mirror of
https://github.com/rust-lang/rust
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30 lines
432 B
Rust
30 lines
432 B
Rust
// run-pass
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// compile-flags:-Zmir-opt-level=3
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pub enum Enum {
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A,
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B,
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}
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trait SliceIndex {
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type Output;
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fn get(&self) -> &Self::Output;
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}
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impl SliceIndex for usize {
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type Output = Enum;
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#[inline(never)]
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fn get(&self) -> &Enum {
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&Enum::A
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}
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}
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#[inline(always)]
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fn index<T: SliceIndex>(t: &T) -> &T::Output {
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t.get()
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}
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fn main() {
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match *index(&0) { Enum::A => true, _ => false };
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}
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