45 lines
581 B
Rust
45 lines
581 B
Rust
// Issue #12470.
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trait X {
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fn get_i(&self) -> isize;
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}
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struct B {
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i: isize
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}
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impl X for B {
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fn get_i(&self) -> isize {
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self.i
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}
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}
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impl Drop for B {
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fn drop(&mut self) {
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println!("drop");
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}
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}
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struct A<'r> {
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p: &'r (dyn X + 'r)
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}
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fn make_a(p: &dyn X) -> A {
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A{p:p}
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}
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fn make_make_a<'a>() -> A<'a> {
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let b: Box<B> = Box::new(B {
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i: 1,
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});
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let bb: &B = &*b;
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make_a(bb) //~ ERROR cannot return value referencing local data `*b`
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}
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fn main() {
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let a = make_make_a();
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println!("{}", a.p.get_i());
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}
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