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24 lines
521 B
Rust
24 lines
521 B
Rust
// Tests that default impls do not have to supply all items but regular impls do.
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#![feature(specialization)] //~ WARN the feature `specialization` is incomplete
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trait Foo {
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fn foo_one(&self) -> &'static str;
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fn foo_two(&self) -> &'static str;
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}
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struct MyStruct;
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default impl<T> Foo for T {
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fn foo_one(&self) -> &'static str {
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"generic"
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}
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}
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impl Foo for MyStruct {}
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//~^ ERROR not all trait items implemented, missing: `foo_two` [E0046]
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fn main() {
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println!("{}", MyStruct.foo_one());
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}
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