mirror of https://github.com/rust-lang/rust
40 lines
1.0 KiB
Rust
40 lines
1.0 KiB
Rust
// Check that we imply outlives-bounds on lazy type aliases.
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//@ revisions: pos neg
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//@[pos] check-pass
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#![feature(lazy_type_alias)]
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#![allow(incomplete_features)]
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type TypeOutlives<'a, T> = &'a T;
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type RegionOutlives<'a, 'b> = &'a &'b ();
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// Ensure that we imply bounds from the explicit bounds of weak aliases.
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struct Outer0<'a, T>(ExplicitTypeOutlives<'a, T>);
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type ExplicitTypeOutlives<'a, T: 'a> = (&'a (), T);
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// Ensure that we imply bounds from the implied bounds of weak aliases.
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type Outer1<'b, U> = TypeOutlives<'b, U>;
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#[cfg(neg)]
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fn env0<'any>() {
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let _: TypeOutlives<'static, &'any ()>; //[neg]~ ERROR lifetime may not live long enough
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}
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#[cfg(neg)]
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fn env1<'any>() {
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let _: RegionOutlives<'static, 'any>; //[neg]~ ERROR lifetime may not live long enough
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}
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#[cfg(neg)]
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fn env2<'any>() {
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let _: Outer0<'static, &'any ()>; //[neg]~ ERROR lifetime may not live long enough
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}
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#[cfg(neg)]
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fn env3<'any>() {
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let _: Outer1<'static, &'any ()>; //[neg]~ ERROR lifetime may not live long enough
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}
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fn main() {}
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