mirror of https://github.com/rust-lang/rust
24 lines
797 B
Rust
24 lines
797 B
Rust
// Test that we are special casing "outlives" for opaque types.
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//
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// The return type of a closure is not required to outlive the closure. As such
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// the following code would not compile if we used a standard outlives check
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// when checking the return type, because the return type of the closure would
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// be `&ReEmpty i32`, and we don't allow `ReEmpty` to occur in the concrete
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// type used for an opaque type.
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//
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// However, opaque types are special cased to include check all regions in the
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// concrete type against the bound, which forces the return type to be
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// `&'static i32` here.
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//@ build-pass (FIXME(62277): could be check-pass?)
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fn make_identity() -> impl Sized {
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|x: &'static i32| x
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}
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fn make_identity_static() -> impl Sized + 'static {
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|x: &'static i32| x
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}
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fn main() {}
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