Trait WireKey 

pub trait WireKey: Sealed {
    // Required methods
    fn resolve<M: Metadata + ?Sized>(self, metadata: &M) -> Option<usize>;
    fn describe(&self) -> String;
}

A wire reference — either a pre-resolved index (fast path) or a name (resolved against the context’s input map).

Lets set_wire / get_wire accept either form so callers can hold an index when they have one and a name when they don’t, without needing two distinct method names.

Sealed: only the in-crate impls (usize, &str, String) are valid wire keys. External implementors are not permitted because the resolution semantics are tied to the context’s input layout.

Required Methods

fn resolve<M: Metadata + ?Sized>(self, metadata: &M) -> Option<usize>

Resolve to a wire index in metadata. Returns None when the key doesn’t match a wire on this context.

fn describe(&self) -> String

Diagnostic rendering of this key — used by Dataflow::set_wire when constructing WriteError::UnknownWire so the error names what the caller passed.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementations on Foreign Types

impl WireKey for &String

fn resolve<M: Metadata + ?Sized>(self, metadata: &M) -> Option<usize>

fn describe(&self) -> String

impl WireKey for &str

fn resolve<M: Metadata + ?Sized>(self, metadata: &M) -> Option<usize>

fn describe(&self) -> String

impl WireKey for String

fn resolve<M: Metadata + ?Sized>(self, metadata: &M) -> Option<usize>

fn describe(&self) -> String

impl WireKey for usize

fn resolve<M: Metadata + ?Sized>(self, _: &M) -> Option<usize>

fn describe(&self) -> String

Implementors