Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/ide-diagnostics/src/handlers/mutable_ref.rs')
| -rw-r--r-- | crates/ide-diagnostics/src/handlers/mutable_ref.rs | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/crates/ide-diagnostics/src/handlers/mutable_ref.rs b/crates/ide-diagnostics/src/handlers/mutable_ref.rs index 14734564b7..b56619612d 100644 --- a/crates/ide-diagnostics/src/handlers/mutable_ref.rs +++ b/crates/ide-diagnostics/src/handlers/mutable_ref.rs @@ -10,7 +10,7 @@ pub(crate) fn mutable_ref_binding( Diagnostic::new_with_syntax_node_ptr( ctx, DiagnosticCode::RustcHardError("E0658"), - "`mut` bindings cannot also be `ref` by default in 2024 edition", + "bindings cannot be both mutable and by-reference by default in 2024 edition. add experimental #![feature(mut_ref)] for this functionality", d.pat.map(Into::into), ) .stable() @@ -26,12 +26,15 @@ mod tests { r#" //- minicore: option #![feature(ref_pat_eat_one_layer_2024)] +struct TestStruct { + val: i32 +} fn main() { - let opt_ref = &Some(42); + let opt_ref = &Some(TestStruct {val: 1}); if let Some(mut x) = opt_ref { - //^^^^^ error: `mut` bindings cannot also be `ref` by default in 2024 edition - x = &5; + //^^^^^ error: bindings cannot be both mutable and by-reference by default in 2024 edition. add experimental #![feature(mut_ref)] for this functionality + x = &TestStruct{val: 5}; } } "#, @@ -45,11 +48,14 @@ fn main() { //- minicore: option #![feature(ref_pat_eat_one_layer_2024)] #![feature(mut_ref)] +struct TestStruct { + val: i32 +} fn main() { - let opt_ref = &Some(42); + let opt_ref = &Some(TestStruct{val: 1}); if let Some(mut x) = opt_ref { - x = &5; + x = &TestStruct{val: 5}; } } "#, |