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[rustdoc] Only keep impl blocks from bodies
Fixes https://github.com/rust-lang/rust/issues/111415.
The problem was that we kept everything inside bodies whereas only impl blocks are actually accessible from outside bodies.
r? `@notriddle`
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Error message all end up passing into a function as an `impl
Into<{D,Subd}iagnosticMessage>`. If an error message is creatd as
`&format("...")` that means we allocate a string (in the `format!`
call), then take a reference, and then clone (allocating again) the
reference to produce the `{D,Subd}iagnosticMessage`, which is silly.
This commit removes the leading `&` from a lot of these cases. This
means the original `String` is moved into the
`{D,Subd}iagnosticMessage`, avoiding the double allocations. This
requires changing some function argument types from `&str` to `String`
(when all arguments are `String`) or `impl
Into<{D,Subd}iagnosticMessage>` (when some arguments are `String` and
some are `&str`).
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Introduce `DynSend` and `DynSync` auto trait for parallel compiler
part of parallel-rustc #101566
This PR introduces `DynSend / DynSync` trait and `FromDyn / IntoDyn` structure in rustc_data_structure::marker. `FromDyn` can dynamically check data structures for thread safety when switching to parallel environments (such as calling `par_for_each_in`). This happens only when `-Z threads > 1` so it doesn't affect single-threaded mode's compile efficiency.
r? `@cjgillot`
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r=notriddle
Correctly handle associated items of a trait inside a `#[doc(hidden)]` item
Fixes https://github.com/rust-lang/rust/issues/111064.
cc `@compiler-errors`
r? `@notriddle`
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Introduce `AliasKind::Inherent` for inherent associated types
Allows us to check (possibly generic) inherent associated types for well-formedness.
Type inference now also works properly.
Follow-up to #105961. Supersedes #108430.
Fixes #106722.
Fixes #108957.
Fixes #109768.
Fixes #109789.
Fixes #109790.
~Not to be merged before #108860 (`AliasKind::Weak`).~
CC `@jackh726`
r? `@compiler-errors`
`@rustbot` label T-types F-inherent_associated_types
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Make the BUG_REPORT_URL configurable by tools
This greatly simplifies how hard it is to set a custom bug report url; previously tools had to copy
the entire hook implementation.
I haven't changed clippy in case they want to make the change upstream instead of the subtree, but
I'm happy to do so here if the maintainers want - cc ````@rust-lang/clippy````
Fixes https://github.com/rust-lang/rust/issues/109486.
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compiler-errors:error-guaranteed-should-be-scarier-to-construct, r=BoxyUwU
Mark `ErrorGuaranteed` constructor as deprecated so people don't use it
You should never ever ever ever ever ever ever ever ever ever ever ever ever ever ever ever ever use this function unless you know what you're doing, so make it harder to accidentally use it!
Alternatives are to change the name to sound scarier, make it `unsafe` (though it's not really a soundness thing), or work on deeper refactors to make it private.
r? `@BoxyUwU`
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rustdoc-search: add slices and arrays to index
This indexes them as primitives with generics, so `slice<u32>` is how you search for `[u32]`, and `array<u32>` for `[u32; 1]`. A future commit will desugar the square bracket syntax to search both arrays and slices at once.
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Implement RFC 3348, `c"foo"` literals
RFC: https://github.com/rust-lang/rfcs/pull/3348
Tracking issue: #105723
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Replace `tcx.mk_trait_ref` with `TraitRef::new`
First step in implementing https://github.com/rust-lang/compiler-team/issues/616
r? `@lcnr`
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r=GuillaumeGomez
rustdoc: restructure type search engine to pick-and-use IDs
Fixes #110029
Preview: https://notriddle.com/rustdoc-demo-html-3/search-corrections/std/index.html?search=-%3E%20streaming
This change makes it so, instead of mixing string distance with type unification, function signature search works by mapping names to IDs at the start, reporting to the user any cases where it had to make corrections, and then matches with IDs when going through the items.
This only changes function searches. Name searches are left alone, and corrections are only done when there's a single item in the search query.
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Avoid ICEing miri on layout query cycles
Miri has special logic for catching panics during interpretation. Raising a fatal error in rustc uses unwinding to abort compilation. Thus miri ends up catching that fatal error and thinks it saw an ICE. While we should probably change that to ignore `Fatal` payloads, I think it's also neat to continue compilation after a layout query cycle 😆
Query cycles now (in addition to reporting an error just like before), return `Err(Cycle)` instead of raising a fatal error. This allows the interpreter to wind down via the regular error paths.
r? `@RalfJung` for a first round, feel free to reroll for the compiler team once the miri side looks good
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resolve: One more attempt to simplify `module_children`
If the next step is performed and `fn module_children_local` is merged with the `module_children` query, then it causes perf regressions, regardless of whether query result feeding is [used](https://perf.rust-lang.org/compare.html?start=43a78029b4f4d92978b8fde0a677ea300b113c41&end=2eb5bcc5068b9d92f74bcb1797da664865d6981d&stat=instructions:u) or [not](https://perf.rust-lang.org/compare.html?start=2fce2290865f012391b8f3e581c3852a248031fa&end=2a33d6cd99481d1712037a79e7d66a8aefadbf72&stat=instructions:u).
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Implement negative bounds for internal testing purposes
Implements partial support the `!` negative polarity on trait bounds. This is incomplete, but should allow us to at least be able to play with the feature.
Not even gonna consider them as a public-facing feature, but I'm implementing them because would've been nice to have in UI tests, for example in #110671.
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Currently a `{D,Subd}iagnosticMessage` can be created from any type that
impls `Into<String>`. That includes `&str`, `String`, and `Cow<'static,
str>`, which are reasonable. It also includes `&String`, which is pretty
weird, and results in many places making unnecessary allocations for
patterns like this:
```
self.fatal(&format!(...))
```
This creates a string with `format!`, takes a reference, passes the
reference to `fatal`, which does an `into()`, which clones the
reference, doing a second allocation. Two allocations for a single
string, bleh.
This commit changes the `From` impls so that you can only create a
`{D,Subd}iagnosticMessage` from `&str`, `String`, or `Cow<'static,
str>`. This requires changing all the places that currently create one
from a `&String`. Most of these are of the `&format!(...)` form
described above; each one removes an unnecessary static `&`, plus an
allocation when executed. There are also a few places where the existing
use of `&String` was more reasonable; these now just use `clone()` at
the call site.
As well as making the code nicer and more efficient, this is a step
towards possibly using `Cow<'static, str>` in
`{D,Subd}iagnosticMessage::{Str,Eager}`. That would require changing
the `From<&'a str>` impls to `From<&'static str>`, which is doable, but
I'm not yet sure if it's worthwhile.
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uplift `clippy::clone_double_ref` as `suspicious_double_ref_op`
Split from #109842.
r? ``@compiler-errors``
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This greatly simplifies how hard it is to set a custom bug report url; previously tools had to copy
the entire hook implementation.
- Switch clippy to the new hook
This also adds a `extra_info` callback so clippy can include its own version number, which differs
from rustc's.
- Call `install_ice_hook` in rustfmt
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rustdoc: catch and don't blow up on impl Trait cycles
Fixes #110629
An odd feature of Rust is that `Foo` is invalid, but `Bar` is okay:
type Foo<'a, 'b> = Box<dyn PartialEq<Foo<'a, 'b>>>;
type Bar<'a, 'b> = impl PartialEq<Bar<'a, 'b>>;
To get it right, track every time rustdoc descends into a type alias, so if it shows up twice, it can be write the path instead of infinitely expanding it.
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An odd feature of Rust is that `Foo` is invalid, but `Bar` is okay:
type Foo<'a, 'b> = Box<dyn PartialEq<Foo<'a, 'b>>>;
type Bar<'a, 'b> = impl PartialEq<Bar<'a, 'b>>;
To get it right, track every time rustdoc descends into a type alias,
so if it shows up twice, it can be write the path instead of
infinitely expanding it.
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rustdoc: Get `repr` information through `AdtDef` for foreign items
As suggested by `@notriddle,` this approach works too. The only downside is that the display of the original attribute isn't kept, but I think it's an acceptable downside.
r? `@notriddle`
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rustdoc: fix weird margins between Deref impl items
## Before
## After
## Description
In the old setup, if the dereffed-to item has multiple impl blocks, each one gets its own `div.impl-items` in the section, but there are no headers separating them. Since the last method in a `div.impl-items` has no bottom margin, and there are no margins between these divs, there is no margin between the last method of one impl and the first method of the following impl.
This patch fixes it by simplifying the HTML. Each Deref block gets exactly one `div.impl-items`, no matter how many impl blocks it actually has.
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In the old setup, if the dereffed-to item has multiple impl blocks,
each one gets its own `div.impl-items` in the section, but there
are no headers separating them. Since the last method in a
`div.impl-items` has no bottom margin, and there are no margins
between these divs, there is no margin between the last method
of one impl and the first method of the following impl.
This patch fixes it by simplifying the HTML. Each Deref block gets
exactly one `div.impl-items`, no matter how many impl blocks it
actually has.
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This should only affect inherent associated types.
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Rollup of 6 pull requests
Successful merges:
- #110766 (More core::fmt::rt cleanup.)
- #110873 (Migrate trivially translatable `rustc_parse` diagnostics)
- #110904 (rustdoc: rebind bound vars to type-outlives predicates)
- #110913 (Add some missing built-in lints)
- #110918 (`remove_dir_all`: try deleting the directory even if `FILE_LIST_DIRECTORY` access is denied)
- #110920 (Fix unavailable url)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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rustdoc: rebind bound vars to type-outlives predicates
Fixes #110900.
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