5c717a6fc2
non-MIR translation is still not supported for these and will happily ICE. This is a [breaking-change] for many uses of slice_patterns.
103 lines
2.8 KiB
Rust
103 lines
2.8 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(advanced_slice_patterns)]
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#![feature(slice_patterns)]
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struct Foo {
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first: bool,
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second: Option<[usize; 4]>
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}
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fn struct_with_a_nested_enum_and_vector() {
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match (Foo { first: true, second: None }) {
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//~^ ERROR non-exhaustive patterns: `Foo { first: false, second: Some([_, _, _, _]) }` not covered
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Foo { first: true, second: None } => (),
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Foo { first: true, second: Some(_) } => (),
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Foo { first: false, second: None } => (),
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Foo { first: false, second: Some([1, 2, 3, 4]) } => ()
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}
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}
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enum Color {
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Red,
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Green,
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CustomRGBA { a: bool, r: u8, g: u8, b: u8 }
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}
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fn enum_with_single_missing_variant() {
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match Color::Red {
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//~^ ERROR non-exhaustive patterns: `Red` not covered
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Color::CustomRGBA { .. } => (),
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Color::Green => ()
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}
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}
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enum Direction {
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North, East, South, West
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}
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fn enum_with_multiple_missing_variants() {
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match Direction::North {
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//~^ ERROR non-exhaustive patterns: `East`, `South` and `West` not covered
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Direction::North => ()
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}
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}
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enum ExcessiveEnum {
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First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Tenth, Eleventh, Twelfth
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}
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fn enum_with_excessive_missing_variants() {
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match ExcessiveEnum::First {
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//~^ ERROR `Second`, `Third`, `Fourth` and 8 more not covered
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ExcessiveEnum::First => ()
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}
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}
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fn enum_struct_variant() {
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match Color::Red {
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//~^ ERROR non-exhaustive patterns: `CustomRGBA { a: true, .. }` not covered
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Color::Red => (),
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Color::Green => (),
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Color::CustomRGBA { a: false, r: _, g: _, b: 0 } => (),
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Color::CustomRGBA { a: false, r: _, g: _, b: _ } => ()
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}
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}
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enum Enum {
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First,
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Second(bool)
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}
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fn vectors_with_nested_enums() {
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let x: &'static [Enum] = &[Enum::First, Enum::Second(false)];
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match *x {
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//~^ ERROR non-exhaustive patterns: `[Second(true), Second(false)]` not covered
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[] => (),
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[_] => (),
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[Enum::First, _] => (),
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[Enum::Second(true), Enum::First] => (),
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[Enum::Second(true), Enum::Second(true)] => (),
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[Enum::Second(false), _] => (),
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[_, _, ref tail.., _] => ()
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}
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}
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fn missing_nil() {
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match ((), false) {
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//~^ ERROR non-exhaustive patterns: `((), false)` not covered
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((), true) => ()
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}
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}
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fn main() {}
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