Commit Graph

6515 Commits

Author SHA1 Message Date
Tshepang Lekhonkhobe
d5d6de99b1 doc: remove incomplete sentence 2015-01-04 08:44:31 +02:00
bors
c6c786671d auto merge of #20490 : japaric/rust/assoc-types, r=aturon
closes #20486 
closes #20474 
closes #20441

[breaking-change]

The `Index[Mut]` traits now have one less input parameter, as the return type of the indexing operation is an associated type. This breaks all existing implementations.

---

binop traits (`Add`, `Sub`, etc) now have an associated type for their return type. Also, the RHS input parameter now defaults to `Self` (except for the `Shl` and `Shr` traits). For example, the `Add` trait now looks like this:

``` rust
trait Add<Rhs=Self> {
    type Output;

    fn add(self, Rhs) -> Self::Output;
}
```

The `Neg` and `Not` traits now also have an associated type for their return type.

This breaks all existing implementations of these traits.

---
Affected traits:

- `Iterator { type Item }`
- `IteratorExt` no input/output types, uses `<Self as Iterator>::Item` in its methods
- `DoubleEndedIterator` no input/output types, uses `<Self as Iterator>::Item` in its methods
- `DoubleEndedIteratorExt` no input/output types, uses `<Self as Iterator>::Item` in its methods
- `RandomAccessIterator` no input/output types
- `ExactSizeIterator` no input/output types, uses `<Self as Iterator>::Item` in its methods

This breaks all the implementations of these traits.
2015-01-04 00:50:59 +00:00
Jorge Aparicio
4bfaa93978 std: fix fallout 2015-01-03 16:30:49 -05:00
Jorge Aparicio
7d3c5f020e use assoc types in unop traits 2015-01-03 16:29:22 -05:00
Jorge Aparicio
99017f82b6 use assoc types in binop traits 2015-01-03 16:29:19 -05:00
Akos Kiss
6e5fb8bd1b Initial version of AArch64 support.
Adds AArch64 knowledge to:
* configure,
* make files,
* sources,
* tests, and
* documentation.
2015-01-03 15:16:10 +00:00
Jorge Aparicio
7095dd0070 core: merge IteratorPairExt into IteratorExt 2015-01-03 09:34:05 -05:00
Jorge Aparicio
6002c13f9b Register new snapshots 2015-01-03 09:34:05 -05:00
Jorge Aparicio
de1446680c core: merge DoubleEndedIteratorExt into IteratorExt 2015-01-03 09:34:05 -05:00
Jorge Aparicio
1971a24441 std: fix fallout 2015-01-03 09:34:04 -05:00
bors
9c3e6082e7 auto merge of #20154 : P1start/rust/qualified-assoc-type-generics, r=nikomatsakis
This modifies `Parser::eat_lt` to always split up `<<`s, instead of doing so only when a lifetime name followed or the `force` parameter (now removed) was `true`. This is because `Foo<<TYPE` is now a valid start to a type, whereas previously only `Foo<<LIFETIME` was valid.

This is a [breaking-change]. Change code that looks like this:

```rust
let x = foo as bar << 13;
```

to use parentheses, like this:

```rust
let x = (foo as bar) << 13;
```

Closes #17362.
2015-01-03 03:25:21 +00:00
Alex Crichton
340f3fd7a9 rollup merge of #20410: japaric/assoc-types
Conflicts:
	src/liballoc/lib.rs
	src/libcollections/lib.rs
	src/libcollections/slice.rs
	src/libcore/ops.rs
	src/libcore/prelude.rs
	src/libcore/ptr.rs
	src/librustc/middle/traits/project.rs
	src/libstd/c_str.rs
	src/libstd/io/mem.rs
	src/libstd/io/mod.rs
	src/libstd/lib.rs
	src/libstd/path/posix.rs
	src/libstd/path/windows.rs
	src/libstd/prelude.rs
	src/libstd/rt/exclusive.rs
	src/libsyntax/lib.rs
	src/test/compile-fail/issue-18566.rs
	src/test/run-pass/deref-mut-on-ref.rs
	src/test/run-pass/deref-on-ref.rs
	src/test/run-pass/dst-deref-mut.rs
	src/test/run-pass/dst-deref.rs
	src/test/run-pass/fixup-deref-mut.rs
	src/test/run-pass/issue-13264.rs
	src/test/run-pass/overloaded-autoderef-indexing.rs
2015-01-02 13:51:50 -08:00
Alex Crichton
4459b1dced rollup merge of #20341: nikomatsakis/impl-trait-for-trait-2
Conflicts:
	src/librustc/middle/traits/mod.rs
	src/libstd/io/mod.rs
	src/test/run-pass/builtin-superkinds-self-type.rs
2015-01-02 11:13:05 -08:00
Alex Crichton
e921e3f045 Rollup test fixes and rebase conflicts 2015-01-02 10:50:13 -08:00
Alex Crichton
735c308aed rollup merge of #20416: nikomatsakis/coherence
Conflicts:
	src/test/run-pass/issue-15734.rs
	src/test/run-pass/issue-3743.rs
2015-01-02 09:23:42 -08:00
Jorge Aparicio
64b7c22c46 core: use assoc types in Deref[Mut] 2015-01-02 12:19:59 -05:00
Alex Crichton
4b0e084aa1 rollup merge of #20354: alexcrichton/second-pass-thread_local
Conflicts:
	src/libstd/sys/common/thread_info.rs
2015-01-02 09:19:45 -08:00
Alex Crichton
009ec5d2b0 rollup merge of #20315: alexcrichton/std-sync
Conflicts:
	src/libstd/rt/exclusive.rs
	src/libstd/sync/barrier.rs
	src/libstd/sys/unix/pipe.rs
	src/test/bench/shootout-binarytrees.rs
	src/test/bench/shootout-fannkuch-redux.rs
2015-01-02 09:19:00 -08:00
Alex Crichton
074996d6f9 rollup merge of #20377: alexcrichton/issue-20352 2015-01-02 09:16:26 -08:00
Alex Crichton
8b7d032014 rollup merge of #20273: alexcrichton/second-pass-comm
Conflicts:
	src/doc/guide.md
	src/libcollections/bit.rs
	src/libcollections/btree/node.rs
	src/libcollections/slice.rs
	src/libcore/ops.rs
	src/libcore/prelude.rs
	src/librand/rand_impls.rs
	src/librustc/middle/check_match.rs
	src/librustc/middle/infer/region_inference/mod.rs
	src/librustc_driver/lib.rs
	src/librustdoc/test.rs
	src/libstd/bitflags.rs
	src/libstd/io/comm_adapters.rs
	src/libstd/io/mem.rs
	src/libstd/io/mod.rs
	src/libstd/io/net/pipe.rs
	src/libstd/io/net/tcp.rs
	src/libstd/io/net/udp.rs
	src/libstd/io/pipe.rs
	src/libstd/io/process.rs
	src/libstd/io/stdio.rs
	src/libstd/io/timer.rs
	src/libstd/io/util.rs
	src/libstd/macros.rs
	src/libstd/os.rs
	src/libstd/path/posix.rs
	src/libstd/path/windows.rs
	src/libstd/prelude/v1.rs
	src/libstd/rand/mod.rs
	src/libstd/rand/os.rs
	src/libstd/sync/barrier.rs
	src/libstd/sync/condvar.rs
	src/libstd/sync/future.rs
	src/libstd/sync/mpsc/mod.rs
	src/libstd/sync/mpsc/mpsc_queue.rs
	src/libstd/sync/mpsc/select.rs
	src/libstd/sync/mpsc/spsc_queue.rs
	src/libstd/sync/mutex.rs
	src/libstd/sync/once.rs
	src/libstd/sync/rwlock.rs
	src/libstd/sync/semaphore.rs
	src/libstd/sync/task_pool.rs
	src/libstd/sys/common/helper_thread.rs
	src/libstd/sys/unix/process.rs
	src/libstd/sys/unix/timer.rs
	src/libstd/sys/windows/c.rs
	src/libstd/sys/windows/timer.rs
	src/libstd/sys/windows/tty.rs
	src/libstd/thread.rs
	src/libstd/thread_local/mod.rs
	src/libstd/thread_local/scoped.rs
	src/libtest/lib.rs
	src/test/auxiliary/cci_capture_clause.rs
	src/test/bench/shootout-reverse-complement.rs
	src/test/bench/shootout-spectralnorm.rs
	src/test/compile-fail/array-old-syntax-2.rs
	src/test/compile-fail/bind-by-move-no-guards.rs
	src/test/compile-fail/builtin-superkinds-self-type.rs
	src/test/compile-fail/comm-not-freeze-receiver.rs
	src/test/compile-fail/comm-not-freeze.rs
	src/test/compile-fail/issue-12041.rs
	src/test/compile-fail/unsendable-class.rs
	src/test/run-pass/builtin-superkinds-capabilities-transitive.rs
	src/test/run-pass/builtin-superkinds-capabilities-xc.rs
	src/test/run-pass/builtin-superkinds-capabilities.rs
	src/test/run-pass/builtin-superkinds-self-type.rs
	src/test/run-pass/capturing-logging.rs
	src/test/run-pass/closure-bounds-can-capture-chan.rs
	src/test/run-pass/comm.rs
	src/test/run-pass/core-run-destroy.rs
	src/test/run-pass/drop-trait-enum.rs
	src/test/run-pass/hashmap-memory.rs
	src/test/run-pass/issue-13494.rs
	src/test/run-pass/issue-3609.rs
	src/test/run-pass/issue-4446.rs
	src/test/run-pass/issue-4448.rs
	src/test/run-pass/issue-8827.rs
	src/test/run-pass/issue-9396.rs
	src/test/run-pass/ivec-tag.rs
	src/test/run-pass/rust-log-filter.rs
	src/test/run-pass/send-resource.rs
	src/test/run-pass/send-type-inference.rs
	src/test/run-pass/sendable-class.rs
	src/test/run-pass/spawn-types.rs
	src/test/run-pass/task-comm-0.rs
	src/test/run-pass/task-comm-10.rs
	src/test/run-pass/task-comm-11.rs
	src/test/run-pass/task-comm-13.rs
	src/test/run-pass/task-comm-14.rs
	src/test/run-pass/task-comm-15.rs
	src/test/run-pass/task-comm-16.rs
	src/test/run-pass/task-comm-3.rs
	src/test/run-pass/task-comm-4.rs
	src/test/run-pass/task-comm-5.rs
	src/test/run-pass/task-comm-6.rs
	src/test/run-pass/task-comm-7.rs
	src/test/run-pass/task-comm-9.rs
	src/test/run-pass/task-comm-chan-nil.rs
	src/test/run-pass/task-spawn-move-and-copy.rs
	src/test/run-pass/task-stderr.rs
	src/test/run-pass/tcp-accept-stress.rs
	src/test/run-pass/tcp-connect-timeouts.rs
	src/test/run-pass/tempfile.rs
	src/test/run-pass/trait-bounds-in-arc.rs
	src/test/run-pass/trivial-message.rs
	src/test/run-pass/unique-send-2.rs
	src/test/run-pass/unique-send.rs
	src/test/run-pass/unwind-resource.rs
2015-01-02 09:15:54 -08:00
Jorge Aparicio
cc5ecaf765 merge *SliceExt traits, use assoc types in SliceExt, Raw[Mut]Ptr 2015-01-02 12:07:04 -05:00
Niko Matsakis
1b3734f8ae Fix fallout from change, adding explicit Sized annotations where necessary. 2015-01-02 12:06:59 -05:00
Steve Klabnik
76e3bc2338 Properly deal with Ordering in the guide
Now that it's been removed from the prelude, we need to treat things differently.

Fixes #17967
2015-01-02 08:54:06 -08:00
Alex Crichton
56290a0044 std: Stabilize the prelude module
This commit is an implementation of [RFC 503][rfc] which is a stabilization
story for the prelude. Most of the RFC was directly applied, removing reexports.
Some reexports are kept around, however:

* `range` remains until range syntax has landed to reduce churn.
* `Path` and `GenericPath` remain until path reform lands. This is done to
  prevent many imports of `GenericPath` which will soon be removed.
* All `io` traits remain until I/O reform lands so imports can be rewritten all
  at once to `std::io::prelude::*`.

This is a breaking change because many prelude reexports have been removed, and
the RFC can be consulted for the exact list of removed reexports, as well as to
find the locations of where to import them.

[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0503-prelude-stabilization.md
[breaking-change]

Closes #20068
2015-01-02 08:54:06 -08:00
bors
71b46b18a2 auto merge of #20356 : Gankro/rust/stab, r=aturon
This stabilizes most of libcollections, carefully avoiding sections of API which are being managed in other PRs. APIs which are not stable are marked explicitly unstable with a reason.

Deprecates:

* DList
  * rotate_forward
  * rotate_backward
  * prepend
  * insert_when
  * insert_ordered
  * merge

* VecMap
  * update
  * update_with_key

* Renames and newtypes the Bitv and BitvSet iterators to match conventions.

* Removes the Copy impl from DList's Iter.

as such this is a

[breaking-change]
2015-01-02 15:51:25 +00:00
Niko Matsakis
c61a0092bc Fix orphan checking (cc #19470). (This is not a complete fix of #19470 because of the backwards compatibility feature gate.)
This is a [breaking-change]. The new rules require that, for an impl of a trait defined
in some other crate, two conditions must hold:

1. Some type must be local.
2. Every type parameter must appear "under" some local type.

Here are some examples that are legal:

```rust
struct MyStruct<T> { ... }

// Here `T` appears "under' `MyStruct`.
impl<T> Clone for MyStruct<T> { }

// Here `T` appears "under' `MyStruct` as well. Note that it also appears
// elsewhere.
impl<T> Iterator<T> for MyStruct<T> { }
```

Here is an illegal example:

```rust
// Here `U` does not appear "under" `MyStruct` or any other local type.
// We call `U` "uncovered".
impl<T,U> Iterator<U> for MyStruct<T> { }
```

There are a couple of ways to rewrite this last example so that it is
legal:

1. In some cases, the uncovered type parameter (here, `U`) should be converted
   into an associated type. This is however a non-local change that requires access
   to the original trait. Also, associated types are not fully baked.
2. Add `U` as a type parameter of `MyStruct`:
   ```rust
   struct MyStruct<T,U> { ... }
   impl<T,U> Iterator<U> for MyStruct<T,U> { }
   ```
3. Create a newtype wrapper for `U`
   ```rust
   impl<T,U> Iterator<Wrapper<U>> for MyStruct<T,U> { }
   ```

Because associated types are not fully baked, which in the case of the
`Hash` trait makes adhering to this rule impossible, you can
temporarily disable this rule in your crate by using
`#![feature(old_orphan_check)]`. Note that the `old_orphan_check`
feature will be removed before 1.0 is released.
2015-01-02 04:06:09 -05:00
Alex Crichton
e423fcf0e0 std: Enforce Unicode in fmt::Writer
This commit is an implementation of [RFC 526][rfc] which is a change to alter
the definition of the old `fmt::FormatWriter`. The new trait, renamed to
`Writer`, now only exposes one method `write_str` in order to guarantee that all
implementations of the formatting traits can only produce valid Unicode.

[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0526-fmt-text-writer.md

One of the primary improvements of this patch is the performance of the
`.to_string()` method by avoiding an almost-always redundant UTF-8 check. This
is a breaking change due to the renaming of the trait as well as the loss of the
`write` method, but migration paths should be relatively easy:

* All usage of `write` should move to `write_str`. If truly binary data was
  being written in an implementation of `Show`, then it will need to use a
  different trait or an altogether different code path.

* All usage of `write!` should continue to work as-is with no modifications.

* All usage of `Show` where implementations just delegate to another should
  continue to work as-is.

[breaking-change]

Closes #20352
2015-01-01 22:04:46 -08:00
Alex Crichton
f3a7ec7028 std: Second pass stabilization of sync
This pass performs a second pass of stabilization through the `std::sync`
module, avoiding modules/types that are being handled in other PRs (e.g.
mutexes, rwlocks, condvars, and channels).

The following items are now stable

* `sync::atomic`
* `sync::atomic::ATOMIC_BOOL_INIT` (was `INIT_ATOMIC_BOOL`)
* `sync::atomic::ATOMIC_INT_INIT` (was `INIT_ATOMIC_INT`)
* `sync::atomic::ATOMIC_UINT_INIT` (was `INIT_ATOMIC_UINT`)
* `sync::Once`
* `sync::ONCE_INIT`
* `sync::Once::call_once` (was `doit`)
  * C == `pthread_once(..)`
  * Boost == `call_once(..)`
  * Windows == `InitOnceExecuteOnce`
* `sync::Barrier`
* `sync::Barrier::new`
* `sync::Barrier::wait` (now returns a `bool`)
* `sync::Semaphore::new`
* `sync::Semaphore::acquire`
* `sync::Semaphore::release`

The following items remain unstable

* `sync::SemaphoreGuard`
* `sync::Semaphore::access` - it's unclear how this relates to the poisoning
                              story of mutexes.
* `sync::TaskPool` - the semantics of a failing task and whether a thread is
                     re-attached to a thread pool are somewhat unclear, and the
                     utility of this type in `sync` is question with respect to
                     the jobs of other primitives. This type will likely become
                     stable or move out of the standard library over time.
* `sync::Future` - futures as-is have yet to be deeply re-evaluated with the
                   recent core changes to Rust's synchronization story, and will
                   likely become stable in the future but are unstable until
                   that time comes.

[breaking-change]
2015-01-01 22:02:59 -08:00
Nick Cameron
2c92ddeda7 More fallout 2015-01-02 10:28:19 +13:00
Nick Cameron
7e2b9ea235 Fallout - change array syntax to use ; 2015-01-02 10:28:19 +13:00
Jorge Aparicio
12dd7781d6 std: unbox closures used in let bindings 2014-12-31 22:50:27 -05:00
Jorge Aparicio
371f04d433 std: unbox closures used in function arguments 2014-12-31 22:50:25 -05:00
Alexis Beingessner
8dbaa7105e stabilize more of collections 2014-12-31 18:54:08 -05:00
Alex Crichton
be11aa6d70 std: Second pass stabilization for thread_local
This commit performs a second pass over the `std::thread_local` module. Most of
the functionality remains explicitly unstable, but the specific actions taken
were:

* `thread_local` is now stable
* `thread_local!` is now stable
* `thread_local::Key` is now stable
* `thread_local::Key::with` is now stable
* `thread_local::Key::destroyed` is deprecated in favor of a more general
  `state` function
* `thread_local::Key::state` was added to query the three states that a key can
  be in: uninitialized, valid, or destroyed. This function, and the
  corresponding `State` enum, are both marked unstable as we may wish to expand
  it later on.
* `thread_local::scoped` is entirely unstable. There hasn't been a whole lot of
  usage of this module in the standard distribution, so it remains unstable at
  this time.

Note that while the structure `Key` is marked stable, it is currently forced to
expose all of its implementation details due to the use of
construction-via-macro. The use of construction-via-macro is currently required
in order to place the `#[thread_local]` attribute on static in a
platform-specific manner. These stability attributes were assigned assuming that
it will be acceptable to tweak the implementation of `Key` in the future.
2014-12-31 15:50:28 -08:00
Alex Crichton
aec67c2ee0 Revert "std: Re-enable at_exit()"
This reverts commit 9e224c2bf1.

Conflicts:
	src/libstd/sys/windows/os.rs
2014-12-31 10:20:31 -08:00
Alex Crichton
582cba183f Test fixes and rebase conflicts 2014-12-31 08:33:13 -08:00
Alex Crichton
67d13883f8 rollup merge of #20061: aturon/stab-2-vec-slice
Conflicts:
	src/libcollections/slice.rs
	src/libcollections/vec.rs
	src/libstd/sys/windows/os.rs
2014-12-30 18:51:51 -08:00
Aaron Turon
6abfac083f Fallout from stabilization 2014-12-30 17:06:08 -08:00
Alex Crichton
dd0f29ad0f rollup merge of #20353: alexcrichton/snapshots 2014-12-30 16:26:24 -08:00
Alex Crichton
38f9805f11 rollup merge of #20348: frewsxcv/rm-reexports
Part of #19253

[breaking-change]
2014-12-30 16:26:22 -08:00
Alex Crichton
ecf48fb469 rollup merge of #20329: vhbit/ios-rand-fix 2014-12-30 16:26:16 -08:00
Alex Crichton
a8820f7a2d rollup merge of #20328: huonw/attack-of-the-clones
It's useful to be able to save state.
2014-12-30 16:26:15 -08:00
Alex Crichton
d1a19e8303 rollup merge of #20321: epall/patch-1
In f436f9ca2, the Send and Sync traits became `unsafe`. They were updated for `target_arch = x86` and others, but `mips` was missed.
2014-12-30 16:26:08 -08:00
Alex Crichton
b936fb3d16 rollup merge of #20286: murarth/get-address-name 2014-12-30 16:26:02 -08:00
Alex Crichton
836bcb6ef4 rollup merge of #20065: aturon/stab-2-cmp
This patch marks `PartialEq`, `Eq`, `PartialOrd`, and `Ord` as
`#[stable]`, as well as the majorify of manual implementaitons of these
traits. The traits match the [reform RFC](https://github.com/rust-lang/rfcs/pull/439).

In the future, many of the impls should be generalized; see #20063.
However, there is no problem stabilizing the less general impls, since
generalizing later is not a breaking change.

r? @alexcrichton
2014-12-30 16:25:47 -08:00
Alex Crichton
262c1efe63 Register new snapshots 2014-12-30 15:04:43 -08:00
Aaron Turon
b94bcbf56e Stabilize cmp
This patch marks `PartialEq`, `Eq`, `PartialOrd`, and `Ord` as
`#[stable]`, as well as the majorify of manual implementaitons of these
traits. The traits match the [reform
RFC](https://github.com/rust-lang/rfcs/pull/439).

Along the way, two changes are made:

* The recently-added type parameters for `Ord` and `Eq` are
  removed. These were mistakenly added while adding them to `PartialOrd`
  and `PartialEq`, but they don't make sense given the laws that are
  required for (and use cases for) `Ord` and `Eq`.

* More explicit laws are added for `PartialEq` and `PartialOrd`,
  connecting them to their associated mathematical concepts.

In the future, many of the impls should be generalized; see
since generalizing later is not a breaking change.

[breaking-change]
2014-12-30 14:44:26 -08:00
Alex Crichton
9e224c2bf1 std: Re-enable at_exit()
The new semantics of this function are that the callbacks are run when the *main
thread* exits, not when all threads have exited. This implies that other threads
may still be running when the `at_exit` callbacks are invoked and users need to
be prepared for this situation.

Users in the standard library have been audited in accordance to these new rules
as well.

Closes #20012
2014-12-30 14:33:59 -08:00
Aaron Turon
e91d810b9b Libs: Unify concat and concat_vec
We've long had traits `StrVector` and `VectorVector` providing
`concat`/`connect` and `concat_vec`/`connect_vec` respectively. The
reason for the distinction is that coherence rules did not used to be
robust enough to allow impls on e.g. `Vec<String>` versus `Vec<&[T]>`.

This commit consolidates the traits into a single `SliceConcatExt` trait
provided by `slice` and the preldue (where it replaces `StrVector`,
which is removed.)

[breaking-change]
2014-12-30 12:02:22 -08:00
Aaron Turon
9d919d2302 Second pass stabilization: vec
This commit takes a second pass through the `vec` module to
stabilize its API. The changes are as follows:

**Stable**:

* `dedup`
* `from_raw_parts`
* `insert`
* `into_iter`
* `is_empty`
* `remove`
* `reserve_exact`
* `reserve`
* `retain`
* `swap_remove`
* `truncate`

**Deprecated**:

* `from_fn`, `from_elem`, `grow_fn` and `grow`, all deprecated in
  favor of iterators. See https://github.com/rust-lang/rfcs/pull/509

* `partition`, `partitioned`, deprecated in favor of a new, more
  general iterator consumer called `partition`.

* `unzip`, deprecated in favor of a new, more general iterator
  consumer called `unzip`.

A few remaining methods are left at experimental status.

[breaking-change]
2014-12-30 12:02:22 -08:00