Method encode

nodedb-vector/src/quantize/binary_codec.rs:60–74

Encode an FP32 vector into binary sign bits. # Panics `UnifiedQuantizedVector::new` fails only on outlier-count/bitmask mismatches. With `outlier_bitmask = 0` and an empty outliers slice this can never happen. The `expect` is therefore unreachable in practice.

(&self, v: &[f32])

    /// mismatches. With `outlier_bitmask = 0` and an empty outliers slice this
    /// can never happen. The `expect` is therefore unreachable in practice.
    fn encode(&self, v: &[f32]) -> Self::Quantized {
        let bits = binary::encode(v);
        let header = QuantHeader {
            quant_mode: QuantMode::Binary as u16,
            dim: self.dim as u16,
            global_scale: 0.0,
            residual_norm: 0.0,
            dot_quantized: 0.0,
            outlier_bitmask: 0,
            reserved: [0; 8],
        };
        let uqv = UnifiedQuantizedVector::new(header, &bits, &[])
            .expect("BinaryCodec::encode: layout construction is infallible (no outliers)");
        BinaryQuantized(uqv)
    }

    /// Pre-encode the query to binary sign bits for fast Hamming comparison.
    fn prepare_query(&self, q: &[f32]) -> Self::Query {