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13 lines
229 B
Rust
13 lines
229 B
Rust
enum Ast<'a> {
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Num(usize),
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Add(&'a Ast<'a>, &'a Ast<'a>)
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}
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fn mk_add_bad2<'a,'b>(x: &'a Ast<'a>, y: &'a Ast<'a>, z: &Ast) -> Ast<'b> {
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Ast::Add(x, y)
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//~^ ERROR lifetime may not live long enough
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}
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fn main() {
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}
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