Mara Bos [Thu, 5 Nov 2020 09:29:50 +0000 (10:29 +0100)]
Rollup merge of #78727 - liketechnik:issue-55201, r=GuillaumeGomez
(rustdoc) fix test for trait impl display
The test checks that parameters and return values with `impl Trait` types are correctly generated in rustdoc's output.
In essence, the previous version of the test checked the absence of values that would never be generated by rustdoc, so it could basically never fail. These values were adjusted to the expected output and are now required to exist in rustdoc's output. See https://github.com/rust-lang/rust/issues/55201#issuecomment-716182474 for a detailed explanation of the reasoning behind the changes.
Note that the output of rustdoc for `impl Trait`s in parameters and return values did not change since the inital test creation, so this PR only modifies the test.
Mara Bos [Thu, 5 Nov 2020 09:29:45 +0000 (10:29 +0100)]
Rollup merge of #78584 - notriddle:master, r=GuillaumeGomez
Add keyboard handling to the theme picker menu
This PR is mostly designed to bring the theme picker closer to feature parity with the menu bar from docs.rs. Though the rustdoc theme picker is technically already usable from the keyboard, it's really weird that arrow keys work on some of the menus, but not all of them, in the exact same page.
bors [Thu, 5 Nov 2020 05:14:53 +0000 (05:14 +0000)]
Auto merge of #78754 - pietroalbini:checkout-v2, r=Mark-Simulacrum
Bump actions/checkout to version 2
This was recommended by GitHub Support to try reducing the things that could've caused #78743. I checked the changelog and there should be no practical impact for us (we already set an explicit fetch-depth).
Pietro Albini [Wed, 4 Nov 2020 23:05:20 +0000 (00:05 +0100)]
ci: bump actions/checkout to version 2
This was recommended by GitHub Support to try reducing the things that
could've caused #78743. I checked the changelog and there should be no
practical impact for us (we already set an explicit fetch-depth).
bors [Wed, 4 Nov 2020 22:45:15 +0000 (22:45 +0000)]
Auto merge of #78662 - sexxi-goose:add_expr_id_to_delegate, r=nikomatsakis
Provide diagnostic suggestion in ExprUseVisitor Delegate
The [Delegate trait](https://github.com/rust-lang/rust/blob/981346fc07dd5ef414c5b1b21999f7604cece006/compiler/rustc_typeck/src/expr_use_visitor.rs#L28-L38) currently use `PlaceWithHirId` which is composed of Hir `Place` and the
corresponding expression id.
Even though this is an accurate way of expressing how a Place is used,
it can cause confusion during diagnostics.
Eg:
```
let arr : [String; 5];
let [a, ...] = arr;
^^^ E1 ^^^ = ^^E2^^
```
Here `arr` is moved because of the binding created E1. However, when we
point to E1 in diagnostics with the message `arr` was moved, it can be
confusing. Rather we would like to report E2 to the user.
bors [Wed, 4 Nov 2020 20:02:08 +0000 (20:02 +0000)]
Auto merge of #78740 - pietroalbini:no-more-legacy, r=Mark-Simulacrum
Remove legacy promote-release support from build-manifestg
Now that we're not running the [legacy `promote-release`](https://github.com/rust-lang/rust-central-station/tree/master/promote-release) anymore, this PR removes support from it from `bootstrap` and `build-manifest`.
bors [Wed, 4 Nov 2020 14:26:03 +0000 (14:26 +0000)]
Auto merge of #77227 - oli-obk:const_val_🌳_prelude, r=RalfJung
Refactorings in preparation for const value trees
cc #72396
This PR changes the `Scalar::Bits { data: u128, size: u8 }` variant to `Scalar::Bits(ScalarInt)` where `ScalarInt` contains the same information, but is `repr(packed)`. The reason for using a packed struct is to allow enum variant packing to keep the original size of `Scalar` instead of adding another word to its size due to padding.
Other than that the PR just gets rid of all the inspection of the internal fields of `Scalar::Bits` which were frankly scary. These fields have invariants that we need to uphold and we can't do that without making the fields private.
bors [Wed, 4 Nov 2020 11:37:36 +0000 (11:37 +0000)]
Auto merge of #78677 - Aaron1011:fix/capture-inner-attrs, r=petrochenkov
Use reparsed `TokenStream` if we captured any inner attributes
Fixes #78675
We now bail out of `prepend_attrs` if we ended up capturing any inner
attributes (which can happen in several places, due to token capturing
for `macro_rules!` arguments.
bors [Tue, 3 Nov 2020 18:58:06 +0000 (18:58 +0000)]
Auto merge of #78711 - m-ou-se:rollup-pxqnny7, r=m-ou-se
Rollup of 7 pull requests
Successful merges:
- #77950 (Add support for SHA256 source file hashing)
- #78624 (Sync rustc_codegen_cranelift)
- #78626 (Improve errors about #[deprecated] attribute)
- #78659 (Corrected suggestion for generic parameters in `function_item_references` lint)
- #78687 (Suggest library/std when running all stage 0 tests)
- #78699 (Show more error information in lldb_batchmode)
- #78709 (Fix panic in bootstrap for non-workspace path dependencies.)
Mara Bos [Tue, 3 Nov 2020 18:32:44 +0000 (19:32 +0100)]
Rollup merge of #78709 - ehuss:fix-in_tree_crates-non-member, r=Mark-Simulacrum
Fix panic in bootstrap for non-workspace path dependencies.
If you add a `path` dependency to a `Cargo.toml` that is located outside of the workspace, then the `in_tree_crates` function can panic because it finds a path dependency that is not defined (since it uses `cargo metadata --no-deps`). This fixes it by skipping over those entries, which are usually not things you select on the command-line.
Mara Bos [Tue, 3 Nov 2020 18:32:40 +0000 (19:32 +0100)]
Rollup merge of #78687 - jyn514:bootstrap-help, r=Mark-Simulacrum
Suggest library/std when running all stage 0 tests
r? ``@Mark-Simulacrum``
cc ``@ijackson``
For context, this came out of a discord conversation where ``@ijackson`` was running `test --stage 1` when they were only adding doc-tests to the standard library.
Mara Bos [Tue, 3 Nov 2020 18:32:38 +0000 (19:32 +0100)]
Rollup merge of #78659 - ayrtonm:fn-ref-lint-fix, r=oli-obk
Corrected suggestion for generic parameters in `function_item_references` lint
This commit handles functions with generic type parameters like you pointed out as well as const generics. Also this is probably a minor thing, but the type alias you used in the example doesn't show up so the suggestion right now would be `size_of::<[u8; 16]> as fn() ->`. This is because the lint checker works with MIR instead of HIR. I don't think we can get the alias at that point, but let me know if I'm wrong and there's a way to fix this. Also I put you as the reviewer, but I'm not sure if you want to review it or if it makes more sense to ask one of the original reviewers of this lint.
closes #78571
Mara Bos [Tue, 3 Nov 2020 18:32:36 +0000 (19:32 +0100)]
Rollup merge of #78626 - fusion-engineering-forks:deprecated-trait-impl, r=estebank
Improve errors about #[deprecated] attribute
This change:
1. Turns `#[deprecated]` on a trait impl block into an error, which fixes #78625;
2. Changes these and other errors about `#[deprecated]` to use the span of the attribute instead of the item; and
3. Turns this error into a lint, to make sure it can be capped with `--cap-lints` and doesn't break any existing dependencies.
Can be reviewed per commit.
---
Example:
```rust
struct X;
#[deprecated = "a"]
impl Default for X {
#[deprecated = "b"]
fn default() -> Self {
X
}
}
```
Before:
```
error: This deprecation annotation is useless
--> src/main.rs:6:5
|
6 | / fn default() -> Self {
7 | | X
8 | | }
| |_____^
```
After:
```
error: this `#[deprecated]' annotation has no effect
--> src/main.rs:3:1
|
3 | #[deprecated = "a"]
| ^^^^^^^^^^^^^^^^^^^ help: try removing the deprecation attribute
|
= note: `#[deny(useless_deprecated)]` on by default
error: this `#[deprecated]' annotation has no effect
--> src/main.rs:5:5
|
5 | #[deprecated = "b"]
| ^^^^^^^^^^^^^^^^^^^ help: try removing the deprecation attribute
```
Yuki Okushi [Tue, 3 Nov 2020 06:27:21 +0000 (15:27 +0900)]
Rollup merge of #78676 - kiffie:embedded-bare-mipsr2, r=jonas-schievink
add mipsel-unknown-none target
This adds a target for bare MIPS32r2, little endian, softfloat. This target can be used for PIC32 microcontrollers (or possibly for other devices that have a MIPS MCU core such as the M4K core).
Tried to find a name for the target that is in line with the naming scheme apparently used for the other MIPS targets.
Yuki Okushi [Tue, 3 Nov 2020 06:27:16 +0000 (15:27 +0900)]
Rollup merge of #78663 - Aaron1011:fix/cap-future-compat, r=tmandry
Fix ICE when a future-incompat-report has its command-line level capped
Fixes #78660
With PR https://github.com/rust-lang/rust/pull/75534 merged, we now run
more lint-related code for future-incompat-report, even when their final
level is Allow. Some lint-related code was not expecting `Level::Allow`,
and had an explicit panic.
This PR explicitly tracks the lint level set on the command line before
`--cap-lints` is applied. This is used to emit a more precise error
note (e.g. we don't say that `-W lint-name` was specified on the
command line just because a lint was capped to Warn). As a result, we
can now correctly emit a note that `-A` was used if we got
`Level::Allow` from the command line (before the cap is applied).
Yuki Okushi [Tue, 3 Nov 2020 06:27:03 +0000 (15:27 +0900)]
Rollup merge of #78376 - Aaron1011:feature/consistent-empty-expr, r=petrochenkov
Treat trailing semicolon as a statement in macro call
See #61733 (comment)
We now preserve the trailing semicolon in a macro invocation, even if
the macro expands to nothing. As a result, the following code no longer
compiles:
bors [Tue, 3 Nov 2020 04:27:27 +0000 (04:27 +0000)]
Auto merge of #78448 - rylev:cache-foreign_modules, r=wesleywiser
foreign_modules query hash table lookups
When compiling a large monolithic crate we're seeing huge times in the `foreign_modules` query due to repeated iteration over foreign modules (in order to find a module by its id). This implements hash table lookups so that which massively reduces time spent in that query in this particular case. We'll need to see if the overhead of creating the hash table has a negative impact on performance in more normal compilation scenarios.
bors [Tue, 3 Nov 2020 00:58:24 +0000 (00:58 +0000)]
Auto merge of #77271 - petrochenkov:notokenexp, r=Aaron1011
Expand `NtExpr` tokens only in key-value attributes
Implement the experiment described in https://github.com/rust-lang/rust/issues/55414#issuecomment-554005412
This PR also removes some customization points and token visiting functionality from AST visitors.
Read-only visitor no longer visits tokens, mutable visitor visits tokens only when specifically enabled, mutable token visiting is restricted to its single intended use case.
I haven't changed the representation of `MacArgs::Eq` yet, but it potentially can use a `TokenTree` or a `Token` instead of `TokenStream`.
It's hard to get rid of `Nonterminal::NtExpr` there (and e.g. replace it with `ast::Expr`) due to the dual nature of key-value attributes (the value is both an expression and a token stream, depending on context), and `Nonterminal` has all the machinery for maintaining both representations in sync.
Aaron Hill [Mon, 2 Nov 2020 18:22:03 +0000 (13:22 -0500)]
Use reparsed `TokenStream` if we captured any inner attributes
Fixes #78675
We now bail out of `prepend_attrs` if we ended up capturing any inner
attributes (which can happen in several places, due to token capturing
for `macro_rules!` arguments.
Aaron Hill [Sun, 25 Oct 2020 21:14:19 +0000 (17:14 -0400)]
Treat trailing semicolon as a statement in macro call
See https://github.com/rust-lang/rust/issues/61733#issuecomment-716188981
We now preserve the trailing semicolon in a macro invocation, even if
the macro expands to nothing. As a result, the following code no longer
compiles:
bors [Mon, 2 Nov 2020 16:01:10 +0000 (16:01 +0000)]
Auto merge of #78607 - HeroicKatora:post-order-walk-iter, r=davidtwco
Transform post order walk to an iterative approach
The previous recursive approach might overflow the stack when walking a
particularly deep, list-like, graph. In particular, dominator
calculation for borrow checking does such a traversal and very long
functions might lead to a region dependency graph with in this
problematic structure.
This addresses what appears to be the cause of #78567 (`@SunHao-0` thanks for the stack trace).
bors [Mon, 2 Nov 2020 13:07:01 +0000 (13:07 +0000)]
Auto merge of #78667 - pietroalbini:lldb-unbuffered, r=Mark-Simulacrum
Try running lldb_batchmode.py with PYTHONUNBUFFERED
When reporting fatal errors, LLVM calls abort() to exit the program. There is a chance that might interfere with Python printing stuff to stdout, as by default it relies on buffering to increase performance.
This commit tries to disable Python buffering, to hopefully get useful logs while debugging #78665.
Pietro Albini [Mon, 2 Nov 2020 12:20:16 +0000 (13:20 +0100)]
compiletest: try running lldb_batchmode.py with PYTHONUNBUFFERED
When reporting fatal errors, LLVM calls abort() to exit the program.
There is a chance that might interfere with Python printing stuff to
stdout, as by default it relies on buffering to increase performance.
This commit tries to disable Python buffering, to hopefully get useful
logs while debugging #78665.
bors [Mon, 2 Nov 2020 10:42:45 +0000 (10:42 +0000)]
Auto merge of #78661 - JohnTitor:rollup-er2isja, r=JohnTitor
Rollup of 5 pull requests
Successful merges:
- #78606 (Clarify handling of final line ending in str::lines())
- #78610 (Do not remove tokens before AST json serialization)
- #78620 (Trivial fixes to bitwise operator documentation)
- #78627 (Point out that total_cmp is no strict superset of partial comparison)
- #78637 (Add fetch_update methods to AtomicBool and AtomicPtr)