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use structured suggestions for nonexistent fields
r? @estebank
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Add `-Z instrument-mcount`
This flag inserts `mcount` function call to the beginning of every function
after inline processing. So tracing tools like uftrace [1] (or ftrace for
Linux kernel modules) have a chance to examine function calls.
It is similar to the `-pg` flag provided by gcc or clang, but without
generating a `__gmon_start__` function for executables. If a program
runs without being traced, no `gmon.out` will be written to disk.
Under the hood, it simply adds `"instrument-function-entry-inlined"="mcount"`
attribute to every function. The `post-inline-ee-instrument` LLVM pass does
the actual job.
[1]: https://github.com/namhyung/uftrace
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This flag inserts `mcount` function call to the beginning of every function
after inline processing. So tracing tools like uftrace [1] (or ftrace for
Linux kernel modules) have a chance to examine function calls.
It is similar to the `-pg` flag provided by gcc or clang, but without
generating a `__gmon_start__` function for executables. If a program
runs without being traced, no `gmon.out` will be written to disk.
Under the hood, it simply adds `"instrument-function-entry-inlined"="mcount"`
attribute to every function. The `post-inline-ee-instrument` LLVM pass does
the actual job.
[1]: https://github.com/namhyung/uftrace
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Group dep node data into a single structure
r? @michaelwoerister
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Do not complain about missing crate named as a keyword
Fix #57198.
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Add specific diagnostic when attempting to transmute between equal generic types
Also clarifies the wording of E0512.
Fixes https://github.com/rust-lang/rust/issues/49793.
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Uninline some debugging code and use unlikely! macro
r? @michaelwoerister
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submodules: update clippy from f7bdf500 to 39bd8449
Fixes clippy toolstate
Changes:
````
UI test cleanup: Extract iter_skip_next from methods.rs
Update test output after rebase
Remove false negatives from known problems
Implement use_self for tuple structs
Document known problems
rustup https://github.com/rust-lang/rust/pull/56225/
Remove unnecessary `use` statements after `cargo fix`
Apply cargo fix --edition-idioms fixes
Use match ergonomics for booleans lint
Use match ergonomics for block_in_if_condition lint
Use match ergonomics for bit_mask lint
Use match ergonomics for attrs lint
Use match ergonomics for assign_ops lint
Use match ergonomics for artithmetic lint
Use match ergonomics for approx_const lint
Remove crate:: prefixes from crate paths
Support array indexing expressions in unused write to a constant
Mark writes to constants as side-effect-less
Update README local run command to remove syspath
Remove unsafe from consts clippy lints
Fix formatting
Merge new_without_default_derive into new_without_default
Only print out question_mark lint when it actually triggered
Add failing test
Reinserted commata
Recomend `.as_ref()?` in certain situations
Deduplicate some code?
````
r? @oli-obk or anyone else
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Changes:
````
UI test cleanup: Extract iter_skip_next from methods.rs
Update test output after rebase
Remove false negatives from known problems
Implement use_self for tuple structs
Document known problems
rustup https://github.com/rust-lang/rust/pull/56225/
Remove unnecessary `use` statements after `cargo fix`
Apply cargo fix --edition-idioms fixes
Use match ergonomics for booleans lint
Use match ergonomics for block_in_if_condition lint
Use match ergonomics for bit_mask lint
Use match ergonomics for attrs lint
Use match ergonomics for assign_ops lint
Use match ergonomics for artithmetic lint
Use match ergonomics for approx_const lint
Remove crate:: prefixes from crate paths
Support array indexing expressions in unused write to a constant
Mark writes to constants as side-effect-less
Update README local run command to remove syspath
Remove unsafe from consts clippy lints
Fix formatting
Merge new_without_default_derive into new_without_default
Only print out question_mark lint when it actually triggered
Add failing test
Reinserted commata
Recomend `.as_ref()?` in certain situations
Deduplicate some code?
````
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Improve error recovery for some built-in macros
Fixes https://github.com/rust-lang/rust/issues/55897
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Make std::cmp::Ord documentation specify what it means to agree with ParitalEq
Resolves #57157
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Suggest `.as_ref()` when appropriate for `Option` and `Result`
Fix #55198.
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Mention ToString in std::fmt docs
I believe this should be added because `x.to_string()` is preferred over `format!("{}", x)` as the recommended way to convert a value to a string. `std::fmt` and the `format` macro is where people look for documentation about this, and thus we should include references to this preferred functions there.
Resolves #55065
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resolve: Fix one more ICE in import validation
So if you have an unresolved import
```rust
mod m {
use foo::bar;
}
```
error recovery will insert a special item with `Def::Err` definition into module `m`, so other things depending on `bar` won't produce extra errors.
The issue was that erroneous `bar` was overwriting legitimate `bar`s coming from globs, e.g.
```rust
mod m {
use baz::*; // imports real existing `bar`
use foo::bar;
}
```
causing some unwanted diagnostics talking about "unresolved items", and producing inconsistent resolutions like https://github.com/rust-lang/rust/issues/57015.
This PR stops overwriting real successful resolutions with `Def::Err`s.
Fixes https://github.com/rust-lang/rust/issues/57015
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Add a note describing the type of the non-Copy moved variable
Closes #56654
r?@davidtwco
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describe index with _
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Implement RFC 2338, "Type alias enum variants"
This PR implements [RFC 2338](https://github.com/rust-lang/rfcs/pull/2338), allowing one to write code like the following.
```rust
#![feature(type_alias_enum_variants)]
enum Foo {
Bar(i32),
Baz { i: i32 },
}
type Alias = Foo;
fn main() {
let t = Alias::Bar(0);
let t = Alias::Baz { i: 0 };
match t {
Alias::Bar(_i) => {}
Alias::Baz { i: _i } => {}
}
}
```
Since `Self` can be considered a type alias in this context, it also enables using `Self::Variant` as both a constructor and pattern.
Fixes issues #56199 and #56611.
N.B., after discussing the syntax for type arguments on enum variants with @petrochenkov and @eddyb (there are also a few comments on the [tracking issue](https://github.com/rust-lang/rust/issues/49683)), the consensus seems to be treat the syntax as follows, which ought to be backwards-compatible.
```rust
Option::<u8>::None; // OK
Option::None::<u8>; // OK, but lint in near future (hard error next edition?)
Alias::<u8>::None; // OK
Alias::None::<u8>; // Error
```
I do not know if this will need an FCP, but let's start one if so.
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`instantiate_value_path`.
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`libproc_macro/bridge/rpc.rs`.
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