use FuncUnsafe;
use std::marker::PhantomData;
use Symbol;
/// A pointer to a shared function which uses a bound lifetime to avoid outliving its library.
pub struct Func<'a, T> {
func: FuncUnsafe<T>,
lifetime: PhantomData<&'a ()>,
}
impl <'a, T> Func<'a, T> {
/// Creates a new [Func](struct.Func.html).
/// This should only be called within the library.
pub fn new(func: FuncUnsafe<T>) -> Self {
Func {
func: func,
lifetime: PhantomData,
}
}
}
impl <'a, T> Symbol<T> for Func<'a, T>
where T: Copy {
unsafe fn get(&self) -> T {
self.func
}
}