How would I go about avoiding the lifetime parameter of an already existing struct in rust? I want to use it in a wasm project, and to be able to return it to javascript I can not use lifetimes.
The following does not work syntactically, but logically I don't see any reason for it not to. A.inner will never outlive A.buf, since they are in the same struct. I can not, however, find any way to express this in rust.
struct AInner<'a> {
parsed_data: u32,
rest: &'a [u8],
}
struct A {
buf: Vec<u8>,
inner: AInner<????> // AInner.rest is referencing A.buf
}
You could use Rc
and share the pointer:
use std::rc::Rc;
struct AInner {
parsed_data: u32,
rest: Rc<Vec<u8>>,
}
struct A {
buf: Rc<Vec<u8>>,
inner: AInner
}
impl A {
pub fn new(v: Vec<u8>, parsed_data: u32) -> Self {
let buf = Rc::new(v);
A {
buf: buf.clone(),
inner: AInner {
rest: buf,
parsed_data
}
}
}
}
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