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Fix many spelling mistakes
Signed-off-by: codehorseman <cricis@yeah.net>
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r=davidtwco,oli-obk
Suggest adding `{ .. }` around a const function call with arguments
closes #91020
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[generator_interior] Be more precise with scopes of borrowed places
Previously the generator interior type checking analysis would use the nearest temporary scope as the scope of a borrowed value. This ends up being overly broad for cases such as:
```rust
fn status(_client_status: &Client) -> i16 {
200
}
fn main() {
let client = Client;
let g = move || match status(&client) {
_status => yield,
};
assert_send(g);
}
```
In this case, the borrow `&client` could be considered in scope for the entirety of the `match` expression, meaning it would be viewed as live across the `yield`, therefore making the generator not `Send`.
In most cases, we want to use the enclosing expression as the scope for a borrowed value which will be less than or equal to the nearest temporary scope. This PR changes the analysis to use the enclosing expression as the scope for most borrows, with the exception of borrowed RValues which are true temporary values that should have the temporary scope. There's one further exception where borrows of a copy such as happens in autoref cases also should be ignored despite being RValues.
Joint work with `@nikomatsakis`
Fixes #57017
r? `@tmandry`
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Make ErrorReported impossible to construct outside `rustc_errors`
There are a few places were we have to construct it, though, and a few
places that are more invasive to change. To do this, we create a
constructor with a long obvious name.
cc #69426 `@varkor` `@eddyb` `@estebank`
I actually didn't see that I was assigned to this issue until now...
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Improve `unsafe` diagnostic
This fixes: https://github.com/rust-lang/rust/issues/90880
I didn't use the exact proposed messages though.
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There are a few places were we have to construct it, though, and a few
places that are more invasive to change. To do this, we create a
constructor with a long obvious name.
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Signed-off-by: codehorseman <cricis@yeah.net>
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Rollup of 5 pull requests
Successful merges:
- #94868 (Format core and std macro rules, removing needless surrounding blocks)
- #94951 (Extend the irrefutable_let_patterns lint to let chains)
- #94955 (Refactor: Use `format_args_capture` in some parts of `rustc_parse`)
- #94957 (Improve the explanation about the behaviour of read_line)
- #94974 (Ensure that `let_else` does not interact with `let_chains`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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r=joshtriplett
Ensure that `let_else` does not interact with `let_chains`
As requested on https://github.com/rust-lang/rust/pull/94927.
cc `@joshtriplett` `@estebank`
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Extend the irrefutable_let_patterns lint to let chains
Implements the suggestion from https://github.com/rust-lang/rust/pull/94927#issuecomment-1067078300
We only look for complete suffixes or prefixes of irrefutable let patterns, so
that an irrefutable let pattern in a chain surrounded by refutable ones is
not linted, as it is an useful pattern that has no low-cost replacement (unlike suffixes or prefixes which can just be copied outside of the `if`: either into the `if`'s block, or the block surrounding the `if`).
If all patterns in a let chain are irrefutable, we lint as well.
Depends on #94958 ~~so I included it into the PR for now~~ *which has been merged since*.
r? `@estebank`
cc `@joshtriplett` `@c410-f3r`
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Format core and std macro rules, removing needless surrounding blocks
Many of the asserting and printing macros in `core` and `std` are written with prehistoric-looking formatting, like this:
https://github.com/rust-lang/rust/blob/335ffbfa547df94ac236f5c56130cecf99c8d82b/library/std/src/macros.rs#L96-L101
In modern Rust style this would conventionally be written as follows instead, always using braces and a trailing semicolon on the macro arms:
https://github.com/rust-lang/rust/blob/af53809c874e0afb7be966df4d3cfcaa05277c53/library/std/src/macros.rs#L98-L105
Getting rid of the unneeded braces inside the expansion reduces extraneous indentation in macro-expanded code. For example:
```rust
println!("repro {}", true);
```
```rust
// before:
{
::std::io::_print(
::core::fmt::Arguments::new_v1(
&["repro ", "\n"],
&[::core::fmt::ArgumentV1::new_display(&true)],
),
);
};
```
```rust
// after:
::std::io::_print(
::core::fmt::Arguments::new_v1(
&["repro ", "\n"],
&[::core::fmt::ArgumentV1::new_display(&true)],
),
);
```
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rustdoc-json: More tests, and better jsondocck errors
Helps with #81359
r? `@CraftSpider`
`@rustbot` modify labels: +A-rustdoc-json +T-rustdoc +A-testsuite
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Only look for complete suffixes or prefixes of irrefutable let patterns, so
that an irrefutable let pattern in a chain surrounded by refutable ones is
not linted, as it is an useful pattern.
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relax `suspicious_auto_trait_impls` lint wrt lifetimes
fixes the warning for https://github.com/rust-lang/rust/issues/93367#issuecomment-1063993489.
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Add GUI test to check URLs
The first commit merges both file doing kinda the same thing. Didn't make much sense to keep them separated.
The second commit add checks to ensure the URL has the expected value depending if the search is displayed or not.
r? `@notriddle`
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fix typos
Rework of #94603 which got closed as I was trying to unmerge and repush. This is a subset of changes from the original pr as I sed'd whatever typos I remembered from the original PR
thanks to `@cuishuang` for the original PR
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r=wesleywiser
debuginfo: Fix bug in type name generation for dyn types with associated types but no other generic arguments.
For types like `&dyn Future<Output=bool>` the compiler currently emits invalid types names in debuginfo. This PR fixes this.
Before:
```txt
// DWARF
&dyn core::future::future::Future, Output=bool>
// CodeView
ref$<dyn$<core::future::future::Future,assoc$<Output,bool> > > >
```
After:
```txt
// DWARF
&dyn core::future::future::Future<Output=bool>
// CodeView
ref$<dyn$<core::future::future::Future<assoc$<Output,bool> > > >
```
These syntactically incorrect type names can cause downstream tools (e.g. debugger extensions) crash when trying to parse them.
r? `@wesleywiser`
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debuginfo: Refactor debuginfo generation for types
This PR implements the refactoring of the `rustc_codegen_llvm::debuginfo::metadata` module as described in MCP https://github.com/rust-lang/compiler-team/issues/482.
In particular it
- changes names to use `di_node` instead of `metadata`
- uniformly names all functions that build new debuginfo nodes `build_xyz_di_node`
- renames `CrateDebugContext` to `CodegenUnitDebugContext` (which is more accurate)
- removes outdated parts from `compiler/rustc_codegen_llvm/src/debuginfo/doc.md`
- moves `TypeMap` and functions that work directly work with it to a new `type_map` module
- moves enum related builder functions to a new `enums` module
- splits enum debuginfo building for the native and cpp-like cases, since they are mostly separate
- uses `SmallVec` instead of `Vec` in many places
- removes the old infrastructure for dealing with recursion cycles (`create_and_register_recursive_type_forward_declaration()`, `RecursiveTypeDescription`, `set_members_of_composite_type()`, `MemberDescription`, `MemberDescriptionFactory`, `prepare_xyz_metadata()`, etc)
- adds `type_map::build_type_with_children()` as a replacement for dealing with recursion cycles
- adds many (doc-)comments explaining what's going on
- changes cpp-like naming for C-Style enums so they don't get a `enum$<...>` name (because the NatVis visualizer does not apply to them)
- fixes detection of what is a C-style enum because some enums where classified as C-style even though they have fields
- changes cpp-like naming for generator enums so that NatVis works for them
- changes the position of discriminant debuginfo node so it is consistently nested inside the top-level union instead of, sometimes, next to it
The following could be done in subsequent PRs:
- add caching for `closure_saved_names_of_captured_variables`
- add caching for `generator_layout_and_saved_local_names`
- fix inconsistent handling of what is considered a C-style enum wrt to debuginfo
- rename `metadata` module to `types`
- move common generator fields to front instead of appending them
This PR is based on https://github.com/rust-lang/rust/pull/93644 which is not merged yet.
Right now, the changes are all done in one big commit. They could be split into smaller commits but hopefully the list of changes above makes it tractable to review them as a single commit too.
For now: r? `@ghost` (let's see if this affects compile times)
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test case architecture independent.
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More robust fallback for `use` suggestion
Our old way to suggest where to add `use`s would first look for pre-existing `use`s in the relevant crate/module, and if there are *no* uses, it would fallback on trying to use another item as the basis for the suggestion.
But this was fragile, as illustrated in issue #87613
This PR instead identifies span of the first token after any inner attributes, and uses *that* as the fallback for the `use` suggestion.
Fix #87613
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check ~Projection~ all supertrait bounds when confirming dyn candidate
I'm pretty sure Projection is the only other PredicateKind that we care about enforcing here.
Fixes #80800
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r=flip1995,wesleywiser
Improve `expect` impl and handle `#[expect(unfulfilled_lint_expectations)]` (RFC 2383)
This PR updates unstable `ExpectationIds` in stashed diagnostics and adds some asserts to ensure that the stored expectations are really empty in the end. Additionally, it handles the `#[expect(unfulfilled_lint_expectations)]` case.
According to the [Errors and lints docs](https://rustc-dev-guide.rust-lang.org/diagnostics.html#diagnostic-levels) the `error` level should only be used _"when the compiler detects a problem that makes it unable to compile the program"_. As this isn't the case with `#[expect(unfulfilled_lint_expectations)]` I decided to only create a warning. To avoid adding a new lint only for this case, I simply emit a `unfulfilled_lint_expectations` diagnostic with an additional note.
---
r? `@wesleywiser` I'm requesting a review from you since you reviewed the previous PR https://github.com/rust-lang/rust/pull/87835. You are welcome to reassign it if you're busy :upside_down_face:
rfc: [RFC-2383](https://rust-lang.github.io/rfcs/2383-lint-reasons.html)
tracking issue: https://github.com/rust-lang/rust/issues/85549
cc: `@flip1995` In case you're also interested in this :)
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Type params and assoc types have unit metadata if they are sized
Extend the logic in `Pointee` projection to ensure that we can satisfy `<T as Pointee>::Metadata = ()` if `T: Sized`.
cc: `@SimonSapin` and #93959
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Stabilise `aarch64_target_feature`
This PR stabilises `aarch64_target_feature` - see https://github.com/rust-lang/rust/issues/90620
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works for them
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This commit
- changes names to use di_node instead of metadata
- uniformly names all functions that build new debuginfo nodes build_xyz_di_node
- renames CrateDebugContext to CodegenUnitDebugContext (which is more accurate)
- moves TypeMap and functions that work directly work with it to a new type_map module
- moves and reimplements enum related builder functions to a new enums module
- splits enum debuginfo building for the native and cpp-like cases, since they are mostly separate
- uses SmallVec instead of Vec in many places
- removes the old infrastructure for dealing with recursion cycles (create_and_register_recursive_type_forward_declaration(), RecursiveTypeDescription, set_members_of_composite_type(), MemberDescription, MemberDescriptionFactory, prepare_xyz_metadata(), etc)
- adds type_map::build_type_with_children() as a replacement for dealing with recursion cycles
- adds many (doc-)comments explaining what's going on
- changes cpp-like naming for C-Style enums so they don't get a enum$<...> name (because the NatVis visualizer does not apply to them)
- fixes detection of what is a C-style enum because some enums where classified as C-style even though they have fields
- changes the position of discriminant debuginfo node so it is consistently nested inside the top-level union instead of, sometimes, next to it
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Fix definition of Box in ssa-analysis-regression-50041.rs
The Box in liballoc always has a field for the allocator. It is quite
hard to support both the old and new definition of Box in cg_clif so
this change uses the new definition in this test too.
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