struct Foo { first: bool, second: Option<[usize; 4]> } fn struct_with_a_nested_enum_and_vector() { match (Foo { first: true, second: None }) { //~^ ERROR non-exhaustive patterns: `Foo { first: false, second: Some([_, _, _, _]) }` not covered Foo { first: true, second: None } => (), Foo { first: true, second: Some(_) } => (), Foo { first: false, second: None } => (), Foo { first: false, second: Some([1, 2, 3, 4]) } => () } } enum Color { Red, Green, CustomRGBA { a: bool, r: u8, g: u8, b: u8 } } fn enum_with_single_missing_variant() { match Color::Red { //~^ ERROR non-exhaustive patterns: `Color::Red` not covered Color::CustomRGBA { .. } => (), Color::Green => () } } enum Direction { North, East, South, West } fn enum_with_multiple_missing_variants() { match Direction::North { //~^ ERROR non-exhaustive patterns: `Direction::East`, `Direction::South` and `Direction::West` not covered Direction::North => () } } enum ExcessiveEnum { First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Tenth, Eleventh, Twelfth } fn enum_with_excessive_missing_variants() { match ExcessiveEnum::First { //~^ ERROR `ExcessiveEnum::Second`, `ExcessiveEnum::Third`, `ExcessiveEnum::Fourth` and 8 more not covered ExcessiveEnum::First => () } } fn enum_struct_variant() { match Color::Red { //~^ ERROR non-exhaustive patterns: `Color::CustomRGBA { a: true, .. }` not covered Color::Red => (), Color::Green => (), Color::CustomRGBA { a: false, r: _, g: _, b: 0 } => (), Color::CustomRGBA { a: false, r: _, g: _, b: _ } => () } } enum Enum { First, Second(bool) } fn vectors_with_nested_enums() { let x: &'static [Enum] = &[Enum::First, Enum::Second(false)]; match *x { //~^ ERROR non-exhaustive patterns: `[Enum::Second(true), Enum::Second(false)]` not covered [] => (), [_] => (), [Enum::First, _] => (), [Enum::Second(true), Enum::First] => (), [Enum::Second(true), Enum::Second(true)] => (), [Enum::Second(false), _] => (), [_, _, ref tail @ .., _] => () } } fn missing_nil() { match ((), false) { //~^ ERROR non-exhaustive patterns: `((), false)` not covered ((), true) => () } } fn main() {}