std::path::Path size problem

[jbbjarnason]

Quite new to this package but it looks really promising. Good job.

Currently I am trying to manually export third party crate with mirror and external feature.

One of the arguments are of type std::path::Path and I can't seem to generate code for it.

Just if I try to mirror std::path::Path

pub use std::path::Path;

#[frb(mirror(Path))]
pub struct _Path {
    inner: std::ffi::OsStr,
}
#[frb(external)]
impl Path {
    pub fn new(inner: String) -> Self {}
}

I get the following compilation error:

error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
    --> src/frb_generated.rs:313:5
     |
313  |     flutter_rust_bridge::for_generated::RustAutoOpaqueInner<Path>
     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
     |
     = help: within `std::path::Path`, the trait `Sized` is not implemented for `[u8]`, which is required by `std::path::Path: Sized`
note: required because it appears within the type `std::path::Path`
    --> /home/jonb/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/path.rs:2004:12
     |
2004 | pub struct Path {
     |            ^^^^
note: required by an implicit `Sized` bound in `RustAutoOpaqueInner`
    --> /home/jonb/.cargo/registry/src/index.crates.io-6f17d22bba15001f/flutter_rust_bridge-2.5.0/src/rust_auto_opaque/inner.rs:6:32
     |
6    | pub struct RustAutoOpaqueInner<T> {
     |                                ^ required by the implicit `Sized` requirement on this type parameter in `RustAutoOpaqueInner`

Is there some way around this?

[fzyzcjy]

Thank you!

&Path is like &str (roughly speaking, "borrowed"). Thus one way is to have PathBuf (which is like String - owned). Another way is to convert everything from/to String.