reword default binding mode notes
(cherry picked from commit a5cc4cbe64)
This commit is contained in:
dianne
parent
215bfdd07d
commit
ee0838fcab
3 changed files with 55 additions and 61 deletions
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@ -1119,15 +1119,9 @@ impl Subdiagnostic for Rust2024IncompatiblePatSugg {
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for (span, def_br_mutbl) in self.default_mode_labels.into_iter().rev() {
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// Don't point to a macro call site.
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if !span.from_expansion() {
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let dbm_str = match def_br_mutbl {
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ty::Mutability::Not => "ref",
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ty::Mutability::Mut => "ref mut",
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};
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let note_msg = format!(
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"the default binding mode changed to `{dbm_str}` because this has type `{}_`",
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def_br_mutbl.ref_prefix_str()
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);
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let label_msg = format!("the default binding mode is `{dbm_str}`, introduced here");
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let note_msg = "matching on a reference type with a non-reference pattern changes the default binding mode";
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let label_msg =
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format!("this matches on type `{}_`", def_br_mutbl.ref_prefix_str());
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let mut label = MultiSpan::from(span);
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label.push_span_label(span, label_msg);
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diag.span_note(label, note_msg);
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@ -6,11 +6,11 @@ LL | let Foo(mut x) = &Foo(0);
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:25:9
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LL | let Foo(mut x) = &Foo(0);
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| ^^^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^^^ this matches on type `&_`
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note: the lint level is defined here
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--> $DIR/migration_lint.rs:7:9
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@ -29,11 +29,11 @@ LL | let Foo(mut x) = &mut Foo(0);
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref mut` because this has type `&mut _`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:30:9
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LL | let Foo(mut x) = &mut Foo(0);
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| ^^^^^^^^^^ the default binding mode is `ref mut`, introduced here
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| ^^^^^^^^^^ this matches on type `&mut _`
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help: make the implied reference pattern explicit
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LL | let &mut Foo(mut x) = &mut Foo(0);
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@ -47,11 +47,11 @@ LL | let Foo(ref x) = &Foo(0);
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:35:9
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LL | let Foo(ref x) = &Foo(0);
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| ^^^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^^^ this matches on type `&_`
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help: make the implied reference pattern explicit
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LL | let &Foo(ref x) = &Foo(0);
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@ -65,11 +65,11 @@ LL | let Foo(ref x) = &mut Foo(0);
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref mut` because this has type `&mut _`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:40:9
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LL | let Foo(ref x) = &mut Foo(0);
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| ^^^^^^^^^^ the default binding mode is `ref mut`, introduced here
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| ^^^^^^^^^^ this matches on type `&mut _`
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help: make the implied reference pattern explicit
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LL | let &mut Foo(ref x) = &mut Foo(0);
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@ -83,11 +83,11 @@ LL | let Foo(&x) = &Foo(&0);
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:57:9
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LL | let Foo(&x) = &Foo(&0);
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| ^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^ this matches on type `&_`
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help: make the implied reference pattern explicit
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LL | let &Foo(&x) = &Foo(&0);
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@ -101,11 +101,11 @@ LL | let Foo(&mut x) = &Foo(&mut 0);
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:62:9
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LL | let Foo(&mut x) = &Foo(&mut 0);
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| ^^^^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^^^^ this matches on type `&_`
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help: make the implied reference pattern explicit
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LL | let &Foo(&mut x) = &Foo(&mut 0);
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@ -119,11 +119,11 @@ LL | let Foo(&x) = &mut Foo(&0);
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref mut` because this has type `&mut _`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:67:9
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LL | let Foo(&x) = &mut Foo(&0);
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| ^^^^^^^ the default binding mode is `ref mut`, introduced here
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| ^^^^^^^ this matches on type `&mut _`
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help: make the implied reference pattern explicit
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LL | let &mut Foo(&x) = &mut Foo(&0);
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@ -137,11 +137,11 @@ LL | let Foo(&mut x) = &mut Foo(&mut 0);
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref mut` because this has type `&mut _`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:72:9
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LL | let Foo(&mut x) = &mut Foo(&mut 0);
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| ^^^^^^^^^^^ the default binding mode is `ref mut`, introduced here
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| ^^^^^^^^^^^ this matches on type `&mut _`
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help: make the implied reference pattern explicit
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LL | let &mut Foo(&mut x) = &mut Foo(&mut 0);
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@ -155,11 +155,11 @@ LL | if let Some(&x) = &&&&&Some(&0u8) {
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:81:12
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LL | if let Some(&x) = &&&&&Some(&0u8) {
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| ^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^ this matches on type `&_`
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help: make the implied reference patterns explicit
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LL | if let &&&&&Some(&x) = &&&&&Some(&0u8) {
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@ -173,11 +173,11 @@ LL | if let Some(&mut x) = &&&&&Some(&mut 0u8) {
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:87:12
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LL | if let Some(&mut x) = &&&&&Some(&mut 0u8) {
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| ^^^^^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^^^^^ this matches on type `&_`
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help: make the implied reference patterns explicit
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LL | if let &&&&&Some(&mut x) = &&&&&Some(&mut 0u8) {
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@ -191,11 +191,11 @@ LL | if let Some(&x) = &&&&&mut Some(&0u8) {
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:93:12
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LL | if let Some(&x) = &&&&&mut Some(&0u8) {
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| ^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^ this matches on type `&_`
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help: make the implied reference patterns explicit
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LL | if let &&&&&mut Some(&x) = &&&&&mut Some(&0u8) {
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@ -209,11 +209,11 @@ LL | if let Some(&mut Some(Some(x))) = &mut Some(&mut Some(&mut Some(0u8)))
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref mut` because this has type `&mut _`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:99:12
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LL | if let Some(&mut Some(Some(x))) = &mut Some(&mut Some(&mut Some(0u8))) {
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| ^^^^^^^^^^^^^^^^^^^^^^^^ the default binding mode is `ref mut`, introduced here
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| ^^^^^^^^^^^^^^^^^^^^^^^^ this matches on type `&mut _`
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help: make the implied reference patterns and variable binding mode explicit
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LL | if let &mut Some(&mut Some(&mut Some(ref mut x))) = &mut Some(&mut Some(&mut Some(0u8))) {
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@ -227,11 +227,11 @@ LL | let Struct { a, mut b, c } = &Struct { a: 0, b: 0, c: 0 };
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:111:9
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LL | let Struct { a, mut b, c } = &Struct { a: 0, b: 0, c: 0 };
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| ^^^^^^^^^^^^^^^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^^^^^^^^^^^^^^^ this matches on type `&_`
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help: make the implied reference pattern and variable binding modes explicit
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LL | let &Struct { ref a, mut b, ref c } = &Struct { a: 0, b: 0, c: 0 };
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@ -247,11 +247,11 @@ LL | let Struct { a: &a, b, ref c } = &Struct { a: &0, b: &0, c: &0 };
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:117:9
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LL | let Struct { a: &a, b, ref c } = &Struct { a: &0, b: &0, c: &0 };
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^ this matches on type `&_`
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help: make the implied reference pattern and variable binding mode explicit
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LL | let &Struct { a: &a, ref b, ref c } = &Struct { a: &0, b: &0, c: &0 };
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@ -267,11 +267,11 @@ LL | if let Struct { a: &Some(a), b: Some(&b), c: Some(c) } =
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:124:12
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LL | if let Struct { a: &Some(a), b: Some(&b), c: Some(c) } =
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this matches on type `&_`
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help: make the implied reference patterns and variable binding mode explicit
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LL | if let &Struct { a: &Some(a), b: &Some(&b), c: &Some(ref c) } =
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@ -286,11 +286,11 @@ LL | (Some(mut x), migration_lint_macros::mixed_edition_pat!(y)) => {
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| binding modifier not allowed under `ref` default binding mode
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:137:9
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LL | (Some(mut x), migration_lint_macros::mixed_edition_pat!(y)) => {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this matches on type `&_`
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= note: this error originates in the macro `migration_lint_macros::mixed_edition_pat` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: make the implied reference pattern explicit
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@ -307,16 +307,16 @@ LL | let [&mut [ref a]] = &mut [&mut &[0]];
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:145:15
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LL | let [&mut [ref a]] = &mut [&mut &[0]];
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| ^^^^^^^ the default binding mode is `ref`, introduced here
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note: the default binding mode changed to `ref mut` because this has type `&mut _`
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| ^^^^^^^ this matches on type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:145:9
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LL | let [&mut [ref a]] = &mut [&mut &[0]];
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| ^^^^^^^^^^^^^^ the default binding mode is `ref mut`, introduced here
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| ^^^^^^^^^^^^^^ this matches on type `&mut _`
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help: make the implied reference patterns explicit
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LL | let &mut [&mut &[ref a]] = &mut [&mut &[0]];
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@ -330,11 +330,11 @@ LL | let [&(_)] = &[&0];
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= warning: this changes meaning in Rust 2024
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/migration_lint.rs:150:9
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LL | let [&(_)] = &[&0];
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| ^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^ this matches on type `&_`
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help: make the implied reference pattern explicit
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LL | let &[&(_)] = &[&0];
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@ -106,11 +106,11 @@ LL | test_pat_on_type![(&x,): &(&T,)];
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| ^ reference pattern not allowed under `ref` default binding mode
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/min_match_ergonomics_fail.rs:24:19
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LL | test_pat_on_type![(&x,): &(&T,)];
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| ^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^ this matches on type `&_`
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help: make the implied reference pattern explicit
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LL | test_pat_on_type![&(&x,): &(&T,)];
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@ -123,11 +123,11 @@ LL | test_pat_on_type![(&mut x,): &(&mut T,)];
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| ^^^^ reference pattern not allowed under `ref` default binding mode
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/min_match_ergonomics_fail.rs:27:19
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LL | test_pat_on_type![(&mut x,): &(&mut T,)];
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| ^^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^^ this matches on type `&_`
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help: make the implied reference pattern explicit
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LL | test_pat_on_type![&(&mut x,): &(&mut T,)];
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@ -140,11 +140,11 @@ LL | test_pat_on_type![Foo { f: &(x,) }: &Foo];
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| ^ reference pattern not allowed under `ref` default binding mode
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
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note: matching on a reference type with a non-reference pattern changes the default binding mode
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--> $DIR/min_match_ergonomics_fail.rs:31:19
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LL | test_pat_on_type![Foo { f: &(x,) }: &Foo];
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| ^^^^^^^^^^^^^^^^ the default binding mode is `ref`, introduced here
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| ^^^^^^^^^^^^^^^^ this matches on type `&_`
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help: make the implied reference pattern explicit
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LL | test_pat_on_type![&Foo { f: &(x,) }: &Foo];
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@ -157,11 +157,11 @@ LL | test_pat_on_type![(mut x,): &(T,)];
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| ^^^ binding modifier not allowed under `ref` default binding mode
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= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
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note: the default binding mode changed to `ref` because this has type `&_`
|
||||
note: matching on a reference type with a non-reference pattern changes the default binding mode
|
||||
--> $DIR/min_match_ergonomics_fail.rs:32:19
|
||||
|
|
||||
LL | test_pat_on_type![(mut x,): &(T,)];
|
||||
| ^^^^^^^^ the default binding mode is `ref`, introduced here
|
||||
| ^^^^^^^^ this matches on type `&_`
|
||||
help: make the implied reference pattern explicit
|
||||
|
|
||||
LL | test_pat_on_type![&(mut x,): &(T,)];
|
||||
|
|
@ -174,11 +174,11 @@ LL | test_pat_on_type![(ref x,): &(T,)];
|
|||
| ^^^ binding modifier not allowed under `ref` default binding mode
|
||||
|
|
||||
= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
|
||||
note: the default binding mode changed to `ref` because this has type `&_`
|
||||
note: matching on a reference type with a non-reference pattern changes the default binding mode
|
||||
--> $DIR/min_match_ergonomics_fail.rs:33:19
|
||||
|
|
||||
LL | test_pat_on_type![(ref x,): &(T,)];
|
||||
| ^^^^^^^^ the default binding mode is `ref`, introduced here
|
||||
| ^^^^^^^^ this matches on type `&_`
|
||||
help: make the implied reference pattern explicit
|
||||
|
|
||||
LL | test_pat_on_type![&(ref x,): &(T,)];
|
||||
|
|
@ -191,11 +191,11 @@ LL | test_pat_on_type![(ref mut x,): &mut (T,)];
|
|||
| ^^^^^^^ binding modifier not allowed under `ref mut` default binding mode
|
||||
|
|
||||
= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
|
||||
note: the default binding mode changed to `ref mut` because this has type `&mut _`
|
||||
note: matching on a reference type with a non-reference pattern changes the default binding mode
|
||||
--> $DIR/min_match_ergonomics_fail.rs:34:19
|
||||
|
|
||||
LL | test_pat_on_type![(ref mut x,): &mut (T,)];
|
||||
| ^^^^^^^^^^^^ the default binding mode is `ref mut`, introduced here
|
||||
| ^^^^^^^^^^^^ this matches on type `&mut _`
|
||||
help: make the implied reference pattern explicit
|
||||
|
|
||||
LL | test_pat_on_type![&mut (ref mut x,): &mut (T,)];
|
||||
|
|
@ -208,11 +208,11 @@ LL | (&x,) => x,
|
|||
| ^ reference pattern not allowed under `ref` default binding mode
|
||||
|
|
||||
= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/match-ergonomics.html>
|
||||
note: the default binding mode changed to `ref` because this has type `&_`
|
||||
note: matching on a reference type with a non-reference pattern changes the default binding mode
|
||||
--> $DIR/min_match_ergonomics_fail.rs:43:9
|
||||
|
|
||||
LL | (&x,) => x,
|
||||
| ^^^^^ the default binding mode is `ref`, introduced here
|
||||
| ^^^^^ this matches on type `&_`
|
||||
help: make the implied reference pattern explicit
|
||||
|
|
||||
LL | &(&x,) => x,
|
||||
|
|
|
|||
Loading…
Add table
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Reference in a new issue