Struct BoundedRope 

pub struct BoundedRope {
    pub window: usize,
    pub half: usize,
    pub cos: Vec<f32>,
    pub sin: Vec<f32>,
}

Relative-rotation table: cos/sin[Δ][i] = cos/sin(Δ · inv_freq[i]) for Δ ∈ [0, W), built once per model from the layer’s inv_freq (same convention as attention::rope_rotate_scaled, angles computed in f64 so the table carries only the final f32 rounding).

Fields

window: usize

half: usize

rotary_dim / 2: dims [0, half) pair with [half, 2·half); dims past 2·half are copied unrotated (partial rotary).

cos: Vec<f32>

sin: Vec<f32>

Implementations

impl BoundedRope

pub fn new(window: usize, inv_freq: &[f32], rope_scale: f32) -> Self

rope_scale is the YaRN attention factor the absolute path applies to BOTH q and k; the relative path rotates only q, so the window score carries scale² ((s·R(t)q)·(s·R(j)k) = s²·(R(t−j)q)·k).

pub fn rotate(&self, delta: usize, x: &[f32], out: &mut [f32])

out = R(Δ) x (first 2·half dims rotated, the rest copied).

Trait Implementations

impl Clone for BoundedRope

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BoundedRope

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

Formats the value using the given formatter.