process trait/impl items directly from the visitor callback
The current setup processes impl/trait items while visiting
the impl/trait. This means we basically have this setup:
<Lots> -> TypeckItemBody(Impl) -> Tables(ImplItem{0,1,2,3})
But this was largely an artifact of the older code. By moving the
processing of items into method dedicated for their use, we produce this
setup:
<Little> -> TypeckItemBody(ImplItem0) -> Tables(ImplItem0)
...
<Little> -> TypeckItemBody(ImplItem3) -> Tables(ImplItem3)
r? @michaelwoerister
Also, we might consider removing the `TypeckItemBody` node altogether and just using `Tables` as the task. `Tables` is its primary output, I imagine? That would reduce size of dep-graph somewhat.
cc @eddyb -- perhaps this pattern applies elsewhere?
This commit applies the stabilization/deprecations of the 1.16.0 release, as
tracked by the rust-lang/rust issue tracker and the final-comment-period tag.
The following APIs were stabilized:
* `VecDeque::truncate`
* `VecDeque::resize`
* `String::insert_str`
* `Duration::checked_{add,sub,div,mul}`
* `str::replacen`
* `SocketAddr::is_ipv{4,6}`
* `IpAddr::is_ipv{4,6}`
* `str::repeat`
* `Vec::dedup_by`
* `Vec::dedup_by_key`
* `Result::unwrap_or_default`
* `<*const T>::wrapping_offset`
* `<*mut T>::wrapping_offset`
* `CommandExt::creation_flags` (on Windows)
* `File::set_permissions`
* `String::split_off`
The following APIs were deprecated
* `EnumSet` - replaced with other ecosystem abstractions, long since unstable
Closes#27788Closes#35553Closes#35774Closes#36436Closes#36949Closes#37079Closes#37087Closes#37516Closes#37827Closes#37916Closes#37966Closes#38080
Partially implement RFC 1647 (`Self` in impl headers)
The name resolution part is easy, but the typeck part contains an unexpected problem.
It turns out that `Self` type *depends* on bounds and `where` clauses, so we need to convert them first to determine what the `Self` type is! If bounds/`where` clauses can refer to `Self` then we have a cyclic dependency.
This is required to support impls like this:
```
// Found in libcollections
impl<I: IntoIterator> SpecExtend<I> for LinkedList<I::Item> { .... }
^^^^^ associated type `Item` is found using information from bounds
```
I'm not yet sure how to resolve this issue.
One possible solution (that feels hacky) is to make two passes over generics - first collect predicates ignoring everything involving `Self`, then determine `Self`, then collect predicates again without ignoring anything. (Some kind of lazy on-demand checking or something looks like a proper solution.)
This patch in its current state doesn't solve the problem with `Self` in bounds, so the only observable things it does is improving error messages and supporting `impl Trait<Self> for Type {}`.
There's also a question about feature gating. It's non-trivial to *detect* "newly resolved" `Self`s to feature gate them, but it's simple to *enable* the new resolution behavior when the feature gate is already specified. Alternatively this can be considered a bug fix and merged without a feature gate.
cc https://github.com/rust-lang/rust/issues/38864
r? @nikomatsakis
cc @eddyb
Whitespace ignoring diff https://github.com/rust-lang/rust/pull/38920/files?w=1
The current setup processes impl/trait items while visiting
the impl/trait. This means we basically have this setup:
<Lots> -> TypeckItemBody(Impl) -> Tables(ImplItem{0,1,2,3})
But this was largely an artifact of the older code. By moving the
processing of items into method dedicated for their use, we produce this
setup:
<Little> -> TypeckItemBody(ImplItem0) -> Tables(ImplItem0)
...
<Little> -> TypeckItemBody(ImplItem3) -> Tables(ImplItem3)
Add std::process::Command::envs()
`Command::envs()` adds a vector of key-value pairs to the child
process environment all at once. Suggested in #38526.
This is not fully baked and frankly I'm not sure it even _works_, but I need some help finishing it up, and this is the simplest way to show you what I've got. The problems I know exist and don't know how to solve, from most to least important, are:
* [ ] I don't know if the type signature of the new function is correct.
* [x] The new test might not be getting run. I didn't see it go by in the output of `x.py test src/libstd --stage 1`.
* [x] The tidy check says ``process.rs:402: different `since` than before`` which I don't know what it means.
r? @brson
Previously we only uploaded tarballs, but this modifies Travis/AppVeyor to
upload everything. We shouldn't have anything else in there to worry about and
otherwise we need to be sure to pick up pkg/msi/exe installers.
This commit adds a new tool, `build-manifest`, which is used to generate a
distribution manifest of all produced artifacts. This tool is intended to
replace the `build-rust-manifest.py` script that's currently located on the
buildmaster. The intention is that we'll have a builder which periodically:
* Downloads all artifacts for a commit
* Runs `./x.py dist hash-and-sign`. This will generate `sha256` and `asc` files
as well as TOML manifests.
* Upload all generated hashes and manifests to the directory the artifacts came
from.
* Upload *all* artifacts (tarballs and hashes and manifests) to an archived
location.
* If necessary, upload all artifacts to the main location.
This script is intended to just be the second step here where orchestrating
uploads and such will all happen externally from the build system itself.
Update Fuchsia support for std::process.
- Adds support for try_wait.
- Miscellaneous updates to keep up with Magenta changes.
I'll begin `sys/fuchsia` soon, just been bogged down with my actual job lately (I'm not on the Fuchsia team).
exclusive range patterns
adds `..` patterns to the language under a feature gate (`exclusive_range_pattern`).
This allows turning
``` rust
match i {
0...9 => {},
10...19 => {},
20...29 => {},
_ => {}
}
```
into
``` rust
match i {
0..10 => {},
10..20 => {},
20..30 => {},
_ => {}
}
```
rustbuild: Start building --enable-extended
This commit adds a new flag to the configure script,
`--enable-extended`, which is intended for specifying a desire to
compile the full suite of Rust tools such as Cargo, the RLS, etc. This
is also an indication that the build system should create combined
installers such as the pkg/exe/msi artifacts.
Currently the `--enable-extended` flag just indicates that combined
installers should be built, and Cargo is itself not compiled just yet
but rather only downloaded from its location. The intention here is to
quickly get to feature parity with the current release process and then
we can start improving it afterwards.
All new files in this PR inside `src/etc/installer` are copied from the
rust-packaging repository.
cc #38531
This commit adds a new flag to the configure script,
`--enable-extended`, which is intended for specifying a desire to
compile the full suite of Rust tools such as Cargo, the RLS, etc. This
is also an indication that the build system should create combined
installers such as the pkg/exe/msi artifacts.
Currently the `--enable-extended` flag just indicates that combined
installers should be built, and Cargo is itself not compiled just yet
but rather only downloaded from its location. The intention here is to
quickly get to feature parity with the current release process and then
we can start improving it afterwards.
All new files in this PR inside `src/etc/installer` are copied from the
rust-packaging repository.
This is done by adding a function that can return a filename
to pass to backtrace_create_state. The filename is obtained in
a safe way by first getting the filename, locking the file so it can't
be moved, and then getting the filename again and making sure it's the same.
See: https://github.com/rust-lang/rust/pull/37359#issuecomment-260123399
Issue: #33985
Fix multiple labels when some don't have message
The diagnostic emitter now accounts for labels with no text message, presenting the underline on its own, without drawing the line for the non existing message below it. Go from
```
error: foo
--> test.rs:3:6
|
3 | a { b { c } d }
| ----^^^^^^^----
| | |
| | `b` is a good letter
|
```
to
```
error: foo
--> test.rs:3:6
|
3 | a { b { c } d }
| ----^^^^^^^----
| |
| `b` is a good letter
```
from
```
error: foo
--> test.rs:3:6
|
3 | a { b { c } d }
| ^^^^-------^^^^
| | |
| |
| `a` is a good letter
```
to
```
error: foo
--> test.rs:3:6
|
3 | a { b { c } d }
| ^^^^-------^^^^ `a` is a good letter
```
and from
```
error: foo
--> test.rs:3:6
|
3 | a { b { c } d }
| ^^^^-------^^^^
| | |
| |
|
```
to
```
error: foo
--> test.rs:3:6
|
3 | a { b { c } d }
| ^^^^-------^^^^
```
r? @nikomatsakis
cc @jonathandturner, @GuillaumeGomez, @nrc
