Created
September 28, 2013 19:53
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A little experiment that has led to a question about lifetimes in Rust.
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| struct Thunk<'a, T> { | |
| f : ~fn() -> & 'a T | |
| } |
struct Thunk {
f : ~fn<'a> (& 'a mut Thunk) -> & 'a T
}
impl Thunk {
fn force <'a> (& 'a mut self) -> & 'a T {
return (self.f) (self);
}
}
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hello.rs:2:22: 2:23 error: Illegal lifetime 'a: this lifetime must be declared
hello.rs:2 f : ~fn() -> & 'a T