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Author SHA1 Message Date
Eugene R Gonzalez
7f95bb0dbd Fixed E0529's label and unit test 2016-09-01 22:35:25 -04:00
bors
8aeb15acc7 Auto merge of #35894 - jseyfried:new_import_semantics, r=nrc 
Implement RFC 1560 behind `#![feature(item_like_imports)]`

This implements https://github.com/rust-lang/rfcs/pull/1560 (cc #35120) behind the `item_like_imports` feature gate.

The [RFC text](https://github.com/rust-lang/rfcs/blob/master/text/1560-name-resolution.md#changes-to-name-resolution-rules) describes the changes to name resolution enabled by `#![feature(item_like_imports)` in detail. To summarize,
 - Items and named imports shadow glob imports.
 - Multiple globs can import the same name if the name is unused or the imports are shadowed.
 - Multiple globs can import the same name if the imports are of the same item (following re-exports).
  - The visibility of such a name is the maximum visibility of the imports.
  - Equivalently, adding a glob import will never reduce the visibility of a name, nor will removing one increase it.
 - Non-prelude private imports can be used wherever we currently allow private items to be used.
  - Prelude-imported names are unaffected, i.e. they continue to be usable only in lexical scopes.
 - Globs import all visible names, not just public names.
  - Equivalently, glob importing from an ancestor module imports all of the ancestor's names, and glob importing from other modules is unchanged.

r? @nrc
 2016-09-01 19:03:27 -07:00
Jeffrey Seyfried
90ce504c1c Address comments. 2016-09-02 00:35:16 +00:00
Alex Crichton
96283fc083 test: Add a min-llvm-version directive 
We've got tests which require a particular version of LLVM to run as they're
testing bug fixes. Our build system, however, supports multiple LLVM versions,
so we can't run these tests on all LLVM versions.

This adds a new `min-llvm-version` directive for tests so they can opt out of
being run on older versions of LLVM. This then namely applies that logic to the
`issue-36023.rs` test case and...

Closes #36138
 2016-09-01 16:14:17 -07:00
Eugene R Gonzalez
7cd4e7ff0b Fixed E0528 label and unit test 2016-09-01 19:08:07 -04:00
Jeffrey Seyfried
4f5616e3c4 Avoid cascading name resolution errors caused by an ambiguous module. 2016-09-01 22:30:29 +00:00
Jeffrey Seyfried
32a0cfeb48 Avoid reporting multiple ambiguity errors for a single use of a name. 2016-09-01 22:30:28 +00:00
Jeffrey Seyfried
681a14f29b item_like_imports: Allow unused ambiguous glob imports. 2016-09-01 22:30:27 +00:00
Jeffrey Seyfried
f582fa327e item_like_imports: Allow multiple glob imports of the same item. 2016-09-01 22:30:26 +00:00
Jeffrey Seyfried
245a0c5530 item_like_imports: Make all visible items glob importable. 2016-09-01 22:30:26 +00:00
Jeffrey Seyfried
097b6d62fc item_like_imports: Allow glob imports with a given visibility 
to reexport some (but not all) names with less visibility.
 2016-09-01 22:30:25 +00:00
Jeffrey Seyfried
c56a5afd4d item_like_imports: Allow single imports with a given visibility 
to reexport some (but not all) namespaces with less visibility.
 2016-09-01 22:30:24 +00:00
Jeffrey Seyfried
aad1f3cbf3 item_like_imports: Allow glob imports to be shadowed by items and single imports. 2016-09-01 22:30:24 +00:00
Jeffrey Seyfried
efc0bea687 item_like_imports: Treat private imports like private items. 2016-09-01 22:30:21 +00:00
Jeffrey Seyfried
5ba22c0ed6 Add item_like_imports feature. 2016-09-01 22:29:50 +00:00
Jeffrey Seyfried
513e955a18 Add field dummy_binding to Resolver. 2016-09-01 22:29:30 +00:00
Jeffrey Seyfried
95528d1a98 Refactor away resolver.current_vis and add module.normal_ancestor_id. 2016-09-01 22:29:29 +00:00
Jeffrey Seyfried
1e4c8173e1 Improve diagnostics and remove dead code. 2016-09-01 22:29:28 +00:00
Jeffrey Seyfried
87ae68c1d6 Refactor binding.def() to return a Def instead of an Option<Def>. 2016-09-01 22:29:27 +00:00
Jeffrey Seyfried
691d10c3c9 Rename new_binding -> binding. 2016-09-01 22:29:27 +00:00
Jeffrey Seyfried
5dc1196191 Refactor away binding.is_pseudo_public(). 2016-09-01 22:29:26 +00:00
Jeffrey Seyfried
48a435a90f Fix test compile-fail/task-rng-isnt-sendable.rs. 2016-09-01 22:29:25 +00:00
bors
497d67d708 Auto merge of #35761 - nikomatsakis:faster-trans-fulfill-obligation, r=eddyb 
Cache projections in trans

This introduces a cache for the results of projection and normalization in trans. This is in addition to the existing cache that is per-inference-context. Trans is an easy place to put the cache because we are guaranteed not to have type parameters and also we don't expect any failures or inference variables, so there is no need to cache or follow-up on obligations that come along with.  (As evidenced by the fact that this particular code would panic if any error occurred.)

That said, I am not sure this is 100% the best place for it; I sort of wanted a cache like we have in the fulfillment context for global names; but that cache only triggers when all subsequent obligations are satisfied, and since projections don't have an entry in the obligation jungle there is no easy place to put it. I considered caching both the result and obligations globally, but haven't really tried implementing it. It might be a good next step.

Regardless, this cache seems to have no real effect on bootstrap time (maybe a slight improvement), but on [the futures.rs test case I was looking at](https://github.com/rust-lang-nursery/rustc-benchmarks/pull/6), it improves performance quite a bit:

| phase | before | after |
| ----- | ------ | ----- |
| collection | 0.79s | 0.46s |
| translation | 6.8s | 3.2s |
| total | 11.92s | 7.15s |

r? @arielb1
 2016-09-01 15:25:58 -07:00
c4rlo
66ae481055 README.md: fix a "\" in table heading to be "/" 2016-09-01 22:42:51 +01:00
bors
933f471710 Auto merge of #34494 - CensoredUsername:allow_sysV64_abi, r=nagisa 
Allow specification of the system V AMD64 ABI constraint.

This can be specified using `extern "sysV64" fn` on all platforms.

This ABI is used as the C ABI on unix platforms, but can only be specified there using extern "C". It was impossible to specify on other platforms. Meanwhile the win64 ABI, which was the extern "C" ABI on the windows platform could be specified on other platforms using extern "win64".

This pull request adds the the "sysV64" ABI constraint which exposes this calling convention on platforms where it is not the C ABI.
 2016-09-01 11:56:51 -07:00
Michael Woerister
7310a8ffea ICH: Adapt to changes in the MetaItem AST representation. 2016-09-01 14:39:31 -04:00
Florian Gilcher
0f8eb81011 Document try!'s error conversion behaviour 2016-09-01 19:16:19 +02:00
Michael Woerister
8cbd6fe331 ICH: Share codemap cache between subsequent runs of the ICH visitor. 2016-09-01 09:43:44 -04:00
Michael Woerister
2faca22bd3 ICH: Fix codemap lookup caching. 2016-09-01 09:43:44 -04:00
Michael Woerister
a142d2ff02 ICH: Fix bug in hash_discriminant() and visit_vis(). 2016-09-01 09:43:44 -04:00
Michael Woerister
0310e3444b ICH: Take CaptureClause of closure expressions into account. 2016-09-01 09:43:44 -04:00
Michael Woerister
500ab357c2 ICH: Cleanup some comments. 2016-09-01 09:43:44 -04:00
Michael Woerister
6785256557 ICH: Don't hash span expansion kind twice. 2016-09-01 09:43:44 -04:00
Michael Woerister
5dd36bd486 Rename CacheCodemapView to CachingCodemapView. 2016-09-01 09:43:44 -04:00
Michael Woerister
1cfd7c3654 incr.comp.: Ignore doc-comments when computing the ICH. 2016-09-01 09:43:44 -04:00
Michael Woerister
8b67ad69a7 incr.comp. Add tests for stable span hashing. 2016-09-01 09:43:44 -04:00
Michael Woerister
e355ec1c6a incr.comp.: Add stable hashing of HIR spans to ICH. 2016-09-01 09:43:44 -04:00
Michael Woerister
8e4f4810dc Fill some holes in SVH/ICH computation, making it more strict. 2016-09-01 09:43:44 -04:00
Michael Woerister
dd65cb223a Add some infrastructure for timing things where time_passes can't be used. 2016-09-01 09:43:18 -04:00
Mohit Agarwal
7d5fa9edc9
configure: check if any of the arguments contain --help 
Currently it checks only the first argument.

Fixes #31216
 2016-09-01 18:49:35 +05:30
bors
147371f58f Auto merge of #34982 - arielb1:bad-tuples-and-objects, r=nikomatsakis 
Turn the RFC1592 warnings into hard errors

The warnings have already reached stable, and I want to improve the trait error reporting code.

Turning warnings into errors, this is obviously a [breaking-change].

r? @nikomatsakis

cc @rust-lang/compiler
 2016-09-01 06:05:04 -07:00
Ariel Ben-Yehuda
7b92d05804 turn the RFC1592 warnings into hard errors 
The warnings have already reached stable

The test rfc1592_deprecated is covered by `bad_sized` and
`unsized6`.

Fixes #33242
Fixes #33243
 2016-09-01 13:34:56 +03:00
bors
b2799a56a1 Auto merge of #35755 - SimonSapin:char_convert, r=alexcrichton 
Implement std::convert traits for char

This is motivated by avoiding the `as` operator, which sometimes silently truncates, and instead use conversions that are explicitly lossless and infallible.

I’m less certain that `From<u8> for char` should be implemented: while it matches an existing behavior of `as`, it’s not necessarily the right thing to use for non-ASCII bytes. It effectively decodes bytes as ISO/IEC 8859-1 (since Unicode designed its first 256 code points to be compatible with that encoding), but that is not apparent in the API name.
 2016-09-01 02:53:28 -07:00
CensoredUsername
3d766a0779 the win64 calling convention is also used on x86_64-pc-windows-gnu, so ignore windows entirely instead of just msvc 2016-09-01 10:35:37 +02:00
Nick Cameron
377be7a501 review comments 2016-09-01 14:55:28 +12:00
Nick Cameron
4dc7b585a2 save-analysis: add parent info to api dumps 
The parent id is used for constructing rustdoc URLs by clients
 2016-09-01 14:55:27 +12:00
Nick Cameron
4e4306c6df Thread visibility info through save-analysis and filter save-analysis-api on it. 2016-09-01 14:55:27 +12:00
Nick Cameron
c7dfc89f85 JsonApiDumper 2016-09-01 14:55:27 +12:00
Nick Cameron
cbafc5758b save-analsysis: add save-analysis-api CLI flag 2016-09-01 14:55:27 +12:00
Niko Matsakis
00d208eea8 remove normalize_infer_ctxt constructor 2016-08-31 22:06:01 -04:00