29 lines
538 B
Rust
29 lines
538 B
Rust
// run-pass
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#![allow(dead_code)]
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trait Deserializer {
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fn read_int(&self) -> isize;
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}
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trait Deserializable<D:Deserializer> {
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fn deserialize(d: &D) -> Self;
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}
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impl<D:Deserializer> Deserializable<D> for isize {
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fn deserialize(d: &D) -> isize {
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return d.read_int();
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}
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}
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struct FromThinAir { dummy: () }
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impl Deserializer for FromThinAir {
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fn read_int(&self) -> isize { 22 }
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}
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pub fn main() {
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let d = FromThinAir { dummy: () };
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let i: isize = Deserializable::deserialize(&d);
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assert_eq!(i, 22);
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}
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