mirror of https://github.com/rust-lang/rust
25 lines
615 B
Rust
25 lines
615 B
Rust
// A method's receiver must be well-formed, even if it has late-bound regions.
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// Because of this, a method's substs being well-formed does not imply that
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// the method's implied bounds are met.
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struct Foo<'b>(Option<&'b ()>);
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trait Bar<'b> {
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fn xmute<'a>(&'a self, u: &'b u32) -> &'a u32;
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}
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impl<'b> Bar<'b> for Foo<'b> {
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fn xmute<'a>(&'a self, u: &'b u32) -> &'a u32 { u }
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}
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fn main() {
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let f = Foo(None);
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let f2 = f;
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let dangling = {
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let pointer = Box::new(42);
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f2.xmute(&pointer)
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};
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//~^^ ERROR `pointer` does not live long enough
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println!("{}", dangling);
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}
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