80 lines
1.3 KiB
Rust
80 lines
1.3 KiB
Rust
// edition:2021
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#![feature(never_type)]
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// Should fake read the discriminant and throw an error
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fn test1() {
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let x: !;
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let c1 = || match x { };
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//~^ ERROR E0381
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}
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// Should fake read the discriminant and throw an error
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fn test2() {
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let x: !;
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let c2 = || match x { _ => () };
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//~^ ERROR E0381
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}
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// Testing single variant patterns
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enum SingleVariant {
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Points(u32)
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}
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// Should fake read the discriminant and throw an error
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fn test3() {
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let variant: !;
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let c = || {
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//~^ ERROR E0381
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match variant {
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SingleVariant::Points(_) => {}
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}
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};
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c();
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}
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// Should fake read the discriminant and throw an error
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fn test4() {
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let variant: !;
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let c = || { //~ ERROR E0381
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match variant {
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SingleVariant::Points(a) => {
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println!("{:?}", a);
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}
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}
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};
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c();
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}
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fn test5() {
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let t: !;
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let g: !;
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let a = || {
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match g { }; //~ ERROR E0381
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let c = || {
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match t { }; //~ ERROR E0381
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};
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c();
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};
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}
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// Should fake read the discriminant and throw an error
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fn test6() {
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let x: u8;
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let c1 = || match x { };
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//~^ ERROR E0381
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//~| ERROR: non-exhaustive patterns: type `u8` is non-empty
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}
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fn main() {
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test1();
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test2();
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test3();
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test4();
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test5();
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test6();
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}
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