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Rollup of 11 pull requests #74106

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ryr3 and others added 23 commits July 2, 2020 11:33
Enclose unsafe operations in unsafe blocks
This commit marks temporaries from MIR construction as internal such
that they are skipped in `sanitize_witness` (where each MIR local is
checked to have been contained within the generator interior computed
during typeck). This resolves an ICE whereby the construction of checked
addition introduced a `(u64, bool)` temporary which was not in the HIR
and thus not in the generator interior.

Signed-off-by: David Wood <david@davidtw.co>
to feature(rc_as_ptr)

These were stabilized alongside the Weak versions,
but having `feature = "weak_.."` on a fn definition
for the non-weak pointers is potentially very confusing.
This causes the components of FQN's to behave similarly to other links
in the contents of rustdoc-styled pages.

I (and I hope others at least in part) have found the prior design to be
somewhat confusing, as it is not clear (upon hovering) that the various
parts of the FQN are actually links that the user can navigate to.

In short, this patch makes links in the FQN have an underline when the
user hovers over them, more clearly indicating that they can be used for
navigation.

Signed-off-by: Kristofer Rye <kristofer.rye@gmail.com>
Since rust-lang#73374 the rustc wrapper no longer configures debug assertions
based on RUSTC_DEBUG_ASSERTIONS environment variable.
This adds `read_exact_at` and `write_all_at` to WASI's `FileExt`,
similar to the Unix versions of the same names.
This adjusts the return type of Windows' `OpenOptionsExt::security_qos_flags`
to be consistent with the other functions in the trait.
Previously, if there were a module in scope with the same name as the
primitive, that would take precedence. Coupled with
rust-lang#58699, this made it impossible
to link to the primitive when that module was in scope.

This approach could be extended so that `struct@foo` would no longer resolve
to any type, etc. However, it could not be used for glob imports:

```rust
pub mod foo {
  pub struct Bar;
}

pub enum Bar {}
use foo::*;

// This is expected to link to `inner::Bar`, but instead it will link to the enum.
/// Link to [struct@Bar]
pub struct MyDocs;
```

The reason for this is that this change does not affect the resolution
algorithm of rustc_resolve at all. The only reason we could special-case
primitives is because we have a list of all possible primitives ahead of time.
…bank

Audit hidden/short code suggestions

Should fix rust-lang#73641.
Audit uses of `span_suggestion_short` and `tool_only_span_suggestion` (`span_suggestion_hidden` is already tested with `run-rustfix`). Leave some FIXMEs for futher improvements/fixes.
r? @estebank
libstd/net/tcp.rs: #![deny(unsafe_op_in_unsafe_fn)]

Enclose unsafe operations in unsafe blocks for net/tcp.rs. Fixes part of rust-lang#73904.
…mp-generator-interior, r=matthewjasper

mir: mark mir construction temporaries as internal

Fixes rust-lang#73914.

This PR marks temporaries from MIR construction as internal such that they are skipped in `sanitize_witness` (where each MIR local is checked to have been contained within the generator interior computed during typeck). This resolves an ICE whereby the construction of checked addition introduced a `(u64, bool)` temporary which was not in the HIR and thus not in the generator interior.

r? @matthewjasper
Move A|Rc::as_ptr from feature(weak_into_raw) to feature(rc_as_ptr)

These were stabilized alongside the Weak versions, but having `feature = "weak_.."` on a fn definition for the non-weak pointers is potentially very misleading, especially in a review context where the impl header may not be immediately visible.

r? @RalfJung
@bors rollup=always
…Sapin

libstd: remove some mutable statics in sys::unix

My understanding is that this achieves the same behavior and performance with safe code.
…GuillaumeGomez

rustdoc: Restore underline text decoration on hover for FQN in header

This causes the components of FQN's (e.g. `std`, `net`, and `Ipv4Addr` of the FQN `std::net::Ipv4Addr`) to behave similarly to other links in the contents of rustdoc-styled pages. When the user hovers over them, more clearly indicating that they can be used for navigation.

I (and I hope others at least in part) have found the prior design to be somewhat confusing, as it is not clear (upon hovering) that the various parts of the FQN are actually links that the user can navigate to.

<details><summary>📸 Before, mouse hovered over "net" in the FQN</summary>
<img alt="A rustdoc page with the mouse hovered over the fully-qualified name in the page header, producing no visual change" src="https://user-images.githubusercontent.com/1566689/86538363-4c827000-bebb-11ea-8291-5ea6b85d7e19.png" />
</details>
<details><summary>📸 After, mouse hovered over "net" in the FQN</summary>
<img alt="A rustdoc page with the mouse hovered over the fully-qualified name in the page header, now with an underline showing up under the word hovered over by the mouse" src="https://user-images.githubusercontent.com/1566689/86538471-d3374d00-bebb-11ea-9bb3-7aa2d7a4800b.png" />
</details>
…return-type, r=LukasKalbertodt

Fix the return type of Windows' `OpenOptionsExt::security_qos_flags`.

This adjusts the return type of Windows' `OpenOptionsExt::security_qos_flags`
to be consistent with the other functions in the trait.
…, r=alexcrichton

Add `read_exact_at` and `write_all_at` to WASI's `FileExt`

This adds `read_exact_at` and `write_all_at` to WASI's `FileExt`,
similar to the Unix versions of the same names.
Always resolve type@primitive as a primitive, not a module

Previously, if there were a module in scope with the same name as the
primitive, that would take precedence. Coupled with
rust-lang#58699, this made it impossible
to link to the primitive when that module was in scope.

This approach could be extended so that `struct@foo` would no longer resolve
to any type, etc. However, it could not be used for glob imports:

```rust
pub mod foo {
  pub struct Bar;
}

pub enum Bar {}
use foo::*;

// This is expected to link to `inner::Bar`, but instead it will link to the enum.
/// Link to [struct@Bar]
pub struct MyDocs;
```

The reason for this is that this change does not affect the resolution
algorithm of rustc_resolve at all. The only reason we could special-case
primitives is because we have a list of all possible primitives ahead of time.

Closes rust-lang#74063

r? @Manishearth
…e, r=pietroalbini

Add rust-analyzer to the build manifest

Does not die locally, produces `rust-analyzer-0.1.0-dev-x86_64-unknown-linux-gnu.tar.gz.sha256` and add something about rust-analyzer to some `.toml` file. Seems like a success?
…alfJung

Remove unused RUSTC_DEBUG_ASSERTIONS

Since rust-lang#73374 the rustc wrapper no longer configures debug assertions
based on RUSTC_DEBUG_ASSERTIONS environment variable.

r? @RalfJung
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@bors r+ p=5 rollup=never

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bors commented Jul 6, 2020

📌 Commit 27fdf1c has been approved by Manishearth

@bors bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jul 6, 2020
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bors commented Jul 6, 2020

⌛ Testing commit 27fdf1c with merge d45ccac7f9e1c2df11b433878341e20bfb479091...

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bors commented Jul 6, 2020

💔 Test failed - checks-azure

@bors bors removed the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jul 6, 2020
@bors bors added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jul 6, 2020
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error[E0277]: cannot subtract `core::sync::atomic::AtomicUsize` from `usize`
   --> src/libstd/sys/unix/thread.rs:387:24
    |
387 |         Some(stackaddr - PAGE_SIZE..stackaddr)
    |                        ^ no implementation for `usize - core::sync::atomic::AtomicUsize`
    |
    = help: the trait `core::ops::Sub<core::sync::atomic::AtomicUsize>` is not implemented for `usize`

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