Trait DeviceSample 

pub trait DeviceSample: Sized + Clone {
    // Required methods
    fn sample_kind() -> &'static str;
    fn seq(&self) -> u64;
    fn to_expr(&self) -> Expr;
    fn from_expr(expr: &Expr) -> DeviceSampleResult<Self>;
}

Trait implemented by concrete device sample records.

A sample has a stable kind tag, a monotone sequence number, and strict expression round-tripping. from_expr is fail-closed: it returns an error for missing fields, wrong field types, unknown kind tags, or malformed sequence numbers.

Required Methods

fn sample_kind() -> &'static str

Stable bare sample kind, such as device-caps.

fn seq(&self) -> u64

Monotone sequence number for ordering and aging samples.

fn to_expr(&self) -> Expr

Encodes the sample as a self-describing expression map.

fn from_expr(expr: &Expr) -> DeviceSampleResult<Self>

Decodes the sample from its expression map.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementors

impl DeviceSample for DeviceCaps