mirror of https://github.com/rust-lang/rust.git
25 lines
576 B
Rust
25 lines
576 B
Rust
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// Regression test for #48071. This test used to ICE because -- in
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// the leak-check -- it would pass since we knew that the return type
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// was `'static`, and hence `'static: 'a` was legal even for a
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// placeholder region, but in NLL land it would fail because we had
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// rewritten `'static` to a region variable.
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//
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// check-pass
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trait Foo {
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fn foo(&self) { }
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}
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impl Foo for () {
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}
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type MakeFooFn = for<'a> fn(&'a u8) -> Box<dyn Foo + 'a>;
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fn make_foo(x: &u8) -> Box<dyn Foo + 'static> {
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Box::new(())
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}
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fn main() {
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let x: MakeFooFn = make_foo as MakeFooFn;
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}
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