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Go over all structured parser suggestions and make them verbose style.
When suggesting to add or remove delimiters, turn them into multiple suggestion parts.
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Change E0369 to give note informations for foreign items.
Change E0369 to give note informations for foreign items.
Make it easy for developers to understand why the binop cannot be applied.
fixes #125631
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Mark assoc tys live only if the corresponding trait is live
r? ````@pnkfelix````
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Make it easy for developers to understand why the binop cannot be applied.
fixes #125631
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This section of code depends on `rustc_apfloat` rather than our internal
types, so this is one potential ICE that we should be able to melt now.
This also fixes some missing range and match handling in `rustc_middle`.
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Jules-Bertholet:match-ergonomics-2024-align-with-rfc, r=Nadrieril
Match ergonomics 2024: align implementation with RFC
- Remove eat-two-layers (`ref_pat_everywhere`)
- Consolidate `mut_preserve_binding_mode_2024` into `ref_pat_eat_one_layer_2024`
- `&mut` no longer peels off `&`
- Apply "no `ref mut` behind `&`" rule on all editions with `ref_pat_eat_one_layer_2024`
- Require `mut_ref` feature gate for all mutable by-reference bindings
r? ``@Nadrieril``
cc https://github.com/rust-lang/rust/issues/123076
``@rustbot`` label A-edition-2024 A-patterns
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Turn remaining non-structural-const-in-pattern lints into hard errors
This completes the implementation of https://github.com/rust-lang/rust/issues/120362 by turning our remaining future-compat lints into hard errors: indirect_structural_match and pointer_structural_match.
They have been future-compat lints for a while (indirect_structural_match for many years, pointer_structural_match since Rust 1.75 (released Dec 28, 2023)), and have shown up in dependency breakage reports since Rust 1.78 (just released on May 2, 2024). I don't expect a lot of code will still depend on them, but we will of course do a crater run.
A lot of cleanup is now possible in const_to_pat, but that is deferred to a later PR.
Fixes https://github.com/rust-lang/rust/issues/70861
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- Move super-fast-paren-parsing test into ui/parser
- Move stmt_expr_attrs test into ui/feature-gates
- Move macro tests into ui/macros
- Move global_asm tests into ui/asm
- Move env tests into ui/process
- Move xcrate tests into ui/cross-crate
- Move unop tests into ui/unop
- Move backtrace tests into ui/backtrace
- Move check-static tests into ui/statics
- Move expr tests into ui/expr
- Move optimization fuel tests into ui/fuel
- Move ffi attribute tests into ui/ffi-attrs
- Move suggestion tests into ui/suggestions
- Move main tests into ui/fn-main
- Move lint tests into ui/lint
- Move repr tests into ui/repr
- Move intrinsics tests into ui/intrinsics
- Move tool lint tests into ui/tool-attributes
- Move return tests into ui/return
- Move pattern tests into ui/patttern
- Move range tests into ui/range
- Move foreign-fn tests into ui/foreign
- Move orphan-check tests into ui/coherence
- Move inference tests into ui/inference
- Reduce ROOT_ENTRY_LIMIT
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Fixes #125058
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Unfortunately, we can't always offer a machine-applicable suggestion when there are subpatterns from macro expansion.
Co-Authored-By: Guillaume Boisseau <Nadrieril@users.noreply.github.com>
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Suggest ref mut for pattern matching assignment
Fixes #118596
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```
error[E0382]: use of moved value: `t`
--> $DIR/use_of_moved_value_copy_suggestions.rs:7:9
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LL | fn duplicate_t<T>(t: T) -> (T, T) {
| - move occurs because `t` has type `T`, which does not implement the `Copy` trait
...
LL | (t, t)
| - ^ value used here after move
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| value moved here
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help: if `T` implemented `Clone`, you could clone the value
--> $DIR/use_of_moved_value_copy_suggestions.rs:4:16
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LL | fn duplicate_t<T>(t: T) -> (T, T) {
| ^ consider constraining this type parameter with `Clone`
...
LL | (t, t)
| - you could clone this value
help: consider restricting type parameter `T`
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LL | fn duplicate_t<T: Copy>(t: T) -> (T, T) {
| ++++++
```
The `help` is new. On ADTs, we also extend the output with span labels:
```
error[E0507]: cannot move out of static item `FOO`
--> $DIR/issue-17718-static-move.rs:6:14
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LL | let _a = FOO;
| ^^^ move occurs because `FOO` has type `Foo`, which does not implement the `Copy` trait
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note: if `Foo` implemented `Clone`, you could clone the value
--> $DIR/issue-17718-static-move.rs:1:1
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LL | struct Foo;
| ^^^^^^^^^^ consider implementing `Clone` for this type
...
LL | let _a = FOO;
| --- you could clone this value
help: consider borrowing here
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LL | let _a = &FOO;
| +
```
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This handles using deref patterns to choose the correct match arm. This
does not handle bindings or guards.
Co-authored-by: Deadbeef <ent3rm4n@gmail.com>
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The lint is unstable, and the lint group `rust_2024_compatibility` must keep working on stable
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Rustfix remains TODO
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Stop using `box PAT` syntax for deref patterns, as it's misleading and
also causes their semantics being tangled up.
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Co-authored-by: Deadbeef <ent3rm4n@gmail.com>
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