Trait Resource 

pub trait Resource:
    Send
    + Sync
    + Debug
    + 'static {
    // Required methods
    fn close(&self) -> ValueResult<()>;
    fn is_closed(&self) -> bool;
    fn resource_type(&self) -> &'static str;
    fn as_any(&self) -> &dyn Any;
}

A closeable, ref-counted resource (file handle, socket, etc.).

All methods take &self because the inner state is behind a Mutex.

Required Methods

fn close(&self) -> ValueResult<()>

Close the resource. Idempotent — calling on an already-closed resource is a no-op.

fn is_closed(&self) -> bool

Whether this resource has been closed.

fn resource_type(&self) -> &'static str

A short tag for display, e.g. "reader", "writer".

fn as_any(&self) -> &dyn Any

Downcast support so native fns can get the concrete type.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors