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- `ParamEnv::empty()` -- does not reveal all, good for typeck
- `ParamEnv::reveal_all()` -- does, good for trans
- `param_env.with_reveal_all()` -- converts an existing parameter environment
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Improvements:
- Use Clone not Copy for the "simple cases"
- Separate TypeFoldable and Lift for the "simple cases"
- Support generics type parameters
- Support named fields in enum variants
- etc
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Update the rls-rustc package
Should hopefully fix compiling the rls!
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Add missing links
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Remove auto trait implementation section when empty
Fixes #48882.
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Remember state of top-level collapse toggle widget
This change allows the big top-right expand/collapse toggle to remember its setting across navigation or page reloads. Prior to this change, there was this annoyance:
- browse to some docs
- Click the minus button to collapse them
- browse to other docs (or reload the page)
- Everything is expanded again
The solution is based on storing a simple boolean flag in localStorage. I think it's a good improvement, but it does introduce the following potentially surprising behavior:
- browse to some docs
- click the minus button to collapse them
- click to expand a particular item (not the main top-right big one)
- reload the page, everything is collapsed
Paired with @debugsteven on this.
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Clarify interfaction between File::set_len and file cursor
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Should hopefully fix compiling the rls!
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Fix hygene issue when deriving Debug
The code for several of the core traits doesn't use hygenic macros.
This isn't a problem, except for the Debug trait, which is the only
one that uses a variable, named "builder".
Variables can't share names with unit structs, so attempting to
[derive(Debug)] on any type while a unit struct with the name
"builder" was in scope would result in an error.
This commit just changes the name of the variable to
"__debug_trait_builder", because I couldn't figure out how to get a
list of all unit structs in-scope from within the derive expansion
function. If someone wants to have a unit struct with
the exact name "__debug_trait_builder", they'll just have to do it
without a [derive(Debug)].
I also checked the implementations of the other built-in derives to
ensure they didn't declare any variables.
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in which some labels and notes are upgraded to structured suggestions
(Meanwhile, a couple of parse-fail tests are moved to UI tests so that
the reader can see the new output, and an existing UI test is given a
more evocative name.)
r? @estebank
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Update stdsimd module
Pulls in a redesigned `std::simd` module as well as a replacement for the
`is_target_feature_detected!` macro
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tidy: Add a check for stray `.stderr` and `.stdout` files in UI test directories
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Add missing urls
r? @QuietMisdreavus
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Update L4Re target specification
Due to the dynamically generated linker arguments of the L4Re build system, it is not a good idea to hard-code them in Rust. This PR undoes this step. It also adds an empty implementation to retrieve the number of CPUs.
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rephrase UnsafeCell doc
As shown by discussions on users.rust-lang.org [[1]], [[2]], UnsafeCell doc is not totally clear. I tried to made the doc univocal regarding what is allowed and what is not. The edits are based on my understanding following [[1]].
[1]: https://users.rust-lang.org/t/unsafecell-behavior-details/1560
[2]: https://users.rust-lang.org/t/is-there-a-better-way-to-overload-index-indexmut-for-a-rc-refcell/15591/12
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Two phase borrows rewrite
This definitely needs a careful review. Both @pnkfelix and @nikomatsakis were involved with the design of this so they're natural choices here. I'm r?'ing @pnkfelix since they wrote the original two-phase borrow implementation. Also ping @KiChjang who expressed interest in working on this. I'm going to leave a few comments below pointing out some of the more dangerous changes I made (i.e. what I would like reviewers to pay special attention too.)
r? @pnkfelix
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rustbuild: pass datadir to rust-installer
This fixes zsh completion install when $datadir != $prefix/share
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test: Forcibly remove MAKEFLAGS in compiletest
When executing run-make tests we run a risk of leaking the `MAKEFLAGS`
environment variable if `./x.py` itself was called from `make` (aka `make check
-j3` as the OSX bots do). We may then leak accidentally fds into the child
process and trick it into thinking it's got a jobserver!
Hopefully addresses [this] spurious failure
[this]: https://github.com/rust-lang/rust/pull/48295#issuecomment-372134717
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Update Cargo submodule
Hopefully a routine update...
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When executing run-make tests we run a risk of leaking the `MAKEFLAGS`
environment variable if `./x.py` itself was called from `make` (aka `make check
-j3` as the OSX bots do). We may then leak accidentally fds into the child
process and trick it into thinking it's got a jobserver!
Hopefully addresses [this] spurious failure
[this]: https://github.com/rust-lang/rust/pull/48295#issuecomment-372134717
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Required moving all fulldeps tests depending on `rand` to different locations as
now there's multiple `rand` crates that can't be implicitly linked against.
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Pulls in a redesigned `std::simd` module as well as a replacement for the
`is_target_feature_detected!` macro
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Remove ONLY_BUILD and ONLY_BUILD_TARGETS
Primarily removes `ONLY_BUILD` and `ONLY_BUILD_TARGETS`. These aren't actually needed in the new system since we can simply not take the relevant `host` and `target` fields if we don't want to run with them in `Step::make_run`.
This PR also includes a few other commits which generally clean up the state of rustbuild, but are not related to the `Step` changes.
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The code for several of the core traits doesn't use hygenic macros.
This isn't a problem, except for the Debug trait, which is the only
one that uses a variable, named "builder".
Variables can't share names with unit structs, so attempting to
[derive(Debug)] on any type while a unit struct with the name
"builder" was in scope would result in an error.
This commit just changes the name of the variable to
"__debug_trait_builder", because I couldn't figure out how to get a
list of all unit structs in-scope from within the derive expansion
function. If someone wants to have a unit struct with
the exact name "__debug_trait_builder", they'll just have to do it
without a [derive(Debug)].
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Some minor CI changes
1. On macOS, ensure crash log printing won't error, and only real crash logs are printed. This may avoid the `find` process exiting abnormally and truncated the Travis log (I guess).
2. Print `/proc/cpuinfo` and `/proc/meminfo`. To determine if there's any variation in the reported clock rate between jobs.
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travis: Upgrade OSX builders
This upgrades the OSX builders to the `xcode9.3-moar` image which has 3 cores as
opposed to the 2 that our builders currently have. Should help make those OSX
builds a bit speedier!
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(Meanwhile, a couple of parse-fail tests are moved to UI tests so that
the reader can see the new output, and an existing UI test is given a
more evocative name.)
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Merge LLVM fix for undefined bss globals
This fixes #41315.
r? @japaric
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Move PROFQ_CHAN to a Session field
r? @michaelwoerister
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Use free regions when determining self type in `compare_impl_method`
The ExplicitSelf::determine function expects to be able to compare regions. However, when the compare_self_type error reporting code runs we haven't resolved bound regions yet. Thus we replace them with free regions first. Fixes #48276
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These change from release to release and are impossible to get right,
since they are generated by Make magic.
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Add relro-level tests
The `relro-level` debugging flag was added in #43170 which was merged in July 2017. This PR moves this flag to be a proper codegen flag.
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This fixes #41315.
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Show the used type variable when issuing a "can't use type parameters from outer function" error message
Fix #14844
r? @estebank
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Multiple rustdoc fixes
Fixes #48733.
r? @QuietMisdreavus
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We explicitly do this when compiling OpenSSL itself due to weird racy issues in
its build system, and now we've started seeing issues in the `make install` step
so let's try and see what ratcheting down the parallelism does here...
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Left over from prior experimentation, no longer required.
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It seems whatever was causing problems has been fixed.
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travis: Upgrade dist builders for OSX
This commit upgrades the dist builders for OSX to Travis's new `xcode9.3-moar`
image which has 3 cores available to it instead of 2. This should help us
provide speedier builds on OSX and hit timeouts less in theory!
Note that historically the dist builders for OSX have been a different version
than the ones that are running tests. I had forgotten why this was the case and
digging around brought up 307615567 where apparently Xcode 8 wasn't able to
compile LLVM with `MACOSX_DEPLOYMENT_TARGET=10.7` which we desired. On a whim I
gave this PR a spin and it [looks like][green] this has since been fixed (maybe
in LLVM?). In any case those green builds should hopefully mean that we can
safely upgrade and get faster infrastructure to boot.
This commit also includes an upgrade of OpenSSL. This is not done for security
reasons but rather build system reasons. Originally builds with the new image
[did not succeed][red] due to weird build failures in OpenSSL, but upgrading
seems to have made the spurious errors go away to here's to also hoping that's
fixed!
[green]: https://travis-ci.org/rust-lang/rust/builds/351353412
[red]: https://travis-ci.org/rust-lang/rust/builds/350969248
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