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2018-05-31Update `Arc` and `Rc` to use `NonNull::cast` to cast the inner pointersJeremy Fitzhardinge-9/+3
This avoids an `unsafe` block in each case.
2018-05-30Pass a `Layout` to `oom`Mike Hommey-1/+1
As discussed in https://github.com/rust-lang/rust/issues/49668#issuecomment-384893456 and subsequent, there are use-cases where the OOM handler needs to know the size of the allocation that failed. The alignment might also be a cause for allocation failure, so providing it as well can be useful.
2018-04-27Auto merge of #50097 - glandium:box_free, r=nikomatsakisbors-2/+3
Partial future-proofing for Box<T, A> In some ways, this is similar to @eddyb's PR #47043 that went stale, but doesn't cover everything. Notably, this still leaves Box internalized as a pointer in places, so practically speaking, only ZSTs can be practically added to the Box type with the changes here (the compiler ICEs otherwise). The Box type is not changed here, that's left for the future because I want to test that further first, but this puts things in place in a way that hopefully will make things easier.
2018-04-25Switch box_free to take the destructured contents of BoxMike Hommey-2/+3
As of now, Box only contains a Unique pointer, so this is the sole argument to box_free. Consequently, we remove the code supporting the previous box_free signature. We however keep the old definition for bootstrapping purpose.
2018-04-22Replace GlobalAlloc::oom with a lang itemSteven Fackler-2/+2
2018-04-12Rename alloc::Void to alloc::OpaqueSimon Sapin-5/+5
2018-04-12Use NonNull<Void> instead of *mut u8 in the Alloc traitMike Hommey-11/+7
Fixes #49608
2018-04-12Remove the now-unit-struct AllocErr parameter of oom()Simon Sapin-1/+1
2018-04-12Actually deprecate the Heap typeSimon Sapin-7/+6
2018-04-02Use Alloc and Layout from core::heap.Mike Hommey-1/+2
94d1970bba87f2d2893f6e934e4c3f02ed50604d 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.
2018-01-20Rename Box::into_non_null_raw to Box::into_raw_non_nullSimon Sapin-2/+2
2018-01-20Rename Box::*_nonnull_raw to *_non_null_rawSimon Sapin-2/+2
2018-01-20Replace Box::{from,into}_unique with {from,into}_nonnull_rawSimon Sapin-4/+4
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.
2018-01-20Rename std::ptr::Shared to NonNullSimon Sapin-10/+10
`Shared` is now a deprecated `type` alias. CC https://github.com/rust-lang/rust/issues/27730#issuecomment-352800629
2017-12-25Remove transmute in From<&str> impls for Arc/RcNikolai Vazquez-1/+2
2017-12-16Move PhantomData<T> from Shared<T> to users of both Shared and #[may_dangle]Simon Sapin-6/+10
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
2017-11-21fix some typosMartin Lindhe-1/+1
2017-11-20Print the address of the pointed value in Pointer impl for Rc and ArcMarco A L Barbosa-1/+1
2017-10-05Modify Rc/Arc language around mutabilitysteveklabnik-1/+1
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
2017-09-17Rollup merge of #44073 - murarth:rc-into-raw-unsized, r=alexcrichtonTim Neumann-7/+35
Implement `Arc`/`Rc` raw pointer conversions for `?Sized` * Add `T: ?Sized` bound to {`Arc`,`Rc`}::{`from_raw`,`into_raw`}
2017-09-16Implement `Arc`/`Rc` raw pointer conversions for `?Sized`Murarth-7/+35
* Add `T: ?Sized` bound to {`Arc`,`Rc`}::{`from_raw`,`into_raw`}
2017-09-15alloc: Add tracking issue for rc_downcastUlrik Sverdrup-1/+1
2017-09-03alloc: Implement downcast Rc<Any> -> Rc<T>Ulrik Sverdrup-0/+61
Implement downcast the like it exists for Box. The implementation avoids using into_raw/from_raw, because the pointer arithmetic which should cancel does not seem to optimize out at the moment. Since Rc<T> is never Send, only Rc<Any> and not Rc<Any + Send> implements downcast.
2017-08-19Implement `From<&[T]>` and others for `Arc`/`Rc`Murarth-60/+291
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`.
2017-08-15use field init shorthand EVERYWHEREZack M. Davis-1/+1
Like #43008 (f668999), but _much more aggressive_.
2017-07-22Add Box::into_uniqueSimon Sapin-13/+11
2017-07-22Rename {NonZero,Shared,Unique}::new to new_uncheckedSimon Sapin-5/+5
2017-07-18Fix erroneous reference to Arc instead of RcLynn-1/+1
2017-07-05rustc: Implement the #[global_allocator] attributeAlex Crichton-5/+6
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
2017-06-22Fix ref as mutable ref in std::rc::Rc docLetheed-1/+1
2017-06-16Introduce tidy lint to check for inconsistent tracking issuesest31-2/+2
This commit * Refactors the collect_lib_features function to work in a non-checking mode (no bad pointer needed, and list of lang features). * Introduces checking whether unstable/stable tags for a given feature have inconsistent tracking issues. * Fixes such inconsistencies throughout the codebase.
2017-06-05Use single quotes, and doc the Rc struct itself.Ulysse Carion-3/+4
2017-06-03Explicate what "Rc" and "Arc" stand for.Ulysse Carion-1/+2
2017-05-22Update Rc and Arc documentation.Nicolas Silva-15/+33
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.
2017-05-04fallout from NonZero/Unique/Shared changesAlexis Beingessner-28/+22
2017-04-23Auto merge of #41437 - cuviper:remove-unstable-deprecated, r=alexcrichtonbors-18/+1
Remove items that are unstable and deprecated This removes unstable items that have been deprecated for more than one cycle. - Since 1.16.0, `#![feature(enumset)]` - All of `mod collections::enum_set` - Since 1.15.0, `#![feature(borrow_state)]` - `cell::BorrowState` - `RefCell::borrow_state()` - Since 1.15.0, `#![feature(is_unique)]` - `Rc::is_unique()` (made private like `Arc::is_unique()`) - Since 1.15.0, `#![feature(rc_would_unwrap)]` - `Rc::would_wrap()` - Since 1.13.0, `#![feature(binary_heap_extras)]` - `BinaryHeap::push_pop()` - `BinaryHeap::replace()` - Since 1.12.0, `#![feature(as_unsafe_cell)]` - `Cell::as_unsafe_cell()` - `RefCell::as_unsafe_cell()` - Since 1.12.0, `#![feature(map_entry_recover_keys)]` - `btree_map::OccupiedEntry::remove_pair()` - `hash_map::OccupiedEntry::remove_pair()` - Since 1.11.0, `#![feature(float_extras)]` - `Float::nan()` - `Float::infinity()` - `Float::neg_infinity()` - `Float::neg_zero()` - `Float::zero()` - `Float::one()` - `Float::integer_decode()` - `f32::integer_decode()` - `f32::ldexp()` - `f32::frexp()` - `f32::next_after()` - `f64::integer_decode()` - `f64::ldexp()` - `f64::frexp()` - `f64::next_after()` - Since 1.11.0, `#![feature(zero_one)]` - `num::Zero` - `num::One`
2017-04-22cache attributes of items from foreign cratesAriel Ben-Yehuda-2/+33
this avoids parsing item attributes on each call to `item_attrs`, which takes off 33% (!) of translation time and 50% (!) of trans-item collection time.
2017-04-20Privatize Rc::is_uniqueJosh Stone-5/+1
[unstable, deprecated since 1.15.0]
2017-04-20Remove Rc::would_wrapJosh Stone-13/+0
[unstable, deprecated since 1.15.0]
2017-04-12Updating docs for std::rc::Rcprojektir-33/+33
2017-03-20Fix up various linkssteveklabnik-1/+1
The unstable book, libstd, libcore, and liballoc all needed some adjustment.
2017-03-17Stabilize rc_raw feature, closes #37197Aaron Turon-13/+9
2017-03-17Stabilize ptr_eq feature, closes #36497Aaron Turon-5/+1
2017-03-13Remove function invokation parens from documentation links.Corey Farwell-2/+2
This was never established as a convention we should follow in the 'More API Documentation Conventions' RFC: https://github.com/rust-lang/rfcs/blob/master/text/1574-more-api-documentation-conventions.md
2017-02-20Revert "Fix up links"Steve Klabnik-1/+1
This reverts commit 7f1d1c6d9a7be5e427bace30e740b16b25f25c92. 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!
2017-02-13Fix up linksSteve Klabnik-1/+1
mdbook and rustdoc generate links differently, so we need to change all these links.
2017-01-31In std:rc, clarify the lack of mutability inside an RcFederico Mena Quintero-3/+6
Also, point to the example in Cell's docs for how to do it.
2016-12-28Replace uses of `#[unsafe_destructor_blind_to_params]` with `#[may_dangle]`Andrew Paseltiner-2/+1
CC #34761
2016-12-16Address falloutAaron Turon-31/+2
2016-12-15Stabilize:Aaron Turon-8/+5
- `std::rc::Rc::{strong_count, weak_count}` - `std::sync::Arc::{strong_count, weak_count}` Deprecate: - `std::rc::Rc::{would_unwrap, is_unique}`
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