Make a few functions private
These were made public in 3105bcfdc1. This
is so long ago I doubt anyone remembers why they're public. No one outside rustc_session uses
them, including in-tree tools.
Use details tag for trait implementors.
Part of #83332 and following on from #83337 and #83355.
This removes one category of JS-generated toggles (implementors), and replaces them with a `<details>` tag. This simplifies the JS, and fixes some bugs where things that were supposed to be hidden by the toggle were not hidden. Compare https://hoffman-andrews.com/rust/details-implementors/std/io/trait.Read.html#impl-Read vs https://doc.rust-lang.org/nightly/std/io/trait.Read.html#implementors.
This introduces a `left: -23px` to put the toggle in the correct place, matching the current style for `.collapse-toggle`.
It's worth noting this introduces a slight behavior change: since the entire line is now a `<summary>`, any part of the line is clickable. So for instance, in `impl Read for File`, clicking `impl` or `for` will collapse / expand the docs. Clicking `Read` or `File` still links to the appropriate documentation as before.
bootstrap: use bash on illumos to run install scripts
The default illumos shell ("sh" in the default PATH) is ksh93, rather
than bash, and does not support constructs like "local" that came from
bash. The bootstrap function for invoking "install.sh" scripts should
use "bash" explicitly there to avoid issues.
implement `TrustedRandomAccess` for `Take` iterator adapter
`TrustedRandomAccess` requires the iterator length to fit within `usize`. `take(n)` only constrains the upper bound of an iterator. So if the inner is `TrustedRandomAccess` (which already implies a finite length) then so can be `Take`.
```````@rustbot``````` label T-libs-impl
On stable, suggest removing `#![feature]` for features that have been stabilized
I don't know how to test this (https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/Run.20tests.20without.20enabling.20nightly.20features.3F). I confirmed locally that this gives the
appropriate help with `channel = "beta"`:
```
error[E0554]: `#![feature]` may not be used on the beta release channel
--> src/lib.rs:2:1
|
2 | #![feature(min_const_generics)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
|
= help: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable
error[E0554]: `#![feature]` may not be used on the beta release channel
--> src/lib.rs:3:1
|
3 | #![feature(min_const_generics, min_specialization)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable
error[E0554]: `#![feature]` may not be used on the beta release channel
--> src/lib.rs:4:1
|
4 | #![feature(box_patterns)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^
```
Closes https://github.com/rust-lang/rust/issues/83715.
It can be calculated on-demand even without a TyCtxt.
This also changed `from_item_kind` to take a whole item, which avoids
having to add more and more parameters.
Fix ICE if original_span(fn_sig) returns a span not in body sourcefile
Fixes: #84421
r? ````@tmandry````
fyi: ````@wesleywiser```` ````@sdroege```` ````@rajivshah3````
doc/platform-support: clarify UEFI support
Add missing information on what standard-library features are supported by the UEFI targets.
All current UEFI targets (which is i686 and x86_64) only support no_std cross-compilations. `std` support has not been worked on and is unlikely to emerge anytime soon, due to the much restricted environment that UEFI provides.
Move `sys_common::poison` to `sync::poison`
`sys_common` should not contain publicly exported types, only platform-independent abstractions on top of `sys`, which `sys_common::poison` is not. There is thus no reason for the module to not live under `sync`.
Part of #84187.
Clean up .gitignore
Categorizes entries in the `.gitignore` file.
Other changes:
- added `desktop.ini` (Windows equivalent of `.DS_Store`)
- removed `.hg/` and `.hgignore`
rustdoc: Convert sub-variant toggle to HTML
Instead of creating a JS toggle, this injects details/summary for
sub-variants of enums. This also fixes the CSS so that the toggle button
does not jump when expanding/collapsing.
Takes inspiration from #83337 and should be considered part of #83332. Not quite sure if the `.sub-variant` selectors could be further simplified? AFAICS it is only used in that place, and that does not seem to allow any recursion.
Remove duplicated fn(Box<[T]>) -> Vec<T>
`<[T]>::into_vec()` does the same thing as `Vec::from::<Box<[T]>>()`, so they can be implemented in terms of each other. This was the previous implementation of `Vec::from()`, but was changed in #78461. I'm not sure what the rationale was for that change, but it seems preferable to maintain a single implementation.
Improve `Iterator::by_ref` example
I split the example into two: one that fails to compile, and one that
works. I also made them identical except for the addition of `by_ref`
so we don't confuse readers with random differences.
cc `@steveklabnik,` who is the one that added the previous version of this example
rustc: Use LLVM's new saturating float-to-int intrinsics
This commit updates rustc, with an applicable LLVM version, to use
LLVM's new `llvm.fpto{u,s}i.sat.*.*` intrinsics to implement saturating
floating-point-to-int conversions. This results in a little bit tighter
codegen for x86/x86_64, but the main purpose of this is to prepare for
upcoming changes to the WebAssembly backend in LLVM where wasm's
saturating float-to-int instructions will now be implemented with these
intrinsics.
This change allows simplifying a good deal of surrounding code, namely
removing a lot of wasm-specific behavior. WebAssembly no longer has any
special-casing of saturating arithmetic instructions and the need for
`fptoint_may_trap` is gone and all handling code for that is now
removed. This means that the only wasm-specific logic is in the
`fpto{s,u}i` instructions which only get used for "out of bounds is
undefined behavior". This does mean that for the WebAssembly target
specifically the Rust compiler will no longer be 100% compatible with
pre-LLVM 12 versions, but it seems like that's unlikely to be relied on
by too many folks.
Note that this change does immediately regress the codegen of saturating
float-to-int casts on WebAssembly due to the specialization of the LLVM
intrinsic not being present in our LLVM fork just yet. I'll be following
up with an LLVM update to pull in those patches, but affects a few other
SIMD things in flight for WebAssembly so I wanted to separate this change.
Eventually the entire `cast_float_to_int` function can be removed when
LLVM 12 is the minimum version, but that will require sinking the
complexity of it into other backends such as Cranelfit.
Using `fuse` on an iterator that incorrectly implements
`FusedIterator` does not fuse the iterator. This commit adds a
note about this in the documentation of this method to increase
awareness about this potential issue (esp. when relying on fuse
in unsafe code).
rustdoc: Remove most fields from ExternalCrate
Once https://github.com/rust-lang/rust/issues/84304 is fixed, I can get rid of ExternCrate altogether in favor of CrateNum, but in the meantime, this shrinks ExternalCrate quite a lot.
This might hurt compile-times; if it does, I can add `primitive` and `keyword` queries. I expect this to improve compilemem.
Helps with https://github.com/rust-lang/rust/issues/76382.
r? GuillaumeGomez
rustdoc: Hide `#text` in doc-tests
Since `#![attr]` and `#[attr]` are the only valid syntax that start with `#`, we can just special case those two tokens.
Fixes https://github.com/rust-lang/rust/issues/83284.
RustWrapper: work around unification of diagnostic handlers
This lets me build against llvm/main as of March 23rd, 2021. I'm not
entirely sure this is _correct_, but it appears to be functionally
identical to what was done in LLVM: existing callsites of
setInlineAsmDiagnosticHandler were moved to SetDiagnosticHandler() on
the context object, which we already set up in both places that we
called setInlineAsmDiagnosticHandler().
