Enum In 

pub enum In<T> {
    Const(T),
    Param {
        name: String,
        fallback: T,
        min: Option<f64>,
        max: Option<f64>,
    },
    Port {
        ix: usize,
        name: &'static str,
    },
}

A node field whose value is an inline literal, a $param reference, or a scalar input port. Resolve with In::get inside Node::eval.

Variants

Const(T)

Inline literal, baked at build time.

Param

$param reference: read EvalCtx::params at eval time, fall back to the declaration default, clamp numbers to the declaration’s min / max.

Fields

name: String

fallback: T

min: Option<f64>

max: Option<f64>

Port

@node connection on a scalar input port.

Fields

ix: usize

Positional index into Node::inputs().

name: &'static str

Field name, for error messages.

Implementations

impl<T: ScalarType> In<T>

pub fn get( &self, ctx: &EvalCtx<'_>, inputs: &[Option<PortValue>], ) -> Result<T, EvalError>

Resolve the field’s value for one eval.

pub fn param_hash(&self, h: &mut Xxh3)

Feed the field’s static identity into Node::param_hash. Runtime $param values are keyed via Node::param_refs; a port-fed value is keyed via the upstream node’s hash.

pub fn static_bound(&self) -> Option<f64>

where T: Into<f64>,

Static upper bound usable for build-time decisions (pad propagation): the literal value, or a $param’s declared max. None for ports and unbounded params — pad-affecting fields must reject those at build time.

Trait Implementations

impl<T: Clone> Clone for In<T>

fn clone(&self) -> In<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for In<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.