mirror of https://github.com/rust-lang/rust
21 lines
401 B
Rust
21 lines
401 B
Rust
#![allow(dead_code)]
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#![allow(unused_variables)]
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#![allow(non_snake_case)]
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#![deny(unreachable_patterns)]
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enum Stack<T> {
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Nil,
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Cons(T, Box<Stack<T>>)
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}
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fn is_empty<T>(s: Stack<T>) -> bool {
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match s {
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Nil => true,
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//~^ ERROR pattern binding `Nil` is named the same as one of the variants of the type `Stack`
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_ => false
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//~^ ERROR unreachable pattern
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}
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}
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fn main() {}
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