Update cargo
6 commits in 875e0123259b0b6299903fe4aea0a12ecde9324f..8777a6b1e8834899f51b7e09cc9b8d85b2417110
2020-09-08 20:17:21 +0000 to 2020-09-15 19:11:03 +0000
- updated yank error message (rust-lang/cargo#8697)
- Fix non-determinism with new feature resolver. (rust-lang/cargo#8701)
- Display formatted output for JSON diffing in tests. (rust-lang/cargo#8692)
- Add --name suggestion for cargo new (rust-lang/cargo#8675)
- Sweep unrelated message from unnecessary workspace infromation (rust-lang/cargo#8681)
- Docs: Make it more clear we have two types of workspaces (rust-lang/cargo#8666)
Note when a a move/borrow error is caused by a deref coercion
Fixes#73268
When a deref coercion occurs, we may end up with a move error if the
base value has been partially moved out of. However, we do not indicate
anywhere that a deref coercion is occuring, resulting in an error
message with a confusing span.
This PR adds an explicit note to move errors when a deref coercion is
involved. We mention the name of the type that the deref-coercion
resolved to, as well as the `Deref::Target` associated type being used.
improve diagnostics for lifetime after `&mut`
If, when parsing a borrow pointee type, we see a lifetime after `mut`, suggest placing the lifetime before `mut` and eat the lifetime to avoid a large number of unhelpful diagnostics.
There are some subtleties to avoid false positives in cases like `&mut 'a + Trait`, where `&mut ('a + Trait)` is a better suggestion.
fixes#73568
Always try to promote shared LLVM to the sysroot
Even when LLVM is not generally participating in a shared link with rustc, we
will likely still link to the shared dylib from rust-lld, so we still need to
promote it.
This reverts part of #76349; my expectation that the link-shared rule was sufficient was likely wrong.
Hopefully fixes#76698.
r? `@alexcrichton`
Windows doesn't quite support dynamic linking to LLVM yet, but on other
platforms we do. In #76708, it was discovered that we dynamically link to LLVM
from the LLVM tools (e.g., rust-lld), so we need the shared LLVM library to link
against. That means that if we do not have a shared link to LLVM, and want LLVM
tools to work, we'd be shipping two copies of LLVM on all of these platforms:
one in librustc_driver and one in libLLVM.
Also introduce an error into rustbuild if we do end up configured for shared
linking on Windows.
Split `core::slice` to smaller mods
Unfortunately the `#[lang = "slice"]` is too big (3003 lines), I cannot split it further.
Note for reviewer:
* I split to multiple commits for easier reviewing, but I could git squash them all to one if requested.
* Recommend pulling this change locally and using advanced git diff viewer or this command:
```
git show --reverse --color-moved=dimmed-zebra master..
```
---
I split core/slice/mod.rs to these modules:
* `ascii`: For operations on `[u8]`.
* `cmp`: For comparison operations on `[T]`, like PartialEq and SliceContains impl.
* `index`: For indexing operations like Index/IndexMut and SliceIndex.
* `iter`: For Iterator definitions and implementation on `[T]`.
- `macros`: For iterator! and forward_iterator! macros.
* `raw`: For free function to create `&[T]` or `&mut [T]` from pointer + length or a reference.
The heapsort wrapper in mod.rs is removed in favor of reexport from `sort::heapsort`.
Refactor intra doc link code
I got tired of `fold_item` being 500 lines long.
This is best reviewed one commit at a time with whitespace changes hidden.
There are no logic changes other than the last commit making a parameter checked by the caller instead of the callee.
r? `@Manishearth`
More structured suggestions for boxed trait objects instead of impl Trait on non-coerceable tail expressions
When encountering a `match` or `if` as a tail expression where the
different arms do not have the same type *and* the return type of that
`fn` is an `impl Trait`, check whether those arms can implement `Trait`
and if so, suggest using boxed trait objects.
Use structured suggestion for `impl T` to `Box<dyn T>`.
Fix https://github.com/rust-lang/rust/issues/69107
Stabilize doc_alias feature
Fixes#50146.
This PR intend to stabilize the `doc_alias` feature. The last remaining bits were missing checks on the attribute usage and on its arguments. Both have been added so I think we can now move to the next step.
r? `@ollie27`
cc `@rust-lang/rustdoc`
Ignore rustc_private items from std docs
By ignoring rustc_private items for non local impl block,
this may fix#74672 and fix#75588 .
This might suppress #76529 if it is simple enough for backport.
Auto-generate lint documentation.
This adds a tool which will generate the lint documentation in the rustc book automatically. This is motivated by keeping the documentation up-to-date, and consistently formatted. It also ensures the examples are correct and that they actually generate the expected lint. The lint groups table is also auto-generated. See https://github.com/rust-lang/compiler-team/issues/349 for the original proposal.
An outline of how this works:
- The `declare_lint!` macro now accepts a doc comment where the documentation is written. This is inspired by how clippy works.
- A new tool `src/tools/lint-docs` scrapes the documentation and adds it to the rustc book during the build.
- It runs each example and verifies its output and embeds the output in the book.
- It does a few formatting checks.
- It verifies that every lint is documented.
- Groups are collected from `rustc -W help`.
I updated the documentation for all the missing lints. I have also added an "Explanation" section to each lint providing a reason for the lint and suggestions on how to resolve it.
This can lead towards a future enhancement of possibly showing these docs via the `--explain` flag to make them easily accessible and discoverable.
allow concrete self types in consts
This is quite a bad hack to fix#75486. There might be a better way to check if the self type depends on generic parameters, but I wasn't able to come up with one.
r? `@varkor` cc `@petrochenkov`
inliner: Emit storage markers for introduced arg temporaries
When introducing argument temporaries during inlining, emit storage
marker statements just before the assignment and in the beginning of
the return block.
This ensures that such temporaries will not be considered live across
yield points after inlining inside a generator.
Fixes#71793.
Thanks to marcusklaas' hard work in https://github.com/raphlinus/pulldown-cmark/pull/469, this fixes a lot of rustdoc bugs!
- Get rid of unnecessary `RefCell`
- Fix duplicate warnings for broken implicit reference link
- Remove unnecessary copy of links
Previously, `resolve` would immediately check that `module_id` was
non-empty and give an error if not. This had two downsides:
- It introduced `Option`s everywhere, even if the calling function knew
it had a valid module, and
- It checked the module on each namespace, which is unnecessary: it only
needed to be checked once.
This makes the caller responsible for checking the module exists, making
the code a lot simpler.
Use `is_unstable_const_fn` instead of `is_min_const_fn` in rustdoc where appropriate
This closes#76501. Specifically, it allows for nightly users with the `#![feature(const_fn)]` flag enabled to still have their `const fn` declarations documented as such, while retaining the desired behavior that rustdoc *not* document functions that have the `rustc_const_unstable` attribute as `const`.
Fixing memory exhaustion when formatting short code suggestion
Details can be found in issue #76597. This PR replaces substractions with `saturating_sub`'s to avoid usize wrapping leading to memory exhaustion when formatting short suggestion messages.
Properly encode spans with a dummy location and non-root `SyntaxContext`
Previously, we would throw away the `SyntaxContext` of any span with a
dummy location during metadata encoding. This commit makes metadata Span
encoding consistent with incr-cache Span encoding - an 'invalid span'
tag is only used when it doesn't lose any information.
Add a dedicated debug-logging option to config.toml
`@Mark-Simulacrum` and I were talking in zulip and we found that turning on debug/trace logging in rustc is fairly confusing, as it effectively depends on debug-assertions and is not documented as such. `@Mark-Simulacrum` mentioned that we should probably have a separate option for logging anyways.
this diff adds that, having the option follow debug-assertions (so everyone's existing config.toml should be fine) and if the option is false
to test I ran ./x.py test <something> twice, once with `debug-logging = false` and once with `debug-logging = true` and made sure i only saw trace's when it was true
Dylan DPC