plonky2/src/iop/wire.rs

use std::ops::Range;

use crate::plonk::circuit_data::CircuitConfig;

/// Represents a wire in the circuit.
#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
pub struct Wire {
    /// The index of the associated gate.
    pub gate: usize,
    /// The index of the gate input wherein this wire is inserted.
    pub input: usize,
}

impl Wire {
    pub fn is_routable(&self, config: &CircuitConfig) -> bool {
        self.input < config.num_routed_wires
    }

    pub fn from_range(gate: usize, range: Range<usize>) -> Vec<Self> {
        range.map(|i| Wire { gate, input: i }).collect()
    }
}