Rollup merge of #33867 - oli-obk:rustdoc_variant_types, r=GuillaumeGomez
print enum variant fields in docs
Right now we are repeating enum variants at the top, because the fields aren't shown with the actual docs. It's very annoying to have to scroll up and down to have both docs and field info. For struct variants we already list the fields.
enum docs look like this after this PR:
There are degenerate cases for enum tuple variants with lots of fields:
I was thinking that we could move the docs below the variant (slightly indented) or list the variant fields vertically instead of horizontally
Rollup merge of #33893 - Ophirr33:docs_string_split_fix, r=GuillaumeGomez
Added examples/docs to split in str.rs
Added documentation clarifying the behavior of split when used with the empty string and contiguous separators. Addresses issue [33882](https://github.com/rust-lang/rust/issues/33882). This is my first time contributing to rust, so forgive me if I'm skipping any of the contribution steps.
Fixes #33882
bors [Mon, 30 May 2016 04:28:50 +0000 (21:28 -0700)]
Auto merge of #33929 - petrochenkov:pathir, r=eddyb
Separate bindings from other patterns in HIR
Now when name resolution is done on AST, we can avoid dumping everything that looks like an identifier into `PatKind::Ident` in HIR.
`hir::PatKind::Ident` is removed, fresh bindings are now called `hir::PatKind::Binding`, everything else goes to `hir::PatKind::Path`.
I intend to do something with `PatKind::Path`/`PatKind::QPath` as well using resolution results, but it requires some audit and maybe some deeper refactoring of relevant resolution/type checking code to do it properly.
I'm submitting this part of the patch earlier to notify interested parties that I'm working on this.
bors [Sun, 29 May 2016 10:02:46 +0000 (03:02 -0700)]
Auto merge of #33934 - Byron:libsyntex-ring-buffer-size, r=pnkfelix
Prevent overflows by increasing ring buffer size
Please note that this change is just done to prevent
issues as currently seen by syntex_syntax in future.
See https://github.com/serde-rs/syntex/pull/47 for details.
As shown in https://github.com/serde-rs/syntex/issues/33,
complex code can easily overflow the ring-buffer and
cause an assertion error.
bors [Sun, 29 May 2016 02:19:27 +0000 (19:19 -0700)]
Auto merge of #33848 - alexcrichton:android-gdb-sysroot, r=michaelwoerister
test: Use `set sysroot` for more NDK compatibility
Recent versions of the Android NDK no longer ship debuggers like
`arm-linux-androideabi-gdb`, but instead one prebuilt binary `gdb`. We can
symlink this into place at least to get our detection still working, but it now
needs to be told what the sysroot is so it can correctly do... something. Long
story short, tests didn't pass with this change and after this change they pass.
bors [Sat, 28 May 2016 23:21:53 +0000 (16:21 -0700)]
Auto merge of #33825 - alexcrichton:fix-beta, r=aturon
mk: Fix bootstrapping cross-hosts on beta
The beta builds are currently failing, unfortunately, due to what is presumably
some odd behavior with our makefiles. The wrong bootstrap key is being used to
generate the stage1 cross-compiled libraries, which fails the build.
Interestingly enough if the targets are directly specified as part of the build
then it works just fine! Just a bare `make` fails...
Instead of trying to understand what's happening in the makefiles instead just
tweak how we configure the bootstrap key in a way that's more likely to work.
Sebastian Thiel [Sat, 28 May 2016 15:29:59 +0000 (17:29 +0200)]
Prevent overflows by increasing ring buffer size
Please note that this change is just done to prevent
issues as currently seen by syntex_syntax in future.
See https://github.com/serde-rs/syntex/pull/47 for details.
As shown in https://github.com/serde-rs/syntex/issues/33,
complex code can easily overflow the ring-buffer and
cause an assertion error.
Rollup merge of #33854 - petrochenkov:prefvis, r=eddyb
Apply visit_path to import prefixes by default
Overriding `visit_path` is not enough to visit all paths, some import prefixes are not visited and `visit_path_list_item` need to be overridden as well. This PR removes this catch, it should be less error prone this way. Also, the prefix is visited once now, not repeatedly for each path list item.
Rollup merge of #33852 - arielb1:autoderef-iterator, r=eddyb
refactor autoderef to avoid prematurely registering obligations
Refactor `FnCtxt::autoderef` to use an external iterator and to not
register any obligation from the main autoderef loop, but rather to
register them after (and if) the loop successfully completes.
Rollup merge of #33849 - ranma42:escape-iters-count, r=alexcrichton
Implement `count` for `EscapeUnicode`
and cleanup the code for `count` for `EscapeDefault` (instead of repeating the `match` for `size_hint` and `count`).
This PR marks EscapeUnicode and EscapeDefault as ExactSizeIterator. The constraints for the trait implementations held even before this PR, but I am not sure if this is something we want to guarantee/expose (I would love feedback on this, especially on what would be the appropriate way to handle stabilisation, if needed).
Rollup merge of #33832 - alexcrichton:android-memalign, r=luqmana
std: Use memalign, not posix_memalign, on Android
We've gotten requests to move our Android support as far back as API level 9
where unfortunately the `posix_memalign` API wasn't implemented yet. Thankfully,
however, the `memalign` API was and it appears to be usable with `free` on the
Android platform (see comments included in commit).
This should help fix some of the last few test failures when compiling against
API level 9.
The current docs are a bit inconsistent. First, change all references of "recover" to "catch_unwind" because the function was renamed. Second, consistently use the term "unwind safe" instead of "panic safe", "exception safe" and "recover safe" (all these terms were used previously).
Rollup merge of #33820 - jonathandturner:format_readability_updates, r=nikomatsakis
Increase spacing in error format for readability.
Two small tweaks that seem to help readability quite a bit:
* Add spacing header<->snippet, but use the |> on the side for visual consistency
* Fix #33819
* Fix #33763
* Move format-sensitive test (issue-26480 in cfail) to ui test
bors [Sat, 28 May 2016 00:46:14 +0000 (17:46 -0700)]
Auto merge of #33706 - jseyfried:refactor_cfg, r=nrc
Perform `cfg` attribute processing during macro expansion and fix bugs
This PR refactors `cfg` attribute processing and fixes bugs. More specifically:
- It merges gated feature checking for stmt/expr attributes, `cfg_attr` processing, and `cfg` processing into a single fold.
- This allows feature gated `cfg` variables to be used in `cfg_attr` on unconfigured items. All other feature gated attributes can already be used on unconfigured items.
- It performs `cfg` attribute processing during macro expansion instead of after expansion so that macro-expanded items are configured the same as ordinary items. In particular, to match their non-expanded counterparts,
- macro-expanded unconfigured macro invocations are no longer expanded,
- macro-expanded unconfigured macro definitions are no longer usable, and
- feature gated `cfg` variables on macro-expanded macro definitions/invocations are now errors.
This is a [breaking-change]. For example, the following would break:
```rust
macro_rules! m {
() => {
#[cfg(attr)]
macro_rules! foo { () => {} }
foo!(); // This will be an error
macro_rules! bar { () => { fn f() {} } }
#[cfg(attr)] bar!(); // This will no longer be expanded ...
fn g() { f(); } // ... so that `f` will be unresolved.
#[cfg(target_thread_local)] // This will be a gated feature error
macro_rules! baz { () => {} }
}
}
bors [Fri, 27 May 2016 21:49:10 +0000 (14:49 -0700)]
Auto merge of #33798 - locallycompact:lc/misleading-intentation, r=alexcrichton
Fix misleading intentation errors on gcc 6.0
Currently building with latest gcc results in the following error:
compile: x86_64-unknown-linux-gnu/rt/miniz.o
/home/lc/rust/src/rt/miniz.c: In function ‘tinfl_decompress’:
/home/lc/rust/src/rt/miniz.c:578:9: error: this ‘for’ clause does not guard... [-Werror=misleading-indentation]
for ( i = 0; i <= 143; ++i) *p++ = 8; for ( ; i <= 255; ++i) *p++ = 9; for ( ; i <= 279; ++i) *p++ = 7; for ( ; i <= 287; ++i) *p++ = 8;
^~~
/home/lc/rust/src/rt/miniz.c:578:47: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’
for ( i = 0; i <= 143; ++i) *p++ = 8; for ( ; i <= 255; ++i) *p++ = 9; for ( ; i <= 279; ++i) *p++ = 7; for ( ; i <= 287; ++i) *p++ = 8;
^~~
/home/lc/rust/src/rt/miniz.c: In function ‘tdefl_find_match’:
/home/lc/rust/src/rt/miniz.c:1396:5: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation]
if (!dist) break; p = s; q = d->m_dict + probe_pos; for (probe_len = 0; probe_len < max_match_len; probe_len++) if (*p++ != *q++) break;
^~
/home/lc/rust/src/rt/miniz.c:1396:23: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’
if (!dist) break; p = s; q = d->m_dict + probe_pos; for (probe_len = 0; probe_len < max_match_len; probe_len++) if (*p++ != *q++) break;
^
Guillaume Gomez [Fri, 27 May 2016 08:50:03 +0000 (10:50 +0200)]
Rollup merge of #33815 - carols10cents:trait-documentation-clarifications, r=steveklabnik
Trait documentation clarifications
Hi! I've felt a bit of friction lately in figuring out how to write custom implementations of the `derive`able traits, so I decided to add to the docs :)
The docs for `Copy` are already excellent-- clear, useful sections that I only reordered a bit-- they're now:
* General explanation
* When can my type be `Copy`?
* When can my type _not_ be `Copy`?
* When should my type be `Copy`?
* Derivable
* How can I implement `Copy`?
I didn't add all these sections for all the traits, but I did make sure all the derivable traits had a consistent "Derivable" section that explained what the derived implementation does and a "How can I implement" section that has an example.
Please check me for correctness-- I tried to do research to make sure I was saying accurate things but I'm still learning! ❤️ I'd also love suggestions on information to add that is still missing-- I think these traits are important and deserve to have awesome docs!
Rollup merge of #33644 - petrochenkov:selfast, r=nrc
The AST part of https://github.com/rust-lang/rust/pull/33505.
https://github.com/rust-lang/rust/pull/33505 isn't landed yet, so this PR is based on top of it.
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