55 lines
708 B
Rust
55 lines
708 B
Rust
// check-pass
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#![warn(dead_code)]
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const TLC: usize = 4;
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trait Tr { fn doit(&self); }
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impl Tr for [usize; TLC] {
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fn doit(&self) {
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println!("called 4");
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}
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}
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struct X;
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struct Y;
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struct Z;
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trait Foo<T> {
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type Ty;
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fn foo() -> Self::Ty;
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}
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impl Foo<Y> for X {
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type Ty = Z;
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fn foo() -> Self::Ty {
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unimplemented!()
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}
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}
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enum E {
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A,
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B, //~ WARN variants `B` and `C` are never constructed
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C,
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}
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type F = E;
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impl E {
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fn check(&self) -> bool {
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match self {
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Self::A => true,
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Self::B => false,
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F::C => false,
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}
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}
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}
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fn main() {
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let s = [0,1,2,3];
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s.doit();
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X::foo();
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E::A.check();
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}
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