diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/ui/pattern/usefulness/consts-opaque.rs | 18 | ||||
| -rw-r--r-- | tests/ui/pattern/usefulness/consts-opaque.stderr | 75 |
2 files changed, 53 insertions, 40 deletions
diff --git a/tests/ui/pattern/usefulness/consts-opaque.rs b/tests/ui/pattern/usefulness/consts-opaque.rs index ca4fcd85bb6..c10c6205a08 100644 --- a/tests/ui/pattern/usefulness/consts-opaque.rs +++ b/tests/ui/pattern/usefulness/consts-opaque.rs @@ -20,11 +20,12 @@ const BAR: Bar = Bar; #[derive(PartialEq)] enum Baz { Baz1, - Baz2 + Baz2, } impl Eq for Baz {} const BAZ: Baz = Baz::Baz1; +#[rustfmt::skip] fn main() { match FOO { FOO => {} @@ -124,8 +125,16 @@ fn main() { match WRAPQUUX { Wrap(_) => {} - WRAPQUUX => {} // detected unreachable because we do inspect the `Wrap` layer - //~^ ERROR unreachable pattern + WRAPQUUX => {} + } + + match WRAPQUUX { + Wrap(_) => {} + } + + match WRAPQUUX { + //~^ ERROR: non-exhaustive patterns: `Wrap(_)` not covered + WRAPQUUX => {} } #[derive(PartialEq, Eq)] @@ -138,8 +147,7 @@ fn main() { match WHOKNOWSQUUX { WHOKNOWSQUUX => {} WhoKnows::Yay(_) => {} - WHOKNOWSQUUX => {} // detected unreachable because we do inspect the `WhoKnows` layer - //~^ ERROR unreachable pattern + WHOKNOWSQUUX => {} WhoKnows::Nope => {} } } diff --git a/tests/ui/pattern/usefulness/consts-opaque.stderr b/tests/ui/pattern/usefulness/consts-opaque.stderr index 3f0b4a9f26a..e01b06ccc82 100644 --- a/tests/ui/pattern/usefulness/consts-opaque.stderr +++ b/tests/ui/pattern/usefulness/consts-opaque.stderr @@ -1,5 +1,5 @@ error: to use a constant of type `Foo` in a pattern, `Foo` must be annotated with `#[derive(PartialEq, Eq)]` - --> $DIR/consts-opaque.rs:30:9 + --> $DIR/consts-opaque.rs:31:9 | LL | FOO => {} | ^^^ @@ -8,7 +8,7 @@ LL | FOO => {} = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details error: to use a constant of type `Foo` in a pattern, `Foo` must be annotated with `#[derive(PartialEq, Eq)]` - --> $DIR/consts-opaque.rs:37:9 + --> $DIR/consts-opaque.rs:38:9 | LL | FOO_REF => {} | ^^^^^^^ @@ -17,7 +17,7 @@ LL | FOO_REF => {} = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details warning: to use a constant of type `Foo` in a pattern, `Foo` must be annotated with `#[derive(PartialEq, Eq)]` - --> $DIR/consts-opaque.rs:45:9 + --> $DIR/consts-opaque.rs:46:9 | LL | FOO_REF_REF => {} | ^^^^^^^^^^^ @@ -29,7 +29,7 @@ LL | FOO_REF_REF => {} = note: `#[warn(indirect_structural_match)]` on by default error: to use a constant of type `Bar` in a pattern, `Bar` must be annotated with `#[derive(PartialEq, Eq)]` - --> $DIR/consts-opaque.rs:53:9 + --> $DIR/consts-opaque.rs:54:9 | LL | BAR => {} // should not be emitting unreachable warning | ^^^ @@ -38,7 +38,7 @@ LL | BAR => {} // should not be emitting unreachable warning = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details error: to use a constant of type `Bar` in a pattern, `Bar` must be annotated with `#[derive(PartialEq, Eq)]` - --> $DIR/consts-opaque.rs:61:9 + --> $DIR/consts-opaque.rs:62:9 | LL | BAR => {} | ^^^ @@ -47,7 +47,7 @@ LL | BAR => {} = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details error: to use a constant of type `Bar` in a pattern, `Bar` must be annotated with `#[derive(PartialEq, Eq)]` - --> $DIR/consts-opaque.rs:70:9 + --> $DIR/consts-opaque.rs:71:9 | LL | BAR => {} | ^^^ @@ -56,7 +56,7 @@ LL | BAR => {} = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details error: to use a constant of type `Bar` in a pattern, `Bar` must be annotated with `#[derive(PartialEq, Eq)]` - --> $DIR/consts-opaque.rs:72:9 + --> $DIR/consts-opaque.rs:73:9 | LL | BAR => {} // should not be emitting unreachable warning | ^^^ @@ -65,7 +65,7 @@ LL | BAR => {} // should not be emitting unreachable warning = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details error: to use a constant of type `Baz` in a pattern, `Baz` must be annotated with `#[derive(PartialEq, Eq)]` - --> $DIR/consts-opaque.rs:80:9 + --> $DIR/consts-opaque.rs:81:9 | LL | BAZ => {} | ^^^ @@ -74,7 +74,7 @@ LL | BAZ => {} = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details error: to use a constant of type `Baz` in a pattern, `Baz` must be annotated with `#[derive(PartialEq, Eq)]` - --> $DIR/consts-opaque.rs:90:9 + --> $DIR/consts-opaque.rs:91:9 | LL | BAZ => {} | ^^^ @@ -83,7 +83,7 @@ LL | BAZ => {} = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details error: to use a constant of type `Baz` in a pattern, `Baz` must be annotated with `#[derive(PartialEq, Eq)]` - --> $DIR/consts-opaque.rs:97:9 + --> $DIR/consts-opaque.rs:98:9 | LL | BAZ => {} | ^^^ @@ -92,7 +92,7 @@ LL | BAZ => {} = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details error: unreachable pattern - --> $DIR/consts-opaque.rs:32:9 + --> $DIR/consts-opaque.rs:33:9 | LL | FOO => {} | --- matches any value @@ -107,7 +107,7 @@ LL | #![deny(unreachable_patterns)] | ^^^^^^^^^^^^^^^^^^^^ error: unreachable pattern - --> $DIR/consts-opaque.rs:39:9 + --> $DIR/consts-opaque.rs:40:9 | LL | FOO_REF => {} | ------- matches any value @@ -116,7 +116,7 @@ LL | Foo(_) => {} // should not be emitting unreachable warning | ^^^^^^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:53:9 + --> $DIR/consts-opaque.rs:54:9 | LL | Bar => {} | --- matches any value @@ -124,7 +124,7 @@ LL | BAR => {} // should not be emitting unreachable warning | ^^^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:56:9 + --> $DIR/consts-opaque.rs:57:9 | LL | Bar => {} | --- matches any value @@ -133,7 +133,7 @@ LL | _ => {} | ^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:63:9 + --> $DIR/consts-opaque.rs:64:9 | LL | BAR => {} | --- matches any value @@ -142,7 +142,7 @@ LL | Bar => {} // should not be emitting unreachable warning | ^^^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:65:9 + --> $DIR/consts-opaque.rs:66:9 | LL | BAR => {} | --- matches any value @@ -151,7 +151,7 @@ LL | _ => {} | ^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:72:9 + --> $DIR/consts-opaque.rs:73:9 | LL | BAR => {} | --- matches any value @@ -160,7 +160,7 @@ LL | BAR => {} // should not be emitting unreachable warning | ^^^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:75:9 + --> $DIR/consts-opaque.rs:76:9 | LL | BAR => {} | --- matches any value @@ -169,7 +169,7 @@ LL | _ => {} // should not be emitting unreachable warning | ^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:82:9 + --> $DIR/consts-opaque.rs:83:9 | LL | BAZ => {} | --- matches any value @@ -178,7 +178,7 @@ LL | Baz::Baz1 => {} // should not be emitting unreachable warning | ^^^^^^^^^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:84:9 + --> $DIR/consts-opaque.rs:85:9 | LL | BAZ => {} | --- matches any value @@ -187,7 +187,7 @@ LL | _ => {} | ^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:92:9 + --> $DIR/consts-opaque.rs:93:9 | LL | BAZ => {} | --- matches any value @@ -196,7 +196,7 @@ LL | _ => {} | ^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:99:9 + --> $DIR/consts-opaque.rs:100:9 | LL | BAZ => {} | --- matches any value @@ -205,7 +205,7 @@ LL | Baz::Baz2 => {} // should not be emitting unreachable warning | ^^^^^^^^^ unreachable pattern error: unreachable pattern - --> $DIR/consts-opaque.rs:101:9 + --> $DIR/consts-opaque.rs:102:9 | LL | BAZ => {} | --- matches any value @@ -213,19 +213,24 @@ LL | BAZ => {} LL | _ => {} // should not be emitting unreachable warning | ^ unreachable pattern -error: unreachable pattern - --> $DIR/consts-opaque.rs:127:9 +error[E0004]: non-exhaustive patterns: `Wrap(_)` not covered + --> $DIR/consts-opaque.rs:135:11 | -LL | Wrap(_) => {} - | ------- matches any value -LL | WRAPQUUX => {} // detected unreachable because we do inspect the `Wrap` layer - | ^^^^^^^^ unreachable pattern - -error: unreachable pattern - --> $DIR/consts-opaque.rs:141:9 +LL | match WRAPQUUX { + | ^^^^^^^^ pattern `Wrap(_)` not covered + | +note: `Wrap<fn(usize, usize) -> usize>` defined here + --> $DIR/consts-opaque.rs:117:12 + | +LL | struct Wrap<T>(T); + | ^^^^ + = note: the matched value is of type `Wrap<fn(usize, usize) -> usize>` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL ~ WRAPQUUX => {}, +LL + Wrap(_) => todo!() | -LL | WHOKNOWSQUUX => {} // detected unreachable because we do inspect the `WhoKnows` layer - | ^^^^^^^^^^^^ -error: aborting due to 24 previous errors; 1 warning emitted +error: aborting due to 23 previous errors; 1 warning emitted +For more information about this error, try `rustc --explain E0004`. |