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https://github.com/rust-lang/rust
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22 lines
417 B
Rust
22 lines
417 B
Rust
// ICE 'broken MIR: bad assignment: NoSolution'
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// on trait with default method and no impls
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// issue: rust-lang/rust#109869
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type Spanned<T> = (T, ());
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trait Span<T> {}
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impl<T> Span<T> for (T, ()) {}
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impl<F, T: From<F>> From<Spanned<F>> for dyn Span<T>
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where
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Self: Sized
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{
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fn from((from, ()): Spanned<F>) -> Self {
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(T::from(from), ())
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//~^ ERROR mismatched types
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}
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}
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pub fn main() {}
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