Struct Config 

pub struct Config<T>(pub T);

Marker wrapper signalling that the wrapped wire is a configuration input — expensive to change because the node keeps internal state (LUTs, alias tables, parsed specs) derived from it. The macro emits the matching slot with Port::config() (SRD 15 §“WireCost::Config”) so the compiler warns on cycle-time binding.

In-spirit replacement for a #[wire_cost(Config)] arg-level attribute — operator declares the cost intent via the type system. Body unwraps with .0 or via Deref.

Tuple Fields

0: T

Trait Implementations

impl<T> Deref for Config<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T: Wire> Wire for Config<T>

const PORT: PortType = T::PORT

Static port type for the DSL type-checker.

const JIT: Option<JitType> = T::JIT

JIT carrier classification. Some(_) means the type rides the Phase-2 u64 buffer; None means typed-eval only.

const RESOLVER: Option<DefaultResolver> = T::RESOLVER

SRD-53 §“Source-string call-site sugar” — auto-resolver for Str-typed upstream wires feeding this slot. None (the default) disables auto-promotion; the workload must supply the wire’s actual port type directly. Set via the Resolved<R, T> marker wrapper.

const WIRE_COST: WireCost = crate::ast::WireCost::Config

SRD-15 §“WireCost::Config” — cost class for this wire. Defaults to WireCost::Data (cheap per-cycle input). Set to WireCost::Config via the Config<T> marker wrapper to signal that the wire is rarely-changing and the compiler should warn on cycle-time binding.

fn extract(v: &Value) -> Self

Pull a typed value out of a Value wire.

fn inject(self) -> Value

Push a typed value back into the Value outputs stream.