35 lines
849 B
Rust
35 lines
849 B
Rust
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// Assuming that the hidden type in these tests is `&'_#15r u8`,
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// we have a member constraint: `'_#15r member ['static, 'a, 'b, 'c]`.
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//
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// Make sure we pick up the minimum non-ambiguous region among them.
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// We will have to exclude `['b, 'c]` because they're incomparable,
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// and then we should pick `'a` because we know `'static: 'a`.
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// check-pass
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trait Cap<'a> {}
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impl<T> Cap<'_> for T {}
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fn type_test<'a, T: 'a>() -> &'a u8 { &0 }
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// Basic test: make sure we don't bail out because 'b and 'c are incomparable.
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fn basic<'a, 'b, 'c>() -> impl Cap<'a> + Cap<'b> + Cap<'c>
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where
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'a: 'b,
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'a: 'c,
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{
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&0
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}
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// Make sure we don't pick `'static`.
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fn test_static<'a, 'b, 'c, T>() -> impl Cap<'a> + Cap<'b> + Cap<'c>
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where
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'a: 'b,
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'a: 'c,
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T: 'a,
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{
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type_test::<'_, T>() // This will fail if we pick 'static
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}
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fn main() {}
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