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bors
f9f9050f50 Auto merge of #49389 - fanzier:euclidean-division, r=KodrAus 
Implement RFC #2169 (Euclidean modulo).

Tracking issue: #49048
 2018-04-13 07:34:37 +00:00
bors
eec3208c4c Auto merge of #49360 - topecongiro:run-rustfmt/build_helper, r=nrc 
Run rustfmt on build_helper

Using rustfmt 0.4.1-nightly (e784712f 2018-04-09).
 2018-04-13 04:42:10 +00:00
bors
defcfe7142 Auto merge of #49718 - petrochenkov:fieldcmp, r=eddyb 
Hygiene 2.0: Avoid comparing fields by name

There are two separate commits here (not counting tests):
- The first one unifies named (`obj.name`) and numeric (`obj.0`) field access expressions in AST and HIR. Before field references in these expressions are resolved it doesn't matter whether the field is named or numeric (it's just a symbol) and 99% of code is common. After field references are resolved we work with
them by index for all fields (see the second commit), so it's again not important whether the field was named or numeric (this includes MIR where all fields were already by index).
(This refactoring actually fixed some bugs in HIR-based borrow checker where borrows through names (`S {
0: ref x }`) and indices (`&s.0`) weren't considered overlapping.)
- The second commit removes all by-name field comparison and instead resolves field references to their indices  once, and then uses those resolutions. (There are still a few name comparisons in save-analysis, because save-analysis is weird, but they are made correctly hygienic).
Thus we are fixing a bunch of "secondary" field hygiene bugs (in borrow checker, lints).

Fixes https://github.com/rust-lang/rust/issues/46314
 2018-04-13 01:43:09 +00:00
Shotaro Yamada
2c7e83f746 Move path_len to ExternCrate 2018-04-13 09:31:43 +09:00
bors
c4a03283cd Auto merge of #45298 - toidiu:ak-44493-infer-predicate, r=nikomatsakis 
Ak 44493 infer predicate

 **WIP**  Implements #44493

Things to do:

- [x] add feature gate and appropriate tests (see [forge](https://forge.rust-lang.org/feature-guide.html) for some details)
- [x] add a unit testing system similar to `#[rustc_variance]`
  - [x] to see how, maybe `rg rustc_variance` and take some notes
- [ ] add more tests:
- [x] we need to decide how to handle `struct Foo<'a, T> { x: &'a T::Item }`
- [x] handle explicit predicates on types
- [ ] handle explicit predicates on `dyn Trait` (this could be put off to a follow-up PR)
- [ ] handle explicit predicates on projections (this could be put off to a follow-up PR)
 2018-04-12 23:07:07 +00:00
Fabian Zaiser
ca4e458089 Address more nits. 2018-04-12 23:12:11 +02:00
Simon Sapin
c5ffdd787d Initial docs for the GlobalAlloc trait 2018-04-12 22:53:22 +02:00
Simon Sapin
f607a3872a Rename alloc::Void to alloc::Opaque 2018-04-12 22:53:22 +02:00
Simon Sapin
ed29777759 Remove conversions for allocated pointers 
One was now unused, and `NonNull::new(…).ok_or(AllocErr)` feels short enough
for the few cases that need the other conversion.
 2018-04-12 22:53:22 +02:00
Mike Hommey
fddf51ee0b Use NonNull<Void> instead of *mut u8 in the Alloc trait 
Fixes #49608
 2018-04-12 22:53:22 +02:00
Simon Sapin
fd242ee64c impl GlobalAlloc for Global 2018-04-12 22:53:22 +02:00
Simon Sapin
eae0d46893 Restore Global.oom() functionality 
… now that #[global_allocator] does not define a symbol for it
 2018-04-12 22:53:21 +02:00
Simon Sapin
96c9d225a9 Remove impl Alloc for &'a System 
This was relevant to `#[global_allocator]`,
which is now based on `GlobalAlloc` trait instead.
 2018-04-12 22:53:14 +02:00
Simon Sapin
c033f1ff5f Move platform-specific OOM handling to functions 2018-04-12 22:53:14 +02:00
Simon Sapin
747cc74943 Conversions between Result<*mut u8, AllocErr>> and *mut Void 2018-04-12 22:53:14 +02:00
Simon Sapin
c957e99b30 realloc with a new size only, not a full new layout. 
Changing the alignment with realloc is not supported.
 2018-04-12 22:53:13 +02:00
Simon Sapin
b017742136 Return Result instead of Option in alloc::Layout constructors 2018-04-12 22:53:13 +02:00
Simon Sapin
f9c96d70bd Add FIXME comments for Void::null_mut usage 2018-04-12 22:53:13 +02:00
Simon Sapin
93a9ad4897 Remove the now-unit-struct AllocErr field inside CollectionAllocErr 2018-04-12 22:53:13 +02:00
Simon Sapin
157ff8cd05 Remove the now-unit-struct AllocErr parameter of oom() 2018-04-12 22:53:13 +02:00
Simon Sapin
86753ce1cc Use the GlobalAlloc trait for #[global_allocator] 2018-04-12 22:53:12 +02:00
Simon Sapin
eb69593f73 Implement GlobalAlloc for System 2018-04-12 22:53:03 +02:00
Simon Sapin
ba7081a033 Make AllocErr a zero-size unit struct 2018-04-12 22:53:03 +02:00
Alex Crichton
a4caac5e93 Update to most recent version of dlmalloc 
Inline the definition of `GlobalAlloc` for `dlmalloc` on wasm and don't rely on
usage of unstable features in `dlmalloc` itself.
 2018-04-12 22:53:02 +02:00
Simon Sapin
5e5a0c21fc Separate alloc::heap::Alloc trait for stage0 #[global_allocator] 2018-04-12 22:52:54 +02:00
Simon Sapin
e521b8b472 Actually deprecate the Heap type 2018-04-12 22:52:47 +02:00
Simon Sapin
88ebd2d752 Rename the Heap type to Global 
… since it is the entry point for what’s registered with `#[global_allocator]`
 2018-04-12 22:52:47 +02:00
Simon Sapin
743c29bdc5 Actually deprecate heap modules. 2018-04-12 22:52:47 +02:00
Simon Sapin
09e8db1e4f Rename heap modules in the core, alloc, and std crates to alloc 2018-04-12 22:52:47 +02:00
Simon Sapin
1b895d8b88 Import the alloc crate as alloc_crate in std 
… to make the name `alloc` available.
 2018-04-12 22:52:47 +02:00
Simon Sapin
c660cedc02 Add a GlobalAlloc trait 2018-04-12 22:52:47 +02:00
Simon Sapin
9b068867f0 Add a core::heap::Void extern type. 2018-04-12 22:52:47 +02:00
Simon Sapin
1569f8f812 Inline docs for the heap module’s reexports 2018-04-12 22:52:47 +02:00
QuietMisdreavus
3366032ab7 add test for using target features in doctests 2018-04-12 15:51:11 -05:00
Andre Bogus
2f603413ab improve Atomic*::fetch_update docs 2018-04-12 22:48:48 +02:00
Vadim Petrochenkov
fcf48520a0 Add some new tests + Fix failing tests 2018-04-12 23:06:03 +03:00
Vadim Petrochenkov
d3f8b8be6f Move hygiene tests to UI 2018-04-12 23:06:03 +03:00
Vadim Petrochenkov
4f69b7fb85 Avoid comparing fields by name when possible 
Resolve them into field indices once and then use those resolutions

+ Fix rebase
 2018-04-12 23:06:03 +03:00
Vadim Petrochenkov
44acea4d88 AST/HIR: Merge field access expressions for named and numeric fields 2018-04-12 23:02:09 +03:00
John Kåre Alsaker
807c1a0935 Make OnDiskCache thread-safer 2018-04-12 21:53:56 +02:00
toidiu
6a229cbfac Implement inferring outlives requirements for references, structs, enum, union, and projection types. added a feature gate and tests for these scenarios. 2018-04-12 13:52:06 -04:00
Mark Simulacrum
de345332b5 Add check builder for Windows to Travis 2018-04-12 11:09:31 -06:00
bors
6c537493d0 Auto merge of #49558 - Zoxc:sync-misc, r=michaelwoerister 
Even more thread-safety changes

r? @michaelwoerister
 2018-04-12 16:22:36 +00:00
Chris Coulson
6f10146f9f Fix test failure in src/tools/rustdoc-themes when rust.rpath = false 2018-04-12 15:01:49 +01:00
Nicholas Nethercote
4d34bfd00a Change the hashcounts in raw Lit variants from usize to u16. 
This reduces the size of `Token` from 32 bytes to 24 bytes on 64-bit
platforms.
 2018-04-12 20:12:42 +10:00
bors
9afed64645 Auto merge of #49551 - scottmcm:deprecate-offset_to, r=KodrAus 
Deprecate offset_to; switch core&alloc to using offset_from instead

Bonus: might make code than uses `.len()` on slice iterators faster

cc https://github.com/rust-lang/rust/issues/41079
 2018-04-12 08:29:10 +00:00
Seiichi Uchida
23b880ade5 Run rustfmt on build_helper 2018-04-12 14:49:03 +09:00
bors
252a459d37 Auto merge of #49371 - scottmcm:catch-wrapping, r=nikomatsakis 
Add ok-wrapping to catch blocks, per RFC

Updates the `catch{}` lowering to wrap the result in `Try::from_ok`.

r? @nikomatsakis

Fixes #41414
Fixes #43818
 2018-04-12 05:38:49 +00:00
Tatsuyuki Ishi
b15df80345 traits: Implement interning for Goal and Clause 2018-04-12 13:43:10 +09:00
bors
47778811d9 Auto merge of #48528 - bitshifter:repr_packed, r=eddyb 
Implementation of `#[repr(packed(n))]` RFC 1399.

Tracking issue https://github.com/rust-lang/rust/issues/33158.
 2018-04-12 03:08:14 +00:00