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Gate implicit mutable by-reference bindings behind mut ref

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This commit is contained in:
Jules Bertholet 2024-05-15 16:55:54 -04:00
parent eb91f3b051
commit 0746577fa2
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GPG key ID: 32034DAFC38C1BFC
11 changed files with 61 additions and 65 deletions
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14
tests/ui/pattern/feature-gate-mut_preserve_binding_mode_2024.rs
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@ -1,14 +0,0 @@
//@ edition: 2024
//@ compile-flags: -Zunstable-options
struct Foo(u8);
fn main() {
let Foo(mut a) = &Foo(0);
a = &42;
//~^ ERROR: mismatched types
let Foo(mut a) = &mut Foo(0);
a = &mut 42;
//~^ ERROR: mismatched types
}

31
tests/ui/pattern/feature-gate-mut_preserve_binding_mode_2024.stderr
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@ -1,31 +0,0 @@
error[E0308]: mismatched types
--> $DIR/feature-gate-mut_preserve_binding_mode_2024.rs:8:9
|
LL | let Foo(mut a) = &Foo(0);
| ----- expected due to the type of this binding
LL | a = &42;
| ^^^ expected `u8`, found `&{integer}`
|
help: consider removing the borrow
|
LL - a = &42;
LL + a = 42;
|
error[E0308]: mismatched types
--> $DIR/feature-gate-mut_preserve_binding_mode_2024.rs:12:9
|
LL | let Foo(mut a) = &mut Foo(0);
| ----- expected due to the type of this binding
LL | a = &mut 42;
| ^^^^^^^ expected `u8`, found `&mut {integer}`
|
help: consider removing the borrow
|
LL - a = &mut 42;
LL + a = 42;
|
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0308`.

2
tests/ui/pattern/match_ergonomics_2024.fixed
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@ -2,7 +2,7 @@
//@ run-rustfix
//@ rustfix-only-machine-applicable
//@ aux-build:match_ergonomics_2024_macros.rs
#![feature(mut_preserve_binding_mode_2024, ref_pat_eat_one_layer_2024)]
#![feature(mut_ref, ref_pat_eat_one_layer_2024)]
#![allow(incomplete_features, unused)]
#![deny(rust_2024_incompatible_pat)]

2
tests/ui/pattern/match_ergonomics_2024.rs
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@ -2,7 +2,7 @@
//@ run-rustfix
//@ rustfix-only-machine-applicable
//@ aux-build:match_ergonomics_2024_macros.rs
#![feature(mut_preserve_binding_mode_2024, ref_pat_eat_one_layer_2024)]
#![feature(mut_ref, ref_pat_eat_one_layer_2024)]
#![allow(incomplete_features, unused)]
#![deny(rust_2024_incompatible_pat)]

2
tests/ui/pattern/mut_preserve_binding_mode_2021.rs
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@ -1,6 +1,6 @@
//@ edition: 2021
//@ compile-flags: -Zunstable-options
#![feature(mut_preserve_binding_mode_2024)]
#![feature(ref_pat_eat_one_layer_2024)]
#![allow(incomplete_features)]
struct Foo(u8);

2
tests/ui/pattern/mut_preserve_binding_mode_2024.rs
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@ -1,7 +1,7 @@
//@ run-pass
//@ edition: 2024
//@ compile-flags: -Zunstable-options
#![feature(mut_preserve_binding_mode_2024)]
#![feature(mut_ref, ref_pat_eat_one_layer_2024)]
#![allow(incomplete_features, unused)]
struct Foo(u8);