38 lines
639 B
Rust
38 lines
639 B
Rust
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#![deny(dead_code)]
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struct Foo(u8); //~ ERROR struct `Foo` is never constructed
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enum Bar { //~ ERROR enum `Bar` is never used
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Var1(u8),
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Var2(u8),
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}
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pub trait Tr1 {
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fn f1() -> Self;
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}
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impl Tr1 for Foo {
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fn f1() -> Foo {
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let f = Foo(0);
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let Foo(tag) = f;
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Foo(tag)
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}
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}
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impl Tr1 for Bar {
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fn f1() -> Bar {
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let b = Bar::Var1(0);
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let b = if let Bar::Var1(_) = b {
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Bar::Var1(0)
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} else {
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Bar::Var2(0)
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};
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match b {
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Bar::Var1(_) => Bar::Var2(0),
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Bar::Var2(_) => Bar::Var1(0),
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}
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}
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}
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fn main() {}
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