24 lines
419 B
Rust
24 lines
419 B
Rust
trait TraitA {
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fn method_a(&self) -> isize;
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}
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trait TraitB {
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fn gimme_an_a<A:TraitA>(&self, a: A) -> isize;
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}
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impl TraitB for isize {
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fn gimme_an_a<A:TraitA>(&self, a: A) -> isize {
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a.method_a() + *self
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}
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}
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fn call_it<B:TraitB>(b: B) -> isize {
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let y = 4;
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b.gimme_an_a(y) //~ ERROR `{integer}: TraitA` is not satisfied
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}
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fn main() {
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let x = 3;
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assert_eq!(call_it(x), 22);
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}
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