如何克隆 Vec <Box<dyn SomeTrait> &gt; 在一个物体上？

Question

I have the following trait definition representing a sub-block within a DSL:

pub trait SubBlock {
    fn get_command(&self) -> Command;
    fn get_parent_id(&self) -> u32;
}

Answer 1

Here

        .map(|bsb| {
          *bsb
        })

you trigger a Copy not a Clone .

To be able to .clone() values, you need to know, that they implement the Clone trait.

So make it

pub children: Option<Vec<Box<dyn SubBlock + Clone>>>

and implement Clone for all the things, that might end up in that vector and then use .clone() .

The rest should become easier after that.