous dependency calculation was based on an arbitrary set of asterisks
at an arbitrary depth, but using the recursive version should be much more
robust in figuring out what's dependent.
Closes#13118
Rendered form available at http://docs.octayn.net/doc/
This moves derived impls to the bottom of the list, separate from the rest,
and collapses default methods that aren't overridden into an expandible
accordion.
Apparently we had forgotten to do this for freebsd, causing possible problems
on FreeBSD 10. The discussion in #12324 has some more details about how it's
missing.
The libuv fs wrappers are very thin wrappers around the syscalls they correspond
to, and a notable worrisome case is the write syscall. This syscall is not
guaranteed to write the entire buffer provided, so we may have to continue
calling uv_fs_write if a short write occurs.
Closes#13130
It was possible to borrow unsafe static items in static initializers.
This patch implements a small `Visitor` that walks static initializer's
expressions and checks borrows aliasability.
Fixes#13005
cc @nikomatsakis r?
Several things here:
* Cleanup
* Fix build targets for building .pkg so that it works and works for all hosts
* Adds support for nightly artifacts
* Put docs in a location suitable for upload to s3 during 'make dist'
* Add coverage of unix binary installers to 'distcheck'
* Fix 'distcheck'
* Change 'dist' to build source tarballs, binary tarballs and OS X packages
This commit contains an implementation of synchronous, bounded channels for
Rust. This is an implementation of the proposal made last January [1]. These
channels are built on mutexes, and currently focus on a working implementation
rather than speed. Receivers for sync channels have select() implemented for
them, but there is currently no implementation of select() for sync senders.
Rust will continue to provide both synchronous and asynchronous channels as part
of the standard distribution, there is no intent to remove asynchronous
channels. This flavor of channels is meant to provide an alternative to
asynchronous channels because like green tasks, asynchronous channels are not
appropriate for all situations.
[1] - https://mail.mozilla.org/pipermail/rust-dev/2014-January/007924.html
This commit contains an implementation of synchronous, bounded channels for
Rust. This is an implementation of the proposal made last January [1]. These
channels are built on mutexes, and currently focus on a working implementation
rather than speed. Receivers for sync channels have select() implemented for
them, but there is currently no implementation of select() for sync senders.
Rust will continue to provide both synchronous and asynchronous channels as part
of the standard distribution, there is no intent to remove asynchronous
channels. This flavor of channels is meant to provide an alternative to
asynchronous channels because like green tasks, asynchronous channels are not
appropriate for all situations.
[1] - https://mail.mozilla.org/pipermail/rust-dev/2014-January/007924.html
* Remove clone-ability from all primitives. All shared state will now come
from the usage of the primitives being shared, not the primitives being
inherently shareable. This allows for fewer allocations for stack-allocated
primitives.
* Add `Mutex<T>` and `RWLock<T>` which are stack-allocated primitives for purely
wrapping a piece of data
* Remove `RWArc<T>` in favor of `Arc<RWLock<T>>`
* Remove `MutexArc<T>` in favor of `Arc<Mutex<T>>`
* Shuffle around where things are located
* The `arc` module now only contains `Arc`
* A new `lock` module contains `Mutex`, `RWLock`, and `Barrier`
* A new `raw` module contains the primitive implementations of `Semaphore`,
`Mutex`, and `RWLock`
* The Deref/DerefMut trait was implemented where appropriate
* `CowArc` was removed, the functionality is now part of `Arc` and is tagged
with `#[experimental]`.
* The crate now has #[deny(missing_doc)]
* `Arc` now supports weak pointers
This is not a large-scale rewrite of the functionality contained within the
`sync` crate, but rather a shuffling of who does what an a thinner hierarchy of
ownership to allow for better composability.
Alex Crichton
bors
Felix S. Klock II
Tomas Sedovic
Huon Wilson
Brian Anderson
Marvin Löbel
Corey Richardson
Patrick Walton