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This post is auto-generated from RSS feed The Rust Programming Language Forum - Latest topics. Source: How to get a static reference of a generic constant?

This trait cannot be compiled

trait GetConst {
    type Get: Copy;
    const GET: Self::Get;
    
    fn get() -> &'static Self::Get {
        &Self::GET
    }
}

which gives an error

error[E0515]: cannot return reference to temporary value
 --> src/lib.rs:8:9
  |
8 |         &Self::GET
  |         ^---------
  |         ||
  |         |temporary value created here
  |         returns a reference to data owned by the current function

For more information about this error, try `rustc --explain E0515`.

I know some types with destructors that can be put in constant, like Vec<T>, which makes itself cannot be static. But is there some trait bound that can constrain a type to must have no destructor, to prevent something like Vec<T> , make this example compile? Thanks.

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