38 lines
860 B
Rust
38 lines
860 B
Rust
// Can't use unit struct as enum pattern
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//@ aux-build:empty-struct.rs
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extern crate empty_struct;
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use empty_struct::*;
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struct Empty2();
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enum E {
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Empty4()
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}
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// remove attribute after warning cycle and promoting warnings to errors
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fn main() {
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let e2 = Empty2();
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let e4 = E::Empty4();
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let xe6 = XEmpty6();
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let xe5 = XE::XEmpty5();
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match e2 {
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Empty2 => () //~ ERROR match bindings cannot shadow tuple structs
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}
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match xe6 {
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XEmpty6 => () //~ ERROR match bindings cannot shadow tuple structs
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}
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match e4 {
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E::Empty4 => ()
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//~^ ERROR expected unit struct, unit variant or constant, found tuple variant `E::Empty4`
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}
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match xe5 {
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XE::XEmpty5 => (),
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//~^ ERROR expected unit struct, unit variant or constant, found tuple variant `XE::XEmpty5`
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_ => {},
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}
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}
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