mirror of https://github.com/rust-lang/rust
24 lines
618 B
Rust
24 lines
618 B
Rust
// Test that we give a note when the old LUB/GLB algorithm would have
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// succeeded but the new code (which is stricter) gives an error.
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trait Foo<T, U> {}
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fn foo(x: &dyn for<'a, 'b> Foo<&'a u8, &'b u8>, y: &dyn for<'a> Foo<&'a u8, &'a u8>) {
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let z = match 22 {
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0 => x,
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_ => y,
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//~^ ERROR mismatched types
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//~| ERROR mismatched types
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};
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}
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fn bar(x: &dyn for<'a, 'b> Foo<&'a u8, &'b u8>, y: &dyn for<'a> Foo<&'a u8, &'a u8>) {
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// Accepted with explicit case:
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let z = match 22 {
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0 => x as &dyn for<'a> Foo<&'a u8, &'a u8>,
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_ => y,
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};
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}
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fn main() {}
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