19 lines
379 B
Rust
19 lines
379 B
Rust
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// Test that supertraits can't be assumed in impls of
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// `rustc_specialization_trait`, as such impls would
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// allow specializing on the supertrait.
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#![feature(min_specialization)]
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#![feature(rustc_attrs)]
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#[rustc_specialization_trait]
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trait SpecMarker: Default {
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fn f();
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}
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impl<T: Default> SpecMarker for T {
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//~^ ERROR cannot specialize
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fn f() {}
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}
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fn main() {}
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