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Author SHA1 Message Date
Mike Hommey
b647583c2d Use Alloc and Layout from core::heap.
94d1970bba moved the alloc::allocator
module to core::heap, moving e.g. Alloc and Layout out of the alloc
crate. While alloc::heap reexports them, it's better to use them from
where they really come from.
2018-04-02 16:06:19 +09:00
Simon Sapin
12b3630f62 Rename Box::into_non_null_raw to Box::into_raw_non_null 2018-01-20 11:09:23 +01:00
Simon Sapin
1772fa2aa1 Rename Box::*_nonnull_raw to *_non_null_raw 2018-01-20 11:09:23 +01:00
Simon Sapin
a2f878a084 Replace Box::{from,into}_unique with {from,into}_nonnull_raw
Thew `_raw` prefix is included because the fact that `Box`’s ownership
semantics are "dissolved" or recreated seem more important than the exact
parameter type or return type.
2018-01-20 11:09:22 +01:00
Simon Sapin
f19baf0977 Rename std::ptr::Shared to NonNull
`Shared` is now a deprecated `type` alias.

CC https://github.com/rust-lang/rust/issues/27730#issuecomment-352800629
2018-01-20 10:55:16 +01:00
Nikolai Vazquez
0fbcb7b873 Remove transmute in From<&str> impls for Arc/Rc 2017-12-25 17:04:45 -05:00
Simon Sapin
60dc10492c Move PhantomData<T> from Shared<T> to users of both Shared and #[may_dangle]
After discussing [1] today with @pnkfelix and @Gankro,
we concluded that it’s ok for drop checking not to be much smarter
than the current `#[may_dangle]` design which requires an explicit
unsafe opt-in.

[1] https://github.com/rust-lang/rust/issues/27730#issuecomment-316432083
2017-12-16 06:58:16 +01:00
Marco A L Barbosa
cbcaf736f8 Print the address of the pointed value in Pointer impl for Rc and Arc 2017-11-20 15:43:07 -02:00
steveklabnik
5e251b74eb Modify Rc/Arc language around mutability
There are a few exceptions to the rule that Arc/Rc are immutable. Rather
than dig into the details, add "generally" to hint at this difference,
as it's kind of a distraction at this point in the docs.

Additionally, Arc's docs were slightly different here generally, so add
in both the existing language and the exception.

Fixes #44105
2017-10-05 16:54:56 -04:00
Guillaume Gomez
b472b2829b Add missing links for Arc 2017-09-22 15:45:37 +02:00
Murarth
1cbb2b3a88 Implement Arc/Rc raw pointer conversions for ?Sized
* Add `T: ?Sized` bound to {`Arc`,`Rc`}::{`from_raw`,`into_raw`}
2017-09-16 16:34:13 -07:00
Murarth
8e0d01b432 Implement From<&[T]> and others for Arc/Rc
Implements RFC 1845, adding implementations of:

* `From<&[T]>` for `Rc<[T]>`
* `From<&str>` for `Rc<str>`
* `From<String>` for `Rc<str>`
* `From<Box<T: ?Sized>>` for `Rc<T>`
* `From<Vec<T>>` for `Rc<[T]>`
* and likewise for `Arc<_>`

Also removes now-obsolete internal methods `Rc::__from_array` and
`Rc::__from_str`, replacing their use with `Rc::from`.
2017-08-19 11:43:31 -07:00
Zack M. Davis
1b6c9605e4 use field init shorthand EVERYWHERE
Like #43008 (f668999), but _much more aggressive_.
2017-08-15 15:29:17 -07:00
Justin Browne
4b80d598c5 Fix broken links in Arc documentation 2017-08-10 18:03:22 -04:00
Simon Sapin
cbd2b6b484 Add Box::into_unique 2017-07-22 20:38:40 +02:00
Simon Sapin
0a08ad0443 Rename {NonZero,Shared,Unique}::new to new_unchecked 2017-07-22 20:38:16 +02:00
Jacques-Henri Jourdan
8416713240 Add test test_weak_count_locked 2017-07-20 01:59:01 +02:00
Jacques-Henri Jourdan
49edaf14fd Fix in weak_count in Arc.
In the case the weak count was locked, the weak_count function could
return usize::MAX. We need to test this condition manually.
2017-07-18 19:39:30 +02:00
Alex Crichton
695dee063b rustc: Implement the #[global_allocator] attribute
This PR is an implementation of [RFC 1974] which specifies a new method of
defining a global allocator for a program. This obsoletes the old
`#![allocator]` attribute and also removes support for it.

[RFC 1974]: https://github.com/rust-lang/rfcs/pull/197

The new `#[global_allocator]` attribute solves many issues encountered with the
`#![allocator]` attribute such as composition and restrictions on the crate
graph itself. The compiler now has much more control over the ABI of the
allocator and how it's implemented, allowing much more freedom in terms of how
this feature is implemented.

cc #27389
2017-07-05 14:37:01 -07:00
Murarth
eadda7665e Merge crate collections into alloc 2017-06-13 23:37:34 -07:00
Ulysse Carion
1af0cb1650 Use single quotes, and doc the Rc struct itself. 2017-06-05 12:07:54 -07:00
Ulysse Carion
8d9df99fbb Explicate what "Rc" and "Arc" stand for. 2017-06-03 21:47:26 -07:00
Nicolas Silva
dec23d41a6 Update Rc and Arc documentation.
It was decided in the RFC discussion https://github.com/rust-lang/rfcs/pull/1954 to make the function call syntax Rc::clone(&foo) the idiomatic way to clone a reference counted pointer (over the method call syntax foo.clone(). This change updates the documentation of Rc, Arc and their respoective Weak pointers to reflect it and bring more exposure to the existence of the function call syntax.
2017-05-22 16:15:37 +02:00
steveklabnik
2f6744c5fc Improve docs on Arc<T> and Send/Sync
This is something I always forget, so let's actually
explain in the docs.
2017-05-09 12:49:58 -04:00
Corey Farwell
6ace8a76cb Rollup merge of #41064 - Gankro:ptr-redux, r=alexcrichton
refactor NonZero, Shared, and Unique APIs

Major difference is that I removed Deref impls, as apparently LLVM has
trouble maintaining metadata with a `&ptr -> &ptr` API. This was cited
as a blocker for ever stabilizing this API. It wasn't that ergonomic
anyway.

* Added `get` to NonZero to replace Deref impl
* Added `ptr` getter to Shared/Unique to replace Deref impl
* Added Unique's `get` and `get_mut` conveniences to Shared
* Deprecated `as_mut_ptr` on Shared in favour of `ptr`

Note that Shared used to primarily expose only `*const` but there isn't
a good justification for that, so I made it `*mut`.
2017-05-05 17:35:24 -04:00
Alexis Beingessner
4ff583b116 fallout from NonZero/Unique/Shared changes 2017-05-04 23:54:54 -04:00
Bobby Holley
7b05b88ce7 Document the reasoning for the Acquire/Release handshake when dropping Arcs. 2017-05-03 11:02:23 -07:00
projektir
13c818fa27 Updating docs for std::sync::Weak #29377 2017-04-12 00:19:38 -04:00
steveklabnik
d1d9626e75 Fix up various links
The unstable book, libstd, libcore, and liballoc all needed some
adjustment.
2017-03-20 10:10:16 -04:00
Alex Crichton
1241a88fa9 Minor fixups to fix tidy errors 2017-03-17 13:28:53 -07:00
Aaron Turon
a8f4a1bd98 Stabilize rc_raw feature, closes #37197 2017-03-17 13:28:53 -07:00
Aaron Turon
10510aefb1 Stabilize ptr_eq feature, closes #36497 2017-03-17 13:28:37 -07:00
Steve Klabnik
b4cd3d9206 Revert "Fix up links"
This reverts commit 7f1d1c6d9a.

The original commit was created because mdBook and rustdoc had
different generation algorithms for header links; now with
https://github.com/rust-lang/rust/pull/39966 , the algorithms
are the same. So let's undo this change.

... when I came across this problem, I said "eh, this isn't fun,
but it doesn't take that long." I probably should have just actually
taken the time to fix upstream, given that they were amenable. Oh
well!
2017-02-20 09:09:12 -05:00
Steve Klabnik
7f1d1c6d9a Fix up links
mdbook and rustdoc generate links differently, so we need to change all
these links.
2017-02-13 13:41:24 -05:00
Oliver Middleton
09b3903aec Fix a few links in the docs 2017-01-27 18:08:51 +00:00
Seo Sanghyeon
d350c9b15f Rollup merge of #38664 - apasel422:may-dangle, r=pnkfelix
Replace uses of `#[unsafe_destructor_blind_to_params]` with `#[may_dangle]`

CC #34761

r? @pnkfelix
2017-01-10 20:27:41 +09:00
Andrew Paseltiner
ca9b07bbc9
Replace uses of #[unsafe_destructor_blind_to_params] with #[may_dangle]
CC #34761
2016-12-28 17:47:10 -05:00
Guillaume Gomez
f4bd94f779 Add missing urls in Arc docs 2016-12-24 10:51:46 +01:00
Aaron Turon
b02ed1e1d4 Stabilize:
- `std::rc::Rc::{strong_count, weak_count}`
- `std::sync::Arc::{strong_count, weak_count}`

Deprecate:

- `std::rc::Rc::{would_unwrap, is_unique}`
2016-12-15 10:56:55 -08:00
bors
02aa42860d Auto merge of #37657 - steveklabnik:rollup, r=steveklabnik
Rollup of 8 pull requests

- Successful merges: #35102, #37425, #37483, #37588, #37601, #37610, #37650, #37652
- Failed merges:
2016-11-09 05:35:23 -08:00
bors
0491a23177 Auto merge of #37192 - cristicbz:rust-rc-into-raw, r=brson
Add `{into,from}_raw` to Rc and Arc

These methods convert to and from a `*const T` for `Rc` and `Arc` similar to the way they work on `Box`. The only slight complication is that `from_raw` needs to offset the pointer back to find the beginning of the `RcBox`/`ArcInner`.

I felt this is a fairly small addition, filling in a gap (when compared to `Box`) so it wouldn't need an RFC. The motivation is primarily for FFI.

(I'll create an issue and update a PR with the issue number if reviewers agree with the change in principle **Edit: done #37197**)

~~Edit: This was initially `{into,from}_raw` but concerns were raised about the possible footgun if mixed with the methods of the same name of `Box`.~~

Edit: This was went from `{into,from}_raw` to `{into,from}_inner_raw` then back to `{into,from}_raw` during review.
2016-11-08 12:13:45 -08:00
Simon Sapin
93571537e3 More proeminent warning in Arc::{strong,weak}_count docs. 2016-11-08 20:15:20 +01:00
Daan Sprenkels
99aaccd32f Add a comment to Arc::MAX_REFCOUNT
The constant name `MAX_REFCOUNT` suggests that the value is a
_hard_ limit on the amount of references to an `Arc`. This is
a more soft limit however. This commit adds a comment to the
constant to annotate this.

See also: PR #37605
2016-11-06 20:07:28 +01:00
Cristi Cobzarenco
651cf58f2e Add {into,from}_raw to Rc and Arc 2016-11-05 00:50:41 +00:00
Keegan McAllister
05b6d68619 Update Arc docs to match new Rc docs 2016-10-04 08:34:24 -07:00
Brian Anderson
9c4a01ee9e Ignore lots and lots of std tests on emscripten 2016-09-30 14:02:48 -07:00
Brian Anderson
3b49c60ab7 Remove stage0 hacks 2016-09-28 23:17:56 +00:00
Simon Sapin
eba2270a9c Add pub fn ptr_eq(this: &Self, other: &Self) -> bool to Rc and Arc.
Servo and Kuchiki have had helper functions doing this for some time.
2016-09-15 18:48:16 +02:00
athulappadan
41881e85bd Documentation for default types modified 2016-09-11 22:58:01 +05:30
athulappadan
49e77dbf25 Documentation of what does for each type 2016-09-11 17:00:09 +05:30